| Filename | /home/ss5/perl5/perlbrew/perls/perl-5.22.0/lib/5.22.0/B/Deparse.pm |
| Statements | Executed 152 statements in 23.5ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 1 | 1 | 1 | 3.35ms | 3.35ms | B::Deparse::BEGIN@3368 |
| 1 | 1 | 1 | 187µs | 204µs | B::Deparse::BEGIN@363 |
| 1 | 1 | 1 | 83µs | 5.89ms | B::Deparse::BEGIN@55 |
| 1 | 1 | 1 | 13µs | 13µs | B::Deparse::BEGIN@2814 |
| 66 | 2 | 1 | 12µs | 12µs | B::Deparse::CORE:sort (opcode) |
| 1 | 1 | 1 | 12µs | 12µs | B::Deparse::BEGIN@2781 |
| 1 | 1 | 1 | 9µs | 16µs | B::Deparse::BEGIN@67 |
| 1 | 1 | 1 | 9µs | 34µs | B::Deparse::BEGIN@11 |
| 1 | 1 | 1 | 9µs | 16µs | B::Deparse::BEGIN@4831 |
| 1 | 1 | 1 | 9µs | 12µs | B::Deparse::BEGIN@4588 |
| 1 | 1 | 1 | 8µs | 8µs | B::Deparse::BEGIN@1679 |
| 1 | 1 | 1 | 8µs | 20µs | B::Deparse::BEGIN@4513 |
| 1 | 1 | 1 | 7µs | 23µs | B::Deparse::BEGIN@4589 |
| 1 | 1 | 1 | 7µs | 613µs | B::Deparse::BEGIN@12 |
| 1 | 1 | 1 | 6µs | 16µs | B::Deparse::BEGIN@2371 |
| 1 | 1 | 1 | 6µs | 16µs | B::Deparse::BEGIN@721 |
| 1 | 1 | 1 | 6µs | 18µs | B::Deparse::BEGIN@4514 |
| 1 | 1 | 1 | 6µs | 13µs | B::Deparse::BEGIN@972 |
| 1 | 1 | 1 | 5µs | 5µs | B::Deparse::BEGIN@870 |
| 1 | 1 | 1 | 5µs | 7µs | B::Deparse::BEGIN@50 |
| 1 | 1 | 1 | 4µs | 17µs | B::Deparse::BEGIN@51 |
| 1 | 1 | 1 | 3µs | 3µs | B::Deparse::CORE:qr (opcode) |
| 1 | 1 | 1 | 3µs | 3µs | B::Deparse::BEGIN@4723 |
| 1 | 1 | 1 | 2µs | 2µs | B::Deparse::BEGIN@52 |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::AUTOLOAD |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::DESTROY |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::WARN_MASK |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:1572] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:1649] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:2406] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:4598] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:4980] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:935] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::__ANON__[:981] |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::_features_from_bundle |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::_method |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::_op_is_or_was |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::_pessimise_walk |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::_pessimise_walk_exe |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::ambient_pragmas |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::anon_hash_or_list |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::assoc_class |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::balanced_delim |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::baseop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::begin_is_use |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::binop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::check_proto |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::code_list |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::coderef2text |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::collapse |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::compile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::const |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::const_dumper |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::const_sv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::cop_subs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::declare_hinthash |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::declare_hints |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::declare_warnings |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse_binop_left |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse_binop_right |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse_format |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse_root |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::deparse_sub |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::double_delim |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::dq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::dq_unop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::dquote |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::e_anoncode |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::e_method |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::elem |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::elem_or_slice_array_name |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::elem_or_slice_single_index |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::escape_re |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::escape_str |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::feature_enabled |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::find_our_type |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::find_scope |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::find_scope_en |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::find_scope_st |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::for_loop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::ftst |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::givwhen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::gv_name |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::gv_or_padgv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::hint_pragmas |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::indent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::indirop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::init |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_for_loop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_ifelse_cont |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_lexical_subs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_miniwhile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_scalar |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_scope |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_state |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::is_subscriptable |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::keyword |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::lex_in_scope |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::lineseq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::list_const |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::listop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::logassignop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::logop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::loop_common |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::loopex |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::mapop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::matchop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_local |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_my |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_parens |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_parens_func |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_parens_unop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_qualify |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::maybe_targmy |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::meth_rclass_sv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::meth_sv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::method |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::multideref_var_name |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::new |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::next_todo |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::null |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pad_subs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::padany |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::padname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::padname_sv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::padval |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pchr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pessimise |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pfixop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::populate_curcvlex |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_abs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_accept |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_add |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aeach |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aelem |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aelemfast |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aelemfast_lex |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_akeys |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_alarm |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_and |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_andassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_anonlist |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_aslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_atan2 |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_av2arylen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_avalues |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_backtick |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_bind |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_binmode |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_bit_and |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_bit_or |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_bit_xor |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_bless |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_boolkeys |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_break |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_caller |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chmod |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chomp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chown |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_chroot |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_close |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_closedir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_complement |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_concat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_cond_expr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_connect |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_const |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_continue |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_cos |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_crypt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dbmclose |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dbmopen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dbstate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_defined |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_delete |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_die |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_divide |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dofile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dor |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dorassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_dump |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_each |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_egrent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ehostent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_enetent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_entereval |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_entersub |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_enterwrite |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_eof |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_eprotoent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_epwent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_eq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_eservent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_exec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_exists |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_exit |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_exp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fcntl |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fileno |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_flock |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_flop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fork |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_formline |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftatime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftbinary |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftblk |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftchr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftctime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fteexec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fteowned |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fteread |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftewrite |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftfile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftis |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftlink |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftmtime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftpipe |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftrexec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftrowned |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftrread |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftrwrite |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftsgid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftsize |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftsock |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftsuid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftsvtx |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fttext |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_fttty |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ftzero |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ge |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gelem |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getlogin |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getpeername |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getpgrp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getppid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getpriority |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_getsockname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ggrent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ggrgid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ggrnam |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ghbyaddr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ghbyname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ghostent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_glob |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gmtime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gnbyaddr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gnbyname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gnetent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_goto |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gpbyname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gpbynumber |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gprotoent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gpwent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gpwnam |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gpwuid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_grepstart |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_grepwhile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gsbyname |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gsbyport |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gservent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gsockopt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_gvsv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_helem |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_hex |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_hslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_add |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_divide |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_eq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_ge |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_gt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_le |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_lt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_modulo |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_multiply |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_ncmp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_ne |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_negate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_postdec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_postinc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_predec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_preinc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_i_subtract |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_index |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_int |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_introcv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ioctl |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_join |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_keys |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_kill |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_kvaslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_kvhslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_last |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lcfirst |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_le |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_leave |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_leavegiven |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_leaveloop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_leavetry |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_leavewhen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_left_shift |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_length |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lineseq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_link |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_list |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_listen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_localtime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lock |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_log |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lstat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lvavref |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lvref |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_lvrefslice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_mapstart |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_mapwhile |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_match |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_mkdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_modulo |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_msgctl |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_msgget |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_msgrcv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_msgsnd |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_multideref |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_multiply |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ncmp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ne |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_negate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_next |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_nextstate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_not |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_null |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_oct |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_once |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_open |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_open_dir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_or |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_orassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ord |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pack |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_padav |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_padcv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_padhv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_padsv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pipe_op |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pos |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_postdec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_postinc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pow |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_predec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_preinc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_print |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_prototype |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_prtf |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_push |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_pushre |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_qr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_quotemeta |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rand |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rcatline |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_read |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_readdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_readline |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_readlink |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_recv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_redo |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ref |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_refassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_refgen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_regcomp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rename |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_repeat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_require |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_reset |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_return |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_reverse |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rewinddir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_right_shift |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rindex |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rmdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_runcv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rv2av |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rv2cv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rv2gv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rv2hv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_rv2sv |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sassign |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_say |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sbit_and |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sbit_or |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sbit_xor |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_scalar |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_schomp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_schop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_scmp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_scomplement |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_scope |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_seek |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_seekdir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_select |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_semctl |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_semget |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_semop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_send |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_seq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_setpgrp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_setpriority |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_setstate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sge |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sgrent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sgt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shift |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shmctl |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shmget |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shmread |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shmwrite |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shostent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_shutdown |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sin |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sle |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sleep |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_slt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_smartmatch |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sne |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_snetent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_socket |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sockpair |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sort |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_splice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_split |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sprintf |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sprotoent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_spwent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sqrt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_srand |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_srefgen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sselect |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sservent |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ssockopt |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_stat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_stringify |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_stub |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_study |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_subst |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_substr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_subtract |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_symlink |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_syscall |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sysopen |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sysread |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_sysseek |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_system |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_syswrite |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_tell |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_telldir |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_tie |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_tied |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_time |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_tms |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_trans |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_transr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_truncate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_uc |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_ucfirst |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_umask |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_undef |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_unlink |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_unpack |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_unshift |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_unstack |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_untie |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_utime |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_values |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_vec |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_wait |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_waitpid |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_wantarray |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_warn |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pp_xor |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::print_protos |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::pure_string |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::range |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::re_dq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::re_dq_disambiguate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::re_flags |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::re_unback |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::re_uninterp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::real_concat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::real_negate |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::regcomp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::repeat |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::retscalar |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::rv2gv_or_string |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::rv2x |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::scopeop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::seq_subs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::single_delim |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::slice |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::split |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::split_float |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::stash_subs |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::stash_variable |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::stash_variable_name |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::style_opts |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::todo |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::tr_chr |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::tr_decode_byte |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::tr_decode_utf8 |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::unback |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::uninterp |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::unop |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::walk_lineseq |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::want_list |
| 0 | 0 | 0 | 0s | 0s | B::Deparse::want_scalar |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | # B::Deparse.pm | ||||
| 2 | # Copyright (c) 1998-2000, 2002, 2003, 2004, 2005, 2006 Stephen McCamant. | ||||
| 3 | # All rights reserved. | ||||
| 4 | # This module is free software; you can redistribute and/or modify | ||||
| 5 | # it under the same terms as Perl itself. | ||||
| 6 | |||||
| 7 | # This is based on the module of the same name by Malcolm Beattie, | ||||
| 8 | # but essentially none of his code remains. | ||||
| 9 | |||||
| 10 | package B::Deparse; | ||||
| 11 | 2 | 55µs | 2 | 59µs | # spent 34µs (9+25) within B::Deparse::BEGIN@11 which was called:
# once (9µs+25µs) by YAML::XS::BEGIN@57 at line 11 # spent 34µs making 1 call to B::Deparse::BEGIN@11
# spent 25µs making 1 call to Exporter::import |
| 12 | 1 | 4µs | 1 | 606µs | # spent 613µs (7+606) within B::Deparse::BEGIN@12 which was called:
# once (7µs+606µs) by YAML::XS::BEGIN@57 at line 47 # spent 606µs making 1 call to Exporter::import |
| 13 | OPf_WANT OPf_WANT_VOID OPf_WANT_SCALAR OPf_WANT_LIST | ||||
| 14 | OPf_KIDS OPf_REF OPf_STACKED OPf_SPECIAL OPf_MOD OPf_PARENS | ||||
| 15 | OPpLVAL_INTRO OPpOUR_INTRO OPpENTERSUB_AMPER OPpSLICE OPpCONST_BARE | ||||
| 16 | OPpTRANS_SQUASH OPpTRANS_DELETE OPpTRANS_COMPLEMENT OPpTARGET_MY | ||||
| 17 | OPpEXISTS_SUB OPpSORT_NUMERIC OPpSORT_INTEGER OPpREPEAT_DOLIST | ||||
| 18 | OPpSORT_REVERSE OPpMULTIDEREF_EXISTS OPpMULTIDEREF_DELETE | ||||
| 19 | SVf_IOK SVf_NOK SVf_ROK SVf_POK SVpad_OUR SVf_FAKE SVs_RMG SVs_SMG | ||||
| 20 | SVs_PADTMP SVpad_TYPED | ||||
| 21 | CVf_METHOD CVf_LVALUE | ||||
| 22 | PMf_KEEP PMf_GLOBAL PMf_CONTINUE PMf_EVAL PMf_ONCE | ||||
| 23 | PMf_MULTILINE PMf_SINGLELINE PMf_FOLD PMf_EXTENDED PMf_EXTENDED_MORE | ||||
| 24 | PADNAMEt_OUTER | ||||
| 25 | MDEREF_reload | ||||
| 26 | MDEREF_AV_pop_rv2av_aelem | ||||
| 27 | MDEREF_AV_gvsv_vivify_rv2av_aelem | ||||
| 28 | MDEREF_AV_padsv_vivify_rv2av_aelem | ||||
| 29 | MDEREF_AV_vivify_rv2av_aelem | ||||
| 30 | MDEREF_AV_padav_aelem | ||||
| 31 | MDEREF_AV_gvav_aelem | ||||
| 32 | MDEREF_HV_pop_rv2hv_helem | ||||
| 33 | MDEREF_HV_gvsv_vivify_rv2hv_helem | ||||
| 34 | MDEREF_HV_padsv_vivify_rv2hv_helem | ||||
| 35 | MDEREF_HV_vivify_rv2hv_helem | ||||
| 36 | MDEREF_HV_padhv_helem | ||||
| 37 | MDEREF_HV_gvhv_helem | ||||
| 38 | MDEREF_ACTION_MASK | ||||
| 39 | MDEREF_INDEX_none | ||||
| 40 | MDEREF_INDEX_const | ||||
| 41 | MDEREF_INDEX_padsv | ||||
| 42 | MDEREF_INDEX_gvsv | ||||
| 43 | MDEREF_INDEX_MASK | ||||
| 44 | MDEREF_FLAG_last | ||||
| 45 | MDEREF_MASK | ||||
| 46 | MDEREF_SHIFT | ||||
| 47 | 1 | 29µs | 1 | 613µs | ); # spent 613µs making 1 call to B::Deparse::BEGIN@12 |
| 48 | |||||
| 49 | 1 | 500ns | $VERSION = '1.35'; | ||
| 50 | 2 | 14µs | 2 | 8µs | # spent 7µs (5+1) within B::Deparse::BEGIN@50 which was called:
# once (5µs+1µs) by YAML::XS::BEGIN@57 at line 50 # spent 7µs making 1 call to B::Deparse::BEGIN@50
# spent 1µs making 1 call to strict::import |
| 51 | 2 | 14µs | 2 | 29µs | # spent 17µs (4+13) within B::Deparse::BEGIN@51 which was called:
# once (4µs+13µs) by YAML::XS::BEGIN@57 at line 51 # spent 17µs making 1 call to B::Deparse::BEGIN@51
# spent 13µs making 1 call to vars::import |
| 52 | 2 | 35µs | 1 | 2µs | # spent 2µs within B::Deparse::BEGIN@52 which was called:
# once (2µs+0s) by YAML::XS::BEGIN@57 at line 52 # spent 2µs making 1 call to B::Deparse::BEGIN@52 |
| 53 | 1 | 484µs | require feature; | ||
| 54 | |||||
| 55 | # spent 5.89ms (83µs+5.80) within B::Deparse::BEGIN@55 which was called:
# once (83µs+5.80ms) by YAML::XS::BEGIN@57 at line 70 | ||||
| 56 | # List version-specific constants here. | ||||
| 57 | # Easiest way to keep this code portable between version looks to | ||||
| 58 | # be to fake up a dummy constant that will never actually be true. | ||||
| 59 | 1 | 3µs | foreach (qw(OPpSORT_INPLACE OPpSORT_DESCEND OPpITER_REVERSED OPpCONST_NOVER | ||
| 60 | OPpPAD_STATE PMf_SKIPWHITE RXf_SKIPWHITE | ||||
| 61 | RXf_PMf_CHARSET RXf_PMf_KEEPCOPY CVf_ANONCONST | ||||
| 62 | CVf_LOCKED OPpREVERSE_INPLACE OPpSUBSTR_REPL_FIRST | ||||
| 63 | PMf_NONDESTRUCT OPpCONST_ARYBASE OPpEVAL_BYTES | ||||
| 64 | OPpLVREF_TYPE OPpLVREF_SV OPpLVREF_AV OPpLVREF_HV | ||||
| 65 | OPpLVREF_CV OPpLVREF_ELEM SVpad_STATE)) { | ||||
| 66 | 46 | 18µs | 23 | 5.80ms | eval { import B $_ }; # spent 5.80ms making 23 calls to Exporter::import, avg 252µs/call |
| 67 | 2 | 40µs | 2 | 23µs | # spent 16µs (9+7) within B::Deparse::BEGIN@67 which was called:
# once (9µs+7µs) by YAML::XS::BEGIN@57 at line 67 # spent 16µs making 1 call to B::Deparse::BEGIN@67
# spent 7µs making 1 call to strict::unimport |
| 68 | 23 | 49µs | *{$_} = sub () {0} unless *{$_}{CODE}; | ||
| 69 | } | ||||
| 70 | 1 | 155µs | 1 | 5.89ms | } # spent 5.89ms making 1 call to B::Deparse::BEGIN@55 |
| 71 | |||||
| 72 | # Changes between 0.50 and 0.51: | ||||
| 73 | # - fixed nulled leave with live enter in sort { } | ||||
| 74 | # - fixed reference constants (\"str") | ||||
| 75 | # - handle empty programs gracefully | ||||
| 76 | # - handle infinite loops (for (;;) {}, while (1) {}) | ||||
| 77 | # - differentiate between 'for my $x ...' and 'my $x; for $x ...' | ||||
| 78 | # - various minor cleanups | ||||
| 79 | # - moved globals into an object | ||||
| 80 | # - added '-u', like B::C | ||||
| 81 | # - package declarations using cop_stash | ||||
| 82 | # - subs, formats and code sorted by cop_seq | ||||
| 83 | # Changes between 0.51 and 0.52: | ||||
| 84 | # - added pp_threadsv (special variables under USE_5005THREADS) | ||||
| 85 | # - added documentation | ||||
| 86 | # Changes between 0.52 and 0.53: | ||||
| 87 | # - many changes adding precedence contexts and associativity | ||||
| 88 | # - added '-p' and '-s' output style options | ||||
| 89 | # - various other minor fixes | ||||
| 90 | # Changes between 0.53 and 0.54: | ||||
| 91 | # - added support for new 'for (1..100)' optimization, | ||||
| 92 | # thanks to Gisle Aas | ||||
| 93 | # Changes between 0.54 and 0.55: | ||||
| 94 | # - added support for new qr// construct | ||||
| 95 | # - added support for new pp_regcreset OP | ||||
| 96 | # Changes between 0.55 and 0.56: | ||||
| 97 | # - tested on base/*.t, cmd/*.t, comp/*.t, io/*.t | ||||
| 98 | # - fixed $# on non-lexicals broken in last big rewrite | ||||
| 99 | # - added temporary fix for change in opcode of OP_STRINGIFY | ||||
| 100 | # - fixed problem in 0.54's for() patch in 'for (@ary)' | ||||
| 101 | # - fixed precedence in conditional of ?: | ||||
| 102 | # - tweaked list paren elimination in 'my($x) = @_' | ||||
| 103 | # - made continue-block detection trickier wrt. null ops | ||||
| 104 | # - fixed various prototype problems in pp_entersub | ||||
| 105 | # - added support for sub prototypes that never get GVs | ||||
| 106 | # - added unquoting for special filehandle first arg in truncate | ||||
| 107 | # - print doubled rv2gv (a bug) as '*{*GV}' instead of illegal '**GV' | ||||
| 108 | # - added semicolons at the ends of blocks | ||||
| 109 | # - added -l '#line' declaration option -- fixes cmd/subval.t 27,28 | ||||
| 110 | # Changes between 0.56 and 0.561: | ||||
| 111 | # - fixed multiply-declared my var in pp_truncate (thanks to Sarathy) | ||||
| 112 | # - used new B.pm symbolic constants (done by Nick Ing-Simmons) | ||||
| 113 | # Changes between 0.561 and 0.57: | ||||
| 114 | # - stylistic changes to symbolic constant stuff | ||||
| 115 | # - handled scope in s///e replacement code | ||||
| 116 | # - added unquote option for expanding "" into concats, etc. | ||||
| 117 | # - split method and proto parts of pp_entersub into separate functions | ||||
| 118 | # - various minor cleanups | ||||
| 119 | # Changes after 0.57: | ||||
| 120 | # - added parens in \&foo (patch by Albert Dvornik) | ||||
| 121 | # Changes between 0.57 and 0.58: | ||||
| 122 | # - fixed '0' statements that weren't being printed | ||||
| 123 | # - added methods for use from other programs | ||||
| 124 | # (based on patches from James Duncan and Hugo van der Sanden) | ||||
| 125 | # - added -si and -sT to control indenting (also based on a patch from Hugo) | ||||
| 126 | # - added -sv to print something else instead of '???' | ||||
| 127 | # - preliminary version of utf8 tr/// handling | ||||
| 128 | # Changes after 0.58: | ||||
| 129 | # - uses of $op->ppaddr changed to new $op->name (done by Sarathy) | ||||
| 130 | # - added support for Hugo's new OP_SETSTATE (like nextstate) | ||||
| 131 | # Changes between 0.58 and 0.59 | ||||
| 132 | # - added support for Chip's OP_METHOD_NAMED | ||||
| 133 | # - added support for Ilya's OPpTARGET_MY optimization | ||||
| 134 | # - elided arrows before '()' subscripts when possible | ||||
| 135 | # Changes between 0.59 and 0.60 | ||||
| 136 | # - support for method attributes was added | ||||
| 137 | # - some warnings fixed | ||||
| 138 | # - separate recognition of constant subs | ||||
| 139 | # - rewrote continue block handling, now recognizing for loops | ||||
| 140 | # - added more control of expanding control structures | ||||
| 141 | # Changes between 0.60 and 0.61 (mostly by Robin Houston) | ||||
| 142 | # - many bug-fixes | ||||
| 143 | # - support for pragmas and 'use' | ||||
| 144 | # - support for the little-used $[ variable | ||||
| 145 | # - support for __DATA__ sections | ||||
| 146 | # - UTF8 support | ||||
| 147 | # - BEGIN, CHECK, INIT and END blocks | ||||
| 148 | # - scoping of subroutine declarations fixed | ||||
| 149 | # - compile-time output from the input program can be suppressed, so that the | ||||
| 150 | # output is just the deparsed code. (a change to O.pm in fact) | ||||
| 151 | # - our() declarations | ||||
| 152 | # - *all* the known bugs are now listed in the BUGS section | ||||
| 153 | # - comprehensive test mechanism (TEST -deparse) | ||||
| 154 | # Changes between 0.62 and 0.63 (mostly by Rafael Garcia-Suarez) | ||||
| 155 | # - bug-fixes | ||||
| 156 | # - new switch -P | ||||
| 157 | # - support for command-line switches (-l, -0, etc.) | ||||
| 158 | # Changes between 0.63 and 0.64 | ||||
| 159 | # - support for //, CHECK blocks, and assertions | ||||
| 160 | # - improved handling of foreach loops and lexicals | ||||
| 161 | # - option to use Data::Dumper for constants | ||||
| 162 | # - more bug fixes | ||||
| 163 | # - discovered lots more bugs not yet fixed | ||||
| 164 | # | ||||
| 165 | # ... | ||||
| 166 | # | ||||
| 167 | # Changes between 0.72 and 0.73 | ||||
| 168 | # - support new switch constructs | ||||
| 169 | |||||
| 170 | # Todo: | ||||
| 171 | # (See also BUGS section at the end of this file) | ||||
| 172 | # | ||||
| 173 | # - finish tr/// changes | ||||
| 174 | # - add option for even more parens (generalize \&foo change) | ||||
| 175 | # - left/right context | ||||
| 176 | # - copy comments (look at real text with $^P?) | ||||
| 177 | # - avoid semis in one-statement blocks | ||||
| 178 | # - associativity of &&=, ||=, ?: | ||||
| 179 | # - ',' => '=>' (auto-unquote?) | ||||
| 180 | # - break long lines ("\r" as discretionary break?) | ||||
| 181 | # - configurable syntax highlighting: ANSI color, HTML, TeX, etc. | ||||
| 182 | # - more style options: brace style, hex vs. octal, quotes, ... | ||||
| 183 | # - print big ints as hex/octal instead of decimal (heuristic?) | ||||
| 184 | # - handle 'my $x if 0'? | ||||
| 185 | # - version using op_next instead of op_first/sibling? | ||||
| 186 | # - avoid string copies (pass arrays, one big join?) | ||||
| 187 | # - here-docs? | ||||
| 188 | |||||
| 189 | # Current test.deparse failures | ||||
| 190 | # comp/hints 6 - location of BEGIN blocks wrt. block openings | ||||
| 191 | # run/switchI 1 - missing -I switches entirely | ||||
| 192 | # perl -Ifoo -e 'print @INC' | ||||
| 193 | # op/caller 2 - warning mask propagates backwards before warnings::register | ||||
| 194 | # 'use warnings; BEGIN {${^WARNING_BITS} eq "U"x12;} use warnings::register' | ||||
| 195 | # op/getpid 2 - can't assign to shared my() declaration (threads only) | ||||
| 196 | # 'my $x : shared = 5' | ||||
| 197 | # op/override 7 - parens on overridden require change v-string interpretation | ||||
| 198 | # 'BEGIN{*CORE::GLOBAL::require=sub {}} require v5.6' | ||||
| 199 | # c.f. 'BEGIN { *f = sub {0} }; f 2' | ||||
| 200 | # op/pat 774 - losing Unicode-ness of Latin1-only strings | ||||
| 201 | # 'use charnames ":short"; $x="\N{latin:a with acute}"' | ||||
| 202 | # op/recurse 12 - missing parens on recursive call makes it look like method | ||||
| 203 | # 'sub f { f($x) }' | ||||
| 204 | # op/subst 90 - inconsistent handling of utf8 under "use utf8" | ||||
| 205 | # op/taint 29 - "use re 'taint'" deparsed in the wrong place wrt. block open | ||||
| 206 | # op/tiehandle compile - "use strict" deparsed in the wrong place | ||||
| 207 | # uni/tr_ several | ||||
| 208 | # ext/B/t/xref 11 - line numbers when we add newlines to one-line subs | ||||
| 209 | # ext/Data/Dumper/t/dumper compile | ||||
| 210 | # ext/DB_file/several | ||||
| 211 | # ext/Encode/several | ||||
| 212 | # ext/Ernno/Errno warnings | ||||
| 213 | # ext/IO/lib/IO/t/io_sel 23 | ||||
| 214 | # ext/PerlIO/t/encoding compile | ||||
| 215 | # ext/POSIX/t/posix 6 | ||||
| 216 | # ext/Socket/Socket 8 | ||||
| 217 | # ext/Storable/t/croak compile | ||||
| 218 | # lib/Attribute/Handlers/t/multi compile | ||||
| 219 | # lib/bignum/ several | ||||
| 220 | # lib/charnames 35 | ||||
| 221 | # lib/constant 32 | ||||
| 222 | # lib/English 40 | ||||
| 223 | # lib/ExtUtils/t/bytes 4 | ||||
| 224 | # lib/File/DosGlob compile | ||||
| 225 | # lib/Filter/Simple/t/data 1 | ||||
| 226 | # lib/Math/BigInt/t/constant 1 | ||||
| 227 | # lib/Net/t/config Deparse-warning | ||||
| 228 | # lib/overload compile | ||||
| 229 | # lib/Switch/ several | ||||
| 230 | # lib/Symbol 4 | ||||
| 231 | # lib/Test/Simple several | ||||
| 232 | # lib/Term/Complete | ||||
| 233 | # lib/Tie/File/t/29_downcopy 5 | ||||
| 234 | # lib/vars 22 | ||||
| 235 | |||||
| 236 | # Object fields: | ||||
| 237 | # | ||||
| 238 | # in_coderef2text: | ||||
| 239 | # True when deparsing via $deparse->coderef2text; false when deparsing the | ||||
| 240 | # main program. | ||||
| 241 | # | ||||
| 242 | # avoid_local: | ||||
| 243 | # (local($a), local($b)) and local($a, $b) have the same internal | ||||
| 244 | # representation but the short form looks better. We notice we can | ||||
| 245 | # use a large-scale local when checking the list, but need to prevent | ||||
| 246 | # individual locals too. This hash holds the addresses of OPs that | ||||
| 247 | # have already had their local-ness accounted for. The same thing | ||||
| 248 | # is done with my(). | ||||
| 249 | # | ||||
| 250 | # curcv: | ||||
| 251 | # CV for current sub (or main program) being deparsed | ||||
| 252 | # | ||||
| 253 | # curcvlex: | ||||
| 254 | # Cached hash of lexical variables for curcv: keys are | ||||
| 255 | # names prefixed with "m" or "o" (representing my/our), and | ||||
| 256 | # each value is an array with two elements indicating the cop_seq | ||||
| 257 | # of scopes in which a var of that name is valid and a third ele- | ||||
| 258 | # ment referencing the pad name. | ||||
| 259 | # | ||||
| 260 | # curcop: | ||||
| 261 | # COP for statement being deparsed | ||||
| 262 | # | ||||
| 263 | # curstash: | ||||
| 264 | # name of the current package for deparsed code | ||||
| 265 | # | ||||
| 266 | # subs_todo: | ||||
| 267 | # array of [cop_seq, CV, is_format?, name] for subs and formats we still | ||||
| 268 | # want to deparse. The fourth element is a pad name thingy for lexical | ||||
| 269 | # subs or a string for special blocks. For other subs, it is undef. For | ||||
| 270 | # lexical subs, CV may be undef, indicating a stub declaration. | ||||
| 271 | # | ||||
| 272 | # protos_todo: | ||||
| 273 | # as above, but [name, prototype] for subs that never got a GV | ||||
| 274 | # | ||||
| 275 | # subs_done, forms_done: | ||||
| 276 | # keys are addresses of GVs for subs and formats we've already | ||||
| 277 | # deparsed (or at least put into subs_todo) | ||||
| 278 | # | ||||
| 279 | # subs_declared | ||||
| 280 | # keys are names of subs for which we've printed declarations. | ||||
| 281 | # That means we can omit parentheses from the arguments. It also means we | ||||
| 282 | # need to put CORE:: on core functions of the same name. | ||||
| 283 | # | ||||
| 284 | # in_subst_repl | ||||
| 285 | # True when deparsing the replacement part of a substitution. | ||||
| 286 | # | ||||
| 287 | # in_refgen | ||||
| 288 | # True when deparsing the argument to \. | ||||
| 289 | # | ||||
| 290 | # parens: -p | ||||
| 291 | # linenums: -l | ||||
| 292 | # unquote: -q | ||||
| 293 | # cuddle: ' ' or '\n', depending on -sC | ||||
| 294 | # indent_size: -si | ||||
| 295 | # use_tabs: -sT | ||||
| 296 | # ex_const: -sv | ||||
| 297 | |||||
| 298 | # A little explanation of how precedence contexts and associativity | ||||
| 299 | # work: | ||||
| 300 | # | ||||
| 301 | # deparse() calls each per-op subroutine with an argument $cx (short | ||||
| 302 | # for context, but not the same as the cx* in the perl core), which is | ||||
| 303 | # a number describing the op's parents in terms of precedence, whether | ||||
| 304 | # they're inside an expression or at statement level, etc. (see | ||||
| 305 | # chart below). When ops with children call deparse on them, they pass | ||||
| 306 | # along their precedence. Fractional values are used to implement | ||||
| 307 | # associativity ('($x + $y) + $z' => '$x + $y + $y') and related | ||||
| 308 | # parentheses hacks. The major disadvantage of this scheme is that | ||||
| 309 | # it doesn't know about right sides and left sides, so say if you | ||||
| 310 | # assign a listop to a variable, it can't tell it's allowed to leave | ||||
| 311 | # the parens off the listop. | ||||
| 312 | |||||
| 313 | # Precedences: | ||||
| 314 | # 26 [TODO] inside interpolation context ("") | ||||
| 315 | # 25 left terms and list operators (leftward) | ||||
| 316 | # 24 left -> | ||||
| 317 | # 23 nonassoc ++ -- | ||||
| 318 | # 22 right ** | ||||
| 319 | # 21 right ! ~ \ and unary + and - | ||||
| 320 | # 20 left =~ !~ | ||||
| 321 | # 19 left * / % x | ||||
| 322 | # 18 left + - . | ||||
| 323 | # 17 left << >> | ||||
| 324 | # 16 nonassoc named unary operators | ||||
| 325 | # 15 nonassoc < > <= >= lt gt le ge | ||||
| 326 | # 14 nonassoc == != <=> eq ne cmp | ||||
| 327 | # 13 left & | ||||
| 328 | # 12 left | ^ | ||||
| 329 | # 11 left && | ||||
| 330 | # 10 left || | ||||
| 331 | # 9 nonassoc .. ... | ||||
| 332 | # 8 right ?: | ||||
| 333 | # 7 right = += -= *= etc. | ||||
| 334 | # 6 left , => | ||||
| 335 | # 5 nonassoc list operators (rightward) | ||||
| 336 | # 4 right not | ||||
| 337 | # 3 left and | ||||
| 338 | # 2 left or xor | ||||
| 339 | # 1 statement modifiers | ||||
| 340 | # 0.5 statements, but still print scopes as do { ... } | ||||
| 341 | # 0 statement level | ||||
| 342 | # -1 format body | ||||
| 343 | |||||
| 344 | # Nonprinting characters with special meaning: | ||||
| 345 | # \cS - steal parens (see maybe_parens_unop) | ||||
| 346 | # \n - newline and indent | ||||
| 347 | # \t - increase indent | ||||
| 348 | # \b - decrease indent ('outdent') | ||||
| 349 | # \f - flush left (no indent) | ||||
| 350 | # \cK - kill following semicolon, if any | ||||
| 351 | |||||
| 352 | # Semicolon handling: | ||||
| 353 | # - Individual statements are not deparsed with trailing semicolons. | ||||
| 354 | # (If necessary, \cK is tacked on to the end.) | ||||
| 355 | # - Whatever code joins statements together or emits them (lineseq, | ||||
| 356 | # scopeop, deparse_root) is responsible for adding semicolons where | ||||
| 357 | # necessary. | ||||
| 358 | # - use statements are deparsed with trailing semicolons because they are | ||||
| 359 | # immediately concatenated with the following statement. | ||||
| 360 | # - indent() removes semicolons wherever it sees \cK. | ||||
| 361 | |||||
| 362 | |||||
| 363 | 1 | 3µs | # spent 204µs (187+17) within B::Deparse::BEGIN@363 which was called:
# once (187µs+17µs) by YAML::XS::BEGIN@57 at line 366 | ||
| 364 | nextstate dbstate rv2av rv2hv helem custom ]) { | ||||
| 365 | 14 | 200µs | 14 | 17µs | eval "sub OP_\U$_ () { " . opnumber($_) . "}" # spent 17µs making 14 calls to B::opnumber, avg 1µs/call |
| 366 | 1 | 1.03ms | 1 | 204µs | }} # spent 204µs making 1 call to B::Deparse::BEGIN@363 |
| 367 | |||||
| 368 | # _pessimise_walk(): recursively walk the optree of a sub, | ||||
| 369 | # possibly undoing optimisations along the way. | ||||
| 370 | |||||
| 371 | sub _pessimise_walk { | ||||
| 372 | my ($self, $startop) = @_; | ||||
| 373 | |||||
| 374 | return unless $$startop; | ||||
| 375 | my ($op, $prevop); | ||||
| 376 | for ($op = $startop; $$op; $prevop = $op, $op = $op->sibling) { | ||||
| 377 | my $ppname = $op->name; | ||||
| 378 | |||||
| 379 | # pessimisations start here | ||||
| 380 | |||||
| 381 | if ($ppname eq "padrange") { | ||||
| 382 | # remove PADRANGE: | ||||
| 383 | # the original optimisation either (1) changed this: | ||||
| 384 | # pushmark -> (various pad and list and null ops) -> the_rest | ||||
| 385 | # or (2), for the = @_ case, changed this: | ||||
| 386 | # pushmark -> gv[_] -> rv2av -> (pad stuff) -> the_rest | ||||
| 387 | # into this: | ||||
| 388 | # padrange ----------------------------------------> the_rest | ||||
| 389 | # so we just need to convert the padrange back into a | ||||
| 390 | # pushmark, and in case (1), set its op_next to op_sibling, | ||||
| 391 | # which is the head of the original chain of optimised-away | ||||
| 392 | # pad ops, or for (2), set it to sibling->first, which is | ||||
| 393 | # the original gv[_]. | ||||
| 394 | |||||
| 395 | $B::overlay->{$$op} = { | ||||
| 396 | type => OP_PUSHMARK, | ||||
| 397 | name => 'pushmark', | ||||
| 398 | private => ($op->private & OPpLVAL_INTRO), | ||||
| 399 | }; | ||||
| 400 | } | ||||
| 401 | |||||
| 402 | # pessimisations end here | ||||
| 403 | |||||
| 404 | if (class($op) eq 'PMOP' | ||||
| 405 | && ref($op->pmreplroot) | ||||
| 406 | && ${$op->pmreplroot} | ||||
| 407 | && $op->pmreplroot->isa( 'B::OP' )) | ||||
| 408 | { | ||||
| 409 | $self-> _pessimise_walk($op->pmreplroot); | ||||
| 410 | } | ||||
| 411 | |||||
| 412 | if ($op->flags & OPf_KIDS) { | ||||
| 413 | $self-> _pessimise_walk($op->first); | ||||
| 414 | } | ||||
| 415 | |||||
| 416 | } | ||||
| 417 | } | ||||
| 418 | |||||
| 419 | |||||
| 420 | # _pessimise_walk_exe(): recursively walk the op_next chain of a sub, | ||||
| 421 | # possibly undoing optimisations along the way. | ||||
| 422 | |||||
| 423 | sub _pessimise_walk_exe { | ||||
| 424 | my ($self, $startop, $visited) = @_; | ||||
| 425 | |||||
| 426 | return unless $$startop; | ||||
| 427 | return if $visited->{$$startop}; | ||||
| 428 | my ($op, $prevop); | ||||
| 429 | for ($op = $startop; $$op; $prevop = $op, $op = $op->next) { | ||||
| 430 | last if $visited->{$$op}; | ||||
| 431 | $visited->{$$op} = 1; | ||||
| 432 | my $ppname = $op->name; | ||||
| 433 | if ($ppname =~ | ||||
| 434 | /^((and|d?or)(assign)?|(map|grep)while|range|cond_expr|once)$/ | ||||
| 435 | # entertry is also a logop, but its op_other invariably points | ||||
| 436 | # into the same chain as the main execution path, so we skip it | ||||
| 437 | ) { | ||||
| 438 | $self->_pessimise_walk_exe($op->other, $visited); | ||||
| 439 | } | ||||
| 440 | elsif ($ppname eq "subst") { | ||||
| 441 | $self->_pessimise_walk_exe($op->pmreplstart, $visited); | ||||
| 442 | } | ||||
| 443 | elsif ($ppname =~ /^(enter(loop|iter))$/) { | ||||
| 444 | # redoop and nextop will already be covered by the main block | ||||
| 445 | # of the loop | ||||
| 446 | $self->_pessimise_walk_exe($op->lastop, $visited); | ||||
| 447 | } | ||||
| 448 | |||||
| 449 | # pessimisations start here | ||||
| 450 | } | ||||
| 451 | } | ||||
| 452 | |||||
| 453 | # Go through an optree and "remove" some optimisations by using an | ||||
| 454 | # overlay to selectively modify or un-null some ops. Deparsing in the | ||||
| 455 | # absence of those optimisations is then easier. | ||||
| 456 | # | ||||
| 457 | # Note that older optimisations are not removed, as Deparse was already | ||||
| 458 | # written to recognise them before the pessimise/overlay system was added. | ||||
| 459 | |||||
| 460 | sub pessimise { | ||||
| 461 | my ($self, $root, $start) = @_; | ||||
| 462 | |||||
| 463 | # walk tree in root-to-branch order | ||||
| 464 | $self->_pessimise_walk($root); | ||||
| 465 | |||||
| 466 | my %visited; | ||||
| 467 | # walk tree in execution order | ||||
| 468 | $self->_pessimise_walk_exe($start, \%visited); | ||||
| 469 | } | ||||
| 470 | |||||
| 471 | |||||
| 472 | sub null { | ||||
| 473 | my $op = shift; | ||||
| 474 | return class($op) eq "NULL"; | ||||
| 475 | } | ||||
| 476 | |||||
| 477 | sub todo { | ||||
| 478 | my $self = shift; | ||||
| 479 | my($cv, $is_form, $name) = @_; | ||||
| 480 | my $cvfile = $cv->FILE//''; | ||||
| 481 | return unless ($cvfile eq $0 || exists $self->{files}{$cvfile}); | ||||
| 482 | my $seq; | ||||
| 483 | if ($cv->OUTSIDE_SEQ) { | ||||
| 484 | $seq = $cv->OUTSIDE_SEQ; | ||||
| 485 | } elsif (!null($cv->START) and is_state($cv->START)) { | ||||
| 486 | $seq = $cv->START->cop_seq; | ||||
| 487 | } else { | ||||
| 488 | $seq = 0; | ||||
| 489 | } | ||||
| 490 | push @{$self->{'subs_todo'}}, [$seq, $cv, $is_form, $name]; | ||||
| 491 | } | ||||
| 492 | |||||
| 493 | sub next_todo { | ||||
| 494 | my $self = shift; | ||||
| 495 | my $ent = shift @{$self->{'subs_todo'}}; | ||||
| 496 | my $cv = $ent->[1]; | ||||
| 497 | if (ref $ent->[3]) { # lexical sub | ||||
| 498 | my @text; | ||||
| 499 | |||||
| 500 | # At this point, we may not yet have deparsed the hints that allow | ||||
| 501 | # lexical subroutines to be recognized. So adjust the current | ||||
| 502 | # hints and deparse them. | ||||
| 503 | # When lex subs cease being experimental, we should be able to | ||||
| 504 | # remove this code. | ||||
| 505 | { | ||||
| 506 | local $^H = $self->{'hints'}; | ||||
| 507 | local %^H = %{ $self->{'hinthash'} || {} }; | ||||
| 508 | local ${^WARNING_BITS} = $self->{'warnings'}; | ||||
| 509 | feature->import("lexical_subs"); | ||||
| 510 | warnings->unimport("experimental::lexical_subs"); | ||||
| 511 | # Here we depend on the fact that individual features | ||||
| 512 | # will always set the feature bundle to ‘custom’ | ||||
| 513 | # (== $feature::hint_mask). If we had another specific bundle | ||||
| 514 | # enabled previously, normalise it. | ||||
| 515 | if (($self->{'hints'} & $feature::hint_mask) | ||||
| 516 | != $feature::hint_mask) | ||||
| 517 | { | ||||
| 518 | if ($self->{'hinthash'}) { | ||||
| 519 | delete $self->{'hinthash'}{$_} | ||||
| 520 | for grep /^feature_/, keys %{$self->{'hinthash'}}; | ||||
| 521 | } | ||||
| 522 | else { $self->{'hinthash'} = {} } | ||||
| 523 | $self->{'hinthash'} | ||||
| 524 | = _features_from_bundle(@$self{'hints','hinthash'}); | ||||
| 525 | } | ||||
| 526 | push @text, $self->declare_hinthash($self->{'hinthash'}, \%^H, | ||||
| 527 | $self->{indent_size}, $^H); | ||||
| 528 | push @text, $self->declare_warnings($self->{'warnings'}, | ||||
| 529 | ${^WARNING_BITS}) | ||||
| 530 | unless ($self->{'warnings'} // 'u') | ||||
| 531 | eq (${^WARNING_BITS } // 'u'); | ||||
| 532 | $self->{'warnings'} = ${^WARNING_BITS}; | ||||
| 533 | $self->{'hints'} = $^H; | ||||
| 534 | $self->{'hinthash'} = {%^H}; | ||||
| 535 | } | ||||
| 536 | |||||
| 537 | # Now emit the sub itself. | ||||
| 538 | my $padname = $ent->[3]; | ||||
| 539 | my $flags = $padname->FLAGS; | ||||
| 540 | push @text, | ||||
| 541 | !$cv || $ent->[0] <= $padname->COP_SEQ_RANGE_LOW | ||||
| 542 | ? $self->keyword($flags & SVpad_OUR | ||||
| 543 | ? "our" | ||||
| 544 | : $flags & SVpad_STATE | ||||
| 545 | ? "state" | ||||
| 546 | : "my") . " " | ||||
| 547 | : ""; | ||||
| 548 | # XXX We would do $self->keyword("sub"), but ‘my CORE::sub’ | ||||
| 549 | # doesn’t work and ‘my sub’ ignores a &sub in scope. I.e., | ||||
| 550 | # we have a core bug here. | ||||
| 551 | push @text, "sub " . substr $padname->PVX, 1; | ||||
| 552 | if ($cv) { | ||||
| 553 | # my sub foo { } | ||||
| 554 | push @text, " " . $self->deparse_sub($cv); | ||||
| 555 | $text[-1] =~ s/ ;$/;/; | ||||
| 556 | } | ||||
| 557 | else { | ||||
| 558 | # my sub foo; | ||||
| 559 | push @text, ";\n"; | ||||
| 560 | } | ||||
| 561 | return join "", @text; | ||||
| 562 | } | ||||
| 563 | my $gv = $cv->GV; | ||||
| 564 | my $name = $ent->[3] // $self->gv_name($gv); | ||||
| 565 | if ($ent->[2]) { | ||||
| 566 | return $self->keyword("format") . " $name =\n" | ||||
| 567 | . $self->deparse_format($ent->[1]). "\n"; | ||||
| 568 | } else { | ||||
| 569 | my $use_dec; | ||||
| 570 | if ($name eq "BEGIN") { | ||||
| 571 | $use_dec = $self->begin_is_use($cv); | ||||
| 572 | if (defined ($use_dec) and $self->{'expand'} < 5) { | ||||
| 573 | return () if 0 == length($use_dec); | ||||
| 574 | $use_dec =~ s/^(use|no)\b/$self->keyword($1)/e; | ||||
| 575 | } | ||||
| 576 | } | ||||
| 577 | my $l = ''; | ||||
| 578 | if ($self->{'linenums'}) { | ||||
| 579 | my $line = $gv->LINE; | ||||
| 580 | my $file = $gv->FILE; | ||||
| 581 | $l = "\n\f#line $line \"$file\"\n"; | ||||
| 582 | } | ||||
| 583 | my $p = ''; | ||||
| 584 | my $stash; | ||||
| 585 | if (class($cv->STASH) ne "SPECIAL") { | ||||
| 586 | $stash = $cv->STASH->NAME; | ||||
| 587 | if ($stash ne $self->{'curstash'}) { | ||||
| 588 | $p = $self->keyword("package") . " $stash;\n"; | ||||
| 589 | $name = "$self->{'curstash'}::$name" unless $name =~ /::/; | ||||
| 590 | $self->{'curstash'} = $stash; | ||||
| 591 | } | ||||
| 592 | } | ||||
| 593 | if ($use_dec) { | ||||
| 594 | return "$p$l$use_dec"; | ||||
| 595 | } | ||||
| 596 | if ( $name !~ /::/ and $self->lex_in_scope("&$name") | ||||
| 597 | || $self->lex_in_scope("&$name", 1) ) | ||||
| 598 | { | ||||
| 599 | $name = "$self->{'curstash'}::$name"; | ||||
| 600 | } elsif (defined $stash) { | ||||
| 601 | $name =~ s/^\Q$stash\E::(?!\z|.*::)//; | ||||
| 602 | } | ||||
| 603 | my $ret = "${p}${l}" . $self->keyword("sub") . " $name " | ||||
| 604 | . $self->deparse_sub($cv); | ||||
| 605 | $self->{'subs_declared'}{$name} = 1; | ||||
| 606 | return $ret; | ||||
| 607 | } | ||||
| 608 | } | ||||
| 609 | |||||
| 610 | # Return a "use" declaration for this BEGIN block, if appropriate | ||||
| 611 | sub begin_is_use { | ||||
| 612 | my ($self, $cv) = @_; | ||||
| 613 | my $root = $cv->ROOT; | ||||
| 614 | local @$self{qw'curcv curcvlex'} = ($cv); | ||||
| 615 | local $B::overlay = {}; | ||||
| 616 | $self->pessimise($root, $cv->START); | ||||
| 617 | #require B::Debug; | ||||
| 618 | #B::walkoptree($cv->ROOT, "debug"); | ||||
| 619 | my $lineseq = $root->first; | ||||
| 620 | return if $lineseq->name ne "lineseq"; | ||||
| 621 | |||||
| 622 | my $req_op = $lineseq->first->sibling; | ||||
| 623 | return if $req_op->name ne "require"; | ||||
| 624 | |||||
| 625 | my $module; | ||||
| 626 | if ($req_op->first->private & OPpCONST_BARE) { | ||||
| 627 | # Actually it should always be a bareword | ||||
| 628 | $module = $self->const_sv($req_op->first)->PV; | ||||
| 629 | $module =~ s[/][::]g; | ||||
| 630 | $module =~ s/.pm$//; | ||||
| 631 | } | ||||
| 632 | else { | ||||
| 633 | $module = $self->const($self->const_sv($req_op->first), 6); | ||||
| 634 | } | ||||
| 635 | |||||
| 636 | my $version; | ||||
| 637 | my $version_op = $req_op->sibling; | ||||
| 638 | return if class($version_op) eq "NULL"; | ||||
| 639 | if ($version_op->name eq "lineseq") { | ||||
| 640 | # We have a version parameter; skip nextstate & pushmark | ||||
| 641 | my $constop = $version_op->first->next->next; | ||||
| 642 | |||||
| 643 | return unless $self->const_sv($constop)->PV eq $module; | ||||
| 644 | $constop = $constop->sibling; | ||||
| 645 | $version = $self->const_sv($constop); | ||||
| 646 | if (class($version) eq "IV") { | ||||
| 647 | $version = $version->int_value; | ||||
| 648 | } elsif (class($version) eq "NV") { | ||||
| 649 | $version = $version->NV; | ||||
| 650 | } elsif (class($version) ne "PVMG") { | ||||
| 651 | # Includes PVIV and PVNV | ||||
| 652 | $version = $version->PV; | ||||
| 653 | } else { | ||||
| 654 | # version specified as a v-string | ||||
| 655 | $version = 'v'.join '.', map ord, split //, $version->PV; | ||||
| 656 | } | ||||
| 657 | $constop = $constop->sibling; | ||||
| 658 | return if $constop->name ne "method_named"; | ||||
| 659 | return if $self->meth_sv($constop)->PV ne "VERSION"; | ||||
| 660 | } | ||||
| 661 | |||||
| 662 | $lineseq = $version_op->sibling; | ||||
| 663 | return if $lineseq->name ne "lineseq"; | ||||
| 664 | my $entersub = $lineseq->first->sibling; | ||||
| 665 | if ($entersub->name eq "stub") { | ||||
| 666 | return "use $module $version ();\n" if defined $version; | ||||
| 667 | return "use $module ();\n"; | ||||
| 668 | } | ||||
| 669 | return if $entersub->name ne "entersub"; | ||||
| 670 | |||||
| 671 | # See if there are import arguments | ||||
| 672 | my $args = ''; | ||||
| 673 | |||||
| 674 | my $svop = $entersub->first->sibling; # Skip over pushmark | ||||
| 675 | return unless $self->const_sv($svop)->PV eq $module; | ||||
| 676 | |||||
| 677 | # Pull out the arguments | ||||
| 678 | for ($svop=$svop->sibling; index($svop->name, "method_") != 0; | ||||
| 679 | $svop = $svop->sibling) { | ||||
| 680 | $args .= ", " if length($args); | ||||
| 681 | $args .= $self->deparse($svop, 6); | ||||
| 682 | } | ||||
| 683 | |||||
| 684 | my $use = 'use'; | ||||
| 685 | my $method_named = $svop; | ||||
| 686 | return if $method_named->name ne "method_named"; | ||||
| 687 | my $method_name = $self->meth_sv($method_named)->PV; | ||||
| 688 | |||||
| 689 | if ($method_name eq "unimport") { | ||||
| 690 | $use = 'no'; | ||||
| 691 | } | ||||
| 692 | |||||
| 693 | # Certain pragmas are dealt with using hint bits, | ||||
| 694 | # so we ignore them here | ||||
| 695 | if ($module eq 'strict' || $module eq 'integer' | ||||
| 696 | || $module eq 'bytes' || $module eq 'warnings' | ||||
| 697 | || $module eq 'feature') { | ||||
| 698 | return ""; | ||||
| 699 | } | ||||
| 700 | |||||
| 701 | if (defined $version && length $args) { | ||||
| 702 | return "$use $module $version ($args);\n"; | ||||
| 703 | } elsif (defined $version) { | ||||
| 704 | return "$use $module $version;\n"; | ||||
| 705 | } elsif (length $args) { | ||||
| 706 | return "$use $module ($args);\n"; | ||||
| 707 | } else { | ||||
| 708 | return "$use $module;\n"; | ||||
| 709 | } | ||||
| 710 | } | ||||
| 711 | |||||
| 712 | sub stash_subs { | ||||
| 713 | my ($self, $pack, $seen) = @_; | ||||
| 714 | my (@ret, $stash); | ||||
| 715 | if (!defined $pack) { | ||||
| 716 | $pack = ''; | ||||
| 717 | $stash = \%::; | ||||
| 718 | } | ||||
| 719 | else { | ||||
| 720 | $pack =~ s/(::)?$/::/; | ||||
| 721 | 2 | 508µs | 2 | 26µs | # spent 16µs (6+10) within B::Deparse::BEGIN@721 which was called:
# once (6µs+10µs) by YAML::XS::BEGIN@57 at line 721 # spent 16µs making 1 call to B::Deparse::BEGIN@721
# spent 10µs making 1 call to strict::unimport |
| 722 | $stash = \%{"main::$pack"}; | ||||
| 723 | } | ||||
| 724 | return | ||||
| 725 | if ($seen ||= {})->{ | ||||
| 726 | $INC{"overload.pm"} ? overload::StrVal($stash) : $stash | ||||
| 727 | }++; | ||||
| 728 | my %stash = svref_2object($stash)->ARRAY; | ||||
| 729 | while (my ($key, $val) = each %stash) { | ||||
| 730 | my $flags = $val->FLAGS; | ||||
| 731 | if ($flags & SVf_ROK) { | ||||
| 732 | # A reference. Dump this if it is a reference to a CV. If it | ||||
| 733 | # is a constant acting as a proxy for a full subroutine, then | ||||
| 734 | # we may or may not have to dump it. If some form of perl- | ||||
| 735 | # space visible code must have created it, be it a use | ||||
| 736 | # statement, or some direct symbol-table manipulation code that | ||||
| 737 | # we will deparse, then we don’t want to dump it. If it is the | ||||
| 738 | # result of a declaration like sub f () { 42 } then we *do* | ||||
| 739 | # want to dump it. The only way to distinguish these seems | ||||
| 740 | # to be the SVs_PADTMP flag on the constant, which is admit- | ||||
| 741 | # tedly a hack. | ||||
| 742 | my $class = class(my $referent = $val->RV); | ||||
| 743 | if ($class eq "CV") { | ||||
| 744 | $self->todo($referent, 0); | ||||
| 745 | } elsif ( | ||||
| 746 | $class !~ /^(AV|HV|CV|FM|IO|SPECIAL)\z/ | ||||
| 747 | # A more robust way to write that would be this, but B does | ||||
| 748 | # not provide the SVt_ constants: | ||||
| 749 | # ($referent->FLAGS & B::SVTYPEMASK) < B::SVt_PVAV | ||||
| 750 | and $referent->FLAGS & SVs_PADTMP | ||||
| 751 | ) { | ||||
| 752 | push @{$self->{'protos_todo'}}, [$pack . $key, $val]; | ||||
| 753 | } | ||||
| 754 | } elsif ($flags & (SVf_POK|SVf_IOK)) { | ||||
| 755 | # Just a prototype. As an ugly but fairly effective way | ||||
| 756 | # to find out if it belongs here is to see if the AUTOLOAD | ||||
| 757 | # (if any) for the stash was defined in one of our files. | ||||
| 758 | my $A = $stash{"AUTOLOAD"}; | ||||
| 759 | if (defined ($A) && class($A) eq "GV" && defined($A->CV) | ||||
| 760 | && class($A->CV) eq "CV") { | ||||
| 761 | my $AF = $A->FILE; | ||||
| 762 | next unless $AF eq $0 || exists $self->{'files'}{$AF}; | ||||
| 763 | } | ||||
| 764 | push @{$self->{'protos_todo'}}, | ||||
| 765 | [$pack . $key, $flags & SVf_POK ? $val->PV: undef]; | ||||
| 766 | } elsif (class($val) eq "GV") { | ||||
| 767 | if (class(my $cv = $val->CV) ne "SPECIAL") { | ||||
| 768 | next if $self->{'subs_done'}{$$val}++; | ||||
| 769 | next if $$val != ${$cv->GV}; # Ignore imposters | ||||
| 770 | $self->todo($cv, 0); | ||||
| 771 | } | ||||
| 772 | if (class(my $cv = $val->FORM) ne "SPECIAL") { | ||||
| 773 | next if $self->{'forms_done'}{$$val}++; | ||||
| 774 | next if $$val != ${$cv->GV}; # Ignore imposters | ||||
| 775 | $self->todo($cv, 1); | ||||
| 776 | } | ||||
| 777 | if (class($val->HV) ne "SPECIAL" && $key =~ /::$/) { | ||||
| 778 | $self->stash_subs($pack . $key, $seen); | ||||
| 779 | } | ||||
| 780 | } | ||||
| 781 | } | ||||
| 782 | } | ||||
| 783 | |||||
| 784 | sub print_protos { | ||||
| 785 | my $self = shift; | ||||
| 786 | my $ar; | ||||
| 787 | my @ret; | ||||
| 788 | foreach $ar (@{$self->{'protos_todo'}}) { | ||||
| 789 | my $body = defined $ar->[1] | ||||
| 790 | ? ref $ar->[1] | ||||
| 791 | ? " () {\n " . $self->const($ar->[1]->RV,0) . ";\n}" | ||||
| 792 | : " (". $ar->[1] . ");" | ||||
| 793 | : ";"; | ||||
| 794 | push @ret, "sub " . $ar->[0] . "$body\n"; | ||||
| 795 | } | ||||
| 796 | delete $self->{'protos_todo'}; | ||||
| 797 | return @ret; | ||||
| 798 | } | ||||
| 799 | |||||
| 800 | sub style_opts { | ||||
| 801 | my $self = shift; | ||||
| 802 | my $opts = shift; | ||||
| 803 | my $opt; | ||||
| 804 | while (length($opt = substr($opts, 0, 1))) { | ||||
| 805 | if ($opt eq "C") { | ||||
| 806 | $self->{'cuddle'} = " "; | ||||
| 807 | $opts = substr($opts, 1); | ||||
| 808 | } elsif ($opt eq "i") { | ||||
| 809 | $opts =~ s/^i(\d+)//; | ||||
| 810 | $self->{'indent_size'} = $1; | ||||
| 811 | } elsif ($opt eq "T") { | ||||
| 812 | $self->{'use_tabs'} = 1; | ||||
| 813 | $opts = substr($opts, 1); | ||||
| 814 | } elsif ($opt eq "v") { | ||||
| 815 | $opts =~ s/^v([^.]*)(.|$)//; | ||||
| 816 | $self->{'ex_const'} = $1; | ||||
| 817 | } | ||||
| 818 | } | ||||
| 819 | } | ||||
| 820 | |||||
| 821 | sub new { | ||||
| 822 | my $class = shift; | ||||
| 823 | my $self = bless {}, $class; | ||||
| 824 | $self->{'cuddle'} = "\n"; | ||||
| 825 | $self->{'curcop'} = undef; | ||||
| 826 | $self->{'curstash'} = "main"; | ||||
| 827 | $self->{'ex_const'} = "'???'"; | ||||
| 828 | $self->{'expand'} = 0; | ||||
| 829 | $self->{'files'} = {}; | ||||
| 830 | $self->{'indent_size'} = 4; | ||||
| 831 | $self->{'linenums'} = 0; | ||||
| 832 | $self->{'parens'} = 0; | ||||
| 833 | $self->{'subs_todo'} = []; | ||||
| 834 | $self->{'unquote'} = 0; | ||||
| 835 | $self->{'use_dumper'} = 0; | ||||
| 836 | $self->{'use_tabs'} = 0; | ||||
| 837 | |||||
| 838 | $self->{'ambient_arybase'} = 0; | ||||
| 839 | $self->{'ambient_warnings'} = undef; # Assume no lexical warnings | ||||
| 840 | $self->{'ambient_hints'} = 0; | ||||
| 841 | $self->{'ambient_hinthash'} = undef; | ||||
| 842 | $self->init(); | ||||
| 843 | |||||
| 844 | while (my $arg = shift @_) { | ||||
| 845 | if ($arg eq "-d") { | ||||
| 846 | $self->{'use_dumper'} = 1; | ||||
| 847 | require Data::Dumper; | ||||
| 848 | } elsif ($arg =~ /^-f(.*)/) { | ||||
| 849 | $self->{'files'}{$1} = 1; | ||||
| 850 | } elsif ($arg eq "-l") { | ||||
| 851 | $self->{'linenums'} = 1; | ||||
| 852 | } elsif ($arg eq "-p") { | ||||
| 853 | $self->{'parens'} = 1; | ||||
| 854 | } elsif ($arg eq "-P") { | ||||
| 855 | $self->{'noproto'} = 1; | ||||
| 856 | } elsif ($arg eq "-q") { | ||||
| 857 | $self->{'unquote'} = 1; | ||||
| 858 | } elsif (substr($arg, 0, 2) eq "-s") { | ||||
| 859 | $self->style_opts(substr $arg, 2); | ||||
| 860 | } elsif ($arg =~ /^-x(\d)$/) { | ||||
| 861 | $self->{'expand'} = $1; | ||||
| 862 | } | ||||
| 863 | } | ||||
| 864 | return $self; | ||||
| 865 | } | ||||
| 866 | |||||
| 867 | { | ||||
| 868 | # Mask out the bits that L<warnings::register> uses | ||||
| 869 | 1 | 300ns | my $WARN_MASK; | ||
| 870 | # spent 5µs within B::Deparse::BEGIN@870 which was called:
# once (5µs+0s) by YAML::XS::BEGIN@57 at line 872 | ||||
| 871 | 1 | 5µs | $WARN_MASK = $warnings::Bits{all} | $warnings::DeadBits{all}; | ||
| 872 | 1 | 328µs | 1 | 5µs | } # spent 5µs making 1 call to B::Deparse::BEGIN@870 |
| 873 | sub WARN_MASK () { | ||||
| 874 | return $WARN_MASK; | ||||
| 875 | } | ||||
| 876 | } | ||||
| 877 | |||||
| 878 | # Initialise the contextual information, either from | ||||
| 879 | # defaults provided with the ambient_pragmas method, | ||||
| 880 | # or from perl's own defaults otherwise. | ||||
| 881 | 1 | 200ns | sub init { | ||
| 882 | my $self = shift; | ||||
| 883 | |||||
| 884 | $self->{'arybase'} = $self->{'ambient_arybase'}; | ||||
| 885 | $self->{'warnings'} = defined ($self->{'ambient_warnings'}) | ||||
| 886 | ? $self->{'ambient_warnings'} & WARN_MASK | ||||
| 887 | : undef; | ||||
| 888 | $self->{'hints'} = $self->{'ambient_hints'}; | ||||
| 889 | $self->{'hints'} &= 0xFF if $] < 5.009; | ||||
| 890 | $self->{'hinthash'} = $self->{'ambient_hinthash'}; | ||||
| 891 | |||||
| 892 | # also a convenient place to clear out subs_declared | ||||
| 893 | delete $self->{'subs_declared'}; | ||||
| 894 | } | ||||
| 895 | |||||
| 896 | sub compile { | ||||
| 897 | my(@args) = @_; | ||||
| 898 | return sub { | ||||
| 899 | my $self = B::Deparse->new(@args); | ||||
| 900 | # First deparse command-line args | ||||
| 901 | if (defined $^I) { # deparse -i | ||||
| 902 | print q(BEGIN { $^I = ).perlstring($^I).qq(; }\n); | ||||
| 903 | } | ||||
| 904 | if ($^W) { # deparse -w | ||||
| 905 | print qq(BEGIN { \$^W = $^W; }\n); | ||||
| 906 | } | ||||
| 907 | if ($/ ne "\n" or defined $O::savebackslash) { # deparse -l and -0 | ||||
| 908 | my $fs = perlstring($/) || 'undef'; | ||||
| 909 | my $bs = perlstring($O::savebackslash) || 'undef'; | ||||
| 910 | print qq(BEGIN { \$/ = $fs; \$\\ = $bs; }\n); | ||||
| 911 | } | ||||
| 912 | my @BEGINs = B::begin_av->isa("B::AV") ? B::begin_av->ARRAY : (); | ||||
| 913 | my @UNITCHECKs = B::unitcheck_av->isa("B::AV") | ||||
| 914 | ? B::unitcheck_av->ARRAY | ||||
| 915 | : (); | ||||
| 916 | my @CHECKs = B::check_av->isa("B::AV") ? B::check_av->ARRAY : (); | ||||
| 917 | my @INITs = B::init_av->isa("B::AV") ? B::init_av->ARRAY : (); | ||||
| 918 | my @ENDs = B::end_av->isa("B::AV") ? B::end_av->ARRAY : (); | ||||
| 919 | my @names = qw(BEGIN UNITCHECK CHECK INIT END); | ||||
| 920 | my @blocks = \(@BEGINs, @UNITCHECKs, @CHECKs, @INITs, @ENDs); | ||||
| 921 | while (@names) { | ||||
| 922 | my ($name, $blocks) = (shift @names, shift @blocks); | ||||
| 923 | for my $block (@$blocks) { | ||||
| 924 | $self->todo($block, 0, $name); | ||||
| 925 | } | ||||
| 926 | } | ||||
| 927 | $self->stash_subs(); | ||||
| 928 | local($SIG{"__DIE__"}) = | ||||
| 929 | sub { | ||||
| 930 | if ($self->{'curcop'}) { | ||||
| 931 | my $cop = $self->{'curcop'}; | ||||
| 932 | my($line, $file) = ($cop->line, $cop->file); | ||||
| 933 | print STDERR "While deparsing $file near line $line,\n"; | ||||
| 934 | } | ||||
| 935 | }; | ||||
| 936 | $self->{'curcv'} = main_cv; | ||||
| 937 | $self->{'curcvlex'} = undef; | ||||
| 938 | print $self->print_protos; | ||||
| 939 | @{$self->{'subs_todo'}} = | ||||
| 940 | sort {$a->[0] <=> $b->[0]} @{$self->{'subs_todo'}}; | ||||
| 941 | my $root = main_root; | ||||
| 942 | local $B::overlay = {}; | ||||
| 943 | unless (null $root) { | ||||
| 944 | $self->pad_subs($self->{'curcv'}); | ||||
| 945 | # Check for a stub-followed-by-ex-cop, resulting from a program | ||||
| 946 | # consisting solely of sub declarations. For backward-compati- | ||||
| 947 | # bility (and sane output) we don’t want to emit the stub. | ||||
| 948 | # leave | ||||
| 949 | # enter | ||||
| 950 | # stub | ||||
| 951 | # ex-nextstate (or ex-dbstate) | ||||
| 952 | my $kid; | ||||
| 953 | if ( $root->name eq 'leave' | ||||
| 954 | and ($kid = $root->first)->name eq 'enter' | ||||
| 955 | and !null($kid = $kid->sibling) and $kid->name eq 'stub' | ||||
| 956 | and !null($kid = $kid->sibling) and $kid->name eq 'null' | ||||
| 957 | and class($kid) eq 'COP' and null $kid->sibling ) | ||||
| 958 | { | ||||
| 959 | # ignore | ||||
| 960 | } else { | ||||
| 961 | $self->pessimise($root, main_start); | ||||
| 962 | print $self->indent($self->deparse_root($root)), "\n"; | ||||
| 963 | } | ||||
| 964 | } | ||||
| 965 | my @text; | ||||
| 966 | while (scalar(@{$self->{'subs_todo'}})) { | ||||
| 967 | push @text, $self->next_todo; | ||||
| 968 | } | ||||
| 969 | print $self->indent(join("", @text)), "\n" if @text; | ||||
| 970 | |||||
| 971 | # Print __DATA__ section, if necessary | ||||
| 972 | 2 | 2.45ms | 2 | 20µs | # spent 13µs (6+7) within B::Deparse::BEGIN@972 which was called:
# once (6µs+7µs) by YAML::XS::BEGIN@57 at line 972 # spent 13µs making 1 call to B::Deparse::BEGIN@972
# spent 7µs making 1 call to strict::unimport |
| 973 | my $laststash = defined $self->{'curcop'} | ||||
| 974 | ? $self->{'curcop'}->stash->NAME : $self->{'curstash'}; | ||||
| 975 | if (defined *{$laststash."::DATA"}{IO}) { | ||||
| 976 | print $self->keyword("package") . " $laststash;\n" | ||||
| 977 | unless $laststash eq $self->{'curstash'}; | ||||
| 978 | print $self->keyword("__DATA__") . "\n"; | ||||
| 979 | print readline(*{$laststash."::DATA"}); | ||||
| 980 | } | ||||
| 981 | } | ||||
| 982 | } | ||||
| 983 | |||||
| 984 | sub coderef2text { | ||||
| 985 | my $self = shift; | ||||
| 986 | my $sub = shift; | ||||
| 987 | croak "Usage: ->coderef2text(CODEREF)" unless UNIVERSAL::isa($sub, "CODE"); | ||||
| 988 | |||||
| 989 | $self->init(); | ||||
| 990 | local $self->{in_coderef2text} = 1; | ||||
| 991 | return $self->indent($self->deparse_sub(svref_2object($sub))); | ||||
| 992 | } | ||||
| 993 | |||||
| 994 | 1 | 1µs | my %strict_bits = do { | ||
| 995 | 1 | 2µs | local $^H; | ||
| 996 | 1 | 4µs | 3 | 8µs | map +($_ => strict::bits($_)), qw/refs subs vars/ # spent 8µs making 3 calls to strict::bits, avg 3µs/call |
| 997 | }; | ||||
| 998 | |||||
| 999 | sub ambient_pragmas { | ||||
| 1000 | my $self = shift; | ||||
| 1001 | my ($arybase, $hint_bits, $warning_bits, $hinthash) = (0, 0); | ||||
| 1002 | |||||
| 1003 | while (@_ > 1) { | ||||
| 1004 | my $name = shift(); | ||||
| 1005 | my $val = shift(); | ||||
| 1006 | |||||
| 1007 | if ($name eq 'strict') { | ||||
| 1008 | require strict; | ||||
| 1009 | |||||
| 1010 | if ($val eq 'none') { | ||||
| 1011 | $hint_bits &= $strict_bits{$_} for qw/refs subs vars/; | ||||
| 1012 | next(); | ||||
| 1013 | } | ||||
| 1014 | |||||
| 1015 | my @names; | ||||
| 1016 | if ($val eq "all") { | ||||
| 1017 | @names = qw/refs subs vars/; | ||||
| 1018 | } | ||||
| 1019 | elsif (ref $val) { | ||||
| 1020 | @names = @$val; | ||||
| 1021 | } | ||||
| 1022 | else { | ||||
| 1023 | @names = split' ', $val; | ||||
| 1024 | } | ||||
| 1025 | $hint_bits |= $strict_bits{$_} for @names; | ||||
| 1026 | } | ||||
| 1027 | |||||
| 1028 | elsif ($name eq '$[') { | ||||
| 1029 | if (OPpCONST_ARYBASE) { | ||||
| 1030 | $arybase = $val; | ||||
| 1031 | } else { | ||||
| 1032 | croak "\$[ can't be non-zero on this perl" unless $val == 0; | ||||
| 1033 | } | ||||
| 1034 | } | ||||
| 1035 | |||||
| 1036 | elsif ($name eq 'integer' | ||||
| 1037 | || $name eq 'bytes' | ||||
| 1038 | || $name eq 'utf8') { | ||||
| 1039 | require "$name.pm"; | ||||
| 1040 | if ($val) { | ||||
| 1041 | $hint_bits |= ${$::{"${name}::"}{"hint_bits"}}; | ||||
| 1042 | } | ||||
| 1043 | else { | ||||
| 1044 | $hint_bits &= ~${$::{"${name}::"}{"hint_bits"}}; | ||||
| 1045 | } | ||||
| 1046 | } | ||||
| 1047 | |||||
| 1048 | elsif ($name eq 're') { | ||||
| 1049 | require re; | ||||
| 1050 | if ($val eq 'none') { | ||||
| 1051 | $hint_bits &= ~re::bits(qw/taint eval/); | ||||
| 1052 | next(); | ||||
| 1053 | } | ||||
| 1054 | |||||
| 1055 | my @names; | ||||
| 1056 | if ($val eq 'all') { | ||||
| 1057 | @names = qw/taint eval/; | ||||
| 1058 | } | ||||
| 1059 | elsif (ref $val) { | ||||
| 1060 | @names = @$val; | ||||
| 1061 | } | ||||
| 1062 | else { | ||||
| 1063 | @names = split' ',$val; | ||||
| 1064 | } | ||||
| 1065 | $hint_bits |= re::bits(@names); | ||||
| 1066 | } | ||||
| 1067 | |||||
| 1068 | elsif ($name eq 'warnings') { | ||||
| 1069 | if ($val eq 'none') { | ||||
| 1070 | $warning_bits = $warnings::NONE; | ||||
| 1071 | next(); | ||||
| 1072 | } | ||||
| 1073 | |||||
| 1074 | my @names; | ||||
| 1075 | if (ref $val) { | ||||
| 1076 | @names = @$val; | ||||
| 1077 | } | ||||
| 1078 | else { | ||||
| 1079 | @names = split/\s+/, $val; | ||||
| 1080 | } | ||||
| 1081 | |||||
| 1082 | $warning_bits = $warnings::NONE if !defined ($warning_bits); | ||||
| 1083 | $warning_bits |= warnings::bits(@names); | ||||
| 1084 | } | ||||
| 1085 | |||||
| 1086 | elsif ($name eq 'warning_bits') { | ||||
| 1087 | $warning_bits = $val; | ||||
| 1088 | } | ||||
| 1089 | |||||
| 1090 | elsif ($name eq 'hint_bits') { | ||||
| 1091 | $hint_bits = $val; | ||||
| 1092 | } | ||||
| 1093 | |||||
| 1094 | elsif ($name eq '%^H') { | ||||
| 1095 | $hinthash = $val; | ||||
| 1096 | } | ||||
| 1097 | |||||
| 1098 | else { | ||||
| 1099 | croak "Unknown pragma type: $name"; | ||||
| 1100 | } | ||||
| 1101 | } | ||||
| 1102 | if (@_) { | ||||
| 1103 | croak "The ambient_pragmas method expects an even number of args"; | ||||
| 1104 | } | ||||
| 1105 | |||||
| 1106 | $self->{'ambient_arybase'} = $arybase; | ||||
| 1107 | $self->{'ambient_warnings'} = $warning_bits; | ||||
| 1108 | $self->{'ambient_hints'} = $hint_bits; | ||||
| 1109 | $self->{'ambient_hinthash'} = $hinthash; | ||||
| 1110 | } | ||||
| 1111 | |||||
| 1112 | # This method is the inner loop, so try to keep it simple | ||||
| 1113 | sub deparse { | ||||
| 1114 | my $self = shift; | ||||
| 1115 | my($op, $cx) = @_; | ||||
| 1116 | |||||
| 1117 | Carp::confess("Null op in deparse") if !defined($op) | ||||
| 1118 | || class($op) eq "NULL"; | ||||
| 1119 | my $meth = "pp_" . $op->name; | ||||
| 1120 | return $self->$meth($op, $cx); | ||||
| 1121 | } | ||||
| 1122 | |||||
| 1123 | sub indent { | ||||
| 1124 | my $self = shift; | ||||
| 1125 | my $txt = shift; | ||||
| 1126 | # \cK also swallows a preceding line break when followed by a | ||||
| 1127 | # semicolon. | ||||
| 1128 | $txt =~ s/\n\cK;//g; | ||||
| 1129 | my @lines = split(/\n/, $txt); | ||||
| 1130 | my $leader = ""; | ||||
| 1131 | my $level = 0; | ||||
| 1132 | my $line; | ||||
| 1133 | for $line (@lines) { | ||||
| 1134 | my $cmd = substr($line, 0, 1); | ||||
| 1135 | if ($cmd eq "\t" or $cmd eq "\b") { | ||||
| 1136 | $level += ($cmd eq "\t" ? 1 : -1) * $self->{'indent_size'}; | ||||
| 1137 | if ($self->{'use_tabs'}) { | ||||
| 1138 | $leader = "\t" x ($level / 8) . " " x ($level % 8); | ||||
| 1139 | } else { | ||||
| 1140 | $leader = " " x $level; | ||||
| 1141 | } | ||||
| 1142 | $line = substr($line, 1); | ||||
| 1143 | } | ||||
| 1144 | if (index($line, "\f") > 0) { | ||||
| 1145 | $line =~ s/\f/\n/; | ||||
| 1146 | } | ||||
| 1147 | if (substr($line, 0, 1) eq "\f") { | ||||
| 1148 | $line = substr($line, 1); # no indent | ||||
| 1149 | } else { | ||||
| 1150 | $line = $leader . $line; | ||||
| 1151 | } | ||||
| 1152 | $line =~ s/\cK;?//g; | ||||
| 1153 | } | ||||
| 1154 | return join("\n", @lines); | ||||
| 1155 | } | ||||
| 1156 | |||||
| 1157 | sub pad_subs { | ||||
| 1158 | my ($self, $cv) = @_; | ||||
| 1159 | my $padlist = $cv->PADLIST; | ||||
| 1160 | my @names = $padlist->ARRAYelt(0)->ARRAY; | ||||
| 1161 | my @values = $padlist->ARRAYelt(1)->ARRAY; | ||||
| 1162 | my @todo; | ||||
| 1163 | PADENTRY: | ||||
| 1164 | for my $ix (0.. $#names) { for $_ ($names[$ix]) { | ||||
| 1165 | next if class($_) eq "SPECIAL"; | ||||
| 1166 | my $name = $_->PVX; | ||||
| 1167 | if (defined $name && $name =~ /^&./) { | ||||
| 1168 | my $low = $_->COP_SEQ_RANGE_LOW; | ||||
| 1169 | my $flags = $_->FLAGS; | ||||
| 1170 | my $outer = $flags & PADNAMEt_OUTER; | ||||
| 1171 | if ($flags & SVpad_OUR) { | ||||
| 1172 | push @todo, [$low, undef, 0, $_] | ||||
| 1173 | # [seq, no cv, not format, padname] | ||||
| 1174 | unless $outer; | ||||
| 1175 | next; | ||||
| 1176 | } | ||||
| 1177 | my $protocv = $flags & SVpad_STATE | ||||
| 1178 | ? $values[$ix] | ||||
| 1179 | : $_->PROTOCV; | ||||
| 1180 | if (class ($protocv) ne 'CV') { | ||||
| 1181 | my $flags = $flags; | ||||
| 1182 | my $cv = $cv; | ||||
| 1183 | my $name = $_; | ||||
| 1184 | while ($flags & PADNAMEt_OUTER && class ($protocv) ne 'CV') | ||||
| 1185 | { | ||||
| 1186 | $cv = $cv->OUTSIDE; | ||||
| 1187 | next PADENTRY if class($cv) eq 'SPECIAL'; # XXX freed? | ||||
| 1188 | my $padlist = $cv->PADLIST; | ||||
| 1189 | my $ix = $name->PARENT_PAD_INDEX; | ||||
| 1190 | $name = $padlist->NAMES->ARRAYelt($ix); | ||||
| 1191 | $flags = $name->FLAGS; | ||||
| 1192 | $protocv = $flags & SVpad_STATE | ||||
| 1193 | ? $padlist->ARRAYelt(1)->ARRAYelt($ix) | ||||
| 1194 | : $name->PROTOCV; | ||||
| 1195 | } | ||||
| 1196 | } | ||||
| 1197 | my $defined_in_this_sub = ${$protocv->OUTSIDE} == $$cv || do { | ||||
| 1198 | my $other = $protocv->PADLIST; | ||||
| 1199 | $$other && $other->outid == $padlist->id; | ||||
| 1200 | }; | ||||
| 1201 | if ($flags & PADNAMEt_OUTER) { | ||||
| 1202 | next unless $defined_in_this_sub; | ||||
| 1203 | push @todo, [$protocv->OUTSIDE_SEQ, $protocv, 0, $_]; | ||||
| 1204 | next; | ||||
| 1205 | } | ||||
| 1206 | my $outseq = $protocv->OUTSIDE_SEQ; | ||||
| 1207 | if ($outseq <= $low) { | ||||
| 1208 | # defined before its name is visible, so it’s gotta be | ||||
| 1209 | # declared and defined at once: my sub foo { ... } | ||||
| 1210 | push @todo, [$low, $protocv, 0, $_]; | ||||
| 1211 | } | ||||
| 1212 | else { | ||||
| 1213 | # declared and defined separately: my sub f; sub f { ... } | ||||
| 1214 | push @todo, [$low, undef, 0, $_]; | ||||
| 1215 | push @todo, [$outseq, $protocv, 0, $_] | ||||
| 1216 | if $defined_in_this_sub; | ||||
| 1217 | } | ||||
| 1218 | } | ||||
| 1219 | }} | ||||
| 1220 | @{$self->{'subs_todo'}} = | ||||
| 1221 | sort {$a->[0] <=> $b->[0]} @{$self->{'subs_todo'}}, @todo | ||||
| 1222 | } | ||||
| 1223 | |||||
| 1224 | sub deparse_sub { | ||||
| 1225 | my $self = shift; | ||||
| 1226 | my $cv = shift; | ||||
| 1227 | my $proto = ""; | ||||
| 1228 | Carp::confess("NULL in deparse_sub") if !defined($cv) || $cv->isa("B::NULL"); | ||||
| 1229 | Carp::confess("SPECIAL in deparse_sub") if $cv->isa("B::SPECIAL"); | ||||
| 1230 | local $self->{'curcop'} = $self->{'curcop'}; | ||||
| 1231 | if ($cv->FLAGS & SVf_POK) { | ||||
| 1232 | $proto = "(". $cv->PV . ") "; | ||||
| 1233 | } | ||||
| 1234 | if ($cv->CvFLAGS & (CVf_METHOD|CVf_LOCKED|CVf_LVALUE|CVf_ANONCONST)) { | ||||
| 1235 | $proto .= ": "; | ||||
| 1236 | $proto .= "lvalue " if $cv->CvFLAGS & CVf_LVALUE; | ||||
| 1237 | $proto .= "locked " if $cv->CvFLAGS & CVf_LOCKED; | ||||
| 1238 | $proto .= "method " if $cv->CvFLAGS & CVf_METHOD; | ||||
| 1239 | $proto .= "const " if $cv->CvFLAGS & CVf_ANONCONST; | ||||
| 1240 | } | ||||
| 1241 | |||||
| 1242 | local($self->{'curcv'}) = $cv; | ||||
| 1243 | local($self->{'curcvlex'}); | ||||
| 1244 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
| 1245 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
| 1246 | my $body; | ||||
| 1247 | my $root = $cv->ROOT; | ||||
| 1248 | local $B::overlay = {}; | ||||
| 1249 | if (not null $root) { | ||||
| 1250 | $self->pad_subs($cv); | ||||
| 1251 | $self->pessimise($root, $cv->START); | ||||
| 1252 | my $lineseq = $root->first; | ||||
| 1253 | if ($lineseq->name eq "lineseq") { | ||||
| 1254 | my @ops; | ||||
| 1255 | for(my$o=$lineseq->first; $$o; $o=$o->sibling) { | ||||
| 1256 | push @ops, $o; | ||||
| 1257 | } | ||||
| 1258 | $body = $self->lineseq(undef, 0, @ops).";"; | ||||
| 1259 | my $scope_en = $self->find_scope_en($lineseq); | ||||
| 1260 | if (defined $scope_en) { | ||||
| 1261 | my $subs = join"", $self->seq_subs($scope_en); | ||||
| 1262 | $body .= ";\n$subs" if length($subs); | ||||
| 1263 | } | ||||
| 1264 | } | ||||
| 1265 | else { | ||||
| 1266 | $body = $self->deparse($root->first, 0); | ||||
| 1267 | } | ||||
| 1268 | } | ||||
| 1269 | else { | ||||
| 1270 | my $sv = $cv->const_sv; | ||||
| 1271 | if ($$sv) { | ||||
| 1272 | # uh-oh. inlinable sub... format it differently | ||||
| 1273 | return $proto . "{ " . $self->const($sv, 0) . " }\n"; | ||||
| 1274 | } else { # XSUB? (or just a declaration) | ||||
| 1275 | return "$proto;\n"; | ||||
| 1276 | } | ||||
| 1277 | } | ||||
| 1278 | return $proto ."{\n\t$body\n\b}" ."\n"; | ||||
| 1279 | } | ||||
| 1280 | |||||
| 1281 | sub deparse_format { | ||||
| 1282 | my $self = shift; | ||||
| 1283 | my $form = shift; | ||||
| 1284 | my @text; | ||||
| 1285 | local($self->{'curcv'}) = $form; | ||||
| 1286 | local($self->{'curcvlex'}); | ||||
| 1287 | local($self->{'in_format'}) = 1; | ||||
| 1288 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
| 1289 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
| 1290 | my $op = $form->ROOT; | ||||
| 1291 | local $B::overlay = {}; | ||||
| 1292 | $self->pessimise($op, $form->START); | ||||
| 1293 | my $kid; | ||||
| 1294 | return "\f." if $op->first->name eq 'stub' | ||||
| 1295 | || $op->first->name eq 'nextstate'; | ||||
| 1296 | $op = $op->first->first; # skip leavewrite, lineseq | ||||
| 1297 | while (not null $op) { | ||||
| 1298 | $op = $op->sibling; # skip nextstate | ||||
| 1299 | my @exprs; | ||||
| 1300 | $kid = $op->first->sibling; # skip pushmark | ||||
| 1301 | push @text, "\f".$self->const_sv($kid)->PV; | ||||
| 1302 | $kid = $kid->sibling; | ||||
| 1303 | for (; not null $kid; $kid = $kid->sibling) { | ||||
| 1304 | push @exprs, $self->deparse($kid, -1); | ||||
| 1305 | $exprs[-1] =~ s/;\z//; | ||||
| 1306 | } | ||||
| 1307 | push @text, "\f".join(", ", @exprs)."\n" if @exprs; | ||||
| 1308 | $op = $op->sibling; | ||||
| 1309 | } | ||||
| 1310 | return join("", @text) . "\f."; | ||||
| 1311 | } | ||||
| 1312 | |||||
| 1313 | sub is_scope { | ||||
| 1314 | my $op = shift; | ||||
| 1315 | return $op->name eq "leave" || $op->name eq "scope" | ||||
| 1316 | || $op->name eq "lineseq" | ||||
| 1317 | || ($op->name eq "null" && class($op) eq "UNOP" | ||||
| 1318 | && (is_scope($op->first) || $op->first->name eq "enter")); | ||||
| 1319 | } | ||||
| 1320 | |||||
| 1321 | sub is_state { | ||||
| 1322 | my $name = $_[0]->name; | ||||
| 1323 | return $name eq "nextstate" || $name eq "dbstate" || $name eq "setstate"; | ||||
| 1324 | } | ||||
| 1325 | |||||
| 1326 | sub is_miniwhile { # check for one-line loop ('foo() while $y--') | ||||
| 1327 | my $op = shift; | ||||
| 1328 | return (!null($op) and null($op->sibling) | ||||
| 1329 | and $op->name eq "null" and class($op) eq "UNOP" | ||||
| 1330 | and (($op->first->name =~ /^(and|or)$/ | ||||
| 1331 | and $op->first->first->sibling->name eq "lineseq") | ||||
| 1332 | or ($op->first->name eq "lineseq" | ||||
| 1333 | and not null $op->first->first->sibling | ||||
| 1334 | and $op->first->first->sibling->name eq "unstack") | ||||
| 1335 | )); | ||||
| 1336 | } | ||||
| 1337 | |||||
| 1338 | # Check if the op and its sibling are the initialization and the rest of a | ||||
| 1339 | # for (..;..;..) { ... } loop | ||||
| 1340 | sub is_for_loop { | ||||
| 1341 | my $op = shift; | ||||
| 1342 | # This OP might be almost anything, though it won't be a | ||||
| 1343 | # nextstate. (It's the initialization, so in the canonical case it | ||||
| 1344 | # will be an sassign.) The sibling is (old style) a lineseq whose | ||||
| 1345 | # first child is a nextstate and whose second is a leaveloop, or | ||||
| 1346 | # (new style) an unstack whose sibling is a leaveloop. | ||||
| 1347 | my $lseq = $op->sibling; | ||||
| 1348 | return 0 unless !is_state($op) and !null($lseq); | ||||
| 1349 | if ($lseq->name eq "lineseq") { | ||||
| 1350 | if ($lseq->first && !null($lseq->first) && is_state($lseq->first) | ||||
| 1351 | && (my $sib = $lseq->first->sibling)) { | ||||
| 1352 | return (!null($sib) && $sib->name eq "leaveloop"); | ||||
| 1353 | } | ||||
| 1354 | } elsif ($lseq->name eq "unstack" && ($lseq->flags & OPf_SPECIAL)) { | ||||
| 1355 | my $sib = $lseq->sibling; | ||||
| 1356 | return $sib && !null($sib) && $sib->name eq "leaveloop"; | ||||
| 1357 | } | ||||
| 1358 | return 0; | ||||
| 1359 | } | ||||
| 1360 | |||||
| 1361 | sub is_scalar { | ||||
| 1362 | my $op = shift; | ||||
| 1363 | return ($op->name eq "rv2sv" or | ||||
| 1364 | $op->name eq "padsv" or | ||||
| 1365 | $op->name eq "gv" or # only in array/hash constructs | ||||
| 1366 | $op->flags & OPf_KIDS && !null($op->first) | ||||
| 1367 | && $op->first->name eq "gvsv"); | ||||
| 1368 | } | ||||
| 1369 | |||||
| 1370 | sub maybe_parens { | ||||
| 1371 | my $self = shift; | ||||
| 1372 | my($text, $cx, $prec) = @_; | ||||
| 1373 | if ($prec < $cx # unary ops nest just fine | ||||
| 1374 | or $prec == $cx and $cx != 4 and $cx != 16 and $cx != 21 | ||||
| 1375 | or $self->{'parens'}) | ||||
| 1376 | { | ||||
| 1377 | $text = "($text)"; | ||||
| 1378 | # In a unop, let parent reuse our parens; see maybe_parens_unop | ||||
| 1379 | $text = "\cS" . $text if $cx == 16; | ||||
| 1380 | return $text; | ||||
| 1381 | } else { | ||||
| 1382 | return $text; | ||||
| 1383 | } | ||||
| 1384 | } | ||||
| 1385 | |||||
| 1386 | # same as above, but get around the 'if it looks like a function' rule | ||||
| 1387 | sub maybe_parens_unop { | ||||
| 1388 | my $self = shift; | ||||
| 1389 | my($name, $kid, $cx) = @_; | ||||
| 1390 | if ($cx > 16 or $self->{'parens'}) { | ||||
| 1391 | $kid = $self->deparse($kid, 1); | ||||
| 1392 | if ($name eq "umask" && $kid =~ /^\d+$/) { | ||||
| 1393 | $kid = sprintf("%#o", $kid); | ||||
| 1394 | } | ||||
| 1395 | return $self->keyword($name) . "($kid)"; | ||||
| 1396 | } else { | ||||
| 1397 | $kid = $self->deparse($kid, 16); | ||||
| 1398 | if ($name eq "umask" && $kid =~ /^\d+$/) { | ||||
| 1399 | $kid = sprintf("%#o", $kid); | ||||
| 1400 | } | ||||
| 1401 | $name = $self->keyword($name); | ||||
| 1402 | if (substr($kid, 0, 1) eq "\cS") { | ||||
| 1403 | # use kid's parens | ||||
| 1404 | return $name . substr($kid, 1); | ||||
| 1405 | } elsif (substr($kid, 0, 1) eq "(") { | ||||
| 1406 | # avoid looks-like-a-function trap with extra parens | ||||
| 1407 | # ('+' can lead to ambiguities) | ||||
| 1408 | return "$name(" . $kid . ")"; | ||||
| 1409 | } else { | ||||
| 1410 | return "$name $kid"; | ||||
| 1411 | } | ||||
| 1412 | } | ||||
| 1413 | } | ||||
| 1414 | |||||
| 1415 | sub maybe_parens_func { | ||||
| 1416 | my $self = shift; | ||||
| 1417 | my($func, $text, $cx, $prec) = @_; | ||||
| 1418 | if ($prec <= $cx or substr($text, 0, 1) eq "(" or $self->{'parens'}) { | ||||
| 1419 | return "$func($text)"; | ||||
| 1420 | } else { | ||||
| 1421 | return "$func $text"; | ||||
| 1422 | } | ||||
| 1423 | } | ||||
| 1424 | |||||
| 1425 | sub find_our_type { | ||||
| 1426 | my ($self, $name) = @_; | ||||
| 1427 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
| 1428 | my $seq = $self->{'curcop'} ? $self->{'curcop'}->cop_seq : 0; | ||||
| 1429 | for my $a (@{$self->{'curcvlex'}{"o$name"}}) { | ||||
| 1430 | my ($st, undef, $padname) = @$a; | ||||
| 1431 | if ($st >= $seq && $padname->FLAGS & SVpad_TYPED) { | ||||
| 1432 | return $padname->SvSTASH->NAME; | ||||
| 1433 | } | ||||
| 1434 | } | ||||
| 1435 | return ''; | ||||
| 1436 | } | ||||
| 1437 | |||||
| 1438 | sub maybe_local { | ||||
| 1439 | my $self = shift; | ||||
| 1440 | my($op, $cx, $text) = @_; | ||||
| 1441 | my $name = $op->name; | ||||
| 1442 | my $our_intro = ($name =~ /^(?:(?:gv|rv2)[ash]v|split|refassign | ||||
| 1443 | |lv(?:av)?ref)$/x) | ||||
| 1444 | ? OPpOUR_INTRO | ||||
| 1445 | : 0; | ||||
| 1446 | my $lval_intro = $name eq 'split' ? 0 : OPpLVAL_INTRO; | ||||
| 1447 | # The @a in \(@a) isn't in ref context, but only when the | ||||
| 1448 | # parens are there. | ||||
| 1449 | my $need_parens = $self->{'in_refgen'} && $name =~ /[ah]v\z/ | ||||
| 1450 | && ($op->flags & (OPf_PARENS|OPf_REF)) == OPf_PARENS; | ||||
| 1451 | if ((my $priv = $op->private) & ($lval_intro|$our_intro)) { | ||||
| 1452 | my @our_local; | ||||
| 1453 | push @our_local, "local" if $priv & $lval_intro; | ||||
| 1454 | push @our_local, "our" if $priv & $our_intro; | ||||
| 1455 | my $our_local = join " ", map $self->keyword($_), @our_local; | ||||
| 1456 | if( $our_local[-1] eq 'our' ) { | ||||
| 1457 | if ( $text !~ /^\W(\w+::)*\w+\z/ | ||||
| 1458 | and !utf8::decode($text) || $text !~ /^\W(\w+::)*\w+\z/ | ||||
| 1459 | ) { | ||||
| 1460 | die "Unexpected our($text)\n"; | ||||
| 1461 | } | ||||
| 1462 | $text =~ s/(\w+::)+//; | ||||
| 1463 | |||||
| 1464 | if (my $type = $self->find_our_type($text)) { | ||||
| 1465 | $our_local .= ' ' . $type; | ||||
| 1466 | } | ||||
| 1467 | } | ||||
| 1468 | return $need_parens ? "($text)" : $text | ||||
| 1469 | if $self->{'avoid_local'}{$$op}; | ||||
| 1470 | if ($need_parens) { | ||||
| 1471 | return "$our_local($text)"; | ||||
| 1472 | } elsif (want_scalar($op)) { | ||||
| 1473 | return "$our_local $text"; | ||||
| 1474 | } else { | ||||
| 1475 | return $self->maybe_parens_func("$our_local", $text, $cx, 16); | ||||
| 1476 | } | ||||
| 1477 | } else { | ||||
| 1478 | return $need_parens ? "($text)" : $text; | ||||
| 1479 | } | ||||
| 1480 | } | ||||
| 1481 | |||||
| 1482 | sub maybe_targmy { | ||||
| 1483 | my $self = shift; | ||||
| 1484 | my($op, $cx, $func, @args) = @_; | ||||
| 1485 | if ($op->private & OPpTARGET_MY) { | ||||
| 1486 | my $var = $self->padname($op->targ); | ||||
| 1487 | my $val = $func->($self, $op, 7, @args); | ||||
| 1488 | return $self->maybe_parens("$var = $val", $cx, 7); | ||||
| 1489 | } else { | ||||
| 1490 | return $func->($self, $op, $cx, @args); | ||||
| 1491 | } | ||||
| 1492 | } | ||||
| 1493 | |||||
| 1494 | sub padname_sv { | ||||
| 1495 | my $self = shift; | ||||
| 1496 | my $targ = shift; | ||||
| 1497 | return $self->{'curcv'}->PADLIST->ARRAYelt(0)->ARRAYelt($targ); | ||||
| 1498 | } | ||||
| 1499 | |||||
| 1500 | sub maybe_my { | ||||
| 1501 | my $self = shift; | ||||
| 1502 | my($op, $cx, $text, $padname, $forbid_parens) = @_; | ||||
| 1503 | # The @a in \(@a) isn't in ref context, but only when the | ||||
| 1504 | # parens are there. | ||||
| 1505 | my $need_parens = !$forbid_parens && $self->{'in_refgen'} | ||||
| 1506 | && $op->name =~ /[ah]v\z/ | ||||
| 1507 | && ($op->flags & (OPf_PARENS|OPf_REF)) == OPf_PARENS; | ||||
| 1508 | # The @a in \my @a must not have parens. | ||||
| 1509 | if (!$need_parens && $self->{'in_refgen'}) { | ||||
| 1510 | $forbid_parens = 1; | ||||
| 1511 | } | ||||
| 1512 | if ($op->private & OPpLVAL_INTRO and not $self->{'avoid_local'}{$$op}) { | ||||
| 1513 | # Check $padname->FLAGS for statehood, rather than $op->private, | ||||
| 1514 | # because enteriter ops do not carry the flag. | ||||
| 1515 | my $my = | ||||
| 1516 | $self->keyword($padname->FLAGS & SVpad_STATE ? "state" : "my"); | ||||
| 1517 | if ($padname->FLAGS & SVpad_TYPED) { | ||||
| 1518 | $my .= ' ' . $padname->SvSTASH->NAME; | ||||
| 1519 | } | ||||
| 1520 | if ($need_parens) { | ||||
| 1521 | return "$my($text)"; | ||||
| 1522 | } elsif ($forbid_parens || want_scalar($op)) { | ||||
| 1523 | return "$my $text"; | ||||
| 1524 | } else { | ||||
| 1525 | return $self->maybe_parens_func($my, $text, $cx, 16); | ||||
| 1526 | } | ||||
| 1527 | } else { | ||||
| 1528 | return $need_parens ? "($text)" : $text; | ||||
| 1529 | } | ||||
| 1530 | } | ||||
| 1531 | |||||
| 1532 | # The following OPs don't have functions: | ||||
| 1533 | |||||
| 1534 | # pp_padany -- does not exist after parsing | ||||
| 1535 | |||||
| 1536 | sub AUTOLOAD { | ||||
| 1537 | if ($AUTOLOAD =~ s/^.*::pp_//) { | ||||
| 1538 | warn "unexpected OP_". | ||||
| 1539 | ($_[1]->type == OP_CUSTOM ? "CUSTOM ($AUTOLOAD)" : uc $AUTOLOAD); | ||||
| 1540 | return "XXX"; | ||||
| 1541 | } else { | ||||
| 1542 | die "Undefined subroutine $AUTOLOAD called"; | ||||
| 1543 | } | ||||
| 1544 | } | ||||
| 1545 | |||||
| 1546 | sub DESTROY {} # Do not AUTOLOAD | ||||
| 1547 | |||||
| 1548 | # $root should be the op which represents the root of whatever | ||||
| 1549 | # we're sequencing here. If it's undefined, then we don't append | ||||
| 1550 | # any subroutine declarations to the deparsed ops, otherwise we | ||||
| 1551 | # append appropriate declarations. | ||||
| 1552 | sub lineseq { | ||||
| 1553 | my($self, $root, $cx, @ops) = @_; | ||||
| 1554 | my($expr, @exprs); | ||||
| 1555 | |||||
| 1556 | my $out_cop = $self->{'curcop'}; | ||||
| 1557 | my $out_seq = defined($out_cop) ? $out_cop->cop_seq : undef; | ||||
| 1558 | my $limit_seq; | ||||
| 1559 | if (defined $root) { | ||||
| 1560 | $limit_seq = $out_seq; | ||||
| 1561 | my $nseq; | ||||
| 1562 | $nseq = $self->find_scope_st($root->sibling) if ${$root->sibling}; | ||||
| 1563 | $limit_seq = $nseq if !defined($limit_seq) | ||||
| 1564 | or defined($nseq) && $nseq < $limit_seq; | ||||
| 1565 | } | ||||
| 1566 | $limit_seq = $self->{'limit_seq'} | ||||
| 1567 | if defined($self->{'limit_seq'}) | ||||
| 1568 | && (!defined($limit_seq) || $self->{'limit_seq'} < $limit_seq); | ||||
| 1569 | local $self->{'limit_seq'} = $limit_seq; | ||||
| 1570 | |||||
| 1571 | $self->walk_lineseq($root, \@ops, | ||||
| 1572 | sub { push @exprs, $_[0]} ); | ||||
| 1573 | |||||
| 1574 | my $sep = $cx ? '; ' : ";\n"; | ||||
| 1575 | my $body = join($sep, grep {length} @exprs); | ||||
| 1576 | my $subs = ""; | ||||
| 1577 | if (defined $root && defined $limit_seq && !$self->{'in_format'}) { | ||||
| 1578 | $subs = join "\n", $self->seq_subs($limit_seq); | ||||
| 1579 | } | ||||
| 1580 | return join($sep, grep {length} $body, $subs); | ||||
| 1581 | } | ||||
| 1582 | |||||
| 1583 | sub scopeop { | ||||
| 1584 | my($real_block, $self, $op, $cx) = @_; | ||||
| 1585 | my $kid; | ||||
| 1586 | my @kids; | ||||
| 1587 | |||||
| 1588 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
| 1589 | = @$self{qw'curstash warnings hints hinthash'} if $real_block; | ||||
| 1590 | if ($real_block) { | ||||
| 1591 | $kid = $op->first->sibling; # skip enter | ||||
| 1592 | if (is_miniwhile($kid)) { | ||||
| 1593 | my $top = $kid->first; | ||||
| 1594 | my $name = $top->name; | ||||
| 1595 | if ($name eq "and") { | ||||
| 1596 | $name = $self->keyword("while"); | ||||
| 1597 | } elsif ($name eq "or") { | ||||
| 1598 | $name = $self->keyword("until"); | ||||
| 1599 | } else { # no conditional -> while 1 or until 0 | ||||
| 1600 | return $self->deparse($top->first, 1) . " " | ||||
| 1601 | . $self->keyword("while") . " 1"; | ||||
| 1602 | } | ||||
| 1603 | my $cond = $top->first; | ||||
| 1604 | my $body = $cond->sibling->first; # skip lineseq | ||||
| 1605 | $cond = $self->deparse($cond, 1); | ||||
| 1606 | $body = $self->deparse($body, 1); | ||||
| 1607 | return "$body $name $cond"; | ||||
| 1608 | } | ||||
| 1609 | } else { | ||||
| 1610 | $kid = $op->first; | ||||
| 1611 | } | ||||
| 1612 | for (; !null($kid); $kid = $kid->sibling) { | ||||
| 1613 | push @kids, $kid; | ||||
| 1614 | } | ||||
| 1615 | if ($cx > 0) { # inside an expression, (a do {} while for lineseq) | ||||
| 1616 | my $body = $self->lineseq($op, 0, @kids); | ||||
| 1617 | return is_lexical_subs(@kids) | ||||
| 1618 | ? $body | ||||
| 1619 | : ($self->lex_in_scope("&do") ? "CORE::do" : "do") | ||||
| 1620 | . " {\n\t$body\n\b}"; | ||||
| 1621 | } else { | ||||
| 1622 | my $lineseq = $self->lineseq($op, $cx, @kids); | ||||
| 1623 | return (length ($lineseq) ? "$lineseq;" : ""); | ||||
| 1624 | } | ||||
| 1625 | } | ||||
| 1626 | |||||
| 1627 | sub pp_scope { scopeop(0, @_); } | ||||
| 1628 | sub pp_lineseq { scopeop(0, @_); } | ||||
| 1629 | sub pp_leave { scopeop(1, @_); } | ||||
| 1630 | |||||
| 1631 | # This is a special case of scopeop and lineseq, for the case of the | ||||
| 1632 | # main_root. The difference is that we print the output statements as | ||||
| 1633 | # soon as we get them, for the sake of impatient users. | ||||
| 1634 | sub deparse_root { | ||||
| 1635 | my $self = shift; | ||||
| 1636 | my($op) = @_; | ||||
| 1637 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
| 1638 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
| 1639 | my @kids; | ||||
| 1640 | return if null $op->first; # Can happen, e.g., for Bytecode without -k | ||||
| 1641 | for (my $kid = $op->first->sibling; !null($kid); $kid = $kid->sibling) { | ||||
| 1642 | push @kids, $kid; | ||||
| 1643 | } | ||||
| 1644 | $self->walk_lineseq($op, \@kids, | ||||
| 1645 | sub { return unless length $_[0]; | ||||
| 1646 | print $self->indent($_[0].';'); | ||||
| 1647 | print "\n" | ||||
| 1648 | unless $_[1] == $#kids; | ||||
| 1649 | }); | ||||
| 1650 | } | ||||
| 1651 | |||||
| 1652 | sub walk_lineseq { | ||||
| 1653 | my ($self, $op, $kids, $callback) = @_; | ||||
| 1654 | my @kids = @$kids; | ||||
| 1655 | for (my $i = 0; $i < @kids; $i++) { | ||||
| 1656 | my $expr = ""; | ||||
| 1657 | if (is_state $kids[$i]) { | ||||
| 1658 | $expr = $self->deparse($kids[$i++], 0); | ||||
| 1659 | if ($i > $#kids) { | ||||
| 1660 | $callback->($expr, $i); | ||||
| 1661 | last; | ||||
| 1662 | } | ||||
| 1663 | } | ||||
| 1664 | if (is_for_loop($kids[$i])) { | ||||
| 1665 | $callback->($expr . $self->for_loop($kids[$i], 0), | ||||
| 1666 | $i += $kids[$i]->sibling->name eq "unstack" ? 2 : 1); | ||||
| 1667 | next; | ||||
| 1668 | } | ||||
| 1669 | my $expr2 = $self->deparse($kids[$i], (@kids != 1)/2); | ||||
| 1670 | $expr2 =~ s/^sub :(?!:)/+sub :/; # statement label otherwise | ||||
| 1671 | $expr .= $expr2; | ||||
| 1672 | $callback->($expr, $i); | ||||
| 1673 | } | ||||
| 1674 | } | ||||
| 1675 | |||||
| 1676 | # The BEGIN {} is used here because otherwise this code isn't executed | ||||
| 1677 | # when you run B::Deparse on itself. | ||||
| 1678 | 1 | 100ns | my %globalnames; | ||
| 1679 | 1 | 8µs | # spent 8µs within B::Deparse::BEGIN@1679 which was called:
# once (8µs+0s) by YAML::XS::BEGIN@57 at line 1680 | ||
| 1680 | 1 | 2.57ms | 1 | 8µs | "ENV", "ARGV", "ARGVOUT", "_"); } # spent 8µs making 1 call to B::Deparse::BEGIN@1679 |
| 1681 | |||||
| 1682 | sub gv_name { | ||||
| 1683 | my $self = shift; | ||||
| 1684 | my $gv = shift; | ||||
| 1685 | my $raw = shift; | ||||
| 1686 | #Carp::confess() unless ref($gv) eq "B::GV"; | ||||
| 1687 | my $cv = $gv->FLAGS & SVf_ROK ? $gv->RV : 0; | ||||
| 1688 | my $stash = ($cv || $gv)->STASH->NAME; | ||||
| 1689 | my $name = $raw | ||||
| 1690 | ? $cv ? $cv->NAME_HEK || $cv->GV->NAME : $gv->NAME | ||||
| 1691 | : $cv | ||||
| 1692 | ? B::safename($cv->NAME_HEK || $cv->GV->NAME) | ||||
| 1693 | : $gv->SAFENAME; | ||||
| 1694 | if ($stash eq 'main' && $name =~ /^::/) { | ||||
| 1695 | $stash = '::'; | ||||
| 1696 | } | ||||
| 1697 | elsif (($stash eq 'main' | ||||
| 1698 | && ($globalnames{$name} || $name =~ /^[^A-Za-z_:]/)) | ||||
| 1699 | or ($stash eq $self->{'curstash'} && !$globalnames{$name} | ||||
| 1700 | && ($stash eq 'main' || $name !~ /::/)) | ||||
| 1701 | ) | ||||
| 1702 | { | ||||
| 1703 | $stash = ""; | ||||
| 1704 | } else { | ||||
| 1705 | $stash = $stash . "::"; | ||||
| 1706 | } | ||||
| 1707 | if (!$raw and $name =~ /^(\^..|{)/) { | ||||
| 1708 | $name = "{$name}"; # ${^WARNING_BITS}, etc and ${ | ||||
| 1709 | } | ||||
| 1710 | return $stash . $name; | ||||
| 1711 | } | ||||
| 1712 | |||||
| 1713 | # Return the name to use for a stash variable. | ||||
| 1714 | # If a lexical with the same name is in scope, or | ||||
| 1715 | # if strictures are enabled, it may need to be | ||||
| 1716 | # fully-qualified. | ||||
| 1717 | sub stash_variable { | ||||
| 1718 | my ($self, $prefix, $name, $cx) = @_; | ||||
| 1719 | |||||
| 1720 | return "$prefix$name" if $name =~ /::/; | ||||
| 1721 | |||||
| 1722 | unless ($prefix eq '$' || $prefix eq '@' || $prefix eq '&' || #' | ||||
| 1723 | $prefix eq '%' || $prefix eq '$#') { | ||||
| 1724 | return "$prefix$name"; | ||||
| 1725 | } | ||||
| 1726 | |||||
| 1727 | if ($name =~ /^[^[:alpha:]_+-]$/) { | ||||
| 1728 | if (defined $cx && $cx == 26) { | ||||
| 1729 | if ($prefix eq '@') { | ||||
| 1730 | return "$prefix\{$name}"; | ||||
| 1731 | } | ||||
| 1732 | elsif ($name eq '#') { return '${#}' } # "${#}a" vs "$#a" | ||||
| 1733 | } | ||||
| 1734 | if ($prefix eq '$#') { | ||||
| 1735 | return "\$#{$name}"; | ||||
| 1736 | } | ||||
| 1737 | } | ||||
| 1738 | |||||
| 1739 | return $prefix . $self->maybe_qualify($prefix, $name); | ||||
| 1740 | } | ||||
| 1741 | |||||
| 1742 | 1 | 9µs | my %unctrl = # portable to EBCDIC | ||
| 1743 | ( | ||||
| 1744 | "\c@" => '@', # unused | ||||
| 1745 | "\cA" => 'A', | ||||
| 1746 | "\cB" => 'B', | ||||
| 1747 | "\cC" => 'C', | ||||
| 1748 | "\cD" => 'D', | ||||
| 1749 | "\cE" => 'E', | ||||
| 1750 | "\cF" => 'F', | ||||
| 1751 | "\cG" => 'G', | ||||
| 1752 | "\cH" => 'H', | ||||
| 1753 | "\cI" => 'I', | ||||
| 1754 | "\cJ" => 'J', | ||||
| 1755 | "\cK" => 'K', | ||||
| 1756 | "\cL" => 'L', | ||||
| 1757 | "\cM" => 'M', | ||||
| 1758 | "\cN" => 'N', | ||||
| 1759 | "\cO" => 'O', | ||||
| 1760 | "\cP" => 'P', | ||||
| 1761 | "\cQ" => 'Q', | ||||
| 1762 | "\cR" => 'R', | ||||
| 1763 | "\cS" => 'S', | ||||
| 1764 | "\cT" => 'T', | ||||
| 1765 | "\cU" => 'U', | ||||
| 1766 | "\cV" => 'V', | ||||
| 1767 | "\cW" => 'W', | ||||
| 1768 | "\cX" => 'X', | ||||
| 1769 | "\cY" => 'Y', | ||||
| 1770 | "\cZ" => 'Z', | ||||
| 1771 | "\c[" => '[', # unused | ||||
| 1772 | "\c\\" => '\\', # unused | ||||
| 1773 | "\c]" => ']', # unused | ||||
| 1774 | "\c_" => '_', # unused | ||||
| 1775 | ); | ||||
| 1776 | |||||
| 1777 | # Return just the name, without the prefix. It may be returned as a quoted | ||||
| 1778 | # string. The second return value is a boolean indicating that. | ||||
| 1779 | sub stash_variable_name { | ||||
| 1780 | my($self, $prefix, $gv) = @_; | ||||
| 1781 | my $name = $self->gv_name($gv, 1); | ||||
| 1782 | $name = $self->maybe_qualify($prefix,$name); | ||||
| 1783 | if ($name =~ /^(?:\S|(?!\d)[\ca-\cz]?(?:\w|::)*|\d+)\z/) { | ||||
| 1784 | $name =~ s/^([\ca-\cz])/'^' . $unctrl{$1}/e; | ||||
| 1785 | $name =~ /^(\^..|{)/ and $name = "{$name}"; | ||||
| 1786 | return $name, 0; # not quoted | ||||
| 1787 | } | ||||
| 1788 | else { | ||||
| 1789 | single_delim("q", "'", $name, $self), 1; | ||||
| 1790 | } | ||||
| 1791 | } | ||||
| 1792 | |||||
| 1793 | sub maybe_qualify { | ||||
| 1794 | my ($self,$prefix,$name) = @_; | ||||
| 1795 | my $v = ($prefix eq '$#' ? '@' : $prefix) . $name; | ||||
| 1796 | return $name if !$prefix || $name =~ /::/; | ||||
| 1797 | return $self->{'curstash'}.'::'. $name | ||||
| 1798 | if | ||||
| 1799 | $name =~ /^(?!\d)\w/ # alphabetic | ||||
| 1800 | && $v !~ /^\$[ab]\z/ # not $a or $b | ||||
| 1801 | && !$globalnames{$name} # not a global name | ||||
| 1802 | && $self->{hints} & $strict_bits{vars} # strict vars | ||||
| 1803 | && !$self->lex_in_scope($v,1) # no "our" | ||||
| 1804 | or $self->lex_in_scope($v); # conflicts with "my" variable | ||||
| 1805 | return $name; | ||||
| 1806 | } | ||||
| 1807 | |||||
| 1808 | sub lex_in_scope { | ||||
| 1809 | my ($self, $name, $our) = @_; | ||||
| 1810 | substr $name, 0, 0, = $our ? 'o' : 'm'; # our/my | ||||
| 1811 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
| 1812 | |||||
| 1813 | return 0 if !defined($self->{'curcop'}); | ||||
| 1814 | my $seq = $self->{'curcop'}->cop_seq; | ||||
| 1815 | return 0 if !exists $self->{'curcvlex'}{$name}; | ||||
| 1816 | for my $a (@{$self->{'curcvlex'}{$name}}) { | ||||
| 1817 | my ($st, $en) = @$a; | ||||
| 1818 | return 1 if $seq > $st && $seq <= $en; | ||||
| 1819 | } | ||||
| 1820 | return 0; | ||||
| 1821 | } | ||||
| 1822 | |||||
| 1823 | sub populate_curcvlex { | ||||
| 1824 | my $self = shift; | ||||
| 1825 | for (my $cv = $self->{'curcv'}; class($cv) eq "CV"; $cv = $cv->OUTSIDE) { | ||||
| 1826 | my $padlist = $cv->PADLIST; | ||||
| 1827 | # an undef CV still in lexical chain | ||||
| 1828 | next if class($padlist) eq "SPECIAL"; | ||||
| 1829 | my @padlist = $padlist->ARRAY; | ||||
| 1830 | my @ns = $padlist[0]->ARRAY; | ||||
| 1831 | |||||
| 1832 | for (my $i=0; $i<@ns; ++$i) { | ||||
| 1833 | next if class($ns[$i]) eq "SPECIAL"; | ||||
| 1834 | if (class($ns[$i]) eq "PV") { | ||||
| 1835 | # Probably that pesky lexical @_ | ||||
| 1836 | next; | ||||
| 1837 | } | ||||
| 1838 | my $name = $ns[$i]->PVX; | ||||
| 1839 | next unless defined $name; | ||||
| 1840 | my ($seq_st, $seq_en) = | ||||
| 1841 | ($ns[$i]->FLAGS & SVf_FAKE) | ||||
| 1842 | ? (0, 999999) | ||||
| 1843 | : ($ns[$i]->COP_SEQ_RANGE_LOW, $ns[$i]->COP_SEQ_RANGE_HIGH); | ||||
| 1844 | |||||
| 1845 | push @{$self->{'curcvlex'}{ | ||||
| 1846 | ($ns[$i]->FLAGS & SVpad_OUR ? 'o' : 'm') . $name | ||||
| 1847 | }}, [$seq_st, $seq_en, $ns[$i]]; | ||||
| 1848 | } | ||||
| 1849 | } | ||||
| 1850 | } | ||||
| 1851 | |||||
| 1852 | sub find_scope_st { ((find_scope(@_))[0]); } | ||||
| 1853 | sub find_scope_en { ((find_scope(@_))[1]); } | ||||
| 1854 | |||||
| 1855 | # Recurses down the tree, looking for pad variable introductions and COPs | ||||
| 1856 | sub find_scope { | ||||
| 1857 | my ($self, $op, $scope_st, $scope_en) = @_; | ||||
| 1858 | carp("Undefined op in find_scope") if !defined $op; | ||||
| 1859 | return ($scope_st, $scope_en) unless $op->flags & OPf_KIDS; | ||||
| 1860 | |||||
| 1861 | my @queue = ($op); | ||||
| 1862 | while(my $op = shift @queue ) { | ||||
| 1863 | for (my $o=$op->first; $$o; $o=$o->sibling) { | ||||
| 1864 | if ($o->name =~ /^pad.v$/ && $o->private & OPpLVAL_INTRO) { | ||||
| 1865 | my $s = int($self->padname_sv($o->targ)->COP_SEQ_RANGE_LOW); | ||||
| 1866 | my $e = $self->padname_sv($o->targ)->COP_SEQ_RANGE_HIGH; | ||||
| 1867 | $scope_st = $s if !defined($scope_st) || $s < $scope_st; | ||||
| 1868 | $scope_en = $e if !defined($scope_en) || $e > $scope_en; | ||||
| 1869 | return ($scope_st, $scope_en); | ||||
| 1870 | } | ||||
| 1871 | elsif (is_state($o)) { | ||||
| 1872 | my $c = $o->cop_seq; | ||||
| 1873 | $scope_st = $c if !defined($scope_st) || $c < $scope_st; | ||||
| 1874 | $scope_en = $c if !defined($scope_en) || $c > $scope_en; | ||||
| 1875 | return ($scope_st, $scope_en); | ||||
| 1876 | } | ||||
| 1877 | elsif ($o->flags & OPf_KIDS) { | ||||
| 1878 | unshift (@queue, $o); | ||||
| 1879 | } | ||||
| 1880 | } | ||||
| 1881 | } | ||||
| 1882 | |||||
| 1883 | return ($scope_st, $scope_en); | ||||
| 1884 | } | ||||
| 1885 | |||||
| 1886 | # Returns a list of subs which should be inserted before the COP | ||||
| 1887 | sub cop_subs { | ||||
| 1888 | my ($self, $op, $out_seq) = @_; | ||||
| 1889 | my $seq = $op->cop_seq; | ||||
| 1890 | if ($] < 5.021006) { | ||||
| 1891 | # If we have nephews, then our sequence number indicates | ||||
| 1892 | # the cop_seq of the end of some sort of scope. | ||||
| 1893 | if (class($op->sibling) ne "NULL" && $op->sibling->flags & OPf_KIDS | ||||
| 1894 | and my $nseq = $self->find_scope_st($op->sibling) ) { | ||||
| 1895 | $seq = $nseq; | ||||
| 1896 | } | ||||
| 1897 | } | ||||
| 1898 | $seq = $out_seq if defined($out_seq) && $out_seq < $seq; | ||||
| 1899 | return $self->seq_subs($seq); | ||||
| 1900 | } | ||||
| 1901 | |||||
| 1902 | sub seq_subs { | ||||
| 1903 | my ($self, $seq) = @_; | ||||
| 1904 | my @text; | ||||
| 1905 | #push @text, "# ($seq)\n"; | ||||
| 1906 | |||||
| 1907 | return "" if !defined $seq; | ||||
| 1908 | my @pending; | ||||
| 1909 | while (scalar(@{$self->{'subs_todo'}}) | ||||
| 1910 | and $seq > $self->{'subs_todo'}[0][0]) { | ||||
| 1911 | my $cv = $self->{'subs_todo'}[0][1]; | ||||
| 1912 | # Skip the OUTSIDE check for lexical subs. We may be deparsing a | ||||
| 1913 | # cloned anon sub with lexical subs declared in it, in which case | ||||
| 1914 | # the OUTSIDE pointer points to the anon protosub. | ||||
| 1915 | my $lexical = ref $self->{'subs_todo'}[0][3]; | ||||
| 1916 | my $outside = !$lexical && $cv && $cv->OUTSIDE; | ||||
| 1917 | if (!$lexical and $cv | ||||
| 1918 | and ${$cv->OUTSIDE || \0} != ${$self->{'curcv'}}) | ||||
| 1919 | { | ||||
| 1920 | push @pending, shift @{$self->{'subs_todo'}}; | ||||
| 1921 | next; | ||||
| 1922 | } | ||||
| 1923 | push @text, $self->next_todo; | ||||
| 1924 | } | ||||
| 1925 | unshift @{$self->{'subs_todo'}}, @pending; | ||||
| 1926 | return @text; | ||||
| 1927 | } | ||||
| 1928 | |||||
| 1929 | sub _features_from_bundle { | ||||
| 1930 | my ($hints, $hh) = @_; | ||||
| 1931 | foreach (@{$feature::feature_bundle{@feature::hint_bundles[$hints >> $feature::hint_shift]}}) { | ||||
| 1932 | $hh->{$feature::feature{$_}} = 1; | ||||
| 1933 | } | ||||
| 1934 | return $hh; | ||||
| 1935 | } | ||||
| 1936 | |||||
| 1937 | # Notice how subs and formats are inserted between statements here; | ||||
| 1938 | # also $[ assignments and pragmas. | ||||
| 1939 | sub pp_nextstate { | ||||
| 1940 | my $self = shift; | ||||
| 1941 | my($op, $cx) = @_; | ||||
| 1942 | $self->{'curcop'} = $op; | ||||
| 1943 | my @text; | ||||
| 1944 | push @text, $self->cop_subs($op); | ||||
| 1945 | if (@text) { | ||||
| 1946 | # Special marker to swallow up the semicolon | ||||
| 1947 | push @text, "\cK"; | ||||
| 1948 | } | ||||
| 1949 | my $stash = $op->stashpv; | ||||
| 1950 | if ($stash ne $self->{'curstash'}) { | ||||
| 1951 | push @text, $self->keyword("package") . " $stash;\n"; | ||||
| 1952 | $self->{'curstash'} = $stash; | ||||
| 1953 | } | ||||
| 1954 | |||||
| 1955 | if (OPpCONST_ARYBASE && $self->{'arybase'} != $op->arybase) { | ||||
| 1956 | push @text, '$[ = '. $op->arybase .";\n"; | ||||
| 1957 | $self->{'arybase'} = $op->arybase; | ||||
| 1958 | } | ||||
| 1959 | |||||
| 1960 | my $warnings = $op->warnings; | ||||
| 1961 | my $warning_bits; | ||||
| 1962 | if ($warnings->isa("B::SPECIAL") && $$warnings == 4) { | ||||
| 1963 | $warning_bits = $warnings::Bits{"all"} & WARN_MASK; | ||||
| 1964 | } | ||||
| 1965 | elsif ($warnings->isa("B::SPECIAL") && $$warnings == 5) { | ||||
| 1966 | $warning_bits = $warnings::NONE; | ||||
| 1967 | } | ||||
| 1968 | elsif ($warnings->isa("B::SPECIAL")) { | ||||
| 1969 | $warning_bits = undef; | ||||
| 1970 | } | ||||
| 1971 | else { | ||||
| 1972 | $warning_bits = $warnings->PV & WARN_MASK; | ||||
| 1973 | } | ||||
| 1974 | |||||
| 1975 | if (defined ($warning_bits) and | ||||
| 1976 | !defined($self->{warnings}) || $self->{'warnings'} ne $warning_bits) { | ||||
| 1977 | push @text, | ||||
| 1978 | $self->declare_warnings($self->{'warnings'}, $warning_bits); | ||||
| 1979 | $self->{'warnings'} = $warning_bits; | ||||
| 1980 | } | ||||
| 1981 | |||||
| 1982 | my $hints = $] < 5.008009 ? $op->private : $op->hints; | ||||
| 1983 | my $old_hints = $self->{'hints'}; | ||||
| 1984 | if ($self->{'hints'} != $hints) { | ||||
| 1985 | push @text, $self->declare_hints($self->{'hints'}, $hints); | ||||
| 1986 | $self->{'hints'} = $hints; | ||||
| 1987 | } | ||||
| 1988 | |||||
| 1989 | my $newhh; | ||||
| 1990 | if ($] > 5.009) { | ||||
| 1991 | $newhh = $op->hints_hash->HASH; | ||||
| 1992 | } | ||||
| 1993 | |||||
| 1994 | if ($] >= 5.015006) { | ||||
| 1995 | # feature bundle hints | ||||
| 1996 | my $from = $old_hints & $feature::hint_mask; | ||||
| 1997 | my $to = $ hints & $feature::hint_mask; | ||||
| 1998 | if ($from != $to) { | ||||
| 1999 | if ($to == $feature::hint_mask) { | ||||
| 2000 | if ($self->{'hinthash'}) { | ||||
| 2001 | delete $self->{'hinthash'}{$_} | ||||
| 2002 | for grep /^feature_/, keys %{$self->{'hinthash'}}; | ||||
| 2003 | } | ||||
| 2004 | else { $self->{'hinthash'} = {} } | ||||
| 2005 | $self->{'hinthash'} | ||||
| 2006 | = _features_from_bundle($from, $self->{'hinthash'}); | ||||
| 2007 | } | ||||
| 2008 | else { | ||||
| 2009 | my $bundle = | ||||
| 2010 | $feature::hint_bundles[$to >> $feature::hint_shift]; | ||||
| 2011 | $bundle =~ s/(\d[13579])\z/$1+1/e; # 5.11 => 5.12 | ||||
| 2012 | push @text, | ||||
| 2013 | $self->keyword("no") . " feature ':all';\n", | ||||
| 2014 | $self->keyword("use") . " feature ':$bundle';\n"; | ||||
| 2015 | } | ||||
| 2016 | } | ||||
| 2017 | } | ||||
| 2018 | |||||
| 2019 | if ($] > 5.009) { | ||||
| 2020 | push @text, $self->declare_hinthash( | ||||
| 2021 | $self->{'hinthash'}, $newhh, | ||||
| 2022 | $self->{indent_size}, $self->{hints}, | ||||
| 2023 | ); | ||||
| 2024 | $self->{'hinthash'} = $newhh; | ||||
| 2025 | } | ||||
| 2026 | |||||
| 2027 | # This should go after of any branches that add statements, to | ||||
| 2028 | # increase the chances that it refers to the same line it did in | ||||
| 2029 | # the original program. | ||||
| 2030 | if ($self->{'linenums'} && $cx != .5) { # $cx == .5 means in a format | ||||
| 2031 | push @text, "\f#line " . $op->line . | ||||
| 2032 | ' "' . $op->file, qq'"\n'; | ||||
| 2033 | } | ||||
| 2034 | |||||
| 2035 | push @text, $op->label . ": " if $op->label; | ||||
| 2036 | |||||
| 2037 | return join("", @text); | ||||
| 2038 | } | ||||
| 2039 | |||||
| 2040 | sub declare_warnings { | ||||
| 2041 | my ($self, $from, $to) = @_; | ||||
| 2042 | if (($to & WARN_MASK) eq (warnings::bits("all") & WARN_MASK)) { | ||||
| 2043 | return $self->keyword("use") . " warnings;\n"; | ||||
| 2044 | } | ||||
| 2045 | elsif (($to & WARN_MASK) eq ("\0"x length($to) & WARN_MASK)) { | ||||
| 2046 | return $self->keyword("no") . " warnings;\n"; | ||||
| 2047 | } | ||||
| 2048 | return "BEGIN {\${^WARNING_BITS} = \"" | ||||
| 2049 | . join("", map { sprintf("\\x%02x", ord $_) } split "", $to) | ||||
| 2050 | . "\"}\n\cK"; | ||||
| 2051 | } | ||||
| 2052 | |||||
| 2053 | sub declare_hints { | ||||
| 2054 | my ($self, $from, $to) = @_; | ||||
| 2055 | my $use = $to & ~$from; | ||||
| 2056 | my $no = $from & ~$to; | ||||
| 2057 | my $decls = ""; | ||||
| 2058 | for my $pragma (hint_pragmas($use)) { | ||||
| 2059 | $decls .= $self->keyword("use") . " $pragma;\n"; | ||||
| 2060 | } | ||||
| 2061 | for my $pragma (hint_pragmas($no)) { | ||||
| 2062 | $decls .= $self->keyword("no") . " $pragma;\n"; | ||||
| 2063 | } | ||||
| 2064 | return $decls; | ||||
| 2065 | } | ||||
| 2066 | |||||
| 2067 | # Internal implementation hints that the core sets automatically, so don't need | ||||
| 2068 | # (or want) to be passed back to the user | ||||
| 2069 | 1 | 3µs | my %ignored_hints = ( | ||
| 2070 | 'open<' => 1, | ||||
| 2071 | 'open>' => 1, | ||||
| 2072 | ':' => 1, | ||||
| 2073 | 'strict/refs' => 1, | ||||
| 2074 | 'strict/subs' => 1, | ||||
| 2075 | 'strict/vars' => 1, | ||||
| 2076 | ); | ||||
| 2077 | |||||
| 2078 | 1 | 100ns | my %rev_feature; | ||
| 2079 | |||||
| 2080 | sub declare_hinthash { | ||||
| 2081 | my ($self, $from, $to, $indent, $hints) = @_; | ||||
| 2082 | my $doing_features = | ||||
| 2083 | ($hints & $feature::hint_mask) == $feature::hint_mask; | ||||
| 2084 | my @decls; | ||||
| 2085 | my @features; | ||||
| 2086 | my @unfeatures; # bugs? | ||||
| 2087 | for my $key (sort keys %$to) { | ||||
| 2088 | next if $ignored_hints{$key}; | ||||
| 2089 | my $is_feature = $key =~ /^feature_/ && $^V ge 5.15.6; | ||||
| 2090 | next if $is_feature and not $doing_features; | ||||
| 2091 | if (!exists $from->{$key} or $from->{$key} ne $to->{$key}) { | ||||
| 2092 | push(@features, $key), next if $is_feature; | ||||
| 2093 | push @decls, | ||||
| 2094 | qq(\$^H{) . single_delim("q", "'", $key, $self) . qq(} = ) | ||||
| 2095 | . ( | ||||
| 2096 | defined $to->{$key} | ||||
| 2097 | ? single_delim("q", "'", $to->{$key}, $self) | ||||
| 2098 | : 'undef' | ||||
| 2099 | ) | ||||
| 2100 | . qq(;); | ||||
| 2101 | } | ||||
| 2102 | } | ||||
| 2103 | for my $key (sort keys %$from) { | ||||
| 2104 | next if $ignored_hints{$key}; | ||||
| 2105 | my $is_feature = $key =~ /^feature_/ && $^V ge 5.15.6; | ||||
| 2106 | next if $is_feature and not $doing_features; | ||||
| 2107 | if (!exists $to->{$key}) { | ||||
| 2108 | push(@unfeatures, $key), next if $is_feature; | ||||
| 2109 | push @decls, qq(delete \$^H{'$key'};); | ||||
| 2110 | } | ||||
| 2111 | } | ||||
| 2112 | my @ret; | ||||
| 2113 | if (@features || @unfeatures) { | ||||
| 2114 | if (!%rev_feature) { %rev_feature = reverse %feature::feature } | ||||
| 2115 | } | ||||
| 2116 | if (@features) { | ||||
| 2117 | push @ret, $self->keyword("use") . " feature " | ||||
| 2118 | . join(", ", map "'$rev_feature{$_}'", @features) . ";\n"; | ||||
| 2119 | } | ||||
| 2120 | if (@unfeatures) { | ||||
| 2121 | push @ret, $self->keyword("no") . " feature " | ||||
| 2122 | . join(", ", map "'$rev_feature{$_}'", @unfeatures) | ||||
| 2123 | . ";\n"; | ||||
| 2124 | } | ||||
| 2125 | @decls and | ||||
| 2126 | push @ret, | ||||
| 2127 | join("\n" . (" " x $indent), "BEGIN {", @decls) . "\n}\n\cK"; | ||||
| 2128 | return @ret; | ||||
| 2129 | } | ||||
| 2130 | |||||
| 2131 | sub hint_pragmas { | ||||
| 2132 | my ($bits) = @_; | ||||
| 2133 | my (@pragmas, @strict); | ||||
| 2134 | push @pragmas, "integer" if $bits & 0x1; | ||||
| 2135 | for (sort keys %strict_bits) { | ||||
| 2136 | push @strict, "'$_'" if $bits & $strict_bits{$_}; | ||||
| 2137 | } | ||||
| 2138 | if (@strict == keys %strict_bits) { | ||||
| 2139 | push @pragmas, "strict"; | ||||
| 2140 | } | ||||
| 2141 | elsif (@strict) { | ||||
| 2142 | push @pragmas, "strict " . join ', ', @strict; | ||||
| 2143 | } | ||||
| 2144 | push @pragmas, "bytes" if $bits & 0x8; | ||||
| 2145 | return @pragmas; | ||||
| 2146 | } | ||||
| 2147 | |||||
| 2148 | sub pp_dbstate { pp_nextstate(@_) } | ||||
| 2149 | sub pp_setstate { pp_nextstate(@_) } | ||||
| 2150 | |||||
| 2151 | sub pp_unstack { return "" } # see also leaveloop | ||||
| 2152 | |||||
| 2153 | 1 | 3µs | my %feature_keywords = ( | ||
| 2154 | # keyword => 'feature', | ||||
| 2155 | state => 'state', | ||||
| 2156 | say => 'say', | ||||
| 2157 | given => 'switch', | ||||
| 2158 | when => 'switch', | ||||
| 2159 | default => 'switch', | ||||
| 2160 | break => 'switch', | ||||
| 2161 | evalbytes=>'evalbytes', | ||||
| 2162 | __SUB__ => '__SUB__', | ||||
| 2163 | fc => 'fc', | ||||
| 2164 | ); | ||||
| 2165 | |||||
| 2166 | # keywords that are strong and also have a prototype | ||||
| 2167 | # | ||||
| 2168 | 1 | 2µs | my %strong_proto_keywords = map { $_ => 1 } qw( | ||
| 2169 | pos | ||||
| 2170 | prototype | ||||
| 2171 | scalar | ||||
| 2172 | study | ||||
| 2173 | undef | ||||
| 2174 | ); | ||||
| 2175 | |||||
| 2176 | sub feature_enabled { | ||||
| 2177 | my($self,$name) = @_; | ||||
| 2178 | my $hh; | ||||
| 2179 | my $hints = $self->{hints} & $feature::hint_mask; | ||||
| 2180 | if ($hints && $hints != $feature::hint_mask) { | ||||
| 2181 | $hh = _features_from_bundle($hints); | ||||
| 2182 | } | ||||
| 2183 | elsif ($hints) { $hh = $self->{'hinthash'} } | ||||
| 2184 | return $hh && $hh->{"feature_$feature_keywords{$name}"} | ||||
| 2185 | } | ||||
| 2186 | |||||
| 2187 | sub keyword { | ||||
| 2188 | my $self = shift; | ||||
| 2189 | my $name = shift; | ||||
| 2190 | return $name if $name =~ /^CORE::/; # just in case | ||||
| 2191 | if (exists $feature_keywords{$name}) { | ||||
| 2192 | return "CORE::$name" if not $self->feature_enabled($name); | ||||
| 2193 | } | ||||
| 2194 | # This sub may be called for a program that has no nextstate ops. In | ||||
| 2195 | # that case we may have a lexical sub named no/use/sub in scope but | ||||
| 2196 | # but $self->lex_in_scope will return false because it depends on the | ||||
| 2197 | # current nextstate op. So we need this alternate method if there is | ||||
| 2198 | # no current cop. | ||||
| 2199 | if (!$self->{'curcop'}) { | ||||
| 2200 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
| 2201 | return "CORE::$name" if exists $self->{'curcvlex'}{"m&$name"} | ||||
| 2202 | || exists $self->{'curcvlex'}{"o&$name"}; | ||||
| 2203 | } elsif ($self->lex_in_scope("&$name") | ||||
| 2204 | || $self->lex_in_scope("&$name", 1)) { | ||||
| 2205 | return "CORE::$name"; | ||||
| 2206 | } | ||||
| 2207 | if ($strong_proto_keywords{$name} | ||||
| 2208 | || ($name !~ /^(?:chom?p|do|exec|glob|s(?:elect|ystem))\z/ | ||||
| 2209 | && !defined eval{prototype "CORE::$name"}) | ||||
| 2210 | ) { return $name } | ||||
| 2211 | if ( | ||||
| 2212 | exists $self->{subs_declared}{$name} | ||||
| 2213 | or | ||||
| 2214 | exists &{"$self->{curstash}::$name"} | ||||
| 2215 | ) { | ||||
| 2216 | return "CORE::$name" | ||||
| 2217 | } | ||||
| 2218 | return $name; | ||||
| 2219 | } | ||||
| 2220 | |||||
| 2221 | sub baseop { | ||||
| 2222 | my $self = shift; | ||||
| 2223 | my($op, $cx, $name) = @_; | ||||
| 2224 | return $self->keyword($name); | ||||
| 2225 | } | ||||
| 2226 | |||||
| 2227 | sub pp_stub { "()" } | ||||
| 2228 | sub pp_wantarray { baseop(@_, "wantarray") } | ||||
| 2229 | sub pp_fork { baseop(@_, "fork") } | ||||
| 2230 | sub pp_wait { maybe_targmy(@_, \&baseop, "wait") } | ||||
| 2231 | sub pp_getppid { maybe_targmy(@_, \&baseop, "getppid") } | ||||
| 2232 | sub pp_time { maybe_targmy(@_, \&baseop, "time") } | ||||
| 2233 | sub pp_tms { baseop(@_, "times") } | ||||
| 2234 | sub pp_ghostent { baseop(@_, "gethostent") } | ||||
| 2235 | sub pp_gnetent { baseop(@_, "getnetent") } | ||||
| 2236 | sub pp_gprotoent { baseop(@_, "getprotoent") } | ||||
| 2237 | sub pp_gservent { baseop(@_, "getservent") } | ||||
| 2238 | sub pp_ehostent { baseop(@_, "endhostent") } | ||||
| 2239 | sub pp_enetent { baseop(@_, "endnetent") } | ||||
| 2240 | sub pp_eprotoent { baseop(@_, "endprotoent") } | ||||
| 2241 | sub pp_eservent { baseop(@_, "endservent") } | ||||
| 2242 | sub pp_gpwent { baseop(@_, "getpwent") } | ||||
| 2243 | sub pp_spwent { baseop(@_, "setpwent") } | ||||
| 2244 | sub pp_epwent { baseop(@_, "endpwent") } | ||||
| 2245 | sub pp_ggrent { baseop(@_, "getgrent") } | ||||
| 2246 | sub pp_sgrent { baseop(@_, "setgrent") } | ||||
| 2247 | sub pp_egrent { baseop(@_, "endgrent") } | ||||
| 2248 | sub pp_getlogin { baseop(@_, "getlogin") } | ||||
| 2249 | |||||
| 2250 | sub POSTFIX () { 1 } | ||||
| 2251 | |||||
| 2252 | # I couldn't think of a good short name, but this is the category of | ||||
| 2253 | # symbolic unary operators with interesting precedence | ||||
| 2254 | |||||
| 2255 | sub pfixop { | ||||
| 2256 | my $self = shift; | ||||
| 2257 | my($op, $cx, $name, $prec, $flags) = (@_, 0); | ||||
| 2258 | my $kid = $op->first; | ||||
| 2259 | $kid = $self->deparse($kid, $prec); | ||||
| 2260 | return $self->maybe_parens(($flags & POSTFIX) | ||||
| 2261 | ? "$kid$name" | ||||
| 2262 | # avoid confusion with filetests | ||||
| 2263 | : $name eq '-' | ||||
| 2264 | && $kid =~ /^[a-zA-Z](?!\w)/ | ||||
| 2265 | ? "$name($kid)" | ||||
| 2266 | : "$name$kid", | ||||
| 2267 | $cx, $prec); | ||||
| 2268 | } | ||||
| 2269 | |||||
| 2270 | sub pp_preinc { pfixop(@_, "++", 23) } | ||||
| 2271 | sub pp_predec { pfixop(@_, "--", 23) } | ||||
| 2272 | sub pp_postinc { maybe_targmy(@_, \&pfixop, "++", 23, POSTFIX) } | ||||
| 2273 | sub pp_postdec { maybe_targmy(@_, \&pfixop, "--", 23, POSTFIX) } | ||||
| 2274 | sub pp_i_preinc { pfixop(@_, "++", 23) } | ||||
| 2275 | sub pp_i_predec { pfixop(@_, "--", 23) } | ||||
| 2276 | sub pp_i_postinc { maybe_targmy(@_, \&pfixop, "++", 23, POSTFIX) } | ||||
| 2277 | sub pp_i_postdec { maybe_targmy(@_, \&pfixop, "--", 23, POSTFIX) } | ||||
| 2278 | sub pp_complement { maybe_targmy(@_, \&pfixop, "~", 21) } | ||||
| 2279 | 1 | 1µs | *pp_ncomplement = *pp_complement; | ||
| 2280 | sub pp_scomplement { maybe_targmy(@_, \&pfixop, "~.", 21) } | ||||
| 2281 | |||||
| 2282 | sub pp_negate { maybe_targmy(@_, \&real_negate) } | ||||
| 2283 | sub real_negate { | ||||
| 2284 | my $self = shift; | ||||
| 2285 | my($op, $cx) = @_; | ||||
| 2286 | if ($op->first->name =~ /^(i_)?negate$/) { | ||||
| 2287 | # avoid --$x | ||||
| 2288 | $self->pfixop($op, $cx, "-", 21.5); | ||||
| 2289 | } else { | ||||
| 2290 | $self->pfixop($op, $cx, "-", 21); | ||||
| 2291 | } | ||||
| 2292 | } | ||||
| 2293 | sub pp_i_negate { pp_negate(@_) } | ||||
| 2294 | |||||
| 2295 | sub pp_not { | ||||
| 2296 | my $self = shift; | ||||
| 2297 | my($op, $cx) = @_; | ||||
| 2298 | if ($cx <= 4) { | ||||
| 2299 | $self->listop($op, $cx, "not", $op->first); | ||||
| 2300 | } else { | ||||
| 2301 | $self->pfixop($op, $cx, "!", 21); | ||||
| 2302 | } | ||||
| 2303 | } | ||||
| 2304 | |||||
| 2305 | sub unop { | ||||
| 2306 | my $self = shift; | ||||
| 2307 | my($op, $cx, $name, $nollafr) = @_; | ||||
| 2308 | my $kid; | ||||
| 2309 | if ($op->flags & OPf_KIDS) { | ||||
| 2310 | $kid = $op->first; | ||||
| 2311 | if (not $name) { | ||||
| 2312 | # this deals with 'boolkeys' right now | ||||
| 2313 | return $self->deparse($kid,$cx); | ||||
| 2314 | } | ||||
| 2315 | my $builtinname = $name; | ||||
| 2316 | $builtinname =~ /^CORE::/ or $builtinname = "CORE::$name"; | ||||
| 2317 | if (defined prototype($builtinname) | ||||
| 2318 | && $builtinname ne 'CORE::readline' | ||||
| 2319 | && prototype($builtinname) =~ /^;?\*/ | ||||
| 2320 | && $kid->name eq "rv2gv") { | ||||
| 2321 | $kid = $kid->first; | ||||
| 2322 | } | ||||
| 2323 | |||||
| 2324 | if ($nollafr) { | ||||
| 2325 | if (($kid = $self->deparse($kid, 16)) !~ s/^\cS//) { | ||||
| 2326 | # require foo() is a syntax error. | ||||
| 2327 | $kid =~ /^(?!\d)\w/ and $kid = "($kid)"; | ||||
| 2328 | } | ||||
| 2329 | return $self->maybe_parens( | ||||
| 2330 | $self->keyword($name) . " $kid", $cx, 16 | ||||
| 2331 | ); | ||||
| 2332 | } | ||||
| 2333 | return $self->maybe_parens_unop($name, $kid, $cx); | ||||
| 2334 | } else { | ||||
| 2335 | return $self->maybe_parens( | ||||
| 2336 | $self->keyword($name) . ($op->flags & OPf_SPECIAL ? "()" : ""), | ||||
| 2337 | $cx, 16, | ||||
| 2338 | ); | ||||
| 2339 | } | ||||
| 2340 | } | ||||
| 2341 | |||||
| 2342 | sub pp_chop { maybe_targmy(@_, \&unop, "chop") } | ||||
| 2343 | sub pp_chomp { maybe_targmy(@_, \&unop, "chomp") } | ||||
| 2344 | sub pp_schop { maybe_targmy(@_, \&unop, "chop") } | ||||
| 2345 | sub pp_schomp { maybe_targmy(@_, \&unop, "chomp") } | ||||
| 2346 | sub pp_defined { unop(@_, "defined") } | ||||
| 2347 | sub pp_undef { unop(@_, "undef") } | ||||
| 2348 | sub pp_study { unop(@_, "study") } | ||||
| 2349 | sub pp_ref { unop(@_, "ref") } | ||||
| 2350 | sub pp_pos { maybe_local(@_, unop(@_, "pos")) } | ||||
| 2351 | |||||
| 2352 | sub pp_sin { maybe_targmy(@_, \&unop, "sin") } | ||||
| 2353 | sub pp_cos { maybe_targmy(@_, \&unop, "cos") } | ||||
| 2354 | sub pp_rand { maybe_targmy(@_, \&unop, "rand") } | ||||
| 2355 | sub pp_srand { unop(@_, "srand") } | ||||
| 2356 | sub pp_exp { maybe_targmy(@_, \&unop, "exp") } | ||||
| 2357 | sub pp_log { maybe_targmy(@_, \&unop, "log") } | ||||
| 2358 | sub pp_sqrt { maybe_targmy(@_, \&unop, "sqrt") } | ||||
| 2359 | sub pp_int { maybe_targmy(@_, \&unop, "int") } | ||||
| 2360 | sub pp_hex { maybe_targmy(@_, \&unop, "hex") } | ||||
| 2361 | sub pp_oct { maybe_targmy(@_, \&unop, "oct") } | ||||
| 2362 | sub pp_abs { maybe_targmy(@_, \&unop, "abs") } | ||||
| 2363 | |||||
| 2364 | sub pp_length { maybe_targmy(@_, \&unop, "length") } | ||||
| 2365 | sub pp_ord { maybe_targmy(@_, \&unop, "ord") } | ||||
| 2366 | sub pp_chr { maybe_targmy(@_, \&unop, "chr") } | ||||
| 2367 | |||||
| 2368 | sub pp_each { unop(@_, "each") } | ||||
| 2369 | sub pp_values { unop(@_, "values") } | ||||
| 2370 | sub pp_keys { unop(@_, "keys") } | ||||
| 2371 | 4 | 1.73ms | 2 | 27µs | # spent 16µs (6+10) within B::Deparse::BEGIN@2371 which was called:
# once (6µs+10µs) by YAML::XS::BEGIN@57 at line 2371 # spent 16µs making 1 call to B::Deparse::BEGIN@2371
# spent 10µs making 1 call to strict::unimport |
| 2372 | sub pp_boolkeys { | ||||
| 2373 | # no name because its an optimisation op that has no keyword | ||||
| 2374 | unop(@_,""); | ||||
| 2375 | } | ||||
| 2376 | sub pp_aeach { unop(@_, "each") } | ||||
| 2377 | sub pp_avalues { unop(@_, "values") } | ||||
| 2378 | sub pp_akeys { unop(@_, "keys") } | ||||
| 2379 | sub pp_pop { unop(@_, "pop") } | ||||
| 2380 | sub pp_shift { unop(@_, "shift") } | ||||
| 2381 | |||||
| 2382 | sub pp_caller { unop(@_, "caller") } | ||||
| 2383 | sub pp_reset { unop(@_, "reset") } | ||||
| 2384 | sub pp_exit { unop(@_, "exit") } | ||||
| 2385 | sub pp_prototype { unop(@_, "prototype") } | ||||
| 2386 | |||||
| 2387 | sub pp_close { unop(@_, "close") } | ||||
| 2388 | sub pp_fileno { unop(@_, "fileno") } | ||||
| 2389 | sub pp_umask { unop(@_, "umask") } | ||||
| 2390 | sub pp_untie { unop(@_, "untie") } | ||||
| 2391 | sub pp_tied { unop(@_, "tied") } | ||||
| 2392 | sub pp_dbmclose { unop(@_, "dbmclose") } | ||||
| 2393 | sub pp_getc { unop(@_, "getc") } | ||||
| 2394 | sub pp_eof { unop(@_, "eof") } | ||||
| 2395 | sub pp_tell { unop(@_, "tell") } | ||||
| 2396 | sub pp_getsockname { unop(@_, "getsockname") } | ||||
| 2397 | sub pp_getpeername { unop(@_, "getpeername") } | ||||
| 2398 | |||||
| 2399 | sub pp_chdir { | ||||
| 2400 | my ($self, $op, $cx) = @_; | ||||
| 2401 | if (($op->flags & (OPf_SPECIAL|OPf_KIDS)) == (OPf_SPECIAL|OPf_KIDS)) { | ||||
| 2402 | my $kw = $self->keyword("chdir"); | ||||
| 2403 | my $kid = $self->const_sv($op->first)->PV; | ||||
| 2404 | my $code = $kw | ||||
| 2405 | . ($cx >= 16 || $self->{'parens'} ? "($kid)" : " $kid"); | ||||
| 2406 | maybe_targmy(@_, sub { $_[3] }, $code); | ||||
| 2407 | } else { | ||||
| 2408 | maybe_targmy(@_, \&unop, "chdir") | ||||
| 2409 | } | ||||
| 2410 | } | ||||
| 2411 | |||||
| 2412 | sub pp_chroot { maybe_targmy(@_, \&unop, "chroot") } | ||||
| 2413 | sub pp_readlink { unop(@_, "readlink") } | ||||
| 2414 | sub pp_rmdir { maybe_targmy(@_, \&unop, "rmdir") } | ||||
| 2415 | sub pp_readdir { unop(@_, "readdir") } | ||||
| 2416 | sub pp_telldir { unop(@_, "telldir") } | ||||
| 2417 | sub pp_rewinddir { unop(@_, "rewinddir") } | ||||
| 2418 | sub pp_closedir { unop(@_, "closedir") } | ||||
| 2419 | sub pp_getpgrp { maybe_targmy(@_, \&unop, "getpgrp") } | ||||
| 2420 | sub pp_localtime { unop(@_, "localtime") } | ||||
| 2421 | sub pp_gmtime { unop(@_, "gmtime") } | ||||
| 2422 | sub pp_alarm { unop(@_, "alarm") } | ||||
| 2423 | sub pp_sleep { maybe_targmy(@_, \&unop, "sleep") } | ||||
| 2424 | |||||
| 2425 | sub pp_dofile { | ||||
| 2426 | my $code = unop(@_, "do", 1); # llafr does not apply | ||||
| 2427 | if ($code =~ s/^((?:CORE::)?do) \{/$1({/) { $code .= ')' } | ||||
| 2428 | $code; | ||||
| 2429 | } | ||||
| 2430 | sub pp_entereval { | ||||
| 2431 | unop( | ||||
| 2432 | @_, | ||||
| 2433 | $_[1]->private & OPpEVAL_BYTES ? 'evalbytes' : "eval" | ||||
| 2434 | ) | ||||
| 2435 | } | ||||
| 2436 | |||||
| 2437 | sub pp_ghbyname { unop(@_, "gethostbyname") } | ||||
| 2438 | sub pp_gnbyname { unop(@_, "getnetbyname") } | ||||
| 2439 | sub pp_gpbyname { unop(@_, "getprotobyname") } | ||||
| 2440 | sub pp_shostent { unop(@_, "sethostent") } | ||||
| 2441 | sub pp_snetent { unop(@_, "setnetent") } | ||||
| 2442 | sub pp_sprotoent { unop(@_, "setprotoent") } | ||||
| 2443 | sub pp_sservent { unop(@_, "setservent") } | ||||
| 2444 | sub pp_gpwnam { unop(@_, "getpwnam") } | ||||
| 2445 | sub pp_gpwuid { unop(@_, "getpwuid") } | ||||
| 2446 | sub pp_ggrnam { unop(@_, "getgrnam") } | ||||
| 2447 | sub pp_ggrgid { unop(@_, "getgrgid") } | ||||
| 2448 | |||||
| 2449 | sub pp_lock { unop(@_, "lock") } | ||||
| 2450 | |||||
| 2451 | sub pp_continue { unop(@_, "continue"); } | ||||
| 2452 | sub pp_break { unop(@_, "break"); } | ||||
| 2453 | |||||
| 2454 | sub givwhen { | ||||
| 2455 | my $self = shift; | ||||
| 2456 | my($op, $cx, $givwhen) = @_; | ||||
| 2457 | |||||
| 2458 | my $enterop = $op->first; | ||||
| 2459 | my ($head, $block); | ||||
| 2460 | if ($enterop->flags & OPf_SPECIAL) { | ||||
| 2461 | $head = $self->keyword("default"); | ||||
| 2462 | $block = $self->deparse($enterop->first, 0); | ||||
| 2463 | } | ||||
| 2464 | else { | ||||
| 2465 | my $cond = $enterop->first; | ||||
| 2466 | my $cond_str = $self->deparse($cond, 1); | ||||
| 2467 | $head = "$givwhen ($cond_str)"; | ||||
| 2468 | $block = $self->deparse($cond->sibling, 0); | ||||
| 2469 | } | ||||
| 2470 | |||||
| 2471 | return "$head {\n". | ||||
| 2472 | "\t$block\n". | ||||
| 2473 | "\b}\cK"; | ||||
| 2474 | } | ||||
| 2475 | |||||
| 2476 | sub pp_leavegiven { givwhen(@_, $_[0]->keyword("given")); } | ||||
| 2477 | sub pp_leavewhen { givwhen(@_, $_[0]->keyword("when")); } | ||||
| 2478 | |||||
| 2479 | sub pp_exists { | ||||
| 2480 | my $self = shift; | ||||
| 2481 | my($op, $cx) = @_; | ||||
| 2482 | my $arg; | ||||
| 2483 | my $name = $self->keyword("exists"); | ||||
| 2484 | if ($op->private & OPpEXISTS_SUB) { | ||||
| 2485 | # Checking for the existence of a subroutine | ||||
| 2486 | return $self->maybe_parens_func($name, | ||||
| 2487 | $self->pp_rv2cv($op->first, 16), $cx, 16); | ||||
| 2488 | } | ||||
| 2489 | if ($op->flags & OPf_SPECIAL) { | ||||
| 2490 | # Array element, not hash element | ||||
| 2491 | return $self->maybe_parens_func($name, | ||||
| 2492 | $self->pp_aelem($op->first, 16), $cx, 16); | ||||
| 2493 | } | ||||
| 2494 | return $self->maybe_parens_func($name, $self->pp_helem($op->first, 16), | ||||
| 2495 | $cx, 16); | ||||
| 2496 | } | ||||
| 2497 | |||||
| 2498 | sub pp_delete { | ||||
| 2499 | my $self = shift; | ||||
| 2500 | my($op, $cx) = @_; | ||||
| 2501 | my $arg; | ||||
| 2502 | my $name = $self->keyword("delete"); | ||||
| 2503 | if ($op->private & OPpSLICE) { | ||||
| 2504 | if ($op->flags & OPf_SPECIAL) { | ||||
| 2505 | # Deleting from an array, not a hash | ||||
| 2506 | return $self->maybe_parens_func($name, | ||||
| 2507 | $self->pp_aslice($op->first, 16), | ||||
| 2508 | $cx, 16); | ||||
| 2509 | } | ||||
| 2510 | return $self->maybe_parens_func($name, | ||||
| 2511 | $self->pp_hslice($op->first, 16), | ||||
| 2512 | $cx, 16); | ||||
| 2513 | } else { | ||||
| 2514 | if ($op->flags & OPf_SPECIAL) { | ||||
| 2515 | # Deleting from an array, not a hash | ||||
| 2516 | return $self->maybe_parens_func($name, | ||||
| 2517 | $self->pp_aelem($op->first, 16), | ||||
| 2518 | $cx, 16); | ||||
| 2519 | } | ||||
| 2520 | return $self->maybe_parens_func($name, | ||||
| 2521 | $self->pp_helem($op->first, 16), | ||||
| 2522 | $cx, 16); | ||||
| 2523 | } | ||||
| 2524 | } | ||||
| 2525 | |||||
| 2526 | sub pp_require { | ||||
| 2527 | my $self = shift; | ||||
| 2528 | my($op, $cx) = @_; | ||||
| 2529 | my $opname = $op->flags & OPf_SPECIAL ? 'CORE::require' : 'require'; | ||||
| 2530 | my $kid = $op->first; | ||||
| 2531 | if ($kid->name eq 'const') { | ||||
| 2532 | my $priv = $kid->private; | ||||
| 2533 | my $sv = $self->const_sv($kid); | ||||
| 2534 | my $arg; | ||||
| 2535 | if ($priv & OPpCONST_BARE) { | ||||
| 2536 | $arg = $sv->PV; | ||||
| 2537 | $arg =~ s[/][::]g; | ||||
| 2538 | $arg =~ s/\.pm//g; | ||||
| 2539 | } elsif ($priv & OPpCONST_NOVER) { | ||||
| 2540 | $opname = $self->keyword('no'); | ||||
| 2541 | $arg = $self->const($sv, 16); | ||||
| 2542 | } elsif ((my $tmp = $self->const($sv, 16)) =~ /^v/) { | ||||
| 2543 | $arg = $tmp; | ||||
| 2544 | } | ||||
| 2545 | if ($arg) { | ||||
| 2546 | return $self->maybe_parens("$opname $arg", $cx, 16); | ||||
| 2547 | } | ||||
| 2548 | } | ||||
| 2549 | $self->unop( | ||||
| 2550 | $op, $cx, | ||||
| 2551 | $opname, | ||||
| 2552 | 1, # llafr does not apply | ||||
| 2553 | ); | ||||
| 2554 | } | ||||
| 2555 | |||||
| 2556 | sub pp_scalar { | ||||
| 2557 | my $self = shift; | ||||
| 2558 | my($op, $cx) = @_; | ||||
| 2559 | my $kid = $op->first; | ||||
| 2560 | if (not null $kid->sibling) { | ||||
| 2561 | # XXX Was a here-doc | ||||
| 2562 | return $self->dquote($op); | ||||
| 2563 | } | ||||
| 2564 | $self->unop(@_, "scalar"); | ||||
| 2565 | } | ||||
| 2566 | |||||
| 2567 | |||||
| 2568 | sub padval { | ||||
| 2569 | my $self = shift; | ||||
| 2570 | my $targ = shift; | ||||
| 2571 | return $self->{'curcv'}->PADLIST->ARRAYelt(1)->ARRAYelt($targ); | ||||
| 2572 | } | ||||
| 2573 | |||||
| 2574 | sub anon_hash_or_list { | ||||
| 2575 | my $self = shift; | ||||
| 2576 | my($op, $cx) = @_; | ||||
| 2577 | |||||
| 2578 | my($pre, $post) = @{{"anonlist" => ["[","]"], | ||||
| 2579 | "anonhash" => ["{","}"]}->{$op->name}}; | ||||
| 2580 | my($expr, @exprs); | ||||
| 2581 | $op = $op->first->sibling; # skip pushmark | ||||
| 2582 | for (; !null($op); $op = $op->sibling) { | ||||
| 2583 | $expr = $self->deparse($op, 6); | ||||
| 2584 | push @exprs, $expr; | ||||
| 2585 | } | ||||
| 2586 | if ($pre eq "{" and $cx < 1) { | ||||
| 2587 | # Disambiguate that it's not a block | ||||
| 2588 | $pre = "+{"; | ||||
| 2589 | } | ||||
| 2590 | return $pre . join(", ", @exprs) . $post; | ||||
| 2591 | } | ||||
| 2592 | |||||
| 2593 | sub pp_anonlist { | ||||
| 2594 | my $self = shift; | ||||
| 2595 | my ($op, $cx) = @_; | ||||
| 2596 | if ($op->flags & OPf_SPECIAL) { | ||||
| 2597 | return $self->anon_hash_or_list($op, $cx); | ||||
| 2598 | } | ||||
| 2599 | warn "Unexpected op pp_" . $op->name() . " without OPf_SPECIAL"; | ||||
| 2600 | return 'XXX'; | ||||
| 2601 | } | ||||
| 2602 | |||||
| 2603 | 1 | 2µs | *pp_anonhash = \&pp_anonlist; | ||
| 2604 | |||||
| 2605 | sub pp_refgen { | ||||
| 2606 | my $self = shift; | ||||
| 2607 | my($op, $cx) = @_; | ||||
| 2608 | my $kid = $op->first; | ||||
| 2609 | if ($kid->name eq "null") { | ||||
| 2610 | my $anoncode = $kid = $kid->first; | ||||
| 2611 | if ($anoncode->name eq "anonconst") { | ||||
| 2612 | $anoncode = $anoncode->first->first->sibling; | ||||
| 2613 | } | ||||
| 2614 | if ($anoncode->name eq "anoncode" | ||||
| 2615 | or !null($anoncode = $kid->sibling) and | ||||
| 2616 | $anoncode->name eq "anoncode") { | ||||
| 2617 | return $self->e_anoncode({ code => $self->padval($anoncode->targ) }); | ||||
| 2618 | } elsif ($kid->name eq "pushmark") { | ||||
| 2619 | my $sib_name = $kid->sibling->name; | ||||
| 2620 | if ($sib_name eq 'entersub') { | ||||
| 2621 | my $text = $self->deparse($kid->sibling, 1); | ||||
| 2622 | # Always show parens for \(&func()), but only with -p otherwise | ||||
| 2623 | $text = "($text)" if $self->{'parens'} | ||||
| 2624 | or $kid->sibling->private & OPpENTERSUB_AMPER; | ||||
| 2625 | return "\\$text"; | ||||
| 2626 | } | ||||
| 2627 | } | ||||
| 2628 | } | ||||
| 2629 | local $self->{'in_refgen'} = 1; | ||||
| 2630 | $self->pfixop($op, $cx, "\\", 20); | ||||
| 2631 | } | ||||
| 2632 | |||||
| 2633 | sub e_anoncode { | ||||
| 2634 | my ($self, $info) = @_; | ||||
| 2635 | my $text = $self->deparse_sub($info->{code}); | ||||
| 2636 | return $self->keyword("sub") . " $text"; | ||||
| 2637 | } | ||||
| 2638 | |||||
| 2639 | sub pp_srefgen { pp_refgen(@_) } | ||||
| 2640 | |||||
| 2641 | sub pp_readline { | ||||
| 2642 | my $self = shift; | ||||
| 2643 | my($op, $cx) = @_; | ||||
| 2644 | my $kid = $op->first; | ||||
| 2645 | if (is_scalar($kid)) { | ||||
| 2646 | my $kid_deparsed = $self->deparse($kid, 1); | ||||
| 2647 | return '<<>>' if $op->flags & OPf_SPECIAL and $kid_deparsed eq 'ARGV'; | ||||
| 2648 | return "<$kid_deparsed>"; | ||||
| 2649 | } | ||||
| 2650 | return $self->unop($op, $cx, "readline"); | ||||
| 2651 | } | ||||
| 2652 | |||||
| 2653 | sub pp_rcatline { | ||||
| 2654 | my $self = shift; | ||||
| 2655 | my($op) = @_; | ||||
| 2656 | return "<" . $self->gv_name($self->gv_or_padgv($op)) . ">"; | ||||
| 2657 | } | ||||
| 2658 | |||||
| 2659 | # Unary operators that can occur as pseudo-listops inside double quotes | ||||
| 2660 | sub dq_unop { | ||||
| 2661 | my $self = shift; | ||||
| 2662 | my($op, $cx, $name, $prec, $flags) = (@_, 0, 0); | ||||
| 2663 | my $kid; | ||||
| 2664 | if ($op->flags & OPf_KIDS) { | ||||
| 2665 | $kid = $op->first; | ||||
| 2666 | # If there's more than one kid, the first is an ex-pushmark. | ||||
| 2667 | $kid = $kid->sibling if not null $kid->sibling; | ||||
| 2668 | return $self->maybe_parens_unop($name, $kid, $cx); | ||||
| 2669 | } else { | ||||
| 2670 | return $name . ($op->flags & OPf_SPECIAL ? "()" : ""); | ||||
| 2671 | } | ||||
| 2672 | } | ||||
| 2673 | |||||
| 2674 | sub pp_ucfirst { dq_unop(@_, "ucfirst") } | ||||
| 2675 | sub pp_lcfirst { dq_unop(@_, "lcfirst") } | ||||
| 2676 | sub pp_uc { dq_unop(@_, "uc") } | ||||
| 2677 | sub pp_lc { dq_unop(@_, "lc") } | ||||
| 2678 | sub pp_quotemeta { maybe_targmy(@_, \&dq_unop, "quotemeta") } | ||||
| 2679 | sub pp_fc { dq_unop(@_, "fc") } | ||||
| 2680 | |||||
| 2681 | sub loopex { | ||||
| 2682 | my $self = shift; | ||||
| 2683 | my ($op, $cx, $name) = @_; | ||||
| 2684 | if (class($op) eq "PVOP") { | ||||
| 2685 | $name .= " " . $op->pv; | ||||
| 2686 | } elsif (class($op) eq "OP") { | ||||
| 2687 | # no-op | ||||
| 2688 | } elsif (class($op) eq "UNOP") { | ||||
| 2689 | (my $kid = $self->deparse($op->first, 7)) =~ s/^\cS//; | ||||
| 2690 | # last foo() is a syntax error. | ||||
| 2691 | $kid =~ /^(?!\d)\w/ and $kid = "($kid)"; | ||||
| 2692 | $name .= " $kid"; | ||||
| 2693 | } | ||||
| 2694 | return $self->maybe_parens($name, $cx, 7); | ||||
| 2695 | } | ||||
| 2696 | |||||
| 2697 | sub pp_last { loopex(@_, "last") } | ||||
| 2698 | sub pp_next { loopex(@_, "next") } | ||||
| 2699 | sub pp_redo { loopex(@_, "redo") } | ||||
| 2700 | sub pp_goto { loopex(@_, "goto") } | ||||
| 2701 | sub pp_dump { loopex(@_, "CORE::dump") } | ||||
| 2702 | |||||
| 2703 | sub ftst { | ||||
| 2704 | my $self = shift; | ||||
| 2705 | my($op, $cx, $name) = @_; | ||||
| 2706 | if (class($op) eq "UNOP") { | ||||
| 2707 | # Genuine '-X' filetests are exempt from the LLAFR, but not | ||||
| 2708 | # l?stat() | ||||
| 2709 | if ($name =~ /^-/) { | ||||
| 2710 | (my $kid = $self->deparse($op->first, 16)) =~ s/^\cS//; | ||||
| 2711 | return $self->maybe_parens("$name $kid", $cx, 16); | ||||
| 2712 | } | ||||
| 2713 | return $self->maybe_parens_unop($name, $op->first, $cx); | ||||
| 2714 | } elsif (class($op) =~ /^(SV|PAD)OP$/) { | ||||
| 2715 | return $self->maybe_parens_func($name, $self->pp_gv($op, 1), $cx, 16); | ||||
| 2716 | } else { # I don't think baseop filetests ever survive ck_ftst, but... | ||||
| 2717 | return $name; | ||||
| 2718 | } | ||||
| 2719 | } | ||||
| 2720 | |||||
| 2721 | sub pp_lstat { ftst(@_, "lstat") } | ||||
| 2722 | sub pp_stat { ftst(@_, "stat") } | ||||
| 2723 | sub pp_ftrread { ftst(@_, "-R") } | ||||
| 2724 | sub pp_ftrwrite { ftst(@_, "-W") } | ||||
| 2725 | sub pp_ftrexec { ftst(@_, "-X") } | ||||
| 2726 | sub pp_fteread { ftst(@_, "-r") } | ||||
| 2727 | sub pp_ftewrite { ftst(@_, "-w") } | ||||
| 2728 | sub pp_fteexec { ftst(@_, "-x") } | ||||
| 2729 | sub pp_ftis { ftst(@_, "-e") } | ||||
| 2730 | sub pp_fteowned { ftst(@_, "-O") } | ||||
| 2731 | sub pp_ftrowned { ftst(@_, "-o") } | ||||
| 2732 | sub pp_ftzero { ftst(@_, "-z") } | ||||
| 2733 | sub pp_ftsize { ftst(@_, "-s") } | ||||
| 2734 | sub pp_ftmtime { ftst(@_, "-M") } | ||||
| 2735 | sub pp_ftatime { ftst(@_, "-A") } | ||||
| 2736 | sub pp_ftctime { ftst(@_, "-C") } | ||||
| 2737 | sub pp_ftsock { ftst(@_, "-S") } | ||||
| 2738 | sub pp_ftchr { ftst(@_, "-c") } | ||||
| 2739 | sub pp_ftblk { ftst(@_, "-b") } | ||||
| 2740 | sub pp_ftfile { ftst(@_, "-f") } | ||||
| 2741 | sub pp_ftdir { ftst(@_, "-d") } | ||||
| 2742 | sub pp_ftpipe { ftst(@_, "-p") } | ||||
| 2743 | sub pp_ftlink { ftst(@_, "-l") } | ||||
| 2744 | sub pp_ftsuid { ftst(@_, "-u") } | ||||
| 2745 | sub pp_ftsgid { ftst(@_, "-g") } | ||||
| 2746 | sub pp_ftsvtx { ftst(@_, "-k") } | ||||
| 2747 | sub pp_fttty { ftst(@_, "-t") } | ||||
| 2748 | sub pp_fttext { ftst(@_, "-T") } | ||||
| 2749 | sub pp_ftbinary { ftst(@_, "-B") } | ||||
| 2750 | |||||
| 2751 | sub SWAP_CHILDREN () { 1 } | ||||
| 2752 | sub ASSIGN () { 2 } # has OP= variant | ||||
| 2753 | sub LIST_CONTEXT () { 4 } # Assignment is in list context | ||||
| 2754 | |||||
| 2755 | 1 | 200ns | my(%left, %right); | ||
| 2756 | |||||
| 2757 | sub assoc_class { | ||||
| 2758 | my $op = shift; | ||||
| 2759 | my $name = $op->name; | ||||
| 2760 | if ($name eq "concat" and $op->first->name eq "concat") { | ||||
| 2761 | # avoid spurious '=' -- see comment in pp_concat | ||||
| 2762 | return "concat"; | ||||
| 2763 | } | ||||
| 2764 | if ($name eq "null" and class($op) eq "UNOP" | ||||
| 2765 | and $op->first->name =~ /^(and|x?or)$/ | ||||
| 2766 | and null $op->first->sibling) | ||||
| 2767 | { | ||||
| 2768 | # Like all conditional constructs, OP_ANDs and OP_ORs are topped | ||||
| 2769 | # with a null that's used as the common end point of the two | ||||
| 2770 | # flows of control. For precedence purposes, ignore it. | ||||
| 2771 | # (COND_EXPRs have these too, but we don't bother with | ||||
| 2772 | # their associativity). | ||||
| 2773 | return assoc_class($op->first); | ||||
| 2774 | } | ||||
| 2775 | return $name . ($op->flags & OPf_STACKED ? "=" : ""); | ||||
| 2776 | } | ||||
| 2777 | |||||
| 2778 | # Left associative operators, like '+', for which | ||||
| 2779 | # $a + $b + $c is equivalent to ($a + $b) + $c | ||||
| 2780 | |||||
| 2781 | # spent 12µs within B::Deparse::BEGIN@2781 which was called:
# once (12µs+0s) by YAML::XS::BEGIN@57 at line 2797 | ||||
| 2782 | 1 | 15µs | %left = ('multiply' => 19, 'i_multiply' => 19, | ||
| 2783 | 'divide' => 19, 'i_divide' => 19, | ||||
| 2784 | 'modulo' => 19, 'i_modulo' => 19, | ||||
| 2785 | 'repeat' => 19, | ||||
| 2786 | 'add' => 18, 'i_add' => 18, | ||||
| 2787 | 'subtract' => 18, 'i_subtract' => 18, | ||||
| 2788 | 'concat' => 18, | ||||
| 2789 | 'left_shift' => 17, 'right_shift' => 17, | ||||
| 2790 | 'bit_and' => 13, 'nbit_and' => 13, 'sbit_and' => 13, | ||||
| 2791 | 'bit_or' => 12, 'bit_xor' => 12, | ||||
| 2792 | 'sbit_or' => 12, 'sbit_xor' => 12, | ||||
| 2793 | 'nbit_or' => 12, 'nbit_xor' => 12, | ||||
| 2794 | 'and' => 3, | ||||
| 2795 | 'or' => 2, 'xor' => 2, | ||||
| 2796 | ); | ||||
| 2797 | 1 | 77µs | 1 | 12µs | } # spent 12µs making 1 call to B::Deparse::BEGIN@2781 |
| 2798 | |||||
| 2799 | sub deparse_binop_left { | ||||
| 2800 | my $self = shift; | ||||
| 2801 | my($op, $left, $prec) = @_; | ||||
| 2802 | if ($left{assoc_class($op)} && $left{assoc_class($left)} | ||||
| 2803 | and $left{assoc_class($op)} == $left{assoc_class($left)}) | ||||
| 2804 | { | ||||
| 2805 | return $self->deparse($left, $prec - .00001); | ||||
| 2806 | } else { | ||||
| 2807 | return $self->deparse($left, $prec); | ||||
| 2808 | } | ||||
| 2809 | } | ||||
| 2810 | |||||
| 2811 | # Right associative operators, like '=', for which | ||||
| 2812 | # $a = $b = $c is equivalent to $a = ($b = $c) | ||||
| 2813 | |||||
| 2814 | # spent 13µs within B::Deparse::BEGIN@2814 which was called:
# once (13µs+0s) by YAML::XS::BEGIN@57 at line 2831 | ||||
| 2815 | 1 | 13µs | %right = ('pow' => 22, | ||
| 2816 | 'sassign=' => 7, 'aassign=' => 7, | ||||
| 2817 | 'multiply=' => 7, 'i_multiply=' => 7, | ||||
| 2818 | 'divide=' => 7, 'i_divide=' => 7, | ||||
| 2819 | 'modulo=' => 7, 'i_modulo=' => 7, | ||||
| 2820 | 'repeat=' => 7, 'refassign' => 7, 'refassign=' => 7, | ||||
| 2821 | 'add=' => 7, 'i_add=' => 7, | ||||
| 2822 | 'subtract=' => 7, 'i_subtract=' => 7, | ||||
| 2823 | 'concat=' => 7, | ||||
| 2824 | 'left_shift=' => 7, 'right_shift=' => 7, | ||||
| 2825 | 'bit_and=' => 7, 'sbit_and=' => 7, 'nbit_and=' => 7, | ||||
| 2826 | 'nbit_or=' => 7, 'nbit_xor=' => 7, | ||||
| 2827 | 'sbit_or=' => 7, 'sbit_xor=' => 7, | ||||
| 2828 | 'andassign' => 7, | ||||
| 2829 | 'orassign' => 7, | ||||
| 2830 | ); | ||||
| 2831 | 1 | 2.37ms | 1 | 13µs | } # spent 13µs making 1 call to B::Deparse::BEGIN@2814 |
| 2832 | |||||
| 2833 | sub deparse_binop_right { | ||||
| 2834 | my $self = shift; | ||||
| 2835 | my($op, $right, $prec) = @_; | ||||
| 2836 | if ($right{assoc_class($op)} && $right{assoc_class($right)} | ||||
| 2837 | and $right{assoc_class($op)} == $right{assoc_class($right)}) | ||||
| 2838 | { | ||||
| 2839 | return $self->deparse($right, $prec - .00001); | ||||
| 2840 | } else { | ||||
| 2841 | return $self->deparse($right, $prec); | ||||
| 2842 | } | ||||
| 2843 | } | ||||
| 2844 | |||||
| 2845 | sub binop { | ||||
| 2846 | my $self = shift; | ||||
| 2847 | my ($op, $cx, $opname, $prec, $flags) = (@_, 0); | ||||
| 2848 | my $left = $op->first; | ||||
| 2849 | my $right = $op->last; | ||||
| 2850 | my $eq = ""; | ||||
| 2851 | if ($op->flags & OPf_STACKED && $flags & ASSIGN) { | ||||
| 2852 | $eq = "="; | ||||
| 2853 | $prec = 7; | ||||
| 2854 | } | ||||
| 2855 | if ($flags & SWAP_CHILDREN) { | ||||
| 2856 | ($left, $right) = ($right, $left); | ||||
| 2857 | } | ||||
| 2858 | my $leftop = $left; | ||||
| 2859 | $left = $self->deparse_binop_left($op, $left, $prec); | ||||
| 2860 | $left = "($left)" if $flags & LIST_CONTEXT | ||||
| 2861 | and $left !~ /^(my|our|local|)[\@\(]/ | ||||
| 2862 | || do { | ||||
| 2863 | # Parenthesize if the left argument is a | ||||
| 2864 | # lone repeat op. | ||||
| 2865 | my $left = $leftop->first->sibling; | ||||
| 2866 | $left->name eq 'repeat' | ||||
| 2867 | && null($left->sibling); | ||||
| 2868 | }; | ||||
| 2869 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
| 2870 | return $self->maybe_parens("$left $opname$eq $right", $cx, $prec); | ||||
| 2871 | } | ||||
| 2872 | |||||
| 2873 | sub pp_add { maybe_targmy(@_, \&binop, "+", 18, ASSIGN) } | ||||
| 2874 | sub pp_multiply { maybe_targmy(@_, \&binop, "*", 19, ASSIGN) } | ||||
| 2875 | sub pp_subtract { maybe_targmy(@_, \&binop, "-",18, ASSIGN) } | ||||
| 2876 | sub pp_divide { maybe_targmy(@_, \&binop, "/", 19, ASSIGN) } | ||||
| 2877 | sub pp_modulo { maybe_targmy(@_, \&binop, "%", 19, ASSIGN) } | ||||
| 2878 | sub pp_i_add { maybe_targmy(@_, \&binop, "+", 18, ASSIGN) } | ||||
| 2879 | sub pp_i_multiply { maybe_targmy(@_, \&binop, "*", 19, ASSIGN) } | ||||
| 2880 | sub pp_i_subtract { maybe_targmy(@_, \&binop, "-", 18, ASSIGN) } | ||||
| 2881 | sub pp_i_divide { maybe_targmy(@_, \&binop, "/", 19, ASSIGN) } | ||||
| 2882 | sub pp_i_modulo { maybe_targmy(@_, \&binop, "%", 19, ASSIGN) } | ||||
| 2883 | sub pp_pow { maybe_targmy(@_, \&binop, "**", 22, ASSIGN) } | ||||
| 2884 | |||||
| 2885 | sub pp_left_shift { maybe_targmy(@_, \&binop, "<<", 17, ASSIGN) } | ||||
| 2886 | sub pp_right_shift { maybe_targmy(@_, \&binop, ">>", 17, ASSIGN) } | ||||
| 2887 | sub pp_bit_and { maybe_targmy(@_, \&binop, "&", 13, ASSIGN) } | ||||
| 2888 | sub pp_bit_or { maybe_targmy(@_, \&binop, "|", 12, ASSIGN) } | ||||
| 2889 | sub pp_bit_xor { maybe_targmy(@_, \&binop, "^", 12, ASSIGN) } | ||||
| 2890 | 1 | 400ns | *pp_nbit_and = *pp_bit_and; | ||
| 2891 | 1 | 400ns | *pp_nbit_or = *pp_bit_or; | ||
| 2892 | 1 | 400ns | *pp_nbit_xor = *pp_bit_xor; | ||
| 2893 | sub pp_sbit_and { maybe_targmy(@_, \&binop, "&.", 13, ASSIGN) } | ||||
| 2894 | sub pp_sbit_or { maybe_targmy(@_, \&binop, "|.", 12, ASSIGN) } | ||||
| 2895 | sub pp_sbit_xor { maybe_targmy(@_, \&binop, "^.", 12, ASSIGN) } | ||||
| 2896 | |||||
| 2897 | sub pp_eq { binop(@_, "==", 14) } | ||||
| 2898 | sub pp_ne { binop(@_, "!=", 14) } | ||||
| 2899 | sub pp_lt { binop(@_, "<", 15) } | ||||
| 2900 | sub pp_gt { binop(@_, ">", 15) } | ||||
| 2901 | sub pp_ge { binop(@_, ">=", 15) } | ||||
| 2902 | sub pp_le { binop(@_, "<=", 15) } | ||||
| 2903 | sub pp_ncmp { binop(@_, "<=>", 14) } | ||||
| 2904 | sub pp_i_eq { binop(@_, "==", 14) } | ||||
| 2905 | sub pp_i_ne { binop(@_, "!=", 14) } | ||||
| 2906 | sub pp_i_lt { binop(@_, "<", 15) } | ||||
| 2907 | sub pp_i_gt { binop(@_, ">", 15) } | ||||
| 2908 | sub pp_i_ge { binop(@_, ">=", 15) } | ||||
| 2909 | sub pp_i_le { binop(@_, "<=", 15) } | ||||
| 2910 | sub pp_i_ncmp { maybe_targmy(@_, \&binop, "<=>", 14) } | ||||
| 2911 | |||||
| 2912 | sub pp_seq { binop(@_, "eq", 14) } | ||||
| 2913 | sub pp_sne { binop(@_, "ne", 14) } | ||||
| 2914 | sub pp_slt { binop(@_, "lt", 15) } | ||||
| 2915 | sub pp_sgt { binop(@_, "gt", 15) } | ||||
| 2916 | sub pp_sge { binop(@_, "ge", 15) } | ||||
| 2917 | sub pp_sle { binop(@_, "le", 15) } | ||||
| 2918 | sub pp_scmp { maybe_targmy(@_, \&binop, "cmp", 14) } | ||||
| 2919 | |||||
| 2920 | sub pp_sassign { binop(@_, "=", 7, SWAP_CHILDREN) } | ||||
| 2921 | sub pp_aassign { binop(@_, "=", 7, SWAP_CHILDREN | LIST_CONTEXT) } | ||||
| 2922 | |||||
| 2923 | sub pp_smartmatch { | ||||
| 2924 | my ($self, $op, $cx) = @_; | ||||
| 2925 | if ($op->flags & OPf_SPECIAL) { | ||||
| 2926 | return $self->deparse($op->last, $cx); | ||||
| 2927 | } | ||||
| 2928 | else { | ||||
| 2929 | binop(@_, "~~", 14); | ||||
| 2930 | } | ||||
| 2931 | } | ||||
| 2932 | |||||
| 2933 | # '.' is special because concats-of-concats are optimized to save copying | ||||
| 2934 | # by making all but the first concat stacked. The effect is as if the | ||||
| 2935 | # programmer had written '($a . $b) .= $c', except legal. | ||||
| 2936 | sub pp_concat { maybe_targmy(@_, \&real_concat) } | ||||
| 2937 | sub real_concat { | ||||
| 2938 | my $self = shift; | ||||
| 2939 | my($op, $cx) = @_; | ||||
| 2940 | my $left = $op->first; | ||||
| 2941 | my $right = $op->last; | ||||
| 2942 | my $eq = ""; | ||||
| 2943 | my $prec = 18; | ||||
| 2944 | if ($op->flags & OPf_STACKED and $op->first->name ne "concat") { | ||||
| 2945 | $eq = "="; | ||||
| 2946 | $prec = 7; | ||||
| 2947 | } | ||||
| 2948 | $left = $self->deparse_binop_left($op, $left, $prec); | ||||
| 2949 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
| 2950 | return $self->maybe_parens("$left .$eq $right", $cx, $prec); | ||||
| 2951 | } | ||||
| 2952 | |||||
| 2953 | sub pp_repeat { maybe_targmy(@_, \&repeat) } | ||||
| 2954 | |||||
| 2955 | # 'x' is weird when the left arg is a list | ||||
| 2956 | sub repeat { | ||||
| 2957 | my $self = shift; | ||||
| 2958 | my($op, $cx) = @_; | ||||
| 2959 | my $left = $op->first; | ||||
| 2960 | my $right = $op->last; | ||||
| 2961 | my $eq = ""; | ||||
| 2962 | my $prec = 19; | ||||
| 2963 | if ($op->flags & OPf_STACKED) { | ||||
| 2964 | $eq = "="; | ||||
| 2965 | $prec = 7; | ||||
| 2966 | } | ||||
| 2967 | if (null($right)) { # list repeat; count is inside left-side ex-list | ||||
| 2968 | # in 5.21.5 and earlier | ||||
| 2969 | my $kid = $left->first->sibling; # skip pushmark | ||||
| 2970 | my @exprs; | ||||
| 2971 | for (; !null($kid->sibling); $kid = $kid->sibling) { | ||||
| 2972 | push @exprs, $self->deparse($kid, 6); | ||||
| 2973 | } | ||||
| 2974 | $right = $kid; | ||||
| 2975 | $left = "(" . join(", ", @exprs). ")"; | ||||
| 2976 | } else { | ||||
| 2977 | my $dolist = $op->private & OPpREPEAT_DOLIST; | ||||
| 2978 | $left = $self->deparse_binop_left($op, $left, $dolist ? 1 : $prec); | ||||
| 2979 | if ($dolist) { | ||||
| 2980 | $left = "($left)"; | ||||
| 2981 | } | ||||
| 2982 | } | ||||
| 2983 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
| 2984 | return $self->maybe_parens("$left x$eq $right", $cx, $prec); | ||||
| 2985 | } | ||||
| 2986 | |||||
| 2987 | sub range { | ||||
| 2988 | my $self = shift; | ||||
| 2989 | my ($op, $cx, $type) = @_; | ||||
| 2990 | my $left = $op->first; | ||||
| 2991 | my $right = $left->sibling; | ||||
| 2992 | $left = $self->deparse($left, 9); | ||||
| 2993 | $right = $self->deparse($right, 9); | ||||
| 2994 | return $self->maybe_parens("$left $type $right", $cx, 9); | ||||
| 2995 | } | ||||
| 2996 | |||||
| 2997 | sub pp_flop { | ||||
| 2998 | my $self = shift; | ||||
| 2999 | my($op, $cx) = @_; | ||||
| 3000 | my $flip = $op->first; | ||||
| 3001 | my $type = ($flip->flags & OPf_SPECIAL) ? "..." : ".."; | ||||
| 3002 | return $self->range($flip->first, $cx, $type); | ||||
| 3003 | } | ||||
| 3004 | |||||
| 3005 | # one-line while/until is handled in pp_leave | ||||
| 3006 | |||||
| 3007 | sub logop { | ||||
| 3008 | my $self = shift; | ||||
| 3009 | my ($op, $cx, $lowop, $lowprec, $highop, $highprec, $blockname) = @_; | ||||
| 3010 | my $left = $op->first; | ||||
| 3011 | my $right = $op->first->sibling; | ||||
| 3012 | $blockname &&= $self->keyword($blockname); | ||||
| 3013 | if ($cx < 1 and is_scope($right) and $blockname | ||||
| 3014 | and $self->{'expand'} < 7) | ||||
| 3015 | { # if ($a) {$b} | ||||
| 3016 | $left = $self->deparse($left, 1); | ||||
| 3017 | $right = $self->deparse($right, 0); | ||||
| 3018 | return "$blockname ($left) {\n\t$right\n\b}\cK"; | ||||
| 3019 | } elsif ($cx < 1 and $blockname and not $self->{'parens'} | ||||
| 3020 | and $self->{'expand'} < 7) { # $b if $a | ||||
| 3021 | $right = $self->deparse($right, 1); | ||||
| 3022 | $left = $self->deparse($left, 1); | ||||
| 3023 | return "$right $blockname $left"; | ||||
| 3024 | } elsif ($cx > $lowprec and $highop) { # $a && $b | ||||
| 3025 | $left = $self->deparse_binop_left($op, $left, $highprec); | ||||
| 3026 | $right = $self->deparse_binop_right($op, $right, $highprec); | ||||
| 3027 | return $self->maybe_parens("$left $highop $right", $cx, $highprec); | ||||
| 3028 | } else { # $a and $b | ||||
| 3029 | $left = $self->deparse_binop_left($op, $left, $lowprec); | ||||
| 3030 | $right = $self->deparse_binop_right($op, $right, $lowprec); | ||||
| 3031 | return $self->maybe_parens("$left $lowop $right", $cx, $lowprec); | ||||
| 3032 | } | ||||
| 3033 | } | ||||
| 3034 | |||||
| 3035 | sub pp_and { logop(@_, "and", 3, "&&", 11, "if") } | ||||
| 3036 | sub pp_or { logop(@_, "or", 2, "||", 10, "unless") } | ||||
| 3037 | sub pp_dor { logop(@_, "//", 10) } | ||||
| 3038 | |||||
| 3039 | # xor is syntactically a logop, but it's really a binop (contrary to | ||||
| 3040 | # old versions of opcode.pl). Syntax is what matters here. | ||||
| 3041 | sub pp_xor { logop(@_, "xor", 2, "", 0, "") } | ||||
| 3042 | |||||
| 3043 | sub logassignop { | ||||
| 3044 | my $self = shift; | ||||
| 3045 | my ($op, $cx, $opname) = @_; | ||||
| 3046 | my $left = $op->first; | ||||
| 3047 | my $right = $op->first->sibling->first; # skip sassign | ||||
| 3048 | $left = $self->deparse($left, 7); | ||||
| 3049 | $right = $self->deparse($right, 7); | ||||
| 3050 | return $self->maybe_parens("$left $opname $right", $cx, 7); | ||||
| 3051 | } | ||||
| 3052 | |||||
| 3053 | sub pp_andassign { logassignop(@_, "&&=") } | ||||
| 3054 | sub pp_orassign { logassignop(@_, "||=") } | ||||
| 3055 | sub pp_dorassign { logassignop(@_, "//=") } | ||||
| 3056 | |||||
| 3057 | sub rv2gv_or_string { | ||||
| 3058 | my($self,$op) = @_; | ||||
| 3059 | if ($op->name eq "gv") { # could be open("open") or open("###") | ||||
| 3060 | my($name,$quoted) = | ||||
| 3061 | $self->stash_variable_name("", $self->gv_or_padgv($op)); | ||||
| 3062 | $quoted ? $name : "*$name"; | ||||
| 3063 | } | ||||
| 3064 | else { | ||||
| 3065 | $self->deparse($op, 6); | ||||
| 3066 | } | ||||
| 3067 | } | ||||
| 3068 | |||||
| 3069 | sub listop { | ||||
| 3070 | my $self = shift; | ||||
| 3071 | my($op, $cx, $name, $kid, $nollafr) = @_; | ||||
| 3072 | my(@exprs); | ||||
| 3073 | my $parens = ($cx >= 5) || $self->{'parens'}; | ||||
| 3074 | $kid ||= $op->first->sibling; | ||||
| 3075 | # If there are no arguments, add final parentheses (or parenthesize the | ||||
| 3076 | # whole thing if the llafr does not apply) to account for cases like | ||||
| 3077 | # (return)+1 or setpgrp()+1. When the llafr does not apply, we use a | ||||
| 3078 | # precedence of 6 (< comma), as "return, 1" does not need parentheses. | ||||
| 3079 | if (null $kid) { | ||||
| 3080 | return $nollafr | ||||
| 3081 | ? $self->maybe_parens($self->keyword($name), $cx, 7) | ||||
| 3082 | : $self->keyword($name) . '()' x (7 < $cx); | ||||
| 3083 | } | ||||
| 3084 | my $first; | ||||
| 3085 | my $fullname = $self->keyword($name); | ||||
| 3086 | my $proto = prototype("CORE::$name"); | ||||
| 3087 | if ( | ||||
| 3088 | ( (defined $proto && $proto =~ /^;?\*/) | ||||
| 3089 | || $name eq 'select' # select(F) doesn't have a proto | ||||
| 3090 | ) | ||||
| 3091 | && $kid->name eq "rv2gv" | ||||
| 3092 | && !($kid->private & OPpLVAL_INTRO) | ||||
| 3093 | ) { | ||||
| 3094 | $first = $self->rv2gv_or_string($kid->first); | ||||
| 3095 | } | ||||
| 3096 | else { | ||||
| 3097 | $first = $self->deparse($kid, 6); | ||||
| 3098 | } | ||||
| 3099 | if ($name eq "chmod" && $first =~ /^\d+$/) { | ||||
| 3100 | $first = sprintf("%#o", $first); | ||||
| 3101 | } | ||||
| 3102 | $first = "+$first" | ||||
| 3103 | if not $parens and not $nollafr and substr($first, 0, 1) eq "("; | ||||
| 3104 | push @exprs, $first; | ||||
| 3105 | $kid = $kid->sibling; | ||||
| 3106 | if (defined $proto && $proto =~ /^\*\*/ && $kid->name eq "rv2gv" | ||||
| 3107 | && !($kid->private & OPpLVAL_INTRO)) { | ||||
| 3108 | push @exprs, $first = $self->rv2gv_or_string($kid->first); | ||||
| 3109 | $kid = $kid->sibling; | ||||
| 3110 | } | ||||
| 3111 | for (; !null($kid); $kid = $kid->sibling) { | ||||
| 3112 | push @exprs, $self->deparse($kid, 6); | ||||
| 3113 | } | ||||
| 3114 | if ($name eq "reverse" && ($op->private & OPpREVERSE_INPLACE)) { | ||||
| 3115 | return "$exprs[0] = $fullname" | ||||
| 3116 | . ($parens ? "($exprs[0])" : " $exprs[0]"); | ||||
| 3117 | } | ||||
| 3118 | |||||
| 3119 | if ($parens && $nollafr) { | ||||
| 3120 | return "($fullname " . join(", ", @exprs) . ")"; | ||||
| 3121 | } elsif ($parens) { | ||||
| 3122 | return "$fullname(" . join(", ", @exprs) . ")"; | ||||
| 3123 | } else { | ||||
| 3124 | return "$fullname " . join(", ", @exprs); | ||||
| 3125 | } | ||||
| 3126 | } | ||||
| 3127 | |||||
| 3128 | sub pp_bless { listop(@_, "bless") } | ||||
| 3129 | sub pp_atan2 { maybe_targmy(@_, \&listop, "atan2") } | ||||
| 3130 | sub pp_substr { | ||||
| 3131 | my ($self,$op,$cx) = @_; | ||||
| 3132 | if ($op->private & OPpSUBSTR_REPL_FIRST) { | ||||
| 3133 | return | ||||
| 3134 | listop($self, $op, 7, "substr", $op->first->sibling->sibling) | ||||
| 3135 | . " = " | ||||
| 3136 | . $self->deparse($op->first->sibling, 7); | ||||
| 3137 | } | ||||
| 3138 | maybe_local(@_, listop(@_, "substr")) | ||||
| 3139 | } | ||||
| 3140 | sub pp_vec { maybe_targmy(@_, \&maybe_local, listop(@_, "vec")) } | ||||
| 3141 | sub pp_index { maybe_targmy(@_, \&listop, "index") } | ||||
| 3142 | sub pp_rindex { maybe_targmy(@_, \&listop, "rindex") } | ||||
| 3143 | sub pp_sprintf { maybe_targmy(@_, \&listop, "sprintf") } | ||||
| 3144 | sub pp_formline { listop(@_, "formline") } # see also deparse_format | ||||
| 3145 | sub pp_crypt { maybe_targmy(@_, \&listop, "crypt") } | ||||
| 3146 | sub pp_unpack { listop(@_, "unpack") } | ||||
| 3147 | sub pp_pack { listop(@_, "pack") } | ||||
| 3148 | sub pp_join { maybe_targmy(@_, \&listop, "join") } | ||||
| 3149 | sub pp_splice { listop(@_, "splice") } | ||||
| 3150 | sub pp_push { maybe_targmy(@_, \&listop, "push") } | ||||
| 3151 | sub pp_unshift { maybe_targmy(@_, \&listop, "unshift") } | ||||
| 3152 | sub pp_reverse { listop(@_, "reverse") } | ||||
| 3153 | sub pp_warn { listop(@_, "warn") } | ||||
| 3154 | sub pp_die { listop(@_, "die") } | ||||
| 3155 | sub pp_return { listop(@_, "return", undef, 1) } # llafr does not apply | ||||
| 3156 | sub pp_open { listop(@_, "open") } | ||||
| 3157 | sub pp_pipe_op { listop(@_, "pipe") } | ||||
| 3158 | sub pp_tie { listop(@_, "tie") } | ||||
| 3159 | sub pp_binmode { listop(@_, "binmode") } | ||||
| 3160 | sub pp_dbmopen { listop(@_, "dbmopen") } | ||||
| 3161 | sub pp_sselect { listop(@_, "select") } | ||||
| 3162 | sub pp_select { listop(@_, "select") } | ||||
| 3163 | sub pp_read { listop(@_, "read") } | ||||
| 3164 | sub pp_sysopen { listop(@_, "sysopen") } | ||||
| 3165 | sub pp_sysseek { listop(@_, "sysseek") } | ||||
| 3166 | sub pp_sysread { listop(@_, "sysread") } | ||||
| 3167 | sub pp_syswrite { listop(@_, "syswrite") } | ||||
| 3168 | sub pp_send { listop(@_, "send") } | ||||
| 3169 | sub pp_recv { listop(@_, "recv") } | ||||
| 3170 | sub pp_seek { listop(@_, "seek") } | ||||
| 3171 | sub pp_fcntl { listop(@_, "fcntl") } | ||||
| 3172 | sub pp_ioctl { listop(@_, "ioctl") } | ||||
| 3173 | sub pp_flock { maybe_targmy(@_, \&listop, "flock") } | ||||
| 3174 | sub pp_socket { listop(@_, "socket") } | ||||
| 3175 | sub pp_sockpair { listop(@_, "socketpair") } | ||||
| 3176 | sub pp_bind { listop(@_, "bind") } | ||||
| 3177 | sub pp_connect { listop(@_, "connect") } | ||||
| 3178 | sub pp_listen { listop(@_, "listen") } | ||||
| 3179 | sub pp_accept { listop(@_, "accept") } | ||||
| 3180 | sub pp_shutdown { listop(@_, "shutdown") } | ||||
| 3181 | sub pp_gsockopt { listop(@_, "getsockopt") } | ||||
| 3182 | sub pp_ssockopt { listop(@_, "setsockopt") } | ||||
| 3183 | sub pp_chown { maybe_targmy(@_, \&listop, "chown") } | ||||
| 3184 | sub pp_unlink { maybe_targmy(@_, \&listop, "unlink") } | ||||
| 3185 | sub pp_chmod { maybe_targmy(@_, \&listop, "chmod") } | ||||
| 3186 | sub pp_utime { maybe_targmy(@_, \&listop, "utime") } | ||||
| 3187 | sub pp_rename { maybe_targmy(@_, \&listop, "rename") } | ||||
| 3188 | sub pp_link { maybe_targmy(@_, \&listop, "link") } | ||||
| 3189 | sub pp_symlink { maybe_targmy(@_, \&listop, "symlink") } | ||||
| 3190 | sub pp_mkdir { maybe_targmy(@_, \&listop, "mkdir") } | ||||
| 3191 | sub pp_open_dir { listop(@_, "opendir") } | ||||
| 3192 | sub pp_seekdir { listop(@_, "seekdir") } | ||||
| 3193 | sub pp_waitpid { maybe_targmy(@_, \&listop, "waitpid") } | ||||
| 3194 | sub pp_system { maybe_targmy(@_, \&indirop, "system") } | ||||
| 3195 | sub pp_exec { maybe_targmy(@_, \&indirop, "exec") } | ||||
| 3196 | sub pp_kill { maybe_targmy(@_, \&listop, "kill") } | ||||
| 3197 | sub pp_setpgrp { maybe_targmy(@_, \&listop, "setpgrp") } | ||||
| 3198 | sub pp_getpriority { maybe_targmy(@_, \&listop, "getpriority") } | ||||
| 3199 | sub pp_setpriority { maybe_targmy(@_, \&listop, "setpriority") } | ||||
| 3200 | sub pp_shmget { listop(@_, "shmget") } | ||||
| 3201 | sub pp_shmctl { listop(@_, "shmctl") } | ||||
| 3202 | sub pp_shmread { listop(@_, "shmread") } | ||||
| 3203 | sub pp_shmwrite { listop(@_, "shmwrite") } | ||||
| 3204 | sub pp_msgget { listop(@_, "msgget") } | ||||
| 3205 | sub pp_msgctl { listop(@_, "msgctl") } | ||||
| 3206 | sub pp_msgsnd { listop(@_, "msgsnd") } | ||||
| 3207 | sub pp_msgrcv { listop(@_, "msgrcv") } | ||||
| 3208 | sub pp_semget { listop(@_, "semget") } | ||||
| 3209 | sub pp_semctl { listop(@_, "semctl") } | ||||
| 3210 | sub pp_semop { listop(@_, "semop") } | ||||
| 3211 | sub pp_ghbyaddr { listop(@_, "gethostbyaddr") } | ||||
| 3212 | sub pp_gnbyaddr { listop(@_, "getnetbyaddr") } | ||||
| 3213 | sub pp_gpbynumber { listop(@_, "getprotobynumber") } | ||||
| 3214 | sub pp_gsbyname { listop(@_, "getservbyname") } | ||||
| 3215 | sub pp_gsbyport { listop(@_, "getservbyport") } | ||||
| 3216 | sub pp_syscall { listop(@_, "syscall") } | ||||
| 3217 | |||||
| 3218 | sub pp_glob { | ||||
| 3219 | my $self = shift; | ||||
| 3220 | my($op, $cx) = @_; | ||||
| 3221 | my $kid = $op->first->sibling; # skip pushmark | ||||
| 3222 | my $keyword = | ||||
| 3223 | $op->flags & OPf_SPECIAL ? 'glob' : $self->keyword('glob'); | ||||
| 3224 | my $text; | ||||
| 3225 | if ($keyword =~ /^CORE::/ | ||||
| 3226 | or $kid->name ne 'const' | ||||
| 3227 | or ($text = $self->dq($kid)) | ||||
| 3228 | =~ /^\$?(\w|::|\`)+$/ # could look like a readline | ||||
| 3229 | or $text =~ /[<>]/) { | ||||
| 3230 | $text = $self->deparse($kid); | ||||
| 3231 | return $cx >= 5 || $self->{'parens'} | ||||
| 3232 | ? "$keyword($text)" | ||||
| 3233 | : "$keyword $text"; | ||||
| 3234 | } else { | ||||
| 3235 | return '<' . $text . '>'; | ||||
| 3236 | } | ||||
| 3237 | } | ||||
| 3238 | |||||
| 3239 | # Truncate is special because OPf_SPECIAL makes a bareword first arg | ||||
| 3240 | # be a filehandle. This could probably be better fixed in the core | ||||
| 3241 | # by moving the GV lookup into ck_truc. | ||||
| 3242 | |||||
| 3243 | sub pp_truncate { | ||||
| 3244 | my $self = shift; | ||||
| 3245 | my($op, $cx) = @_; | ||||
| 3246 | my(@exprs); | ||||
| 3247 | my $parens = ($cx >= 5) || $self->{'parens'}; | ||||
| 3248 | my $kid = $op->first->sibling; | ||||
| 3249 | my $fh; | ||||
| 3250 | if ($op->flags & OPf_SPECIAL) { | ||||
| 3251 | # $kid is an OP_CONST | ||||
| 3252 | $fh = $self->const_sv($kid)->PV; | ||||
| 3253 | } else { | ||||
| 3254 | $fh = $self->deparse($kid, 6); | ||||
| 3255 | $fh = "+$fh" if not $parens and substr($fh, 0, 1) eq "("; | ||||
| 3256 | } | ||||
| 3257 | my $len = $self->deparse($kid->sibling, 6); | ||||
| 3258 | my $name = $self->keyword('truncate'); | ||||
| 3259 | if ($parens) { | ||||
| 3260 | return "$name($fh, $len)"; | ||||
| 3261 | } else { | ||||
| 3262 | return "$name $fh, $len"; | ||||
| 3263 | } | ||||
| 3264 | } | ||||
| 3265 | |||||
| 3266 | sub indirop { | ||||
| 3267 | my $self = shift; | ||||
| 3268 | my($op, $cx, $name) = @_; | ||||
| 3269 | my($expr, @exprs); | ||||
| 3270 | my $firstkid = my $kid = $op->first->sibling; | ||||
| 3271 | my $indir = ""; | ||||
| 3272 | if ($op->flags & OPf_STACKED) { | ||||
| 3273 | $indir = $kid; | ||||
| 3274 | $indir = $indir->first; # skip rv2gv | ||||
| 3275 | if (is_scope($indir)) { | ||||
| 3276 | $indir = "{" . $self->deparse($indir, 0) . "}"; | ||||
| 3277 | $indir = "{;}" if $indir eq "{}"; | ||||
| 3278 | } elsif ($indir->name eq "const" && $indir->private & OPpCONST_BARE) { | ||||
| 3279 | $indir = $self->const_sv($indir)->PV; | ||||
| 3280 | } else { | ||||
| 3281 | $indir = $self->deparse($indir, 24); | ||||
| 3282 | } | ||||
| 3283 | $indir = $indir . " "; | ||||
| 3284 | $kid = $kid->sibling; | ||||
| 3285 | } | ||||
| 3286 | if ($name eq "sort" && $op->private & (OPpSORT_NUMERIC | OPpSORT_INTEGER)) { | ||||
| 3287 | $indir = ($op->private & OPpSORT_DESCEND) ? '{$b <=> $a} ' | ||||
| 3288 | : '{$a <=> $b} '; | ||||
| 3289 | } | ||||
| 3290 | elsif ($name eq "sort" && $op->private & OPpSORT_DESCEND) { | ||||
| 3291 | $indir = '{$b cmp $a} '; | ||||
| 3292 | } | ||||
| 3293 | for (; !null($kid); $kid = $kid->sibling) { | ||||
| 3294 | $expr = $self->deparse($kid, !$indir && $kid == $firstkid && $name eq "sort" && $firstkid->name eq "entersub" ? 16 : 6); | ||||
| 3295 | push @exprs, $expr; | ||||
| 3296 | } | ||||
| 3297 | my $name2; | ||||
| 3298 | if ($name eq "sort" && $op->private & OPpSORT_REVERSE) { | ||||
| 3299 | $name2 = $self->keyword('reverse') . ' ' . $self->keyword('sort'); | ||||
| 3300 | } | ||||
| 3301 | else { $name2 = $self->keyword($name) } | ||||
| 3302 | if ($name eq "sort" && ($op->private & OPpSORT_INPLACE)) { | ||||
| 3303 | return "$exprs[0] = $name2 $indir $exprs[0]"; | ||||
| 3304 | } | ||||
| 3305 | |||||
| 3306 | my $args = $indir . join(", ", @exprs); | ||||
| 3307 | if ($indir ne "" && $name eq "sort") { | ||||
| 3308 | # We don't want to say "sort(f 1, 2, 3)", since perl -w will | ||||
| 3309 | # give bareword warnings in that case. Therefore if context | ||||
| 3310 | # requires, we'll put parens around the outside "(sort f 1, 2, | ||||
| 3311 | # 3)". Unfortunately, we'll currently think the parens are | ||||
| 3312 | # necessary more often that they really are, because we don't | ||||
| 3313 | # distinguish which side of an assignment we're on. | ||||
| 3314 | if ($cx >= 5) { | ||||
| 3315 | return "($name2 $args)"; | ||||
| 3316 | } else { | ||||
| 3317 | return "$name2 $args"; | ||||
| 3318 | } | ||||
| 3319 | } elsif ( | ||||
| 3320 | !$indir && $name eq "sort" | ||||
| 3321 | && !null($op->first->sibling) | ||||
| 3322 | && $op->first->sibling->name eq 'entersub' | ||||
| 3323 | ) { | ||||
| 3324 | # We cannot say sort foo(bar), as foo will be interpreted as a | ||||
| 3325 | # comparison routine. We have to say sort(...) in that case. | ||||
| 3326 | return "$name2($args)"; | ||||
| 3327 | } else { | ||||
| 3328 | return length $args | ||||
| 3329 | ? $self->maybe_parens_func($name2, $args, $cx, 5) | ||||
| 3330 | : $name2 . '()' x (7 < $cx); | ||||
| 3331 | } | ||||
| 3332 | |||||
| 3333 | } | ||||
| 3334 | |||||
| 3335 | sub pp_prtf { indirop(@_, "printf") } | ||||
| 3336 | sub pp_print { indirop(@_, "print") } | ||||
| 3337 | sub pp_say { indirop(@_, "say") } | ||||
| 3338 | sub pp_sort { indirop(@_, "sort") } | ||||
| 3339 | |||||
| 3340 | sub mapop { | ||||
| 3341 | my $self = shift; | ||||
| 3342 | my($op, $cx, $name) = @_; | ||||
| 3343 | my($expr, @exprs); | ||||
| 3344 | my $kid = $op->first; # this is the (map|grep)start | ||||
| 3345 | $kid = $kid->first->sibling; # skip a pushmark | ||||
| 3346 | my $code = $kid->first; # skip a null | ||||
| 3347 | if (is_scope $code) { | ||||
| 3348 | $code = "{" . $self->deparse($code, 0) . "} "; | ||||
| 3349 | } else { | ||||
| 3350 | $code = $self->deparse($code, 24); | ||||
| 3351 | $code .= ", " if !null($kid->sibling); | ||||
| 3352 | } | ||||
| 3353 | $kid = $kid->sibling; | ||||
| 3354 | for (; !null($kid); $kid = $kid->sibling) { | ||||
| 3355 | $expr = $self->deparse($kid, 6); | ||||
| 3356 | push @exprs, $expr if defined $expr; | ||||
| 3357 | } | ||||
| 3358 | return $self->maybe_parens_func($self->keyword($name), | ||||
| 3359 | $code . join(", ", @exprs), $cx, 5); | ||||
| 3360 | } | ||||
| 3361 | |||||
| 3362 | sub pp_mapwhile { mapop(@_, "map") } | ||||
| 3363 | sub pp_grepwhile { mapop(@_, "grep") } | ||||
| 3364 | sub pp_mapstart { baseop(@_, "map") } | ||||
| 3365 | sub pp_grepstart { baseop(@_, "grep") } | ||||
| 3366 | |||||
| 3367 | 1 | 100ns | my %uses_intro; | ||
| 3368 | # spent 3.35ms within B::Deparse::BEGIN@3368 which was called:
# once (3.35ms+0s) by YAML::XS::BEGIN@57 at line 3377 | ||||
| 3369 | @uses_intro{ | ||||
| 3370 | 1 | 2.81ms | eval { require B::Op_private } | ||
| 3371 | 1 | 11µs | ? @{$B::Op_private::ops_using{OPpLVAL_INTRO}} | ||
| 3372 | : qw(gvsv rv2sv rv2hv rv2gv rv2av aelem helem aslice | ||||
| 3373 | hslice delete padsv padav padhv enteriter entersub padrange | ||||
| 3374 | pushmark cond_expr refassign list) | ||||
| 3375 | } = (); | ||||
| 3376 | 1 | 6µs | delete @uses_intro{qw( lvref lvrefslice lvavref entersub )}; | ||
| 3377 | 1 | 3.72ms | 1 | 3.35ms | } # spent 3.35ms making 1 call to B::Deparse::BEGIN@3368 |
| 3378 | |||||
| 3379 | sub pp_list { | ||||
| 3380 | my $self = shift; | ||||
| 3381 | my($op, $cx) = @_; | ||||
| 3382 | my($expr, @exprs); | ||||
| 3383 | my $kid = $op->first->sibling; # skip pushmark | ||||
| 3384 | return '' if class($kid) eq 'NULL'; | ||||
| 3385 | my $lop; | ||||
| 3386 | my $local = "either"; # could be local(...), my(...), state(...) or our(...) | ||||
| 3387 | my $type; | ||||
| 3388 | for ($lop = $kid; !null($lop); $lop = $lop->sibling) { | ||||
| 3389 | my $lopname = $lop->name; | ||||
| 3390 | my $loppriv = $lop->private; | ||||
| 3391 | my $newtype; | ||||
| 3392 | if ($lopname =~ /^pad[ash]v$/ && $loppriv & OPpLVAL_INTRO) { | ||||
| 3393 | if ($loppriv & OPpPAD_STATE) { # state() | ||||
| 3394 | ($local = "", last) if $local !~ /^(?:either|state)$/; | ||||
| 3395 | $local = "state"; | ||||
| 3396 | } else { # my() | ||||
| 3397 | ($local = "", last) if $local !~ /^(?:either|my)$/; | ||||
| 3398 | $local = "my"; | ||||
| 3399 | } | ||||
| 3400 | my $padname = $self->padname_sv($lop->targ); | ||||
| 3401 | if ($padname->FLAGS & SVpad_TYPED) { | ||||
| 3402 | $newtype = $padname->SvSTASH->NAME; | ||||
| 3403 | } | ||||
| 3404 | } elsif ($lopname =~ /^(?:gv|rv2)([ash])v$/ | ||||
| 3405 | && $loppriv & OPpOUR_INTRO | ||||
| 3406 | or $lopname eq "null" && class($lop) eq 'UNOP' | ||||
| 3407 | && $lop->first->name eq "gvsv" | ||||
| 3408 | && $lop->first->private & OPpOUR_INTRO) { # our() | ||||
| 3409 | my $newlocal = "local " x !!($loppriv & OPpLVAL_INTRO) . "our"; | ||||
| 3410 | ($local = "", last) | ||||
| 3411 | if $local ne 'either' && $local ne $newlocal; | ||||
| 3412 | $local = $newlocal; | ||||
| 3413 | my $funny = !$1 || $1 eq 's' ? '$' : $1 eq 'a' ? '@' : '%'; | ||||
| 3414 | if (my $t = $self->find_our_type( | ||||
| 3415 | $funny . $self->gv_or_padgv($lop->first)->NAME | ||||
| 3416 | )) { | ||||
| 3417 | $newtype = $t; | ||||
| 3418 | } | ||||
| 3419 | } elsif ($lopname ne 'undef' | ||||
| 3420 | and !($loppriv & OPpLVAL_INTRO) | ||||
| 3421 | || !exists $uses_intro{$lopname eq 'null' | ||||
| 3422 | ? substr B::ppname($lop->targ), 3 | ||||
| 3423 | : $lopname}) | ||||
| 3424 | { | ||||
| 3425 | $local = ""; # or not | ||||
| 3426 | last; | ||||
| 3427 | } elsif ($lopname ne "undef") | ||||
| 3428 | { | ||||
| 3429 | # local() | ||||
| 3430 | ($local = "", last) if $local !~ /^(?:either|local)$/; | ||||
| 3431 | $local = "local"; | ||||
| 3432 | } | ||||
| 3433 | if (defined $type && defined $newtype && $newtype ne $type) { | ||||
| 3434 | $local = ''; | ||||
| 3435 | last; | ||||
| 3436 | } | ||||
| 3437 | $type = $newtype; | ||||
| 3438 | } | ||||
| 3439 | $local = "" if $local eq "either"; # no point if it's all undefs | ||||
| 3440 | $local &&= join ' ', map $self->keyword($_), split / /, $local; | ||||
| 3441 | $local .= " $type " if $local && length $type; | ||||
| 3442 | return $self->deparse($kid, $cx) if null $kid->sibling and not $local; | ||||
| 3443 | for (; !null($kid); $kid = $kid->sibling) { | ||||
| 3444 | if ($local) { | ||||
| 3445 | if (class($kid) eq "UNOP" and $kid->first->name eq "gvsv") { | ||||
| 3446 | $lop = $kid->first; | ||||
| 3447 | } else { | ||||
| 3448 | $lop = $kid; | ||||
| 3449 | } | ||||
| 3450 | $self->{'avoid_local'}{$$lop}++; | ||||
| 3451 | $expr = $self->deparse($kid, 6); | ||||
| 3452 | delete $self->{'avoid_local'}{$$lop}; | ||||
| 3453 | } else { | ||||
| 3454 | $expr = $self->deparse($kid, 6); | ||||
| 3455 | } | ||||
| 3456 | push @exprs, $expr; | ||||
| 3457 | } | ||||
| 3458 | if ($local) { | ||||
| 3459 | return "$local(" . join(", ", @exprs) . ")"; | ||||
| 3460 | } else { | ||||
| 3461 | return $self->maybe_parens( join(", ", @exprs), $cx, 6); | ||||
| 3462 | } | ||||
| 3463 | } | ||||
| 3464 | |||||
| 3465 | sub is_ifelse_cont { | ||||
| 3466 | my $op = shift; | ||||
| 3467 | return ($op->name eq "null" and class($op) eq "UNOP" | ||||
| 3468 | and $op->first->name =~ /^(and|cond_expr)$/ | ||||
| 3469 | and is_scope($op->first->first->sibling)); | ||||
| 3470 | } | ||||
| 3471 | |||||
| 3472 | sub pp_cond_expr { | ||||
| 3473 | my $self = shift; | ||||
| 3474 | my($op, $cx) = @_; | ||||
| 3475 | my $cond = $op->first; | ||||
| 3476 | my $true = $cond->sibling; | ||||
| 3477 | my $false = $true->sibling; | ||||
| 3478 | my $cuddle = $self->{'cuddle'}; | ||||
| 3479 | unless ($cx < 1 and (is_scope($true) and $true->name ne "null") and | ||||
| 3480 | (is_scope($false) || is_ifelse_cont($false)) | ||||
| 3481 | and $self->{'expand'} < 7) { | ||||
| 3482 | $cond = $self->deparse($cond, 8); | ||||
| 3483 | $true = $self->deparse($true, 6); | ||||
| 3484 | $false = $self->deparse($false, 8); | ||||
| 3485 | return $self->maybe_parens("$cond ? $true : $false", $cx, 8); | ||||
| 3486 | } | ||||
| 3487 | |||||
| 3488 | $cond = $self->deparse($cond, 1); | ||||
| 3489 | $true = $self->deparse($true, 0); | ||||
| 3490 | my $head = $self->keyword("if") . " ($cond) {\n\t$true\n\b}"; | ||||
| 3491 | my @elsifs; | ||||
| 3492 | my $elsif; | ||||
| 3493 | while (!null($false) and is_ifelse_cont($false)) { | ||||
| 3494 | my $newop = $false->first; | ||||
| 3495 | my $newcond = $newop->first; | ||||
| 3496 | my $newtrue = $newcond->sibling; | ||||
| 3497 | $false = $newtrue->sibling; # last in chain is OP_AND => no else | ||||
| 3498 | if ($newcond->name eq "lineseq") | ||||
| 3499 | { | ||||
| 3500 | # lineseq to ensure correct line numbers in elsif() | ||||
| 3501 | # Bug #37302 fixed by change #33710. | ||||
| 3502 | $newcond = $newcond->first->sibling; | ||||
| 3503 | } | ||||
| 3504 | $newcond = $self->deparse($newcond, 1); | ||||
| 3505 | $newtrue = $self->deparse($newtrue, 0); | ||||
| 3506 | $elsif ||= $self->keyword("elsif"); | ||||
| 3507 | push @elsifs, "$elsif ($newcond) {\n\t$newtrue\n\b}"; | ||||
| 3508 | } | ||||
| 3509 | if (!null($false)) { | ||||
| 3510 | $false = $cuddle . $self->keyword("else") . " {\n\t" . | ||||
| 3511 | $self->deparse($false, 0) . "\n\b}\cK"; | ||||
| 3512 | } else { | ||||
| 3513 | $false = "\cK"; | ||||
| 3514 | } | ||||
| 3515 | return $head . join($cuddle, "", @elsifs) . $false; | ||||
| 3516 | } | ||||
| 3517 | |||||
| 3518 | sub pp_once { | ||||
| 3519 | my ($self, $op, $cx) = @_; | ||||
| 3520 | my $cond = $op->first; | ||||
| 3521 | my $true = $cond->sibling; | ||||
| 3522 | |||||
| 3523 | my $ret = $self->deparse($true, $cx); | ||||
| 3524 | $ret =~ s/^(\(?)\$/$1 . $self->keyword("state") . ' $'/e; | ||||
| 3525 | $ret; | ||||
| 3526 | } | ||||
| 3527 | |||||
| 3528 | sub loop_common { | ||||
| 3529 | my $self = shift; | ||||
| 3530 | my($op, $cx, $init) = @_; | ||||
| 3531 | my $enter = $op->first; | ||||
| 3532 | my $kid = $enter->sibling; | ||||
| 3533 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
| 3534 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
| 3535 | my $head = ""; | ||||
| 3536 | my $bare = 0; | ||||
| 3537 | my $body; | ||||
| 3538 | my $cond = undef; | ||||
| 3539 | my $name; | ||||
| 3540 | if ($kid->name eq "lineseq") { # bare or infinite loop | ||||
| 3541 | if ($kid->last->name eq "unstack") { # infinite | ||||
| 3542 | $head = "while (1) "; # Can't use for(;;) if there's a continue | ||||
| 3543 | $cond = ""; | ||||
| 3544 | } else { | ||||
| 3545 | $bare = 1; | ||||
| 3546 | } | ||||
| 3547 | $body = $kid; | ||||
| 3548 | } elsif ($enter->name eq "enteriter") { # foreach | ||||
| 3549 | my $ary = $enter->first->sibling; # first was pushmark | ||||
| 3550 | my $var = $ary->sibling; | ||||
| 3551 | if ($ary->name eq 'null' and $enter->private & OPpITER_REVERSED) { | ||||
| 3552 | # "reverse" was optimised away | ||||
| 3553 | $ary = listop($self, $ary->first->sibling, 1, 'reverse'); | ||||
| 3554 | } elsif ($enter->flags & OPf_STACKED | ||||
| 3555 | and not null $ary->first->sibling->sibling) | ||||
| 3556 | { | ||||
| 3557 | $ary = $self->deparse($ary->first->sibling, 9) . " .. " . | ||||
| 3558 | $self->deparse($ary->first->sibling->sibling, 9); | ||||
| 3559 | } else { | ||||
| 3560 | $ary = $self->deparse($ary, 1); | ||||
| 3561 | } | ||||
| 3562 | if (null $var) { | ||||
| 3563 | $var = $self->pp_padsv($enter, 1, 1); | ||||
| 3564 | } elsif ($var->name eq "rv2gv") { | ||||
| 3565 | $var = $self->pp_rv2sv($var, 1); | ||||
| 3566 | if ($enter->private & OPpOUR_INTRO) { | ||||
| 3567 | # our declarations don't have package names | ||||
| 3568 | $var =~ s/^(.).*::/$1/; | ||||
| 3569 | $var = "our $var"; | ||||
| 3570 | } | ||||
| 3571 | } elsif ($var->name eq "gv") { | ||||
| 3572 | $var = "\$" . $self->deparse($var, 1); | ||||
| 3573 | } else { | ||||
| 3574 | $var = $self->deparse($var, 1); | ||||
| 3575 | } | ||||
| 3576 | $body = $kid->first->first->sibling; # skip OP_AND and OP_ITER | ||||
| 3577 | if (!is_state $body->first and $body->first->name !~ /^(?:stub|leave|scope)$/) { | ||||
| 3578 | confess unless $var eq '$_'; | ||||
| 3579 | $body = $body->first; | ||||
| 3580 | return $self->deparse($body, 2) . " " | ||||
| 3581 | . $self->keyword("foreach") . " ($ary)"; | ||||
| 3582 | } | ||||
| 3583 | $head = "foreach $var ($ary) "; | ||||
| 3584 | } elsif ($kid->name eq "null") { # while/until | ||||
| 3585 | $kid = $kid->first; | ||||
| 3586 | $name = {"and" => "while", "or" => "until"}->{$kid->name}; | ||||
| 3587 | $cond = $kid->first; | ||||
| 3588 | $body = $kid->first->sibling; | ||||
| 3589 | } elsif ($kid->name eq "stub") { # bare and empty | ||||
| 3590 | return "{;}"; # {} could be a hashref | ||||
| 3591 | } | ||||
| 3592 | # If there isn't a continue block, then the next pointer for the loop | ||||
| 3593 | # will point to the unstack, which is kid's last child, except | ||||
| 3594 | # in a bare loop, when it will point to the leaveloop. When neither of | ||||
| 3595 | # these conditions hold, then the second-to-last child is the continue | ||||
| 3596 | # block (or the last in a bare loop). | ||||
| 3597 | my $cont_start = $enter->nextop; | ||||
| 3598 | my $cont; | ||||
| 3599 | my $precond; | ||||
| 3600 | my $postcond; | ||||
| 3601 | if ($$cont_start != $$op && ${$cont_start} != ${$body->last}) { | ||||
| 3602 | if ($bare) { | ||||
| 3603 | $cont = $body->last; | ||||
| 3604 | } else { | ||||
| 3605 | $cont = $body->first; | ||||
| 3606 | while (!null($cont->sibling->sibling)) { | ||||
| 3607 | $cont = $cont->sibling; | ||||
| 3608 | } | ||||
| 3609 | } | ||||
| 3610 | my $state = $body->first; | ||||
| 3611 | my $cuddle = $self->{'cuddle'}; | ||||
| 3612 | my @states; | ||||
| 3613 | for (; $$state != $$cont; $state = $state->sibling) { | ||||
| 3614 | push @states, $state; | ||||
| 3615 | } | ||||
| 3616 | $body = $self->lineseq(undef, 0, @states); | ||||
| 3617 | if (defined $cond and not is_scope $cont and $self->{'expand'} < 3) { | ||||
| 3618 | $precond = "for ($init; "; | ||||
| 3619 | $postcond = "; " . $self->deparse($cont, 1) .") "; | ||||
| 3620 | $cont = "\cK"; | ||||
| 3621 | } else { | ||||
| 3622 | $cont = $cuddle . "continue {\n\t" . | ||||
| 3623 | $self->deparse($cont, 0) . "\n\b}\cK"; | ||||
| 3624 | } | ||||
| 3625 | } else { | ||||
| 3626 | return "" if !defined $body; | ||||
| 3627 | if (length $init) { | ||||
| 3628 | $precond = "for ($init; "; | ||||
| 3629 | $postcond = ";) "; | ||||
| 3630 | } | ||||
| 3631 | $cont = "\cK"; | ||||
| 3632 | $body = $self->deparse($body, 0); | ||||
| 3633 | } | ||||
| 3634 | if ($precond) { # for(;;) | ||||
| 3635 | $cond &&= $name eq 'until' | ||||
| 3636 | ? listop($self, undef, 1, "not", $cond->first) | ||||
| 3637 | : $self->deparse($cond, 1); | ||||
| 3638 | $head = "$precond$cond$postcond"; | ||||
| 3639 | } | ||||
| 3640 | if ($name && !$head) { | ||||
| 3641 | ref $cond and $cond = $self->deparse($cond, 1); | ||||
| 3642 | $head = "$name ($cond) "; | ||||
| 3643 | } | ||||
| 3644 | $head =~ s/^(for(?:each)?|while|until)/$self->keyword($1)/e; | ||||
| 3645 | $body =~ s/;?$/;\n/; | ||||
| 3646 | |||||
| 3647 | return $head . "{\n\t" . $body . "\b}" . $cont; | ||||
| 3648 | } | ||||
| 3649 | |||||
| 3650 | sub pp_leaveloop { shift->loop_common(@_, "") } | ||||
| 3651 | |||||
| 3652 | sub for_loop { | ||||
| 3653 | my $self = shift; | ||||
| 3654 | my($op, $cx) = @_; | ||||
| 3655 | my $init = $self->deparse($op, 1); | ||||
| 3656 | my $s = $op->sibling; | ||||
| 3657 | my $ll = $s->name eq "unstack" ? $s->sibling : $s->first->sibling; | ||||
| 3658 | return $self->loop_common($ll, $cx, $init); | ||||
| 3659 | } | ||||
| 3660 | |||||
| 3661 | sub pp_leavetry { | ||||
| 3662 | my $self = shift; | ||||
| 3663 | return "eval {\n\t" . $self->pp_leave(@_) . "\n\b}"; | ||||
| 3664 | } | ||||
| 3665 | |||||
| 3666 | sub _op_is_or_was { | ||||
| 3667 | my ($op, $expect_type) = @_; | ||||
| 3668 | my $type = $op->type; | ||||
| 3669 | return($type == $expect_type | ||||
| 3670 | || ($type == OP_NULL && $op->targ == $expect_type)); | ||||
| 3671 | } | ||||
| 3672 | |||||
| 3673 | sub pp_null { | ||||
| 3674 | my($self, $op, $cx) = @_; | ||||
| 3675 | if (class($op) eq "OP") { | ||||
| 3676 | # old value is lost | ||||
| 3677 | return $self->{'ex_const'} if $op->targ == OP_CONST; | ||||
| 3678 | } elsif (class ($op) eq "COP") { | ||||
| 3679 | return &pp_nextstate; | ||||
| 3680 | } elsif ($op->first->name eq 'pushmark' | ||||
| 3681 | or $op->first->name eq 'null' | ||||
| 3682 | && $op->first->targ == OP_PUSHMARK | ||||
| 3683 | && _op_is_or_was($op, OP_LIST)) { | ||||
| 3684 | return $self->pp_list($op, $cx); | ||||
| 3685 | } elsif ($op->first->name eq "enter") { | ||||
| 3686 | return $self->pp_leave($op, $cx); | ||||
| 3687 | } elsif ($op->first->name eq "leave") { | ||||
| 3688 | return $self->pp_leave($op->first, $cx); | ||||
| 3689 | } elsif ($op->first->name eq "scope") { | ||||
| 3690 | return $self->pp_scope($op->first, $cx); | ||||
| 3691 | } elsif ($op->targ == OP_STRINGIFY) { | ||||
| 3692 | return $self->dquote($op, $cx); | ||||
| 3693 | } elsif ($op->targ == OP_GLOB) { | ||||
| 3694 | return $self->pp_glob( | ||||
| 3695 | $op->first # entersub | ||||
| 3696 | ->first # ex-list | ||||
| 3697 | ->first # pushmark | ||||
| 3698 | ->sibling, # glob | ||||
| 3699 | $cx | ||||
| 3700 | ); | ||||
| 3701 | } elsif (!null($op->first->sibling) and | ||||
| 3702 | $op->first->sibling->name eq "readline" and | ||||
| 3703 | $op->first->sibling->flags & OPf_STACKED) { | ||||
| 3704 | return $self->maybe_parens($self->deparse($op->first, 7) . " = " | ||||
| 3705 | . $self->deparse($op->first->sibling, 7), | ||||
| 3706 | $cx, 7); | ||||
| 3707 | } elsif (!null($op->first->sibling) and | ||||
| 3708 | $op->first->sibling->name =~ /^transr?\z/ and | ||||
| 3709 | $op->first->sibling->flags & OPf_STACKED) { | ||||
| 3710 | return $self->maybe_parens($self->deparse($op->first, 20) . " =~ " | ||||
| 3711 | . $self->deparse($op->first->sibling, 20), | ||||
| 3712 | $cx, 20); | ||||
| 3713 | } elsif ($op->flags & OPf_SPECIAL && $cx < 1 && !$op->targ) { | ||||
| 3714 | return ($self->lex_in_scope("&do") ? "CORE::do" : "do") | ||||
| 3715 | . " {\n\t". $self->deparse($op->first, $cx) ."\n\b};"; | ||||
| 3716 | } elsif (!null($op->first->sibling) and | ||||
| 3717 | $op->first->sibling->name eq "null" and | ||||
| 3718 | class($op->first->sibling) eq "UNOP" and | ||||
| 3719 | $op->first->sibling->first->flags & OPf_STACKED and | ||||
| 3720 | $op->first->sibling->first->name eq "rcatline") { | ||||
| 3721 | return $self->maybe_parens($self->deparse($op->first, 18) . " .= " | ||||
| 3722 | . $self->deparse($op->first->sibling, 18), | ||||
| 3723 | $cx, 18); | ||||
| 3724 | } else { | ||||
| 3725 | return $self->deparse($op->first, $cx); | ||||
| 3726 | } | ||||
| 3727 | } | ||||
| 3728 | |||||
| 3729 | sub padname { | ||||
| 3730 | my $self = shift; | ||||
| 3731 | my $targ = shift; | ||||
| 3732 | return $self->padname_sv($targ)->PVX; | ||||
| 3733 | } | ||||
| 3734 | |||||
| 3735 | sub padany { | ||||
| 3736 | my $self = shift; | ||||
| 3737 | my $op = shift; | ||||
| 3738 | return substr($self->padname($op->targ), 1); # skip $/@/% | ||||
| 3739 | } | ||||
| 3740 | |||||
| 3741 | sub pp_padsv { | ||||
| 3742 | my $self = shift; | ||||
| 3743 | my($op, $cx, $forbid_parens) = @_; | ||||
| 3744 | my $targ = $op->targ; | ||||
| 3745 | return $self->maybe_my($op, $cx, $self->padname($targ), | ||||
| 3746 | $self->padname_sv($targ), | ||||
| 3747 | $forbid_parens); | ||||
| 3748 | } | ||||
| 3749 | |||||
| 3750 | sub pp_padav { pp_padsv(@_) } | ||||
| 3751 | sub pp_padhv { pp_padsv(@_) } | ||||
| 3752 | |||||
| 3753 | sub gv_or_padgv { | ||||
| 3754 | my $self = shift; | ||||
| 3755 | my $op = shift; | ||||
| 3756 | if (class($op) eq "PADOP") { | ||||
| 3757 | return $self->padval($op->padix); | ||||
| 3758 | } else { # class($op) eq "SVOP" | ||||
| 3759 | return $op->gv; | ||||
| 3760 | } | ||||
| 3761 | } | ||||
| 3762 | |||||
| 3763 | sub pp_gvsv { | ||||
| 3764 | my $self = shift; | ||||
| 3765 | my($op, $cx) = @_; | ||||
| 3766 | my $gv = $self->gv_or_padgv($op); | ||||
| 3767 | return $self->maybe_local($op, $cx, $self->stash_variable("\$", | ||||
| 3768 | $self->gv_name($gv), $cx)); | ||||
| 3769 | } | ||||
| 3770 | |||||
| 3771 | sub pp_gv { | ||||
| 3772 | my $self = shift; | ||||
| 3773 | my($op, $cx) = @_; | ||||
| 3774 | my $gv = $self->gv_or_padgv($op); | ||||
| 3775 | return $self->gv_name($gv); | ||||
| 3776 | } | ||||
| 3777 | |||||
| 3778 | sub pp_aelemfast_lex { | ||||
| 3779 | my $self = shift; | ||||
| 3780 | my($op, $cx) = @_; | ||||
| 3781 | my $name = $self->padname($op->targ); | ||||
| 3782 | $name =~ s/^@/\$/; | ||||
| 3783 | my $i = $op->private; | ||||
| 3784 | $i -= 256 if $i > 127; | ||||
| 3785 | return $name . "[" . ($i + $self->{'arybase'}) . "]"; | ||||
| 3786 | } | ||||
| 3787 | |||||
| 3788 | sub pp_aelemfast { | ||||
| 3789 | my $self = shift; | ||||
| 3790 | my($op, $cx) = @_; | ||||
| 3791 | # optimised PADAV, pre 5.15 | ||||
| 3792 | return $self->pp_aelemfast_lex(@_) if ($op->flags & OPf_SPECIAL); | ||||
| 3793 | |||||
| 3794 | my $gv = $self->gv_or_padgv($op); | ||||
| 3795 | my($name,$quoted) = $self->stash_variable_name('@',$gv); | ||||
| 3796 | $name = $quoted ? "$name->" : '$' . $name; | ||||
| 3797 | my $i = $op->private; | ||||
| 3798 | $i -= 256 if $i > 127; | ||||
| 3799 | return $name . "[" . ($i + $self->{'arybase'}) . "]"; | ||||
| 3800 | } | ||||
| 3801 | |||||
| 3802 | sub rv2x { | ||||
| 3803 | my $self = shift; | ||||
| 3804 | my($op, $cx, $type) = @_; | ||||
| 3805 | |||||
| 3806 | if (class($op) eq 'NULL' || !$op->can("first")) { | ||||
| 3807 | carp("Unexpected op in pp_rv2x"); | ||||
| 3808 | return 'XXX'; | ||||
| 3809 | } | ||||
| 3810 | my $kid = $op->first; | ||||
| 3811 | if ($kid->name eq "gv") { | ||||
| 3812 | return $self->stash_variable($type, $self->deparse($kid, 0), $cx); | ||||
| 3813 | } elsif (is_scalar $kid) { | ||||
| 3814 | my $str = $self->deparse($kid, 0); | ||||
| 3815 | if ($str =~ /^\$([^\w\d])\z/) { | ||||
| 3816 | # "$$+" isn't a legal way to write the scalar dereference | ||||
| 3817 | # of $+, since the lexer can't tell you aren't trying to | ||||
| 3818 | # do something like "$$ + 1" to get one more than your | ||||
| 3819 | # PID. Either "${$+}" or "$${+}" are workable | ||||
| 3820 | # disambiguations, but if the programmer did the former, | ||||
| 3821 | # they'd be in the "else" clause below rather than here. | ||||
| 3822 | # It's not clear if this should somehow be unified with | ||||
| 3823 | # the code in dq and re_dq that also adds lexer | ||||
| 3824 | # disambiguation braces. | ||||
| 3825 | $str = '$' . "{$1}"; #' | ||||
| 3826 | } | ||||
| 3827 | return $type . $str; | ||||
| 3828 | } else { | ||||
| 3829 | return $type . "{" . $self->deparse($kid, 0) . "}"; | ||||
| 3830 | } | ||||
| 3831 | } | ||||
| 3832 | |||||
| 3833 | sub pp_rv2sv { maybe_local(@_, rv2x(@_, "\$")) } | ||||
| 3834 | sub pp_rv2hv { maybe_local(@_, rv2x(@_, "%")) } | ||||
| 3835 | sub pp_rv2gv { maybe_local(@_, rv2x(@_, "*")) } | ||||
| 3836 | |||||
| 3837 | # skip rv2av | ||||
| 3838 | sub pp_av2arylen { | ||||
| 3839 | my $self = shift; | ||||
| 3840 | my($op, $cx) = @_; | ||||
| 3841 | if ($op->first->name eq "padav") { | ||||
| 3842 | return $self->maybe_local($op, $cx, '$#' . $self->padany($op->first)); | ||||
| 3843 | } else { | ||||
| 3844 | return $self->maybe_local($op, $cx, | ||||
| 3845 | $self->rv2x($op->first, $cx, '$#')); | ||||
| 3846 | } | ||||
| 3847 | } | ||||
| 3848 | |||||
| 3849 | # skip down to the old, ex-rv2cv | ||||
| 3850 | sub pp_rv2cv { | ||||
| 3851 | my ($self, $op, $cx) = @_; | ||||
| 3852 | if (!null($op->first) && $op->first->name eq 'null' && | ||||
| 3853 | $op->first->targ == OP_LIST) | ||||
| 3854 | { | ||||
| 3855 | return $self->rv2x($op->first->first->sibling, $cx, "&") | ||||
| 3856 | } | ||||
| 3857 | else { | ||||
| 3858 | return $self->rv2x($op, $cx, "") | ||||
| 3859 | } | ||||
| 3860 | } | ||||
| 3861 | |||||
| 3862 | sub list_const { | ||||
| 3863 | my $self = shift; | ||||
| 3864 | my($cx, @list) = @_; | ||||
| 3865 | my @a = map $self->const($_, 6), @list; | ||||
| 3866 | if (@a == 0) { | ||||
| 3867 | return "()"; | ||||
| 3868 | } elsif (@a == 1) { | ||||
| 3869 | return $a[0]; | ||||
| 3870 | } elsif ( @a > 2 and !grep(!/^-?\d+$/, @a)) { | ||||
| 3871 | # collapse (-1,0,1,2) into (-1..2) | ||||
| 3872 | my ($s, $e) = @a[0,-1]; | ||||
| 3873 | my $i = $s; | ||||
| 3874 | return $self->maybe_parens("$s..$e", $cx, 9) | ||||
| 3875 | unless grep $i++ != $_, @a; | ||||
| 3876 | } | ||||
| 3877 | return $self->maybe_parens(join(", ", @a), $cx, 6); | ||||
| 3878 | } | ||||
| 3879 | |||||
| 3880 | sub pp_rv2av { | ||||
| 3881 | my $self = shift; | ||||
| 3882 | my($op, $cx) = @_; | ||||
| 3883 | my $kid = $op->first; | ||||
| 3884 | if ($kid->name eq "const") { # constant list | ||||
| 3885 | my $av = $self->const_sv($kid); | ||||
| 3886 | return $self->list_const($cx, $av->ARRAY); | ||||
| 3887 | } else { | ||||
| 3888 | return $self->maybe_local($op, $cx, $self->rv2x($op, $cx, "\@")); | ||||
| 3889 | } | ||||
| 3890 | } | ||||
| 3891 | |||||
| 3892 | sub is_subscriptable { | ||||
| 3893 | my $op = shift; | ||||
| 3894 | if ($op->name =~ /^([ahg]elem|multideref$)/) { | ||||
| 3895 | return 1; | ||||
| 3896 | } elsif ($op->name eq "entersub") { | ||||
| 3897 | my $kid = $op->first; | ||||
| 3898 | return 0 unless null $kid->sibling; | ||||
| 3899 | $kid = $kid->first; | ||||
| 3900 | $kid = $kid->sibling until null $kid->sibling; | ||||
| 3901 | return 0 if is_scope($kid); | ||||
| 3902 | $kid = $kid->first; | ||||
| 3903 | return 0 if $kid->name eq "gv" || $kid->name eq "padcv"; | ||||
| 3904 | return 0 if is_scalar($kid); | ||||
| 3905 | return is_subscriptable($kid); | ||||
| 3906 | } else { | ||||
| 3907 | return 0; | ||||
| 3908 | } | ||||
| 3909 | } | ||||
| 3910 | |||||
| 3911 | sub elem_or_slice_array_name | ||||
| 3912 | { | ||||
| 3913 | my $self = shift; | ||||
| 3914 | my ($array, $left, $padname, $allow_arrow) = @_; | ||||
| 3915 | |||||
| 3916 | if ($array->name eq $padname) { | ||||
| 3917 | return $self->padany($array); | ||||
| 3918 | } elsif (is_scope($array)) { # ${expr}[0] | ||||
| 3919 | return "{" . $self->deparse($array, 0) . "}"; | ||||
| 3920 | } elsif ($array->name eq "gv") { | ||||
| 3921 | ($array, my $quoted) = | ||||
| 3922 | $self->stash_variable_name( | ||||
| 3923 | $left eq '[' ? '@' : '%', $self->gv_or_padgv($array) | ||||
| 3924 | ); | ||||
| 3925 | if (!$allow_arrow && $quoted) { | ||||
| 3926 | # This cannot happen. | ||||
| 3927 | die "Invalid variable name $array for slice"; | ||||
| 3928 | } | ||||
| 3929 | return $quoted ? "$array->" : $array; | ||||
| 3930 | } elsif (!$allow_arrow || is_scalar $array) { # $x[0], $$x[0], ... | ||||
| 3931 | return $self->deparse($array, 24); | ||||
| 3932 | } else { | ||||
| 3933 | return undef; | ||||
| 3934 | } | ||||
| 3935 | } | ||||
| 3936 | |||||
| 3937 | sub elem_or_slice_single_index | ||||
| 3938 | { | ||||
| 3939 | my $self = shift; | ||||
| 3940 | my ($idx) = @_; | ||||
| 3941 | |||||
| 3942 | $idx = $self->deparse($idx, 1); | ||||
| 3943 | |||||
| 3944 | # Outer parens in an array index will confuse perl | ||||
| 3945 | # if we're interpolating in a regular expression, i.e. | ||||
| 3946 | # /$x$foo[(-1)]/ is *not* the same as /$x$foo[-1]/ | ||||
| 3947 | # | ||||
| 3948 | # If $self->{parens}, then an initial '(' will | ||||
| 3949 | # definitely be paired with a final ')'. If | ||||
| 3950 | # !$self->{parens}, the misleading parens won't | ||||
| 3951 | # have been added in the first place. | ||||
| 3952 | # | ||||
| 3953 | # [You might think that we could get "(...)...(...)" | ||||
| 3954 | # where the initial and final parens do not match | ||||
| 3955 | # each other. But we can't, because the above would | ||||
| 3956 | # only happen if there's an infix binop between the | ||||
| 3957 | # two pairs of parens, and *that* means that the whole | ||||
| 3958 | # expression would be parenthesized as well.] | ||||
| 3959 | # | ||||
| 3960 | $idx =~ s/^\((.*)\)$/$1/ if $self->{'parens'}; | ||||
| 3961 | |||||
| 3962 | # Hash-element braces will autoquote a bareword inside themselves. | ||||
| 3963 | # We need to make sure that C<$hash{warn()}> doesn't come out as | ||||
| 3964 | # C<$hash{warn}>, which has a quite different meaning. Currently | ||||
| 3965 | # B::Deparse will always quote strings, even if the string was a | ||||
| 3966 | # bareword in the original (i.e. the OPpCONST_BARE flag is ignored | ||||
| 3967 | # for constant strings.) So we can cheat slightly here - if we see | ||||
| 3968 | # a bareword, we know that it is supposed to be a function call. | ||||
| 3969 | # | ||||
| 3970 | $idx =~ s/^([A-Za-z_]\w*)$/$1()/; | ||||
| 3971 | |||||
| 3972 | return $idx; | ||||
| 3973 | } | ||||
| 3974 | |||||
| 3975 | sub elem { | ||||
| 3976 | my $self = shift; | ||||
| 3977 | my ($op, $cx, $left, $right, $padname) = @_; | ||||
| 3978 | my($array, $idx) = ($op->first, $op->first->sibling); | ||||
| 3979 | |||||
| 3980 | $idx = $self->elem_or_slice_single_index($idx); | ||||
| 3981 | |||||
| 3982 | unless ($array->name eq $padname) { # Maybe this has been fixed | ||||
| 3983 | $array = $array->first; # skip rv2av (or ex-rv2av in _53+) | ||||
| 3984 | } | ||||
| 3985 | if (my $array_name=$self->elem_or_slice_array_name | ||||
| 3986 | ($array, $left, $padname, 1)) { | ||||
| 3987 | return ($array_name =~ /->\z/ | ||||
| 3988 | ? $array_name | ||||
| 3989 | : $array_name eq '#' ? '${#}' : "\$" . $array_name) | ||||
| 3990 | . $left . $idx . $right; | ||||
| 3991 | } else { | ||||
| 3992 | # $x[20][3]{hi} or expr->[20] | ||||
| 3993 | my $arrow = is_subscriptable($array) ? "" : "->"; | ||||
| 3994 | return $self->deparse($array, 24) . $arrow . $left . $idx . $right; | ||||
| 3995 | } | ||||
| 3996 | |||||
| 3997 | } | ||||
| 3998 | |||||
| 3999 | # a simplified version of elem_or_slice_array_name() | ||||
| 4000 | # for the use of pp_multideref | ||||
| 4001 | |||||
| 4002 | sub multideref_var_name { | ||||
| 4003 | my $self = shift; | ||||
| 4004 | my ($gv, $is_hash) = @_; | ||||
| 4005 | |||||
| 4006 | my ($name, $quoted) = | ||||
| 4007 | $self->stash_variable_name( $is_hash ? '%' : '@', $gv); | ||||
| 4008 | return $quoted ? "$name->" | ||||
| 4009 | : $name eq '#' | ||||
| 4010 | ? '${#}' # avoid ${#}[1] => $#[1] | ||||
| 4011 | : '$' . $name; | ||||
| 4012 | } | ||||
| 4013 | |||||
| 4014 | |||||
| 4015 | sub pp_multideref { | ||||
| 4016 | my $self = shift; | ||||
| 4017 | my($op, $cx) = @_; | ||||
| 4018 | my $text = ""; | ||||
| 4019 | |||||
| 4020 | if ($op->private & OPpMULTIDEREF_EXISTS) { | ||||
| 4021 | $text = $self->keyword("exists"). " "; | ||||
| 4022 | } | ||||
| 4023 | elsif ($op->private & OPpMULTIDEREF_DELETE) { | ||||
| 4024 | $text = $self->keyword("delete"). " "; | ||||
| 4025 | } | ||||
| 4026 | elsif ($op->private & OPpLVAL_INTRO) { | ||||
| 4027 | $text = $self->keyword("local"). " "; | ||||
| 4028 | } | ||||
| 4029 | |||||
| 4030 | if ($op->first && ($op->first->flags & OPf_KIDS)) { | ||||
| 4031 | # arbitrary initial expression, e.g. f(1,2,3)->[...] | ||||
| 4032 | $text .= $self->deparse($op->first, 24); | ||||
| 4033 | } | ||||
| 4034 | |||||
| 4035 | my @items = $op->aux_list($self->{curcv}); | ||||
| 4036 | my $actions = shift @items; | ||||
| 4037 | |||||
| 4038 | my $is_hash; | ||||
| 4039 | my $derefs = 0; | ||||
| 4040 | |||||
| 4041 | while (1) { | ||||
| 4042 | if (($actions & MDEREF_ACTION_MASK) == MDEREF_reload) { | ||||
| 4043 | $actions = shift @items; | ||||
| 4044 | next; | ||||
| 4045 | } | ||||
| 4046 | |||||
| 4047 | $is_hash = ( | ||||
| 4048 | ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_pop_rv2hv_helem | ||||
| 4049 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvsv_vivify_rv2hv_helem | ||||
| 4050 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padsv_vivify_rv2hv_helem | ||||
| 4051 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_vivify_rv2hv_helem | ||||
| 4052 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padhv_helem | ||||
| 4053 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvhv_helem | ||||
| 4054 | ); | ||||
| 4055 | |||||
| 4056 | if ( ($actions & MDEREF_ACTION_MASK) == MDEREF_AV_padav_aelem | ||||
| 4057 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padhv_helem) | ||||
| 4058 | { | ||||
| 4059 | $derefs = 1; | ||||
| 4060 | $text .= '$' . substr($self->padname(shift @items), 1); | ||||
| 4061 | } | ||||
| 4062 | elsif ( ($actions & MDEREF_ACTION_MASK) == MDEREF_AV_gvav_aelem | ||||
| 4063 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvhv_helem) | ||||
| 4064 | { | ||||
| 4065 | $derefs = 1; | ||||
| 4066 | $text .= $self->multideref_var_name(shift @items, $is_hash); | ||||
| 4067 | } | ||||
| 4068 | else { | ||||
| 4069 | if ( ($actions & MDEREF_ACTION_MASK) == | ||||
| 4070 | MDEREF_AV_padsv_vivify_rv2av_aelem | ||||
| 4071 | || ($actions & MDEREF_ACTION_MASK) == | ||||
| 4072 | MDEREF_HV_padsv_vivify_rv2hv_helem) | ||||
| 4073 | { | ||||
| 4074 | $text .= $self->padname(shift @items); | ||||
| 4075 | } | ||||
| 4076 | elsif ( ($actions & MDEREF_ACTION_MASK) == | ||||
| 4077 | MDEREF_AV_gvsv_vivify_rv2av_aelem | ||||
| 4078 | || ($actions & MDEREF_ACTION_MASK) == | ||||
| 4079 | MDEREF_HV_gvsv_vivify_rv2hv_helem) | ||||
| 4080 | { | ||||
| 4081 | $text .= $self->multideref_var_name(shift @items, $is_hash); | ||||
| 4082 | } | ||||
| 4083 | elsif ( ($actions & MDEREF_ACTION_MASK) == | ||||
| 4084 | MDEREF_AV_pop_rv2av_aelem | ||||
| 4085 | || ($actions & MDEREF_ACTION_MASK) == | ||||
| 4086 | MDEREF_HV_pop_rv2hv_helem) | ||||
| 4087 | { | ||||
| 4088 | if ( ($op->flags & OPf_KIDS) | ||||
| 4089 | && ( _op_is_or_was($op->first, OP_RV2AV) | ||||
| 4090 | || _op_is_or_was($op->first, OP_RV2HV)) | ||||
| 4091 | && ($op->first->flags & OPf_KIDS) | ||||
| 4092 | && ( _op_is_or_was($op->first->first, OP_AELEM) | ||||
| 4093 | || _op_is_or_was($op->first->first, OP_HELEM)) | ||||
| 4094 | ) | ||||
| 4095 | { | ||||
| 4096 | $derefs++; | ||||
| 4097 | } | ||||
| 4098 | } | ||||
| 4099 | |||||
| 4100 | $text .= '->' if !$derefs++; | ||||
| 4101 | } | ||||
| 4102 | |||||
| 4103 | |||||
| 4104 | if (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_none) { | ||||
| 4105 | last; | ||||
| 4106 | } | ||||
| 4107 | |||||
| 4108 | $text .= $is_hash ? '{' : '['; | ||||
| 4109 | |||||
| 4110 | if (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_const) { | ||||
| 4111 | my $key = shift @items; | ||||
| 4112 | if ($is_hash) { | ||||
| 4113 | $text .= $self->const($key, $cx); | ||||
| 4114 | } | ||||
| 4115 | else { | ||||
| 4116 | $text .= $key; | ||||
| 4117 | } | ||||
| 4118 | } | ||||
| 4119 | elsif (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_padsv) { | ||||
| 4120 | $text .= $self->padname(shift @items); | ||||
| 4121 | } | ||||
| 4122 | elsif (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_gvsv) { | ||||
| 4123 | $text .= '$' . ($self->stash_variable_name('$', shift @items))[0]; | ||||
| 4124 | } | ||||
| 4125 | |||||
| 4126 | $text .= $is_hash ? '}' : ']'; | ||||
| 4127 | |||||
| 4128 | if ($actions & MDEREF_FLAG_last) { | ||||
| 4129 | last; | ||||
| 4130 | } | ||||
| 4131 | $actions >>= MDEREF_SHIFT; | ||||
| 4132 | } | ||||
| 4133 | |||||
| 4134 | return $text; | ||||
| 4135 | } | ||||
| 4136 | |||||
| 4137 | |||||
| 4138 | sub pp_aelem { maybe_local(@_, elem(@_, "[", "]", "padav")) } | ||||
| 4139 | sub pp_helem { maybe_local(@_, elem(@_, "{", "}", "padhv")) } | ||||
| 4140 | |||||
| 4141 | sub pp_gelem { | ||||
| 4142 | my $self = shift; | ||||
| 4143 | my($op, $cx) = @_; | ||||
| 4144 | my($glob, $part) = ($op->first, $op->last); | ||||
| 4145 | $glob = $glob->first; # skip rv2gv | ||||
| 4146 | $glob = $glob->first if $glob->name eq "rv2gv"; # this one's a bug | ||||
| 4147 | my $scope = is_scope($glob); | ||||
| 4148 | $glob = $self->deparse($glob, 0); | ||||
| 4149 | $part = $self->deparse($part, 1); | ||||
| 4150 | return "*" . ($scope ? "{$glob}" : $glob) . "{$part}"; | ||||
| 4151 | } | ||||
| 4152 | |||||
| 4153 | sub slice { | ||||
| 4154 | my $self = shift; | ||||
| 4155 | my ($op, $cx, $left, $right, $regname, $padname) = @_; | ||||
| 4156 | my $last; | ||||
| 4157 | my(@elems, $kid, $array, $list); | ||||
| 4158 | if (class($op) eq "LISTOP") { | ||||
| 4159 | $last = $op->last; | ||||
| 4160 | } else { # ex-hslice inside delete() | ||||
| 4161 | for ($kid = $op->first; !null $kid->sibling; $kid = $kid->sibling) {} | ||||
| 4162 | $last = $kid; | ||||
| 4163 | } | ||||
| 4164 | $array = $last; | ||||
| 4165 | $array = $array->first | ||||
| 4166 | if $array->name eq $regname or $array->name eq "null"; | ||||
| 4167 | $array = $self->elem_or_slice_array_name($array,$left,$padname,0); | ||||
| 4168 | $kid = $op->first->sibling; # skip pushmark | ||||
| 4169 | if ($kid->name eq "list") { | ||||
| 4170 | $kid = $kid->first->sibling; # skip list, pushmark | ||||
| 4171 | for (; !null $kid; $kid = $kid->sibling) { | ||||
| 4172 | push @elems, $self->deparse($kid, 6); | ||||
| 4173 | } | ||||
| 4174 | $list = join(", ", @elems); | ||||
| 4175 | } else { | ||||
| 4176 | $list = $self->elem_or_slice_single_index($kid); | ||||
| 4177 | } | ||||
| 4178 | my $lead = '@'; | ||||
| 4179 | $lead = '%' if $op->name =~ /^kv/i; | ||||
| 4180 | return $lead . $array . $left . $list . $right; | ||||
| 4181 | } | ||||
| 4182 | |||||
| 4183 | sub pp_aslice { maybe_local(@_, slice(@_, "[", "]", "rv2av", "padav")) } | ||||
| 4184 | sub pp_kvaslice { slice(@_, "[", "]", "rv2av", "padav") } | ||||
| 4185 | sub pp_hslice { maybe_local(@_, slice(@_, "{", "}", "rv2hv", "padhv")) } | ||||
| 4186 | sub pp_kvhslice { slice(@_, "{", "}", "rv2hv", "padhv") } | ||||
| 4187 | |||||
| 4188 | sub pp_lslice { | ||||
| 4189 | my $self = shift; | ||||
| 4190 | my($op, $cx) = @_; | ||||
| 4191 | my $idx = $op->first; | ||||
| 4192 | my $list = $op->last; | ||||
| 4193 | my(@elems, $kid); | ||||
| 4194 | $list = $self->deparse($list, 1); | ||||
| 4195 | $idx = $self->deparse($idx, 1); | ||||
| 4196 | return "($list)" . "[$idx]"; | ||||
| 4197 | } | ||||
| 4198 | |||||
| 4199 | sub want_scalar { | ||||
| 4200 | my $op = shift; | ||||
| 4201 | return ($op->flags & OPf_WANT) == OPf_WANT_SCALAR; | ||||
| 4202 | } | ||||
| 4203 | |||||
| 4204 | sub want_list { | ||||
| 4205 | my $op = shift; | ||||
| 4206 | return ($op->flags & OPf_WANT) == OPf_WANT_LIST; | ||||
| 4207 | } | ||||
| 4208 | |||||
| 4209 | sub _method { | ||||
| 4210 | my $self = shift; | ||||
| 4211 | my($op, $cx) = @_; | ||||
| 4212 | my $kid = $op->first->sibling; # skip pushmark | ||||
| 4213 | my($meth, $obj, @exprs); | ||||
| 4214 | if ($kid->name eq "list" and want_list $kid) { | ||||
| 4215 | # When an indirect object isn't a bareword but the args are in | ||||
| 4216 | # parens, the parens aren't part of the method syntax (the LLAFR | ||||
| 4217 | # doesn't apply), but they make a list with OPf_PARENS set that | ||||
| 4218 | # doesn't get flattened by the append_elem that adds the method, | ||||
| 4219 | # making a (object, arg1, arg2, ...) list where the object | ||||
| 4220 | # usually is. This can be distinguished from | ||||
| 4221 | # '($obj, $arg1, $arg2)->meth()' (which is legal if $arg2 is an | ||||
| 4222 | # object) because in the later the list is in scalar context | ||||
| 4223 | # as the left side of -> always is, while in the former | ||||
| 4224 | # the list is in list context as method arguments always are. | ||||
| 4225 | # (Good thing there aren't method prototypes!) | ||||
| 4226 | $meth = $kid->sibling; | ||||
| 4227 | $kid = $kid->first->sibling; # skip pushmark | ||||
| 4228 | $obj = $kid; | ||||
| 4229 | $kid = $kid->sibling; | ||||
| 4230 | for (; not null $kid; $kid = $kid->sibling) { | ||||
| 4231 | push @exprs, $kid; | ||||
| 4232 | } | ||||
| 4233 | } else { | ||||
| 4234 | $obj = $kid; | ||||
| 4235 | $kid = $kid->sibling; | ||||
| 4236 | for (; !null ($kid->sibling) && $kid->name!~/^method(?:_named)?\z/; | ||||
| 4237 | $kid = $kid->sibling) { | ||||
| 4238 | push @exprs, $kid | ||||
| 4239 | } | ||||
| 4240 | $meth = $kid; | ||||
| 4241 | } | ||||
| 4242 | |||||
| 4243 | if ($meth->name eq "method_named") { | ||||
| 4244 | $meth = $self->meth_sv($meth)->PV; | ||||
| 4245 | } elsif ($meth->name eq "method_super") { | ||||
| 4246 | $meth = "SUPER::".$self->meth_sv($meth)->PV; | ||||
| 4247 | } elsif ($meth->name eq "method_redir") { | ||||
| 4248 | $meth = $self->meth_rclass_sv($meth)->PV.'::'.$self->meth_sv($meth)->PV; | ||||
| 4249 | } elsif ($meth->name eq "method_redir_super") { | ||||
| 4250 | $meth = $self->meth_rclass_sv($meth)->PV.'::SUPER::'. | ||||
| 4251 | $self->meth_sv($meth)->PV; | ||||
| 4252 | } else { | ||||
| 4253 | $meth = $meth->first; | ||||
| 4254 | if ($meth->name eq "const") { | ||||
| 4255 | # As of 5.005_58, this case is probably obsoleted by the | ||||
| 4256 | # method_named case above | ||||
| 4257 | $meth = $self->const_sv($meth)->PV; # needs to be bare | ||||
| 4258 | } | ||||
| 4259 | } | ||||
| 4260 | |||||
| 4261 | return { method => $meth, variable_method => ref($meth), | ||||
| 4262 | object => $obj, args => \@exprs }, | ||||
| 4263 | $cx; | ||||
| 4264 | } | ||||
| 4265 | |||||
| 4266 | # compat function only | ||||
| 4267 | sub method { | ||||
| 4268 | my $self = shift; | ||||
| 4269 | my $info = $self->_method(@_); | ||||
| 4270 | return $self->e_method( $self->_method(@_) ); | ||||
| 4271 | } | ||||
| 4272 | |||||
| 4273 | sub e_method { | ||||
| 4274 | my ($self, $info, $cx) = @_; | ||||
| 4275 | my $obj = $self->deparse($info->{object}, 24); | ||||
| 4276 | |||||
| 4277 | my $meth = $info->{method}; | ||||
| 4278 | $meth = $self->deparse($meth, 1) if $info->{variable_method}; | ||||
| 4279 | my $args = join(", ", map { $self->deparse($_, 6) } @{$info->{args}} ); | ||||
| 4280 | if ($info->{object}->name eq 'scope' && want_list $info->{object}) { | ||||
| 4281 | # method { $object } | ||||
| 4282 | # This must be deparsed this way to preserve list context | ||||
| 4283 | # of $object. | ||||
| 4284 | my $need_paren = $cx >= 6; | ||||
| 4285 | return '(' x $need_paren | ||||
| 4286 | . $meth . substr($obj,2) # chop off the "do" | ||||
| 4287 | . " $args" | ||||
| 4288 | . ')' x $need_paren; | ||||
| 4289 | } | ||||
| 4290 | my $kid = $obj . "->" . $meth; | ||||
| 4291 | if (length $args) { | ||||
| 4292 | return $kid . "(" . $args . ")"; # parens mandatory | ||||
| 4293 | } else { | ||||
| 4294 | return $kid; | ||||
| 4295 | } | ||||
| 4296 | } | ||||
| 4297 | |||||
| 4298 | # returns "&" if the prototype doesn't match the args, | ||||
| 4299 | # or ("", $args_after_prototype_demunging) if it does. | ||||
| 4300 | sub check_proto { | ||||
| 4301 | my $self = shift; | ||||
| 4302 | return "&" if $self->{'noproto'}; | ||||
| 4303 | my($proto, @args) = @_; | ||||
| 4304 | my($arg, $real); | ||||
| 4305 | my $doneok = 0; | ||||
| 4306 | my @reals; | ||||
| 4307 | # An unbackslashed @ or % gobbles up the rest of the args | ||||
| 4308 | 1 while $proto =~ s/(?<!\\)([@%])[^\]]+$/$1/; | ||||
| 4309 | $proto =~ s/^\s*//; | ||||
| 4310 | while ($proto) { | ||||
| 4311 | $proto =~ s/^(\\?[\$\@&%*_]|\\\[[\$\@&%*]+\]|;|)\s*//; | ||||
| 4312 | my $chr = $1; | ||||
| 4313 | if ($chr eq "") { | ||||
| 4314 | return "&" if @args; | ||||
| 4315 | } elsif ($chr eq ";") { | ||||
| 4316 | $doneok = 1; | ||||
| 4317 | } elsif ($chr eq "@" or $chr eq "%") { | ||||
| 4318 | push @reals, map($self->deparse($_, 6), @args); | ||||
| 4319 | @args = (); | ||||
| 4320 | } else { | ||||
| 4321 | $arg = shift @args; | ||||
| 4322 | last unless $arg; | ||||
| 4323 | if ($chr eq "\$" || $chr eq "_") { | ||||
| 4324 | if (want_scalar $arg) { | ||||
| 4325 | push @reals, $self->deparse($arg, 6); | ||||
| 4326 | } else { | ||||
| 4327 | return "&"; | ||||
| 4328 | } | ||||
| 4329 | } elsif ($chr eq "&") { | ||||
| 4330 | if ($arg->name =~ /^(s?refgen|undef)$/) { | ||||
| 4331 | push @reals, $self->deparse($arg, 6); | ||||
| 4332 | } else { | ||||
| 4333 | return "&"; | ||||
| 4334 | } | ||||
| 4335 | } elsif ($chr eq "*") { | ||||
| 4336 | if ($arg->name =~ /^s?refgen$/ | ||||
| 4337 | and $arg->first->first->name eq "rv2gv") | ||||
| 4338 | { | ||||
| 4339 | $real = $arg->first->first; # skip refgen, null | ||||
| 4340 | if ($real->first->name eq "gv") { | ||||
| 4341 | push @reals, $self->deparse($real, 6); | ||||
| 4342 | } else { | ||||
| 4343 | push @reals, $self->deparse($real->first, 6); | ||||
| 4344 | } | ||||
| 4345 | } else { | ||||
| 4346 | return "&"; | ||||
| 4347 | } | ||||
| 4348 | } elsif (substr($chr, 0, 1) eq "\\") { | ||||
| 4349 | $chr =~ tr/\\[]//d; | ||||
| 4350 | if ($arg->name =~ /^s?refgen$/ and | ||||
| 4351 | !null($real = $arg->first) and | ||||
| 4352 | ($chr =~ /\$/ && is_scalar($real->first) | ||||
| 4353 | or ($chr =~ /@/ | ||||
| 4354 | && class($real->first->sibling) ne 'NULL' | ||||
| 4355 | && $real->first->sibling->name | ||||
| 4356 | =~ /^(rv2|pad)av$/) | ||||
| 4357 | or ($chr =~ /%/ | ||||
| 4358 | && class($real->first->sibling) ne 'NULL' | ||||
| 4359 | && $real->first->sibling->name | ||||
| 4360 | =~ /^(rv2|pad)hv$/) | ||||
| 4361 | #or ($chr =~ /&/ # This doesn't work | ||||
| 4362 | # && $real->first->name eq "rv2cv") | ||||
| 4363 | or ($chr =~ /\*/ | ||||
| 4364 | && $real->first->name eq "rv2gv"))) | ||||
| 4365 | { | ||||
| 4366 | push @reals, $self->deparse($real, 6); | ||||
| 4367 | } else { | ||||
| 4368 | return "&"; | ||||
| 4369 | } | ||||
| 4370 | } | ||||
| 4371 | } | ||||
| 4372 | } | ||||
| 4373 | return "&" if $proto and !$doneok; # too few args and no ';' | ||||
| 4374 | return "&" if @args; # too many args | ||||
| 4375 | return ("", join ", ", @reals); | ||||
| 4376 | } | ||||
| 4377 | |||||
| 4378 | sub retscalar { | ||||
| 4379 | my $name = $_[0]->name; | ||||
| 4380 | # XXX There has to be a better way of doing this scalar-op check. | ||||
| 4381 | # Currently PL_opargs is not exposed. | ||||
| 4382 | if ($name eq 'null') { | ||||
| 4383 | $name = substr B::ppname($_[0]->targ), 3 | ||||
| 4384 | } | ||||
| 4385 | $name =~ /^(?:scalar|pushmark|wantarray|const|gvsv|gv|padsv|rv2gv | ||||
| 4386 | |rv2sv|av2arylen|anoncode|prototype|srefgen|ref|bless | ||||
| 4387 | |regcmaybe|regcreset|regcomp|qr|subst|substcont|trans | ||||
| 4388 | |transr|sassign|chop|schop|chomp|schomp|defined|undef | ||||
| 4389 | |study|pos|preinc|i_preinc|predec|i_predec|postinc | ||||
| 4390 | |i_postinc|postdec|i_postdec|pow|multiply|i_multiply | ||||
| 4391 | |divide|i_divide|modulo|i_modulo|add|i_add|subtract | ||||
| 4392 | |i_subtract|concat|stringify|left_shift|right_shift|lt | ||||
| 4393 | |i_lt|gt|i_gt|le|i_le|ge|i_ge|eq|i_eq|ne|i_ne|ncmp|i_ncmp | ||||
| 4394 | |slt|sgt|sle|sge|seq|sne|scmp|[sn]?bit_(?:and|x?or)|negate | ||||
| 4395 | |i_negate|not|[sn]?complement|smartmatch|atan2|sin|cos | ||||
| 4396 | |rand|srand|exp|log|sqrt|int|hex|oct|abs|length|substr | ||||
| 4397 | |vec|index|rindex|sprintf|formline|ord|chr|crypt|ucfirst | ||||
| 4398 | |lcfirst|uc|lc|quotemeta|aelemfast|aelem|exists|helem | ||||
| 4399 | |pack|join|anonlist|anonhash|push|pop|shift|unshift|xor | ||||
| 4400 | |andassign|orassign|dorassign|warn|die|reset|nextstate | ||||
| 4401 | |dbstate|unstack|last|next|redo|dump|goto|exit|open|close | ||||
| 4402 | |pipe_op|fileno|umask|binmode|tie|untie|tied|dbmopen | ||||
| 4403 | |dbmclose|select|getc|read|enterwrite|prtf|print|say | ||||
| 4404 | |sysopen|sysseek|sysread|syswrite|eof|tell|seek|truncate | ||||
| 4405 | |fcntl|ioctl|flock|send|recv|socket|sockpair|bind|connect | ||||
| 4406 | |listen|accept|shutdown|gsockopt|ssockopt|getsockname | ||||
| 4407 | |getpeername|ftrread|ftrwrite|ftrexec|fteread|ftewrite | ||||
| 4408 | |fteexec|ftis|ftsize|ftmtime|ftatime|ftctime|ftrowned | ||||
| 4409 | |fteowned|ftzero|ftsock|ftchr|ftblk|ftfile|ftdir|ftpipe | ||||
| 4410 | |ftsuid|ftsgid|ftsvtx|ftlink|fttty|fttext|ftbinary|chdir | ||||
| 4411 | |chown|chroot|unlink|chmod|utime|rename|link|symlink | ||||
| 4412 | |readlink|mkdir|rmdir|open_dir|telldir|seekdir|rewinddir | ||||
| 4413 | |closedir|fork|wait|waitpid|system|exec|kill|getppid | ||||
| 4414 | |getpgrp|setpgrp|getpriority|setpriority|time|alarm|sleep | ||||
| 4415 | |shmget|shmctl|shmread|shmwrite|msgget|msgctl|msgsnd | ||||
| 4416 | |msgrcv|semop|semget|semctl|hintseval|shostent|snetent | ||||
| 4417 | |sprotoent|sservent|ehostent|enetent|eprotoent|eservent | ||||
| 4418 | |spwent|epwent|sgrent|egrent|getlogin|syscall|lock|runcv | ||||
| 4419 | |fc)\z/x | ||||
| 4420 | } | ||||
| 4421 | |||||
| 4422 | sub pp_entersub { | ||||
| 4423 | my $self = shift; | ||||
| 4424 | my($op, $cx) = @_; | ||||
| 4425 | return $self->e_method($self->_method($op, $cx)) | ||||
| 4426 | unless null $op->first->sibling; | ||||
| 4427 | my $prefix = ""; | ||||
| 4428 | my $amper = ""; | ||||
| 4429 | my($kid, @exprs); | ||||
| 4430 | if ($op->flags & OPf_SPECIAL && !($op->flags & OPf_MOD)) { | ||||
| 4431 | $prefix = "do "; | ||||
| 4432 | } elsif ($op->private & OPpENTERSUB_AMPER) { | ||||
| 4433 | $amper = "&"; | ||||
| 4434 | } | ||||
| 4435 | $kid = $op->first; | ||||
| 4436 | $kid = $kid->first->sibling; # skip ex-list, pushmark | ||||
| 4437 | for (; not null $kid->sibling; $kid = $kid->sibling) { | ||||
| 4438 | push @exprs, $kid; | ||||
| 4439 | } | ||||
| 4440 | my $simple = 0; | ||||
| 4441 | my $proto = undef; | ||||
| 4442 | my $lexical; | ||||
| 4443 | if (is_scope($kid)) { | ||||
| 4444 | $amper = "&"; | ||||
| 4445 | $kid = "{" . $self->deparse($kid, 0) . "}"; | ||||
| 4446 | } elsif ($kid->first->name eq "gv") { | ||||
| 4447 | my $gv = $self->gv_or_padgv($kid->first); | ||||
| 4448 | my $cv; | ||||
| 4449 | if (class($gv) eq 'GV' && class($cv = $gv->CV) ne "SPECIAL" | ||||
| 4450 | || $gv->FLAGS & SVf_ROK && class($cv = $gv->RV) eq 'CV') { | ||||
| 4451 | $proto = $cv->PV if $cv->FLAGS & SVf_POK; | ||||
| 4452 | } | ||||
| 4453 | $simple = 1; # only calls of named functions can be prototyped | ||||
| 4454 | $kid = $self->deparse($kid, 24); | ||||
| 4455 | my $fq; | ||||
| 4456 | # Fully qualify any sub name that conflicts with a lexical. | ||||
| 4457 | if ($self->lex_in_scope("&$kid") | ||||
| 4458 | || $self->lex_in_scope("&$kid", 1)) | ||||
| 4459 | { | ||||
| 4460 | $fq++; | ||||
| 4461 | } elsif (!$amper) { | ||||
| 4462 | if ($kid eq 'main::') { | ||||
| 4463 | $kid = '::'; | ||||
| 4464 | } | ||||
| 4465 | else { | ||||
| 4466 | if ($kid !~ /::/ && $kid ne 'x') { | ||||
| 4467 | # Fully qualify any sub name that is also a keyword. While | ||||
| 4468 | # we could check the import flag, we cannot guarantee that | ||||
| 4469 | # the code deparsed so far would set that flag, so we qual- | ||||
| 4470 | # ify the names regardless of importation. | ||||
| 4471 | if (exists $feature_keywords{$kid}) { | ||||
| 4472 | $fq++ if $self->feature_enabled($kid); | ||||
| 4473 | } elsif (do { local $@; local $SIG{__DIE__}; | ||||
| 4474 | eval { () = prototype "CORE::$kid"; 1 } }) { | ||||
| 4475 | $fq++ | ||||
| 4476 | } | ||||
| 4477 | } | ||||
| 4478 | if ($kid !~ /^(?:\w|::)(?:[\w\d]|::(?!\z))*\z/) { | ||||
| 4479 | $kid = single_delim("q", "'", $kid, $self) . '->'; | ||||
| 4480 | } | ||||
| 4481 | } | ||||
| 4482 | } | ||||
| 4483 | $fq and substr $kid, 0, 0, = $self->{'curstash'}.'::'; | ||||
| 4484 | } elsif (is_scalar ($kid->first) && $kid->first->name ne 'rv2cv') { | ||||
| 4485 | $amper = "&"; | ||||
| 4486 | $kid = $self->deparse($kid, 24); | ||||
| 4487 | } else { | ||||
| 4488 | $prefix = ""; | ||||
| 4489 | my $grandkid = $kid->first; | ||||
| 4490 | my $arrow = ($lexical = $grandkid->name eq "padcv") | ||||
| 4491 | || is_subscriptable($grandkid) | ||||
| 4492 | ? "" | ||||
| 4493 | : "->"; | ||||
| 4494 | $kid = $self->deparse($kid, 24) . $arrow; | ||||
| 4495 | if ($lexical) { | ||||
| 4496 | my $padlist = $self->{'curcv'}->PADLIST; | ||||
| 4497 | my $padoff = $grandkid->targ; | ||||
| 4498 | my $padname = $padlist->ARRAYelt(0)->ARRAYelt($padoff); | ||||
| 4499 | my $protocv = $padname->FLAGS & SVpad_STATE | ||||
| 4500 | ? $padlist->ARRAYelt(1)->ARRAYelt($padoff) | ||||
| 4501 | : $padname->PROTOCV; | ||||
| 4502 | if ($protocv->FLAGS & SVf_POK) { | ||||
| 4503 | $proto = $protocv->PV | ||||
| 4504 | } | ||||
| 4505 | $simple = 1; | ||||
| 4506 | } | ||||
| 4507 | } | ||||
| 4508 | |||||
| 4509 | # Doesn't matter how many prototypes there are, if | ||||
| 4510 | # they haven't happened yet! | ||||
| 4511 | my $declared = $lexical || exists $self->{'subs_declared'}{$kid}; | ||||
| 4512 | if (not $declared and $self->{'in_coderef2text'}) { | ||||
| 4513 | 2 | 19µs | 2 | 33µs | # spent 20µs (8+13) within B::Deparse::BEGIN@4513 which was called:
# once (8µs+13µs) by YAML::XS::BEGIN@57 at line 4513 # spent 20µs making 1 call to B::Deparse::BEGIN@4513
# spent 12µs making 1 call to strict::unimport |
| 4514 | 2 | 339µs | 2 | 29µs | # spent 18µs (6+11) within B::Deparse::BEGIN@4514 which was called:
# once (6µs+11µs) by YAML::XS::BEGIN@57 at line 4514 # spent 18µs making 1 call to B::Deparse::BEGIN@4514
# spent 12µs making 1 call to warnings::unimport |
| 4515 | $declared = | ||||
| 4516 | ( | ||||
| 4517 | defined &{ ${$self->{'curstash'}."::"}{$kid} } | ||||
| 4518 | && !exists | ||||
| 4519 | $self->{'subs_deparsed'}{$self->{'curstash'}."::".$kid} | ||||
| 4520 | && defined prototype $self->{'curstash'}."::".$kid | ||||
| 4521 | ); | ||||
| 4522 | } | ||||
| 4523 | if (!$declared && defined($proto)) { | ||||
| 4524 | # Avoid "too early to check prototype" warning | ||||
| 4525 | ($amper, $proto) = ('&'); | ||||
| 4526 | } | ||||
| 4527 | |||||
| 4528 | my $args; | ||||
| 4529 | my $listargs = 1; | ||||
| 4530 | if ($declared and defined $proto and not $amper) { | ||||
| 4531 | ($amper, $args) = $self->check_proto($proto, @exprs); | ||||
| 4532 | $listargs = $amper; | ||||
| 4533 | } | ||||
| 4534 | if ($listargs) { | ||||
| 4535 | $args = join(", ", map( | ||||
| 4536 | ($_->flags & OPf_WANT) == OPf_WANT_SCALAR | ||||
| 4537 | && !retscalar($_) | ||||
| 4538 | ? $self->maybe_parens_unop('scalar', $_, 6) | ||||
| 4539 | : $self->deparse($_, 6), | ||||
| 4540 | @exprs | ||||
| 4541 | )); | ||||
| 4542 | } | ||||
| 4543 | if ($prefix or $amper) { | ||||
| 4544 | if ($kid eq '&') { $kid = "{$kid}" } # &{&} cannot be written as && | ||||
| 4545 | if ($op->flags & OPf_STACKED) { | ||||
| 4546 | return $prefix . $amper . $kid . "(" . $args . ")"; | ||||
| 4547 | } else { | ||||
| 4548 | return $prefix . $amper. $kid; | ||||
| 4549 | } | ||||
| 4550 | } else { | ||||
| 4551 | # It's a syntax error to call CORE::GLOBAL::foo with a prefix, | ||||
| 4552 | # so it must have been translated from a keyword call. Translate | ||||
| 4553 | # it back. | ||||
| 4554 | $kid =~ s/^CORE::GLOBAL:://; | ||||
| 4555 | |||||
| 4556 | my $dproto = defined($proto) ? $proto : "undefined"; | ||||
| 4557 | my $scalar_proto = $dproto =~ /^;*(?:[\$*_+]|\\.|\\\[[^]]\])\z/; | ||||
| 4558 | if (!$declared) { | ||||
| 4559 | return "$kid(" . $args . ")"; | ||||
| 4560 | } elsif ($dproto =~ /^\s*\z/) { | ||||
| 4561 | return $kid; | ||||
| 4562 | } elsif ($scalar_proto and is_scalar($exprs[0])) { | ||||
| 4563 | # is_scalar is an excessively conservative test here: | ||||
| 4564 | # really, we should be comparing to the precedence of the | ||||
| 4565 | # top operator of $exprs[0] (ala unop()), but that would | ||||
| 4566 | # take some major code restructuring to do right. | ||||
| 4567 | return $self->maybe_parens_func($kid, $args, $cx, 16); | ||||
| 4568 | } elsif (not $scalar_proto and defined($proto) || $simple) { #' | ||||
| 4569 | return $self->maybe_parens_func($kid, $args, $cx, 5); | ||||
| 4570 | } else { | ||||
| 4571 | return "$kid(" . $args . ")"; | ||||
| 4572 | } | ||||
| 4573 | } | ||||
| 4574 | } | ||||
| 4575 | |||||
| 4576 | sub pp_enterwrite { unop(@_, "write") } | ||||
| 4577 | |||||
| 4578 | # escape things that cause interpolation in double quotes, | ||||
| 4579 | # but not character escapes | ||||
| 4580 | sub uninterp { | ||||
| 4581 | my($str) = @_; | ||||
| 4582 | $str =~ s/(^|\G|[^\\])((?:\\\\)*)([\$\@]|\\[uUlLQE])/$1$2\\$3/g; | ||||
| 4583 | return $str; | ||||
| 4584 | } | ||||
| 4585 | |||||
| 4586 | { | ||||
| 4587 | 1 | 100ns | my $bal; | ||
| 4588 | # spent 12µs (9+3) within B::Deparse::BEGIN@4588 which was called:
# once (9µs+3µs) by YAML::XS::BEGIN@57 at line 4599 | ||||
| 4589 | 2 | 53µs | 2 | 39µs | # spent 23µs (7+16) within B::Deparse::BEGIN@4589 which was called:
# once (7µs+16µs) by YAML::XS::BEGIN@57 at line 4589 # spent 23µs making 1 call to B::Deparse::BEGIN@4589
# spent 16µs making 1 call to re::import |
| 4590 | # Matches any string which is balanced with respect to {braces} | ||||
| 4591 | $bal = qr( | ||||
| 4592 | (?: | ||||
| 4593 | [^\\{}] | ||||
| 4594 | | \\\\ | ||||
| 4595 | | \\[{}] | ||||
| 4596 | | \{(??{$bal})\} | ||||
| 4597 | )* | ||||
| 4598 | 1 | 10µs | 1 | 3µs | )x; # spent 3µs making 1 call to B::Deparse::CORE:qr |
| 4599 | 1 | 446µs | 1 | 12µs | } # spent 12µs making 1 call to B::Deparse::BEGIN@4588 |
| 4600 | |||||
| 4601 | # the same, but treat $|, $), $( and $ at the end of the string differently | ||||
| 4602 | # and leave comments unmangled for the sake of /x and (?x). | ||||
| 4603 | sub re_uninterp { | ||||
| 4604 | my($str) = @_; | ||||
| 4605 | |||||
| 4606 | $str =~ s/ | ||||
| 4607 | ( ^|\G # $1 | ||||
| 4608 | | [^\\] | ||||
| 4609 | ) | ||||
| 4610 | |||||
| 4611 | ( # $2 | ||||
| 4612 | (?:\\\\)* | ||||
| 4613 | ) | ||||
| 4614 | |||||
| 4615 | ( # $3 | ||||
| 4616 | ( \(\?\??\{$bal\}\) # $4 (skip over (?{}) and (??{}) blocks) | ||||
| 4617 | | \#[^\n]* # (skip over comments) | ||||
| 4618 | ) | ||||
| 4619 | | [\$\@] | ||||
| 4620 | (?!\||\)|\(|$|\s) | ||||
| 4621 | | \\[uUlLQE] | ||||
| 4622 | ) | ||||
| 4623 | |||||
| 4624 | /defined($4) && length($4) ? "$1$2$4" : "$1$2\\$3"/xeg; | ||||
| 4625 | |||||
| 4626 | return $str; | ||||
| 4627 | } | ||||
| 4628 | } | ||||
| 4629 | |||||
| 4630 | # character escapes, but not delimiters that might need to be escaped | ||||
| 4631 | 1 | 100ns | sub escape_str { # ASCII, UTF8 | ||
| 4632 | my($str) = @_; | ||||
| 4633 | $str =~ s/(.)/ord($1) > 255 ? sprintf("\\x{%x}", ord($1)) : $1/eg; | ||||
| 4634 | $str =~ s/\a/\\a/g; | ||||
| 4635 | # $str =~ s/\cH/\\b/g; # \b means something different in a regex; and \cH | ||||
| 4636 | # isn't a backspace in EBCDIC | ||||
| 4637 | $str =~ s/\t/\\t/g; | ||||
| 4638 | $str =~ s/\n/\\n/g; | ||||
| 4639 | $str =~ s/\e/\\e/g; | ||||
| 4640 | $str =~ s/\f/\\f/g; | ||||
| 4641 | $str =~ s/\r/\\r/g; | ||||
| 4642 | $str =~ s/([\cA-\cZ])/'\\c' . $unctrl{$1}/ge; | ||||
| 4643 | $str =~ s/([[:^print:]])/sprintf("\\%03o", ord($1))/age; | ||||
| 4644 | return $str; | ||||
| 4645 | } | ||||
| 4646 | |||||
| 4647 | # For regexes. Leave whitespace unmangled in case of /x or (?x). | ||||
| 4648 | sub escape_re { | ||||
| 4649 | my($str) = @_; | ||||
| 4650 | $str =~ s/(.)/ord($1) > 255 ? sprintf("\\x{%x}", ord($1)) : $1/eg; | ||||
| 4651 | $str =~ s/([[:^print:]])/ | ||||
| 4652 | ($1 =~ y! \t\n!!) ? $1 : sprintf("\\%03o", ord($1))/age; | ||||
| 4653 | $str =~ s/\n/\n\f/g; | ||||
| 4654 | return $str; | ||||
| 4655 | } | ||||
| 4656 | |||||
| 4657 | # Don't do this for regexen | ||||
| 4658 | sub unback { | ||||
| 4659 | my($str) = @_; | ||||
| 4660 | $str =~ s/\\/\\\\/g; | ||||
| 4661 | return $str; | ||||
| 4662 | } | ||||
| 4663 | |||||
| 4664 | # Remove backslashes which precede literal control characters, | ||||
| 4665 | # to avoid creating ambiguity when we escape the latter. | ||||
| 4666 | sub re_unback { | ||||
| 4667 | my($str) = @_; | ||||
| 4668 | |||||
| 4669 | # the insane complexity here is due to the behaviour of "\c\" | ||||
| 4670 | $str =~ s/(^|[^\\]|\\c\\)(?<!\\c)\\(\\\\)*(?=[[:^print:]])/$1$2/g; | ||||
| 4671 | return $str; | ||||
| 4672 | } | ||||
| 4673 | |||||
| 4674 | sub balanced_delim { | ||||
| 4675 | my($str) = @_; | ||||
| 4676 | my @str = split //, $str; | ||||
| 4677 | my($ar, $open, $close, $fail, $c, $cnt, $last_bs); | ||||
| 4678 | for $ar (['[',']'], ['(',')'], ['<','>'], ['{','}']) { | ||||
| 4679 | ($open, $close) = @$ar; | ||||
| 4680 | $fail = 0; $cnt = 0; $last_bs = 0; | ||||
| 4681 | for $c (@str) { | ||||
| 4682 | if ($c eq $open) { | ||||
| 4683 | $fail = 1 if $last_bs; | ||||
| 4684 | $cnt++; | ||||
| 4685 | } elsif ($c eq $close) { | ||||
| 4686 | $fail = 1 if $last_bs; | ||||
| 4687 | $cnt--; | ||||
| 4688 | if ($cnt < 0) { | ||||
| 4689 | # qq()() isn't ")(" | ||||
| 4690 | $fail = 1; | ||||
| 4691 | last; | ||||
| 4692 | } | ||||
| 4693 | } | ||||
| 4694 | $last_bs = $c eq '\\'; | ||||
| 4695 | } | ||||
| 4696 | $fail = 1 if $cnt != 0; | ||||
| 4697 | return ($open, "$open$str$close") if not $fail; | ||||
| 4698 | } | ||||
| 4699 | return ("", $str); | ||||
| 4700 | } | ||||
| 4701 | |||||
| 4702 | sub single_delim { | ||||
| 4703 | my($q, $default, $str, $self) = @_; | ||||
| 4704 | return "$default$str$default" if $default and index($str, $default) == -1; | ||||
| 4705 | my $coreq = $self->keyword($q); # maybe CORE::q | ||||
| 4706 | if ($q ne 'qr') { | ||||
| 4707 | (my $succeed, $str) = balanced_delim($str); | ||||
| 4708 | return "$coreq$str" if $succeed; | ||||
| 4709 | } | ||||
| 4710 | for my $delim ('/', '"', '#') { | ||||
| 4711 | return "$coreq$delim" . $str . $delim if index($str, $delim) == -1; | ||||
| 4712 | } | ||||
| 4713 | if ($default) { | ||||
| 4714 | $str =~ s/$default/\\$default/g; | ||||
| 4715 | return "$default$str$default"; | ||||
| 4716 | } else { | ||||
| 4717 | $str =~ s[/][\\/]g; | ||||
| 4718 | return "$coreq/$str/"; | ||||
| 4719 | } | ||||
| 4720 | } | ||||
| 4721 | |||||
| 4722 | 1 | 0s | my $max_prec; | ||
| 4723 | 1 | 317µs | 2 | 5µs | # spent 3µs within B::Deparse::BEGIN@4723 which was called:
# once (3µs+0s) by YAML::XS::BEGIN@57 at line 4723 # spent 3µs making 1 call to B::Deparse::BEGIN@4723
# spent 2µs making 1 call to main::CORE:pack |
| 4724 | |||||
| 4725 | # Split a floating point number into an integer mantissa and a binary | ||||
| 4726 | # exponent. Assumes you've already made sure the number isn't zero or | ||||
| 4727 | # some weird infinity or NaN. | ||||
| 4728 | sub split_float { | ||||
| 4729 | my($f) = @_; | ||||
| 4730 | my $exponent = 0; | ||||
| 4731 | if ($f == int($f)) { | ||||
| 4732 | while ($f % 2 == 0) { | ||||
| 4733 | $f /= 2; | ||||
| 4734 | $exponent++; | ||||
| 4735 | } | ||||
| 4736 | } else { | ||||
| 4737 | while ($f != int($f)) { | ||||
| 4738 | $f *= 2; | ||||
| 4739 | $exponent--; | ||||
| 4740 | } | ||||
| 4741 | } | ||||
| 4742 | my $mantissa = sprintf("%.0f", $f); | ||||
| 4743 | return ($mantissa, $exponent); | ||||
| 4744 | } | ||||
| 4745 | |||||
| 4746 | sub const { | ||||
| 4747 | my $self = shift; | ||||
| 4748 | my($sv, $cx) = @_; | ||||
| 4749 | if ($self->{'use_dumper'}) { | ||||
| 4750 | return $self->const_dumper($sv, $cx); | ||||
| 4751 | } | ||||
| 4752 | if (class($sv) eq "SPECIAL") { | ||||
| 4753 | # sv_undef, sv_yes, sv_no | ||||
| 4754 | return $$sv == 3 ? $self->maybe_parens("!1", $cx, 21) | ||||
| 4755 | : ('undef', '1')[$$sv-1]; | ||||
| 4756 | } | ||||
| 4757 | if (class($sv) eq "NULL") { | ||||
| 4758 | return 'undef'; | ||||
| 4759 | } | ||||
| 4760 | # convert a version object into the "v1.2.3" string in its V magic | ||||
| 4761 | if ($sv->FLAGS & SVs_RMG) { | ||||
| 4762 | for (my $mg = $sv->MAGIC; $mg; $mg = $mg->MOREMAGIC) { | ||||
| 4763 | return $mg->PTR if $mg->TYPE eq 'V'; | ||||
| 4764 | } | ||||
| 4765 | } | ||||
| 4766 | |||||
| 4767 | if ($sv->FLAGS & SVf_IOK) { | ||||
| 4768 | my $str = $sv->int_value; | ||||
| 4769 | $str = $self->maybe_parens($str, $cx, 21) if $str < 0; | ||||
| 4770 | return $str; | ||||
| 4771 | } elsif ($sv->FLAGS & SVf_NOK) { | ||||
| 4772 | my $nv = $sv->NV; | ||||
| 4773 | if ($nv == 0) { | ||||
| 4774 | 1 | 800ns | if (pack("F", $nv) eq pack("F", 0)) { # spent 800ns making 1 call to main::CORE:pack | ||
| 4775 | # positive zero | ||||
| 4776 | return "0"; | ||||
| 4777 | } else { | ||||
| 4778 | # negative zero | ||||
| 4779 | return $self->maybe_parens("-.0", $cx, 21); | ||||
| 4780 | } | ||||
| 4781 | } elsif (1/$nv == 0) { | ||||
| 4782 | if ($nv > 0) { | ||||
| 4783 | # positive infinity | ||||
| 4784 | return $self->maybe_parens("9**9**9", $cx, 22); | ||||
| 4785 | } else { | ||||
| 4786 | # negative infinity | ||||
| 4787 | return $self->maybe_parens("-9**9**9", $cx, 21); | ||||
| 4788 | } | ||||
| 4789 | } elsif ($nv != $nv) { | ||||
| 4790 | # NaN | ||||
| 4791 | 1 | 600ns | if (pack("F", $nv) eq pack("F", sin(9**9**9))) { # spent 600ns making 1 call to main::CORE:pack | ||
| 4792 | # the normal kind | ||||
| 4793 | return "sin(9**9**9)"; | ||||
| 4794 | 1 | 300ns | } elsif (pack("F", $nv) eq pack("F", -sin(9**9**9))) { # spent 300ns making 1 call to main::CORE:pack | ||
| 4795 | # the inverted kind | ||||
| 4796 | return $self->maybe_parens("-sin(9**9**9)", $cx, 21); | ||||
| 4797 | } else { | ||||
| 4798 | # some other kind | ||||
| 4799 | my $hex = unpack("h*", pack("F", $nv)); | ||||
| 4800 | return qq'unpack("F", pack("h*", "$hex"))'; | ||||
| 4801 | } | ||||
| 4802 | } | ||||
| 4803 | # first, try the default stringification | ||||
| 4804 | my $str = "$nv"; | ||||
| 4805 | if ($str != $nv) { | ||||
| 4806 | # failing that, try using more precision | ||||
| 4807 | $str = sprintf("%.${max_prec}g", $nv); | ||||
| 4808 | # if (pack("F", $str) ne pack("F", $nv)) { | ||||
| 4809 | if ($str != $nv) { | ||||
| 4810 | # not representable in decimal with whatever sprintf() | ||||
| 4811 | # and atof() Perl is using here. | ||||
| 4812 | my($mant, $exp) = split_float($nv); | ||||
| 4813 | return $self->maybe_parens("$mant * 2**$exp", $cx, 19); | ||||
| 4814 | } | ||||
| 4815 | } | ||||
| 4816 | $str = $self->maybe_parens($str, $cx, 21) if $nv < 0; | ||||
| 4817 | return $str; | ||||
| 4818 | } elsif ($sv->FLAGS & SVf_ROK && $sv->can("RV")) { | ||||
| 4819 | my $ref = $sv->RV; | ||||
| 4820 | my $class = class($ref); | ||||
| 4821 | if ($class eq "AV") { | ||||
| 4822 | return "[" . $self->list_const(2, $ref->ARRAY) . "]"; | ||||
| 4823 | } elsif ($class eq "HV") { | ||||
| 4824 | my %hash = $ref->ARRAY; | ||||
| 4825 | my @elts; | ||||
| 4826 | for my $k (sort keys %hash) { | ||||
| 4827 | push @elts, "$k => " . $self->const($hash{$k}, 6); | ||||
| 4828 | } | ||||
| 4829 | return "{" . join(", ", @elts) . "}"; | ||||
| 4830 | } elsif ($class eq "CV") { | ||||
| 4831 | # spent 16µs (9+7) within B::Deparse::BEGIN@4831 which was called:
# once (9µs+7µs) by YAML::XS::BEGIN@57 at line 4836 | ||||
| 4832 | 1 | 3µs | if ($] > 5.0150051) { | ||
| 4833 | 1 | 400ns | require overloading; | ||
| 4834 | 1 | 2µs | 1 | 7µs | unimport overloading; # spent 7µs making 1 call to overloading::unimport |
| 4835 | } | ||||
| 4836 | 1 | 3.37ms | 1 | 16µs | } # spent 16µs making 1 call to B::Deparse::BEGIN@4831 |
| 4837 | if ($] > 5.0150051 && $self->{curcv} && | ||||
| 4838 | $self->{curcv}->object_2svref == $ref->object_2svref) { | ||||
| 4839 | return $self->keyword("__SUB__"); | ||||
| 4840 | } | ||||
| 4841 | return "sub " . $self->deparse_sub($ref); | ||||
| 4842 | } | ||||
| 4843 | if ($class ne 'SPECIAL' and $ref->FLAGS & SVs_SMG) { | ||||
| 4844 | for (my $mg = $ref->MAGIC; $mg; $mg = $mg->MOREMAGIC) { | ||||
| 4845 | if ($mg->TYPE eq 'r') { | ||||
| 4846 | my $re = re_uninterp(escape_re(re_unback($mg->precomp))); | ||||
| 4847 | return single_delim("qr", "", $re, $self); | ||||
| 4848 | } | ||||
| 4849 | } | ||||
| 4850 | } | ||||
| 4851 | |||||
| 4852 | my $const = $self->const($ref, 20); | ||||
| 4853 | if ($self->{in_subst_repl} && $const =~ /^[0-9]/) { | ||||
| 4854 | $const = "($const)"; | ||||
| 4855 | } | ||||
| 4856 | return $self->maybe_parens("\\$const", $cx, 20); | ||||
| 4857 | } elsif ($sv->FLAGS & SVf_POK) { | ||||
| 4858 | my $str = $sv->PV; | ||||
| 4859 | if ($str =~ /[[:^print:]]/a) { | ||||
| 4860 | return single_delim("qq", '"', | ||||
| 4861 | uninterp(escape_str unback $str), $self); | ||||
| 4862 | } else { | ||||
| 4863 | return single_delim("q", "'", unback($str), $self); | ||||
| 4864 | } | ||||
| 4865 | } else { | ||||
| 4866 | return "undef"; | ||||
| 4867 | } | ||||
| 4868 | } | ||||
| 4869 | |||||
| 4870 | sub const_dumper { | ||||
| 4871 | my $self = shift; | ||||
| 4872 | my($sv, $cx) = @_; | ||||
| 4873 | my $ref = $sv->object_2svref(); | ||||
| 4874 | my $dumper = Data::Dumper->new([$$ref], ['$v']); | ||||
| 4875 | $dumper->Purity(1)->Terse(1)->Deparse(1)->Indent(0)->Useqq(1)->Sortkeys(1); | ||||
| 4876 | my $str = $dumper->Dump(); | ||||
| 4877 | if ($str =~ /^\$v/) { | ||||
| 4878 | return '${my ' . $str . ' \$v}'; | ||||
| 4879 | } else { | ||||
| 4880 | return $str; | ||||
| 4881 | } | ||||
| 4882 | } | ||||
| 4883 | |||||
| 4884 | sub const_sv { | ||||
| 4885 | my $self = shift; | ||||
| 4886 | my $op = shift; | ||||
| 4887 | my $sv = $op->sv; | ||||
| 4888 | # the constant could be in the pad (under useithreads) | ||||
| 4889 | $sv = $self->padval($op->targ) unless $$sv; | ||||
| 4890 | return $sv; | ||||
| 4891 | } | ||||
| 4892 | |||||
| 4893 | sub meth_sv { | ||||
| 4894 | my $self = shift; | ||||
| 4895 | my $op = shift; | ||||
| 4896 | my $sv = $op->meth_sv; | ||||
| 4897 | # the constant could be in the pad (under useithreads) | ||||
| 4898 | $sv = $self->padval($op->targ) unless $$sv; | ||||
| 4899 | return $sv; | ||||
| 4900 | } | ||||
| 4901 | |||||
| 4902 | sub meth_rclass_sv { | ||||
| 4903 | my $self = shift; | ||||
| 4904 | my $op = shift; | ||||
| 4905 | my $sv = $op->rclass; | ||||
| 4906 | # the constant could be in the pad (under useithreads) | ||||
| 4907 | $sv = $self->padval($sv) unless ref $sv; | ||||
| 4908 | return $sv; | ||||
| 4909 | } | ||||
| 4910 | |||||
| 4911 | sub pp_const { | ||||
| 4912 | my $self = shift; | ||||
| 4913 | my($op, $cx) = @_; | ||||
| 4914 | if ($op->private & OPpCONST_ARYBASE) { | ||||
| 4915 | return '$['; | ||||
| 4916 | } | ||||
| 4917 | # if ($op->private & OPpCONST_BARE) { # trouble with '=>' autoquoting | ||||
| 4918 | # return $self->const_sv($op)->PV; | ||||
| 4919 | # } | ||||
| 4920 | my $sv = $self->const_sv($op); | ||||
| 4921 | return $self->const($sv, $cx); | ||||
| 4922 | } | ||||
| 4923 | |||||
| 4924 | sub dq { | ||||
| 4925 | my $self = shift; | ||||
| 4926 | my $op = shift; | ||||
| 4927 | my $type = $op->name; | ||||
| 4928 | if ($type eq "const") { | ||||
| 4929 | return '$[' if $op->private & OPpCONST_ARYBASE; | ||||
| 4930 | return uninterp(escape_str(unback($self->const_sv($op)->as_string))); | ||||
| 4931 | } elsif ($type eq "concat") { | ||||
| 4932 | my $first = $self->dq($op->first); | ||||
| 4933 | my $last = $self->dq($op->last); | ||||
| 4934 | |||||
| 4935 | # Disambiguate "${foo}bar", "${foo}{bar}", "${foo}[1]", "$foo\::bar" | ||||
| 4936 | ($last =~ /^[A-Z\\\^\[\]_?]/ && | ||||
| 4937 | $first =~ s/([\$@])\^$/${1}{^}/) # "${^}W" etc | ||||
| 4938 | || ($last =~ /^[:'{\[\w_]/ && #' | ||||
| 4939 | $first =~ s/([\$@])([A-Za-z_]\w*)$/${1}{$2}/); | ||||
| 4940 | |||||
| 4941 | return $first . $last; | ||||
| 4942 | } elsif ($type eq "uc") { | ||||
| 4943 | return '\U' . $self->dq($op->first->sibling) . '\E'; | ||||
| 4944 | } elsif ($type eq "lc") { | ||||
| 4945 | return '\L' . $self->dq($op->first->sibling) . '\E'; | ||||
| 4946 | } elsif ($type eq "ucfirst") { | ||||
| 4947 | return '\u' . $self->dq($op->first->sibling); | ||||
| 4948 | } elsif ($type eq "lcfirst") { | ||||
| 4949 | return '\l' . $self->dq($op->first->sibling); | ||||
| 4950 | } elsif ($type eq "quotemeta") { | ||||
| 4951 | return '\Q' . $self->dq($op->first->sibling) . '\E'; | ||||
| 4952 | } elsif ($type eq "fc") { | ||||
| 4953 | return '\F' . $self->dq($op->first->sibling) . '\E'; | ||||
| 4954 | } elsif ($type eq "join") { | ||||
| 4955 | return $self->deparse($op->last, 26); # was join($", @ary) | ||||
| 4956 | } else { | ||||
| 4957 | return $self->deparse($op, 26); | ||||
| 4958 | } | ||||
| 4959 | } | ||||
| 4960 | |||||
| 4961 | sub pp_backtick { | ||||
| 4962 | my $self = shift; | ||||
| 4963 | my($op, $cx) = @_; | ||||
| 4964 | # skip pushmark if it exists (readpipe() vs ``) | ||||
| 4965 | my $child = $op->first->sibling->isa('B::NULL') | ||||
| 4966 | ? $op->first : $op->first->sibling; | ||||
| 4967 | if ($self->pure_string($child)) { | ||||
| 4968 | return single_delim("qx", '`', $self->dq($child, 1), $self); | ||||
| 4969 | } | ||||
| 4970 | unop($self, @_, "readpipe"); | ||||
| 4971 | } | ||||
| 4972 | |||||
| 4973 | sub dquote { | ||||
| 4974 | my $self = shift; | ||||
| 4975 | my($op, $cx) = @_; | ||||
| 4976 | my $kid = $op->first->sibling; # skip ex-stringify, pushmark | ||||
| 4977 | return $self->deparse($kid, $cx) if $self->{'unquote'}; | ||||
| 4978 | $self->maybe_targmy($kid, $cx, | ||||
| 4979 | sub {single_delim("qq", '"', $self->dq($_[1]), | ||||
| 4980 | $self)}); | ||||
| 4981 | } | ||||
| 4982 | |||||
| 4983 | # OP_STRINGIFY is a listop, but it only ever has one arg | ||||
| 4984 | sub pp_stringify { | ||||
| 4985 | my ($self, $op, $cx) = @_; | ||||
| 4986 | my $kid = $op->first->sibling; | ||||
| 4987 | while ($kid->name eq 'null' && !null($kid->first)) { | ||||
| 4988 | $kid = $kid->first; | ||||
| 4989 | } | ||||
| 4990 | if ($kid->name =~ /^(?:const|padsv|rv2sv|av2arylen|gvsv|multideref | ||||
| 4991 | |aelemfast(?:_lex)?|[ah]elem|join|concat)\z/x) { | ||||
| 4992 | maybe_targmy(@_, \&dquote); | ||||
| 4993 | } | ||||
| 4994 | else { | ||||
| 4995 | # Actually an optimised join. | ||||
| 4996 | my $result = listop(@_,"join"); | ||||
| 4997 | $result =~ s/join([( ])/join$1$self->{'ex_const'}, /; | ||||
| 4998 | $result; | ||||
| 4999 | } | ||||
| 5000 | } | ||||
| 5001 | |||||
| 5002 | # tr/// and s/// (and tr[][], tr[]//, tr###, etc) | ||||
| 5003 | # note that tr(from)/to/ is OK, but not tr/from/(to) | ||||
| 5004 | sub double_delim { | ||||
| 5005 | my($from, $to) = @_; | ||||
| 5006 | my($succeed, $delim); | ||||
| 5007 | if ($from !~ m[/] and $to !~ m[/]) { | ||||
| 5008 | return "/$from/$to/"; | ||||
| 5009 | } elsif (($succeed, $from) = balanced_delim($from) and $succeed) { | ||||
| 5010 | if (($succeed, $to) = balanced_delim($to) and $succeed) { | ||||
| 5011 | return "$from$to"; | ||||
| 5012 | } else { | ||||
| 5013 | for $delim ('/', '"', '#') { # note no "'" -- s''' is special | ||||
| 5014 | return "$from$delim$to$delim" if index($to, $delim) == -1; | ||||
| 5015 | } | ||||
| 5016 | $to =~ s[/][\\/]g; | ||||
| 5017 | return "$from/$to/"; | ||||
| 5018 | } | ||||
| 5019 | } else { | ||||
| 5020 | for $delim ('/', '"', '#') { # note no ' | ||||
| 5021 | return "$delim$from$delim$to$delim" | ||||
| 5022 | if index($to . $from, $delim) == -1; | ||||
| 5023 | } | ||||
| 5024 | $from =~ s[/][\\/]g; | ||||
| 5025 | $to =~ s[/][\\/]g; | ||||
| 5026 | return "/$from/$to/"; | ||||
| 5027 | } | ||||
| 5028 | } | ||||
| 5029 | |||||
| 5030 | # Only used by tr///, so backslashes hyphens | ||||
| 5031 | sub pchr { # ASCII | ||||
| 5032 | my($n) = @_; | ||||
| 5033 | if ($n == ord '\\') { | ||||
| 5034 | return '\\\\'; | ||||
| 5035 | } elsif ($n == ord "-") { | ||||
| 5036 | return "\\-"; | ||||
| 5037 | } elsif (utf8::native_to_unicode($n) >= utf8::native_to_unicode(ord(' ')) | ||||
| 5038 | and utf8::native_to_unicode($n) <= utf8::native_to_unicode(ord('~'))) | ||||
| 5039 | { | ||||
| 5040 | # I'm presuming a regex is not ok here, otherwise we could have used | ||||
| 5041 | # /[[:print:]]/a to get here | ||||
| 5042 | return chr($n); | ||||
| 5043 | } elsif ($n == ord "\a") { | ||||
| 5044 | return '\\a'; | ||||
| 5045 | } elsif ($n == ord "\b") { | ||||
| 5046 | return '\\b'; | ||||
| 5047 | } elsif ($n == ord "\t") { | ||||
| 5048 | return '\\t'; | ||||
| 5049 | } elsif ($n == ord "\n") { | ||||
| 5050 | return '\\n'; | ||||
| 5051 | } elsif ($n == ord "\e") { | ||||
| 5052 | return '\\e'; | ||||
| 5053 | } elsif ($n == ord "\f") { | ||||
| 5054 | return '\\f'; | ||||
| 5055 | } elsif ($n == ord "\r") { | ||||
| 5056 | return '\\r'; | ||||
| 5057 | } elsif ($n >= ord("\cA") and $n <= ord("\cZ")) { | ||||
| 5058 | return '\\c' . unctrl{chr $n}; | ||||
| 5059 | } else { | ||||
| 5060 | # return '\x' . sprintf("%02x", $n); | ||||
| 5061 | return '\\' . sprintf("%03o", $n); | ||||
| 5062 | } | ||||
| 5063 | } | ||||
| 5064 | |||||
| 5065 | sub collapse { | ||||
| 5066 | my(@chars) = @_; | ||||
| 5067 | my($str, $c, $tr) = (""); | ||||
| 5068 | for ($c = 0; $c < @chars; $c++) { | ||||
| 5069 | $tr = $chars[$c]; | ||||
| 5070 | $str .= pchr($tr); | ||||
| 5071 | if ($c <= $#chars - 2 and $chars[$c + 1] == $tr + 1 and | ||||
| 5072 | $chars[$c + 2] == $tr + 2) | ||||
| 5073 | { | ||||
| 5074 | for (; $c <= $#chars-1 and $chars[$c + 1] == $chars[$c] + 1; $c++) | ||||
| 5075 | {} | ||||
| 5076 | $str .= "-"; | ||||
| 5077 | $str .= pchr($chars[$c]); | ||||
| 5078 | } | ||||
| 5079 | } | ||||
| 5080 | return $str; | ||||
| 5081 | } | ||||
| 5082 | |||||
| 5083 | sub tr_decode_byte { | ||||
| 5084 | my($table, $flags) = @_; | ||||
| 5085 | my(@table) = unpack("s*", $table); | ||||
| 5086 | splice @table, 0x100, 1; # Number of subsequent elements | ||||
| 5087 | my($c, $tr, @from, @to, @delfrom, $delhyphen); | ||||
| 5088 | if ($table[ord "-"] != -1 and | ||||
| 5089 | $table[ord("-") - 1] == -1 || $table[ord("-") + 1] == -1) | ||||
| 5090 | { | ||||
| 5091 | $tr = $table[ord "-"]; | ||||
| 5092 | $table[ord "-"] = -1; | ||||
| 5093 | if ($tr >= 0) { | ||||
| 5094 | @from = ord("-"); | ||||
| 5095 | @to = $tr; | ||||
| 5096 | } else { # -2 ==> delete | ||||
| 5097 | $delhyphen = 1; | ||||
| 5098 | } | ||||
| 5099 | } | ||||
| 5100 | for ($c = 0; $c < @table; $c++) { | ||||
| 5101 | $tr = $table[$c]; | ||||
| 5102 | if ($tr >= 0) { | ||||
| 5103 | push @from, $c; push @to, $tr; | ||||
| 5104 | } elsif ($tr == -2) { | ||||
| 5105 | push @delfrom, $c; | ||||
| 5106 | } | ||||
| 5107 | } | ||||
| 5108 | @from = (@from, @delfrom); | ||||
| 5109 | if ($flags & OPpTRANS_COMPLEMENT) { | ||||
| 5110 | my @newfrom = (); | ||||
| 5111 | my %from; | ||||
| 5112 | @from{@from} = (1) x @from; | ||||
| 5113 | for ($c = 0; $c < 256; $c++) { | ||||
| 5114 | push @newfrom, $c unless $from{$c}; | ||||
| 5115 | } | ||||
| 5116 | @from = @newfrom; | ||||
| 5117 | } | ||||
| 5118 | unless ($flags & OPpTRANS_DELETE || !@to) { | ||||
| 5119 | pop @to while $#to and $to[$#to] == $to[$#to -1]; | ||||
| 5120 | } | ||||
| 5121 | my($from, $to); | ||||
| 5122 | $from = collapse(@from); | ||||
| 5123 | $to = collapse(@to); | ||||
| 5124 | $from .= "-" if $delhyphen; | ||||
| 5125 | return ($from, $to); | ||||
| 5126 | } | ||||
| 5127 | |||||
| 5128 | sub tr_chr { | ||||
| 5129 | my $x = shift; | ||||
| 5130 | if ($x == ord "-") { | ||||
| 5131 | return "\\-"; | ||||
| 5132 | } elsif ($x == ord "\\") { | ||||
| 5133 | return "\\\\"; | ||||
| 5134 | } else { | ||||
| 5135 | return chr $x; | ||||
| 5136 | } | ||||
| 5137 | } | ||||
| 5138 | |||||
| 5139 | # XXX This doesn't yet handle all cases correctly either | ||||
| 5140 | |||||
| 5141 | sub tr_decode_utf8 { | ||||
| 5142 | my($swash_hv, $flags) = @_; | ||||
| 5143 | my %swash = $swash_hv->ARRAY; | ||||
| 5144 | my $final = undef; | ||||
| 5145 | $final = $swash{'FINAL'}->IV if exists $swash{'FINAL'}; | ||||
| 5146 | my $none = $swash{"NONE"}->IV; | ||||
| 5147 | my $extra = $none + 1; | ||||
| 5148 | my(@from, @delfrom, @to); | ||||
| 5149 | my $line; | ||||
| 5150 | foreach $line (split /\n/, $swash{'LIST'}->PV) { | ||||
| 5151 | my($min, $max, $result) = split(/\t/, $line); | ||||
| 5152 | $min = hex $min; | ||||
| 5153 | if (length $max) { | ||||
| 5154 | $max = hex $max; | ||||
| 5155 | } else { | ||||
| 5156 | $max = $min; | ||||
| 5157 | } | ||||
| 5158 | $result = hex $result; | ||||
| 5159 | if ($result == $extra) { | ||||
| 5160 | push @delfrom, [$min, $max]; | ||||
| 5161 | } else { | ||||
| 5162 | push @from, [$min, $max]; | ||||
| 5163 | push @to, [$result, $result + $max - $min]; | ||||
| 5164 | } | ||||
| 5165 | } | ||||
| 5166 | for my $i (0 .. $#from) { | ||||
| 5167 | if ($from[$i][0] == ord '-') { | ||||
| 5168 | unshift @from, splice(@from, $i, 1); | ||||
| 5169 | unshift @to, splice(@to, $i, 1); | ||||
| 5170 | last; | ||||
| 5171 | } elsif ($from[$i][1] == ord '-') { | ||||
| 5172 | $from[$i][1]--; | ||||
| 5173 | $to[$i][1]--; | ||||
| 5174 | unshift @from, ord '-'; | ||||
| 5175 | unshift @to, ord '-'; | ||||
| 5176 | last; | ||||
| 5177 | } | ||||
| 5178 | } | ||||
| 5179 | for my $i (0 .. $#delfrom) { | ||||
| 5180 | if ($delfrom[$i][0] == ord '-') { | ||||
| 5181 | push @delfrom, splice(@delfrom, $i, 1); | ||||
| 5182 | last; | ||||
| 5183 | } elsif ($delfrom[$i][1] == ord '-') { | ||||
| 5184 | $delfrom[$i][1]--; | ||||
| 5185 | push @delfrom, ord '-'; | ||||
| 5186 | last; | ||||
| 5187 | } | ||||
| 5188 | } | ||||
| 5189 | if (defined $final and $to[$#to][1] != $final) { | ||||
| 5190 | push @to, [$final, $final]; | ||||
| 5191 | } | ||||
| 5192 | push @from, @delfrom; | ||||
| 5193 | if ($flags & OPpTRANS_COMPLEMENT) { | ||||
| 5194 | my @newfrom; | ||||
| 5195 | my $next = 0; | ||||
| 5196 | for my $i (0 .. $#from) { | ||||
| 5197 | push @newfrom, [$next, $from[$i][0] - 1]; | ||||
| 5198 | $next = $from[$i][1] + 1; | ||||
| 5199 | } | ||||
| 5200 | @from = (); | ||||
| 5201 | for my $range (@newfrom) { | ||||
| 5202 | if ($range->[0] <= $range->[1]) { | ||||
| 5203 | push @from, $range; | ||||
| 5204 | } | ||||
| 5205 | } | ||||
| 5206 | } | ||||
| 5207 | my($from, $to, $diff); | ||||
| 5208 | for my $chunk (@from) { | ||||
| 5209 | $diff = $chunk->[1] - $chunk->[0]; | ||||
| 5210 | if ($diff > 1) { | ||||
| 5211 | $from .= tr_chr($chunk->[0]) . "-" . tr_chr($chunk->[1]); | ||||
| 5212 | } elsif ($diff == 1) { | ||||
| 5213 | $from .= tr_chr($chunk->[0]) . tr_chr($chunk->[1]); | ||||
| 5214 | } else { | ||||
| 5215 | $from .= tr_chr($chunk->[0]); | ||||
| 5216 | } | ||||
| 5217 | } | ||||
| 5218 | for my $chunk (@to) { | ||||
| 5219 | $diff = $chunk->[1] - $chunk->[0]; | ||||
| 5220 | if ($diff > 1) { | ||||
| 5221 | $to .= tr_chr($chunk->[0]) . "-" . tr_chr($chunk->[1]); | ||||
| 5222 | } elsif ($diff == 1) { | ||||
| 5223 | $to .= tr_chr($chunk->[0]) . tr_chr($chunk->[1]); | ||||
| 5224 | } else { | ||||
| 5225 | $to .= tr_chr($chunk->[0]); | ||||
| 5226 | } | ||||
| 5227 | } | ||||
| 5228 | #$final = sprintf("%04x", $final) if defined $final; | ||||
| 5229 | #$none = sprintf("%04x", $none) if defined $none; | ||||
| 5230 | #$extra = sprintf("%04x", $extra) if defined $extra; | ||||
| 5231 | #print STDERR "final: $final\n none: $none\nextra: $extra\n"; | ||||
| 5232 | #print STDERR $swash{'LIST'}->PV; | ||||
| 5233 | return (escape_str($from), escape_str($to)); | ||||
| 5234 | } | ||||
| 5235 | |||||
| 5236 | sub pp_trans { | ||||
| 5237 | my $self = shift; | ||||
| 5238 | my($op, $cx, $morflags) = @_; | ||||
| 5239 | my($from, $to); | ||||
| 5240 | my $class = class($op); | ||||
| 5241 | my $priv_flags = $op->private; | ||||
| 5242 | if ($class eq "PVOP") { | ||||
| 5243 | ($from, $to) = tr_decode_byte($op->pv, $priv_flags); | ||||
| 5244 | } elsif ($class eq "PADOP") { | ||||
| 5245 | ($from, $to) | ||||
| 5246 | = tr_decode_utf8($self->padval($op->padix)->RV, $priv_flags); | ||||
| 5247 | } else { # class($op) eq "SVOP" | ||||
| 5248 | ($from, $to) = tr_decode_utf8($op->sv->RV, $priv_flags); | ||||
| 5249 | } | ||||
| 5250 | my $flags = ""; | ||||
| 5251 | $flags .= "c" if $priv_flags & OPpTRANS_COMPLEMENT; | ||||
| 5252 | $flags .= "d" if $priv_flags & OPpTRANS_DELETE; | ||||
| 5253 | $to = "" if $from eq $to and $flags eq ""; | ||||
| 5254 | $flags .= "s" if $priv_flags & OPpTRANS_SQUASH; | ||||
| 5255 | $flags .= $morflags if defined $morflags; | ||||
| 5256 | my $ret = $self->keyword("tr") . double_delim($from, $to) . $flags; | ||||
| 5257 | if (my $targ = $op->targ) { | ||||
| 5258 | return $self->maybe_parens($self->padname($targ) . " =~ $ret", | ||||
| 5259 | $cx, 20); | ||||
| 5260 | } | ||||
| 5261 | return $ret; | ||||
| 5262 | } | ||||
| 5263 | |||||
| 5264 | sub pp_transr { push @_, 'r'; goto &pp_trans } | ||||
| 5265 | |||||
| 5266 | sub re_dq_disambiguate { | ||||
| 5267 | my ($first, $last) = @_; | ||||
| 5268 | # Disambiguate "${foo}bar", "${foo}{bar}", "${foo}[1]" | ||||
| 5269 | ($last =~ /^[A-Z\\\^\[\]_?]/ && | ||||
| 5270 | $first =~ s/([\$@])\^$/${1}{^}/) # "${^}W" etc | ||||
| 5271 | || ($last =~ /^[{\[\w_]/ && | ||||
| 5272 | $first =~ s/([\$@])([A-Za-z_]\w*)$/${1}{$2}/); | ||||
| 5273 | return $first . $last; | ||||
| 5274 | } | ||||
| 5275 | |||||
| 5276 | # Like dq(), but different | ||||
| 5277 | sub re_dq { | ||||
| 5278 | my $self = shift; | ||||
| 5279 | my ($op) = @_; | ||||
| 5280 | |||||
| 5281 | my $type = $op->name; | ||||
| 5282 | if ($type eq "const") { | ||||
| 5283 | return '$[' if $op->private & OPpCONST_ARYBASE; | ||||
| 5284 | my $unbacked = re_unback($self->const_sv($op)->as_string); | ||||
| 5285 | return re_uninterp(escape_re($unbacked)); | ||||
| 5286 | } elsif ($type eq "concat") { | ||||
| 5287 | my $first = $self->re_dq($op->first); | ||||
| 5288 | my $last = $self->re_dq($op->last); | ||||
| 5289 | return re_dq_disambiguate($first, $last); | ||||
| 5290 | } elsif ($type eq "uc") { | ||||
| 5291 | return '\U' . $self->re_dq($op->first->sibling) . '\E'; | ||||
| 5292 | } elsif ($type eq "lc") { | ||||
| 5293 | return '\L' . $self->re_dq($op->first->sibling) . '\E'; | ||||
| 5294 | } elsif ($type eq "ucfirst") { | ||||
| 5295 | return '\u' . $self->re_dq($op->first->sibling); | ||||
| 5296 | } elsif ($type eq "lcfirst") { | ||||
| 5297 | return '\l' . $self->re_dq($op->first->sibling); | ||||
| 5298 | } elsif ($type eq "quotemeta") { | ||||
| 5299 | return '\Q' . $self->re_dq($op->first->sibling) . '\E'; | ||||
| 5300 | } elsif ($type eq "fc") { | ||||
| 5301 | return '\F' . $self->re_dq($op->first->sibling) . '\E'; | ||||
| 5302 | } elsif ($type eq "join") { | ||||
| 5303 | return $self->deparse($op->last, 26); # was join($", @ary) | ||||
| 5304 | } else { | ||||
| 5305 | my $ret = $self->deparse($op, 26); | ||||
| 5306 | $ret =~ s/^\$([(|)])\z/\${$1}/ # $( $| $) need braces | ||||
| 5307 | or $ret =~ s/^\@([-+])\z/\@{$1}/; # @- @+ need braces | ||||
| 5308 | return $ret; | ||||
| 5309 | } | ||||
| 5310 | } | ||||
| 5311 | |||||
| 5312 | sub pure_string { | ||||
| 5313 | my ($self, $op) = @_; | ||||
| 5314 | return 0 if null $op; | ||||
| 5315 | my $type = $op->name; | ||||
| 5316 | |||||
| 5317 | if ($type eq 'const' || $type eq 'av2arylen') { | ||||
| 5318 | return 1; | ||||
| 5319 | } | ||||
| 5320 | elsif ($type =~ /^(?:[ul]c(first)?|fc)$/ || $type eq 'quotemeta') { | ||||
| 5321 | return $self->pure_string($op->first->sibling); | ||||
| 5322 | } | ||||
| 5323 | elsif ($type eq 'join') { | ||||
| 5324 | my $join_op = $op->first->sibling; # Skip pushmark | ||||
| 5325 | return 0 unless $join_op->name eq 'null' && $join_op->targ == OP_RV2SV; | ||||
| 5326 | |||||
| 5327 | my $gvop = $join_op->first; | ||||
| 5328 | return 0 unless $gvop->name eq 'gvsv'; | ||||
| 5329 | return 0 unless '"' eq $self->gv_name($self->gv_or_padgv($gvop)); | ||||
| 5330 | |||||
| 5331 | return 0 unless ${$join_op->sibling} eq ${$op->last}; | ||||
| 5332 | return 0 unless $op->last->name =~ /^(?:[ah]slice|(?:rv2|pad)av)$/; | ||||
| 5333 | } | ||||
| 5334 | elsif ($type eq 'concat') { | ||||
| 5335 | return $self->pure_string($op->first) | ||||
| 5336 | && $self->pure_string($op->last); | ||||
| 5337 | } | ||||
| 5338 | elsif (is_scalar($op) || $type =~ /^[ah]elem$/) { | ||||
| 5339 | return 1; | ||||
| 5340 | } | ||||
| 5341 | elsif ($type eq "null" and $op->can('first') and not null $op->first) { | ||||
| 5342 | my $first = $op->first; | ||||
| 5343 | |||||
| 5344 | return 1 if $first->name eq "multideref"; | ||||
| 5345 | return 1 if $first->name eq "aelemfast_lex"; | ||||
| 5346 | |||||
| 5347 | if ( $first->name eq "null" | ||||
| 5348 | and $first->can('first') | ||||
| 5349 | and not null $first->first | ||||
| 5350 | and $first->first->name eq "aelemfast" | ||||
| 5351 | ) | ||||
| 5352 | { | ||||
| 5353 | return 1; | ||||
| 5354 | } | ||||
| 5355 | } | ||||
| 5356 | |||||
| 5357 | return 0; | ||||
| 5358 | } | ||||
| 5359 | |||||
| 5360 | sub code_list { | ||||
| 5361 | my ($self,$op,$cv) = @_; | ||||
| 5362 | |||||
| 5363 | # localise stuff relating to the current sub | ||||
| 5364 | $cv and | ||||
| 5365 | local($self->{'curcv'}) = $cv, | ||||
| 5366 | local($self->{'curcvlex'}), | ||||
| 5367 | local(@$self{qw'curstash warnings hints hinthash curcop'}) | ||||
| 5368 | = @$self{qw'curstash warnings hints hinthash curcop'}; | ||||
| 5369 | |||||
| 5370 | my $re; | ||||
| 5371 | for ($op = $op->first->sibling; !null($op); $op = $op->sibling) { | ||||
| 5372 | if ($op->name eq 'null' and $op->flags & OPf_SPECIAL) { | ||||
| 5373 | my $scope = $op->first; | ||||
| 5374 | # 0 context (last arg to scopeop) means statement context, so | ||||
| 5375 | # the contents of the block will not be wrapped in do{...}. | ||||
| 5376 | my $block = scopeop($scope->first->name eq "enter", $self, | ||||
| 5377 | $scope, 0); | ||||
| 5378 | # next op is the source code of the block | ||||
| 5379 | $op = $op->sibling; | ||||
| 5380 | $re .= ($self->const_sv($op)->PV =~ m|^(\(\?\??\{)|)[0]; | ||||
| 5381 | my $multiline = $block =~ /\n/; | ||||
| 5382 | $re .= $multiline ? "\n\t" : ' '; | ||||
| 5383 | $re .= $block; | ||||
| 5384 | $re .= $multiline ? "\n\b})" : " })"; | ||||
| 5385 | } else { | ||||
| 5386 | $re = re_dq_disambiguate($re, $self->re_dq($op)); | ||||
| 5387 | } | ||||
| 5388 | } | ||||
| 5389 | $re; | ||||
| 5390 | } | ||||
| 5391 | |||||
| 5392 | sub regcomp { | ||||
| 5393 | my $self = shift; | ||||
| 5394 | my($op, $cx) = @_; | ||||
| 5395 | my $kid = $op->first; | ||||
| 5396 | $kid = $kid->first if $kid->name eq "regcmaybe"; | ||||
| 5397 | $kid = $kid->first if $kid->name eq "regcreset"; | ||||
| 5398 | my $kname = $kid->name; | ||||
| 5399 | if ($kname eq "null" and !null($kid->first) | ||||
| 5400 | and $kid->first->name eq 'pushmark') | ||||
| 5401 | { | ||||
| 5402 | my $str = ''; | ||||
| 5403 | $kid = $kid->first->sibling; | ||||
| 5404 | while (!null($kid)) { | ||||
| 5405 | my $first = $str; | ||||
| 5406 | my $last = $self->re_dq($kid); | ||||
| 5407 | $str = re_dq_disambiguate($first, $last); | ||||
| 5408 | $kid = $kid->sibling; | ||||
| 5409 | } | ||||
| 5410 | return $str, 1; | ||||
| 5411 | } | ||||
| 5412 | |||||
| 5413 | return ($self->re_dq($kid), 1) | ||||
| 5414 | if $kname =~ /^(?:rv2|pad)av/ or $self->pure_string($kid); | ||||
| 5415 | return ($self->deparse($kid, $cx), 0); | ||||
| 5416 | } | ||||
| 5417 | |||||
| 5418 | sub pp_regcomp { | ||||
| 5419 | my ($self, $op, $cx) = @_; | ||||
| 5420 | return (($self->regcomp($op, $cx, 0))[0]); | ||||
| 5421 | } | ||||
| 5422 | |||||
| 5423 | sub re_flags { | ||||
| 5424 | my ($self, $op) = @_; | ||||
| 5425 | my $flags = ''; | ||||
| 5426 | my $pmflags = $op->pmflags; | ||||
| 5427 | if (!$pmflags) { | ||||
| 5428 | my $re = $op->pmregexp; | ||||
| 5429 | if ($$re) { | ||||
| 5430 | $pmflags = $re->compflags; | ||||
| 5431 | } | ||||
| 5432 | } | ||||
| 5433 | $flags .= "g" if $pmflags & PMf_GLOBAL; | ||||
| 5434 | $flags .= "i" if $pmflags & PMf_FOLD; | ||||
| 5435 | $flags .= "m" if $pmflags & PMf_MULTILINE; | ||||
| 5436 | $flags .= "o" if $pmflags & PMf_KEEP; | ||||
| 5437 | $flags .= "s" if $pmflags & PMf_SINGLELINE; | ||||
| 5438 | $flags .= "x" if $pmflags & PMf_EXTENDED; | ||||
| 5439 | $flags .= "x" if $pmflags & PMf_EXTENDED_MORE; | ||||
| 5440 | $flags .= "p" if $pmflags & RXf_PMf_KEEPCOPY; | ||||
| 5441 | if (my $charset = $pmflags & RXf_PMf_CHARSET) { | ||||
| 5442 | # Hardcoding this is fragile, but B does not yet export the | ||||
| 5443 | # constants we need. | ||||
| 5444 | $flags .= qw(d l u a aa)[$charset >> 7] | ||||
| 5445 | } | ||||
| 5446 | # The /d flag is indicated by 0; only show it if necessary. | ||||
| 5447 | elsif ($self->{hinthash} and | ||||
| 5448 | $self->{hinthash}{reflags_charset} | ||||
| 5449 | || $self->{hinthash}{feature_unicode} | ||||
| 5450 | or $self->{hints} & $feature::hint_mask | ||||
| 5451 | && ($self->{hints} & $feature::hint_mask) | ||||
| 5452 | != $feature::hint_mask | ||||
| 5453 | && do { | ||||
| 5454 | $self->{hints} & $feature::hint_uni8bit; | ||||
| 5455 | } | ||||
| 5456 | ) { | ||||
| 5457 | $flags .= 'd'; | ||||
| 5458 | } | ||||
| 5459 | $flags; | ||||
| 5460 | } | ||||
| 5461 | |||||
| 5462 | # osmic acid -- see osmium tetroxide | ||||
| 5463 | |||||
| 5464 | my %matchwords; | ||||
| 5465 | 1 | 40µs | 23 | 6µs | map($matchwords{join "", sort split //, $_} = $_, 'cig', 'cog', 'cos', 'cogs', # spent 6µs making 23 calls to B::Deparse::CORE:sort, avg 248ns/call |
| 5466 | 'cox', 'go', 'is', 'ism', 'iso', 'mig', 'mix', 'osmic', 'ox', 'sic', | ||||
| 5467 | 'sig', 'six', 'smog', 'so', 'soc', 'sog', 'xi', 'soup', 'soupmix'); | ||||
| 5468 | |||||
| 5469 | # When deparsing a regular expression with code blocks, we have to look in | ||||
| 5470 | # various places to find the blocks. | ||||
| 5471 | # | ||||
| 5472 | # For qr/(?{...})/ without interpolation, the CV is under $qr->qr_anoncv | ||||
| 5473 | # and the code list (list of blocks and constants, maybe vars) is under | ||||
| 5474 | # $cv->ROOT->first->code_list: | ||||
| 5475 | # ./perl -Ilib -MB -e 'use O "Concise", B::svref_2object(sub {qr/(?{die})/})->ROOT->first->first->sibling->pmregexp->qr_anoncv->object_2svref' | ||||
| 5476 | # | ||||
| 5477 | # For qr/$a(?{...})/ with interpolation, the code list is more accessible, | ||||
| 5478 | # under $pmop->code_list, but the $cv is something you have to dig for in | ||||
| 5479 | # the regcomp op’s kids: | ||||
| 5480 | # ./perl -Ilib -mO=Concise -e 'qr/$a(?{die})/' | ||||
| 5481 | # | ||||
| 5482 | # For m// and split //, things are much simpler. There is no CV. The code | ||||
| 5483 | # list is under $pmop->code_list. | ||||
| 5484 | |||||
| 5485 | sub matchop { | ||||
| 5486 | my $self = shift; | ||||
| 5487 | my($op, $cx, $name, $delim) = @_; | ||||
| 5488 | my $kid = $op->first; | ||||
| 5489 | my ($binop, $var, $re) = ("", "", ""); | ||||
| 5490 | if ($op->flags & OPf_STACKED) { | ||||
| 5491 | $binop = 1; | ||||
| 5492 | $var = $self->deparse($kid, 20); | ||||
| 5493 | $kid = $kid->sibling; | ||||
| 5494 | } | ||||
| 5495 | # not $name; $name will be 'm' for both match and split | ||||
| 5496 | elsif ($op->name eq 'match' and my $targ = $op->targ) { | ||||
| 5497 | $binop = 1; | ||||
| 5498 | $var = $self->padname($targ); | ||||
| 5499 | } | ||||
| 5500 | my $quote = 1; | ||||
| 5501 | my $pmflags = $op->pmflags; | ||||
| 5502 | my $rhs_bound_to_defsv; | ||||
| 5503 | my ($cv, $bregexp); | ||||
| 5504 | my $have_kid = !null $kid; | ||||
| 5505 | # Check for code blocks first | ||||
| 5506 | if (not null my $code_list = $op->code_list) { | ||||
| 5507 | $re = $self->code_list($code_list, | ||||
| 5508 | $op->name eq 'qr' | ||||
| 5509 | ? $self->padval( | ||||
| 5510 | $kid->first # ex-list | ||||
| 5511 | ->first # pushmark | ||||
| 5512 | ->sibling # entersub | ||||
| 5513 | ->first # ex-list | ||||
| 5514 | ->first # pushmark | ||||
| 5515 | ->sibling # srefgen | ||||
| 5516 | ->first # ex-list | ||||
| 5517 | ->first # anoncode | ||||
| 5518 | ->targ | ||||
| 5519 | ) | ||||
| 5520 | : undef); | ||||
| 5521 | } elsif (${$bregexp = $op->pmregexp} && ${$cv = $bregexp->qr_anoncv}) { | ||||
| 5522 | my $patop = $cv->ROOT # leavesub | ||||
| 5523 | ->first # qr | ||||
| 5524 | ->code_list;# list | ||||
| 5525 | $re = $self->code_list($patop, $cv); | ||||
| 5526 | } elsif (!$have_kid) { | ||||
| 5527 | $re = re_uninterp(escape_re(re_unback($op->precomp))); | ||||
| 5528 | } elsif ($kid->name ne 'regcomp') { | ||||
| 5529 | carp("found ".$kid->name." where regcomp expected"); | ||||
| 5530 | } else { | ||||
| 5531 | ($re, $quote) = $self->regcomp($kid, 21); | ||||
| 5532 | } | ||||
| 5533 | if ($have_kid and $kid->name eq 'regcomp') { | ||||
| 5534 | my $matchop = $kid->first; | ||||
| 5535 | if ($matchop->name eq 'regcreset') { | ||||
| 5536 | $matchop = $matchop->first; | ||||
| 5537 | } | ||||
| 5538 | if ($matchop->name =~ /^(?:match|transr?|subst)\z/ | ||||
| 5539 | && $matchop->flags & OPf_SPECIAL) { | ||||
| 5540 | $rhs_bound_to_defsv = 1; | ||||
| 5541 | } | ||||
| 5542 | } | ||||
| 5543 | my $flags = ""; | ||||
| 5544 | $flags .= "c" if $pmflags & PMf_CONTINUE; | ||||
| 5545 | $flags .= $self->re_flags($op); | ||||
| 5546 | $flags = join '', sort split //, $flags; | ||||
| 5547 | $flags = $matchwords{$flags} if $matchwords{$flags}; | ||||
| 5548 | if ($pmflags & PMf_ONCE) { # only one kind of delimiter works here | ||||
| 5549 | $re =~ s/\?/\\?/g; | ||||
| 5550 | $re = $self->keyword("m") . "?$re?"; # explicit 'm' is required | ||||
| 5551 | } elsif ($quote) { | ||||
| 5552 | $re = single_delim($name, $delim, $re, $self); | ||||
| 5553 | } | ||||
| 5554 | $re = $re . $flags if $quote; | ||||
| 5555 | if ($binop) { | ||||
| 5556 | return | ||||
| 5557 | $self->maybe_parens( | ||||
| 5558 | $rhs_bound_to_defsv | ||||
| 5559 | ? "$var =~ (\$_ =~ $re)" | ||||
| 5560 | : "$var =~ $re", | ||||
| 5561 | $cx, 20 | ||||
| 5562 | ); | ||||
| 5563 | } else { | ||||
| 5564 | return $re; | ||||
| 5565 | } | ||||
| 5566 | } | ||||
| 5567 | |||||
| 5568 | sub pp_match { matchop(@_, "m", "/") } | ||||
| 5569 | sub pp_pushre { matchop(@_, "m", "/") } | ||||
| 5570 | sub pp_qr { matchop(@_, "qr", "") } | ||||
| 5571 | |||||
| 5572 | sub pp_runcv { unop(@_, "__SUB__"); } | ||||
| 5573 | |||||
| 5574 | sub pp_split { | ||||
| 5575 | maybe_targmy(@_, \&split); | ||||
| 5576 | } | ||||
| 5577 | sub split { | ||||
| 5578 | my $self = shift; | ||||
| 5579 | my($op, $cx) = @_; | ||||
| 5580 | my($kid, @exprs, $ary, $expr); | ||||
| 5581 | $kid = $op->first; | ||||
| 5582 | |||||
| 5583 | # For our kid (an OP_PUSHRE), pmreplroot is never actually the | ||||
| 5584 | # root of a replacement; it's either empty, or abused to point to | ||||
| 5585 | # the GV for an array we split into (an optimization to save | ||||
| 5586 | # assignment overhead). Depending on whether we're using ithreads, | ||||
| 5587 | # this OP* holds either a GV* or a PADOFFSET. Luckily, B.xs | ||||
| 5588 | # figures out for us which it is. | ||||
| 5589 | my $replroot = $kid->pmreplroot; | ||||
| 5590 | my $gv = 0; | ||||
| 5591 | my $stacked = $op->flags & OPf_STACKED; | ||||
| 5592 | if (ref($replroot) eq "B::GV") { | ||||
| 5593 | $gv = $replroot; | ||||
| 5594 | } elsif (!ref($replroot) and $replroot > 0) { | ||||
| 5595 | $gv = $self->padval($replroot); | ||||
| 5596 | } elsif ($kid->targ) { | ||||
| 5597 | $ary = $self->padname($kid->targ) | ||||
| 5598 | } elsif ($stacked) { | ||||
| 5599 | $ary = $self->deparse($op->last, 7); | ||||
| 5600 | } | ||||
| 5601 | $ary = $self->maybe_local(@_, | ||||
| 5602 | $self->stash_variable('@', | ||||
| 5603 | $self->gv_name($gv), | ||||
| 5604 | $cx)) | ||||
| 5605 | if $gv; | ||||
| 5606 | |||||
| 5607 | # Skip the last kid when OPf_STACKED is set, since it is the array | ||||
| 5608 | # on the left. | ||||
| 5609 | for (; !null($stacked ? $kid->sibling : $kid); $kid = $kid->sibling) { | ||||
| 5610 | push @exprs, $self->deparse($kid, 6); | ||||
| 5611 | } | ||||
| 5612 | |||||
| 5613 | # handle special case of split(), and split(' ') that compiles to /\s+/ | ||||
| 5614 | # Under 5.10, the reflags may be undef if the split regexp isn't a constant | ||||
| 5615 | # Under 5.17.5-5.17.9, the special flag is on split itself. | ||||
| 5616 | $kid = $op->first; | ||||
| 5617 | if ( $op->flags & OPf_SPECIAL | ||||
| 5618 | or ( | ||||
| 5619 | $kid->flags & OPf_SPECIAL | ||||
| 5620 | and ( $] < 5.009 ? $kid->pmflags & PMf_SKIPWHITE() | ||||
| 5621 | : ($kid->reflags || 0) & RXf_SKIPWHITE() | ||||
| 5622 | ) | ||||
| 5623 | ) | ||||
| 5624 | ) { | ||||
| 5625 | $exprs[0] = "' '"; | ||||
| 5626 | } | ||||
| 5627 | |||||
| 5628 | $expr = "split(" . join(", ", @exprs) . ")"; | ||||
| 5629 | if ($ary) { | ||||
| 5630 | return $self->maybe_parens("$ary = $expr", $cx, 7); | ||||
| 5631 | } else { | ||||
| 5632 | return $expr; | ||||
| 5633 | } | ||||
| 5634 | } | ||||
| 5635 | |||||
| 5636 | # oxime -- any of various compounds obtained chiefly by the action of | ||||
| 5637 | # hydroxylamine on aldehydes and ketones and characterized by the | ||||
| 5638 | # bivalent grouping C=NOH [Webster's Tenth] | ||||
| 5639 | |||||
| 5640 | 1 | 0s | my %substwords; | ||
| 5641 | 1 | 61µs | 43 | 6µs | map($substwords{join "", sort split //, $_} = $_, 'ego', 'egoism', 'em', # spent 6µs making 43 calls to B::Deparse::CORE:sort, avg 147ns/call |
| 5642 | 'es', 'ex', 'exes', 'gee', 'go', 'goes', 'ie', 'ism', 'iso', 'me', | ||||
| 5643 | 'meese', 'meso', 'mig', 'mix', 'os', 'ox', 'oxime', 'see', 'seem', | ||||
| 5644 | 'seg', 'sex', 'sig', 'six', 'smog', 'sog', 'some', 'xi', 'rogue', | ||||
| 5645 | 'sir', 'rise', 'smore', 'more', 'seer', 'rome', 'gore', 'grim', 'grime', | ||||
| 5646 | 'or', 'rose', 'rosie'); | ||||
| 5647 | |||||
| 5648 | sub pp_subst { | ||||
| 5649 | my $self = shift; | ||||
| 5650 | my($op, $cx) = @_; | ||||
| 5651 | my $kid = $op->first; | ||||
| 5652 | my($binop, $var, $re, $repl) = ("", "", "", ""); | ||||
| 5653 | if ($op->flags & OPf_STACKED) { | ||||
| 5654 | $binop = 1; | ||||
| 5655 | $var = $self->deparse($kid, 20); | ||||
| 5656 | $kid = $kid->sibling; | ||||
| 5657 | } | ||||
| 5658 | elsif (my $targ = $op->targ) { | ||||
| 5659 | $binop = 1; | ||||
| 5660 | $var = $self->padname($targ); | ||||
| 5661 | } | ||||
| 5662 | my $flags = ""; | ||||
| 5663 | my $pmflags = $op->pmflags; | ||||
| 5664 | if (null($op->pmreplroot)) { | ||||
| 5665 | $repl = $kid; | ||||
| 5666 | $kid = $kid->sibling; | ||||
| 5667 | } else { | ||||
| 5668 | $repl = $op->pmreplroot->first; # skip substcont | ||||
| 5669 | } | ||||
| 5670 | while ($repl->name eq "entereval") { | ||||
| 5671 | $repl = $repl->first; | ||||
| 5672 | $flags .= "e"; | ||||
| 5673 | } | ||||
| 5674 | { | ||||
| 5675 | local $self->{in_subst_repl} = 1; | ||||
| 5676 | if ($pmflags & PMf_EVAL) { | ||||
| 5677 | $repl = $self->deparse($repl->first, 0); | ||||
| 5678 | } else { | ||||
| 5679 | $repl = $self->dq($repl); | ||||
| 5680 | } | ||||
| 5681 | } | ||||
| 5682 | if (not null my $code_list = $op->code_list) { | ||||
| 5683 | $re = $self->code_list($code_list); | ||||
| 5684 | } elsif (null $kid) { | ||||
| 5685 | $re = re_uninterp(escape_re(re_unback($op->precomp))); | ||||
| 5686 | } else { | ||||
| 5687 | ($re) = $self->regcomp($kid, 1); | ||||
| 5688 | } | ||||
| 5689 | $flags .= "r" if $pmflags & PMf_NONDESTRUCT; | ||||
| 5690 | $flags .= "e" if $pmflags & PMf_EVAL; | ||||
| 5691 | $flags .= $self->re_flags($op); | ||||
| 5692 | $flags = join '', sort split //, $flags; | ||||
| 5693 | $flags = $substwords{$flags} if $substwords{$flags}; | ||||
| 5694 | my $core_s = $self->keyword("s"); # maybe CORE::s | ||||
| 5695 | if ($binop) { | ||||
| 5696 | return $self->maybe_parens("$var =~ $core_s" | ||||
| 5697 | . double_delim($re, $repl) . $flags, | ||||
| 5698 | $cx, 20); | ||||
| 5699 | } else { | ||||
| 5700 | return "$core_s". double_delim($re, $repl) . $flags; | ||||
| 5701 | } | ||||
| 5702 | } | ||||
| 5703 | |||||
| 5704 | sub is_lexical_subs { | ||||
| 5705 | my (@ops) = shift; | ||||
| 5706 | for my $op (@ops) { | ||||
| 5707 | return 0 if $op->name !~ /\A(?:introcv|clonecv)\z/; | ||||
| 5708 | } | ||||
| 5709 | return 1; | ||||
| 5710 | } | ||||
| 5711 | |||||
| 5712 | # Pretend these two ops do not exist. The perl parser adds them to the | ||||
| 5713 | # beginning of any block containing my-sub declarations, whereas we handle | ||||
| 5714 | # the subs in pad_subs and next_todo. | ||||
| 5715 | 1 | 200ns | *pp_clonecv = *pp_introcv; | ||
| 5716 | sub pp_introcv { | ||||
| 5717 | my $self = shift; | ||||
| 5718 | my($op, $cx) = @_; | ||||
| 5719 | # For now, deparsing doesn't worry about the distinction between introcv | ||||
| 5720 | # and clonecv, so pretend this op doesn't exist: | ||||
| 5721 | return ''; | ||||
| 5722 | } | ||||
| 5723 | |||||
| 5724 | sub pp_padcv { | ||||
| 5725 | my $self = shift; | ||||
| 5726 | my($op, $cx) = @_; | ||||
| 5727 | return $self->padany($op); | ||||
| 5728 | } | ||||
| 5729 | |||||
| 5730 | 1 | 2µs | my %lvref_funnies = ( | ||
| 5731 | OPpLVREF_SV, => '$', | ||||
| 5732 | OPpLVREF_AV, => '@', | ||||
| 5733 | OPpLVREF_HV, => '%', | ||||
| 5734 | OPpLVREF_CV, => '&', | ||||
| 5735 | ); | ||||
| 5736 | |||||
| 5737 | sub pp_refassign { | ||||
| 5738 | my ($self, $op, $cx) = @_; | ||||
| 5739 | my $left; | ||||
| 5740 | if ($op->private & OPpLVREF_ELEM) { | ||||
| 5741 | $left = $op->first->sibling; | ||||
| 5742 | $left = maybe_local(@_, elem($self, $left, undef, | ||||
| 5743 | $left->targ == OP_AELEM | ||||
| 5744 | ? qw([ ] padav) | ||||
| 5745 | : qw({ } padhv))); | ||||
| 5746 | } elsif ($op->flags & OPf_STACKED) { | ||||
| 5747 | $left = maybe_local(@_, | ||||
| 5748 | $lvref_funnies{$op->private & OPpLVREF_TYPE} | ||||
| 5749 | . $self->deparse($op->first->sibling)); | ||||
| 5750 | } else { | ||||
| 5751 | $left = &pp_padsv; | ||||
| 5752 | } | ||||
| 5753 | my $right = $self->deparse_binop_right($op, $op->first, 7); | ||||
| 5754 | return $self->maybe_parens("\\$left = $right", $cx, 7); | ||||
| 5755 | } | ||||
| 5756 | |||||
| 5757 | sub pp_lvref { | ||||
| 5758 | my ($self, $op, $cx) = @_; | ||||
| 5759 | my $code; | ||||
| 5760 | if ($op->private & OPpLVREF_ELEM) { | ||||
| 5761 | $code = $op->first->name =~ /av\z/ ? &pp_aelem : &pp_helem; | ||||
| 5762 | } elsif ($op->flags & OPf_STACKED) { | ||||
| 5763 | $code = maybe_local(@_, | ||||
| 5764 | $lvref_funnies{$op->private & OPpLVREF_TYPE} | ||||
| 5765 | . $self->deparse($op->first)); | ||||
| 5766 | } else { | ||||
| 5767 | $code = &pp_padsv; | ||||
| 5768 | } | ||||
| 5769 | "\\$code"; | ||||
| 5770 | } | ||||
| 5771 | |||||
| 5772 | sub pp_lvrefslice { | ||||
| 5773 | my ($self, $op, $cx) = @_; | ||||
| 5774 | '\\' . ($op->last->name =~ /av\z/ ? &pp_aslice : &pp_hslice); | ||||
| 5775 | } | ||||
| 5776 | |||||
| 5777 | sub pp_lvavref { | ||||
| 5778 | my ($self, $op, $cx) = @_; | ||||
| 5779 | '\\(' . ($op->flags & OPf_STACKED | ||||
| 5780 | ? maybe_local(@_, rv2x(@_, "\@")) | ||||
| 5781 | : &pp_padsv) . ')' | ||||
| 5782 | } | ||||
| 5783 | |||||
| 5784 | 1 | 15µs | 1; | ||
| 5785 | __END__ | ||||
# spent 3µs within B::Deparse::CORE:qr which was called:
# once (3µs+0s) by B::Deparse::BEGIN@4588 at line 4598 | |||||
sub B::Deparse::CORE:sort; # opcode |