Package org.python.core

Class AnnotationReader

java.lang.Object
org.objectweb.asm.ClassVisitor
org.python.core.AnnotationReader
public class AnnotationReader extends org.objectweb.asm.ClassVisitor
This class reads a classfile from a byte array and pulls out the value of the class annotation for APIVersion, which can then be retrieved by a call to getVersion(). Hopefully the use of ClassReader in this implementation is not too expensive. I suspect it is not since EmptyVisitor is just a bag of empty methods so shouldn't cost too much. If it turns out to cost too much, we will want to implement a special purpose ClassReader that only reads out the APIVersion annotation I think.

  • Constructor Summary

    Constructors
    Constructor
    Description
    AnnotationReader(byte[] data)
    Reads the classfile bytecode in data and to extract the version.

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    getFilename()
     
    long
    getMTime()
     
    int
    getVersion()
     
    org.objectweb.asm.AnnotationVisitor
    visitAnnotation(String desc, boolean visible)
     

    Methods inherited from class org.objectweb.asm.ClassVisitor

    getDelegate, visit, visitAttribute, visitEnd, visitField, visitInnerClass, visitMethod, visitModule, visitNestHost, visitNestMember, visitOuterClass, visitPermittedSubclass, visitRecordComponent, visitSource, visitTypeAnnotation

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • AnnotationReader

      public AnnotationReader(byte[] data) throws IOException
      Reads the classfile bytecode in data and to extract the version.
      Throws:
      IOException - - if the classfile is malformed.

  • Method Details

    • visitAnnotation

      public org.objectweb.asm.AnnotationVisitor visitAnnotation(String desc, boolean visible)
      Overrides:
      visitAnnotation in class org.objectweb.asm.ClassVisitor

    • getVersion

      public int getVersion()

    • getMTime

      public long getMTime()

    • getFilename

      public String getFilename()