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

### Method Summary

All Methods Instance Methods Concrete Methods
`java.lang.String` `getFilename()`
`long` `getMTime()`
`int` `getVersion()`
`org.objectweb.asm.AnnotationVisitor` `visitAnnotation(java.lang.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 Detail

#### AnnotationReader

    public AnnotationReader(byte[] data)
                     throws java.io.IOException

Reads the classfile bytecode in data and to extract the version.

Throws:
  `java.io.IOException` - - if the classfile is malformed.

### Method Detail

#### visitAnnotation

    public org.objectweb.asm.AnnotationVisitor visitAnnotation(java.lang.String desc,
                                                               boolean visible)

Overrides:
  `visitAnnotation` in class `org.objectweb.asm.ClassVisitor`

#### getVersion

    public int getVersion()

#### getMTime

    public long getMTime()

#### getFilename

    public java.lang.String getFilename()