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ASMStackMapAttribute (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.asm.util.attrs
Class ASMStackMapAttribute

java.lang.Object
  org.drools.asm.Attribute
      org.drools.asm.attrs.StackMapAttribute
          org.drools.asm.util.attrs.ASMStackMapAttribute

All Implemented Interfaces:

ASMifiable, Traceable

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public class ASMStackMapAttribute
extends StackMapAttribute
implements ASMifiable, Traceable

An ASMifiable StackMapAttribute sub class.

Author:

Eugene Kuleshov

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Field Summary

 

Fields inherited from class org.drools.asm.attrs.StackMapAttribute
frames

 

Fields inherited from class org.drools.asm.Attribute
type

 

Constructor Summary
ASMStackMapAttribute()
ASMStackMapAttribute(List frames, int len)

 

Method Summary
protected  void	appendLabel(StringBuffer buf, Map labelNames, Label l)
void	asmify(StringBuffer buf, String varName, Map labelNames)           Prints the ASM code to create an attribute equal to this attribute.
protected  Attribute	read(ClassReader cr, int off, int len, char[] buf, int codeOff, Label[] labels)           Reads a type attribute.
void	trace(StringBuffer buf, Map labelNames)           Build a human readable representation of the attribute.

 

Methods inherited from class org.drools.asm.attrs.StackMapAttribute
getFrame, getFrames, getLabels, isCodeAttribute, isUnknown, toString, write

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

ASMStackMapAttribute

public ASMStackMapAttribute()

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ASMStackMapAttribute

public ASMStackMapAttribute(List frames,
                            int len)

Method Detail

read

protected Attribute read(ClassReader cr,
                         int off,
                         int len,
                         char[] buf,
                         int codeOff,
                         Label[] labels)

Description copied from class: Attribute

Reads a type attribute. This method must return a new Attribute object, of type type, corresponding to the len bytes starting at the given offset, in the given class reader.

Overrides:

read in class StackMapAttribute

Parameters:

cr - the class that contains the attribute to be read.

off - index of the first byte of the attribute's content in cr.b. The 6 attribute header bytes, containing the type and the length of the attribute, are not taken into account here.

len - the length of the attribute's content.

buf - buffer to be used to call readUTF8, readClass or readConst.

codeOff - index of the first byte of code's attribute content in cr.b, or -1 if the attribute to be read is not a code attribute. The 6 attribute header bytes, containing the type and the length of the attribute, are not taken into account here.

labels - the labels of the method's code, or null if the attribute to be read is not a code attribute.

Returns:

a new Attribute object corresponding to the given bytes.

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asmify

public void asmify(StringBuffer buf,
                   String varName,
                   Map labelNames)

Description copied from interface: ASMifiable

Prints the ASM code to create an attribute equal to this attribute.

Specified by:

asmify in interface ASMifiable

Parameters:

buf - A buffer used for printing Java code.

varName - name of the variable in a printed code used to store attribute instance.

labelNames - map of label instances to their names.

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trace

public void trace(StringBuffer buf,
                  Map labelNames)

Description copied from interface: Traceable

Build a human readable representation of the attribute.

Specified by:

trace in interface Traceable

Parameters:

buf - A buffer used for printing Java code.

labelNames - map of label instances to their names.

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appendLabel

protected void appendLabel(StringBuffer buf,
                           Map labelNames,
                           Label l)

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