com.ikokoon.serenity.instrumentation.coverage
Class CoverageMethodAdapter

java.lang.Object
  org.objectweb.asm.MethodAdapter
      com.ikokoon.serenity.instrumentation.coverage.CoverageMethodAdapter

All Implemented Interfaces:

org.objectweb.asm.MethodVisitor

public class CoverageMethodAdapter
extends org.objectweb.asm.MethodAdapter

This class actually enhances the lines to call the collector class which gathers the data on the lines that are executed during the unit tests.

Since:

12.07.09

Version:

01.00

Author:

Michael Couck

Field Summary

Fields inherited from class org.objectweb.asm.MethodAdapter

mv

Constructor Summary

CoverageMethodAdapter(org.objectweb.asm.MethodVisitor methodVisitor, java.lang.String className, java.lang.String methodName, java.lang.String methodDescription)
The constructor initialises a CoverageMethodAdapter that takes all the interesting items for the method that is to be enhanced including the parent method visitor.

Method Summary

void	visitLineNumber(int lineNumber, org.objectweb.asm.Label label) This is the method that actually adds the instructions to the enhanced class.

Methods inherited from class org.objectweb.asm.MethodAdapter

visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitEnd, visitFieldInsn, visitFrame, visitIincInsn, visitInsn, visitIntInsn, visitJumpInsn, visitLabel, visitLdcInsn, visitLocalVariable, visitLookupSwitchInsn, visitMaxs, visitMethodInsn, visitMultiANewArrayInsn, visitParameterAnnotation, visitTableSwitchInsn, visitTryCatchBlock, visitTypeInsn, visitVarInsn

Methods inherited from class java.lang.Object

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

Constructor Detail

CoverageMethodAdapter

public CoverageMethodAdapter(org.objectweb.asm.MethodVisitor methodVisitor,
                             java.lang.String className,
                             java.lang.String methodName,
                             java.lang.String methodDescription)

The constructor initialises a CoverageMethodAdapter that takes all the interesting items for the method that is to be enhanced including the parent method visitor.

Parameters:

methodVisitor - the method visitor of the parent

className - the name of the class the method belongs to

methodName - the name of the method

methodDescription - the description of the method

Method Detail

visitLineNumber

public void visitLineNumber(int lineNumber,
                            org.objectweb.asm.Label label)

This is the method that actually adds the instructions to the enhanced class. It adds an instruction to call a collector class which then collects the data about each line being called. This method puts five strings onto the stack. These are then popped by the call to the collector class and passed as parameters to the collector method.

Specified by:

visitLineNumber in interface org.objectweb.asm.MethodVisitor

Overrides:

visitLineNumber in class org.objectweb.asm.MethodAdapter