proguard.optimize.peephole

Class VariableShrinker

java.lang.Object

proguard.optimize.peephole.VariableShrinker

All Implemented Interfaces:

proguard.classfile.attribute.visitor.AttributeVisitor

public class VariableShrinker
extends java.lang.Object
implements proguard.classfile.attribute.visitor.AttributeVisitor

This MemberVisitor removes unused local variables from the code of the methods that it visits.

See Also:

ParameterUsageMarker, MethodStaticizer, MethodDescriptorShrinker

Constructor Summary

Constructors

Constructor and Description
VariableShrinker() Creates a new VariableShrinker.
VariableShrinker(proguard.classfile.visitor.MemberVisitor extraVariableMemberVisitor) Creates a new VariableShrinker with an extra visitor.

Method Summary

Modifier and Type	Method and Description
void	visitAnyAttribute(proguard.classfile.Clazz clazz, proguard.classfile.attribute.Attribute attribute)
void	visitCodeAttribute(proguard.classfile.Clazz clazz, proguard.classfile.Method method, proguard.classfile.attribute.CodeAttribute codeAttribute)

Methods inherited from class java.lang.Object

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

Methods inherited from interface proguard.classfile.attribute.visitor.AttributeVisitor

visitAnnotationDefaultAttribute, visitAnyAnnotationsAttribute, visitAnyParameterAnnotationsAttribute, visitAnyTypeAnnotationsAttribute, visitBootstrapMethodsAttribute, visitConstantValueAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitEnclosingMethodAttribute, visitExceptionsAttribute, visitInnerClassesAttribute, visitLineNumberTableAttribute, visitLocalVariableTableAttribute, visitLocalVariableTypeTableAttribute, visitMethodParametersAttribute, visitModuleAttribute, visitModuleMainClassAttribute, visitModulePackagesAttribute, visitNestHostAttribute, visitNestMembersAttribute, visitPermittedSubclassesAttribute, visitRecordAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleParameterAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleParameterAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSourceDebugExtensionAttribute, visitSourceDirAttribute, visitSourceFileAttribute, visitStackMapAttribute, visitStackMapTableAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitUnknownAttribute

Constructor Detail

VariableShrinker

public VariableShrinker()

Creates a new VariableShrinker.

VariableShrinker

public VariableShrinker(proguard.classfile.visitor.MemberVisitor extraVariableMemberVisitor)

Creates a new VariableShrinker with an extra visitor.

Parameters:

extraVariableMemberVisitor - an optional extra visitor for all removed variables.

Method Detail

visitAnyAttribute

public void visitAnyAttribute(proguard.classfile.Clazz clazz,
                              proguard.classfile.attribute.Attribute attribute)

Specified by:

visitAnyAttribute in interface proguard.classfile.attribute.visitor.AttributeVisitor

visitCodeAttribute

public void visitCodeAttribute(proguard.classfile.Clazz clazz,
                               proguard.classfile.Method method,
                               proguard.classfile.attribute.CodeAttribute codeAttribute)

Specified by:

visitCodeAttribute in interface proguard.classfile.attribute.visitor.AttributeVisitor