proguard.optimize

Class MethodDescriptorShrinker

java.lang.Object

proguard.classfile.util.SimplifiedVisitor

proguard.optimize.MethodDescriptorShrinker

All Implemented Interfaces:

AttributeVisitor, MemberVisitor

public class MethodDescriptorShrinker
extends SimplifiedVisitor
implements MemberVisitor, AttributeVisitor

This MemberVisitor removes unused parameters in the descriptors of the methods that it visits.

Author:

Eric Lafortune

See Also:

ParameterUsageMarker, VariableUsageMarker, VariableShrinker

Constructor Summary

Constructors

Constructor and Description
MethodDescriptorShrinker() Creates a new MethodDescriptorShrinker.
MethodDescriptorShrinker(MemberVisitor extraMemberVisitor) Creates a new MethodDescriptorShrinker with an extra visitor.

Method Summary

Methods

Modifier and Type	Method and Description
void	visitAnyAttribute(Clazz clazz, Attribute attribute) Visit any type of attribute.
void	visitAnyParameterAnnotationsAttribute(Clazz clazz, Method method, ParameterAnnotationsAttribute parameterAnnotationsAttribute) Visits any type of ParameterAnnotationsAttribute.
void	visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)
void	visitSignatureAttribute(Clazz clazz, Method method, SignatureAttribute signatureAttribute)

Methods inherited from class proguard.classfile.util.SimplifiedVisitor

visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotationDefaultAttribute, visitAnnotationElementValue, visitAnyAnnotationsAttribute, visitAnyClass, visitAnyConstant, visitAnyElementValue, visitAnyInstruction, visitAnyMember, visitAnyMethodrefConstant, visitAnyRefConstant, visitAnyStackMapFrame, visitAnySwitchInstruction, visitAnyTargetInfo, visitAnyTypeAnnotationsAttribute, visitAnyVerificationType, visitArrayElementValue, visitBootstrapMethodsAttribute, visitBranchInstruction, visitCatchTargetInfo, visitClassConstant, visitClassElementValue, visitCodeAttribute, visitConstantElementValue, visitConstantInstruction, visitConstantValueAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDoubleConstant, visitDoubleType, visitEmptyTargetInfo, visitEmptyTargetInfo, visitEmptyTargetInfo, visitEnclosingMethodAttribute, visitEnumConstantElementValue, visitExceptionsAttribute, visitFieldrefConstant, visitFloatConstant, visitFloatType, visitFormalParameterTargetInfo, visitFullFrame, visitInnerClassesAttribute, visitIntegerConstant, visitIntegerType, visitInterfaceMethodrefConstant, visitInvokeDynamicConstant, visitLessZeroFrame, visitLibraryClass, visitLibraryField, visitLibraryMember, visitLibraryMethod, visitLineNumberTableAttribute, visitLocalVariableTableAttribute, visitLocalVariableTargetInfo, visitLocalVariableTypeTableAttribute, visitLongConstant, visitLongType, visitLookUpSwitchInstruction, visitMethodHandleConstant, visitMethodParametersAttribute, visitMethodrefConstant, visitMethodTypeConstant, visitMoreZeroFrame, visitNameAndTypeConstant, visitNullType, visitObjectType, visitOffsetTargetInfo, visitProgramClass, visitProgramField, visitProgramMember, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleParameterAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleParameterAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitSameOneFrame, visitSameZeroFrame, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSimpleInstruction, visitSourceDirAttribute, visitSourceFileAttribute, visitStackDoubleType, visitStackFloatType, visitStackIntegerType, visitStackLongType, visitStackMapAttribute, visitStackMapTableAttribute, visitStackNullType, visitStackObjectType, visitStackTopType, visitStackUninitializedThisType, visitStackUninitializedType, visitStringConstant, visitSuperTypeTargetInfo, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitTableSwitchInstruction, visitThrowsTargetInfo, visitTopType, visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation, visitTypeArgumentTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterTargetInfo, visitTypeParameterTargetInfo, visitTypePathInfo, visitTypePathInfo, visitTypePathInfo, visitTypePathInfo, visitTypePathInfo, visitUninitializedThisType, visitUninitializedType, visitUnknownAttribute, visitUtf8Constant, visitVariableInstruction, visitVariablesDoubleType, visitVariablesFloatType, visitVariablesIntegerType, visitVariablesLongType, visitVariablesNullType, visitVariablesObjectType, visitVariablesTopType, visitVariablesUninitializedThisType, visitVariablesUninitializedType

Methods inherited from class java.lang.Object

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

Methods inherited from interface proguard.classfile.visitor.MemberVisitor

visitLibraryField, visitLibraryMethod, visitProgramField

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

visitAnnotationDefaultAttribute, visitBootstrapMethodsAttribute, visitCodeAttribute, visitConstantValueAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitEnclosingMethodAttribute, visitExceptionsAttribute, visitInnerClassesAttribute, visitLineNumberTableAttribute, visitLocalVariableTableAttribute, visitLocalVariableTypeTableAttribute, visitMethodParametersAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleParameterAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleParameterAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSourceDirAttribute, visitSourceFileAttribute, visitStackMapAttribute, visitStackMapTableAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitUnknownAttribute

Constructor Detail

MethodDescriptorShrinker

public MethodDescriptorShrinker()

Creates a new MethodDescriptorShrinker.

MethodDescriptorShrinker

public MethodDescriptorShrinker(MemberVisitor extraMemberVisitor)

Creates a new MethodDescriptorShrinker with an extra visitor.

Parameters:

extraMemberVisitor - an optional extra visitor for all methods whose parameters have been simplified.

Method Detail

visitProgramMethod

public void visitProgramMethod(ProgramClass programClass,
                      ProgramMethod programMethod)

Specified by:

visitProgramMethod in interface MemberVisitor

Overrides:

visitProgramMethod in class SimplifiedVisitor

visitAnyAttribute

public void visitAnyAttribute(Clazz clazz,
                     Attribute attribute)

Description copied from class: SimplifiedVisitor

Visit any type of attribute.

Overrides:

visitAnyAttribute in class SimplifiedVisitor

visitSignatureAttribute

public void visitSignatureAttribute(Clazz clazz,
                           Method method,
                           SignatureAttribute signatureAttribute)

Specified by:

visitSignatureAttribute in interface AttributeVisitor

Overrides:

visitSignatureAttribute in class SimplifiedVisitor

visitAnyParameterAnnotationsAttribute

public void visitAnyParameterAnnotationsAttribute(Clazz clazz,
                                         Method method,
                                         ParameterAnnotationsAttribute parameterAnnotationsAttribute)

Description copied from class: SimplifiedVisitor

Visits any type of ParameterAnnotationsAttribute.

Overrides:

visitAnyParameterAnnotationsAttribute in class SimplifiedVisitor