proguard.optimize

Class TailRecursionSimplifier

java.lang.Object

proguard.classfile.util.SimplifiedVisitor

proguard.optimize.TailRecursionSimplifier

All Implemented Interfaces:

AttributeVisitor, ExceptionInfoVisitor, ConstantVisitor, InstructionVisitor

public class TailRecursionSimplifier
extends SimplifiedVisitor
implements AttributeVisitor, InstructionVisitor, ConstantVisitor, ExceptionInfoVisitor

This MemberVisitor simplifies tail recursion calls in all methods that it visits.

Author:

Eric Lafortune

Constructor Summary

Constructors

Constructor and Description
TailRecursionSimplifier() Creates a new TailRecursionSimplifier.
TailRecursionSimplifier(InstructionVisitor extraTailRecursionVisitor) Creates a new TailRecursionSimplifier 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	visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction) Visits any type of Instruction.
void	visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
void	visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
void	visitExceptionInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo)

Methods inherited from class proguard.classfile.util.SimplifiedVisitor

visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotation, visitAnnotationDefaultAttribute, visitAnnotationElementValue, visitAnyAnnotationsAttribute, visitAnyClass, visitAnyConstant, visitAnyElementValue, visitAnyMember, visitAnyMethodrefConstant, visitAnyParameterAnnotationsAttribute, visitAnyRefConstant, visitAnyStackMapFrame, visitAnySwitchInstruction, visitAnyTargetInfo, visitAnyTypeAnnotationsAttribute, visitAnyVerificationType, visitArrayElementValue, visitBootstrapMethodsAttribute, visitBranchInstruction, visitCatchTargetInfo, visitClassConstant, visitClassElementValue, visitConstantElementValue, 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, visitProgramMethod, 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, 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.attribute.visitor.AttributeVisitor

visitAnnotationDefaultAttribute, visitBootstrapMethodsAttribute, 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, visitSignatureAttribute, visitSourceDirAttribute, visitSourceFileAttribute, visitStackMapAttribute, visitStackMapTableAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitUnknownAttribute

Methods inherited from interface proguard.classfile.instruction.visitor.InstructionVisitor

visitBranchInstruction, visitLookUpSwitchInstruction, visitSimpleInstruction, visitTableSwitchInstruction, visitVariableInstruction

Methods inherited from interface proguard.classfile.constant.visitor.ConstantVisitor

visitClassConstant, visitDoubleConstant, visitFieldrefConstant, visitFloatConstant, visitIntegerConstant, visitInterfaceMethodrefConstant, visitInvokeDynamicConstant, visitLongConstant, visitMethodHandleConstant, visitMethodrefConstant, visitMethodTypeConstant, visitNameAndTypeConstant, visitStringConstant, visitUtf8Constant

Constructor Detail

TailRecursionSimplifier

public TailRecursionSimplifier()

Creates a new TailRecursionSimplifier.

TailRecursionSimplifier

public TailRecursionSimplifier(InstructionVisitor extraTailRecursionVisitor)

Creates a new TailRecursionSimplifier with an extra visitor.

Parameters:

extraTailRecursionVisitor - an optional extra visitor for all simplified tail recursions.

Method Detail

visitAnyAttribute

public void visitAnyAttribute(Clazz clazz,
                     Attribute attribute)

Description copied from class: SimplifiedVisitor

Visit any type of attribute.

Overrides:

visitAnyAttribute in class SimplifiedVisitor

visitCodeAttribute

public void visitCodeAttribute(Clazz clazz,
                      Method method,
                      CodeAttribute codeAttribute)

Specified by:

visitCodeAttribute in interface AttributeVisitor

Overrides:

visitCodeAttribute in class SimplifiedVisitor

visitAnyInstruction

public void visitAnyInstruction(Clazz clazz,
                       Method method,
                       CodeAttribute codeAttribute,
                       int offset,
                       Instruction instruction)

Description copied from class: SimplifiedVisitor

Visits any type of Instruction.

Overrides:

visitAnyInstruction in class SimplifiedVisitor

visitConstantInstruction

public void visitConstantInstruction(Clazz clazz,
                            Method method,
                            CodeAttribute codeAttribute,
                            int offset,
                            ConstantInstruction constantInstruction)

Specified by:

visitConstantInstruction in interface InstructionVisitor

Overrides:

visitConstantInstruction in class SimplifiedVisitor

visitExceptionInfo

public void visitExceptionInfo(Clazz clazz,
                      Method method,
                      CodeAttribute codeAttribute,
                      ExceptionInfo exceptionInfo)

Specified by:

visitExceptionInfo in interface ExceptionInfoVisitor