proguard.optimize

Class MemberReferenceGeneralizer

java.lang.Object

proguard.optimize.MemberReferenceGeneralizer

All Implemented Interfaces:

proguard.classfile.constant.visitor.ConstantVisitor, proguard.classfile.instruction.visitor.InstructionVisitor, proguard.classfile.visitor.ClassVisitor

public class MemberReferenceGeneralizer
extends java.lang.Object
implements proguard.classfile.instruction.visitor.InstructionVisitor, proguard.classfile.constant.visitor.ConstantVisitor, proguard.classfile.visitor.ClassVisitor

This InstructionVisitor generalizes the classes referenced by the field/method invocation instructions that it visits. For example, it replaces invocations StringBuilder#toString() by Object#toString(), Integer#intValue() by Number#intValue(), Exception#printStackTrace() by Throwable#printStackTrace().

Constructor Summary

Constructors

Constructor and Description
MemberReferenceGeneralizer(boolean fieldGeneralizationClass, boolean methodGeneralizationClass, proguard.classfile.editor.CodeAttributeEditor codeAttributeEditor) Creates a new ReferenceGeneralizer.
MemberReferenceGeneralizer(boolean fieldGeneralizationClass, boolean methodGeneralizationClass, proguard.classfile.editor.CodeAttributeEditor codeAttributeEditor, proguard.classfile.instruction.visitor.InstructionVisitor extraFieldInstructionVisitor, proguard.classfile.instruction.visitor.InstructionVisitor extraMethodInstructionVisitor) Creates a new ReferenceGeneralizer.

Method Summary

Modifier and Type	Method and Description
void	visitAnyClass(proguard.classfile.Clazz clazz)
void	visitAnyInstruction(proguard.classfile.Clazz clazz, proguard.classfile.Method method, proguard.classfile.attribute.CodeAttribute codeAttribute, int offset, proguard.classfile.instruction.Instruction instruction)
void	visitAnyRefConstant(proguard.classfile.Clazz clazz, proguard.classfile.constant.RefConstant refConstant)
void	visitClassConstant(proguard.classfile.Clazz clazz, proguard.classfile.constant.ClassConstant classConstant)
void	visitConstantInstruction(proguard.classfile.Clazz clazz, proguard.classfile.Method method, proguard.classfile.attribute.CodeAttribute codeAttribute, int offset, proguard.classfile.instruction.ConstantInstruction constantInstruction)

Methods inherited from class java.lang.Object

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

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

visitAnySwitchInstruction, visitBranchInstruction, visitLookUpSwitchInstruction, visitSimpleInstruction, visitTableSwitchInstruction, visitVariableInstruction

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

visitAnyConstant, visitAnyMethodrefConstant, visitDoubleConstant, visitDynamicConstant, visitFieldrefConstant, visitFloatConstant, visitIntegerConstant, visitInterfaceMethodrefConstant, visitInvokeDynamicConstant, visitLongConstant, visitMethodHandleConstant, visitMethodrefConstant, visitMethodTypeConstant, visitModuleConstant, visitNameAndTypeConstant, visitPackageConstant, visitPrimitiveArrayConstant, visitStringConstant, visitUtf8Constant

Methods inherited from interface proguard.classfile.visitor.ClassVisitor

visitLibraryClass, visitProgramClass

Constructor Detail

MemberReferenceGeneralizer

public MemberReferenceGeneralizer(boolean fieldGeneralizationClass,
                                  boolean methodGeneralizationClass,
                                  proguard.classfile.editor.CodeAttributeEditor codeAttributeEditor)

Creates a new ReferenceGeneralizer.

Parameters:

fieldGeneralizationClass - specifies whether field classes should be generalized.

methodGeneralizationClass - specifies whether method classes should be generalized.

codeAttributeEditor - a code editor that can be used to accumulate changes to the code.

MemberReferenceGeneralizer

public MemberReferenceGeneralizer(boolean fieldGeneralizationClass,
                                  boolean methodGeneralizationClass,
                                  proguard.classfile.editor.CodeAttributeEditor codeAttributeEditor,
                                  proguard.classfile.instruction.visitor.InstructionVisitor extraFieldInstructionVisitor,
                                  proguard.classfile.instruction.visitor.InstructionVisitor extraMethodInstructionVisitor)

Creates a new ReferenceGeneralizer.

Parameters:

fieldGeneralizationClass - specifies whether field classes should be generalized.

methodGeneralizationClass - specifies whether method classes should be generalized.

codeAttributeEditor - a code editor that can be used to accumulate changes to the code.

extraFieldInstructionVisitor - an extra visitor for all field access instructions whose referenced classes have been generalized.

extraMethodInstructionVisitor - an extra visitor for all method invocations instructions whose referenced classes have been generalized.

Method Detail

visitAnyInstruction

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

Specified by:

visitAnyInstruction in interface proguard.classfile.instruction.visitor.InstructionVisitor

visitConstantInstruction

public void visitConstantInstruction(proguard.classfile.Clazz clazz,
                                     proguard.classfile.Method method,
                                     proguard.classfile.attribute.CodeAttribute codeAttribute,
                                     int offset,
                                     proguard.classfile.instruction.ConstantInstruction constantInstruction)

Specified by:

visitConstantInstruction in interface proguard.classfile.instruction.visitor.InstructionVisitor

visitAnyRefConstant

public void visitAnyRefConstant(proguard.classfile.Clazz clazz,
                                proguard.classfile.constant.RefConstant refConstant)

Specified by:

visitAnyRefConstant in interface proguard.classfile.constant.visitor.ConstantVisitor

visitClassConstant

public void visitClassConstant(proguard.classfile.Clazz clazz,
                               proguard.classfile.constant.ClassConstant classConstant)

Specified by:

visitClassConstant in interface proguard.classfile.constant.visitor.ConstantVisitor

visitAnyClass

public void visitAnyClass(proguard.classfile.Clazz clazz)

Specified by:

visitAnyClass in interface proguard.classfile.visitor.ClassVisitor