proguard.optimize
Class SideEffectInstructionChecker

java.lang.Object
  proguard.optimize.SideEffectInstructionChecker

All Implemented Interfaces:

CpInfoVisitor, InstructionVisitor, MemberInfoVisitor

public class SideEffectInstructionChecker

extends Object

implements InstructionVisitor, CpInfoVisitor, MemberInfoVisitor

This class can tell whether an instruction has any side effects. Return instructions can be included or not.

See Also:

WriteOnlyFieldMarker, NoSideEffectMethodMarker, SideEffectMethodMarker

Constructor Summary

SideEffectInstructionChecker(boolean includeReturnInstructions)

Method Summary

boolean	hasSideEffects(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, Instruction instruction)
void	visitBranchInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, BranchInstruction branchInstruction)
void	visitClassCpInfo(ClassFile classFile, ClassCpInfo classCpInfo)
void	visitCpInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, CpInstruction cpInstruction)
void	visitDoubleCpInfo(ClassFile classFile, DoubleCpInfo doubleCpInfo)
void	visitFieldrefCpInfo(ClassFile classFile, FieldrefCpInfo fieldrefCpInfo)
void	visitFloatCpInfo(ClassFile classFile, FloatCpInfo floatCpInfo)
void	visitIntegerCpInfo(ClassFile classFile, IntegerCpInfo integerCpInfo)
void	visitInterfaceMethodrefCpInfo(ClassFile classFile, InterfaceMethodrefCpInfo interfaceMethodrefCpInfo)
void	visitLibraryFieldInfo(LibraryClassFile libraryClassFile, LibraryFieldInfo libraryFieldInfo)
void	visitLibraryMethodInfo(LibraryClassFile libraryClassFile, LibraryMethodInfo libraryMethodInfo)
void	visitLongCpInfo(ClassFile classFile, LongCpInfo longCpInfo)
void	visitLookUpSwitchInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, LookUpSwitchInstruction lookUpSwitchInstruction)
void	visitMethodrefCpInfo(ClassFile classFile, MethodrefCpInfo methodrefCpInfo)
void	visitNameAndTypeCpInfo(ClassFile classFile, NameAndTypeCpInfo nameAndTypeCpInfo)
void	visitProgramFieldInfo(ProgramClassFile programClassFile, ProgramFieldInfo programFieldInfo)
void	visitProgramMethodInfo(ProgramClassFile programClassFile, ProgramMethodInfo programMethodInfo)
void	visitSimpleInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, SimpleInstruction simpleInstruction)
void	visitStringCpInfo(ClassFile classFile, StringCpInfo stringCpInfo)
void	visitTableSwitchInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, TableSwitchInstruction tableSwitchInstruction)
void	visitUtf8CpInfo(ClassFile classFile, Utf8CpInfo utf8CpInfo)
void	visitVariableInstruction(ClassFile classFile, MethodInfo methodInfo, CodeAttrInfo codeAttrInfo, int offset, VariableInstruction variableInstruction)

Methods inherited from class java.lang.Object

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

Constructor Detail

SideEffectInstructionChecker

public SideEffectInstructionChecker(boolean includeReturnInstructions)

Method Detail

hasSideEffects

public boolean hasSideEffects(ClassFile classFile,
                              MethodInfo methodInfo,
                              CodeAttrInfo codeAttrInfo,
                              int offset,
                              Instruction instruction)

visitBranchInstruction

public void visitBranchInstruction(ClassFile classFile,
                                   MethodInfo methodInfo,
                                   CodeAttrInfo codeAttrInfo,
                                   int offset,
                                   BranchInstruction branchInstruction)

Specified by:

visitBranchInstruction in interface InstructionVisitor

visitTableSwitchInstruction

public void visitTableSwitchInstruction(ClassFile classFile,
                                        MethodInfo methodInfo,
                                        CodeAttrInfo codeAttrInfo,
                                        int offset,
                                        TableSwitchInstruction tableSwitchInstruction)

Specified by:

visitTableSwitchInstruction in interface InstructionVisitor

visitLookUpSwitchInstruction

public void visitLookUpSwitchInstruction(ClassFile classFile,
                                         MethodInfo methodInfo,
                                         CodeAttrInfo codeAttrInfo,
                                         int offset,
                                         LookUpSwitchInstruction lookUpSwitchInstruction)

Specified by:

visitLookUpSwitchInstruction in interface InstructionVisitor

visitSimpleInstruction

public void visitSimpleInstruction(ClassFile classFile,
                                   MethodInfo methodInfo,
                                   CodeAttrInfo codeAttrInfo,
                                   int offset,
                                   SimpleInstruction simpleInstruction)

Specified by:

visitSimpleInstruction in interface InstructionVisitor

visitVariableInstruction

public void visitVariableInstruction(ClassFile classFile,
                                     MethodInfo methodInfo,
                                     CodeAttrInfo codeAttrInfo,
                                     int offset,
                                     VariableInstruction variableInstruction)

Specified by:

visitVariableInstruction in interface InstructionVisitor

visitCpInstruction

public void visitCpInstruction(ClassFile classFile,
                               MethodInfo methodInfo,
                               CodeAttrInfo codeAttrInfo,
                               int offset,
                               CpInstruction cpInstruction)

Specified by:

visitCpInstruction in interface InstructionVisitor

visitIntegerCpInfo

public void visitIntegerCpInfo(ClassFile classFile,
                               IntegerCpInfo integerCpInfo)

Specified by:

visitIntegerCpInfo in interface CpInfoVisitor

visitLongCpInfo

public void visitLongCpInfo(ClassFile classFile,
                            LongCpInfo longCpInfo)

Specified by:

visitLongCpInfo in interface CpInfoVisitor

visitFloatCpInfo

public void visitFloatCpInfo(ClassFile classFile,
                             FloatCpInfo floatCpInfo)

Specified by:

visitFloatCpInfo in interface CpInfoVisitor

visitDoubleCpInfo

public void visitDoubleCpInfo(ClassFile classFile,
                              DoubleCpInfo doubleCpInfo)

Specified by:

visitDoubleCpInfo in interface CpInfoVisitor

visitStringCpInfo

public void visitStringCpInfo(ClassFile classFile,
                              StringCpInfo stringCpInfo)

Specified by:

visitStringCpInfo in interface CpInfoVisitor

visitUtf8CpInfo

public void visitUtf8CpInfo(ClassFile classFile,
                            Utf8CpInfo utf8CpInfo)

Specified by:

visitUtf8CpInfo in interface CpInfoVisitor

visitClassCpInfo

public void visitClassCpInfo(ClassFile classFile,
                             ClassCpInfo classCpInfo)

Specified by:

visitClassCpInfo in interface CpInfoVisitor

visitNameAndTypeCpInfo

public void visitNameAndTypeCpInfo(ClassFile classFile,
                                   NameAndTypeCpInfo nameAndTypeCpInfo)

Specified by:

visitNameAndTypeCpInfo in interface CpInfoVisitor

visitFieldrefCpInfo

public void visitFieldrefCpInfo(ClassFile classFile,
                                FieldrefCpInfo fieldrefCpInfo)

Specified by:

visitFieldrefCpInfo in interface CpInfoVisitor

visitInterfaceMethodrefCpInfo

public void visitInterfaceMethodrefCpInfo(ClassFile classFile,
                                          InterfaceMethodrefCpInfo interfaceMethodrefCpInfo)

Specified by:

visitInterfaceMethodrefCpInfo in interface CpInfoVisitor

visitMethodrefCpInfo

public void visitMethodrefCpInfo(ClassFile classFile,
                                 MethodrefCpInfo methodrefCpInfo)

Specified by:

visitMethodrefCpInfo in interface CpInfoVisitor

visitProgramFieldInfo

public void visitProgramFieldInfo(ProgramClassFile programClassFile,
                                  ProgramFieldInfo programFieldInfo)

Specified by:

visitProgramFieldInfo in interface MemberInfoVisitor

visitProgramMethodInfo

public void visitProgramMethodInfo(ProgramClassFile programClassFile,
                                   ProgramMethodInfo programMethodInfo)

Specified by:

visitProgramMethodInfo in interface MemberInfoVisitor

visitLibraryFieldInfo

public void visitLibraryFieldInfo(LibraryClassFile libraryClassFile,
                                  LibraryFieldInfo libraryFieldInfo)

Specified by:

visitLibraryFieldInfo in interface MemberInfoVisitor

visitLibraryMethodInfo

public void visitLibraryMethodInfo(LibraryClassFile libraryClassFile,
                                   LibraryMethodInfo libraryMethodInfo)

Specified by:

visitLibraryMethodInfo in interface MemberInfoVisitor