程序包 proguard.classfile.util

类 InstructionSequenceMatcher

java.lang.Object

proguard.classfile.util.InstructionSequenceMatcher

所有已实现的接口:

ConstantVisitor, InstructionVisitor

public class InstructionSequenceMatcher
extends Object
implements InstructionVisitor, ConstantVisitor

This InstructionVisitor checks whether a given pattern instruction sequence occurs in the instructions that are visited. The arguments of the instruction sequence can be wildcards that are matched.

字段概要

字段

修饰符和类型	字段	说明
static final int	A
static final int	B
static final int	C
static final int	D
static final int	E
static final int	F
static final int	G
static final int	H
static final int	I
static final int	J
static final int	K
static final int	L
static final int	M
protected boolean	matchingConstant
static final int	N
static final int	O
static final int	P
protected Constant	patternConstant
protected final Constant[]	patternConstants
protected final Instruction[]	patternInstructions
static final int	Q
static final int	R
static final int	X
static final int	Y
static final int	Z

构造器概要

构造器

构造器	说明
InstructionSequenceMatcher(Constant[] patternConstants, Instruction[] patternInstructions)	Creates a new InstructionSequenceMatcher.
InstructionSequenceMatcher(Constant[] patternConstants, Instruction[] patternInstructions, boolean matchSubclasses)	Creates a new InstructionSequenceMatcher.

方法概要

修饰符和类型	方法	说明
protected boolean	finalMatch(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction)	Performs a final check on the candidate sequence to match, after the pattern has been successfully fully matched with the sequence.
int	instructionCount()	Returns the number of instructions in the pattern sequence.
boolean	isMatching()	Returns whether the complete pattern sequence has been matched.
static void	main(String[] args)	Small sample application that illustrates the use of this class.
int	matchedArgument(int argument)	Returns the value of the specified matched argument (wildcard or not).
int[]	matchedArguments(int[] arguments)	Returns the values of the specified matched arguments (wildcard or not).
int	matchedBranchOffset(int offset, int branchOffset)	Returns the value of the specified matched branch offset (wildcard or not).
int	matchedConstantIndex(int constantIndex)	Returns the index of the specified matched constant (wildcard or not).
int	matchedInstructionOffset(int index)	Returns the matched instruction offset of the specified pattern instruction.
int[]	matchedJumpOffsets(int offset, int[] jumpOffsets)	Returns the values of the specified matched jump offsets (wildcard or not).
protected boolean	matchingArguments(int[] arguments1, int[] arguments2)
protected boolean	matchingArguments(int argument1, int argument2)
protected boolean	matchingBranchOffsets(int offset, int branchOffset1, int branchOffset2)
protected boolean	matchingConstantIndices(Clazz clazz, int constantIndex1, int constantIndex2)
protected boolean	matchingJumpOffsets(int offset, int[] jumpOffsets1, int[] jumpOffsets2)
protected boolean	matchingOpcodes(Instruction instruction1, Instruction instruction2)
void	reset()	Starts matching from the first instruction again next time.
void	visitAnyRefConstant(Clazz clazz, RefConstant refConstant)	Visits any RefConstant instance.
void	visitBranchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, BranchInstruction branchInstruction)
void	visitClassConstant(Clazz clazz, ClassConstant classConstant)
void	visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)
void	visitDoubleConstant(Clazz clazz, DoubleConstant doubleConstant)
void	visitDynamicConstant(Clazz clazz, DynamicConstant dynamicConstant)
void	visitFloatConstant(Clazz clazz, FloatConstant floatConstant)
void	visitIntegerConstant(Clazz clazz, IntegerConstant integerConstant)
void	visitInvokeDynamicConstant(Clazz clazz, InvokeDynamicConstant invokeDynamicConstant)
void	visitLongConstant(Clazz clazz, LongConstant longConstant)
void	visitLookUpSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, LookUpSwitchInstruction lookUpSwitchInstruction)
void	visitMethodHandleConstant(Clazz clazz, MethodHandleConstant methodHandleConstant)
void	visitMethodTypeConstant(Clazz clazz, MethodTypeConstant methodTypeConstant)
void	visitNameAndTypeConstant(Clazz clazz, NameAndTypeConstant nameAndTypeConstant)
void	visitPrimitiveArrayConstant(Clazz clazz, PrimitiveArrayConstant primitiveArrayConstant)
void	visitSimpleInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SimpleInstruction simpleInstruction)
void	visitStringConstant(Clazz clazz, StringConstant stringConstant)
void	visitTableSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, TableSwitchInstruction tableSwitchInstruction)
void	visitUtf8Constant(Clazz clazz, Utf8Constant utf8Constant)
void	visitVariableInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VariableInstruction variableInstruction)
boolean	wasConstant(int argument)	Returns whether the specified wildcard argument was a constant from the constant pool in the most recent match.

从类继承的方法 java.lang.Object

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

从接口继承的方法 proguard.classfile.constant.visitor.ConstantVisitor

visitAnyConstant, visitAnyMethodrefConstant, visitFieldrefConstant, visitInterfaceMethodrefConstant, visitMethodrefConstant, visitModuleConstant, visitPackageConstant

从接口继承的方法 proguard.classfile.instruction.visitor.InstructionVisitor

visitAnyInstruction, visitAnySwitchInstruction

字段详细资料

X

public static final int X

另请参阅:

• 常量字段值

Y

public static final int Y

另请参阅:

• 常量字段值

Z

public static final int Z

另请参阅:

• 常量字段值

A

public static final int A

另请参阅:

• 常量字段值

B

public static final int B

另请参阅:

• 常量字段值

C

public static final int C

另请参阅:

• 常量字段值

D

public static final int D

另请参阅:

• 常量字段值

E

public static final int E

另请参阅:

• 常量字段值

F

public static final int F

另请参阅:

• 常量字段值

G

public static final int G

另请参阅:

• 常量字段值

H

public static final int H

另请参阅:

• 常量字段值

I

public static final int I

另请参阅:

• 常量字段值

J

public static final int J

另请参阅:

• 常量字段值

K

public static final int K

另请参阅:

• 常量字段值

L

public static final int L

另请参阅:

• 常量字段值

M

public static final int M

另请参阅:

• 常量字段值

N

public static final int N

另请参阅:

• 常量字段值

O

public static final int O

另请参阅:

• 常量字段值

P

public static final int P

另请参阅:

• 常量字段值

Q

public static final int Q

另请参阅:

• 常量字段值

R

public static final int R

另请参阅:

• 常量字段值

patternConstants

protected final Constant[] patternConstants

patternInstructions

protected final Instruction[] patternInstructions

patternConstant

protected Constant patternConstant

matchingConstant

protected boolean matchingConstant

构造器详细资料

InstructionSequenceMatcher

public InstructionSequenceMatcher(Constant[] patternConstants,
 Instruction[] patternInstructions)

Creates a new InstructionSequenceMatcher.

参数:

patternConstants - any constants referenced by the pattern instruction.

patternInstructions - the pattern instruction sequence.

InstructionSequenceMatcher

public InstructionSequenceMatcher(Constant[] patternConstants,
 Instruction[] patternInstructions,
 boolean matchSubclasses)

Creates a new InstructionSequenceMatcher.

参数:

patternConstants - any constants referenced by the pattern instruction.

patternInstructions - the pattern instruction sequence.

matchSubclasses - whether constant references on subclasses are matching when the pattern contains a constant of a superclass. (default: false)

方法详细资料

reset

public void reset()

Starts matching from the first instruction again next time.

isMatching

public boolean isMatching()

Returns whether the complete pattern sequence has been matched.

instructionCount

public int instructionCount()

Returns the number of instructions in the pattern sequence.

matchedInstructionOffset

public int matchedInstructionOffset(int index)

Returns the matched instruction offset of the specified pattern instruction.

wasConstant

public boolean wasConstant(int argument)

Returns whether the specified wildcard argument was a constant from the constant pool in the most recent match.

matchedArgument

public int matchedArgument(int argument)

Returns the value of the specified matched argument (wildcard or not).

matchedArguments

public int[] matchedArguments(int[] arguments)

Returns the values of the specified matched arguments (wildcard or not).

matchedConstantIndex

public int matchedConstantIndex(int constantIndex)

Returns the index of the specified matched constant (wildcard or not).

matchedBranchOffset

public int matchedBranchOffset(int offset,
 int branchOffset)

Returns the value of the specified matched branch offset (wildcard or not).

matchedJumpOffsets

public int[] matchedJumpOffsets(int offset,
 int[] jumpOffsets)

Returns the values of the specified matched jump offsets (wildcard or not).

visitSimpleInstruction

public void visitSimpleInstruction(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 SimpleInstruction simpleInstruction)

指定者:

visitSimpleInstruction 在接口中 InstructionVisitor

visitVariableInstruction

public void visitVariableInstruction(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 VariableInstruction variableInstruction)

指定者:

visitVariableInstruction 在接口中 InstructionVisitor

visitConstantInstruction

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

指定者:

visitConstantInstruction 在接口中 InstructionVisitor

visitBranchInstruction

public void visitBranchInstruction(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 BranchInstruction branchInstruction)

指定者:

visitBranchInstruction 在接口中 InstructionVisitor

visitTableSwitchInstruction

public void visitTableSwitchInstruction(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 TableSwitchInstruction tableSwitchInstruction)

指定者:

visitTableSwitchInstruction 在接口中 InstructionVisitor

visitLookUpSwitchInstruction

public void visitLookUpSwitchInstruction(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 LookUpSwitchInstruction lookUpSwitchInstruction)

指定者:

visitLookUpSwitchInstruction 在接口中 InstructionVisitor

visitIntegerConstant

public void visitIntegerConstant(Clazz clazz,
 IntegerConstant integerConstant)

指定者:

visitIntegerConstant 在接口中 ConstantVisitor

visitLongConstant

public void visitLongConstant(Clazz clazz,
 LongConstant longConstant)

指定者:

visitLongConstant 在接口中 ConstantVisitor

visitFloatConstant

public void visitFloatConstant(Clazz clazz,
 FloatConstant floatConstant)

指定者:

visitFloatConstant 在接口中 ConstantVisitor

visitDoubleConstant

public void visitDoubleConstant(Clazz clazz,
 DoubleConstant doubleConstant)

指定者:

visitDoubleConstant 在接口中 ConstantVisitor

visitPrimitiveArrayConstant

public void visitPrimitiveArrayConstant(Clazz clazz,
 PrimitiveArrayConstant primitiveArrayConstant)

指定者:

visitPrimitiveArrayConstant 在接口中 ConstantVisitor

visitStringConstant

public void visitStringConstant(Clazz clazz,
 StringConstant stringConstant)

指定者:

visitStringConstant 在接口中 ConstantVisitor

visitUtf8Constant

public void visitUtf8Constant(Clazz clazz,
 Utf8Constant utf8Constant)

指定者:

visitUtf8Constant 在接口中 ConstantVisitor

visitDynamicConstant

public void visitDynamicConstant(Clazz clazz,
 DynamicConstant dynamicConstant)

指定者:

visitDynamicConstant 在接口中 ConstantVisitor

visitInvokeDynamicConstant

public void visitInvokeDynamicConstant(Clazz clazz,
 InvokeDynamicConstant invokeDynamicConstant)

指定者:

visitInvokeDynamicConstant 在接口中 ConstantVisitor

visitMethodHandleConstant

public void visitMethodHandleConstant(Clazz clazz,
 MethodHandleConstant methodHandleConstant)

指定者:

visitMethodHandleConstant 在接口中 ConstantVisitor

visitAnyRefConstant

public void visitAnyRefConstant(Clazz clazz,
 RefConstant refConstant)

从接口复制的说明: ConstantVisitor

Visits any RefConstant instance. The more specific default implementations of this interface delegate to this method.

指定者:

visitAnyRefConstant 在接口中 ConstantVisitor

visitClassConstant

public void visitClassConstant(Clazz clazz,
 ClassConstant classConstant)

指定者:

visitClassConstant 在接口中 ConstantVisitor

visitMethodTypeConstant

public void visitMethodTypeConstant(Clazz clazz,
 MethodTypeConstant methodTypeConstant)

指定者:

visitMethodTypeConstant 在接口中 ConstantVisitor

visitNameAndTypeConstant

public void visitNameAndTypeConstant(Clazz clazz,
 NameAndTypeConstant nameAndTypeConstant)

指定者:

visitNameAndTypeConstant 在接口中 ConstantVisitor

matchingOpcodes

protected boolean matchingOpcodes(Instruction instruction1,
 Instruction instruction2)

matchingArguments

protected boolean matchingArguments(int argument1,
 int argument2)

matchingArguments

protected boolean matchingArguments(int[] arguments1,
 int[] arguments2)

matchingConstantIndices

protected boolean matchingConstantIndices(Clazz clazz,
 int constantIndex1,
 int constantIndex2)

matchingBranchOffsets

protected boolean matchingBranchOffsets(int offset,
 int branchOffset1,
 int branchOffset2)

matchingJumpOffsets

protected boolean matchingJumpOffsets(int offset,
 int[] jumpOffsets1,
 int[] jumpOffsets2)

finalMatch

protected boolean finalMatch(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 Instruction instruction)

Performs a final check on the candidate sequence to match, after the pattern has been successfully fully matched with the sequence. Subclasses may override this method to implement additional constraints on the matched sequences.

main

public static void main(String[] args)

Small sample application that illustrates the use of this class.