proguard.classfile.editor

Class CodeAttributeComposer

java.lang.Object

proguard.classfile.editor.CodeAttributeComposer

All Implemented Interfaces:

LocalVariableTargetElementVisitor, TargetInfoVisitor, TypeAnnotationVisitor, StackMapFrameVisitor, VerificationTypeVisitor, AttributeVisitor, ExceptionInfoVisitor, LineNumberInfoVisitor, LocalVariableInfoVisitor, LocalVariableTypeInfoVisitor, InstructionVisitor

public class CodeAttributeComposer
extends java.lang.Object
implements AttributeVisitor, InstructionVisitor, ExceptionInfoVisitor, StackMapFrameVisitor, VerificationTypeVisitor, LineNumberInfoVisitor, LocalVariableInfoVisitor, LocalVariableTypeInfoVisitor, TypeAnnotationVisitor, TargetInfoVisitor, LocalVariableTargetElementVisitor

This AttributeVisitor accumulates instructions, exceptions and line numbers, and then adds them to a method or copies them into code attributes that it visits.

The class supports composing instructions (appendInstruction(Instruction)), labels (appendLabel(int)), exception handlers (appendException(ExceptionInfo)), and line numbers (appendLineNumber(LineNumberInfo)).

The labels are numeric labels that you can choose freely, for example instruction offsets from existing code that you are copying. You can then refer to them in branches and exception handlers. You can compose the code as a hierarchy of code fragments with their own local labels.

You should provide an estimated maximum size (expressed in number of bytes in the bytecode), so the implementation can efficiently allocate the necessary internal buffers without reallocating them as the code grows.

For example:

     ProgramClass  programClass  = ...
     ProgramMethod programMethod = ...

     // Create any constants for the code.
     ConstantPoolEditor constantPoolEditor =
         new ConstantPoolEditor(programClass);

     int exceptionType =
         constantPoolEditor.addClassConstant("java/lang/Exception", null);

     // Compose the code.
     CodeAttributeComposer composer =
         new CodeAttributeComposer();

     final int TRY_LABEL   =  0;
     final int IF_LABEL    =  1;
     final int THEN_LABEL  = 10;
     final int ELSE_LABEL  = 20;
     final int CATCH_LABEL = 30;

     composer.beginCodeFragment(50);
     composer.appendLabel(TRY_LABEL);
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_ICONST_1));
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_ICONST_2));
     composer.appendLabel(IF_LABEL);
     composer.appendInstruction(new BranchInstruction(Instruction.OP_IFICMPLT, ELSE_LABEL - IF_LABEL));

     composer.appendLabel(THEN_LABEL);
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_ICONST_1));
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_IRETURN));

     composer.appendLabel(ELSE_LABEL);
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_ICONST_2));
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_IRETURN));

     composer.appendLabel(CATCH_LABEL);
     composer.appendException(new ExceptionInfo(TRY_LABEL, CATCH_LABEL, CATCH_LABEL, exceptionType));
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_ICONST_M1));
     composer.appendInstruction(new SimpleInstruction(Instruction.OP_IRETURN));
     composer.endCodeFragment();

      // Add the code as a code attribute to the given method.
      composer.addCodeAttribute(programClass, programMethod, constantPoolEditor);
 

This class is mostly convenient to compose code based on existing code, where the instructions are already available. For a more compact and readable alternative to compose code programmatically from scratch, see CompactCodeAttributeComposer.

If you're building many method bodies, it is more efficient to reuse a single instance of this composer for all methods that you add.

Constructor Summary

Constructors

Constructor and Description
CodeAttributeComposer() Creates a new CodeAttributeComposer that doesn't allow external branch targets or exception offsets and that automatically shrinks instructions.
CodeAttributeComposer(boolean allowExternalBranchTargets, boolean allowExternalExceptionOffsets, boolean shrinkInstructions) Creates a new CodeAttributeComposer.
CodeAttributeComposer(boolean allowExternalBranchTargets, boolean allowExternalExceptionOffsets, boolean shrinkInstructions, boolean absoluteBranchOffsets) Creates a new CodeAttributeComposer.

Method Summary

Modifier and Type	Method and Description
void	addCodeAttribute(ProgramClass programClass, ProgramMethod programMethod) Adds the code that has been built as a code attribute to the given method.
void	addCodeAttribute(ProgramClass programClass, ProgramMethod programMethod, ConstantPoolEditor constantPoolEditor) Adds the code that has been built as a code attribute to the given method.
void	appendException(ExceptionInfo exceptionInfo) Appends the given exception to the exception table.
void	appendInstruction(Instruction instruction) Appends the given instruction without a defined offset.
void	appendInstruction(int oldInstructionOffset, Instruction instruction) Appends the given instruction with the given old offset.
void	appendInstructions(Instruction[] instructions) Appends the given instruction without defined offsets.
void	appendLabel(int oldInstructionOffset) Appends the given label with the given old offset.
void	appendLineNumber(LineNumberInfo lineNumberInfo) Appends the given line number to the line number table.
void	beginCodeFragment(int maximumCodeFragmentLength) Starts a new code fragment.
void	endCodeFragment() Wraps up the current code fragment, continuing with the previous one on the stack.
int	getCodeLength() Returns the current length (in bytes) of the code attribute being composed.
int	insertLineNumber(int minimumIndex, LineNumberInfo lineNumberInfo) Inserts the given line number at the appropriate position in the line number table.
int	insertLineNumber(LineNumberInfo lineNumberInfo) Inserts the given line number at the appropriate position in the line number table.
static void	main(java.lang.String[] args) Small sample application that illustrates the use of this class.
void	reset() Starts a new code definition.
void	visitAnyAttribute(Clazz clazz, Attribute attribute) Visits any Attribute instance.
void	visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction) Visits any Instruction instance.
void	visitAnyStackMapFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, StackMapFrame stackMapFrame) Visits any StackMapFrame instance.
void	visitAnySwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SwitchInstruction switchInstruction) Visits any SwitchInstruction instance.
void	visitAnyTargetInfo(Clazz clazz, TypeAnnotation typeAnnotation, TargetInfo targetInfo) Visits any TargetInfo instance.
void	visitAnyTypeAnnotationsAttribute(Clazz clazz, TypeAnnotationsAttribute typeAnnotationsAttribute) Visits any TypeAnnotationsAttribute instance.
void	visitAnyVerificationType(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VerificationType verificationType) Visits any VerificationType instance.
void	visitBranchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, BranchInstruction branchInstruction)
void	visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute) Sets the code that has been built in the given code attribute.
void	visitExceptionInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo)
void	visitFullFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, FullFrame fullFrame)
void	visitLineNumberInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, LineNumberInfo lineNumberInfo)
void	visitLineNumberTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LineNumberTableAttribute lineNumberTableAttribute)
void	visitLocalVariableInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableInfo localVariableInfo)
void	visitLocalVariableTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTableAttribute localVariableTableAttribute)
void	visitLocalVariableTargetElement(Clazz clazz, Method method, CodeAttribute codeAttribute, TypeAnnotation typeAnnotation, LocalVariableTargetInfo localVariableTargetInfo, LocalVariableTargetElement localVariableTargetElement)
void	visitLocalVariableTargetInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, TypeAnnotation typeAnnotation, LocalVariableTargetInfo localVariableTargetInfo)
void	visitLocalVariableTypeInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTypeInfo localVariableTypeInfo)
void	visitLocalVariableTypeTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTypeTableAttribute localVariableTypeTableAttribute)
void	visitMoreZeroFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, MoreZeroFrame moreZeroFrame)
void	visitOffsetTargetInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, TypeAnnotation typeAnnotation, OffsetTargetInfo offsetTargetInfo)
void	visitRuntimeInvisibleTypeAnnotationsAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, RuntimeInvisibleTypeAnnotationsAttribute runtimeInvisibleTypeAnnotationsAttribute)
void	visitRuntimeVisibleTypeAnnotationsAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, RuntimeVisibleTypeAnnotationsAttribute runtimeVisibleTypeAnnotationsAttribute)
void	visitSameOneFrame(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SameOneFrame sameOneFrame)
void	visitStackMapAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapAttribute stackMapAttribute)
void	visitStackMapTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapTableAttribute stackMapTableAttribute)
void	visitTypeAnnotation(Clazz clazz, Method method, CodeAttribute codeAttribute, TypeAnnotation typeAnnotation)
void	visitTypeAnnotation(Clazz clazz, TypeAnnotation typeAnnotation) Visits any TypeAnnotation instance.
void	visitTypeArgumentTargetInfo(Clazz clazz, Method method, CodeAttribute codeAttribute, TypeAnnotation typeAnnotation, TypeArgumentTargetInfo typeArgumentTargetInfo)
void	visitUninitializedType(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, UninitializedType uninitializedType)

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, visitAnyAnnotationsAttribute, visitAnyParameterAnnotationsAttribute, visitBootstrapMethodsAttribute, visitConstantValueAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitDeprecatedAttribute, visitEnclosingMethodAttribute, visitExceptionsAttribute, visitInnerClassesAttribute, visitMethodParametersAttribute, visitModuleAttribute, visitModuleMainClassAttribute, visitModulePackagesAttribute, visitNestHostAttribute, visitNestMembersAttribute, visitPermittedSubclassesAttribute, visitRecordAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleAnnotationsAttribute, visitRuntimeInvisibleParameterAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeInvisibleTypeAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleAnnotationsAttribute, visitRuntimeVisibleParameterAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitRuntimeVisibleTypeAnnotationsAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSignatureAttribute, visitSourceDebugExtensionAttribute, visitSourceDirAttribute, visitSourceFileAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitSyntheticAttribute, visitUnknownAttribute

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

visitConstantInstruction, visitLookUpSwitchInstruction, visitSimpleInstruction, visitTableSwitchInstruction, visitVariableInstruction

Methods inherited from interface proguard.classfile.attribute.preverification.visitor.StackMapFrameVisitor

visitLessZeroFrame, visitSameZeroFrame

Methods inherited from interface proguard.classfile.attribute.preverification.visitor.VerificationTypeVisitor

visitDoubleType, visitFloatType, visitIntegerType, visitLongType, visitNullType, visitObjectType, visitStackDoubleType, visitStackFloatType, visitStackIntegerType, visitStackLongType, visitStackNullType, visitStackObjectType, visitStackTopType, visitStackUninitializedThisType, visitStackUninitializedType, visitTopType, visitUninitializedThisType, visitVariablesDoubleType, visitVariablesFloatType, visitVariablesIntegerType, visitVariablesLongType, visitVariablesNullType, visitVariablesObjectType, visitVariablesTopType, visitVariablesUninitializedThisType, visitVariablesUninitializedType

Methods inherited from interface proguard.classfile.attribute.annotation.visitor.TypeAnnotationVisitor

visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation, visitTypeAnnotation

Methods inherited from interface proguard.classfile.attribute.annotation.target.visitor.TargetInfoVisitor

visitCatchTargetInfo, visitEmptyTargetInfo, visitEmptyTargetInfo, visitEmptyTargetInfo, visitFormalParameterTargetInfo, visitSuperTypeTargetInfo, visitThrowsTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterBoundTargetInfo, visitTypeParameterTargetInfo, visitTypeParameterTargetInfo

Constructor Detail

CodeAttributeComposer

public CodeAttributeComposer()

Creates a new CodeAttributeComposer that doesn't allow external branch targets or exception offsets and that automatically shrinks instructions.

CodeAttributeComposer

public CodeAttributeComposer(boolean allowExternalBranchTargets,
                             boolean allowExternalExceptionOffsets,
                             boolean shrinkInstructions)

Creates a new CodeAttributeComposer.

Parameters:

allowExternalBranchTargets - specifies whether branch targets can lie outside the code fragment of the branch instructions.

allowExternalExceptionOffsets - specifies whether exception offsets can lie outside the code fragment in which exceptions are defined.

shrinkInstructions - specifies whether instructions should automatically be shrunk before being written.

CodeAttributeComposer

public CodeAttributeComposer(boolean allowExternalBranchTargets,
                             boolean allowExternalExceptionOffsets,
                             boolean shrinkInstructions,
                             boolean absoluteBranchOffsets)

Creates a new CodeAttributeComposer.

Parameters:

allowExternalBranchTargets - specifies whether branch targets can lie outside the code fragment of the branch instructions.

allowExternalExceptionOffsets - specifies whether exception offsets can lie outside the code fragment in which exceptions are defined.

shrinkInstructions - specifies whether instructions should automatically be shrunk before being written.

absoluteBranchOffsets - specifies whether offsets of appended branch instructions and switch instructions are absolute, that is, relative to the start of the code, instead of relative to the instructions. This may simplify creating code manually, assuming the offsets don't overflow.

Method Detail

reset

public void reset()

Starts a new code definition.

beginCodeFragment

public void beginCodeFragment(int maximumCodeFragmentLength)

Starts a new code fragment. Branch instructions that are added are assumed to be relative within such code fragments.

Parameters:

maximumCodeFragmentLength - the maximum length of the code that will be added as part of this fragment (more precisely, the maximum old instruction offset or label that is specified, plus one).

getCodeLength

public int getCodeLength()

Returns the current length (in bytes) of the code attribute being composed.

appendInstruction

public void appendInstruction(int oldInstructionOffset,
                              Instruction instruction)

Appends the given instruction with the given old offset. Branch instructions must fit, for instance by enabling automatic shrinking of instructions.

Parameters:

oldInstructionOffset - the old offset of the instruction, to which branches and other references in the current code fragment are pointing.

instruction - the instruction to be appended.

appendLabel

public void appendLabel(int oldInstructionOffset)

Appends the given label with the given old offset.

Parameters:

oldInstructionOffset - the old offset of the label, to which branches and other references in the current code fragment are pointing.

appendInstructions

public void appendInstructions(Instruction[] instructions)

Appends the given instruction without defined offsets.

Parameters:

instructions - the instructions to be appended.

appendInstruction

public void appendInstruction(Instruction instruction)

Appends the given instruction without a defined offset. Branch instructions should have a label, to allow computing the new relative offset. Branch instructions must fit, for instance by enabling automatic shrinking of instructions.

Parameters:

instruction - the instruction to be appended.

appendException

public void appendException(ExceptionInfo exceptionInfo)

Appends the given exception to the exception table.

Parameters:

exceptionInfo - the exception to be appended.

insertLineNumber

public int insertLineNumber(LineNumberInfo lineNumberInfo)

Inserts the given line number at the appropriate position in the line number table.

Parameters:

lineNumberInfo - the line number to be inserted.

Returns:

the index where the line number was actually inserted.

insertLineNumber

public int insertLineNumber(int minimumIndex,
                            LineNumberInfo lineNumberInfo)

Inserts the given line number at the appropriate position in the line number table.

Parameters:

minimumIndex - the minimum index where the line number may be inserted.

lineNumberInfo - the line number to be inserted.

Returns:

the index where the line number was inserted.

appendLineNumber

public void appendLineNumber(LineNumberInfo lineNumberInfo)

Appends the given line number to the line number table.

Parameters:

lineNumberInfo - the line number to be appended.

endCodeFragment

public void endCodeFragment()

Wraps up the current code fragment, continuing with the previous one on the stack.

addCodeAttribute

public void addCodeAttribute(ProgramClass programClass,
                             ProgramMethod programMethod)

Adds the code that has been built as a code attribute to the given method.

addCodeAttribute

public void addCodeAttribute(ProgramClass programClass,
                             ProgramMethod programMethod,
                             ConstantPoolEditor constantPoolEditor)

Adds the code that has been built as a code attribute to the given method. Reuses the given constant pool editor, which may be more efficient.

visitAnyAttribute

public void visitAnyAttribute(Clazz clazz,
                              Attribute attribute)

Description copied from interface: AttributeVisitor

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

Specified by:

visitAnyAttribute in interface AttributeVisitor

visitCodeAttribute

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

Sets the code that has been built in the given code attribute.

Specified by:

visitCodeAttribute in interface AttributeVisitor

visitStackMapAttribute

public void visitStackMapAttribute(Clazz clazz,
                                   Method method,
                                   CodeAttribute codeAttribute,
                                   StackMapAttribute stackMapAttribute)

Specified by:

visitStackMapAttribute in interface AttributeVisitor

visitStackMapTableAttribute

public void visitStackMapTableAttribute(Clazz clazz,
                                        Method method,
                                        CodeAttribute codeAttribute,
                                        StackMapTableAttribute stackMapTableAttribute)

Specified by:

visitStackMapTableAttribute in interface AttributeVisitor

visitLineNumberTableAttribute

public void visitLineNumberTableAttribute(Clazz clazz,
                                          Method method,
                                          CodeAttribute codeAttribute,
                                          LineNumberTableAttribute lineNumberTableAttribute)

Specified by:

visitLineNumberTableAttribute in interface AttributeVisitor

visitLocalVariableTableAttribute

public void visitLocalVariableTableAttribute(Clazz clazz,
                                             Method method,
                                             CodeAttribute codeAttribute,
                                             LocalVariableTableAttribute localVariableTableAttribute)

Specified by:

visitLocalVariableTableAttribute in interface AttributeVisitor

visitLocalVariableTypeTableAttribute

public void visitLocalVariableTypeTableAttribute(Clazz clazz,
                                                 Method method,
                                                 CodeAttribute codeAttribute,
                                                 LocalVariableTypeTableAttribute localVariableTypeTableAttribute)

Specified by:

visitLocalVariableTypeTableAttribute in interface AttributeVisitor

visitAnyTypeAnnotationsAttribute

public void visitAnyTypeAnnotationsAttribute(Clazz clazz,
                                             TypeAnnotationsAttribute typeAnnotationsAttribute)

Description copied from interface: AttributeVisitor

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

Specified by:

visitAnyTypeAnnotationsAttribute in interface AttributeVisitor

visitRuntimeVisibleTypeAnnotationsAttribute

public void visitRuntimeVisibleTypeAnnotationsAttribute(Clazz clazz,
                                                        Method method,
                                                        CodeAttribute codeAttribute,
                                                        RuntimeVisibleTypeAnnotationsAttribute runtimeVisibleTypeAnnotationsAttribute)

Specified by:

visitRuntimeVisibleTypeAnnotationsAttribute in interface AttributeVisitor

visitRuntimeInvisibleTypeAnnotationsAttribute

public void visitRuntimeInvisibleTypeAnnotationsAttribute(Clazz clazz,
                                                          Method method,
                                                          CodeAttribute codeAttribute,
                                                          RuntimeInvisibleTypeAnnotationsAttribute runtimeInvisibleTypeAnnotationsAttribute)

Specified by:

visitRuntimeInvisibleTypeAnnotationsAttribute in interface AttributeVisitor

visitAnyInstruction

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

Description copied from interface: InstructionVisitor

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

Specified by:

visitAnyInstruction in interface InstructionVisitor

visitBranchInstruction

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

Specified by:

visitBranchInstruction in interface InstructionVisitor

visitAnySwitchInstruction

public void visitAnySwitchInstruction(Clazz clazz,
                                      Method method,
                                      CodeAttribute codeAttribute,
                                      int offset,
                                      SwitchInstruction switchInstruction)

Description copied from interface: InstructionVisitor

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

Specified by:

visitAnySwitchInstruction in interface InstructionVisitor

visitExceptionInfo

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

Specified by:

visitExceptionInfo in interface ExceptionInfoVisitor

visitAnyStackMapFrame

public void visitAnyStackMapFrame(Clazz clazz,
                                  Method method,
                                  CodeAttribute codeAttribute,
                                  int offset,
                                  StackMapFrame stackMapFrame)

Description copied from interface: StackMapFrameVisitor

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

Specified by:

visitAnyStackMapFrame in interface StackMapFrameVisitor

visitSameOneFrame

public void visitSameOneFrame(Clazz clazz,
                              Method method,
                              CodeAttribute codeAttribute,
                              int offset,
                              SameOneFrame sameOneFrame)

Specified by:

visitSameOneFrame in interface StackMapFrameVisitor

visitMoreZeroFrame

public void visitMoreZeroFrame(Clazz clazz,
                               Method method,
                               CodeAttribute codeAttribute,
                               int offset,
                               MoreZeroFrame moreZeroFrame)

Specified by:

visitMoreZeroFrame in interface StackMapFrameVisitor

visitFullFrame

public void visitFullFrame(Clazz clazz,
                           Method method,
                           CodeAttribute codeAttribute,
                           int offset,
                           FullFrame fullFrame)

Specified by:

visitFullFrame in interface StackMapFrameVisitor

visitAnyVerificationType

public void visitAnyVerificationType(Clazz clazz,
                                     Method method,
                                     CodeAttribute codeAttribute,
                                     int offset,
                                     VerificationType verificationType)

Description copied from interface: VerificationTypeVisitor

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

Specified by:

visitAnyVerificationType in interface VerificationTypeVisitor

visitUninitializedType

public void visitUninitializedType(Clazz clazz,
                                   Method method,
                                   CodeAttribute codeAttribute,
                                   int offset,
                                   UninitializedType uninitializedType)

Specified by:

visitUninitializedType in interface VerificationTypeVisitor

visitLineNumberInfo

public void visitLineNumberInfo(Clazz clazz,
                                Method method,
                                CodeAttribute codeAttribute,
                                LineNumberInfo lineNumberInfo)

Specified by:

visitLineNumberInfo in interface LineNumberInfoVisitor

visitLocalVariableInfo

public void visitLocalVariableInfo(Clazz clazz,
                                   Method method,
                                   CodeAttribute codeAttribute,
                                   LocalVariableInfo localVariableInfo)

Specified by:

visitLocalVariableInfo in interface LocalVariableInfoVisitor

visitLocalVariableTypeInfo

public void visitLocalVariableTypeInfo(Clazz clazz,
                                       Method method,
                                       CodeAttribute codeAttribute,
                                       LocalVariableTypeInfo localVariableTypeInfo)

Specified by:

visitLocalVariableTypeInfo in interface LocalVariableTypeInfoVisitor

visitTypeAnnotation

public void visitTypeAnnotation(Clazz clazz,
                                TypeAnnotation typeAnnotation)

Description copied from interface: TypeAnnotationVisitor

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

Specified by:

visitTypeAnnotation in interface TypeAnnotationVisitor

visitTypeAnnotation

public void visitTypeAnnotation(Clazz clazz,
                                Method method,
                                CodeAttribute codeAttribute,
                                TypeAnnotation typeAnnotation)

Specified by:

visitTypeAnnotation in interface TypeAnnotationVisitor

visitAnyTargetInfo

public void visitAnyTargetInfo(Clazz clazz,
                               TypeAnnotation typeAnnotation,
                               TargetInfo targetInfo)

Description copied from interface: TargetInfoVisitor

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

Specified by:

visitAnyTargetInfo in interface TargetInfoVisitor

visitLocalVariableTargetInfo

public void visitLocalVariableTargetInfo(Clazz clazz,
                                         Method method,
                                         CodeAttribute codeAttribute,
                                         TypeAnnotation typeAnnotation,
                                         LocalVariableTargetInfo localVariableTargetInfo)

Specified by:

visitLocalVariableTargetInfo in interface TargetInfoVisitor

visitOffsetTargetInfo

public void visitOffsetTargetInfo(Clazz clazz,
                                  Method method,
                                  CodeAttribute codeAttribute,
                                  TypeAnnotation typeAnnotation,
                                  OffsetTargetInfo offsetTargetInfo)

Specified by:

visitOffsetTargetInfo in interface TargetInfoVisitor

visitTypeArgumentTargetInfo

public void visitTypeArgumentTargetInfo(Clazz clazz,
                                        Method method,
                                        CodeAttribute codeAttribute,
                                        TypeAnnotation typeAnnotation,
                                        TypeArgumentTargetInfo typeArgumentTargetInfo)

Specified by:

visitTypeArgumentTargetInfo in interface TargetInfoVisitor

visitLocalVariableTargetElement

public void visitLocalVariableTargetElement(Clazz clazz,
                                            Method method,
                                            CodeAttribute codeAttribute,
                                            TypeAnnotation typeAnnotation,
                                            LocalVariableTargetInfo localVariableTargetInfo,
                                            LocalVariableTargetElement localVariableTargetElement)

Specified by:

visitLocalVariableTargetElement in interface LocalVariableTargetElementVisitor

main

public static void main(java.lang.String[] args)

Small sample application that illustrates the use of this class.