Package org.objectweb.asm.commons
Class MethodRemapper
- java.lang.Object
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- org.objectweb.asm.MethodVisitor
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- org.objectweb.asm.commons.MethodRemapper
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public class MethodRemapper extends MethodVisitor
ALocalVariablesSorter
for type mapping.- Author:
- Eugene Kuleshov
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Field Summary
Fields Modifier and Type Field Description protected Remapper
remapper
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Fields inherited from class org.objectweb.asm.MethodVisitor
api, mv
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Constructor Summary
Constructors Modifier Constructor Description protected
MethodRemapper(int api, MethodVisitor mv, Remapper remapper)
MethodRemapper(MethodVisitor mv, Remapper remapper)
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description AnnotationVisitor
visitAnnotation(java.lang.String desc, boolean visible)
Visits an annotation of this method.AnnotationVisitor
visitAnnotationDefault()
Visits the default value of this annotation interface method.void
visitFieldInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)
Visits a field instruction.void
visitFrame(int type, int nLocal, java.lang.Object[] local, int nStack, java.lang.Object[] stack)
Visits the current state of the local variables and operand stack elements.AnnotationVisitor
visitInsnAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Visits an annotation on an instruction.void
visitInvokeDynamicInsn(java.lang.String name, java.lang.String desc, Handle bsm, java.lang.Object... bsmArgs)
Visits an invokedynamic instruction.void
visitLdcInsn(java.lang.Object cst)
Visits a LDC instruction.void
visitLocalVariable(java.lang.String name, java.lang.String desc, java.lang.String signature, Label start, Label end, int index)
Visits a local variable declaration.AnnotationVisitor
visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, java.lang.String desc, boolean visible)
Visits an annotation on a local variable type.void
visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)
Deprecated.void
visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc, boolean itf)
Visits a method instruction.void
visitMultiANewArrayInsn(java.lang.String desc, int dims)
Visits a MULTIANEWARRAY instruction.AnnotationVisitor
visitParameterAnnotation(int parameter, java.lang.String desc, boolean visible)
Visits an annotation of a parameter this method.AnnotationVisitor
visitTryCatchAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Visits an annotation on an exception handler type.void
visitTryCatchBlock(Label start, Label end, Label handler, java.lang.String type)
Visits a try catch block.AnnotationVisitor
visitTypeAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Visits an annotation on a type in the method signature.void
visitTypeInsn(int opcode, java.lang.String type)
Visits a type instruction.-
Methods inherited from class org.objectweb.asm.MethodVisitor
visitAttribute, visitCode, visitEnd, visitIincInsn, visitInsn, visitIntInsn, visitJumpInsn, visitLabel, visitLineNumber, visitLookupSwitchInsn, visitMaxs, visitParameter, visitTableSwitchInsn, visitVarInsn
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Field Detail
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remapper
protected final Remapper remapper
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Constructor Detail
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MethodRemapper
public MethodRemapper(MethodVisitor mv, Remapper remapper)
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MethodRemapper
protected MethodRemapper(int api, MethodVisitor mv, Remapper remapper)
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Method Detail
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visitAnnotationDefault
public AnnotationVisitor visitAnnotationDefault()
Description copied from class:MethodVisitor
Visits the default value of this annotation interface method.- Overrides:
visitAnnotationDefault
in classMethodVisitor
- Returns:
- a visitor to the visit the actual default value of this annotation interface method, or null if this visitor is not interested in visiting this default value. The 'name' parameters passed to the methods of this annotation visitor are ignored. Moreover, exacly one visit method must be called on this annotation visitor, followed by visitEnd.
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visitAnnotation
public AnnotationVisitor visitAnnotation(java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation of this method.- Overrides:
visitAnnotation
in classMethodVisitor
- Parameters:
desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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visitTypeAnnotation
public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation on a type in the method signature.- Overrides:
visitTypeAnnotation
in classMethodVisitor
- Parameters:
typeRef
- a reference to the annotated type. The sort of this type reference must beMETHOD_TYPE_PARAMETER
,METHOD_TYPE_PARAMETER_BOUND
,METHOD_RETURN
,METHOD_RECEIVER
,METHOD_FORMAL_PARAMETER
orTHROWS
. SeeTypeReference
.typePath
- the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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visitParameterAnnotation
public AnnotationVisitor visitParameterAnnotation(int parameter, java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation of a parameter this method.- Overrides:
visitParameterAnnotation
in classMethodVisitor
- Parameters:
parameter
- the parameter index.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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visitFrame
public void visitFrame(int type, int nLocal, java.lang.Object[] local, int nStack, java.lang.Object[] stack)
Description copied from class:MethodVisitor
Visits the current state of the local variables and operand stack elements. This method must(*) be called just before any instruction i that follows an unconditional branch instruction such as GOTO or THROW, that is the target of a jump instruction, or that starts an exception handler block. The visited types must describe the values of the local variables and of the operand stack elements just before i is executed.
(*) this is mandatory only for classes whose version is greater than or equal toV1_6
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The frames of a method must be given either in expanded form, or in compressed form (all frames must use the same format, i.e. you must not mix expanded and compressed frames within a single method):- In expanded form, all frames must have the F_NEW type.
- In compressed form, frames are basically "deltas" from the state of
the previous frame:
Opcodes.F_SAME
representing frame with exactly the same locals as the previous frame and with the empty stack.Opcodes.F_SAME1
representing frame with exactly the same locals as the previous frame and with single value on the stack (nStack
is 1 andstack[0]
contains value for the type of the stack item).Opcodes.F_APPEND
representing frame with current locals are the same as the locals in the previous frame, except that additional locals are defined (nLocal
is 1, 2 or 3 andlocal
elements contains values representing added types).Opcodes.F_CHOP
representing frame with current locals are the same as the locals in the previous frame, except that the last 1-3 locals are absent and with the empty stack (nLocals
is 1, 2 or 3).Opcodes.F_FULL
representing complete frame data.
In both cases the first frame, corresponding to the method's parameters and access flags, is implicit and must not be visited. Also, it is illegal to visit two or more frames for the same code location (i.e., at least one instruction must be visited between two calls to visitFrame).- Overrides:
visitFrame
in classMethodVisitor
- Parameters:
type
- the type of this stack map frame. Must beOpcodes.F_NEW
for expanded frames, orOpcodes.F_FULL
,Opcodes.F_APPEND
,Opcodes.F_CHOP
,Opcodes.F_SAME
orOpcodes.F_APPEND
,Opcodes.F_SAME1
for compressed frames.nLocal
- the number of local variables in the visited frame.local
- the local variable types in this frame. This array must not be modified. Primitive types are represented byOpcodes.TOP
,Opcodes.INTEGER
,Opcodes.FLOAT
,Opcodes.LONG
,Opcodes.DOUBLE
,Opcodes.NULL
orOpcodes.UNINITIALIZED_THIS
(long and double are represented by a single element). Reference types are represented by String objects (representing internal names), and uninitialized types by Label objects (this label designates the NEW instruction that created this uninitialized value).nStack
- the number of operand stack elements in the visited frame.stack
- the operand stack types in this frame. This array must not be modified. Its content has the same format as the "local" array.
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visitFieldInsn
public void visitFieldInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)
Description copied from class:MethodVisitor
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object.- Overrides:
visitFieldInsn
in classMethodVisitor
- Parameters:
opcode
- the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.owner
- the internal name of the field's owner class (seegetInternalName
).name
- the field's name.desc
- the field's descriptor (seeType
).
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visitMethodInsn
@Deprecated public void visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)
Deprecated.Description copied from class:MethodVisitor
Visits a method instruction. A method instruction is an instruction that invokes a method.- Overrides:
visitMethodInsn
in classMethodVisitor
- Parameters:
opcode
- the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.owner
- the internal name of the method's owner class (seegetInternalName
).name
- the method's name.desc
- the method's descriptor (seeType
).
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visitMethodInsn
public void visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc, boolean itf)
Description copied from class:MethodVisitor
Visits a method instruction. A method instruction is an instruction that invokes a method.- Overrides:
visitMethodInsn
in classMethodVisitor
- Parameters:
opcode
- the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.owner
- the internal name of the method's owner class (seegetInternalName
).name
- the method's name.desc
- the method's descriptor (seeType
).itf
- if the method's owner class is an interface.
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visitInvokeDynamicInsn
public void visitInvokeDynamicInsn(java.lang.String name, java.lang.String desc, Handle bsm, java.lang.Object... bsmArgs)
Description copied from class:MethodVisitor
Visits an invokedynamic instruction.- Overrides:
visitInvokeDynamicInsn
in classMethodVisitor
- Parameters:
name
- the method's name.desc
- the method's descriptor (seeType
).bsm
- the bootstrap method.bsmArgs
- the bootstrap method constant arguments. Each argument must be anInteger
,Float
,Long
,Double
,String
,Type
orHandle
value. This method is allowed to modify the content of the array so a caller should expect that this array may change.
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visitTypeInsn
public void visitTypeInsn(int opcode, java.lang.String type)
Description copied from class:MethodVisitor
Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter.- Overrides:
visitTypeInsn
in classMethodVisitor
- Parameters:
opcode
- the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.type
- the operand of the instruction to be visited. This operand must be the internal name of an object or array class (seegetInternalName
).
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visitLdcInsn
public void visitLdcInsn(java.lang.Object cst)
Description copied from class:MethodVisitor
Visits a LDC instruction. Note that new constant types may be added in future versions of the Java Virtual Machine. To easily detect new constant types, implementations of this method should check for unexpected constant types, like this:if (cst instanceof Integer) { // ... } else if (cst instanceof Float) { // ... } else if (cst instanceof Long) { // ... } else if (cst instanceof Double) { // ... } else if (cst instanceof String) { // ... } else if (cst instanceof Type) { int sort = ((Type) cst).getSort(); if (sort == Type.OBJECT) { // ... } else if (sort == Type.ARRAY) { // ... } else if (sort == Type.METHOD) { // ... } else { // throw an exception } } else if (cst instanceof Handle) { // ... } else { // throw an exception }
- Overrides:
visitLdcInsn
in classMethodVisitor
- Parameters:
cst
- the constant to be loaded on the stack. This parameter must be a non nullInteger
, aFloat
, aLong
, aDouble
, aString
, aType
of OBJECT or ARRAY sort for .class constants, for classes whose version is 49.0, aType
of METHOD sort or aHandle
for MethodType and MethodHandle constants, for classes whose version is 51.0.
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visitMultiANewArrayInsn
public void visitMultiANewArrayInsn(java.lang.String desc, int dims)
Description copied from class:MethodVisitor
Visits a MULTIANEWARRAY instruction.- Overrides:
visitMultiANewArrayInsn
in classMethodVisitor
- Parameters:
desc
- an array type descriptor (seeType
).dims
- number of dimensions of the array to allocate.
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visitInsnAnnotation
public AnnotationVisitor visitInsnAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation on an instruction. This method must be called just after the annotated instruction. It can be called several times for the same instruction.- Overrides:
visitInsnAnnotation
in classMethodVisitor
- Parameters:
typeRef
- a reference to the annotated type. The sort of this type reference must beINSTANCEOF
,NEW
,CONSTRUCTOR_REFERENCE
,METHOD_REFERENCE
,CAST
,CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
,METHOD_INVOCATION_TYPE_ARGUMENT
,CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
, orMETHOD_REFERENCE_TYPE_ARGUMENT
. SeeTypeReference
.typePath
- the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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visitTryCatchBlock
public void visitTryCatchBlock(Label start, Label end, Label handler, java.lang.String type)
Description copied from class:MethodVisitor
Visits a try catch block.- Overrides:
visitTryCatchBlock
in classMethodVisitor
- Parameters:
start
- beginning of the exception handler's scope (inclusive).end
- end of the exception handler's scope (exclusive).handler
- beginning of the exception handler's code.type
- internal name of the type of exceptions handled by the handler, or null to catch any exceptions (for "finally" blocks).
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visitTryCatchAnnotation
public AnnotationVisitor visitTryCatchAnnotation(int typeRef, TypePath typePath, java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation on an exception handler type. This method must be called after theMethodVisitor.visitTryCatchBlock(org.objectweb.asm.Label, org.objectweb.asm.Label, org.objectweb.asm.Label, java.lang.String)
for the annotated exception handler. It can be called several times for the same exception handler.- Overrides:
visitTryCatchAnnotation
in classMethodVisitor
- Parameters:
typeRef
- a reference to the annotated type. The sort of this type reference must beEXCEPTION_PARAMETER
. SeeTypeReference
.typePath
- the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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visitLocalVariable
public void visitLocalVariable(java.lang.String name, java.lang.String desc, java.lang.String signature, Label start, Label end, int index)
Description copied from class:MethodVisitor
Visits a local variable declaration.- Overrides:
visitLocalVariable
in classMethodVisitor
- Parameters:
name
- the name of a local variable.desc
- the type descriptor of this local variable.signature
- the type signature of this local variable. May be null if the local variable type does not use generic types.start
- the first instruction corresponding to the scope of this local variable (inclusive).end
- the last instruction corresponding to the scope of this local variable (exclusive).index
- the local variable's index.
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visitLocalVariableAnnotation
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, java.lang.String desc, boolean visible)
Description copied from class:MethodVisitor
Visits an annotation on a local variable type.- Overrides:
visitLocalVariableAnnotation
in classMethodVisitor
- Parameters:
typeRef
- a reference to the annotated type. The sort of this type reference must beLOCAL_VARIABLE
orRESOURCE_VARIABLE
. SeeTypeReference
.typePath
- the path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.start
- the fist instructions corresponding to the continuous ranges that make the scope of this local variable (inclusive).end
- the last instructions corresponding to the continuous ranges that make the scope of this local variable (exclusive). This array must have the same size as the 'start' array.index
- the local variable's index in each range. This array must have the same size as the 'start' array.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.- Returns:
- a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
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