MethodRemapper (ASM 5.2 Documentation)

java.lang.Object
- org.objectweb.asm.MethodVisitor
- - org.objectweb.asm.commons.MethodRemapper

```
public class MethodRemapper
extends MethodVisitor
```
A LocalVariablesSorter for type mapping.

Author:

Eugene Kuleshov

Field Summary

Fields
Modifier and Type Field and Description

protected Remapper remapper
- Fields inherited from class org.objectweb.asm.MethodVisitor
  api, mv

Fields
Modifier and Type	Field and Description
`protected Remapper`	`remapper`

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`MethodRemapper(int api, MethodVisitor mv, Remapper remapper)`
	`MethodRemapper(MethodVisitor mv, Remapper remapper)`

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`AnnotationVisitor`	`visitAnnotation(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, String owner, String name, String desc)` Visits a field instruction.
`void`	`visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack)` Visits the current state of the local variables and operand stack elements.
`AnnotationVisitor`	`visitInsnAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)` Visits an annotation on an instruction.
`void`	`visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs)` Visits an invokedynamic instruction.
`void`	`visitLdcInsn(Object cst)` Visits a LDC instruction.
`void`	`visitLocalVariable(String name, String desc, 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, String desc, boolean visible)` Visits an annotation on a local variable type.
`void`	`visitMethodInsn(int opcode, String owner, String name, String desc)` Deprecated.
`void`	`visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf)` Visits a method instruction.
`void`	`visitMultiANewArrayInsn(String desc, int dims)` Visits a MULTIANEWARRAY instruction.
`AnnotationVisitor`	`visitParameterAnnotation(int parameter, String desc, boolean visible)` Visits an annotation of a parameter this method.
`AnnotationVisitor`	`visitTryCatchAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)` Visits an annotation on an exception handler type.
`void`	`visitTryCatchBlock(Label start, Label end, Label handler, String type)` Visits a try catch block.
`AnnotationVisitor`	`visitTypeAnnotation(int typeRef, TypePath typePath, String desc, boolean visible)` Visits an annotation on a type in the method signature.
`void`	`visitTypeInsn(int opcode, 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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - remapper
```
protected final Remapper remapper
```
- Constructor Detail
  - MethodRemapper
```
public MethodRemapper(MethodVisitor mv,
                      Remapper remapper)
```
  - MethodRemapper
```
protected MethodRemapper(int api,
                         MethodVisitor mv,
                         Remapper remapper)
```
- Method Detail
  - visitAnnotationDefault
```
public AnnotationVisitor visitAnnotationDefault()
```
    Description copied from class: MethodVisitor
    
    Visits the default value of this annotation interface method.
    
    Overrides:
    
    visitAnnotationDefault in class MethodVisitor
    
    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.
  - visitAnnotation
```
public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)
```
    Description copied from class: MethodVisitor
    
    Visits an annotation of this method.
    
    Overrides:
    
    visitAnnotation in class MethodVisitor
    
    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.
  - visitTypeAnnotation
```
public AnnotationVisitor visitTypeAnnotation(int typeRef,
                                             TypePath typePath,
                                             String desc,
                                             boolean visible)
```
    Description copied from class: MethodVisitor
    
    Visits an annotation on a type in the method signature.
    
    Overrides:
    
    visitTypeAnnotation in class MethodVisitor
    
    Parameters:
    
    typeRef - a reference to the annotated type. The sort of this type reference must be METHOD_TYPE_PARAMETER, METHOD_TYPE_PARAMETER_BOUND, METHOD_RETURN, METHOD_RECEIVER, METHOD_FORMAL_PARAMETER or THROWS. See TypeReference.
    
    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.
  - visitParameterAnnotation
```
public AnnotationVisitor visitParameterAnnotation(int parameter,
                                                  String desc,
                                                  boolean visible)
```
    Description copied from class: MethodVisitor
    
    Visits an annotation of a parameter this method.
    
    Overrides:
    
    visitParameterAnnotation in class MethodVisitor
    
    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.
  - visitFrame
```
public void visitFrame(int type,
                       int nLocal,
                       Object[] local,
                       int nStack,
                       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 to V1_6.
    
    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 and stack[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 and local 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 class MethodVisitor
    
    Parameters:
    
    type - the type of this stack map frame. Must be Opcodes.F_NEW for expanded frames, or Opcodes.F_FULL, Opcodes.F_APPEND, Opcodes.F_CHOP, Opcodes.F_SAME or Opcodes.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 by Opcodes.TOP, Opcodes.INTEGER, Opcodes.FLOAT, Opcodes.LONG, Opcodes.DOUBLE,Opcodes.NULL or Opcodes.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.
  - visitFieldInsn
```
public void visitFieldInsn(int opcode,
                           String owner,
                           String name,
                           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 class MethodVisitor
    
    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 (see getInternalName).
    
    name - the field's name.
    
    desc - the field's descriptor (see Type).
  - visitMethodInsn
```
@Deprecated
public void visitMethodInsn(int opcode,
                                        String owner,
                                        String name,
                                        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 class MethodVisitor
    
    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 (see getInternalName).
    
    name - the method's name.
    
    desc - the method's descriptor (see Type).
  - visitMethodInsn
```
public void visitMethodInsn(int opcode,
                            String owner,
                            String name,
                            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 class MethodVisitor
    
    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 (see getInternalName).
    
    name - the method's name.
    
    desc - the method's descriptor (see Type).
    
    itf - if the method's owner class is an interface.
  - visitInvokeDynamicInsn
```
public void visitInvokeDynamicInsn(String name,
                                   String desc,
                                   Handle bsm,
                                   Object... bsmArgs)
```
    Description copied from class: MethodVisitor
    
    Visits an invokedynamic instruction.
    
    Overrides:
    
    visitInvokeDynamicInsn in class MethodVisitor
    
    Parameters:
    
    name - the method's name.
    
    desc - the method's descriptor (see Type).
    
    bsm - the bootstrap method.
    
    bsmArgs - the bootstrap method constant arguments. Each argument must be an Integer, Float, Long, Double, String, Type or Handle value. This method is allowed to modify the content of the array so a caller should expect that this array may change.
  - visitTypeInsn
```
public void visitTypeInsn(int opcode,
                          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 class MethodVisitor
    
    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 (see getInternalName).
  - visitLdcInsn
```
public void visitLdcInsn(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 class MethodVisitor
    
    Parameters:
    
    cst - the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double, a String, a Type of OBJECT or ARRAY sort for .class constants, for classes whose version is 49.0, a Type of METHOD sort or a Handle for MethodType and MethodHandle constants, for classes whose version is 51.0.
  - visitMultiANewArrayInsn
```
public void visitMultiANewArrayInsn(String desc,
                                    int dims)
```
    Description copied from class: MethodVisitor
    
    Visits a MULTIANEWARRAY instruction.
    
    Overrides:
    
    visitMultiANewArrayInsn in class MethodVisitor
    
    Parameters:
    
    desc - an array type descriptor (see Type).
    
    dims - number of dimensions of the array to allocate.
  - visitInsnAnnotation
```
public AnnotationVisitor visitInsnAnnotation(int typeRef,
                                             TypePath typePath,
                                             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 class MethodVisitor
    
    Parameters:
    
    typeRef - a reference to the annotated type. The sort of this type reference must be INSTANCEOF, NEW, CONSTRUCTOR_REFERENCE, METHOD_REFERENCE, CAST, CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT, METHOD_INVOCATION_TYPE_ARGUMENT, CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT, or METHOD_REFERENCE_TYPE_ARGUMENT. See TypeReference.
    
    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.
  - visitTryCatchBlock
```
public void visitTryCatchBlock(Label start,
                               Label end,
                               Label handler,
                               String type)
```
    Description copied from class: MethodVisitor
    
    Visits a try catch block.
    
    Overrides:
    
    visitTryCatchBlock in class MethodVisitor
    
    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).
  - visitTryCatchAnnotation
```
public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
                                                 TypePath typePath,
                                                 String desc,
                                                 boolean visible)
```
    Description copied from class: MethodVisitor
    
    Visits an annotation on an exception handler type. This method must be called after the MethodVisitor.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 class MethodVisitor
    
    Parameters:
    
    typeRef - a reference to the annotated type. The sort of this type reference must be EXCEPTION_PARAMETER. See TypeReference.
    
    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.
  - visitLocalVariable
```
public void visitLocalVariable(String name,
                               String desc,
                               String signature,
                               Label start,
                               Label end,
                               int index)
```
    Description copied from class: MethodVisitor
    
    Visits a local variable declaration.
    
    Overrides:
    
    visitLocalVariable in class MethodVisitor
    
    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.
  - visitLocalVariableAnnotation
```
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
                                                      TypePath typePath,
                                                      Label[] start,
                                                      Label[] end,
                                                      int[] index,
                                                      String desc,
                                                      boolean visible)
```
    Description copied from class: MethodVisitor
    
    Visits an annotation on a local variable type.
    
    Overrides:
    
    visitLocalVariableAnnotation in class MethodVisitor
    
    Parameters:
    
    typeRef - a reference to the annotated type. The sort of this type reference must be LOCAL_VARIABLE or RESOURCE_VARIABLE. See TypeReference.
    
    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.

Class MethodRemapper

Field Summary

Fields inherited from class org.objectweb.asm.MethodVisitor

Constructor Summary

Method Summary

Methods inherited from class org.objectweb.asm.MethodVisitor

Methods inherited from class java.lang.Object

Field Detail

remapper

Constructor Detail

MethodRemapper

MethodRemapper

Method Detail

visitAnnotationDefault

visitAnnotation

visitTypeAnnotation

visitParameterAnnotation

visitFrame

visitFieldInsn

visitMethodInsn

visitMethodInsn

visitInvokeDynamicInsn

visitTypeInsn

visitLdcInsn

visitMultiANewArrayInsn

visitInsnAnnotation

visitTryCatchBlock

visitTryCatchAnnotation

visitLocalVariable

visitLocalVariableAnnotation