org.spongepowered.asm.util

Class Bytecode

java.lang.Object

org.spongepowered.asm.util.Bytecode

public final class Bytecode
extends java.lang.Object

Utility methods for working with bytecode via ASM

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Bytecode.DelegateInitialiser Information bundle returned from findDelegateInit(org.objectweb.asm.tree.MethodNode, java.lang.String, java.lang.String)
static class	Bytecode.Visibility Ordinal member visibility level.

Field Summary

Fields

Modifier and Type	Field and Description
static int[]	CONSTANTS_ALL All constant opcodes
static int[]	CONSTANTS_DOUBLE Double constant opcodes
static int[]	CONSTANTS_FLOAT Float constant opcodes
static int[]	CONSTANTS_INT Integer constant opcodes
static int[]	CONSTANTS_LONG Long constant opcodes

Method Summary

Modifier and Type	Method and Description
static java.lang.String	changeDescriptorReturnType(java.lang.String desc, java.lang.String returnType) Changes the return type of a method descriptor to the specified symbol
static java.util.Map<org.objectweb.asm.tree.LabelNode,org.objectweb.asm.tree.LabelNode>	cloneLabels(org.objectweb.asm.tree.InsnList source) Clones all of the labels in the source instruction list and returns the clones in a map of old label -> new label.
static void	compareBridgeMethods(org.objectweb.asm.tree.MethodNode a, org.objectweb.asm.tree.MethodNode b) Compares two synthetic bridge methods and throws an exception if they are not compatible.
static boolean	compareFlags(org.objectweb.asm.tree.FieldNode f1, org.objectweb.asm.tree.FieldNode f2, int flag) Check whether the status of the specified flag matches on both of the supplied arguments.
static boolean	compareFlags(org.objectweb.asm.tree.MethodNode m1, org.objectweb.asm.tree.MethodNode m2, int flag) Check whether the status of the specified flag matches on both of the supplied arguments.
static java.lang.String	describeNode(org.objectweb.asm.tree.AbstractInsnNode node) Gets a description of the supplied node for debugging purposes
static void	dumpClass(byte[] bytes) Dumps the output of CheckClassAdapter.verify to System.out
static void	dumpClass(org.objectweb.asm.tree.ClassNode classNode) Dumps the output of CheckClassAdapter.verify to System.out
static Bytecode.DelegateInitialiser	findDelegateInit(org.objectweb.asm.tree.MethodNode ctor, java.lang.String superName, java.lang.String ownerName) Find the call to super() or this() in a constructor.
static org.objectweb.asm.tree.AbstractInsnNode	findInsn(org.objectweb.asm.tree.MethodNode method, int opcode) Find the first insn node with a matching opcode in the specified method
static org.objectweb.asm.tree.MethodNode	findMethod(org.objectweb.asm.tree.ClassNode classNode, java.lang.String name, java.lang.String desc) Finds a method given the method descriptor
static java.lang.String	generateDescriptor(java.lang.Object returnType, java.lang.Object... args) Generate a bytecode descriptor from the supplied tokens.
static java.lang.String	generateDescriptor(org.objectweb.asm.Type returnType, org.objectweb.asm.Type... args) Generate a bytecode descriptor from the supplied types.
static int	getArgsSize(org.objectweb.asm.Type[] args) Get the size of the specified args array in local variable terms (eg.
static int	getArgsSize(org.objectweb.asm.Type[] args, int startIndex, int endIndex) Get the size of the specified args array in local variable terms (eg.
static java.lang.String	getBoxingType(org.objectweb.asm.Type type) Get the boxing type name for the specified type, if it is a primitive.
static java.lang.Object	getConstant(org.objectweb.asm.tree.AbstractInsnNode insn) If the supplied instruction is a constant, returns the constant value from the instruction
static org.objectweb.asm.Type	getConstantType(org.objectweb.asm.tree.AbstractInsnNode insn) Returns the Type of a particular constant instruction's payload
static java.lang.String	getDescriptor(org.objectweb.asm.Type... args) Generate a method descriptor without return type for the supplied args array
static java.lang.String	getDescriptor(org.objectweb.asm.Type returnType, org.objectweb.asm.Type... args) Generate a method descriptor with the specified types
static int	getFirstNonArgLocalIndex(org.objectweb.asm.tree.MethodNode method) Get the first variable index in the supplied method which is not an argument or "this" reference, this corresponds to the size of the arguments passed in to the method plus an extra spot for "this" if the method is non-static
static int	getFirstNonArgLocalIndex(org.objectweb.asm.Type[] args, boolean includeThis) Get the first non-arg variable index based on the supplied arg array and whether to include the "this" reference, this corresponds to the size of the arguments passed in to the method plus an extra spot for "this" is specified
static int	getMaxLineNumber(org.objectweb.asm.tree.ClassNode classNode, int min, int pad) Compute the largest line number found in the specified class
static java.lang.String	getOpcodeName(org.objectweb.asm.tree.AbstractInsnNode node) Uses reflection to find an approximate constant name match for the supplied node's opcode
static java.lang.String	getOpcodeName(int opcode) Uses reflection to find an approximate constant name match for the supplied opcode
static java.lang.String	getSimpleName(org.objectweb.asm.tree.AnnotationNode annotation) Returns the simple name of an annotation, mainly used for printing annotation names in error messages/user-facing strings
static java.lang.String	getSimpleName(java.lang.Class<? extends java.lang.annotation.Annotation> annotationType) Returns the simple name of an annotation, mainly used for printing annotation names in error messages/user-facing strings
static java.lang.String	getSimpleName(java.lang.String desc) Returns the simple name from an object type descriptor (in L...; format)
static java.lang.String	getSimpleName(org.objectweb.asm.Type type) Returns the simple name of a type representing a class
static java.lang.String	getUnboxingMethod(org.objectweb.asm.Type type) Get the unboxing method name for the specified primitive type's corresponding reference type.
static Bytecode.Visibility	getVisibility(org.objectweb.asm.tree.FieldNode field) Returns the ordinal visibility of the supplied argument where a higher value equals higher "visibility": Bytecode.Visibility.PRIVATE Bytecode.Visibility.PROTECTED Bytecode.Visibility.PACKAGE Bytecode.Visibility.PUBLIC
static Bytecode.Visibility	getVisibility(org.objectweb.asm.tree.MethodNode method) Returns the ordinal visibility of the supplied argument where a higher value equals higher "visibility": Bytecode.Visibility.PRIVATE Bytecode.Visibility.PROTECTED Bytecode.Visibility.PACKAGE Bytecode.Visibility.PUBLIC
static boolean	hasFlag(org.objectweb.asm.tree.ClassNode classNode, int flag) Check whether the specified flag is set on the specified class
static boolean	hasFlag(org.objectweb.asm.tree.FieldNode field, int flag) Check whether the specified flag is set on the specified field
static boolean	hasFlag(org.objectweb.asm.tree.MethodNode method, int flag) Check whether the specified flag is set on the specified method
static boolean	isConstant(org.objectweb.asm.tree.AbstractInsnNode insn) Gets whether the supplied instruction is a constant instruction (eg.
static boolean	isStatic(org.objectweb.asm.tree.FieldNode field) Returns true if the supplied field node is static
static boolean	isStatic(org.objectweb.asm.tree.MethodNode method) Returns true if the supplied method node is static
static boolean	isVirtual(org.objectweb.asm.tree.MethodNode method) Checks whether the supplied method is virtual.
static void	loadArgs(org.objectweb.asm.Type[] args, org.objectweb.asm.tree.InsnList insns, int pos) Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at pos
static void	loadArgs(org.objectweb.asm.Type[] args, org.objectweb.asm.tree.InsnList insns, int start, int end) Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at start (inclusive) and ending at end (inclusive)
static void	loadArgs(org.objectweb.asm.Type[] args, org.objectweb.asm.tree.InsnList insns, int start, int end, org.objectweb.asm.Type[] casts) Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at start (inclusive) and ending at end (inclusive)
static void	merge(org.objectweb.asm.tree.ClassNode source, org.objectweb.asm.tree.ClassNode dest) Perform a naïve merge of ClassNode members onto a target ClassNode
static boolean	methodHasLineNumbers(org.objectweb.asm.tree.MethodNode method) Returns true if the supplied method contains any line number information
static void	printMethod(org.objectweb.asm.tree.MethodNode method) Prints a representation of a method's instructions to stderr
static void	printMethodWithOpcodeIndices(org.objectweb.asm.tree.MethodNode method) Prints a representation of a method's instructions to stderr
static void	printNode(org.objectweb.asm.tree.AbstractInsnNode node) Prints a representation of the specified insn node to stderr
static void	replace(org.objectweb.asm.tree.ClassNode source, org.objectweb.asm.tree.ClassNode dest) Replace all values in a target ClassNode with values from the Source
static void	setVisibility(org.objectweb.asm.tree.FieldNode field, Bytecode.Visibility visibility) Set the visibility of the specified member, leaving other access flags unchanged
static void	setVisibility(org.objectweb.asm.tree.FieldNode field, int access) Set the visibility of the specified member, leaving other access flags unchanged
static void	setVisibility(org.objectweb.asm.tree.MethodNode method, Bytecode.Visibility visibility) Set the visibility of the specified member, leaving other access flags unchanged
static void	setVisibility(org.objectweb.asm.tree.MethodNode method, int access) Set the visibility of the specified member, leaving other access flags unchanged
static void	textify(org.objectweb.asm.tree.ClassNode classNode, java.io.OutputStream out) Runs textifier on the specified class node and dumps the output to the specified output stream
static void	textify(org.objectweb.asm.tree.MethodNode methodNode, java.io.OutputStream out) Runs textifier on the specified method node and dumps the output to the specified output stream

Methods inherited from class java.lang.Object

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

Field Detail

CONSTANTS_INT

public static final int[] CONSTANTS_INT

Integer constant opcodes

CONSTANTS_FLOAT

public static final int[] CONSTANTS_FLOAT

Float constant opcodes

CONSTANTS_DOUBLE

public static final int[] CONSTANTS_DOUBLE

Double constant opcodes

CONSTANTS_LONG

public static final int[] CONSTANTS_LONG

Long constant opcodes

CONSTANTS_ALL

public static final int[] CONSTANTS_ALL

All constant opcodes

Method Detail

findMethod

public static org.objectweb.asm.tree.MethodNode findMethod(org.objectweb.asm.tree.ClassNode classNode,
                                                           java.lang.String name,
                                                           java.lang.String desc)

Finds a method given the method descriptor

Parameters:

classNode - the class to scan

name - the method name

desc - the method descriptor

Returns:

discovered method node or null

findInsn

public static org.objectweb.asm.tree.AbstractInsnNode findInsn(org.objectweb.asm.tree.MethodNode method,
                                                               int opcode)

Find the first insn node with a matching opcode in the specified method

Parameters:

method - method to search

opcode - opcode to search for

Returns:

found node or null if not found

findDelegateInit

public static Bytecode.DelegateInitialiser findDelegateInit(org.objectweb.asm.tree.MethodNode ctor,
                                                            java.lang.String superName,
                                                            java.lang.String ownerName)

Find the call to super() or this() in a constructor. This attempts to locate the first call to <init> which isn't an inline call to another object ctor being passed into the super invocation.

Parameters:

ctor - ctor to scan

superName - name of superclass

ownerName - name of owning class

Returns:

Call to super(), this() or DelegateInitialiser.NONE if not found

textify

public static void textify(org.objectweb.asm.tree.ClassNode classNode,
                           java.io.OutputStream out)

Runs textifier on the specified class node and dumps the output to the specified output stream

Parameters:

classNode - class to textify

out - output stream

textify

public static void textify(org.objectweb.asm.tree.MethodNode methodNode,
                           java.io.OutputStream out)

Runs textifier on the specified method node and dumps the output to the specified output stream

Parameters:

methodNode - method to textify

out - output stream

dumpClass

public static void dumpClass(org.objectweb.asm.tree.ClassNode classNode)

Dumps the output of CheckClassAdapter.verify to System.out

Parameters:

classNode - the ClassNode to verify

dumpClass

public static void dumpClass(byte[] bytes)

Dumps the output of CheckClassAdapter.verify to System.out

Parameters:

bytes - the bytecode of the class to check

printMethodWithOpcodeIndices

public static void printMethodWithOpcodeIndices(org.objectweb.asm.tree.MethodNode method)

Prints a representation of a method's instructions to stderr

Parameters:

method - Method to print

printMethod

public static void printMethod(org.objectweb.asm.tree.MethodNode method)

Prints a representation of a method's instructions to stderr

Parameters:

method - Method to print

printNode

public static void printNode(org.objectweb.asm.tree.AbstractInsnNode node)

Prints a representation of the specified insn node to stderr

Parameters:

node - Node to print

describeNode

public static java.lang.String describeNode(org.objectweb.asm.tree.AbstractInsnNode node)

Gets a description of the supplied node for debugging purposes

Parameters:

node - node to describe

Returns:

human-readable description of node

getOpcodeName

public static java.lang.String getOpcodeName(org.objectweb.asm.tree.AbstractInsnNode node)

Uses reflection to find an approximate constant name match for the supplied node's opcode

Parameters:

node - Node to query for opcode

Returns:

Approximate opcode name (approximate because some constants in the Opcodes class have the same value as opcodes

getOpcodeName

public static java.lang.String getOpcodeName(int opcode)

Uses reflection to find an approximate constant name match for the supplied opcode

Parameters:

opcode - Opcode to look up

Returns:

Approximate opcode name (approximate because some constants in the Opcodes class have the same value as opcodes

methodHasLineNumbers

public static boolean methodHasLineNumbers(org.objectweb.asm.tree.MethodNode method)

Returns true if the supplied method contains any line number information

Parameters:

method - Method to scan

Returns:

true if a line number node is located

isStatic

public static boolean isStatic(org.objectweb.asm.tree.MethodNode method)

Returns true if the supplied method node is static

Parameters:

method - method node

Returns:

true if the method has the Opcodes.ACC_STATIC flag

isStatic

public static boolean isStatic(org.objectweb.asm.tree.FieldNode field)

Returns true if the supplied field node is static

Parameters:

field - field node

Returns:

true if the field has the Opcodes.ACC_STATIC flag

getFirstNonArgLocalIndex

public static int getFirstNonArgLocalIndex(org.objectweb.asm.tree.MethodNode method)

Get the first variable index in the supplied method which is not an argument or "this" reference, this corresponds to the size of the arguments passed in to the method plus an extra spot for "this" if the method is non-static

Parameters:

method - MethodNode to inspect

Returns:

first available local index which is NOT used by a method argument or "this"

getFirstNonArgLocalIndex

public static int getFirstNonArgLocalIndex(org.objectweb.asm.Type[] args,
                                           boolean includeThis)

Get the first non-arg variable index based on the supplied arg array and whether to include the "this" reference, this corresponds to the size of the arguments passed in to the method plus an extra spot for "this" is specified

Parameters:

args - Method arguments

includeThis - Whether to include a slot for "this" (generally true for all non-static methods)

Returns:

first available local index which is NOT used by a method argument or "this"

getArgsSize

public static int getArgsSize(org.objectweb.asm.Type[] args)

Get the size of the specified args array in local variable terms (eg. doubles and longs take two spaces)

Parameters:

args - Method argument types as array

Returns:

size of the specified arguments array in terms of stack slots

getArgsSize

public static int getArgsSize(org.objectweb.asm.Type[] args,
                              int startIndex,
                              int endIndex)

Get the size of the specified args array in local variable terms (eg. doubles and longs take two spaces) using startIndex (inclusive) and endIndex (exclusive) to determine which arguments to process.

Parameters:

args - Method argument types as array

startIndex - Start index in the array, not related to arg size

endIndex - End index (exclusive) in the array, not related to size

Returns:

size of the specified arguments array in terms of stack slots

loadArgs

public static void loadArgs(org.objectweb.asm.Type[] args,
                            org.objectweb.asm.tree.InsnList insns,
                            int pos)

Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at pos

Parameters:

args - Argument types

insns - Instruction List to inject into

pos - Start position

loadArgs

public static void loadArgs(org.objectweb.asm.Type[] args,
                            org.objectweb.asm.tree.InsnList insns,
                            int start,
                            int end)

Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at start (inclusive) and ending at end (inclusive)

Parameters:

args - Argument types

insns - Instruction List to inject into

start - Start position

end - End position

loadArgs

public static void loadArgs(org.objectweb.asm.Type[] args,
                            org.objectweb.asm.tree.InsnList insns,
                            int start,
                            int end,
                            org.objectweb.asm.Type[] casts)

Injects appropriate LOAD opcodes into the supplied InsnList appropriate for each entry in the args array starting at start (inclusive) and ending at end (inclusive)

Parameters:

args - Argument types

insns - Instruction List to inject into

start - Start position

end - End position

casts - Type casts array

cloneLabels

public static java.util.Map<org.objectweb.asm.tree.LabelNode,org.objectweb.asm.tree.LabelNode> cloneLabels(org.objectweb.asm.tree.InsnList source)

Clones all of the labels in the source instruction list and returns the clones in a map of old label -> new label. This is used to facilitate the use of AbstractInsnNode.clone(java.util.Map<org.objectweb.asm.tree.LabelNode, org.objectweb.asm.tree.LabelNode>).

Parameters:

source - instruction list

Returns:

map of existing labels to their cloned counterparts

generateDescriptor

public static java.lang.String generateDescriptor(org.objectweb.asm.Type returnType,
                                                  org.objectweb.asm.Type... args)

Generate a bytecode descriptor from the supplied types.

Parameters:

returnType - the method return type, can be null for void

args - argument types

generateDescriptor

public static java.lang.String generateDescriptor(java.lang.Object returnType,
                                                  java.lang.Object... args)

Generate a bytecode descriptor from the supplied tokens. Each token can be a Type, a Class or otherwise is converted in-place by calling toString.

Parameters:

returnType - object representing the method return type, can be null for void

args - objects representing argument types

getDescriptor

public static java.lang.String getDescriptor(org.objectweb.asm.Type... args)

Generate a method descriptor without return type for the supplied args array

Parameters:

args - argument types

Returns:

method descriptor without return type

getDescriptor

public static java.lang.String getDescriptor(org.objectweb.asm.Type returnType,
                                             org.objectweb.asm.Type... args)

Generate a method descriptor with the specified types

Parameters:

returnType - return type

args - argument types

Returns:

generated method descriptor

changeDescriptorReturnType

public static java.lang.String changeDescriptorReturnType(java.lang.String desc,
                                                          java.lang.String returnType)

Changes the return type of a method descriptor to the specified symbol

Parameters:

desc - descriptor to modify

returnType - new return type

Returns:

modified descriptor;

getSimpleName

public static java.lang.String getSimpleName(java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Returns the simple name of an annotation, mainly used for printing annotation names in error messages/user-facing strings

Parameters:

annotationType - annotation

Returns:

annotation's simple name

getSimpleName

public static java.lang.String getSimpleName(org.objectweb.asm.Type type)

Returns the simple name of a type representing a class

Parameters:

type - type

Returns:

annotation's simple name

getSimpleName

public static java.lang.String getSimpleName(org.objectweb.asm.tree.AnnotationNode annotation)

Returns the simple name of an annotation, mainly used for printing annotation names in error messages/user-facing strings

Parameters:

annotation - annotation node

Returns:

annotation's simple name

getSimpleName

public static java.lang.String getSimpleName(java.lang.String desc)

Returns the simple name from an object type descriptor (in L...; format)

Parameters:

desc - type descriptor

Returns:

"simple" name

isConstant

public static boolean isConstant(org.objectweb.asm.tree.AbstractInsnNode insn)

Gets whether the supplied instruction is a constant instruction (eg. ICONST_1)

Parameters:

insn - instruction to check

Returns:

true if the supplied instruction is a constant

getConstant

public static java.lang.Object getConstant(org.objectweb.asm.tree.AbstractInsnNode insn)

If the supplied instruction is a constant, returns the constant value from the instruction

Parameters:

insn - constant instruction to process

Returns:

the constant value or null if the value cannot be parsed (null constant is returned as Type.VOID_TYPE)

getConstantType

public static org.objectweb.asm.Type getConstantType(org.objectweb.asm.tree.AbstractInsnNode insn)

Returns the Type of a particular constant instruction's payload

Parameters:

insn - constant instruction

Returns:

type of constant or null if it cannot be parsed ( null constant is returned as Type.VOID_TYPE)

hasFlag

public static boolean hasFlag(org.objectweb.asm.tree.ClassNode classNode,
                              int flag)

Check whether the specified flag is set on the specified class

Parameters:

classNode - class node

flag - flag to check

Returns:

True if the specified flag is set in this method's access flags

hasFlag

public static boolean hasFlag(org.objectweb.asm.tree.MethodNode method,
                              int flag)

Check whether the specified flag is set on the specified method

Parameters:

method - method node

flag - flag to check

Returns:

True if the specified flag is set in this method's access flags

hasFlag

public static boolean hasFlag(org.objectweb.asm.tree.FieldNode field,
                              int flag)

Check whether the specified flag is set on the specified field

Parameters:

field - field node

flag - flag to check

Returns:

True if the specified flag is set in this field's access flags

compareFlags

public static boolean compareFlags(org.objectweb.asm.tree.MethodNode m1,
                                   org.objectweb.asm.tree.MethodNode m2,
                                   int flag)

Check whether the status of the specified flag matches on both of the supplied arguments.

Parameters:

m1 - First method

m2 - Second method

flag - flag to compare

Returns:

True if the flag is set to the same value on both members

compareFlags

public static boolean compareFlags(org.objectweb.asm.tree.FieldNode f1,
                                   org.objectweb.asm.tree.FieldNode f2,
                                   int flag)

Check whether the status of the specified flag matches on both of the supplied arguments.

Parameters:

f1 - First field

f2 - Second field

flag - flag to compare

Returns:

True if the flag is set to the same value on both members

isVirtual

public static boolean isVirtual(org.objectweb.asm.tree.MethodNode method)

Checks whether the supplied method is virtual. Specifically this method returns true if the method is non-static and has an access level greater than private.

Parameters:

method - Method to test

Returns:

true if virtual

getVisibility

public static Bytecode.Visibility getVisibility(org.objectweb.asm.tree.MethodNode method)

Returns the ordinal visibility of the supplied argument where a higher value equals higher "visibility":

0. Bytecode.Visibility.PRIVATE
1. Bytecode.Visibility.PROTECTED
2. Bytecode.Visibility.PACKAGE
3. Bytecode.Visibility.PUBLIC

Parameters:

method - method to get visibility for

Returns:

visibility level

getVisibility

public static Bytecode.Visibility getVisibility(org.objectweb.asm.tree.FieldNode field)

Returns the ordinal visibility of the supplied argument where a higher value equals higher "visibility":

0. Bytecode.Visibility.PRIVATE
1. Bytecode.Visibility.PROTECTED
2. Bytecode.Visibility.PACKAGE
3. Bytecode.Visibility.PUBLIC

Parameters:

field - field to get visibility for

Returns:

visibility level

setVisibility

public static void setVisibility(org.objectweb.asm.tree.MethodNode method,
                                 Bytecode.Visibility visibility)

Set the visibility of the specified member, leaving other access flags unchanged

Parameters:

method - method to change

visibility - new visibility

setVisibility

public static void setVisibility(org.objectweb.asm.tree.FieldNode field,
                                 Bytecode.Visibility visibility)

Set the visibility of the specified member, leaving other access flags unchanged

Parameters:

field - field to change

visibility - new visibility

setVisibility

public static void setVisibility(org.objectweb.asm.tree.MethodNode method,
                                 int access)

Set the visibility of the specified member, leaving other access flags unchanged

Parameters:

method - method to change

access - new visibility

setVisibility

public static void setVisibility(org.objectweb.asm.tree.FieldNode field,
                                 int access)

Set the visibility of the specified member, leaving other access flags unchanged

Parameters:

field - field to change

access - new visibility

getMaxLineNumber

public static int getMaxLineNumber(org.objectweb.asm.tree.ClassNode classNode,
                                   int min,
                                   int pad)

Compute the largest line number found in the specified class

Parameters:

classNode - Class to inspect

min - minimum value to return

pad - amount to pad at the end of files

Returns:

computed max

getBoxingType

public static java.lang.String getBoxingType(org.objectweb.asm.Type type)

Get the boxing type name for the specified type, if it is a primitive. For non-primitive types, null is returned

Parameters:

type - type to box

Returns:

boxing type or null

getUnboxingMethod

public static java.lang.String getUnboxingMethod(org.objectweb.asm.Type type)

Get the unboxing method name for the specified primitive type's corresponding reference type. For example, if the type passed in is int, then the return value will be intValue. Returns null for non-primitive types.

Parameters:

type - primitive type to get unboxing method for

Returns:

unboxing method name or null

compareBridgeMethods

public static void compareBridgeMethods(org.objectweb.asm.tree.MethodNode a,
                                        org.objectweb.asm.tree.MethodNode b)

Compares two synthetic bridge methods and throws an exception if they are not compatible.

Parameters:

a - Incumbent method

b - Incoming method

merge

public static void merge(org.objectweb.asm.tree.ClassNode source,
                         org.objectweb.asm.tree.ClassNode dest)

Perform a naïve merge of ClassNode members onto a target ClassNode

Parameters:

source - Source ClassNode to merge from

dest - Destination ClassNode to merge to

replace

public static void replace(org.objectweb.asm.tree.ClassNode source,
                           org.objectweb.asm.tree.ClassNode dest)

Replace all values in a target ClassNode with values from the Source

Parameters:

source - Source ClassNode to merge from

dest - Destination ClassNode to merge to