public class MethodNode extends MethodVisitor
Modifier and Type | Field and Description |
---|---|
int |
access
The method's access flags (see
Opcodes ). |
Object |
annotationDefault
The default value of this annotation interface method.
|
List<Attribute> |
attrs
The non standard attributes of this method.
|
String |
desc
The method's descriptor (see
Type ). |
List<String> |
exceptions
The internal names of the method's exception classes (see
getInternalName ). |
InsnList |
instructions
The instructions of this method.
|
List<AnnotationNode> |
invisibleAnnotations
The runtime invisible annotations of this method.
|
List<AnnotationNode>[] |
invisibleParameterAnnotations
The runtime invisible parameter annotations of this method.
|
List<LocalVariableNode> |
localVariables
The local variables of this method.
|
int |
maxLocals
The maximum number of local variables of this method.
|
int |
maxStack
The maximum stack size of this method.
|
String |
name
The method's name.
|
String |
signature
The method's signature.
|
List<TryCatchBlockNode> |
tryCatchBlocks
The try catch blocks of this method.
|
List<AnnotationNode> |
visibleAnnotations
The runtime visible annotations of this method.
|
List<AnnotationNode>[] |
visibleParameterAnnotations
The runtime visible parameter annotations of this method.
|
api, mv
Constructor and Description |
---|
MethodNode()
Constructs an uninitialized
MethodNode . |
MethodNode(int api)
Constructs an uninitialized
MethodNode . |
MethodNode(int api,
int access,
String name,
String desc,
String signature,
String[] exceptions)
Constructs a new
MethodNode . |
MethodNode(int access,
String name,
String desc,
String signature,
String[] exceptions)
Constructs a new
MethodNode . |
Modifier and Type | Method and Description |
---|---|
void |
accept(ClassVisitor cv)
Makes the given class visitor visit this method.
|
void |
accept(MethodVisitor mv)
Makes the given method visitor visit this method.
|
void |
check(int api)
Checks that this method node is compatible with the given ASM API
version.
|
protected LabelNode |
getLabelNode(Label l)
Returns the LabelNode corresponding to the given Label.
|
AnnotationVisitor |
visitAnnotation(String desc,
boolean visible)
Visits an annotation of this method.
|
AnnotationVisitor |
visitAnnotationDefault()
Visits the default value of this annotation interface method.
|
void |
visitAttribute(Attribute attr)
Visits a non standard attribute of this method.
|
void |
visitCode()
Starts the visit of the method's code, if any (i.e.
|
void |
visitEnd()
Visits the end of the 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.
|
void |
visitIincInsn(int var,
int increment)
Visits an IINC instruction.
|
void |
visitInsn(int opcode)
Visits a zero operand instruction.
|
void |
visitIntInsn(int opcode,
int operand)
Visits an instruction with a single int operand.
|
void |
visitInvokeDynamicInsn(String name,
String desc,
Handle bsm,
Object... bsmArgs)
Visits an invokedynamic instruction.
|
void |
visitJumpInsn(int opcode,
Label label)
Visits a jump instruction.
|
void |
visitLabel(Label label)
Visits a label.
|
void |
visitLdcInsn(Object cst)
Visits a LDC instruction.
|
void |
visitLineNumber(int line,
Label start)
Visits a line number declaration.
|
void |
visitLocalVariable(String name,
String desc,
String signature,
Label start,
Label end,
int index)
Visits a local variable declaration.
|
void |
visitLookupSwitchInsn(Label dflt,
int[] keys,
Label[] labels)
Visits a LOOKUPSWITCH instruction.
|
void |
visitMaxs(int maxStack,
int maxLocals)
Visits the maximum stack size and the maximum number of local variables
of the method.
|
void |
visitMethodInsn(int opcode,
String owner,
String name,
String desc)
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.
|
void |
visitTableSwitchInsn(int min,
int max,
Label dflt,
Label... labels)
Visits a TABLESWITCH instruction.
|
void |
visitTryCatchBlock(Label start,
Label end,
Label handler,
String type)
Visits a try catch block.
|
void |
visitTypeInsn(int opcode,
String type)
Visits a type instruction.
|
void |
visitVarInsn(int opcode,
int var)
Visits a local variable instruction.
|
public int access
Opcodes
). This field also
indicates if the method is synthetic and/or deprecated.public String name
public String signature
public List<String> exceptions
getInternalName
). This list is a list of
String
objects.public List<AnnotationNode> visibleAnnotations
AnnotationNode
objects. May be null.public List<AnnotationNode> invisibleAnnotations
AnnotationNode
objects. May be null.public List<Attribute> attrs
Attribute
objects. May be null.public Object annotationDefault
public List<AnnotationNode>[] visibleParameterAnnotations
AnnotationNode
objects. May be null.public List<AnnotationNode>[] invisibleParameterAnnotations
AnnotationNode
objects. May be null.public InsnList instructions
AbstractInsnNode
objects.public List<TryCatchBlockNode> tryCatchBlocks
TryCatchBlockNode
objects.public int maxStack
public int maxLocals
public List<LocalVariableNode> localVariables
LocalVariableNode
objects. May be nullpublic MethodNode()
MethodNode
. Subclasses must not
use this constructor. Instead, they must use the
MethodNode(int)
version.public MethodNode(int api)
MethodNode
.api
- the ASM API version implemented by this visitor. Must be one
of Opcodes.ASM4
.public MethodNode(int access, String name, String desc, String signature, String[] exceptions)
MethodNode
. Subclasses must not use this
constructor. Instead, they must use the
MethodNode(int, int, String, String, String, String[])
version.access
- the method's access flags (see Opcodes
). This
parameter also indicates if the method is synthetic and/or
deprecated.name
- the method's name.desc
- the method's descriptor (see Type
).signature
- the method's signature. May be null.exceptions
- the internal names of the method's exception classes (see
getInternalName
). May be
null.public MethodNode(int api, int access, String name, String desc, String signature, String[] exceptions)
MethodNode
.api
- the ASM API version implemented by this visitor. Must be one
of Opcodes.ASM4
.access
- the method's access flags (see Opcodes
). This
parameter also indicates if the method is synthetic and/or
deprecated.name
- the method's name.desc
- the method's descriptor (see Type
).signature
- the method's signature. May be null.exceptions
- the internal names of the method's exception classes (see
getInternalName
). May be
null.public AnnotationVisitor visitAnnotationDefault()
MethodVisitor
visitAnnotationDefault
in class MethodVisitor
public AnnotationVisitor visitAnnotation(String desc, boolean visible)
MethodVisitor
visitAnnotation
in class MethodVisitor
desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible)
MethodVisitor
visitParameterAnnotation
in class MethodVisitor
parameter
- the parameter index.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.public void visitAttribute(Attribute attr)
MethodVisitor
visitAttribute
in class MethodVisitor
attr
- an attribute.public void visitCode()
MethodVisitor
visitCode
in class MethodVisitor
public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack)
MethodVisitor
V1_6
. 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.visitFrame
in class MethodVisitor
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.public void visitInsn(int opcode)
MethodVisitor
visitInsn
in class MethodVisitor
opcode
- the opcode of the instruction to be visited. This opcode is
either NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1,
ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1,
FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD,
LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD,
IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE,
SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1,
DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB,
IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM,
FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR,
IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D,
L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S,
LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN,
DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER,
or MONITOREXIT.public void visitIntInsn(int opcode, int operand)
MethodVisitor
visitIntInsn
in class MethodVisitor
opcode
- the opcode of the instruction to be visited. This opcode is
either BIPUSH, SIPUSH or NEWARRAY.operand
- the operand of the instruction to be visited.Opcodes.T_BOOLEAN
, Opcodes.T_CHAR
,
Opcodes.T_FLOAT
, Opcodes.T_DOUBLE
,
Opcodes.T_BYTE
, Opcodes.T_SHORT
,
Opcodes.T_INT
or Opcodes.T_LONG
.public void visitVarInsn(int opcode, int var)
MethodVisitor
visitVarInsn
in class MethodVisitor
opcode
- the opcode of the local variable instruction to be visited.
This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD,
ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET.var
- the operand of the instruction to be visited. This operand is
the index of a local variable.public void visitTypeInsn(int opcode, String type)
MethodVisitor
visitTypeInsn
in class MethodVisitor
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
).public void visitFieldInsn(int opcode, String owner, String name, String desc)
MethodVisitor
visitFieldInsn
in class MethodVisitor
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
).public void visitMethodInsn(int opcode, String owner, String name, String desc)
MethodVisitor
visitMethodInsn
in class MethodVisitor
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
).public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs)
MethodVisitor
visitInvokeDynamicInsn
in class MethodVisitor
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.public void visitJumpInsn(int opcode, Label label)
MethodVisitor
visitJumpInsn
in class MethodVisitor
opcode
- the opcode of the type instruction to be visited. This opcode
is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ,
IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE,
IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL.label
- the operand of the instruction to be visited. This operand is
a label that designates the instruction to which the jump
instruction may jump.public void visitLabel(Label label)
MethodVisitor
visitLabel
in class MethodVisitor
label
- a Label
object.public void visitLdcInsn(Object cst)
MethodVisitor
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 }
visitLdcInsn
in class MethodVisitor
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.public void visitIincInsn(int var, int increment)
MethodVisitor
visitIincInsn
in class MethodVisitor
var
- index of the local variable to be incremented.increment
- amount to increment the local variable by.public void visitTableSwitchInsn(int min, int max, Label dflt, Label... labels)
MethodVisitor
visitTableSwitchInsn
in class MethodVisitor
min
- the minimum key value.max
- the maximum key value.dflt
- beginning of the default handler block.labels
- beginnings of the handler blocks. labels[i] is the
beginning of the handler block for the min + i key.public void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels)
MethodVisitor
visitLookupSwitchInsn
in class MethodVisitor
dflt
- beginning of the default handler block.keys
- the values of the keys.labels
- beginnings of the handler blocks. labels[i] is the
beginning of the handler block for the keys[i] key.public void visitMultiANewArrayInsn(String desc, int dims)
MethodVisitor
visitMultiANewArrayInsn
in class MethodVisitor
desc
- an array type descriptor (see Type
).dims
- number of dimensions of the array to allocate.public void visitTryCatchBlock(Label start, Label end, Label handler, String type)
MethodVisitor
visitTryCatchBlock
in class MethodVisitor
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).public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index)
MethodVisitor
visitLocalVariable
in class MethodVisitor
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.public void visitLineNumber(int line, Label start)
MethodVisitor
visitLineNumber
in class MethodVisitor
line
- a line number. This number refers to the source file from
which the class was compiled.start
- the first instruction corresponding to this line number.public void visitMaxs(int maxStack, int maxLocals)
MethodVisitor
visitMaxs
in class MethodVisitor
maxStack
- maximum stack size of the method.maxLocals
- maximum number of local variables for the method.public void visitEnd()
MethodVisitor
visitEnd
in class MethodVisitor
protected LabelNode getLabelNode(Label l)
Label.info
field to store associations between labels and
label nodes.l
- a Label.public void check(int api)
api
- an ASM API version. Must be one of Opcodes.ASM4
.public void accept(ClassVisitor cv)
cv
- a class visitor.public void accept(MethodVisitor mv)
mv
- a method visitor.Copyright © 2018. All rights reserved.