public class ASMifierMethodVisitor extends ASMifierAbstractVisitor implements MethodVisitor
MethodVisitor
that prints the ASM code that generates the methods
it visits.name
buf, OPCODES, text, TYPES
Constructor and Description |
---|
ASMifierMethodVisitor()
Constructs a new
ASMifierMethodVisitor object. |
Modifier and Type | Method and Description |
---|---|
AnnotationVisitor |
visitAnnotationDefault()
Visits the default value of this annotation interface method.
|
void |
visitCode()
Starts the visit of the method's code, if any (i.e.
|
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 |
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.
|
visitAnnotation, visitAttribute, visitEnd
appendString, getDefaultAttributes, getText, print
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
visitAnnotation, visitAttribute, visitEnd
public ASMifierMethodVisitor()
ASMifierMethodVisitor
object.public AnnotationVisitor visitAnnotationDefault()
MethodVisitor
visitAnnotationDefault
in interface MethodVisitor
public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible)
MethodVisitor
visitParameterAnnotation
in interface MethodVisitor
parameter
- the parameter index.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.public void visitCode()
MethodVisitor
visitCode
in interface 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 interface 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 interface 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 interface 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 interface 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 interface 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 interface 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 interface 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 visitJumpInsn(int opcode, Label label)
MethodVisitor
visitJumpInsn
in interface 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 interface MethodVisitor
label
- a Label
object.public void visitLdcInsn(Object cst)
MethodVisitor
visitLdcInsn
in interface 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
(or a Type
for
.class constants, for classes whose version is 49.0 or
more).public void visitIincInsn(int var, int increment)
MethodVisitor
visitIincInsn
in interface 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 interface 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 interface 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 interface 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 interface 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 interface 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 interface 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 interface MethodVisitor
maxStack
- maximum stack size of the method.maxLocals
- maximum number of local variables for the method.Copyright © 2018. All rights reserved.