visitAnnotation
public AnnotationVisitor visitAnnotation(String desc,
boolean visible)
Visits an annotation of this method.
- visitAnnotation in interface MethodVisitor
- visitAnnotation in interface MethodAdapter
desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.
- a visitor to visit the annotation values, or null if
this visitor is not interested in visiting this annotation.
visitAnnotationDefault
public AnnotationVisitor visitAnnotationDefault()
Visits the default value of this annotation interface method.
- visitAnnotationDefault in interface MethodVisitor
- visitAnnotationDefault in interface MethodAdapter
- 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.
visitFieldInsn
public void visitFieldInsn(int opcode,
String owner,
String name,
String desc)
Visits a field instruction. A field instruction is an instruction that
loads or stores the value of a field of an object.
- visitFieldInsn in interface MethodVisitor
- visitFieldInsn in interface MethodAdapter
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
).
visitFrame
public void visitFrame(int type,
int nLocal,
Object[] local,
int nStack,
Object[] stack)
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 unconditionnal 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
.
Packed frames are basically
"deltas" from the state of the previous frame (very first frame is
implicitly defined by the method's parameters and access flags):
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
- visitFrame in interface LocalVariablesSorter
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.
visitLdcInsn
public void visitLdcInsn(Object cst)
Visits a LDC instruction.
- visitLdcInsn in interface MethodVisitor
- visitLdcInsn in interface MethodAdapter
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).
visitLocalVariable
public void visitLocalVariable(String name,
String desc,
String signature,
Label start,
Label end,
int index)
Visits a local variable declaration.
- visitLocalVariable in interface MethodVisitor
- visitLocalVariable in interface LocalVariablesSorter
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.
visitMethodInsn
public void visitMethodInsn(int opcode,
String owner,
String name,
String desc)
Visits a method instruction. A method instruction is an instruction that
invokes a method.
- visitMethodInsn in interface MethodVisitor
- visitMethodInsn in interface MethodAdapter
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
).
visitParameterAnnotation
public AnnotationVisitor visitParameterAnnotation(int parameter,
String desc,
boolean visible)
Visits an annotation of a parameter this method.
- visitParameterAnnotation in interface MethodVisitor
- visitParameterAnnotation in interface MethodAdapter
parameter
- the parameter index.desc
- the class descriptor of the annotation class.visible
- true if the annotation is visible at runtime.
- 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)
Visits a try catch block.
- visitTryCatchBlock in interface MethodVisitor
- visitTryCatchBlock in interface MethodAdapter
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).
visitTypeInsn
public void visitTypeInsn(int opcode,
String type)
Visits a type instruction. A type instruction is an instruction that
takes the internal name of a class as parameter.
- visitTypeInsn in interface MethodVisitor
- visitTypeInsn in interface MethodAdapter
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
).