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java.lang.Objectorg.objectweb.asm.tree.AbstractInsnNode
org.objectweb.asm.tree.FrameNode
public class FrameNode
A node that represents a stack map frame. These nodes are pseudo instruction
nodes in order to be inserted in an instruction list. In fact these nodes
must(*) be inserted just before any instruction node 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 stack map frame 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.
| Field Summary | |
|---|---|
List |
local
The types of the local variables of this stack map frame. |
List |
stack
The types of the operand stack elements of this stack map frame. |
int |
type
The type of this frame. |
| Fields inherited from class org.objectweb.asm.tree.AbstractInsnNode |
|---|
FIELD_INSN, FRAME, IINC_INSN, INSN, INT_INSN, JUMP_INSN, LABEL, LDC_INSN, LINE, LOOKUPSWITCH_INSN, METHOD_INSN, MULTIANEWARRAY_INSN, opcode, TABLESWITCH_INSN, TYPE_INSN, VAR_INSN |
| Constructor Summary | |
|---|---|
FrameNode(int type,
int nLocal,
Object[] local,
int nStack,
Object[] stack)
Constructs a new FrameNode. |
|
| Method Summary | |
|---|---|
void |
accept(MethodVisitor mv)
Makes the given visitor visit this stack map frame. |
AbstractInsnNode |
clone(Map labels)
Returns a copy of this instruction. |
int |
getType()
Returns the type of this instruction. |
| Methods inherited from class org.objectweb.asm.tree.AbstractInsnNode |
|---|
getNext, getOpcode, getPrevious |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public int type
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.
public List local
MethodVisitor).
public List stack
MethodVisitor).
| Constructor Detail |
|---|
public FrameNode(int type,
int nLocal,
Object[] local,
int nStack,
Object[] stack)
FrameNode.
type - the type of this 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 - number of local variables of this stack map frame.local - the types of the local variables of this stack map frame.
Elements of this list can be Integer, String or LabelNode objects
(for primitive, reference and uninitialized types respectively -
see MethodVisitor).nStack - number of operand stack elements of this stack map frame.stack - the types of the operand stack elements of this stack map
frame. Elements of this list can be Integer, String or LabelNode
objects (for primitive, reference and uninitialized types
respectively - see MethodVisitor).| Method Detail |
|---|
public int getType()
AbstractInsnNode
getType in class AbstractInsnNodepublic void accept(MethodVisitor mv)
accept in class AbstractInsnNodemv - a method visitor.public AbstractInsnNode clone(Map labels)
AbstractInsnNode
clone in class AbstractInsnNodelabels - a map from LabelNodes to cloned LabelNodes.
InsnList.
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