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/*
* This file is available under and governed by the GNU General Public
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* file:
*
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2011 INRIA, France Telecom
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package jdk.internal.org.objectweb.asm.tree;
import java.util.Map;
import jdk.internal.org.objectweb.asm.MethodVisitor;
A node that represents a jump instruction. A jump instruction is an
instruction that may jump to another instruction.
Author: Eric Bruneton
/**
* A node that represents a jump instruction. A jump instruction is an
* instruction that may jump to another instruction.
*
* @author Eric Bruneton
*/
public class JumpInsnNode extends AbstractInsnNode {
The operand of this instruction. This operand is a label that designates
the instruction to which this instruction may jump.
/**
* The operand of this instruction. This operand is a label that designates
* the instruction to which this instruction may jump.
*/
public LabelNode label;
Constructs a new JumpInsnNode. Params: - opcode –
the opcode of the type instruction to be constructed. This
opcode must be 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 constructed. This operand
is a label that designates the instruction to which the jump
instruction may jump.
/**
* Constructs a new {@link JumpInsnNode}.
*
* @param opcode
* the opcode of the type instruction to be constructed. This
* opcode must be 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.
* @param label
* the operand of the instruction to be constructed. This operand
* is a label that designates the instruction to which the jump
* instruction may jump.
*/
public JumpInsnNode(final int opcode, final LabelNode label) {
super(opcode);
this.label = label;
}
Sets the opcode of this instruction.
Params: - opcode –
the new instruction opcode. This opcode must be 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.
/**
* Sets the opcode of this instruction.
*
* @param opcode
* the new instruction opcode. This opcode must be 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.
*/
public void setOpcode(final int opcode) {
this.opcode = opcode;
}
@Override
public int getType() {
return JUMP_INSN;
}
@Override
public void accept(final MethodVisitor mv) {
mv.visitJumpInsn(opcode, label.getLabel());
acceptAnnotations(mv);
}
@Override
public AbstractInsnNode clone(final Map<LabelNode, LabelNode> labels) {
return new JumpInsnNode(opcode, clone(label, labels))
.cloneAnnotations(this);
}
}