Class AbstractInsnNode

java.lang.Object
org.objectweb.asm.tree.AbstractInsnNode
Direct Known Subclasses:
FieldInsnNode, FrameNode, IincInsnNode, InsnNode, IntInsnNode, InvokeDynamicInsnNode, JumpInsnNode, LabelNode, LdcInsnNode, LineNumberNode, LookupSwitchInsnNode, MethodInsnNode, MultiANewArrayInsnNode, TableSwitchInsnNode, TypeInsnNode, VarInsnNode
public abstract class AbstractInsnNode extends Object
A node that represents a bytecode instruction. An instruction can appear at most once in at most one InsnList at a time.
Author:
Eric Bruneton

  • Field Details

  • Constructor Details

    • AbstractInsnNode

      protected AbstractInsnNode(int opcode)
      Constructs a new AbstractInsnNode.
      Parameters:
      opcode - the opcode of the instruction to be constructed.

  • Method Details

    • getOpcode

      public int getOpcode()
      Returns the opcode of this instruction.
      Returns:
      the opcode of this instruction, or -1 if this is not a JVM instruction (e.g. a label or a line number).

    • getType

      public abstract int getType()
      Returns the type of this instruction.
      Returns:
      the type of this instruction, i.e. one the constants defined in this class.

    • getPrevious

      public AbstractInsnNode getPrevious()
      Returns the previous instruction in the list to which this instruction belongs, if any.
      Returns:
      the previous instruction in the list to which this instruction belongs, if any. May be null.

    • getNext

      public AbstractInsnNode getNext()
      Returns the next instruction in the list to which this instruction belongs, if any.
      Returns:
      the next instruction in the list to which this instruction belongs, if any. May be null.

    • accept

      public abstract void accept(org.objectweb.asm.MethodVisitor methodVisitor)
      Makes the given method visitor visit this instruction.
      Parameters:
      methodVisitor - a method visitor.

    • acceptAnnotations

      protected final void acceptAnnotations(org.objectweb.asm.MethodVisitor methodVisitor)
      Makes the given visitor visit the annotations of this instruction.
      Parameters:
      methodVisitor - a method visitor.

    • clone

      public abstract AbstractInsnNode clone(Map<LabelNode, LabelNode> clonedLabels)
      Returns a copy of this instruction.
      Parameters:
      clonedLabels - a map from LabelNodes to cloned LabelNodes.
      Returns:
      a copy of this instruction. The returned instruction does not belong to any InsnList.

    • cloneAnnotations

      protected final AbstractInsnNode cloneAnnotations(AbstractInsnNode insnNode)
      Clones the annotations of the given instruction into this instruction.
      Parameters:
      insnNode - the source instruction.
      Returns:
      this instruction.