Package org.springframework.asm

Class Label

  • public class Label
extends Object
    A label represents a position in the bytecode of a method. Labels are used for jump, goto, and switch instructions, and for try catch blocks. A label designates the instruction that is just after. Note however that there can be other elements between a label and the instruction it designates (such as other labels, stack map frames, line numbers, etc.).
    Author:
    Eric Bruneton

    • Field Detail

      • info

        public Object info
        Field used to associate user information to a label. Warning: this field is used by the ASM tree package. In order to use it with the ASM tree package you must override the org.objectweb.asm.tree.MethodNode#getLabelNode method.

    • Constructor Detail

      • Label

        public Label()
        Constructs a new label.

    • Method Detail

      • getOffset

        public int getOffset()
        Returns the offset corresponding to this label. This offset is computed from the start of the method's bytecode. This method is intended for Attribute sub classes, and is normally not needed by class generators or adapters.
        Returns:
        the offset corresponding to this label.
        Throws:
        IllegalStateException - if this label is not resolved yet.

      • toString

        public String toString()
        Returns a string representation of this label.
        Overrides:
        toString in class Object
        Returns:
        a string representation of this label.