Class LocalVariableTable

  • All Implemented Interfaces:
    Cloneable, Node

    public class LocalVariableTable
    extends Attribute
    This class represents colection of local variables in a method. This attribute is contained in the Code attribute.
    See Also:
    Code, LocalVariable
    • Constructor Detail

      • LocalVariableTable

        public LocalVariableTable​(LocalVariableTable c)
        Initialize from another object. Note that both objects use the same references (shallow copy). Use copy() for a physical copy.
      • LocalVariableTable

        public LocalVariableTable​(int nameIndex,
                                  int length,
                                  LocalVariable[] localVariableTable,
                                  ConstantPool constantPool)
        Parameters:
        nameIndex - Index in constant pool to `LocalVariableTable'
        length - Content length in bytes
        localVariableTable - Table of local variables
        constantPool - Array of constants
    • Method Detail

      • accept

        public void accept​(Visitor v)
        Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
        Specified by:
        accept in interface Node
        Specified by:
        accept in class Attribute
        Parameters:
        v - Visitor object
      • getLocalVariableTable

        public final LocalVariable[] getLocalVariableTable()
        Returns:
        Array of local variables of method.
      • getLocalVariable

        @Deprecated
        public final LocalVariable getLocalVariable​(int index)
        Deprecated.
        since 5.2 because multiple variables can share the same slot, use getLocalVariable(int index, int pc) instead.
        Parameters:
        index - the variable slot
        Returns:
        the first LocalVariable that matches the slot or null if not found
      • getLocalVariable

        public final LocalVariable getLocalVariable​(int index,
                                                    int pc)
        Parameters:
        index - the variable slot
        pc - the current pc that this variable is alive
        Returns:
        the LocalVariable that matches or null if not found
      • setLocalVariableTable

        public final void setLocalVariableTable​(LocalVariable[] local_variable_table)
      • toString

        public final String toString()
        Overrides:
        toString in class Attribute
        Returns:
        String representation.
      • getTableLength

        public final int getTableLength()