code: // ASM: a very small and fast Java bytecode manipulation framework
  // Copyright (c) 2000-2011 INRIA, France Telecom
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  package clojure.asm;
  
  /**
   * Information about the input stack map frame at the "current" instruction of a method. This is
   * implemented as a Frame subclass for a "basic block" containing only one instruction.
   *
   * @author Eric Bruneton
   */
  final class CurrentFrame extends Frame {
  
    CurrentFrame(final Label owner) {
      super(owner);
    }
  
    /**
     * Sets this CurrentFrame to the input stack map frame of the next "current" instruction, i.e. the
     * instruction just after the given one. It is assumed that the value of this object when this
     * method is called is the stack map frame status just before the given instruction is executed.
     */
    @Override
    void execute(
        final int opcode, final int arg, final Symbol symbolArg, final SymbolTable symbolTable) {
      super.execute(opcode, arg, symbolArg, symbolTable);
      Frame successor = new Frame(null);
      merge(symbolTable, successor, 0);
      copyFrom(successor);
    }
  }
  