label.java

来自「编译原理大作业---tiger编译器 包括semant,translate,m」· Java 代码 · 共 35 行

package Temp;
import Symbol.Symbol;

/**
 * A Label represents an address in assembly language.
 */

public class Label  {
   private String name;
   private static int count;

  /**
   * a printable representation of the label, for use in assembly
   * language output.
   */
   public String toString() { return name; }

  /**
   * Makes a new label that prints as "name".
   * Warning: avoid repeated calls to <tt>new Label(s)</tt> with
   * the same name <tt>s</tt>.
   */
   public Label(String n) { name = n; }

  /**
   * Makes a new label with an arbitrary name.
   */
   public Label() { this("L" + count++); }

  /**
   * Makes a new label whose name is the same as a symbol.
   */
   public Label(Symbol s) { this(s.toString()); }
}