1 cananian 1.1.2.1 // NAME.java, created Wed Jan 13 21:14:57 1999 by cananian
2 cananian 1.1.2.11 // Copyright (C) 1998 C. Scott Ananian <cananian@alumni.princeton.edu>
3 cananian 1.1.2.11 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 cananian 1.1.2.1 package harpoon.IR.Tree;
5 cananian 1.1.2.1
6 cananian 1.1.2.3 import harpoon.ClassFile.HCodeElement;
7 cananian 1.1.2.17 import harpoon.Temp.TempMap;
8 cananian 1.1.2.1 import harpoon.Temp.Label;
9 cananian 1.1.2.3 import harpoon.Util.Util;
10 cananian 1.1.2.1
11 cananian 1.1.2.1 /**
12 cananian 1.1.2.1 * <code>NAME</code> objects are expressions which stand for symbolic
13 pnkfelix 1.1.2.6 * constants. They usually correspond to some assembly language label
14 cananian 1.1.2.10 * in the code or data segment.
15 cananian 1.1.2.1 *
16 cananian 1.1.2.1 * @author C. Scott Ananian <cananian@alumni.princeton.edu>, based on
17 cananian 1.1.2.1 * <i>Modern Compiler Implementation in Java</i> by Andrew Appel.
18 cananian 1.4 * @version $Id: NAME.java,v 1.4 2002/04/10 03:05:45 cananian Exp $
19 cananian 1.1.2.1 */
20 cananian 1.1.2.12 public class NAME extends Exp implements harpoon.ClassFile.HDataElement {
21 cananian 1.1.2.1 /** The label which this NAME refers to. */
22 cananian 1.1.2.1 public final Label label;
23 cananian 1.1.2.1 /** Constructor. */
24 cananian 1.1.2.3 public NAME(TreeFactory tf, HCodeElement source,
25 cananian 1.1.2.3 Label label) {
26 cananian 1.1.2.16 super(tf, source, 0);
27 cananian 1.1.2.3 this.label=label;
28 cananian 1.3.2.1 assert label!=null;
29 cananian 1.1.2.3 }
30 duncan 1.1.2.14
31 duncan 1.1.2.7 public int kind() { return TreeKind.NAME; }
32 duncan 1.1.2.9
33 duncan 1.1.2.9 public Exp build(TreeFactory tf, ExpList kids) {
34 cananian 1.3.2.1 assert kids==null;
35 duncan 1.1.2.9 return new NAME(tf, this, label);
36 duncan 1.1.2.9 }
37 duncan 1.1.2.9
38 duncan 1.1.2.2 /** Accept a visitor */
39 cananian 1.1.2.13 public void accept(TreeVisitor v) { v.visit(this); }
40 duncan 1.1.2.4
41 cananian 1.1.2.17 public Tree rename(TreeFactory tf, TempMap tm, CloneCallback cb) {
42 cananian 1.1.2.18 return cb.callback(this, new NAME(tf, this, this.label), tm);
43 andyb 1.1.2.5 }
44 andyb 1.1.2.5
45 cananian 1.1.2.8 /** @return <code>Type.POINTER</code> */
46 cananian 1.1.2.8 public int type() { return POINTER; }
47 cananian 1.1.2.8
48 andyb 1.1.2.5 public String toString() {
49 andyb 1.1.2.5 return "NAME("+label+")";
50 duncan 1.1.2.4 }
51 cananian 1.1.2.1 }
52 cananian 1.2