1 cananian 1.1.2.1 // Code.java, created Fri Jan 22 17:00:41 1999 by cananian
2 cananian 1.1.2.1 // Copyright (C) 1999 C. Scott Ananian <cananian@alumni.princeton.edu>
3 cananian 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 cananian 1.1.2.1 package harpoon.IR.LowQuad;
5 cananian 1.1.2.1
6 cananian 1.1.2.12 import harpoon.Analysis.Maps.Derivation;
7 cananian 1.1.2.12 import harpoon.Analysis.Maps.Derivation.DList;
8 cananian 1.1.2.2 import harpoon.Analysis.Maps.TypeMap;
9 duncan 1.1.2.8 import harpoon.ClassFile.HClass;
10 cananian 1.1.2.15 import harpoon.ClassFile.HCodeAndMaps;
11 cananian 1.1.2.7 import harpoon.ClassFile.HCodeElement;
12 cananian 1.1.2.1 import harpoon.ClassFile.HMethod;
13 cananian 1.1.2.1 import harpoon.IR.Quads.Quad;
14 cananian 1.1.2.1 import harpoon.Temp.Temp;
15 cananian 1.1.2.1 import harpoon.Temp.TempFactory;
16 cananian 1.1.2.1
17 cananian 1.1.2.1 import java.util.Hashtable;
18 cananian 1.1.2.15 import java.util.Iterator;
19 cananian 1.1.2.1 /**
20 cananian 1.1.2.10 * <code>LowQuad.Code</code> is an abstract superclass of codeviews
21 cananian 1.1.2.10 * using the components in <code>IR.LowQuad</code>. It implements
22 cananian 1.1.2.10 * shared methods for the various codeviews using <code>LowQuad</code>s.
23 cananian 1.1.2.1 *
24 cananian 1.1.2.1 * @author C. Scott Ananian <cananian@alumni.princeton.edu>
25 cananian 1.3 * @version $Id: Code.java,v 1.3 2003/03/10 22:19:13 cananian Exp $
26 cananian 1.1.2.1 */
27 duncan 1.1.2.5 public abstract class Code extends harpoon.IR.Quads.Code
28 cananian 1.1.2.1 {
29 cananian 1.1.2.1 /** Make the quad factory. */
30 cananian 1.1.2.1 protected harpoon.IR.Quads.QuadFactory newQF(final HMethod parent) {
31 cananian 1.1.2.1 final String scope = parent.getDeclaringClass().getName() + "." +
32 cananian 1.1.2.1 parent.getName() + parent.getDescriptor() + "/" + getName();
33 cananian 1.1.2.13 abstract class SerializableLowQuadFactory extends LowQuadFactory
34 cananian 1.1.2.13 implements java.io.Serializable { /* only declare inheritance */ }
35 cananian 1.1.2.13 return new SerializableLowQuadFactory() {
36 cananian 1.1.2.1 private final TempFactory tf = Temp.tempFactory(scope);
37 cananian 1.1.2.1 private int id=0;
38 cananian 1.1.2.1 public TempFactory tempFactory() { return tf; }
39 cananian 1.1.2.1 public harpoon.IR.Quads.Code getParent() { return Code.this; }
40 cananian 1.1.2.1 public synchronized int getUniqueID() { return id++; }
41 cananian 1.1.2.1 };
42 cananian 1.1.2.1 }
43 duncan 1.1.2.5
44 duncan 1.1.2.4 protected Code(HMethod parent, Quad quads) {
45 cananian 1.1.2.1 super(parent, quads);
46 cananian 1.1.2.1 }
47 cananian 1.1.2.1
48 cananian 1.1.2.14 // Provide access to derivation information.
49 cananian 1.3 private Derivation<Quad> m_derivation = null;
50 cananian 1.1.2.14 /** Return a <code>Derivation</code> object for this
51 cananian 1.1.2.14 * <code>LowQuad.Code</code>. */
52 cananian 1.3 public Derivation<Quad> getDerivation() { return m_derivation; }
53 cananian 1.1.2.14 /** Allow subclasses to initialize the <code>Derivation</code> for
54 cananian 1.1.2.14 * this <code>LowQuad.Code</code>. */
55 cananian 1.3 protected void setDerivation(Derivation<Quad> deriv){ m_derivation=deriv; }
56 cananian 1.1.2.15
57 cananian 1.1.2.15 // clone derivation information, too.
58 cananian 1.3 protected HCodeAndMaps<Quad> cloneHelper(harpoon.IR.Quads.Code _this,
59 cananian 1.3 harpoon.IR.Quads.Code qc) {
60 cananian 1.1.2.15 final HCodeAndMaps hcam = super.cloneHelper(_this, qc);
61 cananian 1.1.2.15 if (_this.getDerivation()!=null)
62 cananian 1.1.2.15 ((Code)qc).setDerivation(cloneDerivation(hcam));
63 cananian 1.1.2.15 return hcam;
64 cananian 1.1.2.15 }
65 cananian 1.3 private static Derivation<Quad> cloneDerivation(HCodeAndMaps<Quad> hcam) {
66 cananian 1.1.2.15 Code ocode = (Code) hcam.ancestorHCode();
67 cananian 1.3 Derivation<Quad> oderiv = ocode.getDerivation();
68 cananian 1.3 DerivationMap<Quad> nderiv = new DerivationMap<Quad>();
69 cananian 1.3 for (Iterator<Quad> it=ocode.getElementsI(); it.hasNext(); ) {
70 cananian 1.3 Quad ohce = it.next();
71 cananian 1.3 Quad nhce = hcam.elementMap().get(ohce);
72 cananian 1.3 nderiv.transfer(nhce, ohce, ohce.def(),
73 cananian 1.1.2.15 hcam.tempMap(), oderiv);
74 cananian 1.1.2.15 }
75 cananian 1.1.2.15 return nderiv;
76 cananian 1.1.2.15 }
77 cananian 1.2 }