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comparison graal/com.oracle.truffle.object/src/com/oracle/truffle/object/LocationImpl.java @ 18795:e9cbe1618733

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Truffle: refactor size calculation in location allocator to visitor pattern
author Andreas Woess <andreas.woess@jku.at>
date Wed, 07 Jan 2015 15:11:38 +0100
parents 2c3666f44855
children
comparison
equal deleted inserted replaced
18794:e688e42b41e3 18795:e9cbe1618733
23 package com.oracle.truffle.object; 23 package com.oracle.truffle.object;
24 24
25 import com.oracle.truffle.api.object.*; 25 import com.oracle.truffle.api.object.*;
26 26
27 public abstract class LocationImpl extends Location { 27 public abstract class LocationImpl extends Location {
28
29 public interface EffectivelyFinalLocation<T extends Location> {
30 T toNonFinalLocation();
31 }
32
33 public interface TypedObjectLocation<T extends Location & ObjectLocation> extends ObjectLocation {
34 T toUntypedLocation();
35 }
36
37 public interface InternalLongLocation extends LongLocation {
38 void setLongInternal(DynamicObject store, long value);
39 }
40
41 public interface LocationVisitor {
42 void visitObjectField(int index, int count);
43
44 void visitObjectArray(int index, int count);
45
46 void visitPrimitiveField(int index, int count);
47
48 void visitPrimitiveArray(int index, int count);
49 }
50
28 @Override 51 @Override
29 public void set(DynamicObject store, Object value, Shape shape) throws IncompatibleLocationException, FinalLocationException { 52 public void set(DynamicObject store, Object value, Shape shape) throws IncompatibleLocationException, FinalLocationException {
30 setInternal(store, value); 53 setInternal(store, value);
31 } 54 }
32 55
49 } 72 }
50 73
51 @SuppressWarnings("unused") 74 @SuppressWarnings("unused")
52 protected boolean canStoreFinal(DynamicObject store, Object value) { 75 protected boolean canStoreFinal(DynamicObject store, Object value) {
53 return true; 76 return true;
54 }
55
56 public interface EffectivelyFinalLocation<T extends Location> {
57 T toNonFinalLocation();
58 }
59
60 public interface TypedObjectLocation<T extends Location & ObjectLocation> extends ObjectLocation {
61 T toUntypedLocation();
62 }
63
64 public interface InternalLongLocation extends LongLocation {
65 void setLongInternal(DynamicObject store, long value);
66 } 77 }
67 78
68 @Override 79 @Override
69 public boolean isFinal() { 80 public boolean isFinal() {
70 return false; 81 return false;
140 public int primitiveArrayCount() { 151 public int primitiveArrayCount() {
141 return 0; 152 return 0;
142 } 153 }
143 154
144 /** 155 /**
156 * Accept a visitor for location allocation for this and every nested location.
157 *
158 * @param locationVisitor visitor to be notified of every allocated slot in use by this location
159 */
160 public abstract void accept(LocationVisitor locationVisitor);
161
162 /**
145 * Boxed values need to be compared by value not by reference. 163 * Boxed values need to be compared by value not by reference.
146 * 164 *
147 * The first parameter should be the one with the more precise type information. 165 * The first parameter should be the one with the more precise type information.
148 * 166 *
149 * For sets to final locations, otherValue.equals(thisValue) seems more beneficial, since we 167 * For sets to final locations, otherValue.equals(thisValue) seems more beneficial, since we