Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/FrameSlotTypeSpecializationTest.java @ 7530:5e3d1a68664e
applied mx eclipseformat to all Java files
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 23 Jan 2013 16:34:57 +0100 |
parents | a4b84ba6dc2e |
children | 07f8d136a05e |
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7529:4a11124a3563 | 7530:5e3d1a68664e |
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26 | 26 |
27 import com.oracle.truffle.api.*; | 27 import com.oracle.truffle.api.*; |
28 import com.oracle.truffle.api.frame.*; | 28 import com.oracle.truffle.api.frame.*; |
29 import com.oracle.truffle.api.nodes.*; | 29 import com.oracle.truffle.api.nodes.*; |
30 | 30 |
31 | |
32 /** | 31 /** |
33 * <h3>Specializing Frame Slot Types</h3> | 32 * <h3>Specializing Frame Slot Types</h3> |
34 * | 33 * |
35 * <p> | 34 * <p> |
36 * Dynamically typed languages can speculate on the type of a frame slot and only fall back at run time to a more | 35 * Dynamically typed languages can speculate on the type of a frame slot and only fall back at run |
37 * generic type if necessary. The new type of a frame slot can be set using the {@link FrameSlot#setType(Class)} method. | 36 * time to a more generic type if necessary. The new type of a frame slot can be set using the |
38 * It is the responsibility of the language implementor to update the content of currently active frames (using | 37 * {@link FrameSlot#setType(Class)} method. It is the responsibility of the language implementor to |
39 * {@link Frame#updateToLatestVersion()}). Also, nodes that depend a specific type of a frame slot must be replaced. | 38 * update the content of currently active frames (using {@link Frame#updateToLatestVersion()}). |
40 * Such node can register a listener that implements {@link FrameSlotTypeListener} using | 39 * Also, nodes that depend a specific type of a frame slot must be replaced. Such node can register |
41 * {@link FrameSlot#registerOneShotTypeListener(FrameSlotTypeListener)}. The event of a type change on the frame slot | 40 * a listener that implements {@link FrameSlotTypeListener} using |
42 * will fire only once for the next upcoming change. | 41 * {@link FrameSlot#registerOneShotTypeListener(FrameSlotTypeListener)}. The event of a type change |
42 * on the frame slot will fire only once for the next upcoming change. | |
43 * </p> | 43 * </p> |
44 * | 44 * |
45 * <p> | 45 * <p> |
46 * The next part of the Truffle API introduction is at {@link com.oracle.truffle.api.test.ReturnTypeSpecializationTest}. | 46 * The next part of the Truffle API introduction is at |
47 * {@link com.oracle.truffle.api.test.ReturnTypeSpecializationTest}. | |
47 * </p> | 48 * </p> |
48 */ | 49 */ |
49 public class FrameSlotTypeSpecializationTest { | 50 public class FrameSlotTypeSpecializationTest { |
50 | 51 |
51 @Test | 52 @Test |
77 return right.execute(frame); | 78 return right.execute(frame); |
78 } | 79 } |
79 } | 80 } |
80 | 81 |
81 abstract class TestChildNode extends Node { | 82 abstract class TestChildNode extends Node { |
83 | |
82 abstract Object execute(VirtualFrame frame); | 84 abstract Object execute(VirtualFrame frame); |
83 } | 85 } |
84 | 86 |
85 abstract class FrameSlotNode extends TestChildNode { | 87 abstract class FrameSlotNode extends TestChildNode { |
88 | |
86 protected final FrameSlot slot; | 89 protected final FrameSlot slot; |
87 | 90 |
88 public FrameSlotNode(FrameSlot slot) { | 91 public FrameSlotNode(FrameSlot slot) { |
89 this.slot = slot; | 92 this.slot = slot; |
90 } | 93 } |
98 } | 101 } |
99 | 102 |
100 } | 103 } |
101 | 104 |
102 class IntAssignLocal extends FrameSlotNode implements FrameSlotTypeListener { | 105 class IntAssignLocal extends FrameSlotNode implements FrameSlotTypeListener { |
106 | |
103 @Child private TestChildNode value; | 107 @Child private TestChildNode value; |
104 | 108 |
105 IntAssignLocal(FrameSlot slot, TestChildNode value) { | 109 IntAssignLocal(FrameSlot slot, TestChildNode value) { |
106 super(slot); | 110 super(slot); |
107 this.value = adoptChild(value); | 111 this.value = adoptChild(value); |
120 } | 124 } |
121 return null; | 125 return null; |
122 } | 126 } |
123 | 127 |
124 @Override | 128 @Override |
125 public void typeChanged(FrameSlot changedSlot, Class< ? > oldType) { | 129 public void typeChanged(FrameSlot changedSlot, Class<?> oldType) { |
126 if (changedSlot.getType() == Object.class) { | 130 if (changedSlot.getType() == Object.class) { |
127 this.replace(new ObjectAssignLocal(changedSlot, value)); | 131 this.replace(new ObjectAssignLocal(changedSlot, value)); |
128 } | 132 } |
129 } | 133 } |
130 } | 134 } |
131 | 135 |
132 class ObjectAssignLocal extends FrameSlotNode { | 136 class ObjectAssignLocal extends FrameSlotNode { |
137 | |
133 @Child private TestChildNode value; | 138 @Child private TestChildNode value; |
134 | 139 |
135 ObjectAssignLocal(FrameSlot slot, TestChildNode value) { | 140 ObjectAssignLocal(FrameSlot slot, TestChildNode value) { |
136 super(slot); | 141 super(slot); |
137 this.value = adoptChild(value); | 142 this.value = adoptChild(value); |
144 return null; | 149 return null; |
145 } | 150 } |
146 } | 151 } |
147 | 152 |
148 class IntReadLocal extends FrameSlotNode implements FrameSlotTypeListener { | 153 class IntReadLocal extends FrameSlotNode implements FrameSlotTypeListener { |
154 | |
149 IntReadLocal(FrameSlot slot) { | 155 IntReadLocal(FrameSlot slot) { |
150 super(slot); | 156 super(slot); |
151 slot.registerOneShotTypeListener(this); | 157 slot.registerOneShotTypeListener(this); |
152 } | 158 } |
153 | 159 |
155 Object execute(VirtualFrame frame) { | 161 Object execute(VirtualFrame frame) { |
156 return frame.getInt(slot); | 162 return frame.getInt(slot); |
157 } | 163 } |
158 | 164 |
159 @Override | 165 @Override |
160 public void typeChanged(FrameSlot changedSlot, Class< ? > oldType) { | 166 public void typeChanged(FrameSlot changedSlot, Class<?> oldType) { |
161 if (changedSlot.getType() == Object.class) { | 167 if (changedSlot.getType() == Object.class) { |
162 this.replace(new ObjectReadLocal(changedSlot)); | 168 this.replace(new ObjectReadLocal(changedSlot)); |
163 } | 169 } |
164 } | 170 } |
165 } | 171 } |
166 | 172 |
167 class ObjectReadLocal extends FrameSlotNode { | 173 class ObjectReadLocal extends FrameSlotNode { |
174 | |
168 ObjectReadLocal(FrameSlot slot) { | 175 ObjectReadLocal(FrameSlot slot) { |
169 super(slot); | 176 super(slot); |
170 } | 177 } |
171 | 178 |
172 @Override | 179 @Override |
173 Object execute(VirtualFrame frame) { | 180 Object execute(VirtualFrame frame) { |
174 return frame.getObject(slot); | 181 return frame.getObject(slot); |
175 } | 182 } |
176 } | 183 } |
177 } | 184 } |
178 |