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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 part of ssa; | 5 part of ssa; |
6 | 6 |
7 class SsaCodeGeneratorTask extends CompilerTask { | 7 class SsaCodeGeneratorTask extends CompilerTask { |
8 | 8 |
9 final JavaScriptBackend backend; | 9 final JavaScriptBackend backend; |
10 | 10 |
11 SsaCodeGeneratorTask(JavaScriptBackend backend) | 11 SsaCodeGeneratorTask(JavaScriptBackend backend) |
12 : this.backend = backend, | 12 : this.backend = backend, |
13 super(backend.compiler); | 13 super(backend.compiler); |
14 String get name => 'SSA code generator'; | 14 String get name => 'SSA code generator'; |
15 NativeEmitter get nativeEmitter => backend.emitter.nativeEmitter; | 15 NativeEmitter get nativeEmitter => backend.emitter.nativeEmitter; |
16 | 16 |
17 | 17 |
18 js.Node attachPosition(js.Node node, Element element) { | 18 js.Node attachPosition(js.Node node, Element element) { |
19 // TODO(sra): Attaching positions might be cleaner if the source position | 19 // TODO(sra): Attaching positions might be cleaner if the source position |
20 // was on a wrapping node. | 20 // was on a wrapping node. |
21 SourceFile sourceFile = sourceFileOfElement(element); | 21 SourceFile sourceFile = sourceFileOfElement(element); |
22 Node expression = element.implementation.parseNode(backend.compiler); | 22 if (element.hasIrNode(compiler)) { |
23 Token beginToken; | 23 IrFunction function = element.irNode(compiler); |
24 Token endToken; | 24 node.sourcePosition = new OffsetSourceFileLocation( |
25 if (expression == null) { | 25 sourceFile, function.offset, function.sourceName); |
26 // Synthesized node. Use the enclosing element for the location. | 26 node.endSourcePosition = new OffsetSourceFileLocation( |
27 beginToken = endToken = element.position(); | 27 sourceFile, function.endOffset); |
28 } else { | 28 } else { |
29 beginToken = expression.getBeginToken(); | 29 Node expression = element.implementation.parseNode(backend.compiler); |
30 endToken = expression.getEndToken(); | 30 Token beginToken; |
31 } | 31 Token endToken; |
32 // TODO(podivilov): find the right sourceFile here and remove offset checks | 32 if (expression == null) { |
33 // below. | 33 // Synthesized node. Use the enclosing element for the location. |
34 if (beginToken.charOffset < sourceFile.length) { | 34 beginToken = endToken = element.position(); |
35 node.sourcePosition = new SourceFileLocation(sourceFile, beginToken); | 35 } else { |
36 } | 36 beginToken = expression.getBeginToken(); |
37 if (endToken.charOffset < sourceFile.length) { | 37 endToken = expression.getEndToken(); |
38 node.endSourcePosition = new SourceFileLocation(sourceFile, endToken); | 38 } |
39 // TODO(podivilov): find the right sourceFile here and remove offset check s | |
ngeoffray
2013/11/20 14:55:27
line too long.
lukas
2013/11/21 12:20:21
Done.
| |
40 // below. | |
41 if (beginToken.charOffset < sourceFile.length) { | |
42 node.sourcePosition = new TokenSourceFileLocation(sourceFile, beginToken ); | |
ngeoffray
2013/11/20 14:55:27
ditto
lukas
2013/11/21 12:20:21
Done.
| |
43 } | |
44 if (endToken.charOffset < sourceFile.length) { | |
45 node.endSourcePosition = | |
46 new TokenSourceFileLocation(sourceFile, endToken); | |
47 } | |
39 } | 48 } |
40 return node; | 49 return node; |
41 } | 50 } |
42 | 51 |
43 SourceFile sourceFileOfElement(Element element) { | 52 SourceFile sourceFileOfElement(Element element) { |
44 // TODO(johnniwinther): remove the 'element.patch' hack. | 53 // TODO(johnniwinther): remove the 'element.patch' hack. |
45 FunctionElement functionElement = element.asFunctionElement(); | 54 FunctionElement functionElement = element.asFunctionElement(); |
46 if (functionElement != null && functionElement.patch != null) { | 55 if (functionElement != null && functionElement.patch != null) { |
47 element = functionElement.patch; | 56 element = functionElement.patch; |
48 } | 57 } |
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2581 if (left.isConstantNull() || right.isConstantNull() || | 2590 if (left.isConstantNull() || right.isConstantNull() || |
2582 (left.isPrimitive(compiler) && | 2591 (left.isPrimitive(compiler) && |
2583 left.instructionType == right.instructionType)) { | 2592 left.instructionType == right.instructionType)) { |
2584 return '=='; | 2593 return '=='; |
2585 } | 2594 } |
2586 return null; | 2595 return null; |
2587 } else { | 2596 } else { |
2588 return '==='; | 2597 return '==='; |
2589 } | 2598 } |
2590 } | 2599 } |
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