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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 mirror_renamer; | 5 part of mirror_renamer; |
6 | 6 |
7 class MirrorRenamerImpl implements MirrorRenamer { | 7 class MirrorRenamerImpl implements MirrorRenamer { |
8 static const String MIRROR_HELPER_GET_NAME_FUNCTION = 'helperGetName'; | 8 static const String MIRROR_HELPER_GET_NAME_FUNCTION = 'helperGetName'; |
9 static final Uri DART_MIRROR_HELPER = | 9 static final Uri DART_MIRROR_HELPER = |
10 new Uri(scheme: 'dart', path: '_mirror_helper'); | 10 new Uri(scheme: 'dart', path: '_mirror_helper'); |
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33 * backend.mirrorHelperGetNameFunction which represents the helperGetName | 33 * backend.mirrorHelperGetNameFunction which represents the helperGetName |
34 * function in _mirror_helper. | 34 * function in _mirror_helper. |
35 */ | 35 */ |
36 FunctionExpression get getNameFunctionNode => getNameFunction.node; | 36 FunctionExpression get getNameFunctionNode => getNameFunction.node; |
37 VariableDefinitions get symbolsMapNode => symbolsMapVariable.node; | 37 VariableDefinitions get symbolsMapNode => symbolsMapVariable.node; |
38 Compiler compiler; | 38 Compiler compiler; |
39 DartBackend backend; | 39 DartBackend backend; |
40 | 40 |
41 MirrorRenamerImpl(this.compiler, this.backend, LibraryElement library) | 41 MirrorRenamerImpl(this.compiler, this.backend, LibraryElement library) |
42 : this.helperLibrary = library, | 42 : this.helperLibrary = library, |
43 getNameFunction = library.find( | 43 getNameFunction = |
44 MirrorRenamerImpl.MIRROR_HELPER_GET_NAME_FUNCTION), | 44 library.find(MirrorRenamerImpl.MIRROR_HELPER_GET_NAME_FUNCTION), |
45 symbolsMapVariable = library.find( | 45 symbolsMapVariable = |
46 MirrorRenamerImpl.MIRROR_HELPER_SYMBOLS_MAP_NAME); | 46 library.find(MirrorRenamerImpl.MIRROR_HELPER_SYMBOLS_MAP_NAME); |
47 | 47 |
48 bool isMirrorHelperLibrary(LibraryElement element) { | 48 bool isMirrorHelperLibrary(LibraryElement element) { |
49 return element == helperLibrary; | 49 return element == helperLibrary; |
50 } | 50 } |
51 | 51 |
52 void registerStaticSend(Element currentElement, Element target, Send node) { | 52 void registerStaticSend(Element currentElement, Element target, Send node) { |
53 if (target == compiler.mirrorSystemGetNameFunction && | 53 if (target == compiler.mirrorSystemGetNameFunction && |
54 currentElement.library != helperLibrary) { | 54 currentElement.library != helperLibrary) { |
55 // Access to `MirrorSystem.getName` that needs to be redirected to the | 55 // Access to `MirrorSystem.getName` that needs to be redirected to the |
56 // [getNameFunction]. | 56 // [getNameFunction]. |
57 mirrorSystemGetNameNodes.add(node); | 57 mirrorSystemGetNameNodes.add(node); |
58 } | 58 } |
59 } | 59 } |
60 | 60 |
61 /** | 61 /** |
62 * Adds a toplevel node to the output containing a map from the mangled | 62 * Adds a toplevel node to the output containing a map from the mangled |
63 * to the unmangled names and replaces calls to MirrorSystem.getName() | 63 * to the unmangled names and replaces calls to MirrorSystem.getName() |
64 * with calls to the corresponding wrapper from _mirror_helper which has | 64 * with calls to the corresponding wrapper from _mirror_helper which has |
65 * been added during resolution. [renames] is assumed to map nodes in user | 65 * been added during resolution. [renames] is assumed to map nodes in user |
66 * code to mangled names appearing in output code, and [topLevelNodes] should | 66 * code to mangled names appearing in output code, and [topLevelNodes] should |
67 * contain all the toplevel ast nodes that will be emitted in the output. | 67 * contain all the toplevel ast nodes that will be emitted in the output. |
68 */ | 68 */ |
69 void addRenames(Map<Node, String> renames, List<Node> topLevelNodes, | 69 void addRenames(Map<Node, String> renames, List<Node> topLevelNodes, |
70 PlaceholderCollector placeholderCollector) { | 70 PlaceholderCollector placeholderCollector) { |
71 // Right now we only support instances of MirrorSystem.getName, | 71 // Right now we only support instances of MirrorSystem.getName, |
72 // hence if there are no occurence of these we don't do anything. | 72 // hence if there are no occurence of these we don't do anything. |
73 if (mirrorSystemGetNameNodes.isEmpty) { | 73 if (mirrorSystemGetNameNodes.isEmpty) { |
74 return; | 74 return; |
75 } | 75 } |
76 | 76 |
77 Node parse(String text) { | 77 Node parse(String text) { |
78 Token tokens = compiler.scanner.tokenize(text); | 78 Token tokens = compiler.scanner.tokenize(text); |
79 return compiler.parser.parseCompilationUnit(tokens); | 79 return compiler.parser.parseCompilationUnit(tokens); |
80 } | 80 } |
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109 sb.writeCharCode(0); // Terminate the string with '0', see [StringScanner]. | 109 sb.writeCharCode(0); // Terminate the string with '0', see [StringScanner]. |
110 topLevelNodes.add(parse(sb.toString())); | 110 topLevelNodes.add(parse(sb.toString())); |
111 | 111 |
112 // Replace calls to Mirrorsystem.getName with calls to helper function. | 112 // Replace calls to Mirrorsystem.getName with calls to helper function. |
113 mirrorSystemGetNameNodes.forEach((node) { | 113 mirrorSystemGetNameNodes.forEach((node) { |
114 renames[node.selector] = renames[getNameFunctionNode.name]; | 114 renames[node.selector] = renames[getNameFunctionNode.name]; |
115 renames[node.receiver] = ''; | 115 renames[node.receiver] = ''; |
116 }); | 116 }); |
117 } | 117 } |
118 } | 118 } |
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