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Side by Side Diff: dart/sdk/lib/_internal/compiler/implementation/js_emitter/code_emitter_task.dart

Issue 298153002: Version 1.4.1 (Closed) Base URL: http://dart.googlecode.com/svn/branches/1.4/
Patch Set: Created 6 years, 6 months ago
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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 dart2js.js_emitter; 5 part of dart2js.js_emitter;
6 6
7 /** 7 /**
8 * Generates the code for all used classes in the program. Static fields (even 8 * Generates the code for all used classes in the program. Static fields (even
9 * in classes) are ignored, since they can be treated as non-class elements. 9 * in classes) are ignored, since they can be treated as non-class elements.
10 * 10 *
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128 => r'$finishClasses'; 128 => r'$finishClasses';
129 String get finishClassesName 129 String get finishClassesName
130 => '${namer.isolateName}.$finishClassesProperty'; 130 => '${namer.isolateName}.$finishClassesProperty';
131 String get finishIsolateConstructorName 131 String get finishIsolateConstructorName
132 => '${namer.isolateName}.\$finishIsolateConstructor'; 132 => '${namer.isolateName}.\$finishIsolateConstructor';
133 String get isolatePropertiesName 133 String get isolatePropertiesName
134 => '${namer.isolateName}.${namer.isolatePropertiesName}'; 134 => '${namer.isolateName}.${namer.isolatePropertiesName}';
135 String get lazyInitializerName 135 String get lazyInitializerName
136 => '${namer.isolateName}.\$lazy'; 136 => '${namer.isolateName}.\$lazy';
137 String get initName => 'init'; 137 String get initName => 'init';
138 String get makeConstListProperty
139 => namer.getMappedInstanceName('makeConstantList');
138 140
139 jsAst.FunctionDeclaration get generateAccessorFunction { 141 jsAst.FunctionDeclaration get generateAccessorFunction {
140 const RANGE1_SIZE = RANGE1_LAST - RANGE1_FIRST + 1; 142 const RANGE1_SIZE = RANGE1_LAST - RANGE1_FIRST + 1;
141 const RANGE2_SIZE = RANGE2_LAST - RANGE2_FIRST + 1; 143 const RANGE2_SIZE = RANGE2_LAST - RANGE2_FIRST + 1;
142 const RANGE1_ADJUST = - (FIRST_FIELD_CODE - RANGE1_FIRST); 144 const RANGE1_ADJUST = - (FIRST_FIELD_CODE - RANGE1_FIRST);
143 const RANGE2_ADJUST = - (FIRST_FIELD_CODE + RANGE1_SIZE - RANGE2_FIRST); 145 const RANGE2_ADJUST = - (FIRST_FIELD_CODE + RANGE1_SIZE - RANGE2_FIRST);
144 const RANGE3_ADJUST = 146 const RANGE3_ADJUST =
145 - (FIRST_FIELD_CODE + RANGE1_SIZE + RANGE2_SIZE - RANGE3_FIRST); 147 - (FIRST_FIELD_CODE + RANGE1_SIZE + RANGE2_SIZE - RANGE3_FIRST);
146 148
147 String receiverParamName = compiler.enableMinification ? "r" : "receiver"; 149 String receiverParamName = compiler.enableMinification ? "r" : "receiver";
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531 function ForceEfficientMap() {} 533 function ForceEfficientMap() {}
532 ForceEfficientMap.prototype = this; 534 ForceEfficientMap.prototype = this;
533 new ForceEfficientMap(); 535 new ForceEfficientMap();
534 } 536 }
535 Isolate.prototype = oldIsolate.prototype; 537 Isolate.prototype = oldIsolate.prototype;
536 Isolate.prototype.constructor = Isolate; 538 Isolate.prototype.constructor = Isolate;
537 Isolate.${namer.isolatePropertiesName} = isolateProperties; 539 Isolate.${namer.isolatePropertiesName} = isolateProperties;
538 if (#) 540 if (#)
539 Isolate.$finishClassesProperty = oldIsolate.$finishClassesProperty; 541 Isolate.$finishClassesProperty = oldIsolate.$finishClassesProperty;
540 if (#) 542 if (#)
541 Isolate.makeConstantList = oldIsolate.makeConstantList; 543 Isolate.$makeConstListProperty = oldIsolate.$makeConstListProperty;
542 return Isolate; 544 return Isolate;
543 }''', 545 }''',
544 [ needsDefineClass, hasMakeConstantList ]); 546 [ needsDefineClass, hasMakeConstantList ]);
545 } 547 }
546 548
547 jsAst.Fun get lazyInitializerFunction { 549 jsAst.Fun get lazyInitializerFunction {
548 String isolate = namer.currentIsolate; 550 String isolate = namer.currentIsolate;
549 jsAst.Expression cyclicThrow = 551 jsAst.Expression cyclicThrow =
550 namer.elementAccess(backend.getCyclicThrowHelper()); 552 namer.elementAccess(backend.getCyclicThrowHelper());
551 553
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949 int r = namer.constantLongName(a).compareTo(namer.constantLongName(b)); 951 int r = namer.constantLongName(a).compareTo(namer.constantLongName(b));
950 if (r != 0) return r; 952 if (r != 0) return r;
951 // Resolve collisions in the long name by using the constant name (i.e. JS 953 // Resolve collisions in the long name by using the constant name (i.e. JS
952 // name) which is unique. 954 // name) which is unique.
953 return namer.constantName(a).compareTo(namer.constantName(b)); 955 return namer.constantName(a).compareTo(namer.constantName(b));
954 } 956 }
955 957
956 void emitMakeConstantListIfNotEmitted(CodeBuffer buffer) { 958 void emitMakeConstantListIfNotEmitted(CodeBuffer buffer) {
957 if (hasMakeConstantList) return; 959 if (hasMakeConstantList) return;
958 hasMakeConstantList = true; 960 hasMakeConstantList = true;
959 buffer 961 jsAst.Statement value = new jsAst.ExpressionStatement(new jsAst.Assignment(
960 ..write(namer.isolateName) 962 new jsAst.PropertyAccess.field(
961 ..write('''.makeConstantList = function(list) { 963 new jsAst.VariableUse(namer.isolateName),
962 list.immutable\$list = $initName; 964 makeConstListProperty),
963 list.fixed\$length = $initName; 965 js('''function(list) {
964 return list; 966 list.immutable\$list = $initName;
965 }; 967 list.fixed\$length = $initName;
966 '''); 968 return list;
969 }''')));
970 buffer.write(jsAst.prettyPrint(value, compiler));
967 } 971 }
968 972
969 /// Returns the code equivalent to: 973 /// Returns the code equivalent to:
970 /// `function(args) { $.startRootIsolate(X.main$closure(), args); }` 974 /// `function(args) { $.startRootIsolate(X.main$closure(), args); }`
971 String buildIsolateSetupClosure(CodeBuffer buffer, 975 String buildIsolateSetupClosure(CodeBuffer buffer,
972 Element appMain, 976 Element appMain,
973 Element isolateMain) { 977 Element isolateMain) {
974 jsAst.Expression mainAccess = namer.isolateStaticClosureAccess(appMain); 978 jsAst.Expression mainAccess = namer.isolateStaticClosureAccess(appMain);
975 // Since we pass the closurized version of the main method to 979 // Since we pass the closurized version of the main method to
976 // the isolate method, we must make sure that it exists. 980 // the isolate method, we must make sure that it exists.
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1739 String sourceMap = sourceMapBuilder.build(); 1743 String sourceMap = sourceMapBuilder.build();
1740 compiler.outputProvider(name, 'js.map') 1744 compiler.outputProvider(name, 'js.map')
1741 ..add(sourceMap) 1745 ..add(sourceMap)
1742 ..close(); 1746 ..close();
1743 } 1747 }
1744 1748
1745 void registerReadTypeVariable(TypeVariableElement element) { 1749 void registerReadTypeVariable(TypeVariableElement element) {
1746 readTypeVariables.add(element); 1750 readTypeVariables.add(element);
1747 } 1751 }
1748 } 1752 }
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