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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 library code_generator; | 5 library code_generator; |
6 | 6 |
7 import 'glue.dart'; | 7 import 'glue.dart'; |
8 | 8 |
9 import '../../closure.dart' show ClosureClassElement; | 9 import '../../closure.dart' show ClosureClassElement; |
10 import '../../common/codegen.dart' show CodegenRegistry; | 10 import '../../common/codegen.dart' show CodegenRegistry; |
11 import '../../constants/values.dart'; | 11 import '../../constants/values.dart'; |
12 import '../../dart_types.dart'; | 12 import '../../dart_types.dart'; |
13 import '../../diagnostics/invariant.dart' show invariant; | 13 import '../../diagnostics/invariant.dart' show invariant; |
14 import '../../diagnostics/spannable.dart' show CURRENT_ELEMENT_SPANNABLE; | 14 import '../../diagnostics/spannable.dart' show CURRENT_ELEMENT_SPANNABLE; |
15 import '../../elements/elements.dart'; | 15 import '../../elements/elements.dart'; |
16 import '../../io/source_information.dart' show SourceInformation; | 16 import '../../io/source_information.dart' show SourceInformation; |
17 import '../../js/js.dart' as js; | 17 import '../../js/js.dart' as js; |
18 import '../../tree_ir/tree_ir_nodes.dart' as tree_ir; | 18 import '../../tree_ir/tree_ir_nodes.dart' as tree_ir; |
19 import '../../tree_ir/tree_ir_nodes.dart' show BuiltinOperator; | 19 import '../../tree_ir/tree_ir_nodes.dart' show BuiltinOperator, BuiltinMethod; |
20 import '../../types/types.dart' show TypeMask; | 20 import '../../types/types.dart' show TypeMask; |
21 import '../../universe/universe.dart' show | 21 import '../../universe/universe.dart' show |
22 Selector, | 22 Selector, |
23 UniverseSelector; | 23 UniverseSelector; |
24 import '../../util/maplet.dart'; | 24 import '../../util/maplet.dart'; |
25 | 25 |
26 /// The JS name of a built-in method. | |
27 final Map<BuiltinMethod, String> BuiltinMethodName = <BuiltinMethod, String>{ | |
karlklose
2015/08/12 13:00:46
Identifiers for globals should start with a lower
asgerf
2015/08/12 13:29:39
Done. I also decided to make it static to put it c
| |
28 BuiltinMethod.Push: 'push', | |
29 BuiltinMethod.Pop: 'pop', | |
30 }; | |
31 | |
26 class CodegenBailout { | 32 class CodegenBailout { |
27 final tree_ir.Node node; | 33 final tree_ir.Node node; |
28 final String reason; | 34 final String reason; |
29 CodegenBailout(this.node, this.reason); | 35 CodegenBailout(this.node, this.reason); |
30 String get message { | 36 String get message { |
31 return 'bailout${node != null ? " on $node" : ""}: $reason'; | 37 return 'bailout${node != null ? " on $node" : ""}: $reason'; |
32 } | 38 } |
33 } | 39 } |
34 | 40 |
35 class CodeGenerator extends tree_ir.StatementVisitor | 41 class CodeGenerator extends tree_ir.StatementVisitor |
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827 case BuiltinOperator.IsNotNumber: | 833 case BuiltinOperator.IsNotNumber: |
828 return js.js("typeof # !== 'number'", args); | 834 return js.js("typeof # !== 'number'", args); |
829 case BuiltinOperator.IsFloor: | 835 case BuiltinOperator.IsFloor: |
830 return js.js("Math.floor(#) === #", args); | 836 return js.js("Math.floor(#) === #", args); |
831 case BuiltinOperator.IsNumberAndFloor: | 837 case BuiltinOperator.IsNumberAndFloor: |
832 return js.js("typeof # === 'number' && Math.floor(#) === #", args); | 838 return js.js("typeof # === 'number' && Math.floor(#) === #", args); |
833 } | 839 } |
834 } | 840 } |
835 | 841 |
836 @override | 842 @override |
843 js.Expression visitApplyBuiltinMethod(tree_ir.ApplyBuiltinMethod node) { | |
844 String name = BuiltinMethodName[node.method]; | |
845 js.Expression receiver = visitExpression(node.receiver); | |
846 List<js.Expression> args = visitExpressionList(node.arguments); | |
847 return js.js('#.#(#)', [receiver, name, args]); | |
848 } | |
849 | |
850 @override | |
837 js.Expression visitAwait(tree_ir.Await node) { | 851 js.Expression visitAwait(tree_ir.Await node) { |
838 return new js.Await(visitExpression(node.input)); | 852 return new js.Await(visitExpression(node.input)); |
839 } | 853 } |
840 | 854 |
841 visitFunctionExpression(tree_ir.FunctionExpression node) { | 855 visitFunctionExpression(tree_ir.FunctionExpression node) { |
842 // FunctionExpressions are currently unused. | 856 // FunctionExpressions are currently unused. |
843 // We might need them if we want to emit raw JS nested functions. | 857 // We might need them if we want to emit raw JS nested functions. |
844 throw 'FunctionExpressions should not be used'; | 858 throw 'FunctionExpressions should not be used'; |
845 } | 859 } |
846 } | 860 } |
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