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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 import 'common/names.dart' show Identifiers; | 5 import 'common/names.dart' show Identifiers; |
6 import 'common/resolution.dart' show ParsingContext, Resolution; | 6 import 'common/resolution.dart' show ParsingContext, Resolution; |
7 import 'common/tasks.dart' show CompilerTask, Measurer; | 7 import 'common/tasks.dart' show CompilerTask, Measurer; |
8 import 'common.dart'; | 8 import 'common.dart'; |
9 import 'compiler.dart' show Compiler; | 9 import 'compiler.dart' show Compiler; |
10 import 'constants/expressions.dart'; | 10 import 'constants/expressions.dart'; |
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39 /// to preserve Dart semantics when compiled to JavaScript. Given a particular | 39 /// to preserve Dart semantics when compiled to JavaScript. Given a particular |
40 /// node to look up, it returns a information about the internal representation | 40 /// node to look up, it returns a information about the internal representation |
41 /// of how closure conversion is implemented. T is an ir.Node or Node. | 41 /// of how closure conversion is implemented. T is an ir.Node or Node. |
42 abstract class ClosureDataLookup<T> { | 42 abstract class ClosureDataLookup<T> { |
43 /// Look up information about the variables that have been mutated and are | 43 /// Look up information about the variables that have been mutated and are |
44 /// used inside the scope of [node]. | 44 /// used inside the scope of [node]. |
45 ScopeInfo getScopeInfo(MemberEntity member); | 45 ScopeInfo getScopeInfo(MemberEntity member); |
46 | 46 |
47 /// This returns the same information as ScopeInfo, but can be called in | 47 /// This returns the same information as ScopeInfo, but can be called in |
48 /// situations when you are sure you are dealing with a closure specifically. | 48 /// situations when you are sure you are dealing with a closure specifically. |
49 // TODO(johnniwinther,efortuna): Can we use [getScopeInfo] instead? | 49 // TODO(johnniwinther,efortuna): Remove the need for this. It is now only |
| 50 // used in inference. |
50 ClosureRepresentationInfo getClosureInfoForMember(MemberEntity member); | 51 ClosureRepresentationInfo getClosureInfoForMember(MemberEntity member); |
51 | 52 |
52 ClosureRepresentationInfo getClosureInfo(T localFunction); | 53 ClosureRepresentationInfo getClosureInfo(T localFunction); |
53 | 54 |
54 ClosureRepresentationInfo getClosureInfoForMemberTesting(MemberEntity member); | |
55 | |
56 ClosureRepresentationInfo getClosureInfoForTesting(T localFunction); | |
57 | |
58 /// Look up information about a loop, in case any variables it declares need | 55 /// Look up information about a loop, in case any variables it declares need |
59 /// to be boxed/snapshotted. | 56 /// to be boxed/snapshotted. |
60 CapturedLoopScope getCapturedLoopScope(T loopNode); | 57 CapturedLoopScope getCapturedLoopScope(T loopNode); |
61 | 58 |
62 /// Accessor to the information about scopes that closures capture. Used by | 59 /// Accessor to the information about scopes that closures capture. Used by |
63 /// the SSA builder. | 60 /// the SSA builder. |
64 CapturedScope getCapturedScope(MemberEntity entity); | 61 CapturedScope getCapturedScope(MemberEntity entity); |
65 } | 62 } |
66 | 63 |
67 /// Class that represents one level of scoping information, whether this scope | 64 /// Class that represents one level of scoping information, whether this scope |
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292 } | 289 } |
293 | 290 |
294 ClosureRepresentationInfo getClosureInfoForMember(MemberEntity member) { | 291 ClosureRepresentationInfo getClosureInfoForMember(MemberEntity member) { |
295 return _getMemberMapping(member); | 292 return _getMemberMapping(member); |
296 } | 293 } |
297 | 294 |
298 ClosureRepresentationInfo getClosureInfo(covariant FunctionExpression node) { | 295 ClosureRepresentationInfo getClosureInfo(covariant FunctionExpression node) { |
299 return _getClosureMapping(node); | 296 return _getClosureMapping(node); |
300 } | 297 } |
301 | 298 |
302 ClosureRepresentationInfo getClosureInfoForMemberTesting( | |
303 MemberEntity member) { | |
304 return getClosureInfoForMember(member); | |
305 } | |
306 | |
307 ClosureRepresentationInfo getClosureInfoForTesting( | 299 ClosureRepresentationInfo getClosureInfoForTesting( |
308 covariant FunctionExpression node) { | 300 covariant FunctionExpression node) { |
309 return getClosureInfo(node); | 301 return getClosureInfo(node); |
310 } | 302 } |
311 | 303 |
312 CapturedLoopScope getCapturedLoopScope(Node loopNode) { | 304 CapturedLoopScope getCapturedLoopScope(Node loopNode) { |
313 var value = _closureInfoMap[loopNode]; | 305 var value = _closureInfoMap[loopNode]; |
314 return value == null ? const CapturedLoopScope() : value; | 306 return value == null ? const CapturedLoopScope() : value; |
315 } | 307 } |
316 | 308 |
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1565 /// | 1557 /// |
1566 /// Move the below classes to a JS model eventually. | 1558 /// Move the below classes to a JS model eventually. |
1567 /// | 1559 /// |
1568 abstract class JSEntity implements MemberEntity { | 1560 abstract class JSEntity implements MemberEntity { |
1569 Local get declaredEntity; | 1561 Local get declaredEntity; |
1570 } | 1562 } |
1571 | 1563 |
1572 abstract class PrivatelyNamedJSEntity implements JSEntity { | 1564 abstract class PrivatelyNamedJSEntity implements JSEntity { |
1573 Entity get rootOfScope; | 1565 Entity get rootOfScope; |
1574 } | 1566 } |
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