| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'package:compiler/src/resolution/access_semantics.dart'; |
| import 'package:compiler/src/resolution/send_structure.dart'; |
| import 'package:compiler/src/resolution/tree_elements.dart'; |
| import 'package:compiler/src/tree/nodes.dart' as ast; |
| |
| /// Id for a code point with type inference information. |
| // TODO(johnniwinther): Create an [Id]-based equivalence with the kernel IR. |
| class Id { |
| final int value; |
| |
| const Id(this.value); |
| |
| int get hashCode => value.hashCode; |
| |
| bool operator ==(other) { |
| if (identical(this, other)) return true; |
| if (other is! Id) return false; |
| return value == other.value; |
| } |
| |
| String toString() => value.toString(); |
| } |
| |
| abstract class AstEnumeratorMixin { |
| TreeElements get elements; |
| |
| Id computeAccessId(ast.Send node, AccessSemantics access) { |
| switch (access.kind) { |
| case AccessKind.DYNAMIC_PROPERTY: |
| return new Id(node.selector.getBeginToken().charOffset); |
| default: |
| return new Id(node.getBeginToken().charOffset); |
| } |
| } |
| |
| Id computeId(ast.Send node) { |
| var sendStructure = elements.getSendStructure(node); |
| if (sendStructure == null) return null; |
| switch (sendStructure.kind) { |
| case SendStructureKind.GET: |
| case SendStructureKind.INVOKE: |
| case SendStructureKind.INCOMPATIBLE_INVOKE: |
| return computeAccessId(node, sendStructure.semantics); |
| default: |
| return new Id(node.getBeginToken().charOffset); |
| } |
| } |
| } |