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Side by Side Diff: pkg/analysis_server/lib/src/services/search/element_visitors.dart

Issue 969113002: Reformat (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 5 years, 9 months ago
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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 services.search.element_visitors; 5 library services.search.element_visitors;
6 6
7 import 'package:analyzer/src/generated/element.dart'; 7 import 'package:analyzer/src/generated/element.dart';
8 8
9
10 /** 9 /**
11 * Uses [processor] to visit all of the children of [element]. 10 * Uses [processor] to visit all of the children of [element].
12 * If [processor] returns `true`, then children of a child are visited too. 11 * If [processor] returns `true`, then children of a child are visited too.
13 */ 12 */
14 void visitChildren(Element element, ElementProcessor processor) { 13 void visitChildren(Element element, ElementProcessor processor) {
15 element.visitChildren(new _ElementVisitorAdapter(processor)); 14 element.visitChildren(new _ElementVisitorAdapter(processor));
16 } 15 }
17 16
18
19 /** 17 /**
20 * Uses [processor] to visit all of the top-level elements of [library]. 18 * Uses [processor] to visit all of the top-level elements of [library].
21 */ 19 */
22 void visitLibraryTopLevelElements(LibraryElement library, 20 void visitLibraryTopLevelElements(
23 ElementProcessor processor) { 21 LibraryElement library, ElementProcessor processor) {
24 library.visitChildren(new _TopLevelElementsVisitor(processor)); 22 library.visitChildren(new _TopLevelElementsVisitor(processor));
25 } 23 }
26 24
27
28 /** 25 /**
29 * An [Element] processor function type. 26 * An [Element] processor function type.
30 * If `true` is returned, children of [element] will be visited. 27 * If `true` is returned, children of [element] will be visited.
31 */ 28 */
32 typedef bool ElementProcessor(Element element); 29 typedef bool ElementProcessor(Element element);
33 30
34
35 /** 31 /**
36 * A [GeneralizingElementVisitor] adapter for [ElementProcessor]. 32 * A [GeneralizingElementVisitor] adapter for [ElementProcessor].
37 */ 33 */
38 class _ElementVisitorAdapter extends GeneralizingElementVisitor { 34 class _ElementVisitorAdapter extends GeneralizingElementVisitor {
39 final ElementProcessor processor; 35 final ElementProcessor processor;
40 36
41 _ElementVisitorAdapter(this.processor); 37 _ElementVisitorAdapter(this.processor);
42 38
43 @override 39 @override
44 void visitElement(Element element) { 40 void visitElement(Element element) {
45 bool visitChildren = processor(element); 41 bool visitChildren = processor(element);
46 if (visitChildren == true) { 42 if (visitChildren == true) {
47 element.visitChildren(this); 43 element.visitChildren(this);
48 } 44 }
49 } 45 }
50 } 46 }
51 47
52
53 /** 48 /**
54 * A [GeneralizingElementVisitor] for visiting top-level elements. 49 * A [GeneralizingElementVisitor] for visiting top-level elements.
55 */ 50 */
56 class _TopLevelElementsVisitor extends GeneralizingElementVisitor { 51 class _TopLevelElementsVisitor extends GeneralizingElementVisitor {
57 final ElementProcessor processor; 52 final ElementProcessor processor;
58 53
59 _TopLevelElementsVisitor(this.processor); 54 _TopLevelElementsVisitor(this.processor);
60 55
61 @override 56 @override
62 void visitElement(Element element) { 57 void visitElement(Element element) {
63 if (element is CompilationUnitElement) { 58 if (element is CompilationUnitElement) {
64 element.visitChildren(this); 59 element.visitChildren(this);
65 } else { 60 } else {
66 processor(element); 61 processor(element);
67 } 62 }
68 } 63 }
69 } 64 }
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