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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef TOOLS_GN_DEPS_ITERATOR_H_ | 5 #ifndef TOOLS_GN_DEPS_ITERATOR_H_ |
6 #define TOOLS_GN_DEPS_ITERATOR_H_ | 6 #define TOOLS_GN_DEPS_ITERATOR_H_ |
7 | 7 |
8 #include "base/basictypes.h" | |
9 #include "tools/gn/label_ptr.h" | 8 #include "tools/gn/label_ptr.h" |
10 | 9 |
11 class Target; | 10 class Target; |
12 | 11 |
13 // Provides an iterator for iterating over multiple LabelTargetVectors to | 12 // Provides an iterator for iterating over multiple LabelTargetVectors to |
14 // make it convenient to iterate over all deps of a target. | 13 // make it convenient to iterate over all deps of a target. |
15 // | 14 // |
16 // This works by maintaining a simple stack of vectors (since we have a fixed | 15 // This works by maintaining a simple stack of vectors (since we have a fixed |
17 // number of deps types). When the stack is empty, we've reached the end. This | 16 // number of deps types). When the stack is empty, we've reached the end. This |
18 // means that the default-constructed iterator == end() for any sequence. | 17 // means that the default-constructed iterator == end() for any sequence. |
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64 | 63 |
65 const DepsIterator& begin() const { return begin_; } | 64 const DepsIterator& begin() const { return begin_; } |
66 const DepsIterator& end() const { return end_; } | 65 const DepsIterator& end() const { return end_; } |
67 | 66 |
68 private: | 67 private: |
69 DepsIterator begin_; | 68 DepsIterator begin_; |
70 DepsIterator end_; | 69 DepsIterator end_; |
71 }; | 70 }; |
72 | 71 |
73 #endif // TOOLS_GN_DEPS_ITERATOR_H_ | 72 #endif // TOOLS_GN_DEPS_ITERATOR_H_ |
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