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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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_ITEM_H_ | 5 #ifndef TOOLS_GN_ITEM_H_ |
6 #define TOOLS_GN_ITEM_H_ | 6 #define TOOLS_GN_ITEM_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "tools/gn/label.h" | 10 #include "tools/gn/label.h" |
11 | 11 |
12 class Config; | 12 class Config; |
13 class ItemNode; | 13 class ParseNode; |
14 class Settings; | 14 class Settings; |
15 class Target; | 15 class Target; |
16 class Toolchain; | 16 class Toolchain; |
17 | 17 |
18 // A named item (target, config, etc.) that participates in the dependency | 18 // A named item (target, config, etc.) that participates in the dependency |
19 // graph. | 19 // graph. |
20 class Item { | 20 class Item { |
21 public: | 21 public: |
22 Item(const Settings* settings, const Label& label); | 22 Item(const Settings* settings, const Label& label); |
23 virtual ~Item(); | 23 virtual ~Item(); |
24 | 24 |
25 const Settings* settings() const { return settings_; } | 25 const Settings* settings() const { return settings_; } |
26 | 26 |
27 // This is guaranteed to never change after construction so this can be | 27 // This is guaranteed to never change after construction so this can be |
28 // accessed from any thread with no locking once the item is constructed. | 28 // accessed from any thread with no locking once the item is constructed. |
29 const Label& label() const { return label_; } | 29 const Label& label() const { return label_; } |
30 | 30 |
31 // The Item and the ItemNode make a pair. This will be set when the ItemNode | 31 const ParseNode* defined_from() const { return defined_from_; } |
32 // is constructed that owns this Item. The ItemNode should only be | 32 void set_defined_from(const ParseNode* df) { defined_from_ = df; } |
33 // dereferenced with the ItemTree lock held. | |
34 ItemNode* item_node() { return item_node_; } | |
35 const ItemNode* item_node() const { return item_node_; } | |
36 void set_item_node(ItemNode* in) { item_node_ = in; } | |
37 | 33 |
38 // Manual RTTI. | 34 // Manual RTTI. |
39 virtual Config* AsConfig(); | 35 virtual Config* AsConfig(); |
40 virtual const Config* AsConfig() const; | 36 virtual const Config* AsConfig() const; |
41 virtual Target* AsTarget(); | 37 virtual Target* AsTarget(); |
42 virtual const Target* AsTarget() const; | 38 virtual const Target* AsTarget() const; |
43 virtual Toolchain* AsToolchain(); | 39 virtual Toolchain* AsToolchain(); |
44 virtual const Toolchain* AsToolchain() const; | 40 virtual const Toolchain* AsToolchain() const; |
45 | 41 |
46 // Returns a name like "target" or "config" for the type of item this is, to | 42 // Returns a name like "target" or "config" for the type of item this is, to |
47 // be used in logging and error messages. | 43 // be used in logging and error messages. |
48 std::string GetItemTypeName() const; | 44 std::string GetItemTypeName() const; |
49 | 45 |
50 // Called when this item is resolved, meaning it and all of its dependents | 46 // Called when this item is resolved, meaning it and all of its dependents |
51 // have no unresolved deps. | 47 // have no unresolved deps. |
52 virtual void OnResolved() {} | 48 virtual void OnResolved() {} |
53 | 49 |
54 private: | 50 private: |
55 const Settings* settings_; | 51 const Settings* settings_; |
56 Label label_; | 52 Label label_; |
57 | 53 const ParseNode* defined_from_; |
58 ItemNode* item_node_; | |
59 }; | 54 }; |
60 | 55 |
61 #endif // TOOLS_GN_ITEM_H_ | 56 #endif // TOOLS_GN_ITEM_H_ |
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