| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef TOOLS_GN_ITEM_H_ |
| #define TOOLS_GN_ITEM_H_ |
| |
| #include <set> |
| #include <string> |
| |
| #include "gn/label.h" |
| #include "gn/source_file.h" |
| #include "gn/visibility.h" |
| |
| class Config; |
| class ParseNode; |
| class Pool; |
| class Settings; |
| class SourceFile; |
| class Target; |
| class Toolchain; |
| |
| // A named item (target, config, etc.) that participates in the dependency |
| // graph. |
| class Item { |
| public: |
| Item(const Settings* settings, |
| const Label& label, |
| const SourceFileSet& build_dependency_files = {}); |
| virtual ~Item(); |
| |
| const Settings* settings() const { return settings_; } |
| |
| // This is guaranteed to never change after construction so this can be |
| // accessed from any thread with no locking once the item is constructed. |
| const Label& label() const { return label_; } |
| |
| const ParseNode* defined_from() const { return defined_from_; } |
| void set_defined_from(const ParseNode* df) { defined_from_ = df; } |
| |
| Visibility& visibility() { return visibility_; } |
| const Visibility& visibility() const { return visibility_; } |
| |
| // Manual RTTI. |
| virtual Config* AsConfig(); |
| virtual const Config* AsConfig() const; |
| virtual Pool* AsPool(); |
| virtual const Pool* AsPool() const; |
| virtual Target* AsTarget(); |
| virtual const Target* AsTarget() const; |
| virtual Toolchain* AsToolchain(); |
| virtual const Toolchain* AsToolchain() const; |
| |
| // Returns a name like "target" or "config" for the type of item this is, to |
| // be used in logging and error messages. |
| std::string GetItemTypeName() const; |
| |
| // Returns the set of build files that may affect this item, please refer to |
| // Scope for how this is determined. |
| const SourceFileSet& build_dependency_files() const { |
| return build_dependency_files_; |
| } |
| |
| SourceFileSet& build_dependency_files() { return build_dependency_files_; } |
| |
| // Called when this item is resolved, meaning it and all of its dependents |
| // have no unresolved deps. Returns true on success. Sets the error and |
| // returns false on failure. |
| virtual bool OnResolved(Err* err); |
| |
| private: |
| const Settings* settings_; |
| Label label_; |
| SourceFileSet build_dependency_files_; |
| const ParseNode* defined_from_; |
| |
| Visibility visibility_; |
| }; |
| |
| #endif // TOOLS_GN_ITEM_H_ |