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