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85 lines
2.6 KiB
C++
85 lines
2.6 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_TARGET_GENERATOR_H_
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#define TOOLS_GN_TARGET_GENERATOR_H_
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#include <string>
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#include <vector>
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#include "base/macros.h"
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#include "tools/gn/label_ptr.h"
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#include "tools/gn/unique_vector.h"
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class BuildSettings;
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class Err;
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class FunctionCallNode;
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class Scope;
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class SubstitutionPattern;
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class Value;
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// Fills the variables in a Target object from a Scope (the result of a script
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// execution). Target-type-specific derivations of this class will be used
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// for each different type of function call. This class implements the common
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// behavior.
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class TargetGenerator {
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public:
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TargetGenerator(Target* target,
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Scope* scope,
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const FunctionCallNode* function_call,
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Err* err);
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virtual ~TargetGenerator();
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void Run();
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// The function call is the parse tree node that invoked the target.
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// err() will be set on failure.
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static void GenerateTarget(Scope* scope,
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const FunctionCallNode* function_call,
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const std::vector<Value>& args,
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const std::string& output_type,
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Err* err);
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protected:
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// Derived classes implement this to do type-specific generation.
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virtual void DoRun() = 0;
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const BuildSettings* GetBuildSettings() const;
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bool FillSources();
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bool FillPublic();
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bool FillConfigs();
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bool FillOutputs(bool allow_substitutions);
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bool FillCheckIncludes();
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// Rrturns true if the given pattern will expand to a file in the output
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// directory. If not, returns false and sets the error, blaming the given
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// Value.
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bool EnsureSubstitutionIsInOutputDir(const SubstitutionPattern& pattern,
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const Value& original_value);
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Target* target_;
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Scope* scope_;
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const FunctionCallNode* function_call_;
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Err* err_;
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private:
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bool FillDependentConfigs(); // Includes all types of dependent configs.
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bool FillData();
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bool FillDependencies(); // Includes data dependencies.
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bool FillTestonly();
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bool FillAssertNoDeps();
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bool FillWriteRuntimeDeps();
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// Reads configs/deps from the given var name, and uses the given setting on
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// the target to save them.
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bool FillGenericConfigs(const char* var_name,
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UniqueVector<LabelConfigPair>* dest);
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bool FillGenericDeps(const char* var_name, LabelTargetVector* dest);
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DISALLOW_COPY_AND_ASSIGN(TargetGenerator);
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};
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#endif // TOOLS_GN_TARGET_GENERATOR_H_
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