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
3// found in the LICENSE file.
4
5#ifndef TOOLS_GN_CONFIG_H_
6#define TOOLS_GN_CONFIG_H_
7
8#include "base/compiler_specific.h"
9#include "tools/gn/config_values.h"
10#include "tools/gn/item.h"
11
12class Err;
13class ItemTree;
14class LocationRange;
15class Settings;
16
17// Represents a named config in the dependency graph.
18class Config : public Item {
19 public:
20  Config(const Label& label);
21  virtual ~Config();
22
23  virtual Config* AsConfig() OVERRIDE;
24  virtual const Config* AsConfig() const OVERRIDE;
25
26  ConfigValues& config_values() { return config_values_; }
27  const ConfigValues& config_values() const { return config_values_; }
28
29  // Gets or creates a config.
30  //
31  // This is like the TargetManager is for Targets, but Configs are so much
32  // simpler that this one function is all we need.
33  static Config* GetConfig(const Settings* settings,
34                           const LocationRange& specified_from_here,
35                           const Label& label,
36                           Item* dep_from,
37                           Err* err);
38
39 private:
40  ConfigValues config_values_;
41
42  DISALLOW_COPY_AND_ASSIGN(Config);
43};
44
45#endif  // TOOLS_GN_CONFIG_H_
46