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// Copyright 2011 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef NINJA_STATE_H_
#define NINJA_STATE_H_
#pragma once
#include <map>
#include <string>
#include <vector>
#include "eval_env.h"
#include "stat_cache.h"
using namespace std;
struct BuildLog;
struct Edge;
struct Node;
struct Rule;
/// Global state (file status, loaded rules) for a single run.
struct State {
static const Rule kPhonyRule;
State();
void AddRule(const Rule* rule);
const Rule* LookupRule(const string& rule_name);
Edge* AddEdge(const Rule* rule);
Node* GetNode(const string& path);
Node* LookupNode(const string& path);
Node* SpellcheckNode(const string& path);
void AddIn(Edge* edge, const string& path);
void AddOut(Edge* edge, const string& path);
bool AddDefault(const string& path, string* error);
void Reset();
/// @return the root node(s) of the graph. (Root nodes have no output edges).
/// @param error where to write the error message if somethings went wrong.
vector<Node*> RootNodes(string* error);
vector<Node*> DefaultNodes(string* error);
StatCache* stat_cache() { return &stat_cache_; }
StatCache stat_cache_;
/// All the rules used in the graph.
map<string, const Rule*> rules_;
/// All the edges of the graph.
vector<Edge*> edges_;
BindingEnv bindings_;
vector<Node*> defaults_;
struct BuildLog* build_log_;
};
#endif // NINJA_STATE_H_
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