1 // Copyright 2011 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef NINJA_MANIFEST_PARSER_H_ 16 #define NINJA_MANIFEST_PARSER_H_ 17 18 #include "parser.h" 19 20 struct BindingEnv; 21 struct EvalString; 22 23 enum DupeEdgeAction { 24 kDupeEdgeActionWarn, 25 kDupeEdgeActionError, 26 }; 27 28 enum PhonyCycleAction { 29 kPhonyCycleActionWarn, 30 kPhonyCycleActionError, 31 }; 32 33 struct ManifestParserOptions { ManifestParserOptionsManifestParserOptions34 ManifestParserOptions() 35 : dupe_edge_action_(kDupeEdgeActionWarn), 36 phony_cycle_action_(kPhonyCycleActionWarn) {} 37 DupeEdgeAction dupe_edge_action_; 38 PhonyCycleAction phony_cycle_action_; 39 }; 40 41 /// Parses .ninja files. 42 struct ManifestParser : public Parser { 43 ManifestParser(State* state, FileReader* file_reader, 44 ManifestParserOptions options = ManifestParserOptions()); 45 46 /// Parse a text string of input. Used by tests. ParseTestManifestParser47 bool ParseTest(const std::string& input, std::string* err) { 48 quiet_ = true; 49 return Parse("input", input, err); 50 } 51 52 private: 53 /// Parse a file, given its contents as a string. 54 bool Parse(const std::string& filename, const std::string& input, 55 std::string* err); 56 57 /// Parse various statement types. 58 bool ParsePool(std::string* err); 59 bool ParseRule(std::string* err); 60 bool ParseLet(std::string* key, EvalString* val, std::string* err); 61 bool ParseEdge(std::string* err); 62 bool ParseDefault(std::string* err); 63 64 /// Parse either a 'subninja' or 'include' line. 65 bool ParseFileInclude(bool new_scope, std::string* err); 66 67 BindingEnv* env_; 68 ManifestParserOptions options_; 69 bool quiet_; 70 }; 71 72 #endif // NINJA_MANIFEST_PARSER_H_ 73