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 { |
34 | 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. |
47 | 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 | |