Shinichiro Hamaji | 1d545aa | 2015-06-23 15:29:13 +0900 | [diff] [blame] | 1 | // Copyright 2015 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 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 15 | #ifndef STMT_H_ |
| 16 | #define STMT_H_ |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 17 | |
| 18 | #include <string> |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 19 | #include <vector> |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 20 | |
| 21 | #include "loc.h" |
| 22 | #include "string_piece.h" |
Shinichiro Hamaji | 505d0d2 | 2016-02-29 20:07:39 +0900 | [diff] [blame] | 23 | #include "symtab.h" |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 24 | |
| 25 | using namespace std; |
| 26 | |
| 27 | class Evaluator; |
Shinichiro Hamaji | f24ed14 | 2015-07-13 20:57:42 -0700 | [diff] [blame] | 28 | class Value; |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 29 | |
| 30 | enum struct AssignOp { |
| 31 | EQ, |
| 32 | COLON_EQ, |
| 33 | PLUS_EQ, |
| 34 | QUESTION_EQ, |
| 35 | }; |
| 36 | |
Shinichiro Hamaji | 45a0c76 | 2015-06-26 06:47:10 +0900 | [diff] [blame] | 37 | enum struct AssignDirective { |
Shinichiro Hamaji | 420f775 | 2015-06-26 04:02:02 +0900 | [diff] [blame] | 38 | NONE = 0, |
| 39 | OVERRIDE = 1, |
| 40 | EXPORT = 2, |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 41 | }; |
| 42 | |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 43 | enum struct CondOp { |
| 44 | IFEQ, |
| 45 | IFNEQ, |
| 46 | IFDEF, |
| 47 | IFNDEF, |
| 48 | }; |
| 49 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 50 | struct Stmt { |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 51 | public: |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 52 | virtual ~Stmt(); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 53 | |
| 54 | Loc loc() const { return loc_; } |
| 55 | void set_loc(Loc loc) { loc_ = loc; } |
| 56 | StringPiece orig() const { return orig_; } |
| 57 | |
| 58 | virtual void Eval(Evaluator* ev) const = 0; |
| 59 | |
| 60 | virtual string DebugString() const = 0; |
| 61 | |
| 62 | protected: |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 63 | Stmt(); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 64 | |
| 65 | private: |
| 66 | Loc loc_; |
| 67 | StringPiece orig_; |
| 68 | }; |
| 69 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 70 | struct RuleStmt : public Stmt { |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 71 | Value* expr; |
| 72 | char term; |
| 73 | Value* after_term; |
| 74 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 75 | virtual ~RuleStmt(); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 76 | |
| 77 | virtual void Eval(Evaluator* ev) const; |
| 78 | |
| 79 | virtual string DebugString() const; |
| 80 | }; |
| 81 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 82 | struct AssignStmt : public Stmt { |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 83 | Value* lhs; |
| 84 | Value* rhs; |
Shinichiro Hamaji | 81699be | 2015-06-22 18:07:38 +0900 | [diff] [blame] | 85 | StringPiece orig_rhs; |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 86 | AssignOp op; |
| 87 | AssignDirective directive; |
| 88 | |
Shinichiro Hamaji | 505d0d2 | 2016-02-29 20:07:39 +0900 | [diff] [blame] | 89 | AssignStmt() |
| 90 | : lhs_sym_cache_(Symbol::IsUninitialized{}) { |
| 91 | } |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 92 | virtual ~AssignStmt(); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 93 | |
| 94 | virtual void Eval(Evaluator* ev) const; |
| 95 | |
| 96 | virtual string DebugString() const; |
Shinichiro Hamaji | 505d0d2 | 2016-02-29 20:07:39 +0900 | [diff] [blame] | 97 | |
| 98 | Symbol GetLhsSymbol(Evaluator* ev) const; |
| 99 | |
| 100 | private: |
| 101 | mutable Symbol lhs_sym_cache_; |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 102 | }; |
| 103 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 104 | struct CommandStmt : public Stmt { |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 105 | Value* expr; |
Shinichiro Hamaji | 631a9f8 | 2015-07-05 14:18:15 +0900 | [diff] [blame] | 106 | StringPiece orig; |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 107 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 108 | virtual ~CommandStmt(); |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 109 | |
| 110 | virtual void Eval(Evaluator* ev) const; |
| 111 | |
| 112 | virtual string DebugString() const; |
| 113 | }; |
| 114 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 115 | struct IfStmt : public Stmt { |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 116 | CondOp op; |
| 117 | Value* lhs; |
| 118 | Value* rhs; |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 119 | vector<Stmt*> true_stmts; |
| 120 | vector<Stmt*> false_stmts; |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 121 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 122 | virtual ~IfStmt(); |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 123 | |
| 124 | virtual void Eval(Evaluator* ev) const; |
| 125 | |
| 126 | virtual string DebugString() const; |
| 127 | }; |
| 128 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 129 | struct IncludeStmt : public Stmt { |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 130 | Value* expr; |
Shinichiro Hamaji | efad2dd | 2015-06-17 03:08:02 +0900 | [diff] [blame] | 131 | bool should_exist; |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 132 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 133 | virtual ~IncludeStmt(); |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 134 | |
| 135 | virtual void Eval(Evaluator* ev) const; |
| 136 | |
| 137 | virtual string DebugString() const; |
| 138 | }; |
| 139 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 140 | struct ExportStmt : public Stmt { |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 141 | Value* expr; |
| 142 | bool is_export; |
| 143 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 144 | virtual ~ExportStmt(); |
Shinichiro Hamaji | 42b625f | 2015-06-16 23:07:21 +0900 | [diff] [blame] | 145 | |
| 146 | virtual void Eval(Evaluator* ev) const; |
| 147 | |
| 148 | virtual string DebugString() const; |
| 149 | }; |
| 150 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 151 | struct ParseErrorStmt : public Stmt { |
Shinichiro Hamaji | 5622786 | 2015-08-05 16:53:37 +0900 | [diff] [blame] | 152 | string msg; |
| 153 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 154 | virtual ~ParseErrorStmt(); |
Shinichiro Hamaji | 5622786 | 2015-08-05 16:53:37 +0900 | [diff] [blame] | 155 | |
| 156 | virtual void Eval(Evaluator* ev) const; |
| 157 | |
| 158 | virtual string DebugString() const; |
| 159 | }; |
| 160 | |
Shinichiro Hamaji | 645cca7 | 2015-09-24 17:04:21 +0900 | [diff] [blame] | 161 | #endif // STMT_H_ |