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comparison: src/Parser.h

src/Parser.h

changeset 108
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parent 107
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child 110
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equal deleted inserted replaced
107:55c2bcd8ed5c 108:6409ece8297c
54 }; 54 };
55 55
56 // ============================================================================ 56 // ============================================================================
57 // Mark types 57 // Mark types
58 // 58 //
59 enum eMarkType 59 named_enum MarkType
60 { 60 {
61 eLabelMark, 61 MARK_Label,
62 eIfMark, 62 MARK_If,
63 eInternalMark, // internal structures 63 MARK_Internal, // internal structures
64 }; 64 };
65 65
66 // ============================================================================ 66 // ============================================================================
67 // Scope types 67 // Scope types
68 // 68 //
69 enum EScopeType 69 named_enum ScopeType
70 { 70 {
71 eUnknownScope, 71 SCOPE_Unknown,
72 eIfScope, 72 SCOPE_If,
73 eWhileScope, 73 SCOPE_While,
74 eForScope, 74 SCOPE_For,
75 eDoScope, 75 SCOPE_Do,
76 eSwitchScope, 76 SCOPE_Switch,
77 eElseScope, 77 SCOPE_Else,
78 }; 78 };
79 79
80 enum EAssignmentOperator 80 named_enum AssignmentOperator
81 { 81 {
82 EAssign, 82 ASSIGNOP_Assign,
83 EAssignAdd, 83 ASSIGNOP_Add,
84 EAssignSub, 84 ASSIGNOP_Subtract,
85 EAssignMul, 85 ASSIGNOP_Multiply,
86 EAssignDiv, 86 ASSIGNOP_Divide,
87 EAssignMod, 87 ASSIGNOP_Modulus,
88 EAssignIncrement, 88 ASSIGNOP_Increase,
89 EAssignDecrement, 89 ASSIGNOP_Decrease,
90 };
91
92 named_enum Writability
93 {
94 WRITE_Mutable, // normal read-many-write-many variable
95 WRITE_Const, // write-once const variable
96 WRITE_Constexpr, // const variable whose value is known to compiler
97 };
98
99 // =============================================================================
100 //
101 // Parser mode: where is the parser at?
102 //
103 named_enum ParserMode
104 {
105 PARSERMODE_TopLevel, // at top level
106 PARSERMODE_Event, // inside event definition
107 PARSERMODE_MainLoop, // inside mainloop
108 PARSERMODE_Onenter, // inside onenter
109 PARSERMODE_Onexit, // inside onexit
90 }; 110 };
91 111
92 // ============================================================================ 112 // ============================================================================
93 // 113 //
94 struct Variable 114 struct Variable
95 { 115 {
96 enum EWritability
97 {
98 WRITE_Mutable, // normal read-many-write-many variable
99 WRITE_Const, // write-once const variable
100 WRITE_Constexpr, // const variable whose value is known to compiler
101 };
102
103 String name; 116 String name;
104 String statename; 117 String statename;
105 EType type; 118 DataType type;
106 int index; 119 int index;
107 EWritability writelevel; 120 Writability writelevel;
108 int value; 121 int value;
109 String origin; 122 String origin;
110 bool isarray; 123 bool isarray;
111 124
112 inline bool IsGlobal() const 125 inline bool IsGlobal() const
130 // 143 //
131 struct ScopeInfo 144 struct ScopeInfo
132 { 145 {
133 ByteMark* mark1; 146 ByteMark* mark1;
134 ByteMark* mark2; 147 ByteMark* mark2;
135 EScopeType type; 148 ScopeType type;
136 DataBuffer* buffer1; 149 DataBuffer* buffer1;
137 int globalVarIndexBase; 150 int globalVarIndexBase;
138 int globalArrayIndexBase; 151 int globalArrayIndexBase;
139 int localVarIndexBase; 152 int localVarIndexBase;
140 153
154 167
155 public: 168 public:
156 enum EReset 169 enum EReset
157 { 170 {
158 eNoReset, 171 eNoReset,
159 eResetScope, 172 SCOPE_Reset,
160 }; 173 };
161 174
162 BotscriptParser(); 175 BotscriptParser();
163 ~BotscriptParser(); 176 ~BotscriptParser();
164 void ParseBotscript (String fileName); 177 void ParseBotscript (String fileName);
165 DataBuffer* ParseCommand (CommandInfo* comm); 178 DataBuffer* ParseCommand (CommandInfo* comm);
166 DataBuffer* ParseAssignment (Variable* var); 179 DataBuffer* ParseAssignment (Variable* var);
167 EAssignmentOperator ParseAssignmentOperator (); 180 AssignmentOperator ParseAssignmentOperator();
168 String ParseFloat(); 181 String ParseFloat();
169 void PushScope (EReset reset = eResetScope); 182 void PushScope (EReset reset = SCOPE_Reset);
170 DataBuffer* ParseStatement(); 183 DataBuffer* ParseStatement();
171 void AddSwitchCase (DataBuffer* b); 184 void AddSwitchCase (DataBuffer* b);
172 void CheckToplevel(); 185 void CheckToplevel();
173 void CheckNotToplevel(); 186 void CheckNotToplevel();
174 bool TokenIs (EToken a); 187 bool TokenIs (EToken a);
178 Variable* FindVariable (const String& name); 191 Variable* FindVariable (const String& name);
179 bool IsInGlobalState() const; 192 bool IsInGlobalState() const;
180 void SuggestHighestVarIndex (bool global, int index); 193 void SuggestHighestVarIndex (bool global, int index);
181 int GetHighestVarIndex (bool global); 194 int GetHighestVarIndex (bool global);
182 195
183 inline ScopeInfo& GetScope (int offset) 196 inline ScopeInfo& GSCOPE_t (int offset)
184 { 197 {
185 return mScopeStack[mScopeCursor - offset]; 198 return mScopeStack[mScopeCursor - offset];
186 } 199 }
187 200
188 inline int GetNumEvents() const 201 inline int GetNumEvents() const
213 DataBuffer* mSwitchBuffer; 226 DataBuffer* mSwitchBuffer;
214 227
215 Lexer* mLexer; 228 Lexer* mLexer;
216 int mNumStates; 229 int mNumStates;
217 int mNumEvents; 230 int mNumEvents;
218 EParserMode mCurrentMode; 231 ParserMode mCurrentMode;
219 String mCurrentState; 232 String mCurrentState;
220 bool mStateSpawnDefined; 233 bool mStateSpawnDefined;
221 bool mGotMainLoop; 234 bool mGotMainLoop;
222 int mScopeCursor; 235 int mScopeCursor;
223 bool mCanElse; 236 bool mCanElse;
252 void ParseLabel(); 265 void ParseLabel();
253 void ParseEventdef(); 266 void ParseEventdef();
254 void ParseFuncdef(); 267 void ParseFuncdef();
255 void writeMemberBuffers(); 268 void writeMemberBuffers();
256 void WriteStringTable(); 269 void WriteStringTable();
257 DataBuffer* ParseExpression (EType reqtype, bool fromhere = false); 270 DataBuffer* ParseExpression (DataType reqtype, bool fromhere = false);
258 EDataHeader GetAssigmentDataHeader (EAssignmentOperator op, Variable* var); 271 DataHeader GetAssigmentDataHeader (AssignmentOperator op, Variable* var);
259 }; 272 };
260 273
261 #endif // BOTC_PARSER_H 274 #endif // BOTC_PARSER_H

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