| 213 | } |
| 214 | |
| 215 | CodeParser::parsingTableEntry CodeParser::lookupParsingTable(int cntState, Token::Kind tokenKind, std::pair<int, int> pos) { |
| 216 | switch (cntState) { |
| 217 | case 1: { |
| 218 | switch (tokenKind) { |
| 219 | case Token::Kind::STM: |
| 220 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 4); |
| 221 | case Token::Kind::IF: |
| 222 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 2); |
| 223 | case Token::Kind::WHILE: |
| 224 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 3); |
| 225 | case Token::Kind::SEQ: |
| 226 | return parsingTableEntry(parsingTableEntry::Action::GOTO, 18); |
| 227 | } |
| 228 | std::cout << "Compile error near (" << pos.first << ", " << pos.second << ")." << std::endl; |
| 229 | exit(-1); |
| 230 | } |
| 231 | case 2: { |
| 232 | switch (tokenKind) { |
| 233 | case Token::Kind::COND: |
| 234 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 6); |
| 235 | } |
| 236 | std::cout << "Compile error near (" << pos.first << ", " << pos.second << ")." << std::endl; |
| 237 | exit(-1); |
| 238 | } |
| 239 | case 3: { |
| 240 | switch (tokenKind) { |
| 241 | case Token::Kind::COND: |
| 242 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 14); |
| 243 | } |
| 244 | std::cout << "Compile error near (" << pos.first << ", " << pos.second << ")." << std::endl; |
| 245 | exit(-1); |
| 246 | } |
| 247 | case 4: { |
| 248 | switch (tokenKind) { |
| 249 | case Token::Kind::STM: |
| 250 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 4); |
| 251 | case Token::Kind::IF: |
| 252 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 2); |
| 253 | case Token::Kind::WHILE: |
| 254 | return parsingTableEntry(parsingTableEntry::Action::SHIFT, 3); |
| 255 | case Token::Kind::RBRACE: |
| 256 | return parsingTableEntry(parsingTableEntry::Action::REDUCE, 4); |
| 257 | case Token::Kind::END: |
| 258 | return parsingTableEntry(parsingTableEntry::Action::REDUCE, 4); |
| 259 | case Token::Kind::SEQ: |
| 260 | return parsingTableEntry(parsingTableEntry::Action::GOTO, 5); |
| 261 | } |
| 262 | std::cout << "Compile error near (" << pos.first << ", " << pos.second << ")." << std::endl; |
| 263 | exit(-1); |
| 264 | } |
| 265 | case 5: { |
| 266 | switch (tokenKind) { |
| 267 | case Token::Kind::RBRACE: |
| 268 | return parsingTableEntry(parsingTableEntry::Action::REDUCE, 5); |
| 269 | case Token::Kind::END: |
| 270 | return parsingTableEntry(parsingTableEntry::Action::REDUCE, 5); |
| 271 | } |
| 272 | std::cout << "Compile error near (" << pos.first << ", " << pos.second << ")." << std::endl; |