parser.py revision 7567:238f99c9f441
1# Copyright (c) 2009 The Hewlett-Packard Development Company 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution; 11# neither the name of the copyright holders nor the names of its 12# contributors may be used to endorse or promote products derived from 13# this software without specific prior written permission. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26# 27# Authors: Nathan Binkert 28 29import os.path 30import re 31import sys 32 33from m5.util import code_formatter 34from m5.util.grammar import Grammar, TokenError, ParseError 35 36import slicc.ast as ast 37import slicc.util as util 38from slicc.symbols import SymbolTable 39 40def read_slicc(sources): 41 if not isinstance(sources, (list,tuple)): 42 sources = [ sources ] 43 44 for source in sources: 45 for sm_file in file(source, "r"): 46 sm_file = sm_file.strip() 47 if not sm_file: 48 continue 49 if sm_file.startswith("#"): 50 continue 51 yield sm_file 52 53class SLICC(Grammar): 54 def __init__(self, protocol, **kwargs): 55 super(SLICC, self).__init__(**kwargs) 56 self.decl_list_vec = [] 57 self.current_file = None 58 self.protocol = protocol 59 self.symtab = SymbolTable(self) 60 61 def codeFormatter(self, *args, **kwargs): 62 code = code_formatter(*args, **kwargs) 63 code['protocol'] = self.protocol 64 return code 65 66 def parse(self, filename): 67 self.current_file = filename 68 f = file(filename, 'r') 69 text = f.read() 70 try: 71 decl_list = super(SLICC, self).parse(text) 72 except (TokenError, ParseError), e: 73 sys.exit("%s: %s:%d" % (e, filename, e.token.lineno)) 74 self.decl_list_vec.append(decl_list) 75 self.current_file = None 76 77 def _load(self, *filenames): 78 filenames = list(filenames) 79 while filenames: 80 f = filenames.pop(0) 81 if isinstance(f, (list, tuple)): 82 filenames[0:0] = list(f) 83 continue 84 85 yield f 86 if f.endswith(".slicc"): 87 dirname,basename = os.path.split(f) 88 filenames[0:0] = [ os.path.join(dirname, x) \ 89 for x in read_slicc(f)] 90 else: 91 assert f.endswith(".sm") 92 self.parse(f) 93 94 def load(self, *filenames, **kwargs): 95 verbose = kwargs.pop("verbose", False) 96 if kwargs: 97 raise TypeError 98 99 gen = self._load(*filenames) 100 if verbose: 101 return gen 102 else: 103 # Run out the generator if we don't want the verbosity 104 for foo in gen: 105 pass 106 107 def findMachines(self): 108 for decl_list in self.decl_list_vec: 109 decl_list.findMachines() 110 111 def generate(self): 112 for decl_list in self.decl_list_vec: 113 decl_list.generate() 114 115 def writeCodeFiles(self, code_path): 116 util.makeDir(code_path) 117 self.symtab.writeCodeFiles(code_path) 118 119 def writeHTMLFiles(self, code_path): 120 util.makeDir(code_path) 121 self.symtab.writeHTMLFiles(code_path) 122 123 def files(self): 124 f = set([ 125 'MachineType.cc', 126 'MachineType.hh', 127 'Types.hh' ]) 128 129 for decl_list in self.decl_list_vec: 130 f |= decl_list.files() 131 132 return f 133 134 t_ignore = '\t ' 135 136 # C or C++ comment (ignore) 137 def t_c_comment(self, t): 138 r'/\*(.|\n)*?\*/' 139 t.lexer.lineno += t.value.count('\n') 140 141 def t_cpp_comment(self, t): 142 r'//.*' 143 144 # Define a rule so we can track line numbers 145 def t_newline(self, t): 146 r'\n+' 147 t.lexer.lineno += len(t.value) 148 149 reserved = { 150 'global' : 'GLOBAL', 151 'machine' : 'MACHINE', 152 'in_port' : 'IN_PORT', 153 'out_port' : 'OUT_PORT', 154 'action' : 'ACTION', 155 'transition' : 'TRANS', 156 'structure' : 'STRUCT', 157 'external_type' : 'EXTERN_TYPE', 158 'enumeration' : 'ENUM', 159 'peek' : 'PEEK', 160 'stall_and_wait' : 'STALL_AND_WAIT', 161 'wake_up_dependents' : 'WAKE_UP_DEPENDENTS', 162 'enqueue' : 'ENQUEUE', 163 'copy_head' : 'COPY_HEAD', 164 'check_allocate' : 'CHECK_ALLOCATE', 165 'check_stop_slots' : 'CHECK_STOP_SLOTS', 166 'static_cast' : 'STATIC_CAST', 167 'if' : 'IF', 168 'else' : 'ELSE', 169 'return' : 'RETURN', 170 'THIS' : 'THIS', 171 'CHIP' : 'CHIP', 172 'void' : 'VOID', 173 'new' : 'NEW', 174 } 175 176 literals = ':[]{}(),=' 177 178 tokens = [ 'EQ', 'NE', 'LT', 'GT', 'LE', 'GE', 179 'LEFTSHIFT', 'RIGHTSHIFT', 180 'NOT', 'AND', 'OR', 181 'PLUS', 'DASH', 'STAR', 'SLASH', 182 'DOUBLE_COLON', 'SEMI', 183 'ASSIGN', 'DOT', 184 'IDENT', 'LIT_BOOL', 'FLOATNUMBER', 'NUMBER', 'STRING' ] 185 tokens += reserved.values() 186 187 t_EQ = r'==' 188 t_NE = r'!=' 189 t_LT = r'<' 190 t_GT = r'>' 191 t_LE = r'<=' 192 t_GE = r'>=' 193 t_LEFTSHIFT = r'<<' 194 t_RIGHTSHIFT = r'>>' 195 t_NOT = r'!' 196 t_AND = r'&&' 197 t_OR = r'\|\|' 198 t_PLUS = r'\+' 199 t_DASH = r'-' 200 t_STAR = r'\*' 201 t_SLASH = r'/' 202 t_DOUBLE_COLON = r'::' 203 t_SEMI = r';' 204 t_ASSIGN = r':=' 205 t_DOT = r'\.' 206 207 precedence = ( 208 ('left', 'AND', 'OR'), 209 ('left', 'EQ', 'NE'), 210 ('left', 'LT', 'GT', 'LE', 'GE'), 211 ('left', 'RIGHTSHIFT', 'LEFTSHIFT'), 212 ('left', 'PLUS', 'DASH'), 213 ('left', 'STAR', 'SLASH'), 214 ('right', 'NOT', 'UMINUS'), 215 ) 216 217 def t_IDENT(self, t): 218 r'[a-zA-Z_][a-zA-Z_0-9]*' 219 if t.value == 'true': 220 t.type = 'LIT_BOOL' 221 t.value = True 222 return t 223 224 if t.value == 'false': 225 t.type = 'LIT_BOOL' 226 t.value = False 227 return t 228 229 # Check for reserved words 230 t.type = self.reserved.get(t.value, 'IDENT') 231 return t 232 233 def t_FLOATNUMBER(self, t): 234 '[0-9]+[.][0-9]+' 235 try: 236 t.value = float(t.value) 237 except ValueError: 238 raise TokenError("Illegal float", t) 239 return t 240 241 def t_NUMBER(self, t): 242 r'[0-9]+' 243 try: 244 t.value = int(t.value) 245 except ValueError: 246 raise TokenError("Illegal number", t) 247 return t 248 249 def t_STRING1(self, t): 250 r'\"[^"\n]*\"' 251 t.type = 'STRING' 252 t.value = t.value[1:-1] 253 return t 254 255 def t_STRING2(self, t): 256 r"\'[^'\n]*\'" 257 t.type = 'STRING' 258 t.value = t.value[1:-1] 259 return t 260 261 def p_file(self, p): 262 "file : decls" 263 p[0] = p[1] 264 265 def p_empty(self, p): 266 "empty :" 267 268 def p_decls(self, p): 269 "decls : declsx" 270 p[0] = ast.DeclListAST(self, p[1]) 271 272 def p_declsx__list(self, p): 273 "declsx : decl declsx" 274 p[0] = [ p[1] ] + p[2] 275 276 def p_declsx__none(self, p): 277 "declsx : empty" 278 p[0] = [] 279 280 def p_decl__machine(self, p): 281 "decl : MACHINE '(' ident pairs ')' ':' params '{' decls '}'" 282 p[0] = ast.MachineAST(self, p[3], p[4], p[7], p[9]) 283 284 def p_decl__action(self, p): 285 "decl : ACTION '(' ident pairs ')' statements" 286 p[0] = ast.ActionDeclAST(self, p[3], p[4], p[6]) 287 288 def p_decl__in_port(self, p): 289 "decl : IN_PORT '(' ident ',' type ',' var pairs ')' statements" 290 p[0] = ast.InPortDeclAST(self, p[3], p[5], p[7], p[8], p[10]) 291 292 def p_decl__out_port(self, p): 293 "decl : OUT_PORT '(' ident ',' type ',' var pairs ')' SEMI" 294 p[0] = ast.OutPortDeclAST(self, p[3], p[5], p[7], p[8]) 295 296 def p_decl__trans0(self, p): 297 "decl : TRANS '(' idents ',' idents ',' ident pairs ')' idents" 298 p[0] = ast.TransitionDeclAST(self, p[3], p[5], p[7], p[8], p[10]) 299 300 def p_decl__trans1(self, p): 301 "decl : TRANS '(' idents ',' idents pairs ')' idents" 302 p[0] = ast.TransitionDeclAST(self, p[3], p[5], None, p[6], p[8]) 303 304 def p_decl__extern0(self, p): 305 "decl : EXTERN_TYPE '(' type pairs ')' SEMI" 306 p[4]["external"] = "yes" 307 p[0] = ast.TypeDeclAST(self, p[3], p[4], []) 308 309 def p_decl__extern1(self, p): 310 "decl : EXTERN_TYPE '(' type pairs ')' '{' type_methods '}'" 311 p[4]["external"] = "yes" 312 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 313 314 def p_decl__global(self, p): 315 "decl : GLOBAL '(' type pairs ')' '{' type_members '}'" 316 p[4]["global"] = "yes" 317 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 318 319 def p_decl__struct(self, p): 320 "decl : STRUCT '(' type pairs ')' '{' type_members '}'" 321 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 322 323 def p_decl__enum(self, p): 324 "decl : ENUM '(' type pairs ')' '{' type_enums '}'" 325 p[4]["enumeration"] = "yes" 326 p[0] = ast.EnumDeclAST(self, p[3], p[4], p[7]) 327 328 def p_decl__object(self, p): 329 "decl : type ident pairs SEMI" 330 p[0] = ast.ObjDeclAST(self, p[1], p[2], p[3]) 331 332 def p_decl__func_decl(self, p): 333 """decl : void ident '(' params ')' pairs SEMI 334 | type ident '(' params ')' pairs SEMI""" 335 p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], None) 336 337 def p_decl__func_def(self, p): 338 """decl : void ident '(' params ')' pairs statements 339 | type ident '(' params ')' pairs statements""" 340 p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], p[7]) 341 342 # Type fields 343 def p_type_members__list(self, p): 344 "type_members : type_member type_members" 345 p[0] = [ p[1] ] + p[2] 346 347 def p_type_members__empty(self, p): 348 "type_members : empty" 349 p[0] = [] 350 351 def p_type_member__1(self, p): 352 "type_member : type ident pairs SEMI" 353 p[0] = ast.TypeFieldMemberAST(self, p[1], p[2], p[3], None) 354 355 def p_type_member__2(self, p): 356 "type_member : type ident ASSIGN expr SEMI" 357 p[0] = ast.TypeFieldMemberAST(self, p[1], p[2], 358 ast.PairListAST(self), p[4]) 359 360 # Methods 361 def p_type_methods__list(self, p): 362 "type_methods : type_method type_methods" 363 p[0] = [ p[1] ] + p[2] 364 365 def p_type_methods(self, p): 366 "type_methods : empty" 367 p[0] = [] 368 369 def p_type_method(self, p): 370 "type_method : type_or_void ident '(' types ')' pairs SEMI" 371 p[0] = ast.TypeFieldMethodAST(self, p[1], p[2], p[4], p[6]) 372 373 # Enum fields 374 def p_type_enums__list(self, p): 375 "type_enums : type_enum type_enums" 376 p[0] = [ p[1] ] + p[2] 377 378 def p_type_enums__empty(self, p): 379 "type_enums : empty" 380 p[0] = [] 381 382 def p_type_enum(self, p): 383 "type_enum : ident pairs SEMI" 384 p[0] = ast.TypeFieldEnumAST(self, p[1], p[2]) 385 386 # Type 387 def p_types__multiple(self, p): 388 "types : type ',' types" 389 p[0] = [ p[1] ] + p[3] 390 391 def p_types__one(self, p): 392 "types : type" 393 p[0] = [ p[1] ] 394 395 def p_types__empty(self, p): 396 "types : empty" 397 p[0] = [] 398 399 def p_typestr__multi(self, p): 400 "typestr : typestr DOUBLE_COLON ident" 401 p[0] = '%s::%s' % (p[1], p[3]) 402 403 def p_typestr__single(self, p): 404 "typestr : ident" 405 p[0] = p[1] 406 407 def p_type__one(self, p): 408 "type : typestr" 409 p[0] = ast.TypeAST(self, p[1]) 410 411 def p_void(self, p): 412 "void : VOID" 413 p[0] = ast.TypeAST(self, p[1]) 414 415 def p_type_or_void(self, p): 416 """type_or_void : type 417 | void""" 418 p[0] = p[1] 419 420 # Formal Param 421 def p_params__many(self, p): 422 "params : param ',' params" 423 p[0] = [ p[1] ] + p[3] 424 425 def p_params__one(self, p): 426 "params : param" 427 p[0] = [ p[1] ] 428 429 def p_params__none(self, p): 430 "params : empty" 431 p[0] = [] 432 433 def p_param(self, p): 434 "param : type ident" 435 p[0] = ast.FormalParamAST(self, p[1], p[2]) 436 437 def p_param__pointer(self, p): 438 "param : type STAR ident" 439 p[0] = ast.FormalParamAST(self, p[1], p[3], None, True) 440 441 def p_param__pointer_default(self, p): 442 "param : type STAR ident '=' STRING" 443 p[0] = ast.FormalParamAST(self, p[1], p[3], p[5], True) 444 445 def p_param__default_number(self, p): 446 "param : type ident '=' NUMBER" 447 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 448 449 def p_param__default_bool(self, p): 450 "param : type ident '=' LIT_BOOL" 451 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 452 453 def p_param__default_string(self, p): 454 "param : type ident '=' STRING" 455 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 456 457 # Idents and lists 458 def p_idents__braced(self, p): 459 "idents : '{' identx '}'" 460 p[0] = p[2] 461 462 def p_idents__bare(self, p): 463 "idents : ident" 464 p[0] = [ p[1] ] 465 466 def p_identx__multiple_1(self, p): 467 """identx : ident SEMI identx 468 | ident ',' identx""" 469 p[0] = [ p[1] ] + p[3] 470 471 def p_identx__multiple_2(self, p): 472 "identx : ident identx" 473 p[0] = [ p[1] ] + p[2] 474 475 def p_identx__single(self, p): 476 "identx : empty" 477 p[0] = [ ] 478 479 def p_ident(self, p): 480 "ident : IDENT" 481 p[0] = p[1] 482 483 # Pair and pair lists 484 def p_pairs__list(self, p): 485 "pairs : ',' pairsx" 486 p[0] = p[2] 487 488 def p_pairs__empty(self, p): 489 "pairs : empty" 490 p[0] = ast.PairListAST(self) 491 492 def p_pairsx__many(self, p): 493 "pairsx : pair ',' pairsx" 494 p[0] = p[3] 495 p[0].addPair(p[1]) 496 497 def p_pairsx__one(self, p): 498 "pairsx : pair" 499 p[0] = ast.PairListAST(self) 500 p[0].addPair(p[1]) 501 502 def p_pair__assign(self, p): 503 """pair : ident '=' STRING 504 | ident '=' ident 505 | ident '=' NUMBER""" 506 p[0] = ast.PairAST(self, p[1], p[3]) 507 508 def p_pair__literal(self, p): 509 "pair : STRING" 510 p[0] = ast.PairAST(self, "short", p[1]) 511 512 # Below are the rules for action descriptions 513 def p_statements__inner(self, p): 514 "statements : '{' statements_inner '}'" 515 p[0] = ast.StatementListAST(self, p[2]) 516 517 def p_statements__none(self, p): 518 "statements : '{' '}'" 519 p[0] = ast.StatementListAST(self, []) 520 521 def p_statements_inner__many(self, p): 522 "statements_inner : statement statements_inner" 523 p[0] = [ p[1] ] + p[2] 524 525 def p_statements_inner__one(self, p): 526 "statements_inner : statement" 527 p[0] = [ p[1] ] 528 529 def p_exprs__multiple(self, p): 530 "exprs : expr ',' exprs" 531 p[0] = [ p[1] ] + p[3] 532 533 def p_exprs__one(self, p): 534 "exprs : expr" 535 p[0] = [ p[1] ] 536 537 def p_exprs__empty(self, p): 538 "exprs : empty""" 539 p[0] = [] 540 541 def p_statement__expression(self, p): 542 "statement : expr SEMI" 543 p[0] = ast.ExprStatementAST(self, p[1]) 544 545 def p_statement__assign(self, p): 546 "statement : expr ASSIGN expr SEMI" 547 p[0] = ast.AssignStatementAST(self, p[1], p[3]) 548 549 def p_statement__enqueue(self, p): 550 "statement : ENQUEUE '(' var ',' type pairs ')' statements" 551 p[0] = ast.EnqueueStatementAST(self, p[3], p[5], p[6], p[8]) 552 553 def p_statement__stall_and_wait(self, p): 554 "statement : STALL_AND_WAIT '(' var ',' var ')' SEMI" 555 p[0] = ast.StallAndWaitStatementAST(self, p[3], p[5]) 556 557 def p_statement__wake_up_dependents(self, p): 558 "statement : WAKE_UP_DEPENDENTS '(' var ')' SEMI" 559 p[0] = ast.WakeUpDependentsStatementAST(self, p[3]) 560 561 def p_statement__peek(self, p): 562 "statement : PEEK '(' var ',' type pairs ')' statements" 563 p[0] = ast.PeekStatementAST(self, p[3], p[5], p[6], p[8], "peek") 564 565 def p_statement__copy_head(self, p): 566 "statement : COPY_HEAD '(' var ',' var pairs ')' SEMI" 567 p[0] = ast.CopyHeadStatementAST(self, p[3], p[5], p[6]) 568 569 def p_statement__check_allocate(self, p): 570 "statement : CHECK_ALLOCATE '(' var ')' SEMI" 571 p[0] = ast.CheckAllocateStatementAST(self, p[3]) 572 573 def p_statement__check_stop(self, p): 574 "statement : CHECK_STOP_SLOTS '(' var ',' STRING ',' STRING ')' SEMI" 575 p[0] = ast.CheckStopStatementAST(self, p[3], p[5], p[7]) 576 577 def p_statement__static_cast(self, p): 578 "aexpr : STATIC_CAST '(' type ',' expr ')'" 579 p[0] = ast.StaticCastAST(self, p[3], p[5]) 580 581 def p_statement__return(self, p): 582 "statement : RETURN expr SEMI" 583 p[0] = ast.ReturnStatementAST(self, p[2]) 584 585 def p_statement__if(self, p): 586 "statement : if_statement" 587 p[0] = p[1] 588 589 def p_if_statement__if(self, p): 590 "if_statement : IF '(' expr ')' statements" 591 p[0] = ast.IfStatementAST(self, p[3], p[5], None) 592 593 def p_if_statement__if_else(self, p): 594 "if_statement : IF '(' expr ')' statements ELSE statements" 595 p[0] = ast.IfStatementAST(self, p[3], p[5], p[7]) 596 597 def p_statement__if_else_if(self, p): 598 "if_statement : IF '(' expr ')' statements ELSE if_statement" 599 p[0] = ast.IfStatementAST(self, p[3], p[5], 600 ast.StatementListAST(self, p[7])) 601 602 def p_expr__var(self, p): 603 "aexpr : var" 604 p[0] = p[1] 605 606 def p_expr__literal(self, p): 607 "aexpr : literal" 608 p[0] = p[1] 609 610 def p_expr__enumeration(self, p): 611 "aexpr : enumeration" 612 p[0] = p[1] 613 614 def p_expr__func_call(self, p): 615 "aexpr : ident '(' exprs ')'" 616 p[0] = ast.FuncCallExprAST(self, p[1], p[3]) 617 618 def p_expr__new(self, p): 619 "aexpr : NEW type" 620 p[0] = ast.NewExprAST(self, p[2]) 621 622 # globally access a local chip component and call a method 623 def p_expr__local_chip_method(self, p): 624 "aexpr : THIS DOT var '[' expr ']' DOT var DOT ident '(' exprs ')'" 625 p[0] = ast.LocalChipMethodAST(self, p[3], p[5], p[8], p[10], p[12]) 626 627 # globally access a local chip component and access a data member 628 def p_expr__local_chip_member(self, p): 629 "aexpr : THIS DOT var '[' expr ']' DOT var DOT field" 630 p[0] = ast.LocalChipMemberAST(self, p[3], p[5], p[8], p[10]) 631 632 # globally access a specified chip component and call a method 633 def p_expr__specified_chip_method(self, p): 634 "aexpr : CHIP '[' expr ']' DOT var '[' expr ']' DOT var DOT ident '(' exprs ')'" 635 p[0] = ast.SpecifiedChipMethodAST(self, p[3], p[6], p[8], p[11], p[13], 636 p[15]) 637 638 # globally access a specified chip component and access a data member 639 def p_expr__specified_chip_member(self, p): 640 "aexpr : CHIP '[' expr ']' DOT var '[' expr ']' DOT var DOT field" 641 p[0] = ast.SpecifiedChipMemberAST(self, p[3], p[6], p[8], p[11], p[13]) 642 643 def p_expr__member(self, p): 644 "aexpr : aexpr DOT ident" 645 p[0] = ast.MemberExprAST(self, p[1], p[3]) 646 647 def p_expr__member_method_call(self, p): 648 "aexpr : aexpr DOT ident '(' exprs ')'" 649 p[0] = ast.MemberMethodCallExprAST(self, p[1], p[3], p[5]) 650 651 def p_expr__member_method_call_lookup(self, p): 652 "aexpr : aexpr '[' exprs ']'" 653 p[0] = ast.MemberMethodCallExprAST(self, p[1], "lookup", p[3]) 654 655 def p_expr__class_method_call(self, p): 656 "aexpr : type DOUBLE_COLON ident '(' exprs ')'" 657 p[0] = ast.ClassMethodCallExprAST(self, p[1], p[3], p[5]) 658 659 def p_expr__aexpr(self, p): 660 "expr : aexpr" 661 p[0] = p[1] 662 663 def p_expr__binary_op(self, p): 664 """expr : expr STAR expr 665 | expr SLASH expr 666 | expr PLUS expr 667 | expr DASH expr 668 | expr LT expr 669 | expr GT expr 670 | expr LE expr 671 | expr GE expr 672 | expr EQ expr 673 | expr NE expr 674 | expr AND expr 675 | expr OR expr 676 | expr RIGHTSHIFT expr 677 | expr LEFTSHIFT expr""" 678 p[0] = ast.InfixOperatorExprAST(self, p[1], p[2], p[3]) 679 680 # FIXME - unary not 681 def p_expr__unary_op(self, p): 682 """expr : NOT expr 683 | DASH expr %prec UMINUS""" 684 p[0] = PrefixOperatorExpr(p[1], p[2]) 685 686 def p_expr__parens(self, p): 687 "aexpr : '(' expr ')'" 688 p[0] = p[2] 689 690 def p_literal__string(self, p): 691 "literal : STRING" 692 p[0] = ast.LiteralExprAST(self, p[1], "std::string") 693 694 def p_literal__number(self, p): 695 "literal : NUMBER" 696 p[0] = ast.LiteralExprAST(self, p[1], "int") 697 698 def p_literal__float(self, p): 699 "literal : FLOATNUMBER" 700 p[0] = ast.LiteralExprAST(self, p[1], "int") 701 702 def p_literal__bool(self, p): 703 "literal : LIT_BOOL" 704 p[0] = ast.LiteralExprAST(self, p[1], "bool") 705 706 def p_enumeration(self, p): 707 "enumeration : ident ':' ident" 708 p[0] = ast.EnumExprAST(self, ast.TypeAST(self, p[1]), p[3]) 709 710 def p_var(self, p): 711 "var : ident" 712 p[0] = ast.VarExprAST(self, p[1]) 713 714 def p_field(self, p): 715 "field : ident" 716 p[0] = p[1] 717