parser.py revision 8154:f3d1493787d4
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 'state_declaration' : 'STATE_DECL', 160 'peek' : 'PEEK', 161 'stall_and_wait' : 'STALL_AND_WAIT', 162 'wake_up_dependents' : 'WAKE_UP_DEPENDENTS', 163 'enqueue' : 'ENQUEUE', 164 'copy_head' : 'COPY_HEAD', 165 'check_allocate' : 'CHECK_ALLOCATE', 166 'check_stop_slots' : 'CHECK_STOP_SLOTS', 167 'static_cast' : 'STATIC_CAST', 168 'if' : 'IF', 169 'is_valid' : 'IS_VALID', 170 'is_invalid' : 'IS_INVALID', 171 'else' : 'ELSE', 172 'return' : 'RETURN', 173 'THIS' : 'THIS', 174 'CHIP' : 'CHIP', 175 'void' : 'VOID', 176 'new' : 'NEW', 177 'OOD' : 'OOD', 178 } 179 180 literals = ':[]{}(),=' 181 182 tokens = [ 'EQ', 'NE', 'LT', 'GT', 'LE', 'GE', 183 'LEFTSHIFT', 'RIGHTSHIFT', 184 'NOT', 'AND', 'OR', 185 'PLUS', 'DASH', 'STAR', 'SLASH', 186 'DOUBLE_COLON', 'SEMI', 187 'ASSIGN', 'DOT', 188 'IDENT', 'LIT_BOOL', 'FLOATNUMBER', 'NUMBER', 'STRING' ] 189 tokens += reserved.values() 190 191 t_EQ = r'==' 192 t_NE = r'!=' 193 t_LT = r'<' 194 t_GT = r'>' 195 t_LE = r'<=' 196 t_GE = r'>=' 197 t_LEFTSHIFT = r'<<' 198 t_RIGHTSHIFT = r'>>' 199 t_NOT = r'!' 200 t_AND = r'&&' 201 t_OR = r'\|\|' 202 t_PLUS = r'\+' 203 t_DASH = r'-' 204 t_STAR = r'\*' 205 t_SLASH = r'/' 206 t_DOUBLE_COLON = r'::' 207 t_SEMI = r';' 208 t_ASSIGN = r':=' 209 t_DOT = r'\.' 210 211 precedence = ( 212 ('left', 'AND', 'OR'), 213 ('left', 'EQ', 'NE'), 214 ('left', 'LT', 'GT', 'LE', 'GE'), 215 ('left', 'RIGHTSHIFT', 'LEFTSHIFT'), 216 ('left', 'PLUS', 'DASH'), 217 ('left', 'STAR', 'SLASH'), 218 ('right', 'NOT', 'UMINUS'), 219 ) 220 221 def t_IDENT(self, t): 222 r'[a-zA-Z_][a-zA-Z_0-9]*' 223 if t.value == 'true': 224 t.type = 'LIT_BOOL' 225 t.value = True 226 return t 227 228 if t.value == 'false': 229 t.type = 'LIT_BOOL' 230 t.value = False 231 return t 232 233 # Check for reserved words 234 t.type = self.reserved.get(t.value, 'IDENT') 235 return t 236 237 def t_FLOATNUMBER(self, t): 238 '[0-9]+[.][0-9]+' 239 try: 240 t.value = float(t.value) 241 except ValueError: 242 raise TokenError("Illegal float", t) 243 return t 244 245 def t_NUMBER(self, t): 246 r'[0-9]+' 247 try: 248 t.value = int(t.value) 249 except ValueError: 250 raise TokenError("Illegal number", t) 251 return t 252 253 def t_STRING1(self, t): 254 r'\"[^"\n]*\"' 255 t.type = 'STRING' 256 t.value = t.value[1:-1] 257 return t 258 259 def t_STRING2(self, t): 260 r"\'[^'\n]*\'" 261 t.type = 'STRING' 262 t.value = t.value[1:-1] 263 return t 264 265 def p_file(self, p): 266 "file : decls" 267 p[0] = p[1] 268 269 def p_empty(self, p): 270 "empty :" 271 272 def p_decls(self, p): 273 "decls : declsx" 274 p[0] = ast.DeclListAST(self, p[1]) 275 276 def p_declsx__list(self, p): 277 "declsx : decl declsx" 278 p[0] = [ p[1] ] + p[2] 279 280 def p_declsx__none(self, p): 281 "declsx : empty" 282 p[0] = [] 283 284 def p_decl__machine(self, p): 285 "decl : MACHINE '(' ident pairs ')' ':' params '{' decls '}'" 286 p[0] = ast.MachineAST(self, p[3], p[4], p[7], p[9]) 287 288 def p_decl__action(self, p): 289 "decl : ACTION '(' ident pairs ')' statements" 290 p[0] = ast.ActionDeclAST(self, p[3], p[4], p[6]) 291 292 def p_decl__in_port(self, p): 293 "decl : IN_PORT '(' ident ',' type ',' var pairs ')' statements" 294 p[0] = ast.InPortDeclAST(self, p[3], p[5], p[7], p[8], p[10]) 295 296 def p_decl__out_port(self, p): 297 "decl : OUT_PORT '(' ident ',' type ',' var pairs ')' SEMI" 298 p[0] = ast.OutPortDeclAST(self, p[3], p[5], p[7], p[8]) 299 300 def p_decl__trans0(self, p): 301 "decl : TRANS '(' idents ',' idents ',' ident pairs ')' idents" 302 p[0] = ast.TransitionDeclAST(self, p[3], p[5], p[7], p[8], p[10]) 303 304 def p_decl__trans1(self, p): 305 "decl : TRANS '(' idents ',' idents pairs ')' idents" 306 p[0] = ast.TransitionDeclAST(self, p[3], p[5], None, p[6], p[8]) 307 308 def p_decl__extern0(self, p): 309 "decl : EXTERN_TYPE '(' type pairs ')' SEMI" 310 p[4]["external"] = "yes" 311 p[0] = ast.TypeDeclAST(self, p[3], p[4], []) 312 313 def p_decl__extern1(self, p): 314 "decl : EXTERN_TYPE '(' type pairs ')' '{' type_methods '}'" 315 p[4]["external"] = "yes" 316 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 317 318 def p_decl__global(self, p): 319 "decl : GLOBAL '(' type pairs ')' '{' type_members '}'" 320 p[4]["global"] = "yes" 321 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 322 323 def p_decl__struct(self, p): 324 "decl : STRUCT '(' type pairs ')' '{' type_members '}'" 325 p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 326 327 def p_decl__enum(self, p): 328 "decl : ENUM '(' type pairs ')' '{' type_enums '}'" 329 p[4]["enumeration"] = "yes" 330 p[0] = ast.EnumDeclAST(self, p[3], p[4], p[7]) 331 332 def p_decl__state_decl(self, p): 333 "decl : STATE_DECL '(' type pairs ')' '{' type_states '}'" 334 p[4]["enumeration"] = "yes" 335 p[4]["state_decl"] = "yes" 336 p[0] = ast.StateDeclAST(self, p[3], p[4], p[7]) 337 338 def p_decl__object(self, p): 339 "decl : type ident pairs SEMI" 340 p[0] = ast.ObjDeclAST(self, p[1], p[2], p[3]) 341 342 def p_decl__func_decl(self, p): 343 """decl : void ident '(' params ')' pairs SEMI 344 | type ident '(' params ')' pairs SEMI""" 345 p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], None) 346 347 def p_decl__func_def(self, p): 348 """decl : void ident '(' params ')' pairs statements 349 | type ident '(' params ')' pairs statements""" 350 p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], p[7]) 351 352 # Type fields 353 def p_type_members__list(self, p): 354 "type_members : type_member type_members" 355 p[0] = [ p[1] ] + p[2] 356 357 def p_type_members__empty(self, p): 358 "type_members : empty" 359 p[0] = [] 360 361 def p_type_member__1(self, p): 362 "type_member : type ident pairs SEMI" 363 p[0] = ast.TypeFieldMemberAST(self, p[1], p[2], p[3], None) 364 365 def p_type_member__2(self, p): 366 "type_member : type ident ASSIGN expr SEMI" 367 p[0] = ast.TypeFieldMemberAST(self, p[1], p[2], 368 ast.PairListAST(self), p[4]) 369 370 # Methods 371 def p_type_methods__list(self, p): 372 "type_methods : type_method type_methods" 373 p[0] = [ p[1] ] + p[2] 374 375 def p_type_methods(self, p): 376 "type_methods : empty" 377 p[0] = [] 378 379 def p_type_method(self, p): 380 "type_method : type_or_void ident '(' types ')' pairs SEMI" 381 p[0] = ast.TypeFieldMethodAST(self, p[1], p[2], p[4], p[6]) 382 383 # Enum fields 384 def p_type_enums__list(self, p): 385 "type_enums : type_enum type_enums" 386 p[0] = [ p[1] ] + p[2] 387 388 def p_type_enums__empty(self, p): 389 "type_enums : empty" 390 p[0] = [] 391 392 def p_type_enum(self, p): 393 "type_enum : ident pairs SEMI" 394 p[0] = ast.TypeFieldEnumAST(self, p[1], p[2]) 395 396 # States 397 def p_type_states__list(self, p): 398 "type_states : type_state type_states" 399 p[0] = [ p[1] ] + p[2] 400 401 def p_type_states__empty(self, p): 402 "type_states : empty" 403 p[0] = [] 404 405 def p_type_state(self, p): 406 "type_state : ident ',' enumeration pairs SEMI" 407 p[0] = ast.TypeFieldStateAST(self, p[1], p[3], p[4]) 408 409 # Type 410 def p_types__multiple(self, p): 411 "types : type ',' types" 412 p[0] = [ p[1] ] + p[3] 413 414 def p_types__one(self, p): 415 "types : type" 416 p[0] = [ p[1] ] 417 418 def p_types__empty(self, p): 419 "types : empty" 420 p[0] = [] 421 422 def p_typestr__multi(self, p): 423 "typestr : typestr DOUBLE_COLON ident" 424 p[0] = '%s::%s' % (p[1], p[3]) 425 426 def p_typestr__single(self, p): 427 "typestr : ident" 428 p[0] = p[1] 429 430 def p_type__one(self, p): 431 "type : typestr" 432 p[0] = ast.TypeAST(self, p[1]) 433 434 def p_void(self, p): 435 "void : VOID" 436 p[0] = ast.TypeAST(self, p[1]) 437 438 def p_type_or_void(self, p): 439 """type_or_void : type 440 | void""" 441 p[0] = p[1] 442 443 # Formal Param 444 def p_params__many(self, p): 445 "params : param ',' params" 446 p[0] = [ p[1] ] + p[3] 447 448 def p_params__one(self, p): 449 "params : param" 450 p[0] = [ p[1] ] 451 452 def p_params__none(self, p): 453 "params : empty" 454 p[0] = [] 455 456 def p_param(self, p): 457 "param : type ident" 458 p[0] = ast.FormalParamAST(self, p[1], p[2]) 459 460 def p_param__pointer(self, p): 461 "param : type STAR ident" 462 p[0] = ast.FormalParamAST(self, p[1], p[3], None, True) 463 464 def p_param__pointer_default(self, p): 465 "param : type STAR ident '=' STRING" 466 p[0] = ast.FormalParamAST(self, p[1], p[3], p[5], True) 467 468 def p_param__default_number(self, p): 469 "param : type ident '=' NUMBER" 470 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 471 472 def p_param__default_bool(self, p): 473 "param : type ident '=' LIT_BOOL" 474 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 475 476 def p_param__default_string(self, p): 477 "param : type ident '=' STRING" 478 p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 479 480 # Idents and lists 481 def p_idents__braced(self, p): 482 "idents : '{' identx '}'" 483 p[0] = p[2] 484 485 def p_idents__bare(self, p): 486 "idents : ident" 487 p[0] = [ p[1] ] 488 489 def p_identx__multiple_1(self, p): 490 """identx : ident SEMI identx 491 | ident ',' identx""" 492 p[0] = [ p[1] ] + p[3] 493 494 def p_identx__multiple_2(self, p): 495 "identx : ident identx" 496 p[0] = [ p[1] ] + p[2] 497 498 def p_identx__single(self, p): 499 "identx : empty" 500 p[0] = [ ] 501 502 def p_ident(self, p): 503 "ident : IDENT" 504 p[0] = p[1] 505 506 # Pair and pair lists 507 def p_pairs__list(self, p): 508 "pairs : ',' pairsx" 509 p[0] = p[2] 510 511 def p_pairs__empty(self, p): 512 "pairs : empty" 513 p[0] = ast.PairListAST(self) 514 515 def p_pairsx__many(self, p): 516 "pairsx : pair ',' pairsx" 517 p[0] = p[3] 518 p[0].addPair(p[1]) 519 520 def p_pairsx__one(self, p): 521 "pairsx : pair" 522 p[0] = ast.PairListAST(self) 523 p[0].addPair(p[1]) 524 525 def p_pair__assign(self, p): 526 """pair : ident '=' STRING 527 | ident '=' ident 528 | ident '=' NUMBER""" 529 p[0] = ast.PairAST(self, p[1], p[3]) 530 531 def p_pair__literal(self, p): 532 "pair : STRING" 533 p[0] = ast.PairAST(self, "short", p[1]) 534 535 # Below are the rules for action descriptions 536 def p_statements__inner(self, p): 537 "statements : '{' statements_inner '}'" 538 p[0] = ast.StatementListAST(self, p[2]) 539 540 def p_statements__none(self, p): 541 "statements : '{' '}'" 542 p[0] = ast.StatementListAST(self, []) 543 544 def p_statements_inner__many(self, p): 545 "statements_inner : statement statements_inner" 546 p[0] = [ p[1] ] + p[2] 547 548 def p_statements_inner__one(self, p): 549 "statements_inner : statement" 550 p[0] = [ p[1] ] 551 552 def p_exprs__multiple(self, p): 553 "exprs : expr ',' exprs" 554 p[0] = [ p[1] ] + p[3] 555 556 def p_exprs__one(self, p): 557 "exprs : expr" 558 p[0] = [ p[1] ] 559 560 def p_exprs__empty(self, p): 561 "exprs : empty""" 562 p[0] = [] 563 564 def p_statement__expression(self, p): 565 "statement : expr SEMI" 566 p[0] = ast.ExprStatementAST(self, p[1]) 567 568 def p_statement__assign(self, p): 569 "statement : expr ASSIGN expr SEMI" 570 p[0] = ast.AssignStatementAST(self, p[1], p[3]) 571 572 def p_statement__enqueue(self, p): 573 "statement : ENQUEUE '(' var ',' type pairs ')' statements" 574 p[0] = ast.EnqueueStatementAST(self, p[3], p[5], p[6], p[8]) 575 576 def p_statement__stall_and_wait(self, p): 577 "statement : STALL_AND_WAIT '(' var ',' var ')' SEMI" 578 p[0] = ast.StallAndWaitStatementAST(self, p[3], p[5]) 579 580 def p_statement__wake_up_dependents(self, p): 581 "statement : WAKE_UP_DEPENDENTS '(' var ')' SEMI" 582 p[0] = ast.WakeUpDependentsStatementAST(self, p[3]) 583 584 def p_statement__peek(self, p): 585 "statement : PEEK '(' var ',' type pairs ')' statements" 586 p[0] = ast.PeekStatementAST(self, p[3], p[5], p[6], p[8], "peek") 587 588 def p_statement__copy_head(self, p): 589 "statement : COPY_HEAD '(' var ',' var pairs ')' SEMI" 590 p[0] = ast.CopyHeadStatementAST(self, p[3], p[5], p[6]) 591 592 def p_statement__check_allocate(self, p): 593 "statement : CHECK_ALLOCATE '(' var ')' SEMI" 594 p[0] = ast.CheckAllocateStatementAST(self, p[3]) 595 596 def p_statement__check_stop(self, p): 597 "statement : CHECK_STOP_SLOTS '(' var ',' STRING ',' STRING ')' SEMI" 598 p[0] = ast.CheckStopStatementAST(self, p[3], p[5], p[7]) 599 600 def p_statement__static_cast(self, p): 601 "aexpr : STATIC_CAST '(' type ',' expr ')'" 602 p[0] = ast.StaticCastAST(self, p[3], "ref", p[5]) 603 604 def p_statement__static_cast_ptr(self, p): 605 "aexpr : STATIC_CAST '(' type ',' STRING ',' expr ')'" 606 p[0] = ast.StaticCastAST(self, p[3], p[5], p[7]) 607 608 def p_statement__return(self, p): 609 "statement : RETURN expr SEMI" 610 p[0] = ast.ReturnStatementAST(self, p[2]) 611 612 def p_statement__if(self, p): 613 "statement : if_statement" 614 p[0] = p[1] 615 616 def p_if_statement__if(self, p): 617 "if_statement : IF '(' expr ')' statements" 618 p[0] = ast.IfStatementAST(self, p[3], p[5], None) 619 620 def p_if_statement__if_else(self, p): 621 "if_statement : IF '(' expr ')' statements ELSE statements" 622 p[0] = ast.IfStatementAST(self, p[3], p[5], p[7]) 623 624 def p_statement__if_else_if(self, p): 625 "if_statement : IF '(' expr ')' statements ELSE if_statement" 626 p[0] = ast.IfStatementAST(self, p[3], p[5], 627 ast.StatementListAST(self, p[7])) 628 629 def p_expr__var(self, p): 630 "aexpr : var" 631 p[0] = p[1] 632 633 def p_expr__localvar(self, p): 634 "aexpr : type ident" 635 p[0] = ast.LocalVariableAST(self, p[1], p[2]) 636 637 def p_expr__literal(self, p): 638 "aexpr : literal" 639 p[0] = p[1] 640 641 def p_expr__enumeration(self, p): 642 "aexpr : enumeration" 643 p[0] = p[1] 644 645 def p_expr__func_call(self, p): 646 "aexpr : ident '(' exprs ')'" 647 p[0] = ast.FuncCallExprAST(self, p[1], p[3]) 648 649 def p_expr__new(self, p): 650 "aexpr : NEW type" 651 p[0] = ast.NewExprAST(self, p[2]) 652 653 def p_expr__null(self, p): 654 "aexpr : OOD" 655 p[0] = ast.OodAST(self) 656 657 # globally access a local chip component and call a method 658 def p_expr__local_chip_method(self, p): 659 "aexpr : THIS DOT var '[' expr ']' DOT var DOT ident '(' exprs ')'" 660 p[0] = ast.LocalChipMethodAST(self, p[3], p[5], p[8], p[10], p[12]) 661 662 # globally access a local chip component and access a data member 663 def p_expr__local_chip_member(self, p): 664 "aexpr : THIS DOT var '[' expr ']' DOT var DOT field" 665 p[0] = ast.LocalChipMemberAST(self, p[3], p[5], p[8], p[10]) 666 667 # globally access a specified chip component and call a method 668 def p_expr__specified_chip_method(self, p): 669 "aexpr : CHIP '[' expr ']' DOT var '[' expr ']' DOT var DOT ident '(' exprs ')'" 670 p[0] = ast.SpecifiedChipMethodAST(self, p[3], p[6], p[8], p[11], p[13], 671 p[15]) 672 673 # globally access a specified chip component and access a data member 674 def p_expr__specified_chip_member(self, p): 675 "aexpr : CHIP '[' expr ']' DOT var '[' expr ']' DOT var DOT field" 676 p[0] = ast.SpecifiedChipMemberAST(self, p[3], p[6], p[8], p[11], p[13]) 677 678 def p_expr__member(self, p): 679 "aexpr : aexpr DOT ident" 680 p[0] = ast.MemberExprAST(self, p[1], p[3]) 681 682 def p_expr__member_method_call(self, p): 683 "aexpr : aexpr DOT ident '(' exprs ')'" 684 p[0] = ast.MemberMethodCallExprAST(self, p[1], p[3], p[5]) 685 686 def p_expr__member_method_call_lookup(self, p): 687 "aexpr : aexpr '[' exprs ']'" 688 p[0] = ast.MemberMethodCallExprAST(self, p[1], "lookup", p[3]) 689 690 def p_expr__class_method_call(self, p): 691 "aexpr : type DOUBLE_COLON ident '(' exprs ')'" 692 p[0] = ast.ClassMethodCallExprAST(self, p[1], p[3], p[5]) 693 694 def p_expr__aexpr(self, p): 695 "expr : aexpr" 696 p[0] = p[1] 697 698 def p_expr__binary_op(self, p): 699 """expr : expr STAR expr 700 | expr SLASH expr 701 | expr PLUS expr 702 | expr DASH expr 703 | expr LT expr 704 | expr GT expr 705 | expr LE expr 706 | expr GE expr 707 | expr EQ expr 708 | expr NE expr 709 | expr AND expr 710 | expr OR expr 711 | expr RIGHTSHIFT expr 712 | expr LEFTSHIFT expr""" 713 p[0] = ast.InfixOperatorExprAST(self, p[1], p[2], p[3]) 714 715 # FIXME - unary not 716 def p_expr__unary_op(self, p): 717 """expr : NOT expr 718 | DASH expr %prec UMINUS""" 719 p[0] = PrefixOperatorExpr(p[1], p[2]) 720 721 def p_expr__parens(self, p): 722 "aexpr : '(' expr ')'" 723 p[0] = p[2] 724 725 def p_expr__is_valid_ptr(self, p): 726 "aexpr : IS_VALID '(' var ')'" 727 p[0] = ast.IsValidPtrExprAST(self, p[3], True) 728 729 def p_expr__is_invalid_ptr(self, p): 730 "aexpr : IS_INVALID '(' var ')'" 731 p[0] = ast.IsValidPtrExprAST(self, p[3], False) 732 733 def p_literal__string(self, p): 734 "literal : STRING" 735 p[0] = ast.LiteralExprAST(self, p[1], "std::string") 736 737 def p_literal__number(self, p): 738 "literal : NUMBER" 739 p[0] = ast.LiteralExprAST(self, p[1], "int") 740 741 def p_literal__float(self, p): 742 "literal : FLOATNUMBER" 743 p[0] = ast.LiteralExprAST(self, p[1], "int") 744 745 def p_literal__bool(self, p): 746 "literal : LIT_BOOL" 747 p[0] = ast.LiteralExprAST(self, p[1], "bool") 748 749 def p_enumeration(self, p): 750 "enumeration : ident ':' ident" 751 p[0] = ast.EnumExprAST(self, ast.TypeAST(self, p[1]), p[3]) 752 753 def p_var(self, p): 754 "var : ident" 755 p[0] = ast.VarExprAST(self, p[1]) 756 757 def p_field(self, p): 758 "field : ident" 759 p[0] = p[1] 760