parser.py revision 11888
16657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 211888Sleolson@google.com# Copyright (c) 2017 Google Inc. 36657Snate@binkert.org# All rights reserved. 46657Snate@binkert.org# 56657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 66657Snate@binkert.org# modification, are permitted provided that the following conditions are 76657Snate@binkert.org# met: redistributions of source code must retain the above copyright 86657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 96657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 106657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 116657Snate@binkert.org# documentation and/or other materials provided with the distribution; 126657Snate@binkert.org# neither the name of the copyright holders nor the names of its 136657Snate@binkert.org# contributors may be used to endorse or promote products derived from 146657Snate@binkert.org# this software without specific prior written permission. 156657Snate@binkert.org# 166657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276657Snate@binkert.org# 286657Snate@binkert.org# Authors: Nathan Binkert 2911888Sleolson@google.com# Lena Olson 306657Snate@binkert.org 316657Snate@binkert.orgimport os.path 326657Snate@binkert.orgimport re 336657Snate@binkert.orgimport sys 346657Snate@binkert.org 356999Snate@binkert.orgfrom m5.util import code_formatter 368452Snate@binkert.orgfrom m5.util.grammar import Grammar, ParseError 376657Snate@binkert.org 386657Snate@binkert.orgimport slicc.ast as ast 396657Snate@binkert.orgimport slicc.util as util 406657Snate@binkert.orgfrom slicc.symbols import SymbolTable 416657Snate@binkert.org 426657Snate@binkert.orgclass SLICC(Grammar): 439219Spower.jg@gmail.com def __init__(self, filename, base_dir, verbose=False, traceback=False, **kwargs): 448454Snate@binkert.org self.protocol = None 458454Snate@binkert.org self.traceback = traceback 468453Snate@binkert.org self.verbose = verbose 476999Snate@binkert.org self.symtab = SymbolTable(self) 489219Spower.jg@gmail.com self.base_dir = base_dir 496999Snate@binkert.org 508454Snate@binkert.org try: 518454Snate@binkert.org self.decl_list = self.parse_file(filename, **kwargs) 528454Snate@binkert.org except ParseError, e: 538454Snate@binkert.org if not self.traceback: 548454Snate@binkert.org sys.exit(str(e)) 558454Snate@binkert.org raise 568454Snate@binkert.org 578453Snate@binkert.org def currentLocation(self): 588453Snate@binkert.org return util.Location(self.current_source, self.current_line, 598453Snate@binkert.org no_warning=not self.verbose) 608453Snate@binkert.org 616999Snate@binkert.org def codeFormatter(self, *args, **kwargs): 626999Snate@binkert.org code = code_formatter(*args, **kwargs) 636999Snate@binkert.org code['protocol'] = self.protocol 646999Snate@binkert.org return code 656657Snate@binkert.org 668453Snate@binkert.org def process(self): 678454Snate@binkert.org self.decl_list.generate() 686657Snate@binkert.org 699219Spower.jg@gmail.com def writeCodeFiles(self, code_path, includes): 709219Spower.jg@gmail.com self.symtab.writeCodeFiles(code_path, includes) 716657Snate@binkert.org 728453Snate@binkert.org def writeHTMLFiles(self, html_path): 738453Snate@binkert.org self.symtab.writeHTMLFiles(html_path) 746657Snate@binkert.org 756657Snate@binkert.org def files(self): 7611283Santhony.gutierrez@amd.com f = set(['Types.hh']) 776657Snate@binkert.org 788454Snate@binkert.org f |= self.decl_list.files() 796657Snate@binkert.org 806714Ssteve.reinhardt@amd.com return f 816657Snate@binkert.org 826657Snate@binkert.org t_ignore = '\t ' 836657Snate@binkert.org 846657Snate@binkert.org # C or C++ comment (ignore) 856657Snate@binkert.org def t_c_comment(self, t): 866657Snate@binkert.org r'/\*(.|\n)*?\*/' 876657Snate@binkert.org t.lexer.lineno += t.value.count('\n') 886657Snate@binkert.org 896657Snate@binkert.org def t_cpp_comment(self, t): 906657Snate@binkert.org r'//.*' 916657Snate@binkert.org 926657Snate@binkert.org # Define a rule so we can track line numbers 936657Snate@binkert.org def t_newline(self, t): 946657Snate@binkert.org r'\n+' 956657Snate@binkert.org t.lexer.lineno += len(t.value) 966657Snate@binkert.org 976657Snate@binkert.org reserved = { 988454Snate@binkert.org 'protocol' : 'PROTOCOL', 998454Snate@binkert.org 'include' : 'INCLUDE', 1006657Snate@binkert.org 'global' : 'GLOBAL', 1016657Snate@binkert.org 'machine' : 'MACHINE', 1026657Snate@binkert.org 'in_port' : 'IN_PORT', 1036657Snate@binkert.org 'out_port' : 'OUT_PORT', 1046657Snate@binkert.org 'action' : 'ACTION', 1056657Snate@binkert.org 'transition' : 'TRANS', 1066657Snate@binkert.org 'structure' : 'STRUCT', 1076657Snate@binkert.org 'external_type' : 'EXTERN_TYPE', 1086657Snate@binkert.org 'enumeration' : 'ENUM', 1098086SBrad.Beckmann@amd.com 'state_declaration' : 'STATE_DECL', 1106657Snate@binkert.org 'peek' : 'PEEK', 1117567SBrad.Beckmann@amd.com 'stall_and_wait' : 'STALL_AND_WAIT', 1126657Snate@binkert.org 'enqueue' : 'ENQUEUE', 1136657Snate@binkert.org 'check_allocate' : 'CHECK_ALLOCATE', 11410981SBrad.Beckmann@amd.com 'check_next_cycle' : 'CHECK_NEXT_CYCLE', 1156657Snate@binkert.org 'check_stop_slots' : 'CHECK_STOP_SLOTS', 1166882SBrad.Beckmann@amd.com 'static_cast' : 'STATIC_CAST', 1176657Snate@binkert.org 'if' : 'IF', 1187839Snilay@cs.wisc.edu 'is_valid' : 'IS_VALID', 1197839Snilay@cs.wisc.edu 'is_invalid' : 'IS_INVALID', 1206657Snate@binkert.org 'else' : 'ELSE', 1216657Snate@binkert.org 'return' : 'RETURN', 1226657Snate@binkert.org 'void' : 'VOID', 1236657Snate@binkert.org 'new' : 'NEW', 1247839Snilay@cs.wisc.edu 'OOD' : 'OOD', 1256657Snate@binkert.org } 1266657Snate@binkert.org 1276657Snate@binkert.org literals = ':[]{}(),=' 1286657Snate@binkert.org 1296657Snate@binkert.org tokens = [ 'EQ', 'NE', 'LT', 'GT', 'LE', 'GE', 1306657Snate@binkert.org 'LEFTSHIFT', 'RIGHTSHIFT', 1316657Snate@binkert.org 'NOT', 'AND', 'OR', 1326657Snate@binkert.org 'PLUS', 'DASH', 'STAR', 'SLASH', 1339692Snilay@cs.wisc.edu 'INCR', 'DECR', 1346657Snate@binkert.org 'DOUBLE_COLON', 'SEMI', 1356657Snate@binkert.org 'ASSIGN', 'DOT', 1366657Snate@binkert.org 'IDENT', 'LIT_BOOL', 'FLOATNUMBER', 'NUMBER', 'STRING' ] 1376657Snate@binkert.org tokens += reserved.values() 1386657Snate@binkert.org 1396657Snate@binkert.org t_EQ = r'==' 1406657Snate@binkert.org t_NE = r'!=' 1416657Snate@binkert.org t_LT = r'<' 1426657Snate@binkert.org t_GT = r'>' 1436657Snate@binkert.org t_LE = r'<=' 1446657Snate@binkert.org t_GE = r'>=' 1456657Snate@binkert.org t_LEFTSHIFT = r'<<' 1466657Snate@binkert.org t_RIGHTSHIFT = r'>>' 1476657Snate@binkert.org t_NOT = r'!' 1486657Snate@binkert.org t_AND = r'&&' 1496657Snate@binkert.org t_OR = r'\|\|' 1506657Snate@binkert.org t_PLUS = r'\+' 1516657Snate@binkert.org t_DASH = r'-' 1526657Snate@binkert.org t_STAR = r'\*' 1536657Snate@binkert.org t_SLASH = r'/' 1546657Snate@binkert.org t_DOUBLE_COLON = r'::' 1556657Snate@binkert.org t_SEMI = r';' 1566657Snate@binkert.org t_ASSIGN = r':=' 1576657Snate@binkert.org t_DOT = r'\.' 1589692Snilay@cs.wisc.edu t_INCR = r'\+\+' 1599692Snilay@cs.wisc.edu t_DECR = r'--' 1606657Snate@binkert.org 1616657Snate@binkert.org precedence = ( 1629692Snilay@cs.wisc.edu ('left', 'INCR', 'DECR'), 16311888Sleolson@google.com ('left', 'OR'), 16411888Sleolson@google.com ('left', 'AND'), 1656657Snate@binkert.org ('left', 'EQ', 'NE'), 1666657Snate@binkert.org ('left', 'LT', 'GT', 'LE', 'GE'), 1676657Snate@binkert.org ('left', 'RIGHTSHIFT', 'LEFTSHIFT'), 1686657Snate@binkert.org ('left', 'PLUS', 'DASH'), 1696657Snate@binkert.org ('left', 'STAR', 'SLASH'), 1706657Snate@binkert.org ('right', 'NOT', 'UMINUS'), 1716657Snate@binkert.org ) 1726657Snate@binkert.org 1736657Snate@binkert.org def t_IDENT(self, t): 1746657Snate@binkert.org r'[a-zA-Z_][a-zA-Z_0-9]*' 1756657Snate@binkert.org if t.value == 'true': 1766657Snate@binkert.org t.type = 'LIT_BOOL' 1776657Snate@binkert.org t.value = True 1786657Snate@binkert.org return t 1796657Snate@binkert.org 1806657Snate@binkert.org if t.value == 'false': 1816657Snate@binkert.org t.type = 'LIT_BOOL' 1826657Snate@binkert.org t.value = False 1836657Snate@binkert.org return t 1846657Snate@binkert.org 1856657Snate@binkert.org # Check for reserved words 1866657Snate@binkert.org t.type = self.reserved.get(t.value, 'IDENT') 1876657Snate@binkert.org return t 1886657Snate@binkert.org 1896657Snate@binkert.org def t_FLOATNUMBER(self, t): 1906657Snate@binkert.org '[0-9]+[.][0-9]+' 1916657Snate@binkert.org try: 1926657Snate@binkert.org t.value = float(t.value) 1936657Snate@binkert.org except ValueError: 1948452Snate@binkert.org raise ParseError("Illegal float", t) 1956657Snate@binkert.org return t 1966657Snate@binkert.org 1976657Snate@binkert.org def t_NUMBER(self, t): 1986657Snate@binkert.org r'[0-9]+' 1996657Snate@binkert.org try: 2006657Snate@binkert.org t.value = int(t.value) 2016657Snate@binkert.org except ValueError: 2028452Snate@binkert.org raise ParseError("Illegal number", t) 2036657Snate@binkert.org return t 2046657Snate@binkert.org 2056657Snate@binkert.org def t_STRING1(self, t): 2066657Snate@binkert.org r'\"[^"\n]*\"' 2076657Snate@binkert.org t.type = 'STRING' 2086657Snate@binkert.org t.value = t.value[1:-1] 2096657Snate@binkert.org return t 2106657Snate@binkert.org 2116657Snate@binkert.org def t_STRING2(self, t): 2126657Snate@binkert.org r"\'[^'\n]*\'" 2136657Snate@binkert.org t.type = 'STRING' 2146657Snate@binkert.org t.value = t.value[1:-1] 2156657Snate@binkert.org return t 2166657Snate@binkert.org 2176657Snate@binkert.org def p_file(self, p): 2186657Snate@binkert.org "file : decls" 2196657Snate@binkert.org p[0] = p[1] 2206657Snate@binkert.org 2216657Snate@binkert.org def p_empty(self, p): 2226657Snate@binkert.org "empty :" 2236657Snate@binkert.org 2246657Snate@binkert.org def p_decls(self, p): 2256657Snate@binkert.org "decls : declsx" 2266657Snate@binkert.org p[0] = ast.DeclListAST(self, p[1]) 2276657Snate@binkert.org 2286657Snate@binkert.org def p_declsx__list(self, p): 2296657Snate@binkert.org "declsx : decl declsx" 2308454Snate@binkert.org if isinstance(p[1], ast.DeclListAST): 2318454Snate@binkert.org decls = p[1].decls 2328454Snate@binkert.org elif p[1] is None: 2338454Snate@binkert.org decls = [] 2348454Snate@binkert.org else: 2358454Snate@binkert.org decls = [ p[1] ] 2368454Snate@binkert.org p[0] = decls + p[2] 2376657Snate@binkert.org 2386657Snate@binkert.org def p_declsx__none(self, p): 2396657Snate@binkert.org "declsx : empty" 2406657Snate@binkert.org p[0] = [] 2416657Snate@binkert.org 2428454Snate@binkert.org def p_decl__protocol(self, p): 2438454Snate@binkert.org "decl : PROTOCOL STRING SEMI" 2448454Snate@binkert.org if self.protocol: 2458454Snate@binkert.org msg = "Protocol can only be set once! Error at %s:%s\n" % \ 2468454Snate@binkert.org (self.current_source, self.current_line) 2478454Snate@binkert.org raise ParseError(msg) 2488454Snate@binkert.org self.protocol = p[2] 2498454Snate@binkert.org p[0] = None 2508454Snate@binkert.org 2518454Snate@binkert.org def p_decl__include(self, p): 2528454Snate@binkert.org "decl : INCLUDE STRING SEMI" 2538454Snate@binkert.org dirname = os.path.dirname(self.current_source) 2549219Spower.jg@gmail.com if os.path.exists(os.path.join(dirname, p[2])): 2559219Spower.jg@gmail.com filename = os.path.join(dirname, p[2]) 2569219Spower.jg@gmail.com else: 2579219Spower.jg@gmail.com filename = os.path.join(self.base_dir, p[2]) 2588454Snate@binkert.org p[0] = self.parse_file(filename) 2598454Snate@binkert.org 2609773Snilay@cs.wisc.edu def p_decl__machine0(self, p): 26111283Santhony.gutierrez@amd.com "decl : MACHINE '(' enumeration ')' ':' obj_decls '{' decls '}'" 2629773Snilay@cs.wisc.edu p[0] = ast.MachineAST(self, p[3], [], p[7], p[9]) 2639773Snilay@cs.wisc.edu 2649773Snilay@cs.wisc.edu def p_decl__machine1(self, p): 26511283Santhony.gutierrez@amd.com "decl : MACHINE '(' enumeration pairs ')' ':' obj_decls '{' decls '}'" 2666657Snate@binkert.org p[0] = ast.MachineAST(self, p[3], p[4], p[7], p[9]) 2676657Snate@binkert.org 2686657Snate@binkert.org def p_decl__action(self, p): 2696657Snate@binkert.org "decl : ACTION '(' ident pairs ')' statements" 2706657Snate@binkert.org p[0] = ast.ActionDeclAST(self, p[3], p[4], p[6]) 2716657Snate@binkert.org 2726657Snate@binkert.org def p_decl__in_port(self, p): 2736657Snate@binkert.org "decl : IN_PORT '(' ident ',' type ',' var pairs ')' statements" 2746657Snate@binkert.org p[0] = ast.InPortDeclAST(self, p[3], p[5], p[7], p[8], p[10]) 2756657Snate@binkert.org 2766657Snate@binkert.org def p_decl__out_port(self, p): 2776657Snate@binkert.org "decl : OUT_PORT '(' ident ',' type ',' var pairs ')' SEMI" 2786657Snate@binkert.org p[0] = ast.OutPortDeclAST(self, p[3], p[5], p[7], p[8]) 2796657Snate@binkert.org 2806657Snate@binkert.org def p_decl__trans0(self, p): 28110964Sdavid.hashe@amd.com "decl : TRANS '(' idents ',' idents ',' ident_or_star ')' idents" 28210165Snilay@cs.wisc.edu p[0] = ast.TransitionDeclAST(self, [], p[3], p[5], p[7], p[9]) 2836657Snate@binkert.org 2846657Snate@binkert.org def p_decl__trans1(self, p): 28510165Snilay@cs.wisc.edu "decl : TRANS '(' idents ',' idents ')' idents" 28610165Snilay@cs.wisc.edu p[0] = ast.TransitionDeclAST(self, [], p[3], p[5], None, p[7]) 2879104Shestness@cs.utexas.edu 2889104Shestness@cs.utexas.edu def p_decl__trans2(self, p): 28910964Sdavid.hashe@amd.com "decl : TRANS '(' idents ',' idents ',' ident_or_star ')' idents idents" 29010165Snilay@cs.wisc.edu p[0] = ast.TransitionDeclAST(self, p[9], p[3], p[5], p[7], p[10]) 2919104Shestness@cs.utexas.edu 2929104Shestness@cs.utexas.edu def p_decl__trans3(self, p): 29310165Snilay@cs.wisc.edu "decl : TRANS '(' idents ',' idents ')' idents idents" 29410165Snilay@cs.wisc.edu p[0] = ast.TransitionDeclAST(self, p[7], p[3], p[5], None, p[8]) 2956657Snate@binkert.org 2966657Snate@binkert.org def p_decl__extern0(self, p): 2976657Snate@binkert.org "decl : EXTERN_TYPE '(' type pairs ')' SEMI" 2986657Snate@binkert.org p[4]["external"] = "yes" 2996657Snate@binkert.org p[0] = ast.TypeDeclAST(self, p[3], p[4], []) 3006657Snate@binkert.org 3016657Snate@binkert.org def p_decl__global(self, p): 3026657Snate@binkert.org "decl : GLOBAL '(' type pairs ')' '{' type_members '}'" 3036657Snate@binkert.org p[4]["global"] = "yes" 3046657Snate@binkert.org p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 3056657Snate@binkert.org 3066657Snate@binkert.org def p_decl__struct(self, p): 3076657Snate@binkert.org "decl : STRUCT '(' type pairs ')' '{' type_members '}'" 3086657Snate@binkert.org p[0] = ast.TypeDeclAST(self, p[3], p[4], p[7]) 3096657Snate@binkert.org 3106657Snate@binkert.org def p_decl__enum(self, p): 3116657Snate@binkert.org "decl : ENUM '(' type pairs ')' '{' type_enums '}'" 3126657Snate@binkert.org p[4]["enumeration"] = "yes" 3136657Snate@binkert.org p[0] = ast.EnumDeclAST(self, p[3], p[4], p[7]) 3146657Snate@binkert.org 3158086SBrad.Beckmann@amd.com def p_decl__state_decl(self, p): 3168086SBrad.Beckmann@amd.com "decl : STATE_DECL '(' type pairs ')' '{' type_states '}'" 3178086SBrad.Beckmann@amd.com p[4]["enumeration"] = "yes" 3188086SBrad.Beckmann@amd.com p[4]["state_decl"] = "yes" 3198086SBrad.Beckmann@amd.com p[0] = ast.StateDeclAST(self, p[3], p[4], p[7]) 3208086SBrad.Beckmann@amd.com 32110307Snilay@cs.wisc.edu # Type fields 32210308Snilay@cs.wisc.edu def p_obj_decls__list(self, p): 32310308Snilay@cs.wisc.edu "obj_decls : obj_decl obj_decls" 32410308Snilay@cs.wisc.edu p[0] = [ p[1] ] + p[2] 32510308Snilay@cs.wisc.edu 32610308Snilay@cs.wisc.edu def p_obj_decls__empty(self, p): 32710308Snilay@cs.wisc.edu "obj_decls : empty" 32810308Snilay@cs.wisc.edu p[0] = [] 32910308Snilay@cs.wisc.edu 33010307Snilay@cs.wisc.edu def p_type_members__list(self, p): 33110307Snilay@cs.wisc.edu "type_members : type_member type_members" 33210307Snilay@cs.wisc.edu p[0] = [ p[1] ] + p[2] 33310307Snilay@cs.wisc.edu 33410307Snilay@cs.wisc.edu def p_type_members__empty(self, p): 33510307Snilay@cs.wisc.edu "type_members : empty" 33610307Snilay@cs.wisc.edu p[0] = [] 33710307Snilay@cs.wisc.edu 33810307Snilay@cs.wisc.edu def p_type_member__0(self, p): 33910307Snilay@cs.wisc.edu """type_member : obj_decl 34010307Snilay@cs.wisc.edu | func_decl 34110307Snilay@cs.wisc.edu | func_def""" 34210307Snilay@cs.wisc.edu p[0] = p[1] 34310307Snilay@cs.wisc.edu 34410307Snilay@cs.wisc.edu # Member / Variable declarations 34510307Snilay@cs.wisc.edu def p_decl__obj_decl(self, p): 34610307Snilay@cs.wisc.edu "decl : obj_decl" 34710307Snilay@cs.wisc.edu p[0] = p[1] 34810307Snilay@cs.wisc.edu 34910307Snilay@cs.wisc.edu def p_obj_decl__0(self, p): 35010307Snilay@cs.wisc.edu "obj_decl : type ident pairs SEMI" 35110308Snilay@cs.wisc.edu p[0] = ast.ObjDeclAST(self, p[1], p[2], p[3], None, False) 35210307Snilay@cs.wisc.edu 35310307Snilay@cs.wisc.edu def p_obj_decl__1(self, p): 35410307Snilay@cs.wisc.edu "obj_decl : type STAR ident pairs SEMI" 35510308Snilay@cs.wisc.edu p[0] = ast.ObjDeclAST(self, p[1], p[3], p[4], None, True) 35610307Snilay@cs.wisc.edu 35710307Snilay@cs.wisc.edu def p_obj_decl__2(self, p): 35810307Snilay@cs.wisc.edu "obj_decl : type ident ASSIGN expr SEMI" 35910308Snilay@cs.wisc.edu p[0] = ast.ObjDeclAST(self, p[1], p[2], ast.PairListAST(self), p[4], 36010308Snilay@cs.wisc.edu False) 36110307Snilay@cs.wisc.edu 36210307Snilay@cs.wisc.edu def p_obj_decl__3(self, p): 36310307Snilay@cs.wisc.edu "obj_decl : type STAR ident ASSIGN expr SEMI" 36410308Snilay@cs.wisc.edu p[0] = ast.ObjDeclAST(self, p[1], p[3], ast.PairListAST(self), p[5], 36510308Snilay@cs.wisc.edu True) 3666657Snate@binkert.org 3679298Snilay@cs.wisc.edu # Function definition and declaration 3686657Snate@binkert.org def p_decl__func_decl(self, p): 3699298Snilay@cs.wisc.edu "decl : func_decl" 3709298Snilay@cs.wisc.edu p[0] = p[1] 3719298Snilay@cs.wisc.edu 3729298Snilay@cs.wisc.edu def p_func_decl__0(self, p): 3739298Snilay@cs.wisc.edu """func_decl : void ident '(' params ')' pairs SEMI 3746657Snate@binkert.org | type ident '(' params ')' pairs SEMI""" 3756657Snate@binkert.org p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], None) 3766657Snate@binkert.org 37710307Snilay@cs.wisc.edu def p_func_decl__1(self, p): 37810307Snilay@cs.wisc.edu """func_decl : void ident '(' types ')' pairs SEMI 37910307Snilay@cs.wisc.edu | type ident '(' types ')' pairs SEMI""" 38010307Snilay@cs.wisc.edu p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], None) 38110307Snilay@cs.wisc.edu 3826657Snate@binkert.org def p_decl__func_def(self, p): 3839298Snilay@cs.wisc.edu "decl : func_def" 3849298Snilay@cs.wisc.edu p[0] = p[1] 3859298Snilay@cs.wisc.edu 3869298Snilay@cs.wisc.edu def p_func_def__0(self, p): 3879298Snilay@cs.wisc.edu """func_def : void ident '(' params ')' pairs statements 3889298Snilay@cs.wisc.edu | type ident '(' params ')' pairs statements""" 3896657Snate@binkert.org p[0] = ast.FuncDeclAST(self, p[1], p[2], p[4], p[6], p[7]) 3906657Snate@binkert.org 3916657Snate@binkert.org # Enum fields 3926657Snate@binkert.org def p_type_enums__list(self, p): 3936657Snate@binkert.org "type_enums : type_enum type_enums" 3946657Snate@binkert.org p[0] = [ p[1] ] + p[2] 3956657Snate@binkert.org 3966657Snate@binkert.org def p_type_enums__empty(self, p): 3976657Snate@binkert.org "type_enums : empty" 3986657Snate@binkert.org p[0] = [] 3996657Snate@binkert.org 4006657Snate@binkert.org def p_type_enum(self, p): 4016657Snate@binkert.org "type_enum : ident pairs SEMI" 4026657Snate@binkert.org p[0] = ast.TypeFieldEnumAST(self, p[1], p[2]) 4036657Snate@binkert.org 4048086SBrad.Beckmann@amd.com # States 4058086SBrad.Beckmann@amd.com def p_type_states__list(self, p): 4068086SBrad.Beckmann@amd.com "type_states : type_state type_states" 4078086SBrad.Beckmann@amd.com p[0] = [ p[1] ] + p[2] 4088086SBrad.Beckmann@amd.com 4098086SBrad.Beckmann@amd.com def p_type_states__empty(self, p): 4108086SBrad.Beckmann@amd.com "type_states : empty" 4118086SBrad.Beckmann@amd.com p[0] = [] 4128086SBrad.Beckmann@amd.com 4138086SBrad.Beckmann@amd.com def p_type_state(self, p): 4148086SBrad.Beckmann@amd.com "type_state : ident ',' enumeration pairs SEMI" 4158086SBrad.Beckmann@amd.com p[0] = ast.TypeFieldStateAST(self, p[1], p[3], p[4]) 4168086SBrad.Beckmann@amd.com 4176657Snate@binkert.org # Formal Param 4186657Snate@binkert.org def p_params__many(self, p): 4196657Snate@binkert.org "params : param ',' params" 4206657Snate@binkert.org p[0] = [ p[1] ] + p[3] 4216657Snate@binkert.org 4226657Snate@binkert.org def p_params__one(self, p): 4236657Snate@binkert.org "params : param" 4246657Snate@binkert.org p[0] = [ p[1] ] 4256657Snate@binkert.org 4266657Snate@binkert.org def p_params__none(self, p): 4276657Snate@binkert.org "params : empty" 4286657Snate@binkert.org p[0] = [] 4296657Snate@binkert.org 4306657Snate@binkert.org def p_param(self, p): 4316657Snate@binkert.org "param : type ident" 4326657Snate@binkert.org p[0] = ast.FormalParamAST(self, p[1], p[2]) 4336657Snate@binkert.org 4346882SBrad.Beckmann@amd.com def p_param__pointer(self, p): 4356882SBrad.Beckmann@amd.com "param : type STAR ident" 4366882SBrad.Beckmann@amd.com p[0] = ast.FormalParamAST(self, p[1], p[3], None, True) 4376882SBrad.Beckmann@amd.com 4386907SBrad.Beckmann@amd.com def p_param__pointer_default(self, p): 43910308Snilay@cs.wisc.edu "param : type STAR ident ASSIGN STRING" 4406907SBrad.Beckmann@amd.com p[0] = ast.FormalParamAST(self, p[1], p[3], p[5], True) 4416907SBrad.Beckmann@amd.com 4426907SBrad.Beckmann@amd.com def p_param__default_number(self, p): 44310308Snilay@cs.wisc.edu "param : type ident ASSIGN NUMBER" 4446877Ssteve.reinhardt@amd.com p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 4456877Ssteve.reinhardt@amd.com 4466907SBrad.Beckmann@amd.com def p_param__default_bool(self, p): 44710308Snilay@cs.wisc.edu "param : type ident ASSIGN LIT_BOOL" 4486907SBrad.Beckmann@amd.com p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 4496907SBrad.Beckmann@amd.com 4506907SBrad.Beckmann@amd.com def p_param__default_string(self, p): 45110308Snilay@cs.wisc.edu "param : type ident ASSIGN STRING" 4526907SBrad.Beckmann@amd.com p[0] = ast.FormalParamAST(self, p[1], p[2], p[4]) 4536907SBrad.Beckmann@amd.com 45410307Snilay@cs.wisc.edu # Type 45510307Snilay@cs.wisc.edu def p_types__multiple(self, p): 45610307Snilay@cs.wisc.edu "types : type ',' types" 45710307Snilay@cs.wisc.edu p[0] = [ p[1] ] + p[3] 45810307Snilay@cs.wisc.edu 45910307Snilay@cs.wisc.edu def p_types__one(self, p): 46010307Snilay@cs.wisc.edu "types : type" 46110307Snilay@cs.wisc.edu p[0] = [ p[1] ] 46210307Snilay@cs.wisc.edu 46310307Snilay@cs.wisc.edu def p_types__empty(self, p): 46410307Snilay@cs.wisc.edu "types : empty" 46510307Snilay@cs.wisc.edu p[0] = [] 46610307Snilay@cs.wisc.edu 46710307Snilay@cs.wisc.edu def p_typestr__multi(self, p): 46810307Snilay@cs.wisc.edu "typestr : typestr DOUBLE_COLON ident" 46910307Snilay@cs.wisc.edu p[0] = '%s::%s' % (p[1], p[3]) 47010307Snilay@cs.wisc.edu 47110307Snilay@cs.wisc.edu def p_typestr__single(self, p): 47210307Snilay@cs.wisc.edu "typestr : ident" 47310307Snilay@cs.wisc.edu p[0] = p[1] 47410307Snilay@cs.wisc.edu 47510307Snilay@cs.wisc.edu def p_type__one(self, p): 47610307Snilay@cs.wisc.edu "type : typestr" 47710307Snilay@cs.wisc.edu p[0] = ast.TypeAST(self, p[1]) 47810307Snilay@cs.wisc.edu 47910307Snilay@cs.wisc.edu def p_void(self, p): 48010307Snilay@cs.wisc.edu "void : VOID" 48110307Snilay@cs.wisc.edu p[0] = ast.TypeAST(self, p[1]) 48210307Snilay@cs.wisc.edu 4836657Snate@binkert.org # Idents and lists 4846657Snate@binkert.org def p_idents__braced(self, p): 4856657Snate@binkert.org "idents : '{' identx '}'" 4866657Snate@binkert.org p[0] = p[2] 4876657Snate@binkert.org 4886657Snate@binkert.org def p_idents__bare(self, p): 4896657Snate@binkert.org "idents : ident" 4906657Snate@binkert.org p[0] = [ p[1] ] 4916657Snate@binkert.org 4926657Snate@binkert.org def p_identx__multiple_1(self, p): 4936657Snate@binkert.org """identx : ident SEMI identx 4946657Snate@binkert.org | ident ',' identx""" 4956657Snate@binkert.org p[0] = [ p[1] ] + p[3] 4966657Snate@binkert.org 4976657Snate@binkert.org def p_identx__multiple_2(self, p): 4986657Snate@binkert.org "identx : ident identx" 4996657Snate@binkert.org p[0] = [ p[1] ] + p[2] 5006657Snate@binkert.org 5016657Snate@binkert.org def p_identx__single(self, p): 5026657Snate@binkert.org "identx : empty" 5036657Snate@binkert.org p[0] = [ ] 5046657Snate@binkert.org 5056657Snate@binkert.org def p_ident(self, p): 5066657Snate@binkert.org "ident : IDENT" 5076657Snate@binkert.org p[0] = p[1] 5086657Snate@binkert.org 50910964Sdavid.hashe@amd.com def p_ident_or_star(self, p): 51010964Sdavid.hashe@amd.com """ident_or_star : ident 51110964Sdavid.hashe@amd.com | STAR""" 51210964Sdavid.hashe@amd.com p[0] = p[1] 51310964Sdavid.hashe@amd.com 5146657Snate@binkert.org # Pair and pair lists 5156657Snate@binkert.org def p_pairs__list(self, p): 5166657Snate@binkert.org "pairs : ',' pairsx" 5176657Snate@binkert.org p[0] = p[2] 5186657Snate@binkert.org 5196657Snate@binkert.org def p_pairs__empty(self, p): 5206657Snate@binkert.org "pairs : empty" 5216657Snate@binkert.org p[0] = ast.PairListAST(self) 5226657Snate@binkert.org 5236657Snate@binkert.org def p_pairsx__many(self, p): 5246657Snate@binkert.org "pairsx : pair ',' pairsx" 5256657Snate@binkert.org p[0] = p[3] 5266657Snate@binkert.org p[0].addPair(p[1]) 5276657Snate@binkert.org 5286657Snate@binkert.org def p_pairsx__one(self, p): 5296657Snate@binkert.org "pairsx : pair" 5306657Snate@binkert.org p[0] = ast.PairListAST(self) 5316657Snate@binkert.org p[0].addPair(p[1]) 5326657Snate@binkert.org 5336657Snate@binkert.org def p_pair__assign(self, p): 5346657Snate@binkert.org """pair : ident '=' STRING 5357567SBrad.Beckmann@amd.com | ident '=' ident 5367567SBrad.Beckmann@amd.com | ident '=' NUMBER""" 5376657Snate@binkert.org p[0] = ast.PairAST(self, p[1], p[3]) 5386657Snate@binkert.org 5396657Snate@binkert.org def p_pair__literal(self, p): 5406657Snate@binkert.org "pair : STRING" 5416657Snate@binkert.org p[0] = ast.PairAST(self, "short", p[1]) 5426657Snate@binkert.org 5436657Snate@binkert.org # Below are the rules for action descriptions 5446657Snate@binkert.org def p_statements__inner(self, p): 5456657Snate@binkert.org "statements : '{' statements_inner '}'" 5466657Snate@binkert.org p[0] = ast.StatementListAST(self, p[2]) 5476657Snate@binkert.org 5486657Snate@binkert.org def p_statements__none(self, p): 5496657Snate@binkert.org "statements : '{' '}'" 5506657Snate@binkert.org p[0] = ast.StatementListAST(self, []) 5516657Snate@binkert.org 5526657Snate@binkert.org def p_statements_inner__many(self, p): 5536657Snate@binkert.org "statements_inner : statement statements_inner" 5546657Snate@binkert.org p[0] = [ p[1] ] + p[2] 5556657Snate@binkert.org 5566657Snate@binkert.org def p_statements_inner__one(self, p): 5576657Snate@binkert.org "statements_inner : statement" 5586657Snate@binkert.org p[0] = [ p[1] ] 5596657Snate@binkert.org 5606657Snate@binkert.org def p_exprs__multiple(self, p): 5616657Snate@binkert.org "exprs : expr ',' exprs" 5626657Snate@binkert.org p[0] = [ p[1] ] + p[3] 5636657Snate@binkert.org 5646657Snate@binkert.org def p_exprs__one(self, p): 5656657Snate@binkert.org "exprs : expr" 5666657Snate@binkert.org p[0] = [ p[1] ] 5676657Snate@binkert.org 5686657Snate@binkert.org def p_exprs__empty(self, p): 5696657Snate@binkert.org "exprs : empty""" 5706657Snate@binkert.org p[0] = [] 5716657Snate@binkert.org 5726657Snate@binkert.org def p_statement__expression(self, p): 5736657Snate@binkert.org "statement : expr SEMI" 5746657Snate@binkert.org p[0] = ast.ExprStatementAST(self, p[1]) 5756657Snate@binkert.org 5766657Snate@binkert.org def p_statement__assign(self, p): 5776657Snate@binkert.org "statement : expr ASSIGN expr SEMI" 5786657Snate@binkert.org p[0] = ast.AssignStatementAST(self, p[1], p[3]) 5796657Snate@binkert.org 5806657Snate@binkert.org def p_statement__enqueue(self, p): 58110155Snilay@cs.wisc.edu "statement : ENQUEUE '(' var ',' type ')' statements" 58210155Snilay@cs.wisc.edu p[0] = ast.EnqueueStatementAST(self, p[3], p[5], None, p[7]) 58310155Snilay@cs.wisc.edu 58410155Snilay@cs.wisc.edu def p_statement__enqueue_latency(self, p): 58510155Snilay@cs.wisc.edu "statement : ENQUEUE '(' var ',' type ',' expr ')' statements" 58610155Snilay@cs.wisc.edu p[0] = ast.EnqueueStatementAST(self, p[3], p[5], p[7], p[9]) 5876657Snate@binkert.org 5887567SBrad.Beckmann@amd.com def p_statement__stall_and_wait(self, p): 5897567SBrad.Beckmann@amd.com "statement : STALL_AND_WAIT '(' var ',' var ')' SEMI" 5907567SBrad.Beckmann@amd.com p[0] = ast.StallAndWaitStatementAST(self, p[3], p[5]) 5917567SBrad.Beckmann@amd.com 5926657Snate@binkert.org def p_statement__peek(self, p): 5936863Sdrh5@cs.wisc.edu "statement : PEEK '(' var ',' type pairs ')' statements" 5946863Sdrh5@cs.wisc.edu p[0] = ast.PeekStatementAST(self, p[3], p[5], p[6], p[8], "peek") 5956657Snate@binkert.org 5966657Snate@binkert.org def p_statement__check_allocate(self, p): 5976657Snate@binkert.org "statement : CHECK_ALLOCATE '(' var ')' SEMI" 5986657Snate@binkert.org p[0] = ast.CheckAllocateStatementAST(self, p[3]) 5996657Snate@binkert.org 60010981SBrad.Beckmann@amd.com def p_statement__check_next_cycle(self, p): 60110981SBrad.Beckmann@amd.com "statement : CHECK_NEXT_CYCLE '(' ')' SEMI" 60210981SBrad.Beckmann@amd.com p[0] = ast.CheckNextCycleAST(self) 60310981SBrad.Beckmann@amd.com 6046657Snate@binkert.org def p_statement__check_stop(self, p): 6056657Snate@binkert.org "statement : CHECK_STOP_SLOTS '(' var ',' STRING ',' STRING ')' SEMI" 6066657Snate@binkert.org p[0] = ast.CheckStopStatementAST(self, p[3], p[5], p[7]) 6076657Snate@binkert.org 6086657Snate@binkert.org def p_statement__return(self, p): 6096657Snate@binkert.org "statement : RETURN expr SEMI" 6106657Snate@binkert.org p[0] = ast.ReturnStatementAST(self, p[2]) 6116657Snate@binkert.org 6126657Snate@binkert.org def p_statement__if(self, p): 6136657Snate@binkert.org "statement : if_statement" 6146657Snate@binkert.org p[0] = p[1] 6156657Snate@binkert.org 6166657Snate@binkert.org def p_if_statement__if(self, p): 6176657Snate@binkert.org "if_statement : IF '(' expr ')' statements" 6186657Snate@binkert.org p[0] = ast.IfStatementAST(self, p[3], p[5], None) 6196657Snate@binkert.org 6206657Snate@binkert.org def p_if_statement__if_else(self, p): 6216657Snate@binkert.org "if_statement : IF '(' expr ')' statements ELSE statements" 6226657Snate@binkert.org p[0] = ast.IfStatementAST(self, p[3], p[5], p[7]) 6236657Snate@binkert.org 6246657Snate@binkert.org def p_statement__if_else_if(self, p): 6256657Snate@binkert.org "if_statement : IF '(' expr ')' statements ELSE if_statement" 6266657Snate@binkert.org p[0] = ast.IfStatementAST(self, p[3], p[5], 6276657Snate@binkert.org ast.StatementListAST(self, p[7])) 6286657Snate@binkert.org 62910155Snilay@cs.wisc.edu def p_expr__static_cast(self, p): 63010155Snilay@cs.wisc.edu "aexpr : STATIC_CAST '(' type ',' expr ')'" 63110155Snilay@cs.wisc.edu p[0] = ast.StaticCastAST(self, p[3], "ref", p[5]) 63210155Snilay@cs.wisc.edu 63310155Snilay@cs.wisc.edu def p_expr__static_cast_ptr(self, p): 63410155Snilay@cs.wisc.edu "aexpr : STATIC_CAST '(' type ',' STRING ',' expr ')'" 63510155Snilay@cs.wisc.edu p[0] = ast.StaticCastAST(self, p[3], p[5], p[7]) 63610155Snilay@cs.wisc.edu 6376657Snate@binkert.org def p_expr__var(self, p): 6386657Snate@binkert.org "aexpr : var" 6396657Snate@binkert.org p[0] = p[1] 6406657Snate@binkert.org 6417839Snilay@cs.wisc.edu def p_expr__localvar(self, p): 6427839Snilay@cs.wisc.edu "aexpr : type ident" 6437839Snilay@cs.wisc.edu p[0] = ast.LocalVariableAST(self, p[1], p[2]) 6447839Snilay@cs.wisc.edu 6456657Snate@binkert.org def p_expr__literal(self, p): 6466657Snate@binkert.org "aexpr : literal" 6476657Snate@binkert.org p[0] = p[1] 6486657Snate@binkert.org 6496657Snate@binkert.org def p_expr__enumeration(self, p): 6506657Snate@binkert.org "aexpr : enumeration" 6516657Snate@binkert.org p[0] = p[1] 6526657Snate@binkert.org 6536657Snate@binkert.org def p_expr__func_call(self, p): 6546657Snate@binkert.org "aexpr : ident '(' exprs ')'" 6556657Snate@binkert.org p[0] = ast.FuncCallExprAST(self, p[1], p[3]) 6566657Snate@binkert.org 6576657Snate@binkert.org def p_expr__new(self, p): 6586657Snate@binkert.org "aexpr : NEW type" 6596657Snate@binkert.org p[0] = ast.NewExprAST(self, p[2]) 6606657Snate@binkert.org 6617839Snilay@cs.wisc.edu def p_expr__null(self, p): 6627839Snilay@cs.wisc.edu "aexpr : OOD" 6637839Snilay@cs.wisc.edu p[0] = ast.OodAST(self) 6647839Snilay@cs.wisc.edu 6656657Snate@binkert.org def p_expr__member(self, p): 6666657Snate@binkert.org "aexpr : aexpr DOT ident" 6676657Snate@binkert.org p[0] = ast.MemberExprAST(self, p[1], p[3]) 6686657Snate@binkert.org 6696657Snate@binkert.org def p_expr__member_method_call(self, p): 6706657Snate@binkert.org "aexpr : aexpr DOT ident '(' exprs ')'" 67111062Snilay@cs.wisc.edu p[0] = ast.MemberMethodCallExprAST(self, p[1], 67211062Snilay@cs.wisc.edu ast.FuncCallExprAST(self, p[3], p[5])) 67311049Snilay@cs.wisc.edu 67411049Snilay@cs.wisc.edu def p_expr__member_method_call_lookup(self, p): 67511049Snilay@cs.wisc.edu "aexpr : aexpr '[' exprs ']'" 67611062Snilay@cs.wisc.edu p[0] = ast.MemberMethodCallExprAST(self, p[1], 67711062Snilay@cs.wisc.edu ast.FuncCallExprAST(self, "lookup", p[3])) 6786657Snate@binkert.org 6796657Snate@binkert.org def p_expr__class_method_call(self, p): 6806657Snate@binkert.org "aexpr : type DOUBLE_COLON ident '(' exprs ')'" 68111062Snilay@cs.wisc.edu p[0] = ast.ClassMethodCallExprAST(self, p[1], 68211062Snilay@cs.wisc.edu ast.FuncCallExprAST(self, p[3], p[5])) 6836657Snate@binkert.org 6846657Snate@binkert.org def p_expr__aexpr(self, p): 6856657Snate@binkert.org "expr : aexpr" 6866657Snate@binkert.org p[0] = p[1] 6876657Snate@binkert.org 6886657Snate@binkert.org def p_expr__binary_op(self, p): 6896657Snate@binkert.org """expr : expr STAR expr 6906657Snate@binkert.org | expr SLASH expr 6916657Snate@binkert.org | expr PLUS expr 6926657Snate@binkert.org | expr DASH expr 6936657Snate@binkert.org | expr LT expr 6946657Snate@binkert.org | expr GT expr 6956657Snate@binkert.org | expr LE expr 6966657Snate@binkert.org | expr GE expr 6976657Snate@binkert.org | expr EQ expr 6986657Snate@binkert.org | expr NE expr 6996657Snate@binkert.org | expr AND expr 7006657Snate@binkert.org | expr OR expr 7016657Snate@binkert.org | expr RIGHTSHIFT expr 7026657Snate@binkert.org | expr LEFTSHIFT expr""" 7036657Snate@binkert.org p[0] = ast.InfixOperatorExprAST(self, p[1], p[2], p[3]) 7046657Snate@binkert.org 7056657Snate@binkert.org # FIXME - unary not 7066657Snate@binkert.org def p_expr__unary_op(self, p): 7076657Snate@binkert.org """expr : NOT expr 7089692Snilay@cs.wisc.edu | INCR expr 7099692Snilay@cs.wisc.edu | DECR expr 7106657Snate@binkert.org | DASH expr %prec UMINUS""" 7119692Snilay@cs.wisc.edu p[0] = ast.PrefixOperatorExprAST(self, p[1], p[2]) 7126657Snate@binkert.org 7136657Snate@binkert.org def p_expr__parens(self, p): 7146657Snate@binkert.org "aexpr : '(' expr ')'" 7156657Snate@binkert.org p[0] = p[2] 7166657Snate@binkert.org 7177839Snilay@cs.wisc.edu def p_expr__is_valid_ptr(self, p): 7187839Snilay@cs.wisc.edu "aexpr : IS_VALID '(' var ')'" 7197839Snilay@cs.wisc.edu p[0] = ast.IsValidPtrExprAST(self, p[3], True) 7207839Snilay@cs.wisc.edu 7217839Snilay@cs.wisc.edu def p_expr__is_invalid_ptr(self, p): 7227839Snilay@cs.wisc.edu "aexpr : IS_INVALID '(' var ')'" 7237839Snilay@cs.wisc.edu p[0] = ast.IsValidPtrExprAST(self, p[3], False) 7247839Snilay@cs.wisc.edu 7256657Snate@binkert.org def p_literal__string(self, p): 7266657Snate@binkert.org "literal : STRING" 7277055Snate@binkert.org p[0] = ast.LiteralExprAST(self, p[1], "std::string") 7286657Snate@binkert.org 7296657Snate@binkert.org def p_literal__number(self, p): 7306657Snate@binkert.org "literal : NUMBER" 7316657Snate@binkert.org p[0] = ast.LiteralExprAST(self, p[1], "int") 7326657Snate@binkert.org 7336657Snate@binkert.org def p_literal__float(self, p): 7346657Snate@binkert.org "literal : FLOATNUMBER" 7356657Snate@binkert.org p[0] = ast.LiteralExprAST(self, p[1], "int") 7366657Snate@binkert.org 7376657Snate@binkert.org def p_literal__bool(self, p): 7386657Snate@binkert.org "literal : LIT_BOOL" 7396657Snate@binkert.org p[0] = ast.LiteralExprAST(self, p[1], "bool") 7406657Snate@binkert.org 7416657Snate@binkert.org def p_enumeration(self, p): 7426657Snate@binkert.org "enumeration : ident ':' ident" 7436657Snate@binkert.org p[0] = ast.EnumExprAST(self, ast.TypeAST(self, p[1]), p[3]) 7446657Snate@binkert.org 7456657Snate@binkert.org def p_var(self, p): 7466657Snate@binkert.org "var : ident" 7476657Snate@binkert.org p[0] = ast.VarExprAST(self, p[1]) 748