ObjDeclAST.py revision 9366:bf8eb26c7b7e
1# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 2# Copyright (c) 2009 The Hewlett-Packard Development Company 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28from slicc.ast.DeclAST import DeclAST 29from slicc.symbols import Var 30 31class ObjDeclAST(DeclAST): 32 def __init__(self, slicc, type_ast, ident, pairs): 33 super(ObjDeclAST, self).__init__(slicc, pairs) 34 35 self.type_ast = type_ast 36 self.ident = ident 37 38 def __repr__(self): 39 return "[ObjDecl: %r]" % self.ident 40 41 def generate(self): 42 machineComponentSym = False 43 44 if "network" in self and "virtual_network" not in self: 45 self.error("Network queues require a 'virtual_network' attribute") 46 47 type = self.type_ast.type 48 if type.isBuffer and "ordered" not in self: 49 self.error("Buffer object decls require an 'ordered' attribute") 50 51 if "ordered" in self: 52 value = self["ordered"] 53 54 if value not in ("true", "false"): 55 self.error("The 'ordered' attribute is '%s' " + \ 56 "must be 'true' or 'false'.", value) 57 58 if "random" in self: 59 value = self["random"] 60 if value not in ("true", "false"): 61 self.error("The 'random' attribute is '%s' " + \ 62 "must be 'true' or 'false'.", value) 63 64 machine = self.symtab.state_machine 65 66 # FIXME : should all use accessors here to avoid public member 67 # variables 68 if self.ident == "version": 69 c_code = "m_version" 70 elif self.ident == "machineID": 71 c_code = "m_machineID" 72 elif machine: 73 c_code = "(*m_%s_%s_ptr)" % (machine.ident, self.ident) 74 else: 75 c_code = "(*m_%s_ptr)" % (self.ident) 76 77 v = Var(self.symtab, self.ident, self.location, type, c_code, 78 self.pairs, machine) 79 80 if machine: 81 machine.addObject(v) 82 83 self.symtab.newSymbol(v) 84 85 # used to cheat-- that is, access components in other machines 86 if machineComponentSym: 87 self.symtab.newMachComponentSym(v) 88