ObjDeclAST.py revision 10308
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, rvalue, pointer): 33 super(ObjDeclAST, self).__init__(slicc, pairs) 34 35 self.type_ast = type_ast 36 self.ident = ident 37 self.rvalue = rvalue 38 self.pointer = pointer 39 40 def __repr__(self): 41 return "[ObjDecl: %r]" % self.ident 42 43 def generate(self, parent = None): 44 if "network" in self and not ("virtual_network" in self or 45 "physical_network" in self) : 46 self.error("Network queues require a 'virtual_network' attribute") 47 48 type = self.type_ast.type 49 50 if type.isBuffer and "ordered" not in self: 51 self.error("Buffer object decls require an 'ordered' attribute") 52 53 if "ordered" in self: 54 value = self["ordered"] 55 56 if value not in ("true", "false"): 57 self.error("The 'ordered' attribute is '%s' " + \ 58 "must be 'true' or 'false'.", value) 59 60 if "random" in self: 61 value = self["random"] 62 if value not in ("true", "false"): 63 self.error("The 'random' attribute is '%s' " + \ 64 "must be 'true' or 'false'.", value) 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 self.ident == "clusterID": 73 c_code = "m_clusterID" 74 else: 75 c_code = "(*m_%s_ptr)" % (self.ident) 76 77 # check type if this is a initialization 78 init_code = "" 79 if self.rvalue: 80 rvalue_type,init_code = self.rvalue.inline(True) 81 if type != rvalue_type: 82 self.error("Initialization type mismatch '%s' and '%s'" % \ 83 (type, rvalue_type)) 84 85 machine = self.symtab.state_machine 86 87 v = Var(self.symtab, self.ident, self.location, type, c_code, 88 self.pairs, machine) 89 90 # Add data member to the parent type 91 if parent: 92 if not parent.addDataMember(self.ident, type, self.pairs, init_code): 93 self.error("Duplicate data member: %s:%s" % (parent, self.ident)) 94 95 elif machine: 96 machine.addObject(v) 97 98 else: 99 self.symtab.newSymbol(v) 100