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
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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        # FIXME : should all use accessors here to avoid public member
51        # variables
52        if self.ident == "version":
53            c_code = "m_version"
54        elif self.ident == "machineID":
55            c_code = "m_machineID"
56        elif self.ident == "clusterID":
57            c_code = "m_clusterID"
58        elif self.ident == "recycle_latency":
59            c_code = "m_recycle_latency"
60        else:
61            c_code = "(*m_%s_ptr)" % (self.ident)
62
63        # check type if this is a initialization
64        init_code = ""
65        if self.rvalue:
66            rvalue_type,init_code = self.rvalue.inline(True)
67            if type != rvalue_type:
68                self.error("Initialization type mismatch '%s' and '%s'" % \
69                           (type, rvalue_type))
70
71        machine = self.symtab.state_machine
72
73        v = Var(self.symtab, self.ident, self.location, type, c_code,
74                self.pairs, machine)
75
76        # Add data member to the parent type
77        if parent:
78            if not parent.addDataMember(self.ident, type, self.pairs, init_code):
79                self.error("Duplicate data member: %s:%s" % (parent, self.ident))
80
81        elif machine:
82            machine.addObject(v)
83
84        else:
85            self.symtab.newSymbol(v)
86