src/mem/slicc/ast/TypeFieldMemberAST.py

   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
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   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
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  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
  28 from slicc.ast.TypeFieldAST import TypeFieldAST
  29
  30 class TypeFieldMemberAST(TypeFieldAST):
  31     def __init__(self, slicc, type_ast, field_id, pairs, rvalue):
  32         super(TypeFieldMemberAST, self).__init__(slicc, pairs)
  33
  34         self.type_ast = type_ast
  35         self.field_id = field_id
  36         self.rvalue = rvalue
  37
  38     def __repr__(self):
  39         return "[TypeFieldMember: %r]" % self.field_id
  40
  41     def generate(self, type):
  42         # Lookup type
  43         field_type = self.type_ast.type
  44
  45         # check type if this is a initialization
  46         init_code = ""
  47         if self.rvalue:
  48             rvalue_type,init_code = self.rvalue.inline(True)
  49             if field_type != rvalue_type:
  50                 self.error("Initialization type mismatch '%s' and '%s'" % \
  51                            (field_type, rvalue_type))
  52
  53         # Add data member to the parent type
  54         if not type.dataMemberAdd(self.field_id, field_type, self.pairs,
  55                                   init_code):
  56
  57             self.error("Duplicate data member: %s:%s" % (type_ptr, field_id))