src/mem/slicc/ast/CheckAllocateStatementAST.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
   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
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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,
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  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.StatementAST import StatementAST
  29
  30 class CheckAllocateStatementAST(StatementAST):
  31     def __init__(self, slicc, variable):
  32         super(StatementAST, self).__init__(slicc)
  33         self.variable = variable
  34
  35     def __repr__(self):
  36         return "[CheckAllocateStatementAst: %r]" % self.variable
  37
  38     def generate(self, code, return_type):
  39         # FIXME - check the type of the variable
  40
  41         # Make sure the variable is valid
  42         self.variable.var
  43
  44     def findResources(self, resources):
  45         var = self.variable.var
  46         res_count = int(resources.get(var, 0))
  47         resources[var] = str(res_count + 1)