src/mem/slicc/ast/LocalVariableAST.py

   1 #
   2 # Copyright (c) 2011 Mark D. Hill and David A. Wood
   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 #
  28
  29 from slicc.ast.StatementAST import StatementAST
  30 from slicc.symbols import Var
  31
  32 class LocalVariableAST(StatementAST):
  33     def __init__(self, slicc, type_ast, ident, pointer = False):
  34         super(LocalVariableAST, self).__init__(slicc)
  35         self.type_ast = type_ast
  36         self.ident    = ident
  37         self.pointer = pointer
  38
  39     def __repr__(self):
  40         return "[LocalVariableAST: %r %r]" % (self.type_ast, self.ident)
  41
  42     @property
  43     def name(self):
  44         return self.var_name
  45
  46     def generate(self, code):
  47         type = self.type_ast.type;
  48         ident = "%s" % self.ident;
  49
  50         # Add to symbol table
  51         v = Var(self.symtab, self.ident, self.location, type, ident,
  52                 self.pairs)
  53         self.symtab.newSymbol(v)
  54         if self.pointer or str(type) == "TBE" or (
  55            "interface" in type and type["interface"] == "AbstractCacheEntry"):
  56             code += "%s* %s" % (type.c_ident, ident)
  57         else:
  58             code += "%s %s" % (type.c_ident, ident)
  59         return type