xref: /gem5/src/mem/slicc/ast/FormalParamAST.py

# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
# Copyright (c) 2009 The Hewlett-Packard Development Company
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
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# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
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# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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from slicc.ast.AST import AST
from slicc.symbols import Var

class FormalParamAST(AST):
    def __init__(self, slicc, type_ast, ident, default = None, pointer = False):
        super(FormalParamAST, self).__init__(slicc)
        self.type_ast = type_ast
        self.ident = ident
        self.default = default
        self.pointer = pointer

    def __repr__(self):
        return "[FormalParamAST: %s]" % self.ident

    @property
    def name(self):
        return self.ident

    def generate(self):
        type = self.type_ast.type
        param = "param_%s" % self.ident

        # Add to symbol table
        v = Var(self.symtab, self.ident, self.location, type, param,
                self.pairs)
        self.symtab.newSymbol(v)
        if self.pointer or str(type) == "TBE" or (
           "interface" in type and type["interface"] == "AbstractCacheEntry"):

            return type, "%s* %s" % (type.c_ident, param)
        else:
            return type, "%s %s" % (type.c_ident, param)