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authorNathan Binkert <nate@binkert.org>2009-09-22 18:12:39 -0700
committerNathan Binkert <nate@binkert.org>2009-09-22 18:12:39 -0700
commit2278363015a2a5cc850b38213833096d33b496e8 (patch)
tree8f7fea117f40cadbec70e68a0b92e1cb960dafbe /src/mem/slicc/ast/LiteralExprAST.py
parent30d5d95b6a7c93ccf63ae0cfcc62d17306c31eee (diff)
downloadgem5-2278363015a2a5cc850b38213833096d33b496e8.tar.xz
slicc: Pure python implementation of slicc.
This is simply a translation of the C++ slicc into python with very minimal reorganization of the code. The output can be verified as nearly identical by doing a "diff -wBur". Slicc can easily be run manually by using util/slicc
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+# 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
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# 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
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from slicc.ast.ExprAST import ExprAST
+from slicc.symbols import Type
+
+class LiteralExprAST(ExprAST):
+ def __init__(self, slicc, literal, type):
+ super(LiteralExprAST, self).__init__(slicc)
+ self.literal = literal
+ self.type = type
+
+ def __repr__(self):
+ return "[Literal: %s]" % self.literal
+
+ def generate(self, code):
+ fix = code.nofix()
+ if self.type == "string":
+ code('("${{self.literal}}")')
+ elif self.type == "bool":
+ code('(${{str(self.literal).lower()}})')
+ else:
+ code('(${{self.literal}})')
+ code.fix(fix)
+
+ type = self.symtab.find(self.type, Type)
+ if type is None:
+ # Can't find the type
+ self.error("Internal: can't primitive type '%s'" % self.type)
+
+ return type