16657Snate@binkert.org# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
26657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company
36657Snate@binkert.org# All rights reserved.
46657Snate@binkert.org#
56657Snate@binkert.org# Redistribution and use in source and binary forms, with or without
66657Snate@binkert.org# modification, are permitted provided that the following conditions are
76657Snate@binkert.org# met: redistributions of source code must retain the above copyright
86657Snate@binkert.org# notice, this list of conditions and the following disclaimer;
96657Snate@binkert.org# redistributions in binary form must reproduce the above copyright
106657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the
116657Snate@binkert.org# documentation and/or other materials provided with the distribution;
126657Snate@binkert.org# neither the name of the copyright holders nor the names of its
136657Snate@binkert.org# contributors may be used to endorse or promote products derived from
146657Snate@binkert.org# this software without specific prior written permission.
156657Snate@binkert.org#
166657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
176657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
186657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
196657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
206657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
216657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
226657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
236657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
246657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
256657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
266657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
276657Snate@binkert.org
286657Snate@binkert.orgfrom slicc.ast.AST import AST
296657Snate@binkert.org
306657Snate@binkert.orgfrom slicc.symbols import Type
316657Snate@binkert.org
326657Snate@binkert.orgclass TypeAST(AST):
336657Snate@binkert.org    def __init__(self, slicc, ident):
346657Snate@binkert.org        super(TypeAST, self).__init__(slicc)
356657Snate@binkert.org
366657Snate@binkert.org        self.ident = ident
376657Snate@binkert.org
386657Snate@binkert.org    def __repr__(self):
396657Snate@binkert.org        return self.ident
406657Snate@binkert.org
416657Snate@binkert.org    def __str__(self):
426657Snate@binkert.org        return self.ident
436657Snate@binkert.org
446657Snate@binkert.org    @property
456657Snate@binkert.org    def type(self, assert_type=None):
466657Snate@binkert.org        type = self.symtab.find(self.ident, Type)
476657Snate@binkert.org        if not type:
486657Snate@binkert.org            self.error("Type '%s' not declared.", self)
496657Snate@binkert.org
506657Snate@binkert.org        if assert_type is not None and type != assert_type:
516657Snate@binkert.org            self.error("Type '%s' is should be type '%s'", self, assert_type)
526657Snate@binkert.org
536657Snate@binkert.org        return type
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