AST.py revision 6657 
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
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
28from m5.util import code_formatter
29
30from slicc.util import PairContainer, Location
31
32class AST(PairContainer):
33    def __init__(self, slicc, pairs=None):
34        self.slicc = slicc
35        self.location = Location(slicc.current_file, slicc.lexer.lineno)
36        self.pairs = {}
37        if pairs:
38            self.pairs.update(getattr(pairs, "pairs", pairs))
39
40    @property
41    def symtab(self):
42        return self.slicc.symtab
43
44    @property
45    def state_machine(self):
46        return self.slicc.symtab.state_machine
47
48    def warning(self, message, *args):
49        self.location.warning(message, *args)
50
51    def error(self, message, *args):
52        self.location.error(message, *args)
53
54    def embedError(self, message, *args):
55        if args:
56            message = message % args
57        code = code_formatter()
58        code('''
59cerr << "Runtime Error at ${{self.location}}, Ruby Time: " << g_eventQueue_ptr->getTime() << ": "<< $message << ", PID: " << getpid() << endl;
60char c; cerr << "press return to continue." << endl; cin.get(c); abort();
61''')
62
63        return code
64