b41eec3f65
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
66 lines
3.0 KiB
Python
66 lines
3.0 KiB
Python
# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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# Copyright (c) 2009 The Hewlett-Packard Development Company
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from slicc.ast.DeclAST import DeclAST
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from slicc.symbols import Transition
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class TransitionDeclAST(DeclAST):
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def __init__(self, slicc, states, events, next_state, pairs, actions):
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super(TransitionDeclAST, self).__init__(slicc, pairs)
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self.states = states
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self.events = events
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self.next_state = next_state
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self.actions = actions
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def __repr__(self):
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return "[TransitionDecl: ]"
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def generate(self):
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machine = self.symtab.state_machine
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if machine is None:
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self.error("Transition declaration not part of a machine.")
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for action in self.actions:
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if action not in machine.actions:
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self.error("Invalid action: %s is not part of machine: %s" % \
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(action, machine))
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for state in self.states:
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if state not in machine.states:
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self.error("Invalid state: %s is not part of machine: %s" % \
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(state, machine))
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next_state = self.next_state or state
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for event in self.events:
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if event not in machine.events:
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self.error("Invalid event: %s is not part of machine: %s" % \
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(event, machine))
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t = Transition(self.symtab, machine, state, event, next_state,
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self.actions, self.location, self.pairs)
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machine.addTransition(t)
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