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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.DeclAST import DeclAST
from slicc.symbols import StateMachine, Type
class MachineAST(DeclAST):
def __init__(self, slicc, ident, pairs_ast, config_parameters, decls):
super(MachineAST, self).__init__(slicc, pairs_ast)
self.ident = ident
self.pairs_ast = pairs_ast
self.config_parameters = config_parameters
self.decls = decls
def __repr__(self):
return "[Machine: %r]" % self.ident
def files(self, parent=None):
s = set(('%s_Controller.cc' % self.ident,
'%s_Controller.hh' % self.ident,
'%s_Controller.py' % self.ident,
'%s_Transitions.cc' % self.ident,
'%s_Wakeup.cc' % self.ident))
s |= self.decls.files(self.ident)
return s
def generate(self):
# Make a new frame
self.symtab.pushFrame()
# Create a new machine
machine = StateMachine(self.symtab, self.ident, self.location,
self.pairs, self.config_parameters)
self.symtab.newCurrentMachine(machine)
# Generate code for all the internal decls
self.decls.generate()
# Build the transition table
machine.buildTable()
# Pop the frame
self.symtab.popFrame()
def findMachines(self):
# Add to MachineType enumeration
machine_type = self.symtab.find("MachineType", Type)
if not machine_type.addEnum(self.ident, self.pairs_ast.pairs):
self.error("Duplicate machine name: %s:%s" % (machine_type,
self.ident))
# Generate code for all the internal decls
self.decls.findMachines()
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