| # 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, idents, pairs_ast, config_parameters, decls): |
| super(MachineAST, self).__init__(slicc, pairs_ast) |
| |
| self.ident = idents[0] |
| self.machine_types = idents |
| 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 |
| for mtype in self.machine_types: |
| machine_type = self.symtab.find("MachineType", Type) |
| pairs = self.pairs_ast.pairs |
| |
| if mtype == self.ident: |
| pairs["Primary"] = True |
| else: |
| pairs["Primary"] = False |
| |
| if not machine_type.addEnum(mtype, pairs): |
| self.error("Duplicate machine name: %s:%s" % ( |
| machine_type, mtype)) |
| |
| # Generate code for all the internal decls |
| self.decls.findMachines() |