2278363015
This is simply a translation of the C++ slicc into python with very minimal reorganization of the code. The output can be verified as nearly identical by doing a "diff -wBur". Slicc can easily be run manually by using util/slicc
73 lines
3 KiB
Python
73 lines
3 KiB
Python
# 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 m5.util import code_formatter
|
|
|
|
from slicc.ast.DeclAST import DeclAST
|
|
from slicc.symbols import Action, Type, Var
|
|
|
|
class ActionDeclAST(DeclAST):
|
|
def __init__(self, slicc, ident, pairs, statement_list):
|
|
super(ActionDeclAST, self).__init__(slicc, pairs)
|
|
self.ident = ident
|
|
self.statement_list = statement_list
|
|
|
|
def __repr__(self):
|
|
return "[ActionDecl: %r]" % (self.ident)
|
|
|
|
def generate(self):
|
|
resources = {}
|
|
if self.statement_list:
|
|
# Add new local vars
|
|
self.symtab.pushFrame()
|
|
|
|
addr_type = self.symtab.find("Address", Type)
|
|
|
|
if addr_type is None:
|
|
self.error("Type 'Address' not declared.")
|
|
|
|
var = Var(self.symtab, "address", self.location, addr_type,
|
|
"addr", self.pairs)
|
|
self.symtab.newSymbol(var)
|
|
|
|
# Do not allows returns in actions
|
|
code = code_formatter()
|
|
self.statement_list.generate(code, None)
|
|
self.pairs["c_code"] = str(code)
|
|
|
|
self.statement_list.findResources(resources)
|
|
|
|
self.symtab.popFrame()
|
|
|
|
machine = self.symtab.state_machine
|
|
if machine is None:
|
|
self.error("Action declaration not part of a machine.")
|
|
|
|
action = Action(self.symtab, self.ident, resources, self.location,
|
|
self.pairs)
|
|
machine.addAction(action)
|