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
89 lines
3.3 KiB
Python
89 lines
3.3 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.code_formatter import code_formatter
|
|
|
|
from slicc.ast.DeclAST import DeclAST
|
|
from slicc.symbols import Func, Type
|
|
|
|
class FuncDeclAST(DeclAST):
|
|
def __init__(self, slicc, return_type, ident, formals, pairs, statements):
|
|
super(FuncDeclAST, self).__init__(slicc, pairs)
|
|
|
|
self.return_type = return_type
|
|
self.ident = ident
|
|
self.formals = formals
|
|
self.statements = statements
|
|
|
|
def __repr__(self):
|
|
return "[FuncDecl: %s]" % self.ident
|
|
|
|
def files(self, hh, cc, parent=None):
|
|
if "external" in self or self.statements is None:
|
|
return
|
|
|
|
if parent:
|
|
ident = "%s_%s" % (parent, self.ident)
|
|
else:
|
|
ident = self.ident
|
|
cc.add("%s.cc" % ident)
|
|
|
|
def generate(self):
|
|
types = []
|
|
params = []
|
|
void_type = self.symtab.find("void", Type)
|
|
|
|
# Generate definition code
|
|
self.symtab.pushFrame()
|
|
|
|
# Lookup return type
|
|
return_type = self.return_type.type
|
|
|
|
# Generate function header
|
|
for formal in self.formals:
|
|
# Lookup parameter types
|
|
type, ident = formal.generate()
|
|
types.append(type)
|
|
params.append(ident)
|
|
|
|
body = code_formatter()
|
|
if self.statements is None:
|
|
self["external"] = "yes"
|
|
else:
|
|
rtype = self.statements.generate(body, return_type)
|
|
|
|
self.symtab.popFrame()
|
|
|
|
machine = self.state_machine
|
|
func = Func(self.symtab, self.ident, self.location, return_type,
|
|
types, params, str(body), self.pairs, machine)
|
|
|
|
if machine is not None:
|
|
machine.addFunc(func)
|
|
else:
|
|
self.symtab.newSymbol(func)
|