16657Snate@binkert.org# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 26657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 36657Snate@binkert.org# All rights reserved. 46657Snate@binkert.org# 56657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 66657Snate@binkert.org# modification, are permitted provided that the following conditions are 76657Snate@binkert.org# met: redistributions of source code must retain the above copyright 86657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 96657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 106657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 116657Snate@binkert.org# documentation and/or other materials provided with the distribution; 126657Snate@binkert.org# neither the name of the copyright holders nor the names of its 136657Snate@binkert.org# contributors may be used to endorse or promote products derived from 146657Snate@binkert.org# this software without specific prior written permission. 156657Snate@binkert.org# 166657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276657Snate@binkert.org 286657Snate@binkert.orgfrom slicc.ast.DeclAST import DeclAST 296657Snate@binkert.orgfrom slicc.symbols import Func, Type 306657Snate@binkert.org 316657Snate@binkert.orgclass FuncDeclAST(DeclAST): 326657Snate@binkert.org def __init__(self, slicc, return_type, ident, formals, pairs, statements): 336657Snate@binkert.org super(FuncDeclAST, self).__init__(slicc, pairs) 346657Snate@binkert.org 356657Snate@binkert.org self.return_type = return_type 366657Snate@binkert.org self.ident = ident 376657Snate@binkert.org self.formals = formals 386657Snate@binkert.org self.statements = statements 396657Snate@binkert.org 406657Snate@binkert.org def __repr__(self): 416657Snate@binkert.org return "[FuncDecl: %s]" % self.ident 426657Snate@binkert.org 436714Ssteve.reinhardt@amd.com def files(self, parent=None): 448478Snilay@cs.wisc.edu return set() 456657Snate@binkert.org 469298Snilay@cs.wisc.edu def generate(self, parent = None): 476657Snate@binkert.org types = [] 4811049Snilay@cs.wisc.edu params = [] 496657Snate@binkert.org void_type = self.symtab.find("void", Type) 506657Snate@binkert.org 516657Snate@binkert.org # Generate definition code 526657Snate@binkert.org self.symtab.pushFrame() 536657Snate@binkert.org 546657Snate@binkert.org # Lookup return type 556657Snate@binkert.org return_type = self.return_type.type 566657Snate@binkert.org 576657Snate@binkert.org # Generate function header 586657Snate@binkert.org for formal in self.formals: 596657Snate@binkert.org # Lookup parameter types 6010307Snilay@cs.wisc.edu try: 6111049Snilay@cs.wisc.edu type, ident = formal.generate() 6210307Snilay@cs.wisc.edu types.append(type) 6311049Snilay@cs.wisc.edu params.append(ident) 6410307Snilay@cs.wisc.edu 6510307Snilay@cs.wisc.edu except AttributeError: 6610307Snilay@cs.wisc.edu types.append(formal.type) 6711049Snilay@cs.wisc.edu params.append(None) 686657Snate@binkert.org 696999Snate@binkert.org body = self.slicc.codeFormatter() 706657Snate@binkert.org if self.statements is None: 716657Snate@binkert.org self["external"] = "yes" 726657Snate@binkert.org else: 736657Snate@binkert.org rtype = self.statements.generate(body, return_type) 746657Snate@binkert.org 756657Snate@binkert.org self.symtab.popFrame() 766657Snate@binkert.org 7710984SBrad.Beckmann@amd.com func_name_args = self.ident 7810984SBrad.Beckmann@amd.com 7910984SBrad.Beckmann@amd.com if parent is None: 8010984SBrad.Beckmann@amd.com for arg in self.formals: 8110984SBrad.Beckmann@amd.com from slicc.ast import FormalParamAST 8210984SBrad.Beckmann@amd.com if isinstance(arg, FormalParamAST): 8310984SBrad.Beckmann@amd.com arg_name = arg.type_ast.ident 8410984SBrad.Beckmann@amd.com else: 8510984SBrad.Beckmann@amd.com arg_name = arg 8610984SBrad.Beckmann@amd.com func_name_args += "_" + str(arg_name) 8710984SBrad.Beckmann@amd.com 886657Snate@binkert.org machine = self.state_machine 8910984SBrad.Beckmann@amd.com func = Func(self.symtab, func_name_args, self.ident, self.location, 9011049Snilay@cs.wisc.edu return_type, types, params, str(body), self.pairs) 916657Snate@binkert.org 929298Snilay@cs.wisc.edu if parent is not None: 939298Snilay@cs.wisc.edu if not parent.addFunc(func): 949298Snilay@cs.wisc.edu self.error("Duplicate method: %s:%s()" % (parent, self.ident)) 959298Snilay@cs.wisc.edu func.class_name = parent.c_ident 969298Snilay@cs.wisc.edu 979298Snilay@cs.wisc.edu elif machine is not None: 986657Snate@binkert.org machine.addFunc(func) 999298Snilay@cs.wisc.edu func.isInternalMachineFunc = True 1009298Snilay@cs.wisc.edu func.class_name = "%s_Controller" % machine 1016657Snate@binkert.org else: 1026657Snate@binkert.org self.symtab.newSymbol(func) 103