Func.py revision 7839
1# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 2# Copyright (c) 2009 The Hewlett-Packard Development Company 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28from slicc.symbols.Symbol import Symbol 29from slicc.symbols.Type import Type 30 31class Func(Symbol): 32 def __init__(self, table, ident, location, return_type, param_types, 33 param_strings, body, pairs, machine): 34 super(Func, self).__init__(table, ident, location, pairs) 35 self.return_type = return_type 36 self.param_types = param_types 37 self.param_strings = param_strings 38 self.body = body 39 self.isInternalMachineFunc = False 40 41 if machine is None: 42 self.c_ident = ident 43 elif "external" in self or "primitive" in self: 44 self.c_ident = ident 45 else: 46 self.machineStr = str(machine) 47 # Append with machine name 48 self.c_ident = "%s_%s" % (self.machineStr, ident) 49 self.isInternalMachineFunc = True 50 51 def __repr__(self): 52 return "" 53 54 @property 55 def prototype(self): 56 if "external" in self: 57 return "" 58 59 return_type = self.return_type.c_ident 60 void_type = self.symtab.find("void", Type) 61 if "return_by_ref" in self and self.return_type != void_type: 62 return_type += "&" 63 elif "return_by_pointer" in self and self.return_type != void_type: 64 return_type += "*" 65 66 return "%s %s(%s);" % (return_type, self.c_ident, 67 ", ".join(self.param_strings)) 68 69 def writeCodeFiles(self, path): 70 '''This write a function of object Chip''' 71 if "external" in self: 72 return 73 74 code = self.symtab.codeFormatter() 75 76 # Header 77 code(''' 78/** Auto generated C++ code started by $__file__:$__line__ */ 79 80#include "mem/protocol/Types.hh" 81''') 82 83 if self.isInternalMachineFunc: 84 code('#include "mem/protocol/${{self.machineStr}}_Controller.hh"') 85 86 code('using namespace std;') 87 # Generate function header 88 void_type = self.symtab.find("void", Type) 89 return_type = self.return_type.c_ident 90 if "return_by_ref" in self and self.return_type != void_type: 91 return_type += "&" 92 if "return_by_pointer" in self and self.return_type != void_type: 93 return_type += "*" 94 95 if self.isInternalMachineFunc: 96 klass = "%s_Controller" % self.machineStr 97 else: 98 klass = "Chip" 99 100 params = ', '.join(self.param_strings) 101 102 code(''' 103$return_type 104${klass}::${{self.c_ident}}($params) 105{ 106${{self.body}} 107} 108''') 109 code.write(path, "%s.cc" % self.c_ident) 110 111__all__ = [ "Func" ] 112