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# 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.generate import html
from slicc.symbols.StateMachine import StateMachine
from slicc.symbols.Type import Type
from slicc.util import Location
class SymbolTable(object):
def __init__(self):
self.sym_vec = []
self.sym_map_vec = [ {} ]
self.machine_components = {}
pairs = {}
pairs["enumeration"] = "yes"
MachineType = Type(self, "MachineType", Location("init", 0), pairs)
self.newSymbol(MachineType)
pairs = {}
pairs["primitive"] = "yes"
pairs["external"] = "yes"
void = Type(self, "void", Location("init", 0), pairs)
self.newSymbol(void)
def __repr__(self):
return "[SymbolTable]" # FIXME
def newSymbol(self, sym):
self.registerSym(str(sym), sym)
self.sym_vec.append(sym)
def registerSym(self, id, sym):
# Check for redeclaration (in the current frame only)
if id in self.sym_map_vec[-1]:
sym.error("Symbol '%s' redeclared in same scope.", id)
# FIXME - warn on masking of a declaration in a previous frame
self.sym_map_vec[-1][id] = sym
def find(self, ident, types=None):
for sym_map in reversed(self.sym_map_vec):
try:
symbol = sym_map[ident]
except KeyError:
continue
if types is not None:
if not isinstance(symbol, types):
symbol.error("Symbol '%s' is not of types '%s'.",
symbol,
types)
return symbol
return None
def newMachComponentSym(self, symbol):
# used to cheat-- that is, access components in other machines
machine = self.find("current_machine", StateMachine)
if machine:
self.machine_components[str(machine)][str(symbol)] = symbol
def newCurrentMachine(self, sym):
self.registerGlobalSym(str(sym), sym)
self.registerSym("current_machine", sym)
self.sym_vec.append(sym)
self.machine_components[str(sym)] = {}
@property
def state_machine(self):
return self.find("current_machine", StateMachine)
def pushFrame(self):
self.sym_map_vec.append({})
def popFrame(self):
assert len(self.sym_map_vec) > 0
self.sym_map_vec.pop()
def registerGlobalSym(self, ident, symbol):
# Check for redeclaration (global frame only)
if ident in self.sym_map_vec[0]:
symbol.error("Symbol '%s' redeclared in global scope." % ident)
self.sym_map_vec[0][ident] = symbol
def getAllType(self, type):
for symbol in self.sym_vec:
if isinstance(symbol, type):
yield symbol
def writeCodeFiles(self, path):
code = code_formatter()
code('''
/** Auto generated C++ code started by $__file__:$__line__ */
#include "mem/ruby/slicc_interface/RubySlicc_includes.hh"
''')
for symbol in self.sym_vec:
if isinstance(symbol, Type) and not symbol.isPrimitive:
code('#include "mem/protocol/${{symbol.c_ident}}.hh"')
code.write(path, "Types.hh")
for symbol in self.sym_vec:
symbol.writeCodeFiles(path)
def writeHTMLFiles(self, path):
machines = list(self.getAllType(StateMachine))
if len(machines) > 1:
name = "%s_table.html" % machines[0].ident
else:
name = "empty.html"
code = code_formatter()
code('''
<html>
<head>
<title>$path</title>
</head>
<frameset rows="*,30">
<frame name="Table" src="$name">
<frame name="Status" src="empty.html">
</frameset>
</html>
''')
code.write(path, "index.html")
code = code_formatter()
code("<HTML></HTML>")
code.write(path, "empty.html")
for symbol in self.sym_vec:
symbol.writeHTMLFiles(path)
__all__ = [ "SymbolTable" ]
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