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 m5.util import makeDir
29
30from slicc.generate import html
31from slicc.symbols.StateMachine import StateMachine
32from slicc.symbols.Type import Type
33from slicc.util import Location
34
35class SymbolTable(object):
36 def __init__(self, slicc):
37 self.slicc = slicc
38
39 self.sym_vec = []
40 self.sym_map_vec = [ {} ]
41 self.machine_components = {}
42
43 pairs = {}
44 pairs["enumeration"] = "yes"
45 location = Location("init", 0, no_warning=not slicc.verbose)
46 MachineType = Type(self, "MachineType", location, pairs)
47 self.newSymbol(MachineType)
48
49 pairs = {}
50 pairs["primitive"] = "yes"
51 pairs["external"] = "yes"
52 location = Location("init", 0, no_warning=not slicc.verbose)
53 void = Type(self, "void", location, pairs)
54 self.newSymbol(void)
55
56 def __repr__(self):
57 return "[SymbolTable]" # FIXME
58
59 def codeFormatter(self, *args, **kwargs):
60 return self.slicc.codeFormatter(*args, **kwargs)
61
62 def newSymbol(self, sym):
63 self.registerSym(str(sym), sym)
64 self.sym_vec.append(sym)
65
66 def registerSym(self, id, sym):
67 # Check for redeclaration (in the current frame only)
68 if id in self.sym_map_vec[-1]:
69 sym.error("Symbol '%s' redeclared in same scope.", id)
70
71 # FIXME - warn on masking of a declaration in a previous frame
72 self.sym_map_vec[-1][id] = sym
73
74 def find(self, ident, types=None):
75 for sym_map in reversed(self.sym_map_vec):
76 try:
77 symbol = sym_map[ident]
78 except KeyError:
79 continue
80
81 if types is not None:
82 if not isinstance(symbol, types):
83 symbol.error("Symbol '%s' is not of types '%s'.",
84 symbol,
85 types)
86
87 return symbol
88
89 return None
90
91 def newMachComponentSym(self, symbol):
92 # used to cheat-- that is, access components in other machines
93 machine = self.find("current_machine", StateMachine)
94 if machine:
95 self.machine_components[str(machine)][str(symbol)] = symbol
96
97 def newCurrentMachine(self, sym):
98 self.registerGlobalSym(str(sym), sym)
99 self.registerSym("current_machine", sym)
100 self.sym_vec.append(sym)
101
102 self.machine_components[str(sym)] = {}
103
104 @property
105 def state_machine(self):
106 return self.find("current_machine", StateMachine)
107
108 def pushFrame(self):
109 self.sym_map_vec.append({})
110
111 def popFrame(self):
112 assert len(self.sym_map_vec) > 0
113 self.sym_map_vec.pop()
114
115 def registerGlobalSym(self, ident, symbol):
116 # Check for redeclaration (global frame only)
117 if ident in self.sym_map_vec[0]:
118 symbol.error("Symbol '%s' redeclared in global scope." % ident)
119
120 self.sym_map_vec[0][ident] = symbol
121
122 def getAllType(self, type):
123 for symbol in self.sym_vec:
124 if isinstance(symbol, type):
125 yield symbol
126
| 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 m5.util import makeDir
29
30from slicc.generate import html
31from slicc.symbols.StateMachine import StateMachine
32from slicc.symbols.Type import Type
33from slicc.util import Location
34
35class SymbolTable(object):
36 def __init__(self, slicc):
37 self.slicc = slicc
38
39 self.sym_vec = []
40 self.sym_map_vec = [ {} ]
41 self.machine_components = {}
42
43 pairs = {}
44 pairs["enumeration"] = "yes"
45 location = Location("init", 0, no_warning=not slicc.verbose)
46 MachineType = Type(self, "MachineType", location, pairs)
47 self.newSymbol(MachineType)
48
49 pairs = {}
50 pairs["primitive"] = "yes"
51 pairs["external"] = "yes"
52 location = Location("init", 0, no_warning=not slicc.verbose)
53 void = Type(self, "void", location, pairs)
54 self.newSymbol(void)
55
56 def __repr__(self):
57 return "[SymbolTable]" # FIXME
58
59 def codeFormatter(self, *args, **kwargs):
60 return self.slicc.codeFormatter(*args, **kwargs)
61
62 def newSymbol(self, sym):
63 self.registerSym(str(sym), sym)
64 self.sym_vec.append(sym)
65
66 def registerSym(self, id, sym):
67 # Check for redeclaration (in the current frame only)
68 if id in self.sym_map_vec[-1]:
69 sym.error("Symbol '%s' redeclared in same scope.", id)
70
71 # FIXME - warn on masking of a declaration in a previous frame
72 self.sym_map_vec[-1][id] = sym
73
74 def find(self, ident, types=None):
75 for sym_map in reversed(self.sym_map_vec):
76 try:
77 symbol = sym_map[ident]
78 except KeyError:
79 continue
80
81 if types is not None:
82 if not isinstance(symbol, types):
83 symbol.error("Symbol '%s' is not of types '%s'.",
84 symbol,
85 types)
86
87 return symbol
88
89 return None
90
91 def newMachComponentSym(self, symbol):
92 # used to cheat-- that is, access components in other machines
93 machine = self.find("current_machine", StateMachine)
94 if machine:
95 self.machine_components[str(machine)][str(symbol)] = symbol
96
97 def newCurrentMachine(self, sym):
98 self.registerGlobalSym(str(sym), sym)
99 self.registerSym("current_machine", sym)
100 self.sym_vec.append(sym)
101
102 self.machine_components[str(sym)] = {}
103
104 @property
105 def state_machine(self):
106 return self.find("current_machine", StateMachine)
107
108 def pushFrame(self):
109 self.sym_map_vec.append({})
110
111 def popFrame(self):
112 assert len(self.sym_map_vec) > 0
113 self.sym_map_vec.pop()
114
115 def registerGlobalSym(self, ident, symbol):
116 # Check for redeclaration (global frame only)
117 if ident in self.sym_map_vec[0]:
118 symbol.error("Symbol '%s' redeclared in global scope." % ident)
119
120 self.sym_map_vec[0][ident] = symbol
121
122 def getAllType(self, type):
123 for symbol in self.sym_vec:
124 if isinstance(symbol, type):
125 yield symbol
126
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