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;

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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.ast.DeclAST import DeclAST
29from slicc.symbols import Func, Type
30
31class FuncDeclAST(DeclAST):
32 def __init__(self, slicc, return_type, ident, formals, pairs, statements):
33 super(FuncDeclAST, self).__init__(slicc, pairs)
34
35 self.return_type = return_type

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63
64 # Generate function header
65 for formal in self.formals:
66 # Lookup parameter types
67 type, ident = formal.generate()
68 types.append(type)
69 params.append(ident)
70
71 body = self.slicc.codeFormatter()
72 if self.statements is None:
73 self["external"] = "yes"
74 else:
75 rtype = self.statements.generate(body, return_type)
76
77 self.symtab.popFrame()
78
79 machine = self.state_machine
80 func = Func(self.symtab, self.ident, self.location, return_type,
81 types, params, str(body), self.pairs, machine)
82
83 if machine is not None:
84 machine.addFunc(func)
85 else:
86 self.symtab.newSymbol(func)