89 lines
3.3 KiB
Python
89 lines
3.3 KiB
Python
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# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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# Copyright (c) 2009 The Hewlett-Packard Development Company
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from m5.util.code_formatter import code_formatter
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from slicc.ast.DeclAST import DeclAST
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from slicc.symbols import Func, Type
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class FuncDeclAST(DeclAST):
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def __init__(self, slicc, return_type, ident, formals, pairs, statements):
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super(FuncDeclAST, self).__init__(slicc, pairs)
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self.return_type = return_type
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self.ident = ident
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self.formals = formals
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self.statements = statements
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def __repr__(self):
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return "[FuncDecl: %s]" % self.ident
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def files(self, hh, cc, parent=None):
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if "external" in self or self.statements is None:
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return
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if parent:
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ident = "%s_%s" % (parent, self.ident)
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else:
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ident = self.ident
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cc.add("%s.cc" % ident)
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def generate(self):
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types = []
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params = []
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void_type = self.symtab.find("void", Type)
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# Generate definition code
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self.symtab.pushFrame()
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# Lookup return type
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return_type = self.return_type.type
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# Generate function header
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for formal in self.formals:
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# Lookup parameter types
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type, ident = formal.generate()
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types.append(type)
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params.append(ident)
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body = code_formatter()
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if self.statements is None:
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self["external"] = "yes"
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else:
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rtype = self.statements.generate(body, return_type)
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self.symtab.popFrame()
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machine = self.state_machine
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func = Func(self.symtab, self.ident, self.location, return_type,
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types, params, str(body), self.pairs, machine)
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if machine is not None:
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machine.addFunc(func)
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else:
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self.symtab.newSymbol(func)
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