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author | Derek Hower <drh5@cs.wisc.edu> | 2010-01-19 15:48:12 -0600 |
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committer | Derek Hower <drh5@cs.wisc.edu> | 2010-01-19 15:48:12 -0600 |
commit | 279f179babc9e5663156777c533c06edc91bce9a (patch) | |
tree | e6718ee514cc81678491b50562ce8c463c0b20fd /src/mem/slicc/ast/FuncDeclAST.py | |
parent | 5aa104e072eb20f6aca49b169521b0c2da33c844 (diff) | |
parent | 295516a590b6e47c9a881f193027447e500c749c (diff) | |
download | gem5-279f179babc9e5663156777c533c06edc91bce9a.tar.xz |
merge
Diffstat (limited to 'src/mem/slicc/ast/FuncDeclAST.py')
-rw-r--r-- | src/mem/slicc/ast/FuncDeclAST.py | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/FuncDeclAST.py b/src/mem/slicc/ast/FuncDeclAST.py new file mode 100644 index 000000000..980804c2a --- /dev/null +++ b/src/mem/slicc/ast/FuncDeclAST.py @@ -0,0 +1,88 @@ +# 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.code_formatter import code_formatter + +from slicc.ast.DeclAST import DeclAST +from slicc.symbols import Func, Type + +class FuncDeclAST(DeclAST): + def __init__(self, slicc, return_type, ident, formals, pairs, statements): + super(FuncDeclAST, self).__init__(slicc, pairs) + + self.return_type = return_type + self.ident = ident + self.formals = formals + self.statements = statements + + def __repr__(self): + return "[FuncDecl: %s]" % self.ident + + def files(self, parent=None): + if "external" in self or self.statements is None: + return set() + + if parent: + ident = "%s_%s" % (parent, self.ident) + else: + ident = self.ident + return set(("%s.cc" % ident,)) + + def generate(self): + types = [] + params = [] + void_type = self.symtab.find("void", Type) + + # Generate definition code + self.symtab.pushFrame() + + # Lookup return type + return_type = self.return_type.type + + # Generate function header + for formal in self.formals: + # Lookup parameter types + type, ident = formal.generate() + types.append(type) + params.append(ident) + + body = code_formatter() + if self.statements is None: + self["external"] = "yes" + else: + rtype = self.statements.generate(body, return_type) + + self.symtab.popFrame() + + machine = self.state_machine + func = Func(self.symtab, self.ident, self.location, return_type, + types, params, str(body), self.pairs, machine) + + if machine is not None: + machine.addFunc(func) + else: + self.symtab.newSymbol(func) |