734ef9a209
SLICC uses pointers for cache and TBE entries but not for directory entries. This patch changes the protocols, SLICC and Ruby memory system so that even directory entries are referenced using pointers. --HG-- extra : rebase_source : abeb4ac78033d003153751f216fd1948251fcfad
195 lines
8.3 KiB
Python
195 lines
8.3 KiB
Python
# 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 slicc.ast.ExprAST import ExprAST
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class MethodCallExprAST(ExprAST):
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def __init__(self, slicc, proc_name, expr_ast_vec):
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super(MethodCallExprAST, self).__init__(slicc)
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self.proc_name = proc_name
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self.expr_ast_vec = expr_ast_vec
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def generate(self, code):
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tmp = self.slicc.codeFormatter()
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paramTypes = []
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for expr_ast in self.expr_ast_vec:
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return_type = expr_ast.generate(tmp)
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paramTypes.append(return_type)
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obj_type, methodId, prefix = self.generate_prefix(paramTypes)
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# generate code
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params = []
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for expr_ast in self.expr_ast_vec:
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return_type,tcode = expr_ast.inline(True)
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params.append(str(tcode))
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fix = code.nofix()
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code("$prefix${{self.proc_name}}(${{', '.join(params)}}))")
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code.fix(fix)
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# Verify that this is a method of the object
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if methodId not in obj_type.methods:
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self.error("Invalid method call: Type '%s' does not have a method '%s'",
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obj_type, methodId)
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if len(self.expr_ast_vec) != \
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len(obj_type.methods[methodId].param_types):
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# Right number of parameters
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self.error("Wrong number of parameters for function name: '%s', " + \
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"expected: , actual: ", proc_name,
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len(obj_type.methods[methodId].param_types),
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len(self.expr_ast_vec))
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for actual_type, expected_type in \
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zip(paramTypes, obj_type.methods[methodId].param_types):
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if actual_type != expected_type and \
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str(actual_type["interface"]) != str(expected_type):
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self.error("Type mismatch: expected: %s actual: %s",
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expected_type, actual_type)
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# Return the return type of the method
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return obj_type.methods[methodId].return_type
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def findResources(self, resources):
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pass
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class MemberMethodCallExprAST(MethodCallExprAST):
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def __init__(self, slicc, obj_expr_ast, proc_name, expr_ast_vec):
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s = super(MemberMethodCallExprAST, self)
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s.__init__(slicc, proc_name, expr_ast_vec)
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self.obj_expr_ast = obj_expr_ast
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def __repr__(self):
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return "[MethodCallExpr: %r%r %r]" % (self.proc_name,
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self.obj_expr_ast,
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self.expr_ast_vec)
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def generate_prefix(self, paramTypes):
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code = self.slicc.codeFormatter()
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# member method call
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obj_type = self.obj_expr_ast.generate(code)
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methodId = obj_type.methodId(self.proc_name, paramTypes)
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prefix = ""
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implements_interface = False
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if methodId in obj_type.methods:
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return_type = obj_type.methods[methodId].return_type
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else:
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#
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# Check whether the method is implemented by the super class
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if "interface" in obj_type:
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interface_type = self.symtab.find(obj_type["interface"]);
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if methodId in interface_type.methods:
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return_type = interface_type.methods[methodId].return_type
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obj_type = interface_type
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else:
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self.error("Invalid method call: " \
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"Type '%s' does not have a method %s, '%s'",
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obj_type, self.proc_name, methodId)
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else:
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#
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# The initial method check has failed, but before generating an
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# error we must check whether any of the paramTypes implement
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# an interface. If so, we must check if the method ids using
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# the inherited types exist.
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#
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# This code is a temporary fix and only checks for the methodId
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# where all paramTypes are converted to their inherited type. The
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# right way to do this is to replace slicc's simple string
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# comparison for determining the correct overloaded method, with a
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# more robust param by param check.
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#
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implemented_paramTypes = []
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for paramType in paramTypes:
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implemented_paramType = paramType
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if paramType.isInterface:
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implements_interface = True
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implemented_paramType.abstract_ident = paramType["interface"]
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else:
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implemented_paramType.abstract_ident = paramType.c_ident
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implemented_paramTypes.append(implemented_paramType)
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if implements_interface:
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implementedMethodId = obj_type.methodIdAbstract(self.proc_name,
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implemented_paramTypes)
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else:
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implementedMethodId = ""
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if implementedMethodId not in obj_type.methods:
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self.error("Invalid method call: " \
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"Type '%s' does not have a method %s, '%s' nor '%s'",
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obj_type, self.proc_name, methodId, implementedMethodId)
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else:
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#
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# Replace the methodId with the implementedMethodId found in
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# the method list.
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#
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methodId = implementedMethodId
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return_type = obj_type.methods[methodId].return_type
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if return_type.isInterface:
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prefix = "static_cast<%s &>" % return_type.c_ident
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if str(obj_type) == "AbstractCacheEntry" or \
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str(obj_type) == "AbstractEntry" or \
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("interface" in obj_type and (
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obj_type["interface"] == "AbstractCacheEntry" or
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obj_type["interface"] == "AbstractEntry")):
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prefix = "%s((*(%s))." % (prefix, code)
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else:
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prefix = "%s((%s)." % (prefix, code)
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return obj_type, methodId, prefix
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class ClassMethodCallExprAST(MethodCallExprAST):
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def __init__(self, slicc, type_ast, proc_name, expr_ast_vec):
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s = super(ClassMethodCallExprAST, self)
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s.__init__(slicc, proc_name, expr_ast_vec)
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self.type_ast = type_ast
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def __repr__(self):
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return "[MethodCallExpr: %r %r]" % (self.proc_name, self.expr_ast_vec)
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def generate_prefix(self, paramTypes):
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# class method call
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prefix = "(%s::" % self.type_ast
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obj_type = self.type_ast.type
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methodId = obj_type.methodId(self.proc_name, paramTypes)
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return obj_type, methodId, prefix
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__all__ = [ "MemberMethodCallExprAST", "ClassMethodCallExprAST" ]
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