2278363015
This is simply a translation of the C++ slicc into python with very minimal reorganization of the code. The output can be verified as nearly identical by doing a "diff -wBur". Slicc can easily be run manually by using util/slicc
128 lines
5 KiB
Python
128 lines
5 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 m5.util import code_formatter
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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 = code_formatter()
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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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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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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:
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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 = code_formatter()
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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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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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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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