190 lines
7.5 KiB
Standard ML
190 lines
7.5 KiB
Standard ML
(*****************************************************************************
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* su4sml --- a SML repository for managing (Secure)UML/OCL models
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* http://projects.brucker.ch/su4sml/
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*
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* context_declarations.sml ---
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* This file is part of su4sml.
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*
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* Copyright (c) 2005-2007 ETH Zurich, Switzerland
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* 2008-2009 Achim D. Brucker, Germany
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*
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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:
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*
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* * 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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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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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
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* from 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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******************************************************************************)
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(* $Id: context_declarations.sml 6727 2007-07-30 08:43:40Z brucker $ *)
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(** Implementation of the Liskov Substitiution Principle. *)
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signature WFCPOG_COMMAND_QUERY_CONSTRAINT =
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sig
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(**
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* All OCL-formulas should only contain operations with are
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* side-effect free. *)
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val strong_is_query : WFCPOG.wfpo -> Rep.Model -> bool
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(**
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* All operations declared to be side-effect free should only contain
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* OCL-formulas which are side-effect free.
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*)
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val weak_is_query : WFCPOG.wfpo -> Rep.Model -> bool
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(**
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* ?
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*)
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(* val modified_only : WFCPOG.wfpo -> Rep.Model -> (Rep_OclType.Path * Rep_OclTerm.OclTerm) list *)
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end
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structure WFCPOG_Command_Query_Constraint:WFCPOG_COMMAND_QUERY_CONSTRAINT =
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struct
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(* su4sml *)
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open Rep_Core
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open Rep_OclTerm
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open Rep_OclType
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open Rep2String
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open Ocl2String
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(* oclparser *)
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open ModelImport
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(* wfcpo-gen *)
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open WFCPOG_Library
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exception WFCPO_QueryCommandError of string
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fun check_weak_classifier class (model as (clist,alist)) =
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let
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val ops = query_operations_of class model
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val op_posts = List.map (fn a => (a,postcondition_of_op a)) ops
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val op_pres = List.map (fn a => (a,precondition_of_op a)) ops
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val check_pres = List.map (fn (oper,pres) =>
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(List.all (fn (a,b) =>
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if (side_effect_free b model)
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then true
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else
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let
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val s1 = "WFC ERROR: Weak Command/Query constraint\n\n"
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val s2 = "Classifier " ^ (string_of_path (name_of class)) ^ " has in the operatin "^(name_of_op oper)^" the precondition " ^ (opt2string a) ^ " with the term "^(ocl2string false b)^" a call to an operation which is not isQuery.\n"
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in
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raise WFCPOG.WFC_FailedMessage (s1^s2)
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end
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) pres)
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) op_pres
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val check_posts = List.map (fn (oper,posts) =>
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(List.all (fn (a,b) =>
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if (side_effect_free b model)
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then true
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else
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let
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val s1 = "WFC ERROR: Weak Command/Query constraint\n\n"
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val s2 = "Classifier " ^ (string_of_path (name_of class)) ^ " has in the operation "^(name_of_op oper)^" postcondition " ^ (opt2string a) ^ " with the term "^(ocl2string false b)^" a call to an operation which is not isQuery.\n"
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in
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raise WFCPOG.WFC_FailedMessage (s1^s2)
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end
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) posts)
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) op_posts
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in
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List.all (fn a => a = true) (check_pres@check_posts)
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end
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fun check_strong_classifier class (model as (clist,alist)) =
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let
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val ops = local_operations_of class
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val invs = local_invariants_of class
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val op_posts = List.map (fn a => (a,postcondition_of_op a)) ops
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val op_pres = List.map (fn a => (a,precondition_of_op a)) ops
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val check_pres = List.map (fn (oper,pres) =>
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(List.all (fn (a,b) =>
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if (side_effect_free b model)
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then true
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else
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let
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val s1 = "WFC ERROR: Strong Command/Query constraint\n\n"
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val s2 = "Classifier " ^ (string_of_path (name_of class)) ^ " has in the operation "^(name_of_op oper)^" precondition " ^ (opt2string a) ^ " with the term "^(ocl2string false b)^" a call to an operation which is not isQuery.\n"
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in
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raise WFCPOG.WFC_FailedMessage (s1^s2)
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end
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) pres)
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) op_pres
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val check_posts = List.map (fn (oper,posts) =>
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(List.all (fn (a,b) =>
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if (side_effect_free b model)
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then true
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else
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let
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val s1 = "WFC ERROR: Strong Command/Query constraint\n\n"
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val s2 = "Classifier " ^ (string_of_path (name_of class)) ^ " has in the operation "^(name_of_op oper)^" postcondition " ^ (opt2string a) ^ " with the term "^(ocl2string false b)^" a call to an operation which is not isQuery.\n"
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in
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raise WFCPOG.WFC_FailedMessage (s1^s2)
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end
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) posts)
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) op_posts
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val check_invs = List.all (fn (a,b) =>
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if (side_effect_free b model)
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then true
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else
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let
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val s1 = "WFC ERROR: Strong Command/Query constraint\n\n"
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val s2 = "Classifier " ^ (string_of_path (name_of class)) ^ " has in the invariant " ^ (opt2string a) ^ " with the term "^(ocl2string false b)^" a call to an operation which is not isQuery.\n"
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in
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raise WFCPOG.WFC_FailedMessage (s1^s2)
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end
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) invs
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in
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List.all (fn a => a = true) (check_pres@check_posts@[check_invs])
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end
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fun weak_is_query po (model as (clist,alist)) =
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let
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val _ = Logger.info ("WFCPOG_Command_Query_Constraint.strong_is_query\n")
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val classes = removeOclLibrary clist
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val res = List.all (fn a => a = true) (List.map (fn a => check_weak_classifier a model
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handle WFCPOG.WFC_FailedMessage s => raise WFCPOG.WFC_FailedException(po,s)) classes)
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val _ = Logger.info ("WFCPOG_Command_Query_Constraint.strong_is_query\n")
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in
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res
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end
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fun strong_is_query po (model as (clist,alist)) =
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let
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val _ = Logger.info ("WFCPOG_Command_Query_Constraint.strong_is_query\n")
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val classes = removeOclLibrary clist
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val res = List.all (fn a => a = true) (List.map (fn a => check_strong_classifier a model
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handle WFCPOG.WFC_FailedMessage s => raise WFCPOG.WFC_FailedException(po,s)) classes)
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val _ = Logger.info ("WFCPOG_Command_Query_Constraint.strong_is_query\n")
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in
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res
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end
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(* | OperationCall (src,styp,["oclLib",_,"modifiedOnly"],[],_)
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=> OclModifiedOnly styp u (ocl2holocl u src) *)
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end;
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