Package: SeqModificationObligation

SeqModificationObligation

nameinstructionbranchcomplexitylinemethod
SeqModificationObligation(APlusPlusBinaryExp, IPOContextStack, IPogAssistantFactory)
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Coverage

1: /*******************************************************************************
2: *
3: *        Copyright (C) 2008 Fujitsu Services Ltd.
4: *
5: *        Author: Nick Battle
6: *
7: *        This file is part of VDMJ.
8: *
9: *        VDMJ is free software: you can redistribute it and/or modify
10: *        it under the terms of the GNU General Public License as published by
11: *        the Free Software Foundation, either version 3 of the License, or
12: *        (at your option) any later version.
13: *
14: *        VDMJ is distributed in the hope that it will be useful,
15: *        but WITHOUT ANY WARRANTY; without even the implied warranty of
16: *        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: *        GNU General Public License for more details.
18: *
19: *        You should have received a copy of the GNU General Public License
20: *        along with VDMJ. If not, see <http://www.gnu.org/licenses/>.
21: *
22: ******************************************************************************/
23:
24: package org.overture.pog.obligation;
25:
26: import org.overture.ast.analysis.AnalysisException;
27: import org.overture.ast.expressions.AIndicesUnaryExp;
28: import org.overture.ast.expressions.AMapDomainUnaryExp;
29: import org.overture.ast.expressions.APlusPlusBinaryExp;
30: import org.overture.ast.expressions.ASubsetBinaryExp;
31: import org.overture.ast.lex.LexKeywordToken;
32: import org.overture.ast.lex.VDMToken;
33: import org.overture.pog.pub.IPOContextStack;
34: import org.overture.pog.pub.IPogAssistantFactory;
35: import org.overture.pog.pub.POType;
36:
37: public class SeqModificationObligation extends ProofObligation
38: {
39:         private static final long serialVersionUID = 2541416807923302230L;
40:
41:         public SeqModificationObligation(APlusPlusBinaryExp arg,
42:                         IPOContextStack ctxt, IPogAssistantFactory af)
43:                         throws AnalysisException
44:         {
45:                 super(arg, POType.SEQ_MODIFICATION, ctxt, arg.getLocation(), af);
46:
47:                 /**
48:                  * "seq ++ map" produces "dom map subset inds seq"
49:                  */
50:                 ASubsetBinaryExp subsetExp = new ASubsetBinaryExp();
51:                 subsetExp.setOp(new LexKeywordToken(VDMToken.SUBSET, null));
52:                 AMapDomainUnaryExp domExp = new AMapDomainUnaryExp();
53:                 domExp.setExp(arg.getRight().clone());
54:                 AIndicesUnaryExp indsExp = new AIndicesUnaryExp();
55:                 indsExp.setExp(arg.getLeft().clone());
56:                 subsetExp.setLeft(domExp);
57:                 subsetExp.setRight(indsExp);
58:
59:                 stitch = subsetExp;
60:                 valuetree.setPredicate(ctxt.getPredWithContext(stitch));
61:         }
62: }