Package: MapComposeObligation

MapComposeObligation

nameinstructionbranchcomplexitylinemethod
MapComposeObligation(ACompBinaryExp, 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.ACompBinaryExp;
28: import org.overture.ast.expressions.AMapDomainUnaryExp;
29: import org.overture.ast.expressions.AMapRangeUnaryExp;
30: import org.overture.ast.expressions.ASubsetBinaryExp;
31: import org.overture.pog.pub.IPOContextStack;
32: import org.overture.pog.pub.IPogAssistantFactory;
33: import org.overture.pog.pub.POType;
34:
35: public class MapComposeObligation extends ProofObligation
36: {
37:         private static final long serialVersionUID = -3501039332724576068L;
38:
39:         public MapComposeObligation(ACompBinaryExp exp, IPOContextStack ctxt,
40:                         IPogAssistantFactory af) throws AnalysisException
41:         {
42:                 super(exp, POType.MAP_COMPOSE, ctxt, exp.getLocation(), af);
43:
44:                 /**
45:                  * The obligation for m1 comp m2 is: rng m2 subset dom m1
46:                  */
47:                 AMapRangeUnaryExp rng = new AMapRangeUnaryExp();
48:                 rng.setExp(exp.getLeft().clone());
49:                 AMapDomainUnaryExp dom = new AMapDomainUnaryExp();
50:                 dom.setExp(exp.getRight().clone());
51:
52:                 ASubsetBinaryExp subset = new ASubsetBinaryExp();
53:                 subset.setLeft(rng);
54:                 subset.setRight(dom);
55:
56:                 stitch = subset;
57:                 valuetree.setPredicate(ctxt.getPredWithContext(subset));
58:         }
59: }