Source Code Cross Referenced for ModelConsistencyChecker.java in  » Code-Analyzer » Spoon » spoon » reflect » visitor » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Code Analyzer » Spoon » spoon.reflect.visitor 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /* 
02:         * Spoon - http://spoon.gforge.inria.fr/
03:         * Copyright (C) 2006 INRIA Futurs <renaud.pawlak@inria.fr>
04:         * 
05:         * This software is governed by the CeCILL-C License under French law and
06:         * abiding by the rules of distribution of free software. You can use, modify 
07:         * and/or redistribute the software under the terms of the CeCILL-C license as 
08:         * circulated by CEA, CNRS and INRIA at http://www.cecill.info. 
09:         * 
10:         * This program is distributed in the hope that it will be useful, but WITHOUT 
11:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
12:         * FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL-C License for more details.
13:         *  
14:         * The fact that you are presently reading this means that you have had
15:         * knowledge of the CeCILL-C license and that you accept its terms.
16:         */
17:
18:        package spoon.reflect.visitor;
19:
20:        import java.util.Stack;
21:
22:        import spoon.processing.Environment;
23:        import spoon.processing.Severity;
24:        import spoon.reflect.declaration.CtElement;
25:
26:        /**
27:         * This scanner checks that a program model is consistent whith regards to the
28:         * parent elements (children must have the right parent). This class can be used
29:         * to validate that a program transformation does not harm the model integrity,
30:         * and also to automatically fix it when possible.
31:         */
32:        public class ModelConsistencyChecker extends CtScanner {
33:
34:            boolean fixInconsistencies = false;
35:
36:            Environment environment;
37:
38:            Stack<CtElement> stack = new Stack<CtElement>();
39:
40:            /**
41:             * Creates a new model consistency checker.
42:             * 
43:             * @param environment
44:             *            the environment where to report errors
45:             * @param fixInconsistencies
46:             *            automatically fix the inconsitencies rather than reporting
47:             *            warnings (to report warnings, set this to false)
48:             */
49:            public ModelConsistencyChecker(Environment environment,
50:                    boolean fixInconsistencies) {
51:                this .fixInconsistencies = fixInconsistencies;
52:                this .environment = environment;
53:            }
54:
55:            /**
56:             * Enters an element.
57:             */
58:            @Override
59:            public void enter(CtElement element) {
60:                if (!stack.isEmpty()) {
61:                    if (element.getParent() != stack.peek()) {
62:                        if (fixInconsistencies) {
63:                            element.setParent(stack.peek());
64:                        } else {
65:                            environment.report(null, Severity.WARNING,
66:                                    "inconsistent parent for " + element);
67:                        }
68:                    }
69:                }
70:                stack.push(element);
71:            }
72:
73:            /**
74:             * Exits an element.
75:             */
76:            @Override
77:            protected void exit(CtElement e) {
78:                stack.pop();
79:            }
80:
81:        }
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