summaryrefslogtreecommitdiff
path: root/tutorial/examples/orcheck/OverrideCheckerClass.java
blob: 6631dc662f9b62ab2629064c3678083f7ee26d51 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
/*
 * This code was generated by ojc.
 */
/*
 * OverrideCheckerClass.oj
 *
 * Apr 29, 1999, by Michiaki Tatsubori
 * Feb 2, 1999, by Michiaki Tatsubori
 */
package examples.orcheck;


import openjava.mop.*;
import openjava.ptree.*;
import openjava.syntax.*;


/**
 * The metaclass <code>OverloadCheckerClass</code> provides classes
 * with a facility of checking if a method overrides the method of
 * its superclass.
 * <p>
 * The class <code>MyObject</code> following is a use-case of
 * this metaclass:
 * <pre>
 * class MyObject instantiates OverrideCheckerClass {
 *     public overriding tostring( Object[] arg ) { .. }
 * }
 * </pre>
 * Here, you intend to override the method <tt>toString()</tt> surely.
 * Compilation of this class shows warning that you do not 
 * override any method.  This can help you to become aware of potential
 * bugs.
 *
 * @author   Michiaki Tatsubori
 * @version  1.0
 * @see openjava.mop.OJClass#translateDefinition()
 * @see openjava.mop.OJClass#isRegisteredModifier()
 */
public class OverrideCheckerClass extends OJClass
{

    private static final String OVERRIDING = "overriding";

    public void translateDefinition()
        throws MOPException
    {
        OJMethod[] methods = getDeclaredMethods();
        for (int i = 0; i < methods.length; ++i) {
            if (!methods[i].getModifiers().has( OVERRIDING )) {
                continue;
            }
            OJClass[] paramtypes = methods[i].getParameterTypes();
            String name = methods[i].getName();
            OJClass[] ptypes = methods[i].getParameterTypes();
            try {
                getSuperclass().getMethod( name, ptypes, this );
            } catch ( Exception e ) {
                System.err.println( "WARNING: " + methods[i] + " doesn't " + "override any method in superclasses." );
            }
        }
    }

    public static boolean isRegisteredModifier( String keyword )
    {
        if (keyword.equals( OVERRIDING )) {
            return true;
        }
        return false;
    }

    public OverrideCheckerClass( openjava.mop.Environment oj_param0, openjava.mop.OJClass oj_param1, openjava.ptree.ClassDeclaration oj_param2 )
    {
        super( oj_param0, oj_param1, oj_param2 );
    }

    public OverrideCheckerClass( java.lang.Class oj_param0, openjava.mop.MetaInfo oj_param1 )
    {
        super( oj_param0, oj_param1 );
    }

}