switch (args.length) { case 1: return fetch(context, args[0], block); case 2: return fetch(context, args[0], args[1], block); default: Arity.raiseArgumentError(getRuntime(), args.length, 1, 2); return null; // not reached }
switch (args.length) { case 1: return define_method(context, args[0], block); case 2: return define_method(context, args[0], args[1], block); default: throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)"); }
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/RubyArray.java File path: /jruby-1.4.0/src/org/jruby/RubyModule.java
Method name: IRubyObject fetch(ThreadContext, IRubyObject[], Block) Method name: IRubyObject define_method(ThreadContext, IRubyObject[], Block)
Number of AST nodes: 8 Number of AST nodes: 7
1
switch (args.length) {
1
switch (args.length) {
2
        case 1:
2
        case 1:
3
            return fetch(context, args[0], block);
3
            return define_method(context, args[0], block);
4
        case 2:
4
        case 2:
5
            return fetch(context, args[0], args[1], block);
5
            return define_method(context, args[0], args[1], block);
6
        default:
6
        default:
7
            Arity.raiseArgumentError(getRuntime(), args.length, 1, 2);
7
            
8
            return null; // not reached
8
throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)");
9
        }
9
        }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.2
Clones locationClones are in different classes having the same super class
Number of node comparisons27
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)147.5
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    switch (args.length)
    1
    switch (args.length)
    2
    case 1:
    2
    case 1:
    3
    return fetch(context, args[0], block);
    3
    return fetch(context, args[0], block);
    3
    return define_method(context, args[0], block);
    Differences
    Expression1Expression2Difference
    fetchdefine_methodMETHOD_INVOCATION_NAME_MISMATCH
    3
    return define_method(context, args[0], block);
    4
    case 2:
    4
    case 2:
    5
    return fetch(context, args[0], args[1], block);
    5
    return fetch(context, args[0], args[1], block);
    5
    return define_method(context, args[0], args[1], block);
    Differences
    Expression1Expression2Difference
    fetchdefine_methodMETHOD_INVOCATION_NAME_MISMATCH
    5
    return define_method(context, args[0], args[1], block);
    6
    default:
    6
    default:
                                                                                                                                                                                                        
    7
    throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)");
    Preondition Violations
    Unmatched throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)");
    7
    throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)");
    7
    Arity.raiseArgumentError(getRuntime(), args.length, 1, 2);
                                                                                                                        
    8
    return null;
    8
    return null;
    Preondition Violations
    Unmatched return null;
                                  
    Precondition Violations (2)
    Row Violation
    1Unmatched throw context.getRuntime().newArgumentError("wrong # of arguments(" + args.length + " for 2)");
    2Unmatched return null;