switch (args.length) { case 0: return last(); case 1: return last(args[0]); default: Arity.raiseArgumentError(getRuntime(), args.length, 0, 1); return null; // not reached }
switch (args.length) { case 0: return first(); case 1: return first(args[0]); default: Arity.raiseArgumentError(getRuntime(), args.length, 0, 1); return null; // not reached }
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/RubyArray.java
Method name: IRubyObject last(IRubyObject[]) Method name: IRubyObject first(IRubyObject[])
Number of AST nodes: 8 Number of AST nodes: 8
1
switch (args.length) {
1
switch (args.length) {
2
        case 0:
2
        case 0:
3
            return last();
3
            return first();
4
        case 1:
4
        case 1:
5
            return last(args[0]);
5
            return first(args[0]);
6
        default:
6
        default:
7
            Arity.raiseArgumentError(getRuntime(), args.length, 0, 1);
7
            Arity.raiseArgumentError(getRuntime(), args.length, 0, 1);
8
            return null; // not reached
8
            return null; // not reached
9
        }
9
        }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases1
Number of non-refactorable cases0
Time elapsed for finding largest common nesting structure subtrees (ms)0.1
Clones locationClones are declared in the same class
Number of node comparisons34
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements8
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.9
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    switch (args.length)
    1
    switch (args.length)
    2
    case 0:
    2
    case 0:
    3
    return last();
    3
    return last();
    3
    return first();
    Differences
    Expression1Expression2Difference
    lastfirstMETHOD_INVOCATION_NAME_MISMATCH
    3
    return first();
    4
    case 1:
    4
    case 1:
    5
    return last(args[0]);
    5
    return last(args[0]);
    5
    return first(args[0]);
    Differences
    Expression1Expression2Difference
    lastfirstMETHOD_INVOCATION_NAME_MISMATCH
    5
    return first(args[0]);
    6
    default:
    6
    default:
    7
    Arity.raiseArgumentError(getRuntime(), args.length, 0, 1);
    7
    Arity.raiseArgumentError(getRuntime(), args.length, 0, 1);
    8
    return null;
    8
    return null;
    Precondition Violations (0)
    Row Violation