IRubyObject line = gets(context, args); if (line.isNil()) throw getRuntime().newEOFError(); return line;
IRubyObject result = op_aref(context, arg0); if (!result.isNil()) op_aset(context, arg0, RubyString.newEmptyString(context.getRuntime())); return result;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/RubyStringIO.java File path: /jruby-1.4.0/src/org/jruby/RubyString.java
Method name: IRubyObject readline(ThreadContext, IRubyObject[]) Method name: IRubyObject slice_bang(ThreadContext, IRubyObject)
Number of AST nodes: 4 Number of AST nodes: 4
1
IRubyObject line = gets(context, args);
1
IRubyObject result = op_aref(context, arg0);
2
        if (line.isNil()) throw getRuntime().newEOFError();
2
        if (!result.isNil()) op_aset(context, arg0, RubyString.newEmptyString(context.getRuntime()));
3
        
4
        return line;
3
        return result;
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)0.1
Clones locationClones are in different classes having the same super class
Number of node comparisons8
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.9
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
                                                                                            
    1
    IRubyObject result = op_aref(context, arg0);
    1
    IRubyObject line = gets(context, args);
                                                                                  
    2
    if (line.isNil())
    2
    if (line.isNil())
    2
    if (!result.isNil())
    Differences
    Expression1Expression2Difference
    line.isNil()!result.isNil()TYPE_COMPATIBLE_REPLACEMENT
    2
    if (!result.isNil())
                                                                                                                                                      
    3
    op_aset(context, arg0, RubyString.newEmptyString(context.getRuntime()));
    3
    throw getRuntime().newEOFError();
    3
    throw getRuntime().newEOFError();
    Preondition Violations
    Unmatched throw getRuntime().newEOFError();
                                                                            
    4
    return line;
    4
    return line;
    4
    return result;
    Differences
    Expression1Expression2Difference
    lineresultVARIABLE_NAME_MISMATCH
    4
    return result;
    Precondition Violations (1)
    Row Violation
    1Unmatched throw getRuntime().newEOFError();