do { if (module.fastHasClassVariable(internedName)) { return context.getRuntime().getTrue(); } } while ((module = module.getSuperClass()) != null);
do { if (module.hasClassVariable(name)) { return module.storeClassVariable(name, value); } } while ((module = module.getSuperClass()) != null);
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/RubyModule.java File path: /jruby-1.4.0/src/org/jruby/RubyModule.java
Method name: IRubyObject class_variable_defined_p(ThreadContext, IRubyObject) Method name: IRubyObject setClassVar(String, IRubyObject)
Number of AST nodes: 3 Number of AST nodes: 3
1
do {
1
do {
2
            if (module.fastHasClassVariable(internedName)) {
2
            if (module.hasClassVariable(name)) {
3
                return context.getRuntime().getTrue();
3
                return module.storeClassVariable(name, value);
4
            }
4
            }
5
        } while ((module = module.getSuperClass()) != null);
5
        } while ((module = module.getSuperClass()) != null);
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)0.3
Clones locationClones are declared in the same class
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.0
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    5
    do while((module = module.getSuperClass()) != null)
    4
    do while((module = module.getSuperClass()) != null)
    3
    if (module.fastHasClassVariable(internedName))
    3
    if (module.fastHasClassVariable(internedName))
    2
    if (module.hasClassVariable(name))
    Differences
    Expression1Expression2Difference
    fastHasClassVariablehasClassVariableMETHOD_INVOCATION_NAME_MISMATCH
    internedNamenameVARIABLE_NAME_MISMATCH
    Preondition Violations
    Expression module.fastHasClassVariable(internedName) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression module.hasClassVariable(name) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2
    if (module.hasClassVariable(name))
                                                                                                    
    3
    return module.storeClassVariable(name, value);
    Preondition Violations
    Unmatched statement return module.storeClassVariable(name,value); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    Unmatched return module.storeClassVariable(name,value);
    3
    return module.storeClassVariable(name, value);
    4
    return context.getRuntime().getTrue();
    4
    return context.getRuntime().getTrue();
    Preondition Violations
    Unmatched return context.getRuntime().getTrue();
                                                                                      
    Precondition Violations (6)
    Row Violation
    1Expression module.fastHasClassVariable(internedName) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression module.hasClassVariable(name) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Unmatched statement return module.storeClassVariable(name,value); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Unmatched return module.storeClassVariable(name,value);
    5Unmatched return context.getRuntime().getTrue();
    6Clone fragment #1 returns variables , while Clone fragment #2 returns variables module