173-146-206

if (pattern == null) { setPatternFacet(basicGetPatternFacet(eDataType)); } return pattern;
if (result == null) { result = new ArrayList<EStructuralFeature>(); } result.add(eStructuralFeature);

Clone fragments detected by clone detection tool
File path: /emf-2.4.1/src/org/eclipse/emf/ecore/util/BasicExtendedMetaData.java |  | File path: /emf-2.4.1/src/org/eclipse/emf/ecore/util/BasicExtendedMetaData.java
Method name: `List getPatternFacet()` |  | Method name: `List getAttributes(EClass)`
Number of AST nodes: 3 |  | Number of AST nodes: 3

1

    if (pattern == null)↵

1

    if (result == null)↵

2

          {↵

2

              {↵

3

            setPatternFacet(basicGetPatternFacet(eDataType));↵

3

            ↵

4

          }↵

4

        result = new ArrayList<EStructuralFeature>();↵

5

              }↵

5

          return pattern;

6

              result.add(eStructuralFeature);

See real code fragment |  | See real code fragment

Summary
Number of common nesting structure subtrees | 1
Number of refactorable cases | 0
Number of non-refactorable cases | 1
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.2
Clones location | Clones are in the same java file
Number of node comparisons | 5

1. {Non-refactorable}

   Mapping Summary
   Number of mapped statements | 1
   Number of unmapped statements in the first code fragment | 2
   Number of unmapped statements in the second code fragment | 2
   Time elapsed for statement mapping (ms) | 1.2
   Clone type | Type 2

   Mapped Statements
   ID | Statement |  | ID | Statement
   --- | --- | --- | --- | ---

   1

       if (pattern == null)

   1 | if (pattern == null)
   8 | if (result == null)

   Differences
   Expression1 | Expression2 | Difference
   --- | --- | ---
   pattern | result | VARIABLE_NAME_MISMATCH
   java.util.List | java.util.List | VARIABLE_TYPE_MISMATCH

   Preondition Violations

   Type java.util.List<java.lang.String> of variable pattern does not match with type java.util.List<org.eclipse.emf.ecore.EStructuralFeature> of variable result
   - Make classes java.util.List and java.util.List extend a common superclass

   8

       if (result == null)

   2

       setPatternFacet(basicGetPatternFacet(eDataType));

   2 | setPatternFacet(basicGetPatternFacet(eDataType));

   Preondition Violations
   Unmatched statement setPatternFacet(basicGetPatternFacet(eDataType)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   9 | result = new ArrayList<EStructuralFeature>();

   Preondition Violations
   Unmatched statement result=new ArrayList<EStructuralFeature>(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted

   9

       result = new ArrayList<EStructuralFeature>();

   3

       return pattern;

   3 | return pattern;

   Preondition Violations
   Unmatched return pattern;

   10 | result.add(eStructuralFeature);

   Preondition Violations
   Unmatched statement result.add(eStructuralFeature); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted

   10

       result.add(eStructuralFeature);

   Precondition Violations (6)
   Row | Violation
   --- | ---
   1 | Type java.util.List<java.lang.String> of variable pattern does not match with type java.util.List<org.eclipse.emf.ecore.EStructuralFeature> of variable result
   2 | Unmatched statement setPatternFacet(basicGetPatternFacet(eDataType)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   3 | Unmatched statement result=new ArrayList<EStructuralFeature>(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
   4 | Unmatched return pattern;
   5 | Unmatched statement result.add(eStructuralFeature); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
   6 | The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero