for (; currentArgElement < preArgsCount; currentArgElement++) { // extract item from array method.aload(argsIndex); method.pushInt(currentArgElement); // index for the item // this could probably be more efficient, bailing out on assigning args past the end? methodCompiler.loadNil(); methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class)); requiredAssignment.nextValue(methodCompiler, preArgs, currentArgElement); }
for (; currentArgElement < postArgsCount; currentArgElement++) { // extract item from array method.aload(argsIndex); method.pushInt(currentArgElement); // index for the item // this could probably be more efficient, bailing out on assigning args past the end? methodCompiler.loadNil(); methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class)); requiredAssignment.nextValue(methodCompiler, postArgs, currentArgElement); }
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/compiler/impl/AbstractVariableCompiler.java File path: /jruby-1.4.0/src/org/jruby/compiler/impl/AbstractVariableCompiler.java
Method name: void assignMethodArguments19(Object, int, Object, int, int, Object, int, ArrayCallback, ArrayCallback, ArrayCallback, CompilerCallback, CompilerCallback) Method name: void assignMethodArguments19(Object, int, Object, int, int, Object, int, ArrayCallback, ArrayCallback, ArrayCallback, CompilerCallback, CompilerCallback)
Number of AST nodes: 6 Number of AST nodes: 6
1
for (; currentArgElement < preArgsCount; currentArgElement++) {
1
for (; currentArgElement < postArgsCount; currentArgElement++) {
2
                    // extract item from array
2
                    // extract item from array
3
                    method.aload(argsIndex);
3
                    method.aload(argsIndex);
4
                    method.pushInt(currentArgElement); // index for the item
4
                    method.pushInt(currentArgElement); // index for the item
5
                    // this could probably be more efficient, bailing out on assigning args past the end?
5
                    // this could probably be more efficient, bailing out on assigning args past the end?
6
                    methodCompiler.loadNil();
6
                    methodCompiler.loadNil();
7
                    methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class));
7
                    methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class));
8
                    requiredAssignment.nextValue(methodCompiler, preArgs, currentArgElement);
8
                    requiredAssignment.nextValue(methodCompiler, postArgs, currentArgElement);
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)0.3
Clones locationClones are in the same method
Number of node comparisons37
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements6
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)2.7
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    8
    for (; currentArgElement < preArgsCount; currentArgElement++)
    8
    for (; currentArgElement < preArgsCount; currentArgElement++)
    39
    for (; currentArgElement < postArgsCount; currentArgElement++)
    Differences
    Expression1Expression2Difference
    preArgsCountpostArgsCountVARIABLE_NAME_MISMATCH
    39
    for (; currentArgElement < postArgsCount; currentArgElement++)
    9
    method.aload(argsIndex);
    40
    method.aload(argsIndex);
    10
    method.pushInt(currentArgElement);
    41
    method.pushInt(currentArgElement);
    11
    methodCompiler.loadNil();
    42
    methodCompiler.loadNil();
    12
    methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class));
    43
    methodCompiler.invokeUtilityMethod("elementOrNil", sig(IRubyObject.class, IRubyObject[].class, int.class, IRubyObject.class));
    13
    requiredAssignment.nextValue(methodCompiler, preArgs, currentArgElement);
    13
    requiredAssignment.nextValue(methodCompiler, preArgs, currentArgElement);
    44
    requiredAssignment.nextValue(methodCompiler, postArgs, currentArgElement);
    Differences
    Expression1Expression2Difference
    preArgspostArgsVARIABLE_NAME_MISMATCH
    44
    requiredAssignment.nextValue(methodCompiler, postArgs, currentArgElement);
    Precondition Violations (1)
    Row Violation
    1Clone fragment #1 returns variables currentArgElement , while Clone fragment #2 returns variables