CloneSet479


Clone Mass	Clones in CloneSet	Parameter Count	Clone Similarity	Syntax Category [Sequence Length]
30	2	4	0.979	statement_sequence[9]

Clone Abstraction

Parameter Bindings

Clone Instance (Click to see clone)	Line Count	Source Line	Source File
1	30	101	plugins/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/AND_AND_Expression.java
2	30	104	plugins/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/OR_OR_Expression.java

Clone Instance
1

Line Count
30

Source Line
101

Source File

plugins/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/AND_AND_Expression.java

                BranchLabel falseLabel = new BranchLabel(codeStream), endLabel;
                cst = left.optimizedBooleanConstant();
                boolean leftIsConst = cst != Constant.NotAConstant;
                boolean leftIsTrue = leftIsConst && cst.booleanValue() == true;

                cst = right.optimizedBooleanConstant();
                boolean rightIsConst = cst != Constant.NotAConstant;
                boolean rightIsTrue = rightIsConst && cst.booleanValue() == true;

                generateOperands:  {
                        if (leftIsConst) {
                                left.generateCode(currentScope, codeStream, false);
                                if ( !leftIsTrue) {
                                        break generateOperands; // no need to generate right operand
                                }
                        }
                        else   {
                                left.generateOptimizedBoolean(currentScope, codeStream, null, falseLabel, true);
                                // need value, e.g. if (a == 1 && ((b = 2) > 0)) {} -> shouldn't initialize 'b' if a!=1 
                        }
                        if (rightInitStateIndex != -1) {
                                codeStream.addDefinitelyAssignedVariables(currentScope, rightInitStateIndex);
                        }
                        if (rightIsConst) {
                                right.generateCode(currentScope, codeStream, false);
                        }
                        else   {
                                right.generateOptimizedBoolean(currentScope, codeStream, null, falseLabel, valueRequired);
                        }
                }
                if (mergedInitStateIndex != -1) {
                        codeStream.removeNotDefinitelyAssignedVariables(currentScope, mergedInitStateIndex);
                }

Clone Instance
2

Line Count
30

Source Line
104

Source File

plugins/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/OR_OR_Expression.java

                BranchLabel trueLabel = new BranchLabel(codeStream), endLabel;
                cst = left.optimizedBooleanConstant();
                boolean leftIsConst = cst != Constant.NotAConstant;
                boolean leftIsTrue = leftIsConst && cst.booleanValue() == true;

                cst = right.optimizedBooleanConstant();
                boolean rightIsConst = cst != Constant.NotAConstant;
                boolean rightIsTrue = rightIsConst && cst.booleanValue() == true;

                generateOperands:  {
                        if (leftIsConst) {
                                left.generateCode(currentScope, codeStream, false);
                                if (leftIsTrue) {
                                        break generateOperands; // no need to generate right operand
                                }
                        }
                        else   {
                                left.generateOptimizedBoolean(currentScope, codeStream, trueLabel, null, true);
                                // need value, e.g. if (a == 1 || ((b = 2) > 0)) {} -> shouldn't initialize 'b' if a==1 
                        }
                        if (rightInitStateIndex != -1) {
                                codeStream.addDefinitelyAssignedVariables(currentScope, rightInitStateIndex);
                        }
                        if (rightIsConst) {
                                right.generateCode(currentScope, codeStream, false);
                        }
                        else   {
                                right.generateOptimizedBoolean(currentScope, codeStream, trueLabel, null, valueRequired);
                        }
                }
                if (mergedInitStateIndex != -1) {
                        codeStream.removeNotDefinitelyAssignedVariables(currentScope, mergedInitStateIndex);
                }

Clone Abstraction

Parameter Count: 4

Parameter Bindings

BranchLabel  [[#variableb6886280]]= new BranchLabel(codeStream), endLabel;
cst = left.optimizedBooleanConstant();
boolean leftIsConst = cst != Constant.NotAConstant;
boolean leftIsTrue = leftIsConst && cst.booleanValue() == true;
cst = right.optimizedBooleanConstant();
boolean rightIsConst = cst != Constant.NotAConstant;
boolean rightIsTrue = rightIsConst && cst.booleanValue() == true;
generateOperands: {
  if (leftIsConst) {
    left.generateCode(currentScope, codeStream, false);
    if ( [[#variableb6886ce0]]) {
      break generateOperands; // no need to generate right operand
    }
  }
  else {
    left.generateOptimizedBoolean(currentScope, codeStream,  [[#variablea37e94a0]],  [[#variablea37e9440]], true);
  // need value, e.g. if (a == 1 || ((b = 2) > 0)) {} -> shouldn't initialize 'b' if a==1 
  // need value, e.g. if (a == 1 && ((b = 2) > 0)) {} -> shouldn't initialize 'b' if a!=1 
  }
  if (rightInitStateIndex != -1) {
    codeStream.addDefinitelyAssignedVariables(currentScope, rightInitStateIndex);
  }
  if (rightIsConst) {
    right.generateCode(currentScope, codeStream, false);
  }
  else {
    right.generateOptimizedBoolean(currentScope, codeStream,  [[#variablea37e94a0]],  [[#variablea37e9440]], valueRequired);
  }
}
if (mergedInitStateIndex != -1) {
  codeStream.removeNotDefinitelyAssignedVariables(currentScope, mergedInitStateIndex);
}

CloneAbstraction

Parameter Bindings
Parameter Index	Clone Instance	Parameter Name	Value
1	1	`[[#b6886280]]`	trueLabel
1	2	`[[#b6886280]]`	falseLabel
2	1	`[[#b6886ce0]]`	leftIsTrue
2	2	`[[#b6886ce0]]`	!leftIsTrue
3	1	`[[#a37e94a0]]`	trueLabel
3	2	`[[#a37e94a0]]`	null
4	1	`[[#a37e9440]]`	null
4	2	`[[#a37e9440]]`	falseLabel