public virtual Differences VisitComprehensionBinding(ComprehensionBinding comprehensionBinding1, ComprehensionBinding comprehensionBinding2){
Differences differences = new Differences(comprehensionBinding1, comprehensionBinding2);
if (comprehensionBinding1 == null || comprehensionBinding2 == null){
if (comprehensionBinding1 != comprehensionBinding2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
ComprehensionBinding changes = (ComprehensionBinding)comprehensionBinding2.Clone();
ComprehensionBinding deletions = (ComprehensionBinding)comprehensionBinding2.Clone();
ComprehensionBinding insertions = (ComprehensionBinding)comprehensionBinding2.Clone();
Differences diff = this.VisitTypeNode(comprehensionBinding1.AsTargetVariableType, comprehensionBinding2.AsTargetVariableType);
if (diff == null){Debug.Assert(false); return differences;}
changes.AsTargetVariableType = diff.Changes as TypeNode;
deletions.AsTargetVariableType = diff.Deletions as TypeNode;
insertions.AsTargetVariableType = diff.Insertions as TypeNode;
//Debug.Assert(diff.Changes == changes.AsTargetVariableType && diff.Deletions == deletions.AsTargetVariableType && diff.Insertions == insertions.AsTargetVariableType);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
if (comprehensionBinding1.Mode == comprehensionBinding2.Mode) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
diff = this.VisitExpression(comprehensionBinding1.SourceEnumerable, comprehensionBinding2.SourceEnumerable);
if (diff == null){Debug.Assert(false); return differences;}
changes.SourceEnumerable = diff.Changes as Expression;
deletions.SourceEnumerable = diff.Deletions as Expression;
insertions.SourceEnumerable = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.SourceEnumerable && diff.Deletions == deletions.SourceEnumerable && diff.Insertions == insertions.SourceEnumerable);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(comprehensionBinding1.TargetVariable, comprehensionBinding2.TargetVariable);
if (diff == null){Debug.Assert(false); return differences;}
changes.TargetVariable = diff.Changes as Expression;
deletions.TargetVariable = diff.Deletions as Expression;
insertions.TargetVariable = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.TargetVariable && diff.Deletions == deletions.TargetVariable && diff.Insertions == insertions.TargetVariable);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitTypeNode(comprehensionBinding1.TargetVariableType, comprehensionBinding2.TargetVariableType);
if (diff == null){Debug.Assert(false); return differences;}
changes.TargetVariableType = diff.Changes as TypeNode;
deletions.TargetVariableType = diff.Deletions as TypeNode;
insertions.TargetVariableType = diff.Insertions as TypeNode;
//Debug.Assert(diff.Changes == changes.TargetVariableType && diff.Deletions == deletions.TargetVariableType && diff.Insertions == insertions.TargetVariableType);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
if (differences.NumberOfDifferences == 0){
differences.Changes = null;
differences.Deletions = null;
differences.Insertions = null;
}else{
differences.Changes = changes;
differences.Deletions = deletions;
differences.Insertions = insertions;
}
return differences;
}
public override ComprehensionBinding VisitComprehensionBinding(ComprehensionBinding comprehensionBinding)
{
if (comprehensionBinding == null) return null;
return base.VisitComprehensionBinding((ComprehensionBinding)comprehensionBinding.Clone());
}
