public virtual Differences VisitAssignmentStatement(AssignmentStatement assignment1, AssignmentStatement assignment2){
Differences differences = new Differences(assignment1, assignment2);
if (assignment1 == null || assignment2 == null){
if (assignment1 != assignment2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
AssignmentStatement changes = (AssignmentStatement)assignment2.Clone();
AssignmentStatement deletions = (AssignmentStatement)assignment2.Clone();
AssignmentStatement insertions = (AssignmentStatement)assignment2.Clone();
if (assignment1.Operator == assignment2.Operator) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
Differences diff = this.VisitExpression(assignment1.Source, assignment2.Source);
if (diff == null){Debug.Assert(false); return differences;}
changes.Source = diff.Changes as Expression;
deletions.Source = diff.Deletions as Expression;
insertions.Source = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.Source && diff.Deletions == deletions.Source && diff.Insertions == insertions.Source);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(assignment1.Target, assignment2.Target);
if (diff == null){Debug.Assert(false); return differences;}
changes.Target = diff.Changes as Expression;
deletions.Target = diff.Deletions as Expression;
insertions.Target = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.Target && diff.Deletions == deletions.Target && diff.Insertions == insertions.Target);
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 Statement VisitAssignmentStatement(AssignmentStatement assignment)
{
if (assignment == null) return null;
return base.VisitAssignmentStatement((AssignmentStatement)assignment.Clone());
}