public virtual Differences VisitExpressionSnippet(ExpressionSnippet snippet1, ExpressionSnippet snippet2){
Differences differences = new Differences(snippet1, snippet2);
if (snippet1 == null || snippet2 == null){
if (snippet1 != snippet2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
ExpressionSnippet changes = (ExpressionSnippet)snippet2.Clone();
ExpressionSnippet deletions = (ExpressionSnippet)snippet2.Clone();
ExpressionSnippet insertions = (ExpressionSnippet)snippet2.Clone();
if (snippet1.SourceContext.Document == null || snippet2.SourceContext.Document == null){
if (snippet1.SourceContext.Document == snippet2.SourceContext.Document) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
}else if (snippet1.SourceContext.Document.Name == snippet2.SourceContext.Document.Name)
differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
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 Expression VisitExpressionSnippet(ExpressionSnippet snippet)
{
if (snippet == null) return null;
return base.VisitExpressionSnippet((ExpressionSnippet)snippet.Clone());
}