public virtual Differences VisitStackAlloc(StackAlloc alloc1, StackAlloc alloc2){
Differences differences = new Differences(alloc1, alloc2);
if (alloc1 == null || alloc2 == null){
if (alloc1 != alloc2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
StackAlloc changes = (StackAlloc)alloc2.Clone();
StackAlloc deletions = (StackAlloc)alloc2.Clone();
StackAlloc insertions = (StackAlloc)alloc2.Clone();
Differences diff = this.VisitTypeNode(alloc1.ElementType, alloc2.ElementType);
if (diff == null){Debug.Assert(false); return differences;}
changes.ElementType = diff.Changes as TypeNode;
deletions.ElementType = diff.Deletions as TypeNode;
insertions.ElementType = diff.Insertions as TypeNode;
//Debug.Assert(diff.Changes == changes.ElementType && diff.Deletions == deletions.ElementType && diff.Insertions == insertions.ElementType);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(alloc1.NumberOfElements, alloc2.NumberOfElements);
if (diff == null){Debug.Assert(false); return differences;}
changes.NumberOfElements = diff.Changes as Expression;
deletions.NumberOfElements = diff.Deletions as Expression;
insertions.NumberOfElements = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.NumberOfElements && diff.Deletions == deletions.NumberOfElements && diff.Insertions == insertions.NumberOfElements);
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;
}
