public virtual Differences VisitForEach(ForEach forEach1, ForEach forEach2){
Differences differences = new Differences(forEach1, forEach2);
if (forEach1 == null || forEach2 == null){
if (forEach1 != forEach2) differences.NumberOfDifferences++; else differences.NumberOfSimilarities++;
return differences;
}
ForEach changes = (ForEach)forEach2.Clone();
ForEach deletions = (ForEach)forEach2.Clone();
ForEach insertions = (ForEach)forEach2.Clone();
Differences diff = this.VisitBlock(forEach1.Body, forEach2.Body);
if (diff == null){Debug.Assert(false); return differences;}
changes.Body = diff.Changes as Block;
deletions.Body = diff.Deletions as Block;
insertions.Body = diff.Insertions as Block;
Debug.Assert(diff.Changes == changes.Body && diff.Deletions == deletions.Body && diff.Insertions == insertions.Body);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(forEach1.SourceEnumerable, forEach2.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.VisitExpressionList(forEach1.Invariants, forEach2.Invariants, out changes.Invariants, out deletions.Invariants, out insertions.Invariants);
if (diff == null){Debug.Assert(false); return differences;}
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(forEach1.InductionVariable, forEach2.InductionVariable);
if (diff == null){Debug.Assert(false); return differences;}
changes.InductionVariable = diff.Changes as Expression;
deletions.InductionVariable = diff.Deletions as Expression;
insertions.InductionVariable = diff.Insertions as Expression;
Debug.Assert(diff.Changes == changes.InductionVariable && diff.Deletions == deletions.InductionVariable && diff.Insertions == insertions.InductionVariable);
differences.NumberOfDifferences += diff.NumberOfDifferences;
differences.NumberOfSimilarities += diff.NumberOfSimilarities;
diff = this.VisitExpression(forEach1.TargetVariable, forEach2.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(forEach1.TargetVariableType, forEach2.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 (forEach1.StatementTerminatesNormallyIfEnumerableIsNull == forEach2.StatementTerminatesNormallyIfEnumerableIsNull) differences.NumberOfSimilarities++; else differences.NumberOfDifferences++;
if (forEach1.StatementTerminatesNormallyIfEnumeratorIsNull == forEach2.StatementTerminatesNormallyIfEnumeratorIsNull) 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 Statement VisitForEach(ForEach forEach)
{
if (forEach == null) return null;
return base.VisitForEach((ForEach)forEach.Clone());
}