} // will raise an exception if file is null
// the actual update routine
/// <summary>
/// Attempts to perform the necessary updates when replacing the range [start, start + count) by newText for the given file
/// wrapping each step in a QsCompilerError.RaiseOnFailure.
/// </summary>
private static void Update(this FileContentManager file, int start, int count, IEnumerable <string> newText)
{
CodeLine[] replacements = QsCompilerError.RaiseOnFailure(() =>
ComputeCodeLines(newText, start > 0 ? file.GetLine(start - 1) : null).ToArray(),
"scope tracking update failed during computing the replacements");
IEnumerable <CodeLine> updateRemaining = QsCompilerError.RaiseOnFailure(() =>
ComputeUpdates(file, start, count, replacements),
"scope tracking update failed during computing the updates");
QsCompilerError.RaiseOnFailure(() =>
{
if (updateRemaining == null)
{
file.ContentUpdate(start, count, replacements);
}
else
{
file.ContentUpdate(start, file.NrLines() - start, replacements.Concat(updateRemaining).ToArray());
}
}, "the proposed ContentUpdate failed");
QsCompilerError.RaiseOnFailure(() =>
{
if (updateRemaining == null)
{
file.AddScopeDiagnostics(file.ComputeScopeDiagnostics(start, replacements.Length));
}
else
{
file.AddScopeDiagnostics(file.ComputeScopeDiagnostics(start));
}
file.AddScopeDiagnostics(file.CheckForMissingClosings());
}, "updating the scope diagnostics failed");
}