ReadBlockAsync() [2/2]

override ValueTask< int > System.IO.StreamReader.ReadBlockAsync ( Memory< char > buffer, CancellationToken cancellationToken = default(CancellationToken) )

inlinevirtualinherited

Reimplemented from System.IO.TextReader.

Definition at line 974 of file StreamReader.cs.

    {
        if (GetType() != typeof(StreamReader))
        {
            return base.ReadBlockAsync(buffer, cancellationToken);
        }
        ThrowIfDisposed();
        CheckAsyncTaskInProgress();
        if (cancellationToken.IsCancellationRequested)
        {
            return ValueTask.FromCanceled<int>(cancellationToken);
        }
        ValueTask<int> result = ReadBlockAsyncInternal(buffer, cancellationToken);
        if (result.IsCompletedSuccessfully)
        {
            return result;
        }
        return new ValueTask<int>((Task<int>)(_asyncReadTask = result.AsTask()));
    }

References System.IO.StreamReader._asyncReadTask, System.Threading.Tasks.ValueTask< TResult >.AsTask(), System.buffer, System.cancellationToken, System.IO.StreamReader.CheckAsyncTaskInProgress(), System.Threading.Tasks.ValueTask< TResult >.FromCanceled(), System.Threading.Tasks.ValueTask< TResult >.IsCompletedSuccessfully, System.IO.TextReader.ReadBlockAsyncInternal(), and System.IO.StreamReader.ThrowIfDisposed().