public string BuildFilenameWithStringCreate(DataContext dataContext)
{
var length = DateFormat.Length +
dataContext.Title.Length + 1 + // includes separator
dataContext.Key.Length +
Suffix.Length;
return(string.Create(length, dataContext, (span, state) =>
{
var position = 0;
state.EventDateUtc.TryFormat(span, out var bytesWritten, DateFormatSpan, CultureInfo.InvariantCulture);
position += bytesWritten;
MemoryExtensions.ToUpperInvariant(state.Title, span.Slice(position));
position += state.Title.Length;
span[position++] = Separator;
state.Key.AsSpan().CopyTo(span.Slice(position));
position += state.Key.Length;
SuffixSpan.CopyTo(span.Slice(position));
}));
public static IEnumerable <object[]> MemoryExtensionsToUpperLowerOverlapping()
{
// full overlap, overlap in the middle, overlap at start, overlap at the end
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLower(buffer, null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLower(buffer.Slice(1, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLower(buffer.Slice(0, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLower(buffer.Slice(2, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLower(buffer, buffer, null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLower(buffer, buffer.Slice(1, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLower(buffer, buffer.Slice(0, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLower(buffer, buffer.Slice(2, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLowerInvariant(buffer) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLowerInvariant(buffer.Slice(1, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLowerInvariant(buffer.Slice(0, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToLowerInvariant(buffer.Slice(2, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLowerInvariant(buffer, buffer) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLowerInvariant(buffer, buffer.Slice(1, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLowerInvariant(buffer, buffer.Slice(0, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToLowerInvariant(buffer, buffer.Slice(2, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpper(buffer, null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpper(buffer.Slice(1, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpper(buffer.Slice(0, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpper(buffer.Slice(2, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpper(buffer, buffer, null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpper(buffer, buffer.Slice(1, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpper(buffer, buffer.Slice(0, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpper(buffer, buffer.Slice(2, 1), null) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpperInvariant(buffer) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpperInvariant(buffer.Slice(1, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpperInvariant(buffer.Slice(0, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => ((ReadOnlySpan <char>)buffer).ToUpperInvariant(buffer.Slice(2, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpperInvariant(buffer, buffer) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpperInvariant(buffer, buffer.Slice(1, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpperInvariant(buffer, buffer.Slice(0, 1)) });
yield return(new TestHelpers.AssertThrowsAction <char>[] { (Span <char> buffer) => MemoryExtensions.ToUpperInvariant(buffer, buffer.Slice(2, 1)) });
}
