Jul 13, 2021 · May 26, 2021 · Jun 18, 2021 · Jul 10, 2021 · Jul 12, 2021 · Jul 13, 2021
diff --git a/src/libraries/System.Memory/ref/System.Memory.cs b/src/libraries/System.Memory/ref/System.Memory.cs
        public static System.ReadOnlySpan<T> Trim<T>(this System.ReadOnlySpan<T> span, T trimElement) where T : System.IEquatable<T> { throw null; }
        public static System.Span<T> Trim<T>(this System.Span<T> span, System.ReadOnlySpan<T> trimElements) where T : System.IEquatable<T> { throw null; }
        public static System.Span<T> Trim<T>(this System.Span<T> span, T trimElement) where T : System.IEquatable<T> { throw null; }
        public static bool TryWrite(this System.Span<char> destination, [System.Runtime.CompilerServices.InterpolatedStringHandlerArgumentAttribute("destination")] ref System.MemoryExtensions.TryWriteInterpolatedStringHandler handler, out int charsWritten) { throw null; }
        public static bool TryWrite(this System.Span<char> destination, IFormatProvider? provider, [System.Runtime.CompilerServices.InterpolatedStringHandlerArgumentAttribute("destination", "provider")] ref System.MemoryExtensions.TryWriteInterpolatedStringHandler handler, out int charsWritten) { throw null; }
        [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
        [System.Runtime.CompilerServices.InterpolatedStringHandlerAttribute]
        public ref struct TryWriteInterpolatedStringHandler
        {
            private readonly object _dummy;
            private readonly int _dummyPrimitive;
            public TryWriteInterpolatedStringHandler(int literalLength, int formattedCount, System.Span<char> destination, out bool success) { throw null; }
            public TryWriteInterpolatedStringHandler(int literalLength, int formattedCount, System.Span<char> destination, IFormatProvider? provider, out bool success) { throw null; }
            public bool AppendLiteral(string value) { throw null; }
            public bool AppendFormatted(System.ReadOnlySpan<char> value) { throw null; }
            public bool AppendFormatted(System.ReadOnlySpan<char> value, int alignment = 0, string? format = null) { throw null; }
            public bool AppendFormatted<T>(T value) { throw null; }
            public bool AppendFormatted<T>(T value, string? format) { throw null; }
            public bool AppendFormatted<T>(T value, int alignment) { throw null; }
            public bool AppendFormatted<T>(T value, int alignment, string? format) { throw null; }
            public bool AppendFormatted(object? value, int alignment = 0, string? format = null) { throw null; }
            public bool AppendFormatted(string? value) { throw null; }
            public bool AppendFormatted(string? value, int alignment = 0, string? format = null) { throw null; }
        }
    }
    public readonly partial struct SequencePosition : System.IEquatable<System.SequencePosition>
    {
diff --git a/src/libraries/System.Memory/tests/Span/TryWrite.cs b/src/libraries/System.Memory/tests/Span/TryWrite.cs
diff --git a/src/libraries/System.Memory/tests/System.Memory.Tests.csproj b/src/libraries/System.Memory/tests/System.Memory.Tests.csproj
    <Compile Include="Span\StartsWith.T.cs" />
    <Compile Include="Span\ToArray.cs" />
    <Compile Include="Span\ToString.cs" />
    <Compile Include="Span\TryWrite.cs" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="ReadOnlyBuffer\ReadOnlySequenceTests.Common.char.cs" />
diff --git a/src/libraries/System.Private.CoreLib/src/System/MemoryExtensions.cs b/src/libraries/System.Private.CoreLib/src/System/MemoryExtensions.cs
diff --git a/src/libraries/System.Private.CoreLib/src/System/String.cs b/src/libraries/System.Private.CoreLib/src/System/String.cs
            return result;
        }

        /// <summary>Creates a new string by using the specified provider to control the formatting of the specified interpolated string.</summary>
        /// <param name="provider">An object that supplies culture-specific formatting information.</param>
        /// <param name="handler">The interpolated string.</param>
        /// <returns>The string that results for formatting the interpolated string using the specified format provider.</returns>
        public static string Create(IFormatProvider? provider, [InterpolatedStringHandlerArgument("provider")] ref DefaultInterpolatedStringHandler handler) =>
            handler.ToStringAndClear();

        /// <summary>Creates a new string by using the specified provider to control the formatting of the specified interpolated string.</summary>
        /// <param name="provider">An object that supplies culture-specific formatting information.</param>
        /// <param name="initialBuffer">The initial buffer that may be used as temporary space as part of the formatting operation. The contents of this buffer may be overwritten.</param>
        /// <param name="handler">The interpolated string.</param>
        /// <returns>The string that results for formatting the interpolated string using the specified format provider.</returns>
        public static string Create(IFormatProvider? provider, Span<char> initialBuffer, [InterpolatedStringHandlerArgument("provider", "initialBuffer")] ref DefaultInterpolatedStringHandler handler) =>
            handler.ToStringAndClear();

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static implicit operator ReadOnlySpan<char>(string? value) =>
            value != null ? new ReadOnlySpan<char>(ref value.GetRawStringData(), value.Length) : default;
Original file line number	Diff line number	Diff line change
Expand Up		@@ -143,6 +143,27 @@ public static void Sort<TKey, TValue, TComparer>(this System.Span<TKey> keys, Sy
		public static System.ReadOnlySpan<T> Trim<T>(this System.ReadOnlySpan<T> span, T trimElement) where T : System.IEquatable<T> { throw null; }
		public static System.Span<T> Trim<T>(this System.Span<T> span, System.ReadOnlySpan<T> trimElements) where T : System.IEquatable<T> { throw null; }
		public static System.Span<T> Trim<T>(this System.Span<T> span, T trimElement) where T : System.IEquatable<T> { throw null; }
		public static bool TryWrite(this System.Span<char> destination, [System.Runtime.CompilerServices.InterpolatedStringHandlerArgumentAttribute("destination")] ref System.MemoryExtensions.TryWriteInterpolatedStringHandler handler, out int charsWritten) { throw null; }
		public static bool TryWrite(this System.Span<char> destination, IFormatProvider? provider, [System.Runtime.CompilerServices.InterpolatedStringHandlerArgumentAttribute("destination", "provider")] ref System.MemoryExtensions.TryWriteInterpolatedStringHandler handler, out int charsWritten) { throw null; }
		[System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
		[System.Runtime.CompilerServices.InterpolatedStringHandlerAttribute]
		public ref struct TryWriteInterpolatedStringHandler
		{
		private readonly object _dummy;
		private readonly int _dummyPrimitive;
		public TryWriteInterpolatedStringHandler(int literalLength, int formattedCount, System.Span<char> destination, out bool success) { throw null; }
		public TryWriteInterpolatedStringHandler(int literalLength, int formattedCount, System.Span<char> destination, IFormatProvider? provider, out bool success) { throw null; }
		public bool AppendLiteral(string value) { throw null; }
		public bool AppendFormatted(System.ReadOnlySpan<char> value) { throw null; }
		public bool AppendFormatted(System.ReadOnlySpan<char> value, int alignment = 0, string? format = null) { throw null; }
		public bool AppendFormatted<T>(T value) { throw null; }
		public bool AppendFormatted<T>(T value, string? format) { throw null; }
		public bool AppendFormatted<T>(T value, int alignment) { throw null; }
		public bool AppendFormatted<T>(T value, int alignment, string? format) { throw null; }
		public bool AppendFormatted(object? value, int alignment = 0, string? format = null) { throw null; }
		public bool AppendFormatted(string? value) { throw null; }
		public bool AppendFormatted(string? value, int alignment = 0, string? format = null) { throw null; }
		}
		}
		public readonly partial struct SequencePosition : System.IEquatable<System.SequencePosition>
		{
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -112,6 +112,7 @@
		<Compile Include="Span\StartsWith.T.cs" />
		<Compile Include="Span\ToArray.cs" />
		<Compile Include="Span\ToString.cs" />
		<Compile Include="Span\TryWrite.cs" />
		</ItemGroup>
		<ItemGroup>
		<Compile Include="ReadOnlyBuffer\ReadOnlySequenceTests.Common.char.cs" />
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -391,6 +391,21 @@ public static string Create<TState>(int length, TState state, SpanAction<char, T
		return result;
		}

		/// <summary>Creates a new string by using the specified provider to control the formatting of the specified interpolated string.</summary>
		/// <param name="provider">An object that supplies culture-specific formatting information.</param>
		/// <param name="handler">The interpolated string.</param>
		/// <returns>The string that results for formatting the interpolated string using the specified format provider.</returns>
		public static string Create(IFormatProvider? provider, [InterpolatedStringHandlerArgument("provider")] ref DefaultInterpolatedStringHandler handler) =>
		handler.ToStringAndClear();

		/// <summary>Creates a new string by using the specified provider to control the formatting of the specified interpolated string.</summary>
		/// <param name="provider">An object that supplies culture-specific formatting information.</param>
		/// <param name="initialBuffer">The initial buffer that may be used as temporary space as part of the formatting operation. The contents of this buffer may be overwritten.</param>
		/// <param name="handler">The interpolated string.</param>
		/// <returns>The string that results for formatting the interpolated string using the specified format provider.</returns>
		public static string Create(IFormatProvider? provider, Span<char> initialBuffer, [InterpolatedStringHandlerArgument("provider", "initialBuffer")] ref DefaultInterpolatedStringHandler handler) =>
		handler.ToStringAndClear();

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public static implicit operator ReadOnlySpan<char>(string? value) =>
		value != null ? new ReadOnlySpan<char>(ref value.GetRawStringData(), value.Length) : default;
Expand Down