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GetPinnableReference on String.cs #23428

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Mar 28, 2019
Merged

GetPinnableReference on String.cs #23428

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cd183b6
GetPinnableReference on String.cs
Mar 25, 2019
471232c
Add attributes for debugger and performance
Mar 25, 2019
aeea302
Update based on feedback
Mar 25, 2019
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7 changes: 7 additions & 0 deletions src/System.Private.CoreLib/shared/System/String.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -472,6 +472,13 @@ public static bool IsNullOrWhiteSpace(string value)
return true;
}

/// <summary>
/// Returns a reference to the first element of the String. If the string is null, an access will throw a NullReferenceException.
/// </summary>
[System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
[NonVersionable]
public ref readonly char GetPinnableReference() => ref _firstChar;

internal ref char GetRawStringData() => ref _firstChar;

// Helper for encodings so they can talk to our buffer directly
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