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[string] Add less bad SPI for Foundation

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Michael Ilseman
2018-03-22 20:48:51 -07:00
parent 99051b5723
commit 020d94ade0
1 changed files with 33 additions and 0 deletions
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33
stdlib/public/core/StringGuts.swift
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@@ -1413,3 +1413,36 @@ extension _StringGuts {
return UnsafeMutablePointer(mutating: _unmanagedUTF16View.start)
}
}
extension _StringGuts {
@available(*, deprecated)
public // SPI(Foundation)
var _isContiguousASCII: Bool {
return _object.isContiguousASCII
}
@available(*, deprecated)
public // SPI(Foundation)
var _isContiguousUTF16: Bool {
return _object.isContiguousUTF16
}
@available(*, deprecated)
public // SPI(Foundation)
func _withUnsafeUTF8CodeUnitsIfAvailable<Result>(
_ f: (UnsafeBufferPointer<UInt8>) throws -> Result
) rethrows -> Result? {
guard _object.isContiguousASCII else { return nil }
return try f(_unmanagedASCIIView.buffer)
}
@available(*, deprecated)
public // SPI(Foundation)
func _withUnsafeUTF16CodeUnitsIfAvailable<Result>(
_ f: (UnsafeBufferPointer<UInt16>) throws -> Result
) rethrows -> Result? {
guard _object.isContiguousUTF16 else { return nil }
return try f(_unmanagedUTF16View.buffer)
}
}