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[string] Add less bad SPI for Foundation #15442

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Merged
merged 1 commit into from
Mar 23, 2018
Merged

[string] Add less bad SPI for Foundation #15442

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33 changes: 33 additions & 0 deletions stdlib/public/core/StringGuts.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -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)
}
}