#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) // FIXME: These properties were introduced in ICU 57, but Ubuntu 16.04 comes // with ICU 55 so the values won't be correct there. Exclude them on // non-Darwin platforms for now; bundling ICU with the toolchain would resolve // this and other inconsistencies (https://bugs.swift.org/browse/SR-6076). /// A Boolean value indicating whether the scalar has an emoji /// presentation, whether or not it is the default. 略 @available(macOS 10.12.2, iOS 10.2, tvOS 10.1, watchOS 3.1.1, *) public var isEmoji: Bool { return _hasBinaryProperty(__swift_stdlib_UCHAR_EMOJI) }
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