crates/potential_utf/src/uchar.rs - platform/external/rust/android-crates-io - Git at Google

 // This file is part of ICU4X. For terms of use, please see the file
 // called LICENSE at the top level of the ICU4X source tree
 // (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

 use core::cmp::Ordering;
 use core::fmt;

 /// A 24-bit numeric data type that is expected to be a Unicode scalar value, but is not
 /// validated as such.
 ///
 /// Use this type instead of `char` when you want to deal with data that is expected to be valid
 /// Unicode scalar values, but you want control over when or if you validate that assumption.
 ///
 /// # Examples
 ///
 /// ```
 /// use potential_utf::PotentialCodePoint;
 ///
 /// assert_eq!(PotentialCodePoint::from_u24(0x68).try_to_char(), Ok('h'));
 /// assert_eq!(PotentialCodePoint::from_char('i').try_to_char(), Ok('i'));
 /// assert_eq!(
 ///     PotentialCodePoint::from_u24(0x1F44B).try_to_char(),
 ///     Ok('👋')
 /// );
 ///
 /// assert!(PotentialCodePoint::from_u24(0xDE01).try_to_char().is_err());
 /// assert_eq!(
 ///     PotentialCodePoint::from_u24(0xDE01).to_char_lossy(),
 ///     char::REPLACEMENT_CHARACTER
 /// );
 /// ```
 #[repr(transparent)]
 #[allow(clippy::exhaustive_structs)] // transparent newtype
 #[derive(PartialEq, Eq, Clone, Copy, Hash)]
 pub struct PotentialCodePoint([u8; 3]);

 impl PotentialCodePoint {
     /// Create a [`PotentialCodePoint`] from a `char`.
     ///
     /// # Examples
     ///
     /// ```
     /// use potential_utf::PotentialCodePoint;
     ///
     /// let a = PotentialCodePoint::from_char('a');
     /// assert_eq!(a.try_to_char().unwrap(), 'a');
     /// ```
     #[inline]
     pub const fn from_char(c: char) -> Self {
         let [u0, u1, u2, _u3] = (c as u32).to_le_bytes();
         Self([u0, u1, u2])
     }

     /// Create [`PotentialCodePoint`] from a u32 value, ignoring the most significant 8 bits.
     #[inline]
     pub const fn from_u24(c: u32) -> Self {
         let [u0, u1, u2, _u3] = c.to_le_bytes();
         Self([u0, u1, u2])
     }

     /// Attempt to convert a [`PotentialCodePoint`] to a `char`.
     ///
     /// # Examples
     ///
     /// ```
     /// use potential_utf::PotentialCodePoint;
     /// use zerovec::ule::AsULE;
     ///
     /// let a = PotentialCodePoint::from_char('a');
     /// assert_eq!(a.try_to_char(), Ok('a'));
     ///
     /// let b = PotentialCodePoint::from_unaligned([0xFF, 0xFF, 0xFF].into());
     /// assert!(matches!(b.try_to_char(), Err(_)));
     /// ```
     #[inline]
     pub fn try_to_char(self) -> Result<char, core::char::CharTryFromError> {
         char::try_from(u32::from(self))
     }

     /// Convert a [`PotentialCodePoint`] to a `char', returning [`char::REPLACEMENT_CHARACTER`]
     /// if the `PotentialCodePoint` does not represent a valid Unicode scalar value.
     ///
     /// # Examples
     ///
     /// ```
     /// use potential_utf::PotentialCodePoint;
     /// use zerovec::ule::AsULE;
     ///
     /// let a = PotentialCodePoint::from_unaligned([0xFF, 0xFF, 0xFF].into());
     /// assert_eq!(a.to_char_lossy(), char::REPLACEMENT_CHARACTER);
     /// ```
     #[inline]
     pub fn to_char_lossy(self) -> char {
         self.try_to_char().unwrap_or(char::REPLACEMENT_CHARACTER)
     }

     /// Convert a [`PotentialCodePoint`] to a `char` without checking that it is
     /// a valid Unicode scalar value.
     ///
     /// # Safety
     ///
     /// The `PotentialCodePoint` must be a valid Unicode scalar value in little-endian order.
     ///
     /// # Examples
     ///
     /// ```
     /// use potential_utf::PotentialCodePoint;
     ///
     /// let a = PotentialCodePoint::from_char('a');
     /// assert_eq!(unsafe { a.to_char_unchecked() }, 'a');
     /// ```
     #[inline]
     pub unsafe fn to_char_unchecked(self) -> char {
         char::from_u32_unchecked(u32::from(self))
     }

     /// For converting to the ULE type in a const context
     ///
     /// Can be removed once const traits are a thing
     #[inline]
     #[cfg(feature = "zerovec")]
     pub const fn to_unaligned(self) -> zerovec::ule::RawBytesULE<3> {
         zerovec::ule::RawBytesULE(self.0)
     }
 }

 /// This impl requires enabling the optional `zerovec` Cargo feature
 #[cfg(feature = "zerovec")]
 impl zerovec::ule::AsULE for PotentialCodePoint {
     type ULE = zerovec::ule::RawBytesULE<3>;

     #[inline]
     fn to_unaligned(self) -> Self::ULE {
         zerovec::ule::RawBytesULE(self.0)
     }

     #[inline]
     fn from_unaligned(unaligned: Self::ULE) -> Self {
         Self(unaligned.0)
     }
 }

 // Safety: PotentialCodePoint is always the little-endian representation of a char,
 // which corresponds to its AsULE::ULE type
 /// This impl requires enabling the optional `zerovec` Cargo feature
 #[cfg(feature = "zerovec")]
 unsafe impl zerovec::ule::EqULE for PotentialCodePoint {}

 impl fmt::Debug for PotentialCodePoint {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         // Debug as a char if possible
         match self.try_to_char() {
             Ok(c) => fmt::Debug::fmt(&c, f),
             Err(_) => fmt::Debug::fmt(&self.0, f),
         }
     }
 }

 impl PartialOrd for PotentialCodePoint {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
         Some(self.cmp(other))
     }
 }

 impl PartialEq<char> for PotentialCodePoint {
     fn eq(&self, other: &char) -> bool {
         self.eq(&Self::from_char(*other))
     }
 }

 impl PartialOrd<char> for PotentialCodePoint {
     fn partial_cmp(&self, other: &char) -> Option<Ordering> {
         self.partial_cmp(&Self::from_char(*other))
     }
 }

 impl PartialEq<PotentialCodePoint> for char {
     fn eq(&self, other: &PotentialCodePoint) -> bool {
         PotentialCodePoint::from_char(*self).eq(other)
     }
 }

 impl PartialOrd<PotentialCodePoint> for char {
     fn partial_cmp(&self, other: &PotentialCodePoint) -> Option<Ordering> {
         PotentialCodePoint::from_char(*self).partial_cmp(other)
     }
 }

 impl Ord for PotentialCodePoint {
     // custom implementation, as derived Ord would compare lexicographically
     fn cmp(&self, other: &Self) -> Ordering {
         let a = u32::from(*self);
         let b = u32::from(*other);
         a.cmp(&b)
     }
 }

 impl From<PotentialCodePoint> for u32 {
     fn from(x: PotentialCodePoint) -> Self {
         let [a0, a1, a2] = x.0;
         u32::from_le_bytes([a0, a1, a2, 0])
     }
 }

 impl TryFrom<u32> for PotentialCodePoint {
     type Error = ();
     fn try_from(x: u32) -> Result<Self, ()> {
         let [u0, u1, u2, u3] = x.to_le_bytes();
         if u3 != 0 {
             return Err(());
         }
         Ok(Self([u0, u1, u2]))
     }
 }

 impl From<char> for PotentialCodePoint {
     #[inline]
     fn from(value: char) -> Self {
         Self::from_char(value)
     }
 }

 impl TryFrom<PotentialCodePoint> for char {
     type Error = core::char::CharTryFromError;

     #[inline]
     fn try_from(value: PotentialCodePoint) -> Result<char, Self::Error> {
         value.try_to_char()
     }
 }

 /// This impl requires enabling the optional `serde` Cargo feature
 #[cfg(feature = "serde")]
 impl serde::Serialize for PotentialCodePoint {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: serde::Serializer,
     {
         use serde::ser::Error;
         let c = self
             .try_to_char()
             .map_err(|_| S::Error::custom("invalid Unicode scalar value in PotentialCodePoint"))?;
         if serializer.is_human_readable() {
             serializer.serialize_char(c)
         } else {
             self.0.serialize(serializer)
         }
     }
 }

 /// This impl requires enabling the optional `serde` Cargo feature
 #[cfg(feature = "serde")]
 impl<'de> serde::Deserialize<'de> for PotentialCodePoint {
     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
     where
         D: serde::Deserializer<'de>,
     {
         if deserializer.is_human_readable() {
             let c = <char>::deserialize(deserializer)?;
             Ok(PotentialCodePoint::from_char(c))
         } else {
             let bytes = <[u8; 3]>::deserialize(deserializer)?;
             Ok(PotentialCodePoint(bytes))
         }
     }
 }

 /// This impl requires enabling the optional `databake` Cargo feature
 #[cfg(feature = "databake")]
 impl databake::Bake for PotentialCodePoint {
     fn bake(&self, env: &databake::CrateEnv) -> databake::TokenStream {
         match self.try_to_char() {
             Ok(ch) => {
                 env.insert("potential_utf");
                 let ch = ch.bake(env);
                 databake::quote! {
                     potential_utf::PotentialCodePoint::from_char(#ch)
                 }
             }
             Err(_) => {
                 env.insert("potential_utf");
                 let u24 = u32::from_le_bytes([self.0[0], self.0[1], self.0[2], 0]);
                 databake::quote! {
                     potential_utf::PotentialCodePoint::from_u24(#u24)
                 }
             }
         }
     }
 }

 #[cfg(test)]
 mod test {
     use super::*;
     use zerovec::ZeroVec;

     #[test]
     fn test_serde_fail() {
         let uc = PotentialCodePoint([0xFF, 0xFF, 0xFF]);
         serde_json::to_string(&uc).expect_err("serialize invalid char bytes");
         bincode::serialize(&uc).expect_err("serialize invalid char bytes");
     }

     #[test]
     fn test_serde_json() {
         let c = '🙃';
         let uc = PotentialCodePoint::from_char(c);
         let json_ser = serde_json::to_string(&uc).unwrap();

         assert_eq!(json_ser, r#""🙃""#);

         let json_de: PotentialCodePoint = serde_json::from_str(&json_ser).unwrap();

         assert_eq!(uc, json_de);
     }

     #[test]
     fn test_serde_bincode() {
         let c = '🙃';
         let uc = PotentialCodePoint::from_char(c);
         let bytes_ser = bincode::serialize(&uc).unwrap();

         assert_eq!(bytes_ser, [0x43, 0xF6, 0x01]);

         let bytes_de: PotentialCodePoint = bincode::deserialize(&bytes_ser).unwrap();

         assert_eq!(uc, bytes_de);
     }

     #[test]
     fn test_representation() {
         let chars = ['w', 'ω', '文', '𑄃', '🙃'];

         // backed by [PotentialCodePoint]
         let uvchars: Vec<_> = chars
             .iter()
             .copied()
             .map(PotentialCodePoint::from_char)
             .collect();
         // backed by [RawBytesULE<3>]
         let zvec: ZeroVec<_> = uvchars.clone().into_iter().collect();

         let ule_bytes = zvec.as_bytes();
         let uvbytes;
         unsafe {
             let ptr = &uvchars[..] as *const _ as *const u8;
             uvbytes = core::slice::from_raw_parts(ptr, ule_bytes.len());
         }

         // PotentialCodePoint is defined as little-endian, so this must be true on all platforms
         // also asserts that to_unaligned/from_unaligned are no-ops
         assert_eq!(uvbytes, ule_bytes);

         assert_eq!(
             &[119, 0, 0, 201, 3, 0, 135, 101, 0, 3, 17, 1, 67, 246, 1],
             ule_bytes
         );
     }

     #[test]
     fn test_char_bake() {
         databake::test_bake!(
             PotentialCodePoint,
             const,
             crate::PotentialCodePoint::from_char('b'),
             potential_utf
         );
         // surrogate code point
         databake::test_bake!(
             PotentialCodePoint,
             const,
             crate::PotentialCodePoint::from_u24(55296u32),
             potential_utf
         );
     }
 }
	// This file is part of ICU4X. For terms of use, please see the file
	// called LICENSE at the top level of the ICU4X source tree
	// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

	use core::cmp::Ordering;
	use core::fmt;

	/// A 24-bit numeric data type that is expected to be a Unicode scalar value, but is not
	/// validated as such.
	///
	/// Use this type instead of `char` when you want to deal with data that is expected to be valid
	/// Unicode scalar values, but you want control over when or if you validate that assumption.
	///
	/// # Examples
	///
	/// ```
	/// use potential_utf::PotentialCodePoint;
	///
	/// assert_eq!(PotentialCodePoint::from_u24(0x68).try_to_char(), Ok('h'));
	/// assert_eq!(PotentialCodePoint::from_char('i').try_to_char(), Ok('i'));
	/// assert_eq!(
	/// PotentialCodePoint::from_u24(0x1F44B).try_to_char(),
	/// Ok('👋')
	/// );
	///
	/// assert!(PotentialCodePoint::from_u24(0xDE01).try_to_char().is_err());
	/// assert_eq!(
	/// PotentialCodePoint::from_u24(0xDE01).to_char_lossy(),
	/// char::REPLACEMENT_CHARACTER
	/// );
	/// ```
	#[repr(transparent)]
	#[allow(clippy::exhaustive_structs)] // transparent newtype
	#[derive(PartialEq, Eq, Clone, Copy, Hash)]
	pub struct PotentialCodePoint([u8; 3]);

	impl PotentialCodePoint {
	/// Create a [`PotentialCodePoint`] from a `char`.
	///
	/// # Examples
	///
	/// ```
	/// use potential_utf::PotentialCodePoint;
	///
	/// let a = PotentialCodePoint::from_char('a');
	/// assert_eq!(a.try_to_char().unwrap(), 'a');
	/// ```
	#[inline]
	pub const fn from_char(c: char) -> Self {
	let [u0, u1, u2, _u3] = (c as u32).to_le_bytes();
	Self([u0, u1, u2])
	}

	/// Create [`PotentialCodePoint`] from a u32 value, ignoring the most significant 8 bits.
	#[inline]
	pub const fn from_u24(c: u32) -> Self {
	let [u0, u1, u2, _u3] = c.to_le_bytes();
	Self([u0, u1, u2])
	}

	/// Attempt to convert a [`PotentialCodePoint`] to a `char`.
	///
	/// # Examples
	///
	/// ```
	/// use potential_utf::PotentialCodePoint;
	/// use zerovec::ule::AsULE;
	///
	/// let a = PotentialCodePoint::from_char('a');
	/// assert_eq!(a.try_to_char(), Ok('a'));
	///
	/// let b = PotentialCodePoint::from_unaligned([0xFF, 0xFF, 0xFF].into());
	/// assert!(matches!(b.try_to_char(), Err(_)));
	/// ```
	#[inline]
	pub fn try_to_char(self) -> Result<char, core::char::CharTryFromError> {
	char::try_from(u32::from(self))
	}

	/// Convert a [`PotentialCodePoint`] to a `char', returning [`char::REPLACEMENT_CHARACTER`]
	/// if the `PotentialCodePoint` does not represent a valid Unicode scalar value.
	///
	/// # Examples
	///
	/// ```
	/// use potential_utf::PotentialCodePoint;
	/// use zerovec::ule::AsULE;
	///
	/// let a = PotentialCodePoint::from_unaligned([0xFF, 0xFF, 0xFF].into());
	/// assert_eq!(a.to_char_lossy(), char::REPLACEMENT_CHARACTER);
	/// ```
	#[inline]
	pub fn to_char_lossy(self) -> char {
	self.try_to_char().unwrap_or(char::REPLACEMENT_CHARACTER)
	}

	/// Convert a [`PotentialCodePoint`] to a `char` without checking that it is
	/// a valid Unicode scalar value.
	///
	/// # Safety
	///
	/// The `PotentialCodePoint` must be a valid Unicode scalar value in little-endian order.
	///
	/// # Examples
	///
	/// ```
	/// use potential_utf::PotentialCodePoint;
	///
	/// let a = PotentialCodePoint::from_char('a');
	/// assert_eq!(unsafe { a.to_char_unchecked() }, 'a');
	/// ```
	#[inline]
	pub unsafe fn to_char_unchecked(self) -> char {
	char::from_u32_unchecked(u32::from(self))
	}

	/// For converting to the ULE type in a const context
	///
	/// Can be removed once const traits are a thing
	#[inline]
	#[cfg(feature = "zerovec")]
	pub const fn to_unaligned(self) -> zerovec::ule::RawBytesULE<3> {
	zerovec::ule::RawBytesULE(self.0)
	}
	}

	/// This impl requires enabling the optional `zerovec` Cargo feature
	#[cfg(feature = "zerovec")]
	impl zerovec::ule::AsULE for PotentialCodePoint {
	type ULE = zerovec::ule::RawBytesULE<3>;

	#[inline]
	fn to_unaligned(self) -> Self::ULE {
	zerovec::ule::RawBytesULE(self.0)
	}

	#[inline]
	fn from_unaligned(unaligned: Self::ULE) -> Self {
	Self(unaligned.0)
	}
	}

	// Safety: PotentialCodePoint is always the little-endian representation of a char,
	// which corresponds to its AsULE::ULE type
	/// This impl requires enabling the optional `zerovec` Cargo feature
	#[cfg(feature = "zerovec")]
	unsafe impl zerovec::ule::EqULE for PotentialCodePoint {}

	impl fmt::Debug for PotentialCodePoint {
	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
	// Debug as a char if possible
	match self.try_to_char() {
	Ok(c) => fmt::Debug::fmt(&c, f),
	Err(_) => fmt::Debug::fmt(&self.0, f),
	}
	}
	}

	impl PartialOrd for PotentialCodePoint {
	fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
	Some(self.cmp(other))
	}
	}

	impl PartialEq<char> for PotentialCodePoint {
	fn eq(&self, other: &char) -> bool {
	self.eq(&Self::from_char(*other))
	}
	}

	impl PartialOrd<char> for PotentialCodePoint {
	fn partial_cmp(&self, other: &char) -> Option<Ordering> {
	self.partial_cmp(&Self::from_char(*other))
	}
	}

	impl PartialEq<PotentialCodePoint> for char {
	fn eq(&self, other: &PotentialCodePoint) -> bool {
	PotentialCodePoint::from_char(*self).eq(other)
	}
	}

	impl PartialOrd<PotentialCodePoint> for char {
	fn partial_cmp(&self, other: &PotentialCodePoint) -> Option<Ordering> {
	PotentialCodePoint::from_char(*self).partial_cmp(other)
	}
	}

	impl Ord for PotentialCodePoint {
	// custom implementation, as derived Ord would compare lexicographically
	fn cmp(&self, other: &Self) -> Ordering {
	let a = u32::from(*self);
	let b = u32::from(*other);
	a.cmp(&b)
	}
	}

	impl From<PotentialCodePoint> for u32 {
	fn from(x: PotentialCodePoint) -> Self {
	let [a0, a1, a2] = x.0;
	u32::from_le_bytes([a0, a1, a2, 0])
	}
	}

	impl TryFrom<u32> for PotentialCodePoint {
	type Error = ();
	fn try_from(x: u32) -> Result<Self, ()> {
	let [u0, u1, u2, u3] = x.to_le_bytes();
	if u3 != 0 {
	return Err(());
	}
	Ok(Self([u0, u1, u2]))
	}
	}

	impl From<char> for PotentialCodePoint {
	#[inline]
	fn from(value: char) -> Self {
	Self::from_char(value)
	}
	}

	impl TryFrom<PotentialCodePoint> for char {
	type Error = core::char::CharTryFromError;

	#[inline]
	fn try_from(value: PotentialCodePoint) -> Result<char, Self::Error> {
	value.try_to_char()
	}
	}

	/// This impl requires enabling the optional `serde` Cargo feature
	#[cfg(feature = "serde")]
	impl serde::Serialize for PotentialCodePoint {
	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
	where
	S: serde::Serializer,
	{
	use serde::ser::Error;
	let c = self
	.try_to_char()
	.map_err(\|_\| S::Error::custom("invalid Unicode scalar value in PotentialCodePoint"))?;
	if serializer.is_human_readable() {
	serializer.serialize_char(c)
	} else {
	self.0.serialize(serializer)
	}
	}
	}

	/// This impl requires enabling the optional `serde` Cargo feature
	#[cfg(feature = "serde")]
	impl<'de> serde::Deserialize<'de> for PotentialCodePoint {
	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
	where
	D: serde::Deserializer<'de>,
	{
	if deserializer.is_human_readable() {
	let c = <char>::deserialize(deserializer)?;
	Ok(PotentialCodePoint::from_char(c))
	} else {
	let bytes = <[u8; 3]>::deserialize(deserializer)?;
	Ok(PotentialCodePoint(bytes))
	}
	}
	}

	/// This impl requires enabling the optional `databake` Cargo feature
	#[cfg(feature = "databake")]
	impl databake::Bake for PotentialCodePoint {
	fn bake(&self, env: &databake::CrateEnv) -> databake::TokenStream {
	match self.try_to_char() {
	Ok(ch) => {
	env.insert("potential_utf");
	let ch = ch.bake(env);
	databake::quote! {
	potential_utf::PotentialCodePoint::from_char(#ch)
	}
	}
	Err(_) => {
	env.insert("potential_utf");
	let u24 = u32::from_le_bytes([self.0[0], self.0[1], self.0[2], 0]);
	databake::quote! {
	potential_utf::PotentialCodePoint::from_u24(#u24)
	}
	}
	}
	}
	}

	#[cfg(test)]
	mod test {
	use super::*;
	use zerovec::ZeroVec;

	#[test]
	fn test_serde_fail() {
	let uc = PotentialCodePoint([0xFF, 0xFF, 0xFF]);
	serde_json::to_string(&uc).expect_err("serialize invalid char bytes");
	bincode::serialize(&uc).expect_err("serialize invalid char bytes");
	}

	#[test]
	fn test_serde_json() {
	let c = '🙃';
	let uc = PotentialCodePoint::from_char(c);
	let json_ser = serde_json::to_string(&uc).unwrap();

	assert_eq!(json_ser, r#""🙃""#);

	let json_de: PotentialCodePoint = serde_json::from_str(&json_ser).unwrap();

	assert_eq!(uc, json_de);
	}

	#[test]
	fn test_serde_bincode() {
	let c = '🙃';
	let uc = PotentialCodePoint::from_char(c);
	let bytes_ser = bincode::serialize(&uc).unwrap();

	assert_eq!(bytes_ser, [0x43, 0xF6, 0x01]);

	let bytes_de: PotentialCodePoint = bincode::deserialize(&bytes_ser).unwrap();

	assert_eq!(uc, bytes_de);
	}

	#[test]
	fn test_representation() {
	let chars = ['w', 'ω', '文', '𑄃', '🙃'];

	// backed by [PotentialCodePoint]
	let uvchars: Vec<_> = chars
	.iter()
	.copied()
	.map(PotentialCodePoint::from_char)
	.collect();
	// backed by [RawBytesULE<3>]
	let zvec: ZeroVec<_> = uvchars.clone().into_iter().collect();

	let ule_bytes = zvec.as_bytes();
	let uvbytes;
	unsafe {
	let ptr = &uvchars[..] as const _ as const u8;
	uvbytes = core::slice::from_raw_parts(ptr, ule_bytes.len());
	}

	// PotentialCodePoint is defined as little-endian, so this must be true on all platforms
	// also asserts that to_unaligned/from_unaligned are no-ops
	assert_eq!(uvbytes, ule_bytes);

	assert_eq!(
	&[119, 0, 0, 201, 3, 0, 135, 101, 0, 3, 17, 1, 67, 246, 1],
	ule_bytes
	);
	}

	#[test]
	fn test_char_bake() {
	databake::test_bake!(
	PotentialCodePoint,
	const,
	crate::PotentialCodePoint::from_char('b'),
	potential_utf
	);
	// surrogate code point
	databake::test_bake!(
	PotentialCodePoint,
	const,
	crate::PotentialCodePoint::from_u24(55296u32),
	potential_utf
	);
	}
	}