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CodePoint

Enum CodePoint 

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pub enum CodePoint {
    Unicode(char),
    UnpairedSurrogate(u16),
}
Expand description

Represents a Unicode codepoint within a crate::JsString, which could be a valid ‘Unicode scalar value’, or an unpaired surrogate.

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Unicode(char)

A valid Unicode scalar value.

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UnpairedSurrogate(u16)

An unpaired surrogate.

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impl CodePoint

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pub const fn code_unit_count(self) -> usize

Get the number of UTF-16 code units needed to encode this code point.

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pub fn as_u32(self) -> u32

Convert the code point to its u32 representation.

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pub const fn as_char(self) -> Option<char>

If the code point represents a valid ‘Unicode scalar value’, returns its char representation, otherwise returns None on unpaired surrogates.

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pub fn encode_utf16(self, dst: &mut [u16]) -> &mut [u16]

Encodes this code point as UTF-16 into the provided u16 buffer, and then returns the subslice of the buffer that contains the encoded character.

§Panics

Panics if the buffer is not large enough. A buffer of length 2 is large enough to encode any code point.

Trait Implementations§

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impl Clone for CodePoint

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fn clone(&self) -> CodePoint

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for CodePoint

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impl Debug for CodePoint

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for CodePoint

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for CodePoint

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impl From<char> for CodePoint

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fn from(value: char) -> Self

Converts to this type from the input type.
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impl From<u16> for CodePoint

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fn from(value: u16) -> Self

Converts to this type from the input type.
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impl PartialEq for CodePoint

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fn eq(&self, other: &CodePoint) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for CodePoint

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.