Skip to main content

ByteClasses

Struct ByteClasses 

Source
pub struct ByteClasses { /* private fields */ }
Expand description

Dialect-owned byte-class data for the tokenizer hot loop.

Implementations§

Source§

impl ByteClasses

Source

pub const STANDARD: Self

Standard M1 byte classes: the ANSI baseline shared by every preset except PostgreSQL/MySQL (which layer the vertical tab as full whitespace) and SQLite/DuckDB (which layer their measured position-dependent vertical-tab rules — see SQLITE_BYTE_CLASSES / DUCKDB_BYTE_CLASSES).

Source

pub const fn byte_class(&self, byte: u8) -> u8

Return all classes for byte.

Source

pub const fn has_class(&self, byte: u8, mask: u8) -> bool

Return true if byte has any class in mask.

Source

pub const fn has_boundary_whitespace(&self) -> bool

Whether any byte carries CLASS_WHITESPACE_BOUNDARY — the tokenizer’s cheap gate for the interior-boundary guard (true only for the DuckDB preset).

Source

pub const fn with_class(self, byte: u8, mask: u8) -> Self

Return a copy with mask added to byte.

Trait Implementations§

Source§

impl Clone for ByteClasses

Source§

fn clone(&self) -> ByteClasses

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
Source§

impl Copy for ByteClasses

Source§

impl Debug for ByteClasses

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Eq for ByteClasses

Source§

impl PartialEq for ByteClasses

Source§

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

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

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

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for ByteClasses

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

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

Source§

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
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

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

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.