Struct fontdb::ID

pub struct ID(_);

A unique per database face ID.

We're using u32 internally, which is auto-incremented for each face. A face removal doesn't decrement the counter.

Since Database is not global/unique, we cannot guarantee that a specific ID is actually from the same db instance. This is up to the caller.

ID overflow will cause a panic, but it's highly unlikely that someone would load more than 4 billion font faces.

Trait Implementations

impl Clone for ID

pub fn clone(&self) -> ID

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ID

impl Debug for ID

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

Formats the value using the given formatter.

impl Eq for ID

impl Hash for ID

pub fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for ID

pub fn cmp(&self, other: &ID) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<ID> for ID

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<ID> for ID

pub fn partial_cmp(&self, other: &ID) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

pub fn lt(&self, other: &ID) -> bool

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &ID) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

pub fn gt(&self, other: &ID) -> bool

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &ID) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for ID

impl StructuralPartialEq for ID