Struct abi_stable::std_types::utypeid::UTypeId

#[repr(C)]pub struct UTypeId { /* fields omitted */ }

An ffi-safe equivalent of std::any::TypeId that can compare types across dynamic libraries.

No UTypeId constructed in different dynamic libraries compare equal.

Example

use abi_stable::std_types::UTypeId;

assert_eq!(UTypeId::new::<()>(), UTypeId::new::<()>());
assert_eq!(UTypeId::new::<Box<String>>(), UTypeId::new::<Box<String>>());

assert_ne!(UTypeId::new::<()>(), UTypeId::new::<Vec<()>>());
assert_ne!(UTypeId::new::<Box<String>>(), UTypeId::new::<&str>());

Implementations

impl UTypeId

pub fn new<T>() -> Self where
    T: 'static, 

Constructs UTypeId from a type that satisfies the 'static bound.

Example

use abi_stable::std_types::UTypeId;
use std::collections::HashMap;

let id=UTypeId::new::< HashMap<String,String> >();

Trait Implementations

impl Clone for UTypeId

pub fn clone(&self) -> UTypeId

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for UTypeId

impl Debug for UTypeId

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

Formats the value using the given formatter.

impl Eq for UTypeId

impl GetStaticEquivalent_ for UTypeId

type StaticEquivalent = _static_UTypeId

impl Hash for UTypeId

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 UTypeId

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<UTypeId> for UTypeId

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

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

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

This method tests for !=.

impl PartialOrd<UTypeId> for UTypeId

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

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

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

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

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

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

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

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

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

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

impl Send for UTypeId

impl StableAbi for UTypeId

type IsNonZeroType = False

Whether this type has a single invalid bit-pattern.

pub const LAYOUT: &'static TypeLayout

The layout of the type provided by implementors.

pub const ABI_CONSTS: AbiConsts

const-equivalents of the associated types.

impl StructuralEq for UTypeId

impl StructuralPartialEq for UTypeId

impl Sync for UTypeId