pub trait EventToken {
    // Required methods
    fn as_raw_token(&self) -> u64;
    fn from_raw_token(data: u64) -> Self;
}
Expand description

Trait that can be used to associate events with arbitrary enums when using WaitContext.

Simple enums that have no or primitive variant data data can use the #[derive(EventToken)] custom derive to implement this trait. See event_token_derive::event_token for details.

Required Methods§

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fn as_raw_token(&self) -> u64

Converts this token into a u64 that can be turned back into a token via from_raw_token.

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fn from_raw_token(data: u64) -> Self

Converts a raw token as returned from as_raw_token back into a token.

It is invalid to give a raw token that was not returned via as_raw_token from the same Self. The implementation can expect that this will never happen as a result of its usage in WaitContext.

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

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impl EventToken for u8

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fn as_raw_token(&self) -> u64

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fn from_raw_token(data: u64) -> Self

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impl EventToken for u16

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fn as_raw_token(&self) -> u64

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fn from_raw_token(data: u64) -> Self

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impl EventToken for u32

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fn as_raw_token(&self) -> u64

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fn from_raw_token(data: u64) -> Self

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impl EventToken for u64

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fn as_raw_token(&self) -> u64

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fn from_raw_token(data: u64) -> Self

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impl EventToken for ()

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fn as_raw_token(&self) -> u64

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fn from_raw_token(_data: u64) -> Self

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impl EventToken for usize

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fn as_raw_token(&self) -> u64

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fn from_raw_token(data: u64) -> Self

Implementors§

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impl EventToken for Descriptor

Implement token for implementations that wish to use this struct as such

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for Token

impl EventToken for DisplayEventToken

impl EventToken for MetricsControllerToken

impl EventToken for Token