Macro serde::lib::core::thread_local

1.0.0 · source · []
macro_rules! thread_local {
    () => { ... };
    (
        $(#[$attr:meta])* $vis:vis static $name:ident : $t:ty = const {
        $init:expr }; $($rest:tt)*
    ) => { ... };
    ($(#[$attr:meta])* $vis:vis static $name:ident : $t:ty = const { $init:expr }) => { ... };
    (
        $(#[$attr:meta])* $vis:vis static $name:ident : $t:ty = $init:expr;
        $($rest:tt)*
    ) => { ... };
    ($(#[$attr:meta])* $vis:vis static $name:ident : $t:ty = $init:expr) => { ... };
}
Expand description

Declare a new thread local storage key of type std::thread::LocalKey.

Syntax

The macro wraps any number of static declarations and makes them thread local. Publicity and attributes for each static are allowed. Example:

use std::cell::RefCell;
thread_local! {
    pub static FOO: RefCell<u32> = RefCell::new(1);

    #[allow(unused)]
    static BAR: RefCell<f32> = RefCell::new(1.0);
}

See LocalKey documentation for more information.