Create a thread_local! per type instantiated

1

Consider the following code:

pub struct FooManager<T> {
    data: Vec<T>,
}

impl FooManager<T> {
    fn new() -> FooManager {
        foo { data: Vec::new() }
    }

    pub fn get_per_thread() -> &FooManager {
        &MANAGER<T>

    }
}

thread_local! {
    static MANAGER<T>: FooManager<T> = FooManager::new();
}

If we dropped the <T>, it is easy to make the code work. Question is: is there a way t make thsi work with the <T>, i.e. I want to be able to have:

FooManager<usize>, FooManager<String>, FooManager<Cat>, FooManager<Dog>

and have a separate thread_local variable created for each.

2

There are some old proposals for generic statics, which could solve this, but none of them seem to have gone very far.

For now, putting an AnyMap into a thread_local is one possible alternative.

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3

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