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use std::marker::PhantomData;
pub struct NfaBuilder<'brand> {
brand: PhantomData<&'brand mut &'brand mut ()>,
}
impl NfaBuilder<'_> {
pub fn with<R, F: FnOnce(NfaBuilder<'_>) -> R>(f: F) -> R {
Brand::with(|brand| {
f(Self { brand: brand.lt })
//~^ ERROR lifetime may not live long enough
//~| ERROR lifetime may not live long enough
})
}
}
#[derive(Clone, Copy)]
pub struct Brand<'brand> {
lt: PhantomData<&'brand mut &'brand mut ()>,
}
impl Brand<'_> {
pub fn with<R, F: FnOnce(Brand<'_>) -> R>(f: F) -> R {
f(Self { lt: PhantomData })
}
}
fn main() {}
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