typed_quote/tokens/
const_lifetime.rs1use core::fmt;
2
3use super::*;
4
5impl<T: HasConstLifetime + ?Sized> Default for ConstLifetime<T> {
6 fn default() -> Self {
7 Self::new()
8 }
9}
10
11impl<T: HasConstLifetime + ?Sized> ConstLifetime<T> {
12 pub const fn new() -> Self {
13 Self(PhantomData, NoSpan)
14 }
15}
16
17impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> ConstLifetime<T, S> {
18 pub const fn as_lifetime(self) -> Lifetime<'static, S> {
19 Lifetime(T::LIFETIME.0, self.1)
20 }
21}
22
23impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> Copy for ConstLifetime<T, S> {}
24impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> Clone for ConstLifetime<T, S> {
25 fn clone(&self) -> Self {
26 *self
27 }
28}
29
30impl<T: HasConstLifetime + ?Sized, S: MaybeSpan + fmt::Debug> fmt::Debug for ConstLifetime<T, S> {
31 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
32 f.debug_tuple("ConstLifetime")
33 .field(&format_args!("{}", T::LIFETIME.0))
34 .field(&self.1)
35 .finish()
36 }
37}
38
39impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> sealed::IntoTokens for ConstLifetime<T, S> {}
40impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> IntoTokens for ConstLifetime<T, S> {
41 crate::impl_into_tokens!(|self, ts| (Lifetime(T::LIFETIME.0, self.1), ts).into_st());
42}
43
44impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> sealed::ToTokens for ConstLifetime<T, S> {}
45impl<T: HasConstLifetime + ?Sized, S: MaybeSpan> ToTokens for ConstLifetime<T, S> {
46 crate::impl_to_tokens! {copy}
47}
48
49impl<T: HasConstLifetime + ?Sized, SO: MaybeSpan> sealed::WithSpan for ConstLifetime<T, SO> {}
50impl<T: HasConstLifetime + ?Sized, SO: MaybeSpan> WithSpan for ConstLifetime<T, SO> {
51 type WithDefaultSpan<S: crate::Span> = ConstLifetime<T, SO::WithDefaultSpan<S>>;
52
53 fn with_default_span<S: crate::Span>(self, span: S) -> Self::WithDefaultSpan<S> {
54 ConstLifetime(self.0, self.1.with_default_span(span))
55 }
56
57 type WithReplacedSpan<S: crate::Span> = ConstLifetime<T, SO::WithReplacedSpan<S>>;
58
59 fn with_replaced_span<S: crate::Span>(self, span: S) -> Self::WithReplacedSpan<S> {
60 ConstLifetime(self.0, self.1.with_replaced_span(span))
61 }
62}
63
64impl<T: HasConstLifetime + ?Sized, SO: MaybeSpan> sealed::RefWithSpan for ConstLifetime<T, SO> {}
65impl<T: HasConstLifetime + ?Sized, SO: MaybeSpan> RefWithSpan for ConstLifetime<T, SO> {
66 crate::impl_ref_with_span! {copy}
67}