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Remove identity_future from stdlib

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This function/lang_item was introduced in #104321 as a temporary workaround of future lowering.
The usage and need for it went away in #104833.
After a bootstrap update, the function itself can be removed from `std`.
This commit is contained in:
Arpad Borsos 2023-05-07 10:52:01 +02:00
parent 70a779cb7d
commit 48dfbeee27
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2 changed files with 0 additions and 8 deletions
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7
library/core/src/future/mod.rs
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@ -66,10 +66,3 @@ pub unsafe fn get_context<'a, 'b>(cx: ResumeTy) -> &'a mut Context<'b> {
// that fulfills all the requirements for a mutable reference.
unsafe { &mut *cx.0.as_ptr().cast() }
}
#[doc(hidden)]
#[unstable(feature = "gen_future", issue = "50547")]
#[inline]
pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut {
f
}

1
src/tools/rust-analyzer/crates/hir-def/src/lang_item.rs
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@ -379,7 +379,6 @@ language_item_table! {
// FIXME(swatinem): the following lang items are used for async lowering and
// should become obsolete eventually.
ResumeTy, ResumeTy, resume_ty, Target::Struct, GenericRequirement::None;
IdentityFuture, identity_future, identity_future_fn, Target::Fn, GenericRequirement::None;
GetContext, get_context, get_context_fn, Target::Fn, GenericRequirement::None;
Context, Context, context, Target::Struct, GenericRequirement::None;