Closes #35897.
FreshLateAnon(Cell<u32>),
/// Always use this one lifetime.
Exact(Region),
- /// Like `Exact(Static)` but requires `#![feature(static_in_const)]`.
- Static,
/// Less or more than one lifetime were found, error on unspecified.
Error(Vec<ElisionFailureInfo>)
}
hir::ItemConst(..) => {
// No lifetime parameters, but implied 'static.
let scope = Scope::Elision {
- elide: Elide::Static,
+ elide: Elide::Exact(Region::Static),
s: ROOT_SCOPE
};
self.with(scope, |_, this| intravisit::walk_item(this, item));
return;
}
Elide::Exact(l) => l.shifted(late_depth),
- Elide::Static => {
- if !self.sess.features.borrow().static_in_const {
- self.sess
- .struct_span_err(span,
- "this needs a `'static` lifetime or the \
- `static_in_const` feature, see #35897")
- .emit();
- }
- Region::Static
- }
Elide::Error(ref e) => break Some(e)
};
for lifetime_ref in lifetime_refs {
// Allows untagged unions `union U { ... }`
(active, untagged_unions, "1.13.0", Some(32836)),
- // elide `'static` lifetimes in `static`s and `const`s
- (active, static_in_const, "1.13.0", Some(35897)),
-
// Used to identify the `compiler_builtins` crate
// rustc internal
(active, compiler_builtins, "1.13.0", None),
(accepted, item_like_imports, "1.14.0", Some(35120)),
// Allows using `Self` and associated types in struct expressions and patterns.
(accepted, more_struct_aliases, "1.16.0", Some(37544)),
+ // elide `'static` lifetimes in `static`s and `const`s
+ (accepted, static_in_const, "1.17.0", Some(35897)),
);
// (changing above list without updating src/doc/reference.md makes @cmr sad)
+++ /dev/null
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-static FOO: &str = "this will work once static_in_const is stable";
-//~^ ERROR: this needs a `'static` lifetime or the `static_in_const` feature
-
-fn main() {}
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-#![feature(static_in_const)]
#![allow(dead_code)]
fn non_elidable<'a, 'b>(a: &'a u8, b: &'b u8) -> &'a u8 {
#![feature(rustc_attrs)]
#![feature(stmt_expr_attributes)]
-#![feature(static_in_const)]
#![allow(dead_code)]
// These are expected to require translation.
#![feature(rustc_attrs)]
#![feature(stmt_expr_attributes)]
-#![feature(static_in_const)]
#![allow(dead_code)]
// These are expected to require translation.
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-#![feature(static_in_const)]
#![allow(dead_code)]
// very simple test for a 'static static with default lifetime