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Rollup merge of #125314 - jdonszelmann:global-registration-feature-gate, r=pnkfelix

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Add an experimental feature gate for global registration

See #125119 for the tracking issue.
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Matthias Krüger 2024-05-20 18:13:49 +02:00 • committed by GitHub
commit a79737c3f0
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5 changed files with 20 additions and 0 deletions
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1
compiler/rustc_ast_passes/src/feature_gate.rs
View file

@ -560,6 +560,7 @@ pub fn check_crate(krate: &ast::Crate, sess: &Session, features: &Features) {
gate_all!(postfix_match, "postfix match is experimental"); gate_all!(postfix_match, "postfix match is experimental");
gate_all!(mut_ref, "mutable by-reference bindings are experimental"); gate_all!(mut_ref, "mutable by-reference bindings are experimental");
gate_all!(precise_capturing, "precise captures on `impl Trait` are experimental"); gate_all!(precise_capturing, "precise captures on `impl Trait` are experimental");
gate_all!(global_registration, "global registration is experimental");
if !visitor.features.never_patterns { if !visitor.features.never_patterns {
if let Some(spans) = spans.get(&sym::never_patterns) { if let Some(spans) = spans.get(&sym::never_patterns) {

2
compiler/rustc_feature/src/unstable.rs
View file

@ -489,6 +489,8 @@ declare_features! (
(incomplete, generic_const_exprs, "1.56.0", Some(76560)), (incomplete, generic_const_exprs, "1.56.0", Some(76560)),
/// Allows generic parameters and where-clauses on free & associated const items. /// Allows generic parameters and where-clauses on free & associated const items.
(incomplete, generic_const_items, "1.73.0", Some(113521)), (incomplete, generic_const_items, "1.73.0", Some(113521)),
/// Allows registering static items globally, possibly across crates, to iterate over at runtime.
(unstable, global_registration, "CURRENT_RUSTC_VERSION", Some(125119)),
/// Allows using `..=X` as a patterns in slices. /// Allows using `..=X` as a patterns in slices.
(unstable, half_open_range_patterns_in_slices, "1.66.0", Some(67264)), (unstable, half_open_range_patterns_in_slices, "1.66.0", Some(67264)),
/// Allows `if let` guard in match arms. /// Allows `if let` guard in match arms.

1
compiler/rustc_span/src/symbol.rs
View file

@ -930,6 +930,7 @@ symbols! {
global_alloc_ty, global_alloc_ty,
global_allocator, global_allocator,
global_asm, global_asm,
global_registration,
globs, globs,
gt, gt,
half_open_range_patterns, half_open_range_patterns,

3
tests/ui/feature-gates/feature-gate-global-registration.rs Normal file
View file

@ -0,0 +1,3 @@
todo!(); //~ ERROR
fn main() {}

13
tests/ui/feature-gates/feature-gate-global-registration.stderr Normal file
View file

@ -0,0 +1,13 @@
error: expected one of `!` or `::`, found `(`
--> $DIR/feature-gate-global-registration.rs:1:1
|
LL | todo!();
| ^^^^^^^
| |
| expected one of `!` or `::`
| in this macro invocation
|
= note: this error originates in the macro `todo` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 1 previous error