bjoernager/rust
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Added feature gate.

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This commit is contained in:
Alexander Regueiro 2019-10-31 10:52:05 +08:00 • committed by Charles Lew
parent 87dc824248
commit 2dc86a6450
2 changed files with 5 additions and 0 deletions
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4
compiler/rustc_feature/src/active.rs
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@ -683,6 +683,10 @@ declare_features! (
/// Allows the `?` operator in const contexts. /// Allows the `?` operator in const contexts.
(active, const_try, "1.56.0", Some(74935), None), (active, const_try, "1.56.0", Some(74935), None),
/// Allows upcasting trait objects via supertraits.
/// Trait upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`.
(active, trait_upcasting, "1.56.0", Some(65991), None),
// ------------------------------------------------------------------------- // -------------------------------------------------------------------------
// feature-group-end: actual feature gates // feature-group-end: actual feature gates
// ------------------------------------------------------------------------- // -------------------------------------------------------------------------

1
compiler/rustc_span/src/symbol.rs
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@ -1270,6 +1270,7 @@ symbols! {
trace_macros, trace_macros,
track_caller, track_caller,
trait_alias, trait_alias,
trait_upcasting,
transmute, transmute,
transparent, transparent,
transparent_enums, transparent_enums,