Commit c386ffb

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Rollup merge of #142756 - Daniel-Aaron-Bloom:const-clone, r=oli-obk

Make `Clone` a `const_trait` See [tracking issue](#142757) for justification.

2 parents 44d50f9 + 9185143 commit c386ffbCopy full SHA for c386ffb

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Lines changed: 7 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -36,7 +36,7 @@`
`36`	`36`
`37`	`37`	`#![stable(feature = "rust1", since = "1.0.0")]`
`38`	`38`
`39`		`-use crate::marker::PointeeSized;`
	`39`	`+use crate::marker::{Destruct,PointeeSized};`
`40`	`40`
`41`	`41`	`mod uninit;`
`42`	`42`
`@@ -157,6 +157,8 @@ mod uninit;`
`157`	`157`	`#[lang = "clone"]`
`158`	`158`	`#[rustc_diagnostic_item = "Clone"]`
`159`	`159`	`#[rustc_trivial_field_reads]`
	`160`	`+#[rustc_const_unstable(feature = "const_clone", issue = "142757")]`
	`161`	`+#[const_trait]`
`160`	`162`	`pub trait Clone: Sized {`
`161`	`163`	`/// Returns a duplicate of the value.`
`162`	`164`	`///`
`@@ -208,7 +210,10 @@ pub trait Clone: Sized {`
`208`	`210`	`/// allocations.`
`209`	`211`	`#[inline]`
`210`	`212`	`#[stable(feature = "rust1", since = "1.0.0")]`
`211`		`- fn clone_from(&mut self, source: &Self) {`
	`213`	`+ fn clone_from(&mut self, source: &Self)`
	`214`	`+ where`
	`215`	`+ Self: ~const Destruct,`
	`216`	`+ {`
`212`	`217`	`*self = source.clone()`
`213`	`218`	`}`
`214`	`219`	`}`

Lines changed: 1 addition & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -103,6 +103,7 @@`
`103`	`103`	`#![feature(cfg_select)]`
`104`	`104`	`#![feature(cfg_target_has_reliable_f16_f128)]`
`105`	`105`	`#![feature(const_carrying_mul_add)]`
	`106`	`+#![feature(const_destruct)]`
`106`	`107`	`#![feature(const_eval_select)]`
`107`	`108`	`#![feature(core_intrinsics)]`
`108`	`109`	`#![feature(coverage_attribute)]`

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