4 Commits

Author	SHA1	Message	Date
bors	88197214b8	Auto merge of #75573 - Aaron1011:feature/const-mutation-lint, r=oli-obk ... Add CONST_ITEM_MUTATION lint Fixes #74053 Fixes #55721 This PR adds a new lint `CONST_ITEM_MUTATION`. Given an item `const FOO: SomeType = ..`, this lint fires on: * Attempting to write directly to a field (`FOO.field = some_val`) or array entry (`FOO.array_field[0] = val`) * Taking a mutable reference to the `const` item (`&mut FOO`), including through an autoderef `FOO.some_mut_self_method()` The lint message explains that since each use of a constant creates a new temporary, the original `const` item will not be modified.	2020-09-10 05:54:26 +00:00
Aaron Hill	f422ef141a	Add CONST_ITEM_MUTATION lint ... Fixes #74053 Fixes #55721 This PR adds a new lint `CONST_ITEM_MUTATION`. Given an item `const FOO: SomeType = ..`, this lint fires on: * Attempting to write directly to a field (`FOO.field = some_val`) or array entry (`FOO.array_field[0] = val`) * Taking a mutable reference to the `const` item (`&mut FOO`), including through an autoderef `FOO.some_mut_self_method()` The lint message explains that since each use of a constant creates a new temporary, the original `const` item will not be modified.	2020-09-07 08:44:35 -04:00
Simon Vandel Sillesen	c2693db264	Add peephold optimization that simplifies Ne(_1, false) and Ne(false, _1) into _1 ... This was observed emitted from the MatchBranchSimplification pass.	2020-09-06 11:51:44 +02:00
mark	9e5f7d5631	mv compiler to compiler/	2020-08-30 18:45:07 +03:00