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Author SHA1 Message Date
Nicholas Nethercote
6b62f37402 Restrict From<S> for {D,Subd}iagnosticMessage.
Currently a `{D,Subd}iagnosticMessage` can be created from any type that
impls `Into<String>`. That includes `&str`, `String`, and `Cow<'static,
str>`, which are reasonable. It also includes `&String`, which is pretty
weird, and results in many places making unnecessary allocations for
patterns like this:
```
self.fatal(&format!(...))
```
This creates a string with `format!`, takes a reference, passes the
reference to `fatal`, which does an `into()`, which clones the
reference, doing a second allocation. Two allocations for a single
string, bleh.

This commit changes the `From` impls so that you can only create a
`{D,Subd}iagnosticMessage` from `&str`, `String`, or `Cow<'static,
str>`. This requires changing all the places that currently create one
from a `&String`. Most of these are of the `&format!(...)` form
described above; each one removes an unnecessary static `&`, plus an
allocation when executed. There are also a few places where the existing
use of `&String` was more reasonable; these now just use `clone()` at
the call site.

As well as making the code nicer and more efficient, this is a step
towards possibly using `Cow<'static, str>` in
`{D,Subd}iagnosticMessage::{Str,Eager}`. That would require changing
the `From<&'a str>` impls to `From<&'static str>`, which is doable, but
I'm not yet sure if it's worthwhile.
2023-05-03 08:44:39 +10:00
Ezra Shaw
d31e8a499b
allow array-style simd in inline asm 2023-04-23 19:28:50 +12:00
Scott McMurray
4abb455529 Update ty::VariantDef to use IndexVec<FieldIdx, FieldDef>
And while doing the updates for that, also uses `FieldIdx` in `ProjectionKind::Field` and `TypeckResults::field_indices`.

There's more places that could use it (like `rustc_const_eval` and `LayoutS`), but I tried to keep this PR from exploding to *even more* places.

Part 2/? of https://github.com/rust-lang/compiler-team/issues/606
2023-03-30 09:23:40 -07:00
Michael Woerister
ee8bc5b0b2 Use FxIndexSet instead of FxHashSet for asm_target_features query. 2023-03-01 10:19:26 +01:00
Alan Egerton
695072daa6
Remove type-traversal trait aliases 2023-02-22 17:04:58 +00:00
Kyle Matsuda
f6c3469aa2 fix new usage of type_of 2023-02-16 17:05:59 -07:00
Camille GILLOT
40cb4d1bc7 Even less HIR. 2023-02-14 20:27:38 +00:00
Camille GILLOT
15d6325747 Remove HirId -> LocalDefId map from HIR. 2023-01-28 09:55:26 +00:00
Maybe Waffle
09485eaae1 rustc_hir_analysis: remove ref patterns 2023-01-17 07:48:19 +00:00
Maybe Waffle
a17ccfa621 Accept TyCtxt instead of TyCtxtAt in Ty::is_* functions
Functions in answer:

- `Ty::is_freeze`
- `Ty::is_sized`
- `Ty::is_unpin`
- `Ty::is_copy_modulo_regions`
2022-10-27 15:06:08 +04:00
lcnr
fb3ab13a1c rustc_hir_typeck: fix paths and partially mv files 2022-10-20 17:53:14 +02:00
Oli Scherer
d90d055691 Allow transmutes between the same types after erasing lifetimes 2022-10-07 16:33:32 +00:00
Oli Scherer
c7b6ebdf7c It's not about types or consts, but the lack of regions 2022-10-04 14:10:44 +00:00
lcnr
550715d74d HirId for deferred_transmute_checks 2022-10-03 13:53:17 +02:00
Maybe Waffle
a8f7e244b7 Refactor rustc lint API 2022-10-01 10:03:06 +00:00
lcnr
1fc86a63f4 rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00
Renamed from compiler/rustc_typeck/src/check/intrinsicck.rs (Browse further)