Remove _all_ codegen dependencies on `rustc_mir` 🎉
~This code is pretty self-contained. It has no references to the rest of `rustc_mir`. Moving it to its own crate means that almost all of the references from `rustc_codegen_*` to `rustc_mir` are instead moved to `rustc_monomorphize`, which should help improve compile times for the compiler a bit...~
With the help of eddyb and oli-obk, all of the dependencies of `librustc_codegen_*` on `librustc_mir` have been removed:
- dependencies on `rustc_mir::monomorphize` were moved to `rustc::mir::mono`
- `rustc_mir::const_eval::const_field` is made into a query.
- `rustc_mir::interpret::type_name` is made into a query.
This should help reduce compile time when working on `rustc_mir` 🕐
cc #47849
r? @eddyb
Add more detail to type inference error
When encountering code where type inference fails, add more actionable
information:
```
fn main() {
let foo = Vec::new();
}
```
```
error[E0282]: type annotations needed in `std::vec::Vec<T>`
--> $DIR/vector-no-ann.rs:2:16
|
LL | let foo = Vec::new();
| --- ^^^^^^^^ cannot infer type for `T` in `std::vec::Vec<T>`
| |
| consider giving `foo` a type
```
Fix#25633.
Fix lines highlighting in rustdoc source view
Fixes#60948.
This PR fixes how we handle the lines highlighting from the URL (so in "/doc/src/alloc/string.rs.html#285-283", the "285-283" part). We got a hard limit on 50000, for some unknown and lost reasons which was used in case only one line is selected.
r? @Manishearth
Fix missing semicolon in doc
A semicolon is missing in the examples of compile_error.
Macros that expand to items must be delimited with braces or followed by a semicolon.
Point at individual type args on arg count mismatch
- Point at individual type arguments on arg count mismatch
- Make generics always have a valid span, even when there are no args
- Explain that `impl Trait` introduces an implicit type argument
Fix#55991.
rustc: remove Res::Upvar.
By keeping track of the current "`body_owner`" (the `DefId` of the current fn/closure/const/etc.) in several passes, `Res::Upvar` and `hir::Upvar` don't need to contain contextual information about the closure.
By leveraging [`indexmap`](https://docs.rs/indexmap), the list of upvars for a given closure can now also be queried, to check whether a local variable is a closure capture, and so `Res::Upvar` can be merged with `Res::Local`.
And finally, the `tcx.upvars(...)` query now collects upvars from HIR, without relying on `rustc_resolve`.
r? @petrochenkov cc @varkor @davidtwco
