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suggest type annotation for local statement initialed by ref expression
In a local statement with a type declaration, if a ref expression is used on the right side and not used on the left side, in addition to removing the `&` and `&mut` on the right side, we can add them on the left side alternatively
Fixes #102892
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Add eval hack in `super_relate_consts` back
Partially reverts 01adb7e98d5656c06497f33dd2747df144e78356.
This extra eval call *still* needs to happen, for example, in `normalize_param_env_or_error` when a param-env predicate has an unnormalized constant, since the param-env candidates never get normalized during candidate assembly (everywhere else we can assume that they are normalized fully).
r? `@lcnr,` though I feel like I've assigned quite a few PRs to you in the last few days, so feel free to reassign to someone else familiar with this code if you're busy!
cc #103243 (fixes the issue, but don't want to auto-close that until a backport is performed).
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Perf improvements for effective visibility calculating
related to https://github.com/rust-lang/rust/pull/102026
r? `@petrochenkov`
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This allows writing the following function signatures:
```rust
fn f0() -> impl Fn() -> impl Trait;
fn f3() -> &'static dyn Fn() -> impl Trait;
```
These signatures were already allowed for common traits and associated
types, there is no reason why `Fn*` traits should be special in this
regard.
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reaching end
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printing constants
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Support raw-dylib functions being used inside inlined functions
Fixes #102714
Issue Details:
When generating the import library for `raw-dylib` symbols, we currently only use the functions and variables declared within the current crate. This works fine if all crates are static libraries or `rlib`s as the generated import library will be contained in the static library or `rlib` itself, but if a dependency is a dynamic library AND the use of a `raw-dylib` function or variable is inlined or part of a generic instantiation then the current crate won't see its dependency's import library and so linking will fail.
Fix Details:
Instead, when we generate the import library for a `dylib` or `bin` crate, we will now generate it for the symbols both for the current crate and all upstream crates. We do this in two steps so that the import library for the current crate is passed into the linker first, thus it is preferred if there are any ambiguous symbols.
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Fixes #103460
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r=GuillaumeGomez
rustdoc: remove unused `.sidebar-logo` DOM on source pages
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GuillaumeGomez:cleanup-rustdoc-gui-highlight-colors, r=notriddle
Use functions in highlight-colors rustdoc GUI test
r? ``@notriddle``
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Delay span bug when we can't map lifetimes back in `collect_trait_impl_trait_tys`
When a lifetime is late-bound in a trait signature, but early-bound in an impl signature, we already emit an error -- however, we also ICE in `collect_trait_impl_trait_tys`, so just delay a bug here.
Fixes #103407
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Don't ICE when reporting borrowck errors involving regions from `anonymous_lifetime_in_impl_trait`
The issue here is that when we have:
```
trait Trait<'a> { .. }
fn foo(arg: impl Trait) { .. }
```
The anonymous lifetime `'_` that we generate for `arg: impl Trait` doesn't end up in the argument type (which is a param) but in a where-clause of the function, in a predicate whose self type is that param ty.
Fixes #101660
r? ``@cjgillot``
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Change terminology for assoc method suggestions when they are not called
Fixes #103325
```@rustbot``` label +A-diagnostics
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Fix assertion failed for break_last_token and trailing token
Fixes #103143
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Only apply `ProceduralMasquerade` hack to older versions of `rental`
The latest version of `rental` (v0.5.6) contains a fix that allows it to
compile without relying on the pretty-print back-compat hack.
Hopefully, there are no longer any crates relying on the affected
versions of the (much less popular) `procedural-masquerade` crate. This
should allow us to target the pretty-print back-compat hack specifically
to older versions of `rental`, and specifically mention upgrading to
`rental` v0.5.6 in the lint message.
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Sort tests at compile time, not at startup
Recently, another Miri user was trying to run `cargo miri test` on the crate `iced-x86` with `--features=code_asm,mvex`. This configuration has a startup time of ~18 minutes. That's ~18 minutes before any tests even start to run. The fact that this crate has over 26,000 tests and Miri is slow makes a lot of code which is otherwise a bit sloppy but fine into a huge runtime issue.
Sorting the tests when the test harness is created instead of at startup time knocks just under 4 minutes out of those ~18 minutes. I have ways to remove most of the rest of the startup time, but this change requires coordinating changes of both the compiler and libtest, so I'm sending it separately.
(except for doctests, because there is no compile-time harness)
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Because Box<T> has pass-through implementations, rustdoc was giving it the
"Notable Traits" treatment for Iterator, Read, Write, and Future, even when the
type of T was unspecified.
Pin had the same problem, but just for Future.
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This patch makes it possible to use varargs for calling conventions,
which are either based on C (like efiapi) or C is based
on them (for example sysv64 and win64).
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GuillaumeGomez:gui-test-jump-to-def-background-cleanup, r=notriddle
Use functions for jump-to-def-background rustdoc GUI test
r? `@notriddle`
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Pretty print lifetimes captured by RPIT
This specifically makes the output in #103409 change from:
```diff
error: `impl` item signature doesn't match `trait` item signature
--> $DIR/signature-mismatch.rs:15:5
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LL | fn async_fn(&self, buff: &[u8]) -> impl Future<Output = Vec<u8>>;
| ----------------------------------------------------------------- expected `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>`
...
LL | fn async_fn<'a>(&self, buff: &'a [u8]) -> impl Future<Output = Vec<u8>> + 'a {
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>`
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>> + '2`
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= note: expected `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>`
- found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>>`
+ found `fn(&'1 Struct, &'2 [u8]) -> impl Future<Output = Vec<u8>> + '2`
= help: the lifetime requirements from the `impl` do not correspond to the requirements in the `trait`
= help: verify the lifetime relationships in the `trait` and `impl` between the `self` argument, the other inputs and its output
error: aborting due to previous error
```
Along with the UI tests in this PR, which I think are all improvements!
r? `@oli-obk` though feel free to re-roll
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Fix wrapped valid-range handling in ty_find_init_error
Rust's niche handling allows for wrapping valid ranges with end < start;
for instance, a valid range with start=43 and end=41 means a niche of
42. Most places in the compiler handle this correctly, but
`ty_find_init_error` assumed that `lo > 0` means the type cannot contain a
zero.
Fix it to handle wrapping ranges.
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