Rollup of 10 pull requests #133786
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Rollup of 10 pull requests #133786
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The deployment target environment variable is OS-specific, and if you're in a place where you're asking `rustc` for the deployment target, you're likely to also wanna know the environment variable.
On nightly, we mention the trait is unstable
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
|
LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
|
note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
|
LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
help: consider restricting type parameter `T` but it is an `unstable` trait
|
LL | pub fn demo<T: Unstable>(t: T) {
| ++++++++++
```
On stable, we don't suggest the trait at all
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
|
LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
|
note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
|
LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
```
This test will break when `Step` gets stabilized, but punt until then.
```
help: consider restricting type parameter `T` with traits `Copy` and `Trait`
|
LL | fn duplicate_custom<T: Copy + Trait>(t: S<T>) -> (S<T>, S<T>) {
| ++++++++++++++
```
```
help: consider restricting type parameter `V` with trait `Copy`
|
LL | fn index<'a, K, V: std::marker::Copy>(map: &'a HashMap<K, V>, k: K) -> &'a V {
| +++++++++++++++++++
```
Pass in an appropriate `Option<DefId>` in more cases from hir ty lowering.
Co-authored-by: zachs18 <8355914+zachs18@users.noreply.github.com>
Co-authored-by: David Tolnay <dtolnay@gmail.com>
…v-var, r=davidtwco Print name of env var in `--print=deployment-target` The deployment target environment variable is OS-specific, and if you're in a place where you're asking `rustc` for the deployment target, you're likely to also wanna know the name of the environment variable. I myself wanted this for some code I'm working on in bootstrap, for example. Behaviour before this PR: ```console $ rustc --print=deployment-target --target=aarch64-apple-darwin deployment_target=11.0 $ rustc --print=deployment-target --target=aarch64-apple-visionos deployment_target=1.0 ``` Behaviour after this PR: ```console $ rustc --print=deployment-target --target=aarch64-apple-darwin MACOSX_DEPLOYMENT_TARGET=11.0 $ rustc --print=deployment-target --target=aarch64-apple-visionos XROS_DEPLOYMENT_TARGET=1.0 ``` My _belief_ is that this option is extremely rarely used in general, and a GitHub search for "rustc print deployment-target" seems to confirm this, it revealed only the following actual pieces of code using this: - https://github.com/PyO3/maturin/blob/b292ef69349f2a56cb8ab1b59fda0be3d3b9f138/src/build_context.rs#L1199-L1220 - https://github.com/rust-lang/cc-rs/blob/daab9244b03e244c4f2511944870d719c443f61f/src/lib.rs#L3422-L3426 `maturin` does `.split('=').last()`, so it will continue to work after this change, but `cc v1.0.84` did `.strip_prefix("deployment_target=")` since [this PR](rust-lang/cc-rs#848), so it would break. That's _probably_ fine though, it was broken in a lot of scenarios anyway, and [got](rust-lang/cc-rs#901) [reverted](rust-lang/cc-rs#943) in `v1.0.85`. So while this is _technically_ a breaking change, I really doubt that anyone is going to observe it, so it's probably fine. `@BlackHoleFox` wdyt? `@rustbot` label O-apple r? compiler
Stabilize noop_waker Tracking Issue: rust-lang#98286 This is a handy feature that's been used widely in tests and example async code and it'd be nice to make it available to users. cc ``@rust-lang/wg-async``
…it, r=compiler-errors
Don't suggest restricting bound with unstable traits on stable and mention it's unstable on nightly
On nightly, we mention the trait is unstable
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
|
LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
|
note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
|
LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
help: consider restricting type parameter `T` but it is an `unstable` trait
|
LL | pub fn demo<T: Unstable>(t: T) {
| ++++++++++
```
On stable, we don't suggest the trait at all
```
error[E0277]: the trait bound `T: Unstable` is not satisfied
--> $DIR/unstable-trait-suggestion.rs:13:9
|
LL | foo(t)
| --- ^ the trait `Unstable` is not implemented for `T`
| |
| required by a bound introduced by this call
|
note: required by a bound in `foo`
--> $DIR/unstable-trait-suggestion.rs:9:11
|
LL | fn foo<T: Unstable>(_: T) {}
| ^^^^^^^^ required by this bound in `foo`
```
Fix rust-lang#133511.
…youxu Lint against Symbol::intern on a string literal Disabled in tests where this doesn't make much sense
…ve-probe-adt, r=lcnr Structurally resolve in `probe_adt` fixes rust-lang#132320 r? lcnr
…tive-if-let-rescope, r=jieyouxu Reduce false positives on some common cases from if-let-rescope lint r? ``@jieyouxu`` We would like to identify a very common case in the ecosystem in which we do not need to apply the lint suggestion for the new Edition 2024 `if let` semantics. In this patch we excluded linting from `if let`s in statements and block tail expressions. In these simple cases, new Edition 2024 drop orders are identical to those of Edition 2021 and prior. However, conservatively we should still lint for the other cases, because [this example](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=2113df5ce78f161d32a1190faf5c7469) shows that the drop order changes are very pronounced, some of which are even sensitive to runtime data.
…ingjubilee
stabilize const_{size,align}_of_val
FCP passed [here](rust-lang#46571 (comment)).
Fixes rust-lang#46571.
… r=jieyouxu document -Zrandomize-layout in the unstable book tracking issue: rust-lang#106764 fixes rust-lang#130462
…id, r=compiler-errors Use correct `hir_id` for array const arg infers Fixes rust-lang#133771 `self.next_id()` results in the `DefId` for the const argument, created from the hack introduced by rust-lang#133468, having no `HirId` associated with it. This then results in an ICE in metadata encoding. Fixing this then results in *another* ICE where `encode_defs` was not skipping encoding `type_of` and other queries for `DefId`s when they correspond to a `ConstArgKind::Infer` node. This only reproduces with a library crate as metadata is not encoded for binaries, and apparently we had 0 tests for `generic_arg_infer` for array lengths in a library crate so this was not caught :< cc rust-lang#133589 ``@voidc`` r? ``@compiler-errors`` ``@lcnr``
Add const evaluation error UI test. This closes rust-lang#78834
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@bors r+ rollup=never p=10 |
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Successful merges:
--print=deployment-target#133041 (Print name of env var in--print=deployment-target)probe_adt#133558 (Structurally resolve inprobe_adt)hir_idfor array const arg infers #133779 (Use correcthir_idfor array const arg infers)r? @ghost
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