enable `rust_2018_idioms` lint group for doctests #106621

onur-ozkan · 2023-01-09T06:32:12Z

With this change, rust_2018_idioms lint group will be enabled for compiler/libstd doctests.

Resolves #106086
Resolves #99144

Signed-off-by: ozkanonur work@onurozkan.dev

rustbot · 2023-01-09T06:32:20Z

r? @m-ou-se

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rustbot · 2023-01-09T06:32:24Z

Hey! It looks like you've submitted a new PR for the library teams!

If this PR contains changes to any rust-lang/rust public library APIs then please comment with @rustbot label +T-libs-api -T-libs to tag it appropriately. If this PR contains changes to any unstable APIs please edit the PR description to add a link to the relevant API Change Proposal or create one if you haven't already. If you're unsure where your change falls no worries, just leave it as is and the reviewer will take a look and make a decision to forward on if necessary.

Examples of T-libs-api changes:

Stabilizing library features
Introducing insta-stable changes such as new implementations of existing stable traits on existing stable types
Introducing new or changing existing unstable library APIs (excluding permanently unstable features / features without a tracking issue)
Changing public documentation in ways that create new stability guarantees
Changing observable runtime behavior of library APIs

src/librustdoc/doctest.rs

jyn514 · 2023-01-09T23:08:39Z

@ozkanonur you should fix the warnings - if it's a lot of effort, we can split it up by crate on the original issue and ask for volunteers to help fix the issues.

jyn514

The compiler changes look good to me, but we should probably have someone from libs sign off on the changes to the public docs.

src/bootstrap/compile.rs

jyn514 · 2023-01-10T21:26:54Z

r? libs

@cuviper Do the changes to the standard library documentation look like an improvement?

GuillaumeGomez · 2023-04-28T09:32:03Z

compiler/rustc_ast_lowering/src/lib.rs

    /// fn test<'a, T: Debug>(x: &'a T) -> impl Debug + 'a {
    ///     x
    /// }
    /// ```
    ///
    /// we will create a TAIT definition in the HIR like
    ///
-    /// ```
+    /// ```rust,ignore (pseudo-Rust)


If it was compiling before, why not add a hidden import instead?

why not add a hidden import instead?

There are multiple errors, and one of them was:

error: unconstrained opaque type --> src/lib.rs:1488:30 | 4 | type TestReturn<'a, 'x, T> = impl Debug + 'x; | ^^^^^^^^^^^^^^^ | = note: `TestReturn` must be used in combination with a concrete type within the same item

GuillaumeGomez · 2023-04-28T09:32:11Z

compiler/rustc_ast_lowering/src/lib.rs

    /// type TestReturn<'a, T, 'x> = impl Debug + 'x
    /// ```
    ///
    /// and return a type like `TestReturn<'static, T, 'a>`, so that the function looks like:
    ///
-    /// ```rust
+    /// ```rust,ignore (pseudo-Rust)


If it was compiling before, why not add a hidden import instead?

It's using dummy type defined on the previous doc-comment which is also ignored.

GuillaumeGomez · 2023-04-28T09:32:21Z

compiler/rustc_builtin_macros/src/deriving/generic/mod.rs

@@ -1038,7 +1038,7 @@ impl<'a> MethodDef<'a> {
    /// `&self.x` because that might cause an unaligned ref. So for any trait
    /// method that takes a reference, we use a local block to force a copy.
    /// This requires that the field impl `Copy`.
-    /// ```
+    /// ```rust,ignore (example)


Why ignoring this one?

#106621 (comment)

Signed-off-by: ozkanonur <work@onurozkan.dev>

onur-ozkan · 2023-05-06T21:39:09Z

@rustbot ready

Mark-Simulacrum · 2023-05-06T22:14:27Z

@bors r+

bors · 2023-05-06T22:14:29Z

📌 Commit 4e7c14f has been approved by Mark-Simulacrum

It is now in the queue for this repository.

bors · 2023-05-08T04:50:31Z

⌛ Testing commit 4e7c14f with merge ea0c22e...

bors · 2023-05-08T07:35:21Z

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing ea0c22e to master...

rust-timer · 2023-05-08T08:51:11Z

Finished benchmarking commit (ea0c22e): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

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Results

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	mean	range	count
Regressions ❌ (primary)	4.5%	[4.1%, 5.3%]	3
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.7%	[-2.7%, -2.7%]	1
Improvements ✅ (secondary)	-3.5%	[-5.5%, -2.4%]	4
All ❌✅ (primary)	2.7%	[-2.7%, 5.3%]	4

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Bootstrap: missing data

Update doc for `PhantomData` to match code example After rust-lang#106621, there is no longer a `T: 'a` annotation in the doc example, so update the text to match the code.

Update doc for `PhantomData` to match code example After rust-lang/rust#106621, there is no longer a `T: 'a` annotation in the doc example, so update the text to match the code.

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jyn514 assigned jyn514 and unassigned m-ou-se Jan 9, 2023

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enable rust_2018_idioms for doctests

4e7c14f

Signed-off-by: ozkanonur <work@onurozkan.dev>

onur-ozkan force-pushed the enable-elided-lifetimes-for-doctests branch from 9e811dd to 4e7c14f Compare May 6, 2023 21:12

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This was referenced May 8, 2023

Rust ast lowering doc tests #106486

Closed

Rustc infer doctest #106523

Closed

99144 enable doctests #106574

Closed

lukas-code mentioned this pull request May 14, 2023

Update doc for PhantomData to match code example #102673

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enable `rust_2018_idioms` lint group for doctests #106621

enable `rust_2018_idioms` lint group for doctests #106621

onur-ozkan commented Jan 9, 2023 •

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enable rust_2018_idioms lint group for doctests #106621

enable rust_2018_idioms lint group for doctests #106621

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onur-ozkan commented May 6, 2023

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Overall result: no relevant changes - no action needed

enable `rust_2018_idioms` lint group for doctests #106621

enable `rust_2018_idioms` lint group for doctests #106621

onur-ozkan commented Jan 9, 2023 •

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