Don't print "const" keyword on non-nightly build if rustc_const_unstable is used on the item

[GuillaumeGomez]

Fixes #74579.

[rust-highfive]

r? @ollie27

(rust_highfive has picked a reviewer for you, use r? to override)

[ollie27]

is_min_const_fn already checks for rustc_const_unstable. The issue in #74579 is that rustdoc isn't calling is_min_const_fn for methods from the current crate. That should probably happen around

rust/src/librustdoc/clean/mod.rs

Line 883 in 2186722

Method { decl, generics, header: self.0.header, defaultness: self.3, all_types, ret_types }

overriding the constness field of header like is done elsewhere.

[GuillaumeGomez]

In the places I added my own check. Great! Just need to update the code I already wrote then. Thanks a lot for the pointer @ollie27 !

[GuillaumeGomez]

Updated!

[ollie27]

Looks good. Just needs some tests like src/test/rustdoc/const-display.rs but for methods.

[GuillaumeGomez]

Added the test.

[GuillaumeGomez]

ping @rust-lang/rustdoc

[jyn514]

Test looks good to me, trusting Ollie's review for the code changes.

@bors r+

[bors]

📌 Commit 2a281e0 has been approved by jyn514

[bors]

⌛ Testing commit 2a281e0 with merge 1275cc1...

[bors]

☀️ Test successful - checks-actions, checks-azure
Approved by: jyn514
Pushing 1275cc1 to master...