bors 009e73825a Auto merge of #129936 - matthiaskrgr:rollup-0s8xycb, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - #127692 (Suggest `impl Trait` for References to Bare Trait in Function Header)
 - #128701 (Don't Suggest Labeling `const` and `unsafe` Blocks )
 - #128934 (Non-exhaustive structs may be empty)
 - #129630 (Document the broken C ABI of `wasm32-unknown-unknown`)
 - #129863 (update comment regarding TargetOptions.features)
 - #129896 (do not attempt to prove unknowable goals)
 - #129926 (Move `SanityCheck` and `MirPass`)
 - #129928 (rustc_driver_impl: remove some old dead logic)
 - #129930 (include 1.80.1 release notes on master)

r? `@ghost`
`@rustbot` modify labels: rollup
2024-09-04 22:58:51 +00:00
..
2024-08-28 23:32:40 +01:00
2024-08-28 23:32:40 +01:00
2024-09-02 21:16:37 +02:00
2024-09-03 14:36:21 +02:00

UI Tests

This folder contains rustc's UI tests.

Test Directives (Headers)

Typically, a UI test will have some test directives / headers which are special comments that tell compiletest how to build and intepret a test.

As part of an on-going effort to rewrite compiletest (see https://github.com/rust-lang/compiler-team/issues/536), a major change proposal to change legacy compiletest-style headers // <directive> to ui_test-style headers //@ <directive> was accepted (see https://github.com/rust-lang/compiler-team/issues/512.

An example directive is ignore-test. In legacy compiletest style, the header would be written as

// ignore-test

but in ui_test style, the header would be written as

//@ ignore-test

compiletest is changed to accept only //@ directives for UI tests (currently), and will reject and report an error if it encounters any comments // <content> that may be parsed as an legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.