Matthias Krüger 1fd3ee0660
Rollup merge of #123066 - maurer:cfi-erased-lifetime-ice, r=compiler-errors
CFI: (actually) check that methods are object-safe before projecting their receivers to `dyn Trait` in CFI

`trait_object_ty` assumed that associated types would be fully determined by the trait. This is *almost* true - const parameters and type parameters are no longer allowed, but lifetime parameters are. Since we erase all lifetime parameters anyways, instantiate it with as many erased regions as it needs.

Fixes: #123053

r? `@compiler-errors`
2024-03-26 17:06:40 +01:00
..
2024-03-24 10:05:27 +01:00
2024-03-24 09:19:29 +01:00
2024-03-23 16:14:42 +01:00

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>.