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Further cleanup cfgs in the UI test suite #123702

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Apr 10, 2024
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Further cleanup cfgs in the UI test suite #123702

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26 changes: 13 additions & 13 deletions tests/ui/conditional-compilation/cfg-generic-params.rs
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@@ -1,36 +1,36 @@
//@ compile-flags:--cfg yes

fn f_lt<#[cfg(yes)] 'a: 'a, #[cfg(no)] T>() {}
fn f_ty<#[cfg(no)] 'a: 'a, #[cfg(yes)] T>() {}
fn f_lt<#[cfg(yes)] 'a: 'a, #[cfg(FALSE)] T>() {}
fn f_ty<#[cfg(FALSE)] 'a: 'a, #[cfg(yes)] T>() {}

type FnGood = for<#[cfg(yes)] 'a, #[cfg(no)] T> fn(); // OK
type FnBad = for<#[cfg(no)] 'a, #[cfg(yes)] T> fn();
type FnGood = for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> fn(); // OK
type FnBad = for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> fn();
//~^ ERROR only lifetime parameters can be used in this context

type PolyGood = dyn for<#[cfg(yes)] 'a, #[cfg(no)] T> Copy; // OK
type PolyBad = dyn for<#[cfg(no)] 'a, #[cfg(yes)] T> Copy;
type PolyGood = dyn for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> Copy; // OK
type PolyBad = dyn for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> Copy;
//~^ ERROR only lifetime parameters can be used in this context

struct WhereGood where for<#[cfg(yes)] 'a, #[cfg(no)] T> u8: Copy; // OK
struct WhereBad where for<#[cfg(no)] 'a, #[cfg(yes)] T> u8: Copy;
struct WhereGood where for<#[cfg(yes)] 'a, #[cfg(FALSE)] T> u8: Copy; // OK
struct WhereBad where for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> u8: Copy;
//~^ ERROR only lifetime parameters can be used in this context

fn f_lt_no<#[cfg_attr(no, unknown)] 'a>() {} // OK
fn f_lt_no<#[cfg_attr(FALSE, unknown)] 'a>() {} // OK
fn f_lt_yes<#[cfg_attr(yes, unknown)] 'a>() {}
//~^ ERROR cannot find attribute `unknown` in this scope
fn f_ty_no<#[cfg_attr(no, unknown)] T>() {} // OK
fn f_ty_no<#[cfg_attr(FALSE, unknown)] T>() {} // OK
fn f_ty_yes<#[cfg_attr(yes, unknown)] T>() {}
//~^ ERROR cannot find attribute `unknown` in this scope

type FnNo = for<#[cfg_attr(no, unknown)] 'a> fn(); // OK
type FnNo = for<#[cfg_attr(FALSE, unknown)] 'a> fn(); // OK
type FnYes = for<#[cfg_attr(yes, unknown)] 'a> fn();
//~^ ERROR cannot find attribute `unknown` in this scope

type PolyNo = dyn for<#[cfg_attr(no, unknown)] 'a> Copy; // OK
type PolyNo = dyn for<#[cfg_attr(FALSE, unknown)] 'a> Copy; // OK
type PolyYes = dyn for<#[cfg_attr(yes, unknown)] 'a> Copy;
//~^ ERROR cannot find attribute `unknown` in this scope

struct WhereNo where for<#[cfg_attr(no, unknown)] 'a> u8: Copy; // OK
struct WhereNo where for<#[cfg_attr(FALSE, unknown)] 'a> u8: Copy; // OK
struct WhereYes where for<#[cfg_attr(yes, unknown)] 'a> u8: Copy;
//~^ ERROR cannot find attribute `unknown` in this scope

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18 changes: 9 additions & 9 deletions tests/ui/conditional-compilation/cfg-generic-params.stderr
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Expand Up @@ -29,30 +29,30 @@ LL | struct WhereYes where for<#[cfg_attr(yes, unknown)] 'a> u8: Copy;
| ^^^^^^^

error[E0658]: only lifetime parameters can be used in this context
--> $DIR/cfg-generic-params.rs:7:45
--> $DIR/cfg-generic-params.rs:7:48
|
LL | type FnBad = for<#[cfg(no)] 'a, #[cfg(yes)] T> fn();
| ^
LL | type FnBad = for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> fn();
| ^
|
= note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information
= help: add `#![feature(non_lifetime_binders)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: only lifetime parameters can be used in this context
--> $DIR/cfg-generic-params.rs:11:51
--> $DIR/cfg-generic-params.rs:11:54
|
LL | type PolyBad = dyn for<#[cfg(no)] 'a, #[cfg(yes)] T> Copy;
| ^
LL | type PolyBad = dyn for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> Copy;
| ^
|
= note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information
= help: add `#![feature(non_lifetime_binders)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: only lifetime parameters can be used in this context
--> $DIR/cfg-generic-params.rs:15:54
--> $DIR/cfg-generic-params.rs:15:57
|
LL | struct WhereBad where for<#[cfg(no)] 'a, #[cfg(yes)] T> u8: Copy;
| ^
LL | struct WhereBad where for<#[cfg(FALSE)] 'a, #[cfg(yes)] T> u8: Copy;
| ^
|
= note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information
= help: add `#![feature(non_lifetime_binders)]` to the crate attributes to enable
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4 changes: 2 additions & 2 deletions tests/ui/const-generics/const-arg-in-const-arg.rs
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Expand Up @@ -2,8 +2,8 @@
// we use a single revision because this should have a `full` revision
// but right now that ICEs and I(@BoxyUwU) could not get stderr normalization to work

#![cfg_attr(full, feature(generic_const_exprs))]
#![cfg_attr(full, allow(incomplete_features))]
// #![cfg_attr(full, feature(generic_const_exprs))]
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Probably remove these instead of commenting them out? Here and in another file.

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@jieyouxu jieyouxu Apr 9, 2024 •
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I'm fine either way, I can see the justification for leaving them in because they should work but they don't because of currently unresolved bugs and limitations.

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I prefer to let them since they are supposed to be used and will potentially to be used in future but aren't due to bugs and limitations.

In particular if you look at the top of this file you can see a lengthy explanation of why there is currently no "full" revision (spoiler: ICE messed up things).

// #![cfg_attr(full, allow(incomplete_features))]

const fn foo<T>() -> usize { std::mem::size_of::<T>() }
const fn bar<const N: usize>() -> usize { N }
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4 changes: 2 additions & 2 deletions tests/ui/feature-gates/feature-gate-yeet_expr-in-cfg.rs
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@@ -1,15 +1,15 @@
//@ compile-flags: --edition 2021

pub fn demo() -> Option<i32> {
#[cfg(nope)]
#[cfg(FALSE)]
{
do yeet //~ ERROR `do yeet` expression is experimental
}

Some(1)
}

#[cfg(nope)]
#[cfg(FALSE)]
pub fn alternative() -> Result<(), String> {
do yeet "hello"; //~ ERROR `do yeet` expression is experimental
}
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6 changes: 2 additions & 4 deletions tests/ui/proc-macro/derive-helper-configured.rs
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@@ -1,17 +1,15 @@
// Derive helpers are resolved successfully inside `cfg_attr`.

//@ check-pass
// compile-flats:--cfg TRUE
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lol

//@ aux-build:test-macros.rs

#[macro_use]
extern crate test_macros;

#[cfg_attr(TRUE, empty_helper)]
#[derive(Empty)]
#[cfg_attr(TRUE, empty_helper)]
#[cfg_attr(all(), empty_helper)]
struct S {
#[cfg_attr(TRUE, empty_helper)]
#[cfg_attr(all(), empty_helper)]
field: u8,
}

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2 changes: 1 addition & 1 deletion tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2.rs
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@@ -1,7 +1,7 @@
//@ known-bug: #110395
#![feature(const_trait_impl)]
#![feature(const_mut_refs)]
#![cfg_attr(precise, feature(const_precise_live_drops))]
// #![cfg_attr(precise, feature(const_precise_live_drops))]

use std::marker::{Destruct, PhantomData};

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2 changes: 1 addition & 1 deletion tests/ui/rust-2018/issue-54400-unused-extern-crate-attr-span.fixed
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@@ -1,6 +1,6 @@
//@ aux-build:edition-lint-paths.rs
//@ run-rustfix
//@ compile-flags:--extern edition_lint_paths --cfg blandiloquence
//@ compile-flags:--extern edition_lint_paths
//@ edition:2018

#![deny(rust_2018_idioms)]
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4 changes: 2 additions & 2 deletions tests/ui/rust-2018/issue-54400-unused-extern-crate-attr-span.rs
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@@ -1,14 +1,14 @@
//@ aux-build:edition-lint-paths.rs
//@ run-rustfix
//@ compile-flags:--extern edition_lint_paths --cfg blandiloquence
//@ compile-flags:--extern edition_lint_paths
//@ edition:2018

#![deny(rust_2018_idioms)]
#![allow(dead_code)]

// The suggestion span should include the attribute.

#[cfg(blandiloquence)] //~ HELP remove it
#[cfg(not(FALSE))] //~ HELP remove it
extern crate edition_lint_paths;
//~^ ERROR unused extern crate

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2 changes: 1 addition & 1 deletion tests/ui/rust-2018/issue-54400-unused-extern-crate-attr-span.stderr
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@@ -1,7 +1,7 @@
error: unused extern crate
--> $DIR/issue-54400-unused-extern-crate-attr-span.rs:12:1
|
LL | / #[cfg(blandiloquence)]
LL | / #[cfg(not(FALSE))]
LL | | extern crate edition_lint_paths;
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
| |________________________________|
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