diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 2ade6964ca89e..048c2fb4e6767 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -4189,6 +4189,7 @@ declare_lint! { reason: FutureIncompatibilityReason::FutureReleaseSemanticsChange, reference: "issue #123748 ", }; + @edition Edition2024 => Deny; report_in_external_macro } diff --git a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.stderr b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr similarity index 86% rename from tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.stderr rename to tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr index fbd92f8f662bb..a75039b8237a0 100644 --- a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.stderr +++ b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2015.stderr @@ -1,5 +1,5 @@ warning: never type fallback affects this call to an `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:8:18 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:13:18 | LL | unsafe { mem::zeroed() } | ^^^^^^^^^^^^^ @@ -10,7 +10,7 @@ LL | unsafe { mem::zeroed() } = note: `#[warn(never_type_fallback_flowing_into_unsafe)]` on by default warning: never type fallback affects this call to an `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:23:13 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:30:13 | LL | core::mem::transmute(Zst) | ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -20,7 +20,7 @@ LL | core::mem::transmute(Zst) = help: specify the type explicitly warning: never type fallback affects this union access - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:39:18 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:47:18 | LL | unsafe { Union { a: () }.b } | ^^^^^^^^^^^^^^^^^ @@ -30,7 +30,7 @@ LL | unsafe { Union { a: () }.b } = help: specify the type explicitly warning: never type fallback affects this raw pointer dereference - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:49:18 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:58:18 | LL | unsafe { *ptr::from_ref(&()).cast() } | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -40,7 +40,7 @@ LL | unsafe { *ptr::from_ref(&()).cast() } = help: specify the type explicitly warning: never type fallback affects this call to an `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:67:18 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:79:18 | LL | unsafe { internally_create(x) } | ^^^^^^^^^^^^^^^^^^^^ @@ -50,7 +50,7 @@ LL | unsafe { internally_create(x) } = help: specify the type explicitly warning: never type fallback affects this call to an `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:83:18 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:97:18 | LL | unsafe { zeroed() } | ^^^^^^^^ @@ -60,7 +60,7 @@ LL | unsafe { zeroed() } = help: specify the type explicitly warning: never type fallback affects this `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:79:22 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:92:22 | LL | let zeroed = mem::zeroed; | ^^^^^^^^^^^ @@ -70,7 +70,7 @@ LL | let zeroed = mem::zeroed; = help: specify the type explicitly warning: never type fallback affects this `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:98:17 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:115:17 | LL | let f = internally_create; | ^^^^^^^^^^^^^^^^^ @@ -80,7 +80,7 @@ LL | let f = internally_create; = help: specify the type explicitly warning: never type fallback affects this call to an `unsafe` method - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:122:13 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:140:13 | LL | S(marker::PhantomData).create_out_of_thin_air() | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -90,7 +90,7 @@ LL | S(marker::PhantomData).create_out_of_thin_air() = help: specify the type explicitly warning: never type fallback affects this call to an `unsafe` function - --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:139:19 + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:158:19 | LL | match send_message::<_ /* ?0 */>() { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr new file mode 100644 index 0000000000000..4138e9f8c8622 --- /dev/null +++ b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.e2024.stderr @@ -0,0 +1,116 @@ +error: never type fallback affects this call to an `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:13:18 + | +LL | unsafe { mem::zeroed() } + | ^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + = note: `#[deny(never_type_fallback_flowing_into_unsafe)]` on by default + +error: never type fallback affects this call to an `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:30:13 + | +LL | core::mem::transmute(Zst) + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this union access + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:47:18 + | +LL | unsafe { Union { a: () }.b } + | ^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this raw pointer dereference + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:58:18 + | +LL | unsafe { *ptr::from_ref(&()).cast() } + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this call to an `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:79:18 + | +LL | unsafe { internally_create(x) } + | ^^^^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this call to an `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:97:18 + | +LL | unsafe { zeroed() } + | ^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:92:22 + | +LL | let zeroed = mem::zeroed; + | ^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:115:17 + | +LL | let f = internally_create; + | ^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this call to an `unsafe` method + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:140:13 + | +LL | S(marker::PhantomData).create_out_of_thin_air() + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + +error: never type fallback affects this call to an `unsafe` function + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:158:19 + | +LL | match send_message::<_ /* ?0 */>() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +... +LL | msg_send!(); + | ----------- in this macro invocation + | + = warning: this will change its meaning in a future release! + = note: for more information, see issue #123748 + = help: specify the type explicitly + = note: this error originates in the macro `msg_send` (in Nightly builds, run with -Z macro-backtrace for more info) + +warning: the type `!` does not permit zero-initialization + --> $DIR/lint-never-type-fallback-flowing-into-unsafe.rs:13:18 + | +LL | unsafe { mem::zeroed() } + | ^^^^^^^^^^^^^ this code causes undefined behavior when executed + | + = note: the `!` type has no valid value + = note: `#[warn(invalid_value)]` on by default + +error: aborting due to 10 previous errors; 1 warning emitted + diff --git a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.rs b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.rs index d65bfee843e3e..c96f4dda3f8ef 100644 --- a/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.rs +++ b/tests/ui/never_type/lint-never-type-fallback-flowing-into-unsafe.rs @@ -1,4 +1,9 @@ -//@ check-pass +//@ revisions: e2015 e2024 +//@[e2015] check-pass +//@[e2024] check-fail +//@[e2024] edition:2024 +//@[e2024] compile-flags: -Zunstable-options + use std::{marker, mem, ptr}; fn main() {} @@ -6,8 +11,10 @@ fn main() {} fn _zero() { if false { unsafe { mem::zeroed() } - //~^ warn: never type fallback affects this call to an `unsafe` function + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` function + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` function //~| warn: this will change its meaning in a future release! + //[e2024]~| warning: the type `!` does not permit zero-initialization } else { return; }; @@ -21,7 +28,8 @@ fn _trans() { unsafe { struct Zst; core::mem::transmute(Zst) - //~^ warn: never type fallback affects this call to an `unsafe` function + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` function + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` function //~| warn: this will change its meaning in a future release! } } else { @@ -37,7 +45,8 @@ fn _union() { } unsafe { Union { a: () }.b } - //~^ warn: never type fallback affects this union access + //[e2015]~^ warn: never type fallback affects this union access + //[e2024]~^^ error: never type fallback affects this union access //~| warn: this will change its meaning in a future release! } else { return; @@ -47,7 +56,8 @@ fn _union() { fn _deref() { if false { unsafe { *ptr::from_ref(&()).cast() } - //~^ warn: never type fallback affects this raw pointer dereference + //[e2015]~^ warn: never type fallback affects this raw pointer dereference + //[e2024]~^^ error: never type fallback affects this raw pointer dereference //~| warn: this will change its meaning in a future release! } else { return; @@ -57,7 +67,9 @@ fn _deref() { fn _only_generics() { if false { unsafe fn internally_create(_: Option) { - let _ = mem::zeroed::(); + unsafe { + let _ = mem::zeroed::(); + } } // We need the option (and unwrap later) to call a function in a way, @@ -65,7 +77,8 @@ fn _only_generics() { let x = None; unsafe { internally_create(x) } - //~^ warn: never type fallback affects this call to an `unsafe` function + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` function + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` function //~| warn: this will change its meaning in a future release! x.unwrap() @@ -77,11 +90,13 @@ fn _only_generics() { fn _stored_function() { if false { let zeroed = mem::zeroed; - //~^ warn: never type fallback affects this `unsafe` function + //[e2015]~^ warn: never type fallback affects this `unsafe` function + //[e2024]~^^ error: never type fallback affects this `unsafe` function //~| warn: this will change its meaning in a future release! unsafe { zeroed() } - //~^ warn: never type fallback affects this call to an `unsafe` function + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` function + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` function //~| warn: this will change its meaning in a future release! } else { return; @@ -91,12 +106,15 @@ fn _stored_function() { fn _only_generics_stored_function() { if false { unsafe fn internally_create(_: Option) { - let _ = mem::zeroed::(); + unsafe { + let _ = mem::zeroed::(); + } } let x = None; let f = internally_create; - //~^ warn: never type fallback affects this `unsafe` function + //[e2015]~^ warn: never type fallback affects this `unsafe` function + //[e2024]~^^ error: never type fallback affects this `unsafe` function //~| warn: this will change its meaning in a future release! unsafe { f(x) } @@ -120,7 +138,8 @@ fn _method() { if false { unsafe { S(marker::PhantomData).create_out_of_thin_air() - //~^ warn: never type fallback affects this call to an `unsafe` method + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` method + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` method //~| warn: this will change its meaning in a future release! } } else { @@ -137,7 +156,8 @@ fn _objc() { macro_rules! msg_send { () => { match send_message::<_ /* ?0 */>() { - //~^ warn: never type fallback affects this call to an `unsafe` function + //[e2015]~^ warn: never type fallback affects this call to an `unsafe` function + //[e2024]~^^ error: never type fallback affects this call to an `unsafe` function //~| warn: this will change its meaning in a future release! Ok(x) => x, Err(_) => loop {},