check macro statements in non_copy_const.rs

This commit is contained in:
kyoto7250 2022-07-25 21:41:12 +09:00
parent 4a5b7e266a
commit 477356460b
4 changed files with 47 additions and 13 deletions

View file

@ -52,7 +52,7 @@ serde = { version = "1.0.125", features = ["derive"] }
syn = { version = "1.0", features = ["full"] }
futures = "0.3"
parking_lot = "0.12"
tokio = { version = "1", features = ["io-util"] }
tokio = { version = "1", features = ["full"] }
rustc-semver = "1.1"
[build-dependencies]

View file

@ -251,14 +251,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
fn check_item(&mut self, cx: &LateContext<'tcx>, it: &'tcx Item<'_>) {
if let ItemKind::Const(hir_ty, body_id) = it.kind {
let ty = hir_ty_to_ty(cx.tcx, hir_ty);
if !macro_backtrace(it.span).last().map_or(false, |macro_call| {
matches!(
cx.tcx.get_diagnostic_name(macro_call.def_id),
Some(sym::thread_local_macro)
)
}) && is_unfrozen(cx, ty)
&& is_value_unfrozen_poly(cx, body_id, ty)
{
if !ignored_macro(cx, it) && is_unfrozen(cx, ty) && is_value_unfrozen_poly(cx, body_id, ty) {
lint(cx, Source::Item { item: it.span });
}
}
@ -445,3 +438,12 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
}
}
}
fn ignored_macro(cx: &LateContext<'_>, it: &rustc_hir::Item<'_>) -> bool {
macro_backtrace(it.span).any(|macro_call| {
matches!(
cx.tcx.get_diagnostic_name(macro_call.def_id),
Some(sym::thread_local_macro)
)
})
}

View file

@ -31,9 +31,30 @@ const NO_ANN: &dyn Display = &70;
static STATIC_TUPLE: (AtomicUsize, String) = (ATOMIC, STRING);
//^ there should be no lints on this line
// issue #8493
thread_local! {
static THREAD_LOCAL: Cell<i32> = const { Cell::new(0) };
mod issue_8493 {
use std::cell::Cell;
// https://github.com/rust-lang/rust-clippy/issues/9224
tokio::task_local! {
pub static _FOO: String;
}
thread_local! {
static _BAR: Cell<i32> = const { Cell::new(0) };
}
macro_rules! issue_8493 {
() => {
const _BAZ: Cell<usize> = Cell::new(0); //~ ERROR interior mutable
static _FOOBAR: () = {
thread_local! {
static _VAR: Cell<i32> = const { Cell::new(0) };
}
};
};
}
issue_8493!();
}
fn main() {}

View file

@ -35,5 +35,16 @@ LL | declare_const!(_ONCE: Once = Once::new()); //~ ERROR interior mutable
|
= note: this error originates in the macro `declare_const` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 4 previous errors
error: a `const` item should never be interior mutable
--> $DIR/others.rs:48:13
|
LL | const _BAZ: Cell<usize> = Cell::new(0); //~ ERROR interior mutable
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...
LL | issue_8493!();
| ------------- in this macro invocation
|
= note: this error originates in the macro `issue_8493` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 5 previous errors