diff --git a/compiler/rustc_typeck/src/check/upvar.rs b/compiler/rustc_typeck/src/check/upvar.rs index 0837d9c4a2024..87f85a9842f34 100644 --- a/compiler/rustc_typeck/src/check/upvar.rs +++ b/compiler/rustc_typeck/src/check/upvar.rs @@ -1707,12 +1707,14 @@ fn drop_location_span<'tcx>(tcx: TyCtxt<'tcx>, hir_id: hir::HirId) -> Span { hir::Node::Item(item) => match item.kind { hir::ItemKind::Fn(_, _, owner_id) => tcx.hir().span(owner_id.hir_id), _ => { - bug!("Drop location span error: need to handle more ItemKind {:?}", item.kind); + bug!("Drop location span error: need to handle more ItemKind '{:?}'", item.kind); } }, hir::Node::Block(block) => tcx.hir().span(block.hir_id), + hir::Node::TraitItem(item) => tcx.hir().span(item.hir_id()), + hir::Node::ImplItem(item) => tcx.hir().span(item.hir_id()), _ => { - bug!("Drop location span error: need to handle more Node {:?}", owner_node); + bug!("Drop location span error: need to handle more Node '{:?}'", owner_node); } }; tcx.sess.source_map().end_point(owner_span) diff --git a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs new file mode 100644 index 0000000000000..b280c8ab6e2b2 --- /dev/null +++ b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs @@ -0,0 +1,18 @@ +// compile-flags: -Wrust-2021-incompatible-closure-captures + +pub struct A {} + +impl A { + async fn create(path: impl AsRef) { //~ ERROR `async fn` is not permitted in Rust 2015 + //~^ WARN changes to closure capture in Rust 2021 will affect drop order [rust_2021_incompatible_closure_captures] + ; + crate(move || {} ).await //~ ERROR expected function, found module `crate` + } +} + +trait C{async fn new(val: T) {} //~ ERROR `async fn` is not permitted in Rust 2015 +//~^ ERROR functions in traits cannot be declared `async` +//~^^ ERROR cannot find type `T` in this scope +//~^^^ WARN changes to closure capture in Rust 2021 will affect drop order [rust_2021_incompatible_closure_captures] + +//~ ERROR this file contains an unclosed delimiter diff --git a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr new file mode 100644 index 0000000000000..50de2322907ed --- /dev/null +++ b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.stderr @@ -0,0 +1,93 @@ +error: this file contains an unclosed delimiter + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:18:53 + | +LL | trait C{async fn new(val: T) {} + | - unclosed delimiter +... +LL | + | ^ + +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:6:5 + | +LL | async fn create(path: impl AsRef) { + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:13:9 + | +LL | trait C{async fn new(val: T) {} + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0706]: functions in traits cannot be declared `async` + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:13:9 + | +LL | trait C{async fn new(val: T) {} + | -----^^^^^^^^^^^^^^^^^^ + | | + | `async` because of this + | + = note: `async` trait functions are not currently supported + = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait + +error[E0423]: expected function, found module `crate` + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:9:5 + | +LL | crate(move || {} ).await + | ^^^^^ not a function + +error[E0412]: cannot find type `T` in this scope + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:13:27 + | +LL | pub struct A {} + | ------------ similarly named struct `A` defined here +... +LL | trait C{async fn new(val: T) {} + | ^ help: a struct with a similar name exists: `A` + +warning: changes to closure capture in Rust 2021 will affect drop order + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:6:57 + | +LL | async fn create(path: impl AsRef) { + | _____________________----_____________________________-__^ + | | | | + | | | in Rust 2018, `path` is dropped here along with the closure, but in Rust 2021 `path` is not part of the closure + | | in Rust 2018, this causes the closure to capture `path`, but in Rust 2021, it has no effect +LL | | +LL | | ; +LL | | crate(move || {} ).await +LL | | } + | |_____^ + | + = note: requested on the command line with `-W rust-2021-incompatible-closure-captures` + = note: for more information, see +help: add a dummy let to cause `path` to be fully captured + | +LL | async fn create(path: impl AsRef) { let _ = &path; + | ++++++++++++++ + +warning: changes to closure capture in Rust 2021 will affect drop order + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-93117.rs:13:30 + | +LL | trait C{async fn new(val: T) {} + | --- - ^^ + | | | + | | in Rust 2018, `val` is dropped here along with the closure, but in Rust 2021 `val` is not part of the closure + | in Rust 2018, this causes the closure to capture `val`, but in Rust 2021, it has no effect + | + = note: for more information, see +help: add a dummy let to cause `val` to be fully captured + | +LL | trait C{async fn new(val: T) { let _ = &val;} + | +++++++++++++ + +error: aborting due to 6 previous errors; 2 warnings emitted + +Some errors have detailed explanations: E0412, E0423, E0670, E0706. +For more information about an error, try `rustc --explain E0412`. diff --git a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs new file mode 100644 index 0000000000000..a776e5089075c --- /dev/null +++ b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs @@ -0,0 +1,15 @@ +// compile-flags -Wrust-2021-incompatible-closure-captures + +fn main() {} + +pub(crate) struct Numberer {} + +impl Numberer { + pub(crate) async fn new( + //~^ ERROR `async fn` is not permitted in Rust 2015 + interval: Duration, + //~^ ERROR cannot find type `Duration` in this scope + ) -> Numberer { + Numberer {} + } +} diff --git a/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr new file mode 100644 index 0000000000000..37b2f4138603d --- /dev/null +++ b/src/test/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr @@ -0,0 +1,24 @@ +error[E0670]: `async fn` is not permitted in Rust 2015 + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs:8:16 + | +LL | pub(crate) async fn new( + | ^^^^^ to use `async fn`, switch to Rust 2018 or later + | + = help: pass `--edition 2021` to `rustc` + = note: for more on editions, read https://doc.rust-lang.org/edition-guide + +error[E0412]: cannot find type `Duration` in this scope + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs:10:19 + | +LL | interval: Duration, + | ^^^^^^^^ not found in this scope + | +help: consider importing this struct + | +LL | use std::time::Duration; + | + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0412, E0670. +For more information about an error, try `rustc --explain E0412`.