hir::Path { segments: [segment], .. },
))
| hir::ExprKind::Path(QPath::TypeRelative(ty, segment)) => {
- let self_ty = self.astconv().ast_ty_to_ty(ty);
- if let Ok(pick) = self.probe_for_name(
- Mode::Path,
- Ident::new(capitalized_name, segment.ident.span),
- Some(expected_ty),
- IsSuggestion(true),
- self_ty,
- expr.hir_id,
- ProbeScope::TraitsInScope,
- ) {
+ if let Some(self_ty) = self.typeck_results.borrow().node_type_opt(ty.hir_id)
+ && let Ok(pick) = self.probe_for_name(
+ Mode::Path,
+ Ident::new(capitalized_name, segment.ident.span),
+ Some(expected_ty),
+ IsSuggestion(true),
+ self_ty,
+ expr.hir_id,
+ ProbeScope::TraitsInScope,
+ )
+ {
(pick.item, segment)
} else {
return false;
--- /dev/null
+// edition: 2021
+
+use std::collections::HashMap;
+use std::future::Future;
+use std::pin::Pin;
+
+pub trait Trait {
+ fn do_something<'async_trait>(byte: u8)
+ ->
+ Pin<Box<dyn Future<Output = ()> +
+ Send + 'async_trait>>;
+}
+
+pub struct Struct;
+
+impl Trait for Struct {
+ fn do_something<'async_trait>(byte: u8)
+ ->
+ Pin<Box<dyn Future<Output = ()> +
+ Send + 'async_trait>> {
+ Box::pin(
+
+ async move { let byte = byte; let _: () = {}; })
+ }
+}
+
+pub struct Map {
+ map: HashMap<u16, fn(u8) -> Pin<Box<dyn Future<Output = ()> + Send>>>,
+}
+
+impl Map {
+ pub fn new() -> Self {
+ let mut map = HashMap::new();
+ map.insert(1, Struct::do_something);
+ Self { map }
+ //~^ ERROR mismatched types
+ }
+}
+
+fn main() {}
--- /dev/null
+error[E0308]: mismatched types
+ --> $DIR/issue-107775.rs:35:16
+ |
+LL | map.insert(1, Struct::do_something);
+ | - -------------------- this is of type `fn(u8) -> Pin<Box<dyn Future<Output = ()> + Send>> {<Struct as Trait>::do_something::<'_>}`, which causes `map` to be inferred as `HashMap<{integer}, fn(u8) -> Pin<Box<dyn Future<Output = ()> + Send>> {<Struct as Trait>::do_something::<'_>}>`
+ | |
+ | this is of type `{integer}`, which causes `map` to be inferred as `HashMap<{integer}, fn(u8) -> Pin<Box<dyn Future<Output = ()> + Send>> {<Struct as Trait>::do_something::<'_>}>`
+LL | Self { map }
+ | ^^^ expected `HashMap<u16, fn(u8) -> Pin<...>>`, found `HashMap<{integer}, ...>`
+ |
+ = note: expected struct `HashMap<u16, fn(_) -> Pin<Box<(dyn Future<Output = ()> + Send + 'static)>>>`
+ found struct `HashMap<{integer}, fn(_) -> Pin<Box<dyn Future<Output = ()> + Send>> {<Struct as Trait>::do_something::<'_>}>`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.