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Provide local extern function arg names
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@ -160,9 +160,13 @@ pub fn provide(providers: &mut Providers) {
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} else if let Node::TraitItem(&TraitItem {
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kind: TraitItemKind::Fn(_, TraitFn::Required(idents)),
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..
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})
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| Node::ForeignItem(&ForeignItem {
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kind: ForeignItemKind::Fn(_, idents, _),
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..
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}) = hir.get(hir_id)
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{
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tcx.arena.alloc_slice(idents)
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idents
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} else {
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span_bug!(hir.span(hir_id), "fn_arg_names: unexpected item {:?}", id);
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}
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9
src/test/ui/argument-suggestions/extern-fn-arg-names.rs
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9
src/test/ui/argument-suggestions/extern-fn-arg-names.rs
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@ -0,0 +1,9 @@
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extern "Rust" {
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fn dstfn(src: i32, dst: err);
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//~^ ERROR cannot find type `err` in this scope
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}
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fn main() {
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dstfn(1);
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//~^ ERROR this function takes 2 arguments but 1 argument was supplied
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}
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26
src/test/ui/argument-suggestions/extern-fn-arg-names.stderr
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26
src/test/ui/argument-suggestions/extern-fn-arg-names.stderr
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@ -0,0 +1,26 @@
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error[E0412]: cannot find type `err` in this scope
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--> $DIR/extern-fn-arg-names.rs:2:29
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LL | fn dstfn(src: i32, dst: err);
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| ^^^ not found in this scope
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error[E0061]: this function takes 2 arguments but 1 argument was supplied
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--> $DIR/extern-fn-arg-names.rs:7:5
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LL | dstfn(1);
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| ^^^^^--- an argument is missing
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note: function defined here
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--> $DIR/extern-fn-arg-names.rs:2:8
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LL | fn dstfn(src: i32, dst: err);
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| ^^^^^
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help: provide the argument
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LL | dstfn(1, /* dst */);
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| ~~~~~~~~~~~~~~
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0061, E0412.
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For more information about an error, try `rustc --explain E0061`.
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