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Be more specific about constructor FnDef
s in type mismatch
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parent
b22c152958
commit
ede5c31af4
@ -2,10 +2,10 @@ use crate::traits::{ObligationCause, ObligationCauseCode};
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use crate::ty::diagnostics::suggest_constraining_type_param;
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use crate::ty::print::{with_forced_trimmed_paths, FmtPrinter, Printer};
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use crate::ty::{self, BoundRegionKind, Region, Ty, TyCtxt};
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use hir::def::DefKind;
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use rustc_errors::Applicability::{MachineApplicable, MaybeIncorrect};
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use rustc_errors::{pluralize, Diagnostic, MultiSpan};
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use rustc_hir as hir;
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use rustc_hir::def::{CtorOf, DefKind};
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use rustc_hir::def_id::DefId;
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use rustc_span::symbol::{sym, Symbol};
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use rustc_span::{BytePos, Span};
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@ -319,7 +319,11 @@ impl<'tcx> Ty<'tcx> {
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.into()
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}
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}
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ty::FnDef(..) => "fn item".into(),
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ty::FnDef(def_id, ..) => match tcx.def_kind(def_id) {
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DefKind::Ctor(CtorOf::Struct, _) => "struct constructor".into(),
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DefKind::Ctor(CtorOf::Variant, _) => "enum constructor".into(),
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_ => "fn item".into(),
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},
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ty::FnPtr(_) => "fn pointer".into(),
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ty::Dynamic(ref inner, ..) if let Some(principal) = inner.principal() => {
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format!("trait object `dyn {}`", tcx.def_path_str(principal.def_id())).into()
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@ -366,7 +370,11 @@ impl<'tcx> Ty<'tcx> {
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_ => "reference",
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}
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.into(),
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ty::FnDef(..) => "fn item".into(),
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ty::FnDef(def_id, ..) => match tcx.def_kind(def_id) {
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DefKind::Ctor(CtorOf::Struct, _) => "struct constructor".into(),
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DefKind::Ctor(CtorOf::Variant, _) => "enum constructor".into(),
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_ => "fn item".into(),
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},
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ty::FnPtr(_) => "fn pointer".into(),
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ty::Dynamic(..) => "trait object".into(),
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ty::Closure(..) => "closure".into(),
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@ -5,12 +5,12 @@ LL | struct Foo(u32);
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| ---------- fn(u32) -> Foo {Foo} defined here
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LL |
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LL | fn test() -> Foo { Foo }
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| --- ^^^ expected struct `Foo`, found fn item
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| --- ^^^ expected struct `Foo`, found struct constructor
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| |
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| expected `Foo` because of return type
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= note: expected struct `Foo`
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found fn item `fn(u32) -> Foo {Foo}`
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= note: expected struct `Foo`
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found struct constructor `fn(u32) -> Foo {Foo}`
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help: use parentheses to construct this tuple struct
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LL | fn test() -> Foo { Foo(/* u32 */) }
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@ -267,12 +267,12 @@ LL | Fn(u8),
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| -- fn(u8) -> Z {Z::Fn} defined here
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...
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LL | let _: Z = Z::Fn;
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| - ^^^^^ expected enum `Z`, found fn item
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| - ^^^^^ expected enum `Z`, found enum constructor
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| |
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| expected due to this
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= note: expected enum `Z`
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found fn item `fn(u8) -> Z {Z::Fn}`
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= note: expected enum `Z`
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found enum constructor `fn(u8) -> Z {Z::Fn}`
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help: use parentheses to construct this tuple variant
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LL | let _: Z = Z::Fn(/* u8 */);
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@ -308,12 +308,12 @@ LL | Fn(u8),
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| -- fn(u8) -> E {E::Fn} defined here
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...
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LL | let _: E = m::E::Fn;
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| - ^^^^^^^^ expected enum `E`, found fn item
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| - ^^^^^^^^ expected enum `E`, found enum constructor
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| |
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| expected due to this
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= note: expected enum `E`
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found fn item `fn(u8) -> E {E::Fn}`
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= note: expected enum `E`
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found enum constructor `fn(u8) -> E {E::Fn}`
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help: use parentheses to construct this tuple variant
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LL | let _: E = m::E::Fn(/* u8 */);
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@ -349,12 +349,12 @@ LL | Fn(u8),
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| -- fn(u8) -> E {E::Fn} defined here
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...
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LL | let _: E = E::Fn;
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| - ^^^^^ expected enum `E`, found fn item
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| - ^^^^^ expected enum `E`, found enum constructor
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| |
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| expected due to this
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= note: expected enum `E`
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found fn item `fn(u8) -> E {E::Fn}`
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= note: expected enum `E`
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found enum constructor `fn(u8) -> E {E::Fn}`
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help: use parentheses to construct this tuple variant
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LL | let _: E = E::Fn(/* u8 */);
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@ -23,12 +23,12 @@ LL | struct S(usize, usize);
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| -------- fn(usize, usize) -> S {S} defined here
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...
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LL | let _: S = S;
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| - ^ expected struct `S`, found fn item
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| - ^ expected struct `S`, found struct constructor
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| |
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| expected due to this
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= note: expected struct `S`
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found fn item `fn(usize, usize) -> S {S}`
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= note: expected struct `S`
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found struct constructor `fn(usize, usize) -> S {S}`
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help: use parentheses to construct this tuple struct
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LL | let _: S = S(/* usize */, /* usize */);
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@ -59,12 +59,12 @@ LL | struct V();
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| -------- fn() -> V {V} defined here
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...
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LL | let _: V = V;
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| - ^ expected struct `V`, found fn item
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| - ^ expected struct `V`, found struct constructor
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| |
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| expected due to this
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= note: expected struct `V`
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found fn item `fn() -> V {V}`
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= note: expected struct `V`
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found struct constructor `fn() -> V {V}`
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help: use parentheses to construct this tuple struct
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LL | let _: V = V();
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@ -113,12 +113,12 @@ LL | A(usize),
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| - fn(usize) -> E {E::A} defined here
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...
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LL | let _: E = E::A;
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| - ^^^^ expected enum `E`, found fn item
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| - ^^^^ expected enum `E`, found enum constructor
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| |
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| expected due to this
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= note: expected enum `E`
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found fn item `fn(usize) -> E {E::A}`
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= note: expected enum `E`
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found enum constructor `fn(usize) -> E {E::A}`
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help: use parentheses to construct this tuple variant
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LL | let _: E = E::A(/* usize */);
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@ -10,5 +10,5 @@ impl Foo {
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fn main() {
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let thing = Bar { bar: Foo };
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thing.bar.foo();
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//~^ ERROR no method named `foo` found for fn item `fn() -> Foo {Foo}` in the current scope [E0599]
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//~^ ERROR no method named `foo` found for struct constructor `fn() -> Foo {Foo}` in the current scope [E0599]
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}
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@ -1,4 +1,4 @@
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error[E0599]: no method named `foo` found for fn item `fn() -> Foo {Foo}` in the current scope
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error[E0599]: no method named `foo` found for struct constructor `fn() -> Foo {Foo}` in the current scope
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--> $DIR/empty-tuple-method.rs:12:15
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LL | thing.bar.foo();
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@ -12,5 +12,5 @@ impl Foo {
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fn main() {
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let thing = Bar { bar: Foo::Tup };
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thing.bar.foo();
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//~^ ERROR no method named `foo` found for fn item `fn() -> Foo {Foo::Tup}` in the current scope [E0599]
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//~^ ERROR no method named `foo` found for enum constructor `fn() -> Foo {Foo::Tup}` in the current scope [E0599]
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}
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@ -1,4 +1,4 @@
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error[E0599]: no method named `foo` found for fn item `fn() -> Foo {Foo::Tup}` in the current scope
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error[E0599]: no method named `foo` found for enum constructor `fn() -> Foo {Foo::Tup}` in the current scope
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--> $DIR/enum-variant.rs:14:15
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LL | thing.bar.foo();
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@ -10,5 +10,5 @@ impl Foo {
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fn main() {
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let thing = Bar { bar: Foo };
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thing.bar.foo();
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//~^ ERROR no method named `foo` found for fn item `fn(u8, i32) -> Foo {Foo}` in the current scope [E0599]
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//~^ ERROR no method named `foo` found for struct constructor `fn(u8, i32) -> Foo {Foo}` in the current scope [E0599]
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}
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@ -1,4 +1,4 @@
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error[E0599]: no method named `foo` found for fn item `fn(u8, i32) -> Foo {Foo}` in the current scope
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error[E0599]: no method named `foo` found for struct constructor `fn(u8, i32) -> Foo {Foo}` in the current scope
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--> $DIR/tuple-method.rs:12:15
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LL | thing.bar.foo();
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@ -1,4 +1,4 @@
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error[E0599]: no method named `nonexistent_method` found for fn item `fn(_) -> Option<_> {Option::<_>::Some}` in the current scope
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error[E0599]: no method named `nonexistent_method` found for enum constructor `fn(_) -> Option<_> {Option::<_>::Some}` in the current scope
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--> $DIR/issue-96738.rs:2:10
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LL | Some.nonexistent_method();
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