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Continue compilation after check_mod_type_wf errors

This commit is contained in:
Oli Scherer 2024-02-09 12:17:55 +00:00
parent bb89df6903
commit 5f6390f947
212 changed files with 2715 additions and 284 deletions
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6
compiler/rustc_hir_analysis/src/lib.rs
View File

@ -187,8 +187,10 @@ pub fn check_crate(tcx: TyCtxt<'_>) -> Result<(), ErrorGuaranteed> {
}
tcx.sess.time("wf_checking", || {
tcx.hir().try_par_for_each_module(|module| tcx.ensure().check_mod_type_wf(module))
})?;
tcx.hir().par_for_each_module(|module| {
let _ = tcx.ensure().check_mod_type_wf(module);
})
});
if tcx.features().rustc_attrs {
collect::test_opaque_hidden_types(tcx)?;

9
compiler/rustc_hir_typeck/src/method/confirm.rs
View File

@ -518,12 +518,9 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
.report_mismatched_types(&cause, method_self_ty, self_ty, terr)
.emit();
} else {
span_bug!(
self.span,
"{} was a subtype of {} but now is not?",
self_ty,
method_self_ty
);
error!("{self_ty} was a subtype of {method_self_ty} but now is not?");
// This must already have errored elsewhere.
self.dcx().has_errors().unwrap();
}
}
}

13
compiler/rustc_mir_build/src/thir/cx/expr.rs
View File

@ -3,6 +3,7 @@ use crate::thir::cx::region::Scope;
use crate::thir::cx::Cx;
use crate::thir::util::UserAnnotatedTyHelpers;
use itertools::Itertools;
use rustc_ast::LitKind;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res};
@ -20,7 +21,8 @@ use rustc_middle::ty::GenericArgs;
use rustc_middle::ty::{
self, AdtKind, InlineConstArgs, InlineConstArgsParts, ScalarInt, Ty, UpvarArgs, UserType,
};
use rustc_span::{sym, Span};
use rustc_span::source_map::Spanned;
use rustc_span::{sym, Span, DUMMY_SP};
use rustc_target::abi::{FieldIdx, FIRST_VARIANT};
impl<'tcx> Cx<'tcx> {
@ -894,7 +896,14 @@ impl<'tcx> Cx<'tcx> {
Res::Def(DefKind::ConstParam, def_id) => {
let hir_id = self.tcx.local_def_id_to_hir_id(def_id.expect_local());
let generics = self.tcx.generics_of(hir_id.owner);
let index = generics.param_def_id_to_index[&def_id];
let Some(&index) = generics.param_def_id_to_index.get(&def_id) else {
self.tcx.dcx().has_errors().unwrap();
// We already errored about a late bound const
return ExprKind::Literal {
lit: &Spanned { span: DUMMY_SP, node: LitKind::Err },
neg: false,
};
};
let name = self.tcx.hir().name(hir_id);
let param = ty::ParamConst::new(index, name);

5
compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs
View File

@ -3112,10 +3112,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
obligation.param_env,
trait_ref.args.const_at(3),
) else {
span_bug!(
self.dcx().span_delayed_bug(
span,
"Unable to construct rustc_transmute::Assume where it was previously possible"
"Unable to construct rustc_transmute::Assume where it was previously possible",
);
return GetSafeTransmuteErrorAndReason::Silent;
};
match rustc_transmute::TransmuteTypeEnv::new(self.infcx).is_transmutable(

4
tests/ui/abi/issues/issue-22565-rust-call.rs
View File

@ -25,7 +25,11 @@ impl Tr for Foo {
fn main() {
b(10);
//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
Foo::bar();
//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
<Foo as Tr>::a();
//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
<Foo as Tr>::b();
//~^ ERROR functions with the "rust-call" ABI must take a single non-self tuple argument
}

26
tests/ui/abi/issues/issue-22565-rust-call.stderr
View File

@ -28,6 +28,30 @@ error: functions with the "rust-call" ABI must take a single non-self tuple argu
LL | extern "rust-call" fn b() {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 5 previous errors
error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
--> $DIR/issue-22565-rust-call.rs:27:7
|
LL | b(10);
| ^^ the trait `Tuple` is not implemented for `i32`
error: functions with the "rust-call" ABI must take a single non-self tuple argument
--> $DIR/issue-22565-rust-call.rs:29:5
|
LL | Foo::bar();
| ^^^^^^^^^^
error: functions with the "rust-call" ABI must take a single non-self tuple argument
--> $DIR/issue-22565-rust-call.rs:31:5
|
LL | <Foo as Tr>::a();
| ^^^^^^^^^^^^^^^^
error: functions with the "rust-call" ABI must take a single non-self tuple argument
--> $DIR/issue-22565-rust-call.rs:33:5
|
LL | <Foo as Tr>::b();
| ^^^^^^^^^^^^^^^^
error: aborting due to 9 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-consts/associated-const-in-trait.rs
View File

@ -7,6 +7,7 @@ trait Trait {
impl dyn Trait {
//~^ ERROR the trait `Trait` cannot be made into an object [E0038]
const fn n() -> usize { Self::N }
//~^ ERROR the trait `Trait` cannot be made into an object [E0038]
}
fn main() {}

17
tests/ui/associated-consts/associated-const-in-trait.stderr
View File

@ -13,6 +13,21 @@ LL | const N: usize;
| ^ ...because it contains this associated `const`
= help: consider moving `N` to another trait
error: aborting due to 1 previous error
error[E0038]: the trait `Trait` cannot be made into an object
--> $DIR/associated-const-in-trait.rs:9:29
|
LL | const fn n() -> usize { Self::N }
| ^^^^ `Trait` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/associated-const-in-trait.rs:4:11
|
LL | trait Trait {
| ----- this trait cannot be made into an object...
LL | const N: usize;
| ^ ...because it contains this associated `const`
= help: consider moving `N` to another trait
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0038`.

5
tests/ui/associated-consts/issue-105330.rs
View File

@ -10,10 +10,15 @@ impl TraitWAssocConst for impl Demo { //~ ERROR E0404
fn foo<A: TraitWAssocConst<A=32>>() { //~ ERROR E0658
foo::<Demo>()();
//~^ ERROR is not satisfied
//~| ERROR type mismatch
//~| ERROR expected function, found `()`
}
fn main<A: TraitWAssocConst<A=32>>() {
//~^ ERROR E0658
//~| ERROR E0131
foo::<Demo>();
//~^ ERROR type mismatch
//~| ERROR is not satisfied
}

72
tests/ui/associated-consts/issue-105330.stderr
View File

@ -26,7 +26,7 @@ LL | fn foo<A: TraitWAssocConst<A=32>>() {
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error[E0658]: associated const equality is incomplete
--> $DIR/issue-105330.rs:15:29
--> $DIR/issue-105330.rs:18:29
|
LL | fn main<A: TraitWAssocConst<A=32>>() {
| ^^^^
@ -44,12 +44,76 @@ LL | impl TraitWAssocConst for impl Demo {
= note: `impl Trait` is only allowed in arguments and return types of functions and methods
error[E0131]: `main` function is not allowed to have generic parameters
--> $DIR/issue-105330.rs:15:8
--> $DIR/issue-105330.rs:18:8
|
LL | fn main<A: TraitWAssocConst<A=32>>() {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` cannot have generic parameters
error: aborting due to 6 previous errors
error[E0277]: the trait bound `Demo: TraitWAssocConst` is not satisfied
--> $DIR/issue-105330.rs:12:11
|
LL | foo::<Demo>()();
| ^^^^ the trait `TraitWAssocConst` is not implemented for `Demo`
|
= help: the trait `TraitWAssocConst` is implemented for `{type error}`
note: required by a bound in `foo`
--> $DIR/issue-105330.rs:11:11
|
LL | fn foo<A: TraitWAssocConst<A=32>>() {
| ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `foo`
Some errors have detailed explanations: E0131, E0404, E0562, E0658.
error[E0271]: type mismatch resolving `<Demo as TraitWAssocConst>::A == 32`
--> $DIR/issue-105330.rs:12:11
|
LL | foo::<Demo>()();
| ^^^^ expected `32`, found `<Demo as TraitWAssocConst>::A`
|
= note: expected constant `32`
found constant `<Demo as TraitWAssocConst>::A`
note: required by a bound in `foo`
--> $DIR/issue-105330.rs:11:28
|
LL | fn foo<A: TraitWAssocConst<A=32>>() {
| ^^^^ required by this bound in `foo`
error[E0618]: expected function, found `()`
--> $DIR/issue-105330.rs:12:5
|
LL | fn foo<A: TraitWAssocConst<A=32>>() {
| ----------------------------------- `foo::<Demo>` defined here returns `()`
LL | foo::<Demo>()();
| ^^^^^^^^^^^^^--
| |
| call expression requires function
error[E0277]: the trait bound `Demo: TraitWAssocConst` is not satisfied
--> $DIR/issue-105330.rs:21:11
|
LL | foo::<Demo>();
| ^^^^ the trait `TraitWAssocConst` is not implemented for `Demo`
|
= help: the trait `TraitWAssocConst` is implemented for `{type error}`
note: required by a bound in `foo`
--> $DIR/issue-105330.rs:11:11
|
LL | fn foo<A: TraitWAssocConst<A=32>>() {
| ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `foo`
error[E0271]: type mismatch resolving `<Demo as TraitWAssocConst>::A == 32`
--> $DIR/issue-105330.rs:21:11
|
LL | foo::<Demo>();
| ^^^^ expected `32`, found `<Demo as TraitWAssocConst>::A`
|
= note: expected constant `32`
found constant `<Demo as TraitWAssocConst>::A`
note: required by a bound in `foo`
--> $DIR/issue-105330.rs:11:28
|
LL | fn foo<A: TraitWAssocConst<A=32>>() {
| ^^^^ required by this bound in `foo`
error: aborting due to 11 previous errors
Some errors have detailed explanations: E0131, E0271, E0277, E0404, E0562, E0618, E0658.
For more information about an error, try `rustc --explain E0131`.

1
tests/ui/associated-inherent-types/issue-109299.rs
View File

@ -8,5 +8,6 @@ impl Lexer<'d> { //~ ERROR use of undeclared lifetime name `'d`
}
fn test(_: Lexer::Cursor) {}
//~^ ERROR: lifetime may not live long enough
fn main() {}

11
tests/ui/associated-inherent-types/issue-109299.stderr
View File

@ -6,6 +6,15 @@ LL | impl Lexer<'d> {
| |
| help: consider introducing lifetime `'d` here: `<'d>`
error: aborting due to 1 previous error
error: lifetime may not live long enough
--> $DIR/issue-109299.rs:10:1
|
LL | fn test(_: Lexer::Cursor) {}
| ^^^^^^^^-^^^^^^^^^^^^^^^^
| | |
| | has type `Lexer<'1>::Cursor`
| requires that `'1` must outlive `'static`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0261`.

2
tests/ui/associated-inherent-types/issue-109789.rs
View File

@ -18,5 +18,7 @@ impl Other for u32 {}
fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {}
//~^ ERROR mismatched types
//~| ERROR mismatched types
//~| ERROR higher-ranked subtype error
//~| ERROR higher-ranked subtype error
fn main() {}

16
tests/ui/associated-inherent-types/issue-109789.stderr
View File

@ -17,6 +17,20 @@ LL | fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {}
found struct `Foo<for<'a> fn(&'a ())>`
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 2 previous errors
error: higher-ranked subtype error
--> $DIR/issue-109789.rs:18:1
|
LL | fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: higher-ranked subtype error
--> $DIR/issue-109789.rs:18:1
|
LL | fn bar(_: Foo<for<'a> fn(&'a ())>::Assoc) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0308`.

1
tests/ui/associated-inherent-types/regionck-2.rs
View File

@ -10,5 +10,6 @@ impl Lexer<'static> {
}
fn test(_: Lexer::Cursor) {} //~ ERROR mismatched types
//~^ ERROR: lifetime may not live long enough
fn main() {}

11
tests/ui/associated-inherent-types/regionck-2.stderr
View File

@ -13,6 +13,15 @@ LL | fn test(_: Lexer::Cursor) {}
| ^^^^^
= note: ...does not necessarily outlive the static lifetime
error: aborting due to 1 previous error
error: lifetime may not live long enough
--> $DIR/regionck-2.rs:12:1
|
LL | fn test(_: Lexer::Cursor) {}
| ^^^^^^^^-^^^^^^^^^^^^^^^^
| | |
| | has type `Lexer<'1>::Cursor`
| requires that `'1` must outlive `'static`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.

6
tests/ui/associated-types/associated-types-for-unimpl-trait.fixed
View File

@ -8,9 +8,9 @@ trait Get {
}
trait Other {
fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized, Self: Get, Self: Get {}
//~^ ERROR the trait bound `Self: Get` is not satisfied
//~| ERROR the trait bound `Self: Get` is not satisfied
}
fn main() {
}
fn main() {}

6
tests/ui/associated-types/associated-types-for-unimpl-trait.rs
View File

@ -8,9 +8,9 @@ trait Get {
}
trait Other {
fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized {}
//~^ ERROR the trait bound `Self: Get` is not satisfied
//~| ERROR the trait bound `Self: Get` is not satisfied
}
fn main() {
}
fn main() {}

21
tests/ui/associated-types/associated-types-for-unimpl-trait.stderr
View File

@ -1,14 +1,25 @@
error[E0277]: the trait bound `Self: Get` is not satisfied
--> $DIR/associated-types-for-unimpl-trait.rs:11:40
--> $DIR/associated-types-for-unimpl-trait.rs:11:41
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
LL | fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized {}
| ^^^^^^^^^^^^^^^^^^^^ the trait `Get` is not implemented for `Self`
|
help: consider further restricting `Self`
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
| +++++++++++++++
LL | fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized, Self: Get {}
| +++++++++++
error: aborting due to 1 previous error
error[E0277]: the trait bound `Self: Get` is not satisfied
--> $DIR/associated-types-for-unimpl-trait.rs:11:81
|
LL | fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized {}
| ^^ the trait `Get` is not implemented for `Self`
|
help: consider further restricting `Self`
|
LL | fn uhoh<U: Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Sized, Self: Get {}
| +++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

4
tests/ui/associated-types/associated-types-no-suitable-bound.rs
View File

@ -10,7 +10,7 @@ struct Struct {
impl Struct {
fn uhoh<T>(foo: <T as Get>::Value) {}
//~^ ERROR the trait bound `T: Get` is not satisfied
//~| ERROR the trait bound `T: Get` is not satisfied
}
fn main() {
}
fn main() {}

13
tests/ui/associated-types/associated-types-no-suitable-bound.stderr
View File

@ -9,6 +9,17 @@ help: consider restricting type parameter `T`
LL | fn uhoh<T: Get>(foo: <T as Get>::Value) {}
| +++++
error: aborting due to 1 previous error
error[E0277]: the trait bound `T: Get` is not satisfied
--> $DIR/associated-types-no-suitable-bound.rs:11:40
|
LL | fn uhoh<T>(foo: <T as Get>::Value) {}
| ^^ the trait `Get` is not implemented for `T`
|
help: consider restricting type parameter `T`
|
LL | fn uhoh<T: Get>(foo: <T as Get>::Value) {}
| +++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/associated-types-no-suitable-supertrait-2.rs
View File

@ -16,6 +16,7 @@ trait Get {
trait Other {
fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
//~^ ERROR the trait bound `Self: Get` is not satisfied
//~| ERROR the trait bound `Self: Get` is not satisfied
}
fn main() { }

13
tests/ui/associated-types/associated-types-no-suitable-supertrait-2.stderr
View File

@ -9,6 +9,17 @@ help: consider further restricting `Self`
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
| +++++++++++++++
error: aborting due to 1 previous error
error[E0277]: the trait bound `Self: Get` is not satisfied
--> $DIR/associated-types-no-suitable-supertrait-2.rs:17:62
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
| ^^ the trait `Get` is not implemented for `Self`
|
help: consider further restricting `Self`
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
| +++++++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/associated-types/associated-types-no-suitable-supertrait.rs
View File

@ -16,12 +16,14 @@ trait Get {
trait Other {
fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
//~^ ERROR the trait bound `Self: Get` is not satisfied
//~| ERROR the trait bound `Self: Get` is not satisfied
}
impl<T:Get> Other for T {
fn uhoh<U:Get>(&self, foo: U, bar: <(T, U) as Get>::Value) {}
//~^ ERROR the trait bound `(T, U): Get` is not satisfied
//~| ERROR the trait bound `(T, U): Get` is not satisfied
//~| ERROR the trait bound `(T, U): Get` is not satisfied
}
fn main() { }

29
tests/ui/associated-types/associated-types-no-suitable-supertrait.stderr
View File

@ -1,5 +1,5 @@
error[E0277]: the trait bound `(T, U): Get` is not satisfied
--> $DIR/associated-types-no-suitable-supertrait.rs:22:5
--> $DIR/associated-types-no-suitable-supertrait.rs:23:5
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <(T, U) as Get>::Value) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Get` is not implemented for `(T, U)`
@ -11,7 +11,7 @@ LL | trait Get {
| ^^^^^^^^^
error[E0277]: the trait bound `(T, U): Get` is not satisfied
--> $DIR/associated-types-no-suitable-supertrait.rs:22:40
--> $DIR/associated-types-no-suitable-supertrait.rs:23:40
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <(T, U) as Get>::Value) {}
| ^^^^^^^^^^^^^^^^^^^^^^ the trait `Get` is not implemented for `(T, U)`
@ -33,6 +33,29 @@ help: consider further restricting `Self`
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
| +++++++++++++++
error: aborting due to 3 previous errors
error[E0277]: the trait bound `Self: Get` is not satisfied
--> $DIR/associated-types-no-suitable-supertrait.rs:17:62
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) {}
| ^^ the trait `Get` is not implemented for `Self`
|
help: consider further restricting `Self`
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <Self as Get>::Value) where Self: Get {}
| +++++++++++++++
error[E0277]: the trait bound `(T, U): Get` is not satisfied
--> $DIR/associated-types-no-suitable-supertrait.rs:23:64
|
LL | fn uhoh<U:Get>(&self, foo: U, bar: <(T, U) as Get>::Value) {}
| ^^ the trait `Get` is not implemented for `(T, U)`
|
help: this trait has no implementations, consider adding one
--> $DIR/associated-types-no-suitable-supertrait.rs:12:1
|
LL | trait Get {
| ^^^^^^^^^
error: aborting due to 5 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-bound-1.rs
View File

@ -15,4 +15,5 @@ impl X<'_> for i32 {
fn main() {
1i32.f("abc");
//~^ ERROR the trait bound `str: Clone`
}

18
tests/ui/associated-types/hr-associated-type-bound-1.stderr
View File

@ -14,6 +14,22 @@ LL | where
LL | for<'b> <Self as X<'b>>::U: Clone,
| ^^^^^ required by this bound in `X`
error: aborting due to 1 previous error
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-1.rs:17:10
|
LL | 1i32.f("abc");
| ^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `X::f`
--> $DIR/hr-associated-type-bound-1.rs:3:33
|
LL | for<'b> <Self as X<'b>>::U: Clone,
| ^^^^^ required by this bound in `X::f`
...
LL | fn f(&self, x: &Self::U) {
| - required by a bound in this associated function
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

3
tests/ui/associated-types/hr-associated-type-bound-object.rs
View File

@ -7,6 +7,9 @@ where
fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) {
//~^ ERROR the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied
<<T as X<'_>>::U>::clone(x);
//~^ ERROR the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied
//~| ERROR the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied
//~| ERROR the trait bound `<T as X<'_>>::U: Clone` is not satisfied
}
pub fn main() {

51
tests/ui/associated-types/hr-associated-type-bound-object.stderr
View File

@ -17,6 +17,55 @@ help: consider further restricting the associated type
LL | fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) where for<'b> <T as X<'b>>::U: Clone {
| ++++++++++++++++++++++++++++++++++++
error: aborting due to 1 previous error
error[E0277]: the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-object.rs:9:7
|
LL | <<T as X<'_>>::U>::clone(x);
| ^ the trait `for<'b> Clone` is not implemented for `<T as X<'b>>::U`
|
note: required by a bound in `X::U`
--> $DIR/hr-associated-type-bound-object.rs:3:33
|
LL | for<'b> <Self as X<'b>>::U: Clone,
| ^^^^^ required by this bound in `X::U`
LL | {
LL | type U: ?Sized;
| - required by a bound in this associated type
help: consider further restricting the associated type
|
LL | fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) where for<'b> <T as X<'b>>::U: Clone {
| ++++++++++++++++++++++++++++++++++++
error[E0277]: the trait bound `<T as X<'_>>::U: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-object.rs:9:6
|
LL | <<T as X<'_>>::U>::clone(x);
| ^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `<T as X<'_>>::U`
|
help: consider further restricting the associated type
|
LL | fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) where <T as X<'_>>::U: Clone {
| ++++++++++++++++++++++++++++
error[E0277]: the trait bound `for<'b> <T as X<'b>>::U: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-object.rs:9:5
|
LL | <<T as X<'_>>::U>::clone(x);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `for<'b> Clone` is not implemented for `<T as X<'b>>::U`
|
note: required by a bound in `X`
--> $DIR/hr-associated-type-bound-object.rs:3:33
|
LL | trait X<'a>
| - required by a bound in this trait
LL | where
LL | for<'b> <Self as X<'b>>::U: Clone,
| ^^^^^ required by this bound in `X`
help: consider further restricting the associated type
|
LL | fn f<'a, T: X<'a> + ?Sized>(x: &<T as X<'a>>::U) where for<'b> <T as X<'b>>::U: Clone {
| ++++++++++++++++++++++++++++++++++++
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-bound-param-1.rs
View File

@ -17,4 +17,5 @@ impl<'a> Y<'a, u8> for u8 {
fn main() {
1u8.g("abc");
//~^ ERROR the trait bound `str: Clone` is not satisfied
}

18
tests/ui/associated-types/hr-associated-type-bound-param-1.stderr
View File

@ -14,6 +14,22 @@ LL | trait Y<'a, T: ?Sized>
LL | for<'b> <Self as Y<'b, T>>::V: Clone,
| ^^^^^ required by this bound in `Y`
error: aborting due to 1 previous error
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-1.rs:19:9
|
LL | 1u8.g("abc");
| ^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `Y::g`
--> $DIR/hr-associated-type-bound-param-1.rs:4:36
|
LL | for<'b> <Self as Y<'b, T>>::V: Clone,
| ^^^^^ required by this bound in `Y::g`
...
LL | fn g(&self, x: &Self::V) {
| - required by a bound in this associated function
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

3
tests/ui/associated-types/hr-associated-type-bound-param-2.rs
View File

@ -8,6 +8,8 @@ where
type W: ?Sized;
fn h(&self, x: &T::W) {
<T::W>::clone(x);
//~^ the trait bound `str: Clone` is not satisfied
//~| the trait bound `str: Clone` is not satisfied
}
}
@ -18,4 +20,5 @@ impl<'a> Z<'a, u16> for u16 {
fn main() {
1u16.h("abc");
//~^ ERROR Clone` is not satisfied
}

52
tests/ui/associated-types/hr-associated-type-bound-param-2.stderr
View File

@ -15,7 +15,7 @@ LL | for<'b> <T as Z<'b, u16>>::W: Clone,
| ^^^^^ required by this bound in `Z`
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-2.rs:15:14
--> $DIR/hr-associated-type-bound-param-2.rs:17:14
|
LL | type W = str;
| ^^^ the trait `Clone` is not implemented for `str`, which is required by `for<'b> <u16 as Z<'b, u16>>::W: Clone`
@ -47,6 +47,54 @@ LL | for<'b> <T as Z<'b, u16>>::W: Clone,
| ^^^^^ required by this bound in `Z`
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 3 previous errors
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-2.rs:10:10
|
LL | <T::W>::clone(x);
| ^^^^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `Z::W`
--> $DIR/hr-associated-type-bound-param-2.rs:6:35
|
LL | for<'b> <T as Z<'b, u16>>::W: Clone,
| ^^^^^ required by this bound in `Z::W`
LL | {
LL | type W: ?Sized;
| - required by a bound in this associated type
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-2.rs:10:9
|
LL | <T::W>::clone(x);
| ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `Z`
--> $DIR/hr-associated-type-bound-param-2.rs:6:35
|
LL | trait Z<'a, T: ?Sized>
| - required by a bound in this trait
...
LL | for<'b> <T as Z<'b, u16>>::W: Clone,
| ^^^^^ required by this bound in `Z`
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-2.rs:22:10
|
LL | 1u16.h("abc");
| ^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `Z::h`
--> $DIR/hr-associated-type-bound-param-2.rs:6:35
|
LL | for<'b> <T as Z<'b, u16>>::W: Clone,
| ^^^^^ required by this bound in `Z::h`
...
LL | fn h(&self, x: &T::W) {
| - required by a bound in this associated function
error: aborting due to 6 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-bound-param-3.rs
View File

@ -16,4 +16,5 @@ impl<S, T> X<'_, (T,)> for (S,) {
pub fn main() {
<(i32,) as X<(i32,)>>::f("abc");
//~^ ERROR the trait bound `str: Clone` is not satisfied
}

18
tests/ui/associated-types/hr-associated-type-bound-param-3.stderr
View File

@ -14,6 +14,22 @@ LL | trait X<'a, T>
LL | for<'b> <T as X<'b, T>>::U: Clone,
| ^^^^^ required by this bound in `X`
error: aborting due to 1 previous error
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-3.rs:18:5
|
LL | <(i32,) as X<(i32,)>>::f("abc");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `X::f`
--> $DIR/hr-associated-type-bound-param-3.rs:4:33
|
LL | for<'b> <T as X<'b, T>>::U: Clone,
| ^^^^^ required by this bound in `X::f`
...
LL | fn f(x: &<T as X<'_, T>>::U) {
| - required by a bound in this associated function
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-bound-param-4.rs
View File

@ -16,4 +16,5 @@ impl<S, T> X<'_, T> for (S,) {
pub fn main() {
<(i32,) as X<i32>>::f("abc");
//~^ ERROR the trait bound `str: Clone` is not satisfied
}

18
tests/ui/associated-types/hr-associated-type-bound-param-4.stderr
View File

@ -14,6 +14,22 @@ LL | trait X<'a, T>
LL | for<'b> <(T,) as X<'b, T>>::U: Clone,
| ^^^^^ required by this bound in `X`
error: aborting due to 1 previous error
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-4.rs:18:5
|
LL | <(i32,) as X<i32>>::f("abc");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `X::f`
--> $DIR/hr-associated-type-bound-param-4.rs:4:36
|
LL | for<'b> <(T,) as X<'b, T>>::U: Clone,
| ^^^^^ required by this bound in `X::f`
...
LL | fn f(x: &<(T,) as X<'_, T>>::U) {
| - required by a bound in this associated function
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-bound-param-5.rs
View File

@ -34,4 +34,5 @@ impl<S, T> X<'_, Box<T>> for S {
pub fn main() {
<i32 as X<Box<i32>>>::f("abc");
//~^ ERROR the trait bound `str: Clone` is not satisfied
}

18
tests/ui/associated-types/hr-associated-type-bound-param-5.stderr
View File

@ -30,6 +30,22 @@ LL | trait X<'a, T: Cycle + for<'b> X<'b, T>>
LL | for<'b> <T::Next as X<'b, T::Next>>::U: Clone,
| ^^^^^ required by this bound in `X`
error: aborting due to 2 previous errors
error[E0277]: the trait bound `str: Clone` is not satisfied
--> $DIR/hr-associated-type-bound-param-5.rs:36:5
|
LL | <i32 as X<Box<i32>>>::f("abc");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `str`
|
= help: the trait `Clone` is implemented for `String`
note: required by a bound in `X::f`
--> $DIR/hr-associated-type-bound-param-5.rs:15:33
|
LL | for<'b> <T as X<'b, T>>::U: Clone,
| ^^^^^ required by this bound in `X::f`
...
LL | fn f(x: &<T as X<'_, T>>::U) {
| - required by a bound in this associated function
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/associated-types/hr-associated-type-bound-param-6.rs
View File

@ -16,4 +16,6 @@ impl<S, T> X<'_, T> for (S,) {
pub fn main() {
<(i32,) as X<i32>>::f("abc");
//~^ ERROR the trait bound `for<'b> i32: X<'b, i32>` is not satisfied
//~| ERROR the trait bound `i32: X<'_, i32>` is not satisfied
}

18
tests/ui/associated-types/hr-associated-type-bound-param-6.stderr
View File

@ -9,6 +9,22 @@ help: consider restricting type parameter `T`
LL | impl<S, T: for<'b> X<'b, T>> X<'_, T> for (S,) {
| ++++++++++++++++++
error: aborting due to 1 previous error
error[E0277]: the trait bound `for<'b> i32: X<'b, i32>` is not satisfied
--> $DIR/hr-associated-type-bound-param-6.rs:18:5
|
LL | <(i32,) as X<i32>>::f("abc");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `for<'b> X<'b, i32>` is not implemented for `i32`
|
= help: the trait `X<'_, T>` is implemented for `(S,)`
error[E0277]: the trait bound `i32: X<'_, i32>` is not satisfied
--> $DIR/hr-associated-type-bound-param-6.rs:18:27
|
LL | <(i32,) as X<i32>>::f("abc");
| ^^^^^ the trait `X<'_, i32>` is not implemented for `i32`
|
= help: the trait `X<'_, T>` is implemented for `(S,)`
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/associated-types/hr-associated-type-projection-1.rs
View File

@ -17,4 +17,5 @@ impl<T: Copy + std::ops::Deref> UnsafeCopy<'_, T> for T {
pub fn main() {
<&'static str>::bug(&"");
//~^ type mismatch resolving `<&str as Deref>::Target == &str`
}

17
tests/ui/associated-types/hr-associated-type-projection-1.stderr
View File

@ -21,6 +21,21 @@ help: consider further restricting this bound
LL | impl<T: Copy + std::ops::Deref<Target = T>> UnsafeCopy<'_, T> for T {
| ++++++++++++
error: aborting due to 1 previous error
error[E0271]: type mismatch resolving `<&str as Deref>::Target == &str`
--> $DIR/hr-associated-type-projection-1.rs:19:6
|
LL | <&'static str>::bug(&"");
| ^^^^^^^^^^^^ expected `&str`, found `str`
|
note: required by a bound in `UnsafeCopy::bug`
--> $DIR/hr-associated-type-projection-1.rs:3:64
|
LL | for<'b> <Self as UnsafeCopy<'b, T>>::Item: std::ops::Deref<Target = T>,
| ^^^^^^^^^^ required by this bound in `UnsafeCopy::bug`
...
LL | fn bug(item: &Self::Item) -> () {
| --- required by a bound in this associated function
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0271`.

4
tests/ui/associated-types/issue-20005.rs
View File

@ -6,9 +6,9 @@ trait From<Src> {
trait To {
fn to<Dst>(
self
self //~ ERROR the size for values of type
) -> <Dst as From<Self>>::Result where Dst: From<Self> { //~ ERROR the size for values of type
From::from(self)
From::from(self) //~ ERROR the size for values of type
}
}

38
tests/ui/associated-types/issue-20005.stderr
View File

@ -18,6 +18,42 @@ help: consider relaxing the implicit `Sized` restriction
LL | trait From<Src: ?Sized> {
| ++++++++
error: aborting due to 1 previous error
error[E0277]: the size for values of type `Self` cannot be known at compilation time
--> $DIR/issue-20005.rs:9:9
|
LL | self
| ^^^^ doesn't have a size known at compile-time
|
= help: unsized fn params are gated as an unstable feature
help: consider further restricting `Self`
|
LL | ) -> <Dst as From<Self>>::Result where Dst: From<Self>, Self: Sized {
| +++++++++++++
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | &self
| +
error[E0277]: the size for values of type `Self` cannot be known at compilation time
--> $DIR/issue-20005.rs:11:9
|
LL | From::from(self)
| ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
note: required by an implicit `Sized` bound in `From`
--> $DIR/issue-20005.rs:1:12
|
LL | trait From<Src> {
| ^^^ required by the implicit `Sized` requirement on this type parameter in `From`
help: consider further restricting `Self`
|
LL | ) -> <Dst as From<Self>>::Result where Dst: From<Self>, Self: Sized {
| +++++++++++++
help: consider relaxing the implicit `Sized` restriction
|
LL | trait From<Src: ?Sized> {
| ++++++++
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/associated-types/issue-38821.rs
View File

@ -35,6 +35,8 @@ pub trait Column: Expression {}
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
pub enum ColumnInsertValue<Col, Expr> where
//~^ ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
//~| ERROR the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied

38
tests/ui/associated-types/issue-38821.stderr
View File

@ -18,7 +18,7 @@ LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Co
| +++++++++++++++++++++++++++++++++++++++
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
--> $DIR/issue-38821.rs:38:1
--> $DIR/issue-38821.rs:40:1
|
LL | pub enum ColumnInsertValue<Col, Expr> where
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`, which is required by `<Col as Expression>::SqlType: IntoNullable`
@ -36,7 +36,7 @@ LL | Expr: Expression<SqlType=<Col::SqlType as IntoNullable>::Nullable>, <Co
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
--> $DIR/issue-38821.rs:38:1
--> $DIR/issue-38821.rs:40:1
|
LL | / pub enum ColumnInsertValue<Col, Expr> where
LL | |
@ -283,6 +283,38 @@ LL | impl<T: NotNull> IntoNullable for T {
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 16 previous errors
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
--> $DIR/issue-38821.rs:23:10
|
LL | #[derive(Debug, Copy, Clone)]
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`, which is required by `<Col as Expression>::SqlType: IntoNullable`
|
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
--> $DIR/issue-38821.rs:9:18
|
LL | impl<T: NotNull> IntoNullable for T {
| ------- ^^^^^^^^^^^^ ^
| |
| unsatisfied trait bound introduced here
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0277]: the trait bound `<Col as Expression>::SqlType: NotNull` is not satisfied
--> $DIR/issue-38821.rs:23:23
|
LL | #[derive(Debug, Copy, Clone)]
| ^^^^^ the trait `NotNull` is not implemented for `<Col as Expression>::SqlType`, which is required by `<Col as Expression>::SqlType: IntoNullable`
|
note: required for `<Col as Expression>::SqlType` to implement `IntoNullable`
--> $DIR/issue-38821.rs:9:18
|
LL | impl<T: NotNull> IntoNullable for T {
| ------- ^^^^^^^^^^^^ ^
| |
| unsatisfied trait bound introduced here
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 18 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/associated-types/issue-59324.rs
View File

@ -22,5 +22,7 @@ pub trait ThriftService<Bug: NotFoo>:
fn with_factory<H>(factory: dyn ThriftService<()>) {}
//~^ ERROR the trait bound `(): Foo` is not satisfied
//~| ERROR the trait bound `(): Foo` is not satisfied
//~| ERROR cannot be known at compilation time
fn main() {}

31
tests/ui/associated-types/issue-59324.stderr
View File

@ -66,6 +66,35 @@ help: consider further restricting this bound
LL | pub trait ThriftService<Bug: NotFoo + Foo>:
| +++++
error: aborting due to 5 previous errors
error[E0277]: the trait bound `(): Foo` is not satisfied
--> $DIR/issue-59324.rs:23:52
|
LL | fn with_factory<H>(factory: dyn ThriftService<()>) {}
| ^^ the trait `Foo` is not implemented for `()`
|
help: this trait has no implementations, consider adding one
--> $DIR/issue-59324.rs:3:1
|
LL | pub trait Foo: NotFoo {
| ^^^^^^^^^^^^^^^^^^^^^
error[E0277]: the size for values of type `(dyn ThriftService<(), AssocType = _> + 'static)` cannot be known at compilation time
--> $DIR/issue-59324.rs:23:20
|
LL | fn with_factory<H>(factory: dyn ThriftService<()>) {}
| ^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `(dyn ThriftService<(), AssocType = _> + 'static)`
= help: unsized fn params are gated as an unstable feature
help: you can use `impl Trait` as the argument type
|
LL | fn with_factory<H>(factory: impl ThriftService<()>) {}
| ~~~~
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn with_factory<H>(factory: &dyn ThriftService<()>) {}
| +
error: aborting due to 7 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/auto-traits/issue-83857-ub.rs
View File

@ -21,7 +21,9 @@ impl WithAssoc for Foo<u32, ()> {
fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) {
//~^ ERROR `Foo<T, U>` cannot be sent between threads safely
//~| ERROR `Foo<T, U>` cannot be sent between threads safely
f(foo(v));
//~^ ERROR `Foo<T, U>` cannot be sent between threads safely
}
fn foo<T: Send>(x: T) -> <T as WithAssoc>::Output {

46
tests/ui/auto-traits/issue-83857-ub.stderr
View File

@ -17,6 +17,50 @@ help: consider introducing a `where` clause, but there might be an alternative b
LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) where Foo<T, U>: Send {
| +++++++++++++++++++++
error: aborting due to 1 previous error
error[E0277]: `Foo<T, U>` cannot be sent between threads safely
--> $DIR/issue-83857-ub.rs:22:80
|
LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) {
| ________________________________________________________________________________^
LL | |
LL | |
LL | | f(foo(v));
LL | |
LL | | }
| |_^ `Foo<T, U>` cannot be sent between threads safely
|
= help: the trait `Send` is not implemented for `Foo<T, U>`, which is required by `Foo<T, U>: WithAssoc`
note: required for `Foo<T, U>` to implement `WithAssoc`
--> $DIR/issue-83857-ub.rs:15:15
|
LL | impl<T: Send> WithAssoc for T {
| ---- ^^^^^^^^^ ^
| |
| unsatisfied trait bound introduced here
help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
|
LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) where Foo<T, U>: Send {
| +++++++++++++++++++++
error[E0277]: `Foo<T, U>` cannot be sent between threads safely
--> $DIR/issue-83857-ub.rs:25:11
|
LL | f(foo(v));
| --- ^ `Foo<T, U>` cannot be sent between threads safely
| |
| required by a bound introduced by this call
|
= help: the trait `Send` is not implemented for `Foo<T, U>`
note: required by a bound in `foo`
--> $DIR/issue-83857-ub.rs:29:11
|
LL | fn foo<T: Send>(x: T) -> <T as WithAssoc>::Output {
| ^^^^ required by this bound in `foo`
help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
|
LL | fn generic<T, U>(v: Foo<T, U>, f: fn(<Foo<T, U> as WithAssoc>::Output) -> i32) where Foo<T, U>: Send {
| +++++++++++++++++++++
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/builtin-superkinds/builtin-superkinds-self-type.rs
View File

@ -14,4 +14,5 @@ fn main() {
let (tx, rx) = channel();
1193182.foo(tx);
assert_eq!(rx.recv(), 1193182);
//~^ ERROR: mismatched types
}

18
tests/ui/builtin-superkinds/builtin-superkinds-self-type.stderr
View File

@ -17,6 +17,20 @@ help: consider adding an explicit lifetime bound
LL | impl <T: Sync + 'static> Foo for T { }
| +++++++++
error: aborting due to 1 previous error
error[E0308]: mismatched types
--> $DIR/builtin-superkinds-self-type.rs:16:27
|
LL | assert_eq!(rx.recv(), 1193182);
| ^^^^^^^ expected `Result<{integer}, RecvError>`, found integer
|
= note: expected enum `Result<{integer}, RecvError>`
found type `{integer}`
help: try wrapping the expression in `Ok`
|
LL | assert_eq!(rx.recv(), Ok(1193182));
| +++ +
For more information about this error, try `rustc --explain E0310`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0308, E0310.
For more information about an error, try `rustc --explain E0308`.

1
tests/ui/closures/closure-bounds-cant-promote-superkind-in-struct.rs
View File

@ -5,6 +5,7 @@ struct X<F> where F: FnOnce() + 'static + Send {
fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static {
//~^ ERROR `F` cannot be sent between threads safely
return X { field: blk };
//~^ ERROR `F` cannot be sent between threads safely
}
fn main() {

18
tests/ui/closures/closure-bounds-cant-promote-superkind-in-struct.stderr
View File

@ -14,6 +14,22 @@ help: consider further restricting this bound
LL | fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static + std::marker::Send {
| +++++++++++++++++++
error: aborting due to 1 previous error
error[E0277]: `F` cannot be sent between threads safely
--> $DIR/closure-bounds-cant-promote-superkind-in-struct.rs:7:23
|
LL | return X { field: blk };
| ^^^ `F` cannot be sent between threads safely
|
note: required by a bound in `X`
--> $DIR/closure-bounds-cant-promote-superkind-in-struct.rs:1:43
|
LL | struct X<F> where F: FnOnce() + 'static + Send {
| ^^^^ required by this bound in `X`
help: consider further restricting this bound
|
LL | fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static + std::marker::Send {
| +++++++++++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/coherence/coherence-blanket-conflicts-with-specific-multidispatch.rs
View File

@ -23,6 +23,7 @@ impl MyTrait<MyType> for MyType {
//~^ ERROR E0119
fn get(&self) -> usize { (*self).clone() }
//~^ ERROR incompatible type
//~| ERROR mismatched types
}
fn main() { }

12
tests/ui/coherence/coherence-blanket-conflicts-with-specific-multidispatch.stderr
View File

@ -24,7 +24,15 @@ LL | fn get(&self) -> T;
= note: expected signature `fn(&MyType) -> MyType`
found signature `fn(&MyType) -> usize`
error: aborting due to 2 previous errors
error[E0308]: mismatched types
--> $DIR/coherence-blanket-conflicts-with-specific-multidispatch.rs:24:30
|
LL | fn get(&self) -> usize { (*self).clone() }
| ----- ^^^^^^^^^^^^^^^ expected `usize`, found `MyType`
| |
| expected `usize` because of return type
Some errors have detailed explanations: E0053, E0119.
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0053, E0119, E0308.
For more information about an error, try `rustc --explain E0053`.

1
tests/ui/coherence/coherence-tuple-conflict.rs
View File

@ -15,6 +15,7 @@ impl<T> MyTrait for (T,T) {
impl<A,B> MyTrait for (A,B) {
//~^ ERROR E0119
fn get(&self) -> usize { self.dummy }
//~^ ERROR: no field `dummy`
}
fn main() { }

11
tests/ui/coherence/coherence-tuple-conflict.stderr
View File

@ -7,6 +7,13 @@ LL | impl<T> MyTrait for (T,T) {
LL | impl<A,B> MyTrait for (A,B) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(_, _)`
error: aborting due to 1 previous error
error[E0609]: no field `dummy` on type `&(A, B)`
--> $DIR/coherence-tuple-conflict.rs:17:35
|
LL | fn get(&self) -> usize { self.dummy }
| ^^^^^ unknown field
For more information about this error, try `rustc --explain E0119`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0119, E0609.
For more information about an error, try `rustc --explain E0119`.

11
tests/ui/coherence/occurs-check/associated-type.next.stderr
View File

@ -20,6 +20,13 @@ LL | | for<'a> *const T: ToUnit<'a>,
|
= note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
error: aborting due to 1 previous error
error[E0284]: type annotations needed: cannot satisfy `<for<'a> fn(&'a (), ()) as Overlap<for<'a> fn(&'a (), ())>>::Assoc == usize`
--> $DIR/associated-type.rs:44:59
|
LL | foo::<for<'a> fn(&'a (), ()), for<'a> fn(&'a (), ())>(3usize);
| ^^^^^^ cannot satisfy `<for<'a> fn(&'a (), ()) as Overlap<for<'a> fn(&'a (), ())>>::Assoc == usize`
For more information about this error, try `rustc --explain E0119`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0119, E0284.
For more information about an error, try `rustc --explain E0119`.

1
tests/ui/coherence/occurs-check/associated-type.rs
View File

@ -42,4 +42,5 @@ fn foo<T: Overlap<U>, U>(x: T::Assoc) -> T::Assoc {
fn main() {
foo::<for<'a> fn(&'a (), ()), for<'a> fn(&'a (), ())>(3usize);
//[next]~^ ERROR: cannot satisfy
}

22
tests/ui/const-generics/const-argument-if-length.full.stderr
View File

@ -1,5 +1,5 @@
error: unconstrained generic constant
--> $DIR/const-argument-if-length.rs:17:10
--> $DIR/const-argument-if-length.rs:18:10
|
LL | pad: [u8; is_zst::<T>()],
| ^^^^^^^^^^^^^^^^^^^
@ -7,7 +7,7 @@ LL | pad: [u8; is_zst::<T>()],
= help: try adding a `where` bound using this expression: `where [(); is_zst::<T>()]:`
error[E0277]: the size for values of type `T` cannot be known at compilation time
--> $DIR/const-argument-if-length.rs:15:12
--> $DIR/const-argument-if-length.rs:16:12
|
LL | pub struct AtLeastByte<T: ?Sized> {
| - this type parameter needs to be `Sized`
@ -30,6 +30,22 @@ help: the `Box` type always has a statically known size and allocates its conten
LL | value: Box<T>,
| ++++ +
error: aborting due to 2 previous errors
error[E0277]: the size for values of type `T` cannot be known at compilation time
--> $DIR/const-argument-if-length.rs:7:28
|
LL | pub const fn is_zst<T: ?Sized>() -> usize {
| - this type parameter needs to be `Sized`
LL | if std::mem::size_of::<T>() == 0 {
| ^ doesn't have a size known at compile-time
|
note: required by an implicit `Sized` bound in `std::mem::size_of`
--> $SRC_DIR/core/src/mem/mod.rs:LL:COL
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - pub const fn is_zst<T: ?Sized>() -> usize {
LL + pub const fn is_zst<T>() -> usize {
|
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

22
tests/ui/const-generics/const-argument-if-length.min.stderr
View File

@ -1,5 +1,5 @@
error: generic parameters may not be used in const operations
--> $DIR/const-argument-if-length.rs:17:24
--> $DIR/const-argument-if-length.rs:18:24
|
LL | pad: [u8; is_zst::<T>()],
| ^ cannot perform const operation using `T`
@ -8,7 +8,7 @@ LL | pad: [u8; is_zst::<T>()],
= help: add `#![feature(generic_const_exprs)]` to allow generic const expressions
error[E0277]: the size for values of type `T` cannot be known at compilation time
--> $DIR/const-argument-if-length.rs:15:12
--> $DIR/const-argument-if-length.rs:16:12
|
LL | pub struct AtLeastByte<T: ?Sized> {
| - this type parameter needs to be `Sized`
@ -31,6 +31,22 @@ help: the `Box` type always has a statically known size and allocates its conten
LL | value: Box<T>,
| ++++ +
error: aborting due to 2 previous errors
error[E0277]: the size for values of type `T` cannot be known at compilation time
--> $DIR/const-argument-if-length.rs:7:28
|
LL | pub const fn is_zst<T: ?Sized>() -> usize {
| - this type parameter needs to be `Sized`
LL | if std::mem::size_of::<T>() == 0 {
| ^ doesn't have a size known at compile-time
|
note: required by an implicit `Sized` bound in `std::mem::size_of`
--> $SRC_DIR/core/src/mem/mod.rs:LL:COL
help: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - pub const fn is_zst<T: ?Sized>() -> usize {
LL + pub const fn is_zst<T>() -> usize {
|
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.

1
tests/ui/const-generics/const-argument-if-length.rs
View File

@ -5,6 +5,7 @@
pub const fn is_zst<T: ?Sized>() -> usize {
if std::mem::size_of::<T>() == 0 {
//~^ ERROR the size for values of type `T` cannot be known at compilation time
1
} else {
0

25
tests/ui/const-generics/fn-const-param-infer.full.stderr
View File

@ -4,6 +4,27 @@ error[E0741]: using function pointers as const generic parameters is forbidden
LL | struct Checked<const F: fn(usize) -> bool>;
| ^^^^^^^^^^^^^^^^^
error: aborting due to 1 previous error
error[E0308]: mismatched types
--> $DIR/fn-const-param-infer.rs:23:24
|
LL | let _ = Checked::<{generic_arg::<u32>}>;
| ^^^^^^^^^^^^^^^^^^ expected fn pointer, found fn item
|
= note: expected fn pointer `fn(usize) -> _`
found fn item `fn(u32) -> _ {generic_arg::<u32>}`
For more information about this error, try `rustc --explain E0741`.
error[E0282]: type annotations needed
--> $DIR/fn-const-param-infer.rs:25:23
|
LL | let _ = Checked::<generic>;
| ^^^^^^^ cannot infer type of the type parameter `T` declared on the function `generic`
|
help: consider specifying the generic argument
|
LL | let _ = Checked::<generic::<T>>;
| +++++
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0282, E0308, E0741.
For more information about an error, try `rustc --explain E0282`.

24
tests/ui/const-generics/fn-const-param-infer.min.stderr
View File

@ -6,5 +6,27 @@ LL | struct Checked<const F: fn(usize) -> bool>;
|
= note: the only supported types are integers, `bool` and `char`
error: aborting due to 1 previous error
error[E0308]: mismatched types
--> $DIR/fn-const-param-infer.rs:23:24
|
LL | let _ = Checked::<{generic_arg::<u32>}>;
| ^^^^^^^^^^^^^^^^^^ expected fn pointer, found fn item
|
= note: expected fn pointer `fn(usize) -> _`
found fn item `fn(u32) -> _ {generic_arg::<u32>}`
error[E0282]: type annotations needed
--> $DIR/fn-const-param-infer.rs:25:23
|
LL | let _ = Checked::<generic>;
| ^^^^^^^ cannot infer type of the type parameter `T` declared on the function `generic`
|
help: consider specifying the generic argument
|
LL | let _ = Checked::<generic::<T>>;
| +++++
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0282, E0308.
For more information about an error, try `rustc --explain E0282`.

4
tests/ui/const-generics/fn-const-param-infer.rs
View File

@ -20,9 +20,9 @@ fn main() {
let _ = Checked::<generic_arg>;
let _ = Checked::<{generic_arg::<usize>}>;
let _ = Checked::<{generic_arg::<u32>}>;
let _ = Checked::<{generic_arg::<u32>}>; //~ ERROR: mismatched types
let _ = Checked::<generic>;
let _ = Checked::<generic>; //~ ERROR: type annotations needed
let _ = Checked::<{generic::<u16>}>;
let _: Checked<{generic::<u16>}> = Checked::<{generic::<u16>}>;
let _: Checked<{generic::<u32>}> = Checked::<{generic::<u16>}>;

1
tests/ui/const-generics/generic_const_exprs/no_where_clause.rs
View File

@ -16,6 +16,7 @@ impl<const N: usize> Example<N> {
Self {
a: [0.; N],
b: [0.; complex_maths(N)],
//~^ ERROR: unconstrained generic constant
}
}
}

10
tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr
View File

@ -6,5 +6,13 @@ LL | b: [f32; complex_maths(N)],
|
= help: try adding a `where` bound using this expression: `where [(); complex_maths(N)]:`
error: aborting due to 1 previous error
error: unconstrained generic constant
--> $DIR/no_where_clause.rs:18:15
|
LL | b: [0.; complex_maths(N)],
| ^^^^^^^^^^^^^^^^
|
= help: try adding a `where` bound using this expression: `where [(); complex_maths(N)]:`
error: aborting due to 2 previous errors

2
tests/ui/const-generics/generic_const_exprs/object-safety-err-ret.rs
View File

@ -15,7 +15,7 @@ impl Foo for () {
}
fn use_dyn(v: &dyn Foo) { //~ERROR the trait `Foo` cannot be made into an object
v.test();
v.test(); //~ERROR the trait `Foo` cannot be made into an object
}
fn main() {}

20
tests/ui/const-generics/generic_const_exprs/object-safety-err-ret.stderr
View File

@ -16,6 +16,24 @@ LL | fn test(&self) -> [u8; bar::<Self>()];
= help: consider moving `test` to another trait
= help: only type `()` implements the trait, consider using it directly instead
error: aborting due to 1 previous error
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/object-safety-err-ret.rs:18:5
|
LL | v.test();
| ^^^^^^^^ `Foo` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/object-safety-err-ret.rs:8:8
|
LL | trait Foo {
| --- this trait cannot be made into an object...
LL | fn test(&self) -> [u8; bar::<Self>()];
| ^^^^ ^^^^^^^^^^^^^^^^^^^ ...because method `test` references the `Self` type in its return type
| |
| ...because method `test` references the `Self` type in its `where` clause
= help: consider moving `test` to another trait
= help: only type `()` implements the trait, consider using it directly instead
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0038`.

45
tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr
View File

@ -34,6 +34,47 @@ LL + #[derive(ConstParamTy)]
LL | struct Foo(u8);
|
error: aborting due to 3 previous errors
error: unconstrained generic constant
--> $DIR/unify-op-with-fn-call.rs:30:12
|
LL | bar2::<{ std::ops::Add::add(N, N) }>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: try adding a `where` bound using this expression: `where [(); { std::ops::Add::add(N, N) }]:`
For more information about this error, try `rustc --explain E0741`.
error[E0015]: cannot call non-const operator in constants
--> $DIR/unify-op-with-fn-call.rs:20:39
|
LL | fn foo<const N: Foo>(a: Evaluatable<{ N + N }>) {
| ^^^^^
|
note: impl defined here, but it is not `const`
--> $DIR/unify-op-with-fn-call.rs:10:1
|
LL | impl const std::ops::Add for Foo {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: calls in constants are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(effects)]` to the crate attributes to enable
error[E0015]: cannot call non-const fn `<Foo as Add>::add` in constants
--> $DIR/unify-op-with-fn-call.rs:21:13
|
LL | bar::<{ std::ops::Add::add(N, N) }>();
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: calls in constants are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(effects)]` to the crate attributes to enable
error[E0015]: cannot call non-const fn `<usize as Add>::add` in constants
--> $DIR/unify-op-with-fn-call.rs:30:14
|
LL | bar2::<{ std::ops::Add::add(N, N) }>();
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: calls in constants are limited to constant functions, tuple structs and tuple variants
= help: add `#![feature(effects)]` to the crate attributes to enable
error: aborting due to 7 previous errors
Some errors have detailed explanations: E0015, E0741.
For more information about an error, try `rustc --explain E0015`.

14
tests/ui/const-generics/issues/issue-62878.min.stderr
View File

@ -15,6 +15,16 @@ LL | fn foo<const N: usize, const A: [u8; N]>() {}
= note: the only supported types are integers, `bool` and `char`
= help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
error: aborting due to 2 previous errors
error[E0747]: type provided when a constant was expected
--> $DIR/issue-62878.rs:10:11
|
LL | foo::<_, { [1] }>();
| ^
|
= help: const arguments cannot yet be inferred with `_`
= help: add `#![feature(generic_arg_infer)]` to the crate attributes to enable
For more information about this error, try `rustc --explain E0770`.
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0747, E0770.
For more information about an error, try `rustc --explain E0747`.

1
tests/ui/const-generics/issues/issue-62878.rs
View File

@ -8,4 +8,5 @@ fn foo<const N: usize, const A: [u8; N]>() {}
fn main() {
foo::<_, { [1] }>();
//[min]~^ ERROR: type provided when a constant was expected
}

16
tests/ui/const-generics/raw-ptr-const-param.full.stderr
View File

@ -4,6 +4,18 @@ error[E0741]: using raw pointers as const generic parameters is forbidden
LL | struct Const<const P: *const u32>;
| ^^^^^^^^^^
error: aborting due to 1 previous error
error[E0308]: mismatched types
--> $DIR/raw-ptr-const-param.rs:9:40
|
LL | let _: Const<{ 15 as *const _ }> = Const::<{ 10 as *const _ }>;
| ------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{0xf as *const u32}`, found `{0xa as *const u32}`
| |
| expected due to this
|
= note: expected struct `Const<{0xf as *const u32}>`
found struct `Const<{0xa as *const u32}>`
For more information about this error, try `rustc --explain E0741`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0308, E0741.
For more information about an error, try `rustc --explain E0308`.

14
tests/ui/const-generics/raw-ptr-const-param.min.stderr
View File

@ -6,5 +6,17 @@ LL | struct Const<const P: *const u32>;
|
= note: the only supported types are integers, `bool` and `char`
error: aborting due to 1 previous error
error[E0308]: mismatched types
--> $DIR/raw-ptr-const-param.rs:9:40
|
LL | let _: Const<{ 15 as *const _ }> = Const::<{ 10 as *const _ }>;
| ------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{0xf as *const u32}`, found `{0xa as *const u32}`
| |
| expected due to this
|
= note: expected struct `Const<{0xf as *const u32}>`
found struct `Const<{0xa as *const u32}>`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.

1
tests/ui/const-generics/raw-ptr-const-param.rs
View File

@ -7,5 +7,6 @@ struct Const<const P: *const u32>; //~ ERROR: using raw pointers as const generi
fn main() {
let _: Const<{ 15 as *const _ }> = Const::<{ 10 as *const _ }>;
//~^ ERROR: mismatched types
let _: Const<{ 10 as *const _ }> = Const::<{ 10 as *const _ }>;
}

36
tests/ui/const-generics/slice-const-param-mismatch.min.stderr
View File

@ -16,5 +16,39 @@ LL | struct ConstBytes<const T: &'static [u8]>;
= note: the only supported types are integers, `bool` and `char`
= help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
error: aborting due to 2 previous errors
error[E0308]: mismatched types
--> $DIR/slice-const-param-mismatch.rs:14:35
|
LL | let _: ConstString<"Hello"> = ConstString::<"World">;
| -------------------- ^^^^^^^^^^^^^^^^^^^^^^ expected `"Hello"`, found `"World"`
| |
| expected due to this
|
= note: expected struct `ConstString<"Hello">`
found struct `ConstString<"World">`
error[E0308]: mismatched types
--> $DIR/slice-const-param-mismatch.rs:16:33
|
LL | let _: ConstString<"ℇ㇈↦"> = ConstString::<"ℇ㇈↥">;
| ------------------- ^^^^^^^^^^^^^^^^^^^^^ expected `"ℇ㇈↦"`, found `"ℇ㇈↥"`
| |
| expected due to this
|
= note: expected struct `ConstString<"ℇ㇈↦">`
found struct `ConstString<"ℇ㇈↥">`
error[E0308]: mismatched types
--> $DIR/slice-const-param-mismatch.rs:18:33
|
LL | let _: ConstBytes<b"AAA"> = ConstBytes::<b"BBB">;
| ------------------ ^^^^^^^^^^^^^^^^^^^^ expected `b"AAA"`, found `b"BBB"`
| |
| expected due to this
|
= note: expected struct `ConstBytes<b"AAA">`
found struct `ConstBytes<b"BBB">`
error: aborting due to 5 previous errors
For more information about this error, try `rustc --explain E0308`.

6
tests/ui/const-generics/slice-const-param-mismatch.rs
View File

@ -11,9 +11,9 @@ struct ConstBytes<const T: &'static [u8]>;
pub fn main() {
let _: ConstString<"Hello"> = ConstString::<"Hello">;
let _: ConstString<"Hello"> = ConstString::<"World">; //[full]~ ERROR mismatched types
let _: ConstString<"Hello"> = ConstString::<"World">; //~ ERROR mismatched types
let _: ConstString<"ℇ㇈↦"> = ConstString::<"ℇ㇈↦">;
let _: ConstString<"ℇ㇈↦"> = ConstString::<"ℇ㇈↥">; //[full]~ ERROR mismatched types
let _: ConstString<"ℇ㇈↦"> = ConstString::<"ℇ㇈↥">; //~ ERROR mismatched types
let _: ConstBytes<b"AAA"> = ConstBytes::<{&[0x41, 0x41, 0x41]}>;
let _: ConstBytes<b"AAA"> = ConstBytes::<b"BBB">; //[full]~ ERROR mismatched types
let _: ConstBytes<b"AAA"> = ConstBytes::<b"BBB">; //~ ERROR mismatched types
}

2
tests/ui/consts/const-unsized.rs
View File

@ -18,4 +18,6 @@ static STATIC_BAR: str = *"bar";
fn main() {
println!("{:?} {:?} {:?} {:?}", &CONST_0, &CONST_FOO, &STATIC_1, &STATIC_BAR);
//~^ ERROR: cannot move a value of type `str`
//~| ERROR: cannot move a value of type `dyn Debug + Sync`
}

17
tests/ui/consts/const-unsized.stderr
View File

@ -66,6 +66,19 @@ LL | static STATIC_BAR: str = *"bar";
= help: the trait `Sized` is not implemented for `str`
= note: constant expressions must have a statically known size
error: aborting due to 8 previous errors
error[E0161]: cannot move a value of type `str`
--> $DIR/const-unsized.rs:20:48
|
LL | println!("{:?} {:?} {:?} {:?}", &CONST_0, &CONST_FOO, &STATIC_1, &STATIC_BAR);
| ^^^^^^^^^ the size of `str` cannot be statically determined
For more information about this error, try `rustc --explain E0277`.
error[E0161]: cannot move a value of type `dyn Debug + Sync`
--> $DIR/const-unsized.rs:20:38
|
LL | println!("{:?} {:?} {:?} {:?}", &CONST_0, &CONST_FOO, &STATIC_1, &STATIC_BAR);
| ^^^^^^^ the size of `dyn Debug + Sync` cannot be statically determined
error: aborting due to 10 previous errors
Some errors have detailed explanations: E0161, E0277.
For more information about an error, try `rustc --explain E0161`.

1
tests/ui/cross/cross-fn-cache-hole.rs
View File

@ -28,4 +28,5 @@ fn require<A,B>()
fn main() {
require::<i32, u32>();
//~^ ERROR `i32: Bar<u32>` is not satisfied
}

21
tests/ui/cross/cross-fn-cache-hole.stderr
View File

@ -12,6 +12,25 @@ LL | trait Bar<X> { }
= help: see issue #48214
= help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
error: aborting due to 1 previous error
error[E0277]: the trait bound `i32: Bar<u32>` is not satisfied
--> $DIR/cross-fn-cache-hole.rs:30:15
|
LL | require::<i32, u32>();
| ^^^ the trait `Bar<u32>` is not implemented for `i32`
|
help: this trait has no implementations, consider adding one
--> $DIR/cross-fn-cache-hole.rs:11:1
|
LL | trait Bar<X> { }
| ^^^^^^^^^^^^
note: required by a bound in `require`
--> $DIR/cross-fn-cache-hole.rs:25:14
|
LL | fn require<A,B>()
| ------- required by a bound in this function
LL | where A: Bar<B>
| ^^^^^^ required by this bound in `require`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0277`.

2
tests/ui/error-codes/E0038.rs
View File

@ -5,6 +5,8 @@ trait Trait {
fn call_foo(x: Box<dyn Trait>) {
//~^ ERROR E0038
let y = x.foo();
//~^ ERROR E0038
//~| ERROR E0277
}
fn main() {

30
tests/ui/error-codes/E0038.stderr
View File

@ -13,6 +13,32 @@ LL | fn foo(&self) -> Self;
| ^^^^ ...because method `foo` references the `Self` type in its return type
= help: consider moving `foo` to another trait
error: aborting due to 1 previous error
error[E0038]: the trait `Trait` cannot be made into an object
--> $DIR/E0038.rs:7:13
|
LL | let y = x.foo();
| ^^^^^^^ `Trait` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/E0038.rs:2:22
|
LL | trait Trait {
| ----- this trait cannot be made into an object...
LL | fn foo(&self) -> Self;
| ^^^^ ...because method `foo` references the `Self` type in its return type
= help: consider moving `foo` to another trait
For more information about this error, try `rustc --explain E0038`.
error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time
--> $DIR/E0038.rs:7:9
|
LL | let y = x.foo();
| ^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `dyn Trait`
= note: all local variables must have a statically known size
= help: unsized locals are gated as an unstable feature
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0038, E0277.
For more information about an error, try `rustc --explain E0038`.

2
tests/ui/error-codes/E0059.rs
View File

@ -1,6 +1,8 @@
#![feature(unboxed_closures)]
fn foo<F: Fn<i32>>(f: F) -> F::Output { f(3) } //~ ERROR E0059
//~^ ERROR `i32` is not a tuple
//~| ERROR cannot use call notation
fn main() {
}

17
tests/ui/error-codes/E0059.stderr
View File

@ -7,6 +7,19 @@ LL | fn foo<F: Fn<i32>>(f: F) -> F::Output { f(3) }
note: required by a bound in `Fn`
--> $SRC_DIR/core/src/ops/function.rs:LL:COL
error: aborting due to 1 previous error
error[E0277]: `i32` is not a tuple
--> $DIR/E0059.rs:3:41
|
LL | fn foo<F: Fn<i32>>(f: F) -> F::Output { f(3) }
| ^^^^ the trait `Tuple` is not implemented for `i32`
For more information about this error, try `rustc --explain E0059`.
error[E0059]: cannot use call notation; the first type parameter for the function trait is neither a tuple nor unit
--> $DIR/E0059.rs:3:41
|
LL | fn foo<F: Fn<i32>>(f: F) -> F::Output { f(3) }
| ^^^^
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0059, E0277.
For more information about an error, try `rustc --explain E0059`.

1
tests/ui/error-codes/E0229.rs
View File

@ -15,6 +15,7 @@ fn baz<I>(x: &<I as Foo<A=Bar>>::A) {}
//~| ERROR associated type bindings are not allowed here [E0229]
//~| ERROR associated type bindings are not allowed here [E0229]
//~| ERROR the trait bound `I: Foo` is not satisfied
//~| ERROR the trait bound `I: Foo` is not satisfied
fn main() {
}

13
tests/ui/error-codes/E0229.stderr
View File

@ -31,7 +31,18 @@ help: consider restricting type parameter `I`
LL | fn baz<I: Foo>(x: &<I as Foo<A=Bar>>::A) {}
| +++++
error: aborting due to 4 previous errors
error[E0277]: the trait bound `I: Foo` is not satisfied
--> $DIR/E0229.rs:13:37
|
LL | fn baz<I>(x: &<I as Foo<A=Bar>>::A) {}
| ^^ the trait `Foo` is not implemented for `I`
|
help: consider restricting type parameter `I`
|
LL | fn baz<I: Foo>(x: &<I as Foo<A=Bar>>::A) {}
| +++++
error: aborting due to 5 previous errors
Some errors have detailed explanations: E0229, E0277.
For more information about an error, try `rustc --explain E0229`.

1
tests/ui/extern/issue-36122-accessing-externed-dst.rs vendored
View File

@ -3,4 +3,5 @@ fn main() {
static symbol: [usize]; //~ ERROR: the size for values of type
}
println!("{}", symbol[0]);
//~^ ERROR: extern static is unsafe
}

13
tests/ui/extern/issue-36122-accessing-externed-dst.stderr vendored
View File

@ -6,6 +6,15 @@ LL | static symbol: [usize];
|
= help: the trait `Sized` is not implemented for `[usize]`
error: aborting due to 1 previous error
error[E0133]: use of extern static is unsafe and requires unsafe function or block
--> $DIR/issue-36122-accessing-externed-dst.rs:5:20
|
LL | println!("{}", symbol[0]);
| ^^^^^^ use of extern static
|
= note: extern statics are not controlled by the Rust type system: invalid data, aliasing violations or data races will cause undefined behavior
For more information about this error, try `rustc --explain E0277`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0133, E0277.
For more information about an error, try `rustc --explain E0133`.

2
tests/ui/fn/implied-bounds-unnorm-associated-type-5.rs
View File

@ -18,6 +18,6 @@ where
fn main() {
let x = String::from("Hello World!");
let y = f(&x, ());
drop(x);
drop(x); //~ ERROR cannot move out of `x`
println!("{}", y);
}

17
tests/ui/fn/implied-bounds-unnorm-associated-type-5.stderr
View File

@ -16,6 +16,19 @@ help: consider adding an explicit lifetime bound
LL | impl<'a, T: 'a> Trait<'a> for T {
| ++++
error: aborting due to 1 previous error
error[E0505]: cannot move out of `x` because it is borrowed
--> $DIR/implied-bounds-unnorm-associated-type-5.rs:21:10
|
LL | let x = String::from("Hello World!");
| - binding `x` declared here
LL | let y = f(&x, ());
| -- borrow of `x` occurs here
LL | drop(x);
| ^ move out of `x` occurs here
LL | println!("{}", y);
| - borrow later used here
For more information about this error, try `rustc --explain E0309`.
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0309, E0505.
For more information about an error, try `rustc --explain E0309`.

39
tests/ui/generic-associated-types/gat-in-trait-path.base.stderr
View File

@ -16,6 +16,43 @@ LL | type A<'a> where Self: 'a;
Fooer<T>
Fooy
error: aborting due to 1 previous error
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/gat-in-trait-path.rs:32:5
|
LL | f(Box::new(foo));
| ^^^^^^^^^^^^^ `Foo` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/gat-in-trait-path.rs:10:10
|
LL | trait Foo {
| --- this trait cannot be made into an object...
LL | type A<'a> where Self: 'a;
| ^ ...because it contains the generic associated type `A`
= help: consider moving `A` to another trait
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `Foo` for this new enum and using it instead:
Fooer<T>
Fooy
error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/gat-in-trait-path.rs:32:5
|
LL | f(Box::new(foo));
| ^^^^^^^^^^^^^ `Foo` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/gat-in-trait-path.rs:10:10
|
LL | trait Foo {
| --- this trait cannot be made into an object...
LL | type A<'a> where Self: 'a;
| ^ ...because it contains the generic associated type `A`
= help: consider moving `A` to another trait
= help: the following types implement the trait, consider defining an enum where each variant holds one of these types, implementing `Foo` for this new enum and using it instead:
Fooer<T>
Fooy
= note: required for the cast from `Box<Fooer<{integer}>>` to `Box<(dyn Foo<A = &'a ()> + 'static)>`
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0038`.

2
tests/ui/generic-associated-types/gat-in-trait-path.rs
View File

@ -30,4 +30,6 @@ fn f(_arg : Box<dyn for<'a> Foo<A<'a> = &'a ()>>) {}
fn main() {
let foo = Fooer(5);
f(Box::new(foo));
//[base]~^ the trait `Foo` cannot be made into an object
//[base]~| the trait `Foo` cannot be made into an object
}

1
tests/ui/generic-associated-types/gat-trait-path-missing-lifetime.rs
View File

@ -9,6 +9,7 @@ impl<T> X for T { //~ ERROR: not all trait items implemented
//~^ ERROR missing generics for associated type
//~^^ ERROR missing generics for associated type
//~| ERROR method `foo` has 1 type parameter but its trait declaration has 0 type parameters
//~| ERROR may not live long enough
t
}
}

11
tests/ui/generic-associated-types/gat-trait-path-missing-lifetime.stderr
View File

@ -51,7 +51,16 @@ LL | type Y<'a>;
LL | impl<T> X for T {
| ^^^^^^^^^^^^^^^ missing `Y` in implementation
error: aborting due to 4 previous errors
error: lifetime may not live long enough
--> $DIR/gat-trait-path-missing-lifetime.rs:8:3
|
LL | fn foo<'a, T1: X<Y = T1>>(t : T1) -> T1::Y<'a> {
| ^^^^^^^--^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| | |
| | lifetime `'a` defined here
| requires that `'a` must outlive `'static`
error: aborting due to 5 previous errors
Some errors have detailed explanations: E0046, E0049, E0107.
For more information about an error, try `rustc --explain E0046`.

32
tests/ui/generic-associated-types/trait-objects.base.stderr
View File

@ -13,6 +13,36 @@ LL | type Item<'a> where Self: 'a;
| ^^^^ ...because it contains the generic associated type `Item`
= help: consider moving `Item` to another trait
error: aborting due to 1 previous error
error[E0038]: the trait `StreamingIterator` cannot be made into an object
--> $DIR/trait-objects.rs:15:7
|
LL | x.size_hint().0
| ^^^^^^^^^ `StreamingIterator` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/trait-objects.rs:7:10
|
LL | trait StreamingIterator {
| ----------------- this trait cannot be made into an object...
LL | type Item<'a> where Self: 'a;
| ^^^^ ...because it contains the generic associated type `Item`
= help: consider moving `Item` to another trait
error[E0038]: the trait `StreamingIterator` cannot be made into an object
--> $DIR/trait-objects.rs:15:5
|
LL | x.size_hint().0
| ^^^^^^^^^^^^^ `StreamingIterator` cannot be made into an object
|
note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
--> $DIR/trait-objects.rs:7:10
|
LL | trait StreamingIterator {
| ----------------- this trait cannot be made into an object...
LL | type Item<'a> where Self: 'a;
| ^^^^ ...because it contains the generic associated type `Item`
= help: consider moving `Item` to another trait
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0038`.

2
tests/ui/generic-associated-types/trait-objects.rs
View File

@ -14,6 +14,8 @@ fn min_size(x: &mut dyn for<'a> StreamingIterator<Item<'a> = &'a i32>) -> usize
//[base]~^ the trait `StreamingIterator` cannot be made into an object
x.size_hint().0
//[extended]~^ borrowed data escapes
//[base]~^^ the trait `StreamingIterator` cannot be made into an object
//[base]~| the trait `StreamingIterator` cannot be made into an object
}
fn main() {}

5
tests/ui/impl-trait/object-unsafe-trait-in-return-position-dyn-trait.rs
View File

@ -19,6 +19,7 @@ impl NotObjectSafe for B {
}
fn car() -> dyn NotObjectSafe { //~ ERROR the trait `NotObjectSafe` cannot be made into an object
//~^ ERROR return type cannot have an unboxed trait object
if true {
return A;
}
@ -27,9 +28,9 @@ fn car() -> dyn NotObjectSafe { //~ ERROR the trait `NotObjectSafe` cannot be ma
fn cat() -> Box<dyn NotObjectSafe> { //~ ERROR the trait `NotObjectSafe` cannot be made into an
if true {
return Box::new(A);
return Box::new(A); //~ ERROR cannot be made into an object
}
Box::new(B)
Box::new(B) //~ ERROR cannot be made into an object
}
fn main() {}

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