diff options
Diffstat (limited to 'src/test/ui/object-safety')
35 files changed, 0 insertions, 873 deletions
diff --git a/src/test/ui/object-safety/issue-102762.rs b/src/test/ui/object-safety/issue-102762.rs deleted file mode 100644 index 4f4c36345..000000000 --- a/src/test/ui/object-safety/issue-102762.rs +++ /dev/null @@ -1,26 +0,0 @@ -// compile-flags: --crate-type=lib -// This test checks that the `where_clauses_object_safety` lint does not cause -// other object safety *hard errors* to be suppressed, because we currently -// only emit one object safety error per trait... - -use std::future::Future; -use std::pin::Pin; - -pub trait Fetcher: Send + Sync { - fn get<'a>(self: &'a Box<Self>) -> Pin<Box<dyn Future<Output = Vec<u8>> + 'a>> - where - Self: Sync, - { - todo!() - } -} - -fn fetcher() -> Box<dyn Fetcher> { - //~^ ERROR the trait `Fetcher` cannot be made into an object - todo!() -} - -pub fn foo() { - let fetcher = fetcher(); - let _ = fetcher.get(); -} diff --git a/src/test/ui/object-safety/issue-102762.stderr b/src/test/ui/object-safety/issue-102762.stderr deleted file mode 100644 index 5041ebe77..000000000 --- a/src/test/ui/object-safety/issue-102762.stderr +++ /dev/null @@ -1,20 +0,0 @@ -error[E0038]: the trait `Fetcher` cannot be made into an object - --> $DIR/issue-102762.rs:18:21 - | -LL | fn get<'a>(self: &'a Box<Self>) -> Pin<Box<dyn Future<Output = Vec<u8>> + 'a>> - | ------------- help: consider changing method `get`'s `self` parameter to be `&self`: `&Self` -... -LL | fn fetcher() -> Box<dyn Fetcher> { - | ^^^^^^^^^^^ `Fetcher` 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/issue-102762.rs:10:22 - | -LL | pub trait Fetcher: Send + Sync { - | ------- this trait cannot be made into an object... -LL | fn get<'a>(self: &'a Box<Self>) -> Pin<Box<dyn Future<Output = Vec<u8>> + 'a>> - | ^^^^^^^^^^^^^ ...because method `get`'s `self` parameter cannot be dispatched on - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/issue-102933.rs b/src/test/ui/object-safety/issue-102933.rs deleted file mode 100644 index 843391cff..000000000 --- a/src/test/ui/object-safety/issue-102933.rs +++ /dev/null @@ -1,25 +0,0 @@ -// check-pass - -use std::future::Future; - -pub trait Service { - type Response; - type Future: Future<Output = Self::Response>; -} - -pub trait A1: Service<Response = i32> {} - -pub trait A2: Service<Future = Box<dyn Future<Output = i32>>> + A1 { - fn foo(&self) {} -} - -pub trait B1: Service<Future = Box<dyn Future<Output = i32>>> {} - -pub trait B2: Service<Response = i32> + B1 { - fn foo(&self) {} -} - -fn main() { - let x: &dyn A2 = todo!(); - let x: &dyn B2 = todo!(); -} diff --git a/src/test/ui/object-safety/issue-19538.rs b/src/test/ui/object-safety/issue-19538.rs deleted file mode 100644 index 7054ef41b..000000000 --- a/src/test/ui/object-safety/issue-19538.rs +++ /dev/null @@ -1,20 +0,0 @@ -trait Foo { - fn foo<T>(&self, val: T); -} - -trait Bar: Foo { } - -pub struct Thing; - -impl Foo for Thing { - fn foo<T>(&self, val: T) { } -} - -impl Bar for Thing { } - -fn main() { - let mut thing = Thing; - let test: &mut dyn Bar = &mut thing; - //~^ ERROR E0038 - //~| ERROR E0038 -} diff --git a/src/test/ui/object-safety/issue-19538.stderr b/src/test/ui/object-safety/issue-19538.stderr deleted file mode 100644 index 8420637b3..000000000 --- a/src/test/ui/object-safety/issue-19538.stderr +++ /dev/null @@ -1,37 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/issue-19538.rs:17:15 - | -LL | let test: &mut dyn Bar = &mut thing; - | ^^^^^^^^^^^^ `Bar` 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/issue-19538.rs:2:8 - | -LL | fn foo<T>(&self, val: T); - | ^^^ ...because method `foo` has generic type parameters -... -LL | trait Bar: Foo { } - | --- this trait cannot be made into an object... - = help: consider moving `foo` to another trait - -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/issue-19538.rs:17:30 - | -LL | let test: &mut dyn Bar = &mut thing; - | ^^^^^^^^^^ `Bar` 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/issue-19538.rs:2:8 - | -LL | fn foo<T>(&self, val: T); - | ^^^ ...because method `foo` has generic type parameters -... -LL | trait Bar: Foo { } - | --- this trait cannot be made into an object... - = help: consider moving `foo` to another trait - = note: required for `&mut Thing` to implement `CoerceUnsized<&mut dyn Bar>` - = note: required by cast to type `&mut dyn Bar` - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-associated-consts.curr.stderr b/src/test/ui/object-safety/object-safety-associated-consts.curr.stderr deleted file mode 100644 index 5f94c9284..000000000 --- a/src/test/ui/object-safety/object-safety-associated-consts.curr.stderr +++ /dev/null @@ -1,18 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-associated-consts.rs:12:31 - | -LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-associated-consts.rs:9:11 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | const X: usize; - | ^ ...because it contains this associated `const` - = help: consider moving `X` to another trait - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-associated-consts.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-associated-consts.object_safe_for_dispatch.stderr deleted file mode 100644 index f44de07d5..000000000 --- a/src/test/ui/object-safety/object-safety-associated-consts.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,20 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-associated-consts.rs:14:5 - | -LL | t - | ^ `Bar` 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-associated-consts.rs:9:11 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | const X: usize; - | ^ ...because it contains this associated `const` - = help: consider moving `X` to another trait - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-associated-consts.rs b/src/test/ui/object-safety/object-safety-associated-consts.rs deleted file mode 100644 index e1a772e5a..000000000 --- a/src/test/ui/object-safety/object-safety-associated-consts.rs +++ /dev/null @@ -1,19 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// from traits with associated consts. -// -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - -trait Bar { - const X: usize; -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-bounds.rs b/src/test/ui/object-safety/object-safety-bounds.rs deleted file mode 100644 index 44bd36932..000000000 --- a/src/test/ui/object-safety/object-safety-bounds.rs +++ /dev/null @@ -1,12 +0,0 @@ -// Traits with bounds mentioning `Self` are not object safe - -trait X { - type U: PartialEq<Self>; -} - -fn f() -> Box<dyn X<U = u32>> { - //~^ ERROR the trait `X` cannot be made into an object - loop {} -} - -fn main() {} diff --git a/src/test/ui/object-safety/object-safety-bounds.stderr b/src/test/ui/object-safety/object-safety-bounds.stderr deleted file mode 100644 index 29ffb5448..000000000 --- a/src/test/ui/object-safety/object-safety-bounds.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0038]: the trait `X` cannot be made into an object - --> $DIR/object-safety-bounds.rs:7:15 - | -LL | fn f() -> Box<dyn X<U = u32>> { - | ^^^^^^^^^^^^^^ `X` 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-bounds.rs:4:13 - | -LL | trait X { - | - this trait cannot be made into an object... -LL | type U: PartialEq<Self>; - | ^^^^^^^^^^^^^^^ ...because it uses `Self` as a type parameter - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-by-value-self-use.rs b/src/test/ui/object-safety/object-safety-by-value-self-use.rs deleted file mode 100644 index 8e93c5382..000000000 --- a/src/test/ui/object-safety/object-safety-by-value-self-use.rs +++ /dev/null @@ -1,18 +0,0 @@ -// Check that while a trait with by-value self is object-safe, we -// can't actually invoke it from an object (yet...?). - -#![feature(rustc_attrs)] - -trait Bar { - fn bar(self); -} - -trait Baz { - fn baz(self: Self); -} - -fn use_bar(t: Box<dyn Bar>) { - t.bar() //~ ERROR cannot move a value of type `dyn Bar` -} - -fn main() { } diff --git a/src/test/ui/object-safety/object-safety-by-value-self-use.stderr b/src/test/ui/object-safety/object-safety-by-value-self-use.stderr deleted file mode 100644 index 94fdcdf26..000000000 --- a/src/test/ui/object-safety/object-safety-by-value-self-use.stderr +++ /dev/null @@ -1,9 +0,0 @@ -error[E0161]: cannot move a value of type `dyn Bar` - --> $DIR/object-safety-by-value-self-use.rs:15:5 - | -LL | t.bar() - | ^^^^^^^ the size of `dyn Bar` cannot be statically determined - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0161`. diff --git a/src/test/ui/object-safety/object-safety-by-value-self.rs b/src/test/ui/object-safety/object-safety-by-value-self.rs deleted file mode 100644 index c74a4d1cb..000000000 --- a/src/test/ui/object-safety/object-safety-by-value-self.rs +++ /dev/null @@ -1,46 +0,0 @@ -// Check that a trait with by-value self is considered object-safe. - -// build-pass (FIXME(62277): could be check-pass?) -#![allow(dead_code)] -#![allow(trivial_casts)] - -trait Bar { - fn bar(self); -} - -trait Baz { - fn baz(self: Self); -} - -trait Quux { - // Legal because of the where clause: - fn baz(self: Self) where Self : Sized; -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - t // legal -} - -fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar { - t as &dyn Bar // legal -} - -fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - t // legal -} - -fn make_baz_explicit<T:Baz>(t: &T) -> &dyn Baz { - t as &dyn Baz // legal -} - -fn make_quux<T:Quux>(t: &T) -> &dyn Quux { - t -} - -fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux { - t as &dyn Quux -} - - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-generics.curr.stderr b/src/test/ui/object-safety/object-safety-generics.curr.stderr deleted file mode 100644 index 458103752..000000000 --- a/src/test/ui/object-safety/object-safety-generics.curr.stderr +++ /dev/null @@ -1,33 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-generics.rs:18:31 - | -LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-generics.rs:10:8 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar<T>(&self, t: T); - | ^^^ ...because method `bar` has generic type parameters - = help: consider moving `bar` to another trait - -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-generics.rs:24:40 - | -LL | fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-generics.rs:10:8 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar<T>(&self, t: T); - | ^^^ ...because method `bar` has generic type parameters - = help: consider moving `bar` to another trait - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-generics.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-generics.object_safe_for_dispatch.stderr deleted file mode 100644 index 9a2d472d5..000000000 --- a/src/test/ui/object-safety/object-safety-generics.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,37 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-generics.rs:20:5 - | -LL | t - | ^ `Bar` 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-generics.rs:10:8 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar<T>(&self, t: T); - | ^^^ ...because method `bar` has generic type parameters - = help: consider moving `bar` to another trait - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-generics.rs:26:5 - | -LL | t as &dyn Bar - | ^ `Bar` 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-generics.rs:10:8 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar<T>(&self, t: T); - | ^^^ ...because method `bar` has generic type parameters - = help: consider moving `bar` to another trait - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-generics.rs b/src/test/ui/object-safety/object-safety-generics.rs deleted file mode 100644 index 63dcd1699..000000000 --- a/src/test/ui/object-safety/object-safety-generics.rs +++ /dev/null @@ -1,39 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// from traits with generic methods, unless `where Self : Sized` is -// present. -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - - -trait Bar { - fn bar<T>(&self, t: T); -} - -trait Quux { - fn bar<T>(&self, t: T) - where Self : Sized; -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t as &dyn Bar - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn make_quux<T:Quux>(t: &T) -> &dyn Quux { - t -} - -fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux { - t as &dyn Quux -} - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-issue-22040.rs b/src/test/ui/object-safety/object-safety-issue-22040.rs deleted file mode 100644 index 1fc5c5442..000000000 --- a/src/test/ui/object-safety/object-safety-issue-22040.rs +++ /dev/null @@ -1,42 +0,0 @@ -// Regression test for #22040. - -use std::fmt::Debug; - -trait Expr: Debug + PartialEq { - fn print_element_count(&self); -} - -//#[derive(PartialEq)] -#[derive(Debug)] -struct SExpr<'x> { - elements: Vec<Box<dyn Expr + 'x>>, - //~^ ERROR E0038 -} - -impl<'x> PartialEq for SExpr<'x> { - fn eq(&self, other:&SExpr<'x>) -> bool { - println!("L1: {} L2: {}", self.elements.len(), other.elements.len()); - - let result = self.elements.len() == other.elements.len(); - - println!("Got compare {}", result); - return result; - } -} - -impl <'x> SExpr<'x> { - fn new() -> SExpr<'x> { return SExpr{elements: Vec::new(),}; } -} - -impl <'x> Expr for SExpr<'x> { - fn print_element_count(&self) { - println!("element count: {}", self.elements.len()); - } -} - -fn main() { - let a: Box<dyn Expr> = Box::new(SExpr::new()); - let b: Box<dyn Expr> = Box::new(SExpr::new()); - - // assert_eq!(a , b); -} diff --git a/src/test/ui/object-safety/object-safety-issue-22040.stderr b/src/test/ui/object-safety/object-safety-issue-22040.stderr deleted file mode 100644 index 0262d5362..000000000 --- a/src/test/ui/object-safety/object-safety-issue-22040.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0038]: the trait `Expr` cannot be made into an object - --> $DIR/object-safety-issue-22040.rs:12:23 - | -LL | elements: Vec<Box<dyn Expr + 'x>>, - | ^^^^^^^^^^^^^ `Expr` 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-issue-22040.rs:5:21 - | -LL | trait Expr: Debug + PartialEq { - | ---- ^^^^^^^^^ ...because it uses `Self` as a type parameter - | | - | this trait cannot be made into an object... - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-mentions-Self.curr.stderr b/src/test/ui/object-safety/object-safety-mentions-Self.curr.stderr deleted file mode 100644 index de430a89b..000000000 --- a/src/test/ui/object-safety/object-safety-mentions-Self.curr.stderr +++ /dev/null @@ -1,33 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-mentions-Self.rs:22:31 - | -LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-mentions-Self.rs:11:22 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar(&self, x: &Self); - | ^^^^^ ...because method `bar` references the `Self` type in this parameter - = help: consider moving `bar` to another trait - -error[E0038]: the trait `Baz` cannot be made into an object - --> $DIR/object-safety-mentions-Self.rs:28:31 - | -LL | fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - | ^^^^^^^ `Baz` 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-mentions-Self.rs:15:22 - | -LL | trait Baz { - | --- this trait cannot be made into an object... -LL | fn baz(&self) -> Self; - | ^^^^ ...because method `baz` references the `Self` type in its return type - = help: consider moving `baz` to another trait - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-mentions-Self.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-mentions-Self.object_safe_for_dispatch.stderr deleted file mode 100644 index 40a298bd1..000000000 --- a/src/test/ui/object-safety/object-safety-mentions-Self.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,37 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-mentions-Self.rs:24:5 - | -LL | t - | ^ `Bar` 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-mentions-Self.rs:11:22 - | -LL | trait Bar { - | --- this trait cannot be made into an object... -LL | fn bar(&self, x: &Self); - | ^^^^^ ...because method `bar` references the `Self` type in this parameter - = help: consider moving `bar` to another trait - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error[E0038]: the trait `Baz` cannot be made into an object - --> $DIR/object-safety-mentions-Self.rs:30:5 - | -LL | t - | ^ `Baz` 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-mentions-Self.rs:15:22 - | -LL | trait Baz { - | --- this trait cannot be made into an object... -LL | fn baz(&self) -> Self; - | ^^^^ ...because method `baz` references the `Self` type in its return type - = help: consider moving `baz` to another trait - = note: required for `&T` to implement `CoerceUnsized<&dyn Baz>` - = note: required by cast to type `&dyn Baz` - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-mentions-Self.rs b/src/test/ui/object-safety/object-safety-mentions-Self.rs deleted file mode 100644 index 412d16ff3..000000000 --- a/src/test/ui/object-safety/object-safety-mentions-Self.rs +++ /dev/null @@ -1,42 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// form traits that make use of `Self` in an argument or return -// position, unless `where Self : Sized` is present.. -// -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - - -trait Bar { - fn bar(&self, x: &Self); -} - -trait Baz { - fn baz(&self) -> Self; -} - -trait Quux { - fn quux(&self, s: &Self) -> Self where Self : Sized; -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn make_quux<T:Quux>(t: &T) -> &dyn Quux { - t -} - -fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux { - t as &dyn Quux -} - -fn main() {} diff --git a/src/test/ui/object-safety/object-safety-no-static.curr.stderr b/src/test/ui/object-safety/object-safety-no-static.curr.stderr deleted file mode 100644 index 1b025229e..000000000 --- a/src/test/ui/object-safety/object-safety-no-static.curr.stderr +++ /dev/null @@ -1,25 +0,0 @@ -error[E0038]: the trait `Foo` cannot be made into an object - --> $DIR/object-safety-no-static.rs:12:22 - | -LL | fn diverges() -> Box<dyn 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/object-safety-no-static.rs:9:8 - | -LL | trait Foo { - | --- this trait cannot be made into an object... -LL | fn foo() {} - | ^^^ ...because associated function `foo` has no `self` parameter -help: consider turning `foo` into a method by giving it a `&self` argument - | -LL | fn foo(&self) {} - | +++++ -help: alternatively, consider constraining `foo` so it does not apply to trait objects - | -LL | fn foo() where Self: Sized {} - | +++++++++++++++++ - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-no-static.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-no-static.object_safe_for_dispatch.stderr deleted file mode 100644 index da87b58c9..000000000 --- a/src/test/ui/object-safety/object-safety-no-static.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,27 +0,0 @@ -error[E0038]: the trait `Foo` cannot be made into an object - --> $DIR/object-safety-no-static.rs:22:27 - | -LL | let b: Box<dyn Foo> = Box::new(Bar); - | ^^^^^^^^^^^^^ `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-no-static.rs:9:8 - | -LL | trait Foo { - | --- this trait cannot be made into an object... -LL | fn foo() {} - | ^^^ ...because associated function `foo` has no `self` parameter - = note: required for `Box<Bar>` to implement `CoerceUnsized<Box<dyn Foo>>` - = note: required by cast to type `Box<dyn Foo>` -help: consider turning `foo` into a method by giving it a `&self` argument - | -LL | fn foo(&self) {} - | +++++ -help: alternatively, consider constraining `foo` so it does not apply to trait objects - | -LL | fn foo() where Self: Sized {} - | +++++++++++++++++ - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-no-static.rs b/src/test/ui/object-safety/object-safety-no-static.rs deleted file mode 100644 index 03b622174..000000000 --- a/src/test/ui/object-safety/object-safety-no-static.rs +++ /dev/null @@ -1,24 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// from traits with static methods. -// -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - -trait Foo { - fn foo() {} -} - -fn diverges() -> Box<dyn Foo> { - //[curr]~^ ERROR E0038 - loop { } -} - -struct Bar; - -impl Foo for Bar {} - -fn main() { - let b: Box<dyn Foo> = Box::new(Bar); - //[object_safe_for_dispatch]~^ ERROR E0038 -} diff --git a/src/test/ui/object-safety/object-safety-phantom-fn.rs b/src/test/ui/object-safety/object-safety-phantom-fn.rs deleted file mode 100644 index 3ffeb81c1..000000000 --- a/src/test/ui/object-safety/object-safety-phantom-fn.rs +++ /dev/null @@ -1,22 +0,0 @@ -// Check that `Self` appearing in a phantom fn does not make a trait not object safe. - -// build-pass (FIXME(62277): could be check-pass?) -#![allow(dead_code)] - -trait Baz { -} - -trait Bar<T> { -} - -fn make_bar<T:Bar<u32>>(t: &T) -> &dyn Bar<u32> { - t -} - -fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - t -} - - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-sized-2.curr.stderr b/src/test/ui/object-safety/object-safety-sized-2.curr.stderr deleted file mode 100644 index b01926412..000000000 --- a/src/test/ui/object-safety/object-safety-sized-2.curr.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-sized-2.rs:14:31 - | -LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-sized-2.rs:9:18 - | -LL | trait Bar - | --- this trait cannot be made into an object... -LL | where Self : Sized - | ^^^^^ ...because it requires `Self: Sized` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-sized-2.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-sized-2.object_safe_for_dispatch.stderr deleted file mode 100644 index 6c29c8d5f..000000000 --- a/src/test/ui/object-safety/object-safety-sized-2.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-sized-2.rs:16:5 - | -LL | t - | ^ `Bar` 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-sized-2.rs:9:18 - | -LL | trait Bar - | --- this trait cannot be made into an object... -LL | where Self : Sized - | ^^^^^ ...because it requires `Self: Sized` - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-sized-2.rs b/src/test/ui/object-safety/object-safety-sized-2.rs deleted file mode 100644 index 1e79b8cd9..000000000 --- a/src/test/ui/object-safety/object-safety-sized-2.rs +++ /dev/null @@ -1,21 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// from traits where `Self : Sized`. -// -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - -trait Bar - where Self : Sized -{ - fn bar<T>(&self, t: T); -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-sized.curr.stderr b/src/test/ui/object-safety/object-safety-sized.curr.stderr deleted file mode 100644 index 974813121..000000000 --- a/src/test/ui/object-safety/object-safety-sized.curr.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-sized.rs:12:31 - | -LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - | ^^^^^^^ `Bar` 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-sized.rs:8:13 - | -LL | trait Bar : Sized { - | --- ^^^^^ ...because it requires `Self: Sized` - | | - | this trait cannot be made into an object... - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-sized.object_safe_for_dispatch.stderr b/src/test/ui/object-safety/object-safety-sized.object_safe_for_dispatch.stderr deleted file mode 100644 index 70a44ed61..000000000 --- a/src/test/ui/object-safety/object-safety-sized.object_safe_for_dispatch.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error[E0038]: the trait `Bar` cannot be made into an object - --> $DIR/object-safety-sized.rs:14:5 - | -LL | t - | ^ `Bar` 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-sized.rs:8:13 - | -LL | trait Bar : Sized { - | --- ^^^^^ ...because it requires `Self: Sized` - | | - | this trait cannot be made into an object... - = note: required for `&T` to implement `CoerceUnsized<&dyn Bar>` - = note: required by cast to type `&dyn Bar` - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-sized.rs b/src/test/ui/object-safety/object-safety-sized.rs deleted file mode 100644 index b424b892d..000000000 --- a/src/test/ui/object-safety/object-safety-sized.rs +++ /dev/null @@ -1,19 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// from traits where `Self : Sized`. -// -// revisions: curr object_safe_for_dispatch - -#![cfg_attr(object_safe_for_dispatch, feature(object_safe_for_dispatch))] - -trait Bar : Sized { - fn bar<T>(&self, t: T); -} - -fn make_bar<T:Bar>(t: &T) -> &dyn Bar { - //[curr]~^ ERROR E0038 - t - //[object_safe_for_dispatch]~^ ERROR E0038 -} - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.rs b/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.rs deleted file mode 100644 index 14e00d2ef..000000000 --- a/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.rs +++ /dev/null @@ -1,15 +0,0 @@ -//~ ERROR the parameter type `Self` may not live long enough - -trait GatTrait { - type Gat<'a> - where - Self: 'a; -} - -trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> { - fn c(&self) -> dyn SuperTrait<T>; - //~^ ERROR associated item referring to unboxed trait object for its own trait - //~| ERROR the trait `SuperTrait` cannot be made into an object -} - -fn main() {} diff --git a/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.stderr b/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.stderr deleted file mode 100644 index f05b0cd65..000000000 --- a/src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.stderr +++ /dev/null @@ -1,43 +0,0 @@ -error[E0311]: the parameter type `Self` may not live long enough - | - = help: consider adding an explicit lifetime bound `Self: 'a`... - = note: ...so that the type `Self` will meet its required lifetime bounds... -note: ...that is required by this bound - --> $DIR/object-safety-supertrait-mentions-GAT.rs:6:15 - | -LL | Self: 'a; - | ^^ - -error: associated item referring to unboxed trait object for its own trait - --> $DIR/object-safety-supertrait-mentions-GAT.rs:10:20 - | -LL | trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> { - | ---------- in this trait -LL | fn c(&self) -> dyn SuperTrait<T>; - | ^^^^^^^^^^^^^^^^^ - | -help: you might have meant to use `Self` to refer to the implementing type - | -LL | fn c(&self) -> Self; - | ~~~~ - -error[E0038]: the trait `SuperTrait` cannot be made into an object - --> $DIR/object-safety-supertrait-mentions-GAT.rs:10:20 - | -LL | fn c(&self) -> dyn SuperTrait<T>; - | ^^^^^^^^^^^^^^^^^ `SuperTrait` 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-supertrait-mentions-GAT.rs:4:10 - | -LL | type Gat<'a> - | ^^^ ...because it contains the generic associated type `Gat` -... -LL | trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> { - | ---------- this trait cannot be made into an object... - = help: consider moving `Gat` to another trait - -error: aborting due to 3 previous errors - -Some errors have detailed explanations: E0038, E0311. -For more information about an error, try `rustc --explain E0038`. diff --git a/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.rs b/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.rs deleted file mode 100644 index 2445b33c8..000000000 --- a/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.rs +++ /dev/null @@ -1,21 +0,0 @@ -// Check that we correctly prevent users from making trait objects -// form traits that make use of `Self` in an argument or return position. - -trait Bar<T> { - fn bar(&self, x: &T); -} - -trait Baz : Bar<Self> { -} - -fn make_bar<T:Bar<u32>>(t: &T) -> &dyn Bar<u32> { - t -} - -fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - //~^ ERROR E0038 - t -} - -fn main() { -} diff --git a/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.stderr b/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.stderr deleted file mode 100644 index a106ab995..000000000 --- a/src/test/ui/object-safety/object-safety-supertrait-mentions-Self.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error[E0038]: the trait `Baz` cannot be made into an object - --> $DIR/object-safety-supertrait-mentions-Self.rs:15:31 - | -LL | fn make_baz<T:Baz>(t: &T) -> &dyn Baz { - | ^^^^^^^ `Baz` 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-supertrait-mentions-Self.rs:8:13 - | -LL | trait Baz : Bar<Self> { - | --- ^^^^^^^^^ ...because it uses `Self` as a type parameter - | | - | this trait cannot be made into an object... - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0038`. |