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Don't use Default, since the impls are different on wasm

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jackh726 2021-10-01 17:21:39 -04:00
parent b2b34351de
commit 4bd1751d4c
2 changed files with 9 additions and 15 deletions
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4
src/test/ui/suggestions/issue-89333.rs
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@ -6,4 +6,6 @@ fn main() {
test(&|| 0); //~ ERROR the trait bound
}
fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Default {}
trait Trait {}
fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Trait {}

20
src/test/ui/suggestions/issue-89333.stderr
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@ -1,22 +1,14 @@
error[E0277]: the trait bound `for<'a> &'a {integer}: Default` is not satisfied
--> $DIR/issue-89333.rs:6:10
error[E0277]: the trait bound `for<'a> &'a _: Trait` is not satisfied
--> $DIR/issue-89333.rs:6:5
|
LL | test(&|| 0);
| ---- ^^^^^ the trait `for<'a> Default` is not implemented for `&'a {integer}`
| |
| required by a bound introduced by this call
| ^^^^ the trait `for<'a> Trait` is not implemented for `&'a _`
|
= help: the following implementations were found:
<&CStr as Default>
<&OsStr as Default>
<&[T] as Default>
<&mut [T] as Default>
and 217 others
note: required by a bound in `test`
--> $DIR/issue-89333.rs:9:55
--> $DIR/issue-89333.rs:11:55
|
LL | fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Default {}
| ^^^^^^^ required by this bound in `test`
LL | fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Trait {}
| ^^^^^ required by this bound in `test`
error: aborting due to previous error