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Add justification to non-static lifetime diagnostic

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David Tolnay 2020-12-26 17:27:02 -08:00
parent 464a409608
commit d31d96bba2
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2 changed files with 2 additions and 2 deletions
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2
impl/src/valid.rs
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@ -191,7 +191,7 @@ fn check_field_attrs(fields: &[Field]) -> Result<()> {
if contains_non_static_lifetime(source_field) {
return Err(Error::new_spanned(
&source_field.original.ty,
"non-static lifetimes are not allowed in the source of an error",
"non-static lifetimes are not allowed in the source of an error, because std::error::Error requires the source is dyn Error + 'static",
));
}
}

2
tests/ui/lifetime.stderr
View file

@ -1,4 +1,4 @@
error: non-static lifetimes are not allowed in the source of an error
error: non-static lifetimes are not allowed in the source of an error, because std::error::Error requires the source is dyn Error + 'static
--> $DIR/lifetime.rs:5:26
|
5 | struct Error<'a>(#[from] Inner<'a>);