rust/tests/ui/derives/derives-span-PartialEq-enum.rs

// This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'


struct Error;

#[derive(PartialEq)]
enum Enum {
   A(
     Error //~ ERROR
   )
}

fn main() {}
std: Rename {Eq,Ord} to Partial{Eq,Ord} This is part of the ongoing renaming of the equality traits. See #12517 for more details. All code using Eq/Ord will temporarily need to move to Partial{Eq,Ord} or the Total{Eq,Ord} traits. The Total traits will soon be renamed to {Eq,Ord}. cc #12517 [breaking-change] 2014-05-30 00:45:07 +00:00			`// This file was auto-generated using 'src/etc/generate-deriving-span-tests.py'`
Add autogenerated tests for the spans of various derived traits. 2014-01-27 04:28:04 +00:00
syntax::ext: Make type errors in deriving point to the field itself. This rearranges the deriving code so that #[deriving] a trait on a field that doesn't implement that trait will point to the field in question, e.g. struct NotEq; // doesn't implement Eq #[deriving(Eq)] struct Foo { ok: int, also_ok: ~str, bad: NotEq // error points here. } Unfortunately, this means the error is disconnected from the `deriving` itself but there's no current way to pass that information through to rustc except via the spans, at the moment. Fixes #7724. 2013-11-07 07:49:01 +00:00
Add autogenerated tests for the spans of various derived traits. 2014-01-27 04:28:04 +00:00			`struct Error;`
syntax::ext: Make type errors in deriving point to the field itself. This rearranges the deriving code so that #[deriving] a trait on a field that doesn't implement that trait will point to the field in question, e.g. struct NotEq; // doesn't implement Eq #[deriving(Eq)] struct Foo { ok: int, also_ok: ~str, bad: NotEq // error points here. } Unfortunately, this means the error is disconnected from the `deriving` itself but there's no current way to pass that information through to rustc except via the spans, at the moment. Fixes #7724. 2013-11-07 07:49:01 +00:00
Use `derive` rather than `deriving` in tests 2014-12-31 04:32:49 +00:00			`#[derive(PartialEq)]`
Add autogenerated tests for the spans of various derived traits. 2014-01-27 04:28:04 +00:00			`enum Enum {`
			`A(`
			`Error //~ ERROR`
Don't derive `PartialEq::ne`. Currently we skip deriving `PartialEq::ne` for C-like (fieldless) enums and empty structs, thus reyling on the default `ne`. This behaviour is unnecessarily conservative, because the `PartialEq` docs say this: > Implementations must ensure that eq and ne are consistent with each other: > > `a != b` if and only if `!(a == b)` (ensured by the default > implementation). This means that the default implementation (`!(a == b)`) is always good enough. So this commit changes things such that `ne` is never derived. The motivation for this change is that not deriving `ne` reduces compile times and binary sizes. Observable behaviour may change if a user has defined a type `A` with an inconsistent `PartialEq` and then defines a type `B` that contains an `A` and also derives `PartialEq`. Such code is already buggy and preserving bug-for-bug compatibility isn't necessary. Two side-effects of the change: - There is only one error message produced for types where `PartialEq` cannot be derived, instead of two. - For coverage reports, some warnings about generated `ne` methods not being executed have disappeared. Both side-effects seem fine, and possibly preferable. 2022-06-22 06:11:14 +00:00			`)`
syntax::ext: Make type errors in deriving point to the field itself. This rearranges the deriving code so that #[deriving] a trait on a field that doesn't implement that trait will point to the field in question, e.g. struct NotEq; // doesn't implement Eq #[deriving(Eq)] struct Foo { ok: int, also_ok: ~str, bad: NotEq // error points here. } Unfortunately, this means the error is disconnected from the `deriving` itself but there's no current way to pass that information through to rustc except via the spans, at the moment. Fixes #7724. 2013-11-07 07:49:01 +00:00			`}`

Add autogenerated tests for the spans of various derived traits. 2014-01-27 04:28:04 +00:00			`fn main() {}`