rust/src/test/ui/issues/issue-47094.rs

#[repr(C, u8)] //~ ERROR conflicting representation hints
enum Foo {
    A,
    B,
}

#[repr(C)] //~ ERROR conflicting representation hints
#[repr(u8)]
enum Bar {
    A,
    B,
}

fn main() {}
- remove syntax::{span_warn!, span_err!, span_fatal!. struct_err!} - remove syntax::{help!, span_help!, span_note!} - remove unused syntax::{struct_span_fatal, struct_span_err_or_warn!, span_err_or_warn!} - lintify check_for_bindings_named_same_as_variants + conflicting_repr_hints - inline syntax::{struct_span_warn!, diagnostic_used!} - stringify_error_code! -> error_code! & use it more. - find_plugin_registrar: de-fatalize an error - de-fatalize metadata errors - move type_error_struct! to rustc_typeck - struct_span_err! -> rustc_errors 2019-12-31 21:25:16 +01:00			`#[repr(C, u8)] //~ ERROR conflicting representation hints`
Check all repr hints together when checking for mis-applied attributes Fixes #47094 Besides fixing that bug, this change has a user-visible effect on the spans in the "incompatible repr hints" warning and another error: they now point at `foo` and/or `bar` in `repr(foo, bar)` instead of the whole attribute. This is sometimes more precise (e.g., `#[repr(C, packed)]` on an enum points at the `packed`) but sometimes not. I moved a compile-fail test to a ui test to illustrate how it now looks in the common case of only one attribute. 2018-01-01 21:42:12 +01:00			`enum Foo {`
			`A,`
			`B,`
			`}`

- remove syntax::{span_warn!, span_err!, span_fatal!. struct_err!} - remove syntax::{help!, span_help!, span_note!} - remove unused syntax::{struct_span_fatal, struct_span_err_or_warn!, span_err_or_warn!} - lintify check_for_bindings_named_same_as_variants + conflicting_repr_hints - inline syntax::{struct_span_warn!, diagnostic_used!} - stringify_error_code! -> error_code! & use it more. - find_plugin_registrar: de-fatalize an error - de-fatalize metadata errors - move type_error_struct! to rustc_typeck - struct_span_err! -> rustc_errors 2019-12-31 21:25:16 +01:00			`#[repr(C)] //~ ERROR conflicting representation hints`
Check all repr hints together when checking for mis-applied attributes Fixes #47094 Besides fixing that bug, this change has a user-visible effect on the spans in the "incompatible repr hints" warning and another error: they now point at `foo` and/or `bar` in `repr(foo, bar)` instead of the whole attribute. This is sometimes more precise (e.g., `#[repr(C, packed)]` on an enum points at the `packed`) but sometimes not. I moved a compile-fail test to a ui test to illustrate how it now looks in the common case of only one attribute. 2018-01-01 21:42:12 +01:00			`#[repr(u8)]`
			`enum Bar {`
			`A,`
			`B,`
			`}`

			`fn main() {}`