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UPDATE - mention of Diagnostic derive on enums 

Updated Diagnostic text to use the same language used in Subdiagnostic
This commit is contained in:
Jhonny Bill Mena 2022-10-31 10:27:21 -04:00 committed by David Wood
parent 431fcf5e20
commit 43e20eff99
1 changed files with 5 additions and 3 deletions
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8
src/diagnostics/diagnostic-structs.md
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@ -28,8 +28,10 @@ pub struct FieldAlreadyDeclared {
} }
``` ```
`Diagnostic` can only be applied to structs. Every `Diagnostic` `Diagnostic` can only be applied to structs and enums.
has to have one attribute, `#[diag(...)]`, applied to the struct itself. Attributes that are placed on the type for structs are placed on each
variants for enums (or vice versa). Each `Diagnostic` has to have one
attribute, `#[diag(...)]`, applied to the struct or each enum variant.
If an error has an error code (e.g. "E0624"), then that can be specified using If an error has an error code (e.g. "E0624"), then that can be specified using
the `code` sub-attribute. Specifying a `code` isn't mandatory, but if you are the `code` sub-attribute. Specifying a `code` isn't mandatory, but if you are
@ -243,7 +245,7 @@ pub enum ExpectedReturnTypeLabel<'tcx> {
} }
``` ```
Unlike `Diagnostic`, `Subdiagnostic` can be applied to structs or Like `Diagnostic`, `Subdiagnostic` can be applied to structs or
enums. Attributes that are placed on the type for structs are placed on each enums. Attributes that are placed on the type for structs are placed on each
variants for enums (or vice versa). Each `Subdiagnostic` should have one variants for enums (or vice versa). Each `Subdiagnostic` should have one
attribute applied to the struct or each variant, one of: attribute applied to the struct or each variant, one of: