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Improve the diagnostics for unused generic parameters

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This commit is contained in:
León Orell Valerian Liehr 2024-02-01 15:58:07 +01:00
parent cb4d9a1902
commit 02320b502d
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GPG key ID: D17A07215F68E713
43 changed files with 370 additions and 170 deletions
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24
compiler/rustc_hir_analysis/src/errors.rs
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@ -1511,3 +1511,27 @@ pub struct NotSupportedDelegation<'a> {
#[label]
pub callee_span: Span,
}
#[derive(Diagnostic)]
#[diag(hir_analysis_unused_generic_parameter)]
pub(crate) struct UnusedGenericParameter {
#[primary_span]
#[label]
pub span: Span,
pub param_name: Ident,
pub param_def_kind: &'static str,
#[subdiagnostic]
pub help: UnusedGenericParameterHelp,
#[help(hir_analysis_const_param_help)]
pub const_param_help: Option<()>,
}
#[derive(Subdiagnostic)]
pub(crate) enum UnusedGenericParameterHelp {
#[help(hir_analysis_unused_generic_parameter_adt_help)]
Adt { param_name: Ident, phantom_data: String },
#[help(hir_analysis_unused_generic_parameter_adt_no_phantom_data_help)]
AdtNoPhantomData { param_name: Ident },
#[help(hir_analysis_unused_generic_parameter_ty_alias_help)]
TyAlias { param_name: Ident },
}