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Remove some more unused codepaths in (region) error reporting

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This commit is contained in:
Michael Goulet 2023-11-23 06:40:40 +00:00
parent 0f9ab6371d
commit 3e769c55b8
2 changed files with 2 additions and 7 deletions
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6
compiler/rustc_infer/src/infer/error_reporting/mod.rs
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@ -2909,9 +2909,6 @@ impl<'tcx> ObligationCauseExt<'tcx> for ObligationCause<'tcx> {
CompareImplItemObligation { kind: ty::AssocKind::Const, .. } => {
"const is compatible with trait"
}
ExprAssignable => "expression is assignable",
IfExpression { .. } => "`if` and `else` have incompatible types",
IfExpressionWithNoElse => "`if` missing an `else` returns `()`",
MainFunctionType => "`main` function has the correct type",
StartFunctionType => "`#[start]` function has the correct type",
LangFunctionType(_) => "lang item function has the correct type",
@ -2932,9 +2929,6 @@ impl IntoDiagnosticArg for ObligationCauseAsDiagArg<'_> {
CompareImplItemObligation { kind: ty::AssocKind::Fn, .. } => "method_compat",
CompareImplItemObligation { kind: ty::AssocKind::Type, .. } => "type_compat",
CompareImplItemObligation { kind: ty::AssocKind::Const, .. } => "const_compat",
ExprAssignable => "expr_assignable",
IfExpression { .. } => "if_else_different",
IfExpressionWithNoElse => "no_else",
MainFunctionType => "fn_main_correct_type",
StartFunctionType => "fn_start_correct_type",
LangFunctionType(_) => "fn_lang_correct_type",

3
compiler/rustc_middle/src/traits/mod.rs
View File

@ -340,7 +340,8 @@ pub enum ObligationCauseCode<'tcx> {
parent_code: InternedObligationCauseCode<'tcx>,
},
/// Error derived when matching traits/impls; see ObligationCause for more details
/// Error derived when checking an impl item is compatible with
/// its corresponding trait item's definition
CompareImplItemObligation {
impl_item_def_id: LocalDefId,
trait_item_def_id: DefId,