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disallow unsized enums

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This commit is contained in:
Tim Neumann 2016-10-12 12:40:48 +02:00
parent ac468b67bf
commit f1695238ca
2 changed files with 2 additions and 3 deletions
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3
src/librustc/traits/error_reporting.rs
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@ -856,8 +856,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
trait_name)); trait_name));
} }
ObligationCauseCode::FieldSized => { ObligationCauseCode::FieldSized => {
err.note("only the last field of a struct or enum variant \ err.note("only the last field of a struct may have a dynamically sized type");
may have a dynamically sized type");
} }
ObligationCauseCode::ConstSized => { ObligationCauseCode::ConstSized => {
err.note("constant expressions must have a statically known size"); err.note("constant expressions must have a statically known size");

2
src/librustc_typeck/check/wfcheck.rs
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@ -150,7 +150,7 @@ impl<'ccx, 'gcx> CheckTypeWellFormedVisitor<'ccx, 'gcx> {
self.check_variances_for_type_defn(item, ast_generics); self.check_variances_for_type_defn(item, ast_generics);
} }
hir::ItemEnum(ref enum_def, ref ast_generics) => { hir::ItemEnum(ref enum_def, ref ast_generics) => {
self.check_type_defn(item, false, |fcx| { self.check_type_defn(item, true, |fcx| {
fcx.enum_variants(enum_def) fcx.enum_variants(enum_def)
}); });