Module util

Expand description

Miscellaneous type-system utilities that are too small to deserve their own modules.

Structs§

fold_list: Does the equivalent of
intrinsic_raw: Determines whether an item is an intrinsic (which may be via Abi or via the rustc_intrinsic attribute).
is_doc_hidden 🔒: Determines whether an item is directly annotated with doc(hidden).
is_doc_notable_trait: Determines whether an item is annotated with doc(notable_trait).
needs_drop_components: Returns a list of types such that the given type needs drop if and only if any of the returned types need drop. Returns Err(AlwaysRequiresDrop) if this type always needs drop.
needs_drop_components_with_async: Returns a list of types such that the given type needs drop if and only if any of the returned types need drop. Returns Err(AlwaysRequiresDrop) if this type always needs drop.
provide
reveal_opaque_types_in_bounds: Reveals all opaque types in the given value, replacing them with their underlying types.
try_fold_list: Does the equivalent of