Module structural_traits

Code which is used by built-in goals that match “structurally”, such a auto traits, Copy/Clone.

Structs

• AsyncCallableRelevantTypes 🔒
  Relevant types for an async callable, including its inputs, output, and the return type you get from awaiting the output.
• ReplaceProjectionWith 🔒

Functions

• coroutine_closure_to_ambiguous_coroutine 🔒
  Given a coroutine-closure, project to its returned coroutine when we are not certain that the closure’s kind is compatible with the goal, and therefore also don’t know yet what the closure’s upvars are.
• coroutine_closure_to_certain_coroutine 🔒
  Given a coroutine-closure, project to its returned coroutine when we are certain that the closure’s kind is compatible with the goal.
• extract_fn_def_from_const_callable 🔒
  This duplicates extract_tupled_inputs_and_output_from_callable but needs to return different information (namely, the def id and args) so that we can create const conditions.
• extract_tupled_inputs_and_output_from_async_callable 🔒
• extract_tupled_inputs_and_output_from_callable 🔒
• fn_item_to_async_callable 🔒
• instantiate_constituent_tys_for_auto_trait 🔒
• instantiate_constituent_tys_for_copy_clone_trait 🔒
• instantiate_constituent_tys_for_sized_trait 🔒
• predicates_for_object_candidate 🔒
  Assemble a list of predicates that would be present on a theoretical user impl for an object type. These predicates must be checked any time we assemble a built-in object candidate for an object type, since they are not implied by the well-formedness of the type.