Tezos_raw_protocol_012_Psithaca.Ticket_scannerThis module provides an API for extracting tickets of arbitrary types from an OCaml values, given a type-witness.
type ex_ticket = | Ex_ticket : 'a Script_typed_ir.comparable_ty
* 'a Script_typed_ir.ticket -> ex_ticketA type for representing existentially quantified tickets (tickets with different types of payloads). An ex_ticket value consists of:
val tickets_of_value :
Alpha_context.context ->
include_lazy:bool ->
'a Script_typed_ir.ty ->
'a ->
(ex_ticket list * Alpha_context.context)
Tezos_protocol_environment_012_Psithaca.Error_monad.tzresult
Tezos_protocol_environment_012_Psithaca.Lwt.ttickets_of_value ctxt ~include_lazy ty value extracts all tickets from the given shape ty and value value. The include_lazy flag determines whether or not to traverse lazy structures (values from the context). In case the include_lazy flag is true, any big-map contained in the value must have an empty overlay or else an error of type Unsupported_non_empty_overlay is returned. The reason for this restriction is that we assume that all lazy big-map diffs should be applied before calling this function. Dealing with non-empty overlays would be possible in theory, but practically difficult. The challenge is to distinguish between overlapping keys between the context and the overlay.