package tezos-protocol-014-PtKathma
Install
Dune Dependency
Authors
Maintainers
Sources
sha256=43723d096307603703a1a89ed1b2eb202b365f5e7824b96b0cbf813b343a6cf7
sha512=b2a637f2e965000d3d49ad85277ca24d6cb07a1a7cf2bc69d296d8b03ad78c3eaa8e21e94b9162e62c2e11649cd03bc845b2a3dafe623b91065df69d47dc8e4f
doc/tezos-protocol-014-PtKathma.raw/Tezos_raw_protocol_014_PtKathma/Ticket_scanner/index.html
Module Tezos_raw_protocol_014_PtKathma.Ticket_scannerSource
This 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_ticket
A type for representing existentially quantified tickets (tickets with different types of payloads). An ex_ticket value consists of:
- A type-witness representing the type of the content of the ticket.
- A ticket value of the particular content type.
A type-witness that contains information about which branches of a type 'a include tickets. This value is used for traversing only the relevant branches of values when scanning for tickets.
val type_has_tickets :
Alpha_context.context ->
('a, _) Script_typed_ir.ty ->
('a has_tickets * Alpha_context.context)
Tezos_protocol_environment_014_PtKathma.Error_monad.tzresulttype_has_tickets ctxt ty returns a has_tickets witness of the given shape ty.
val tickets_of_value :
Alpha_context.context ->
include_lazy:bool ->
allow_zero_amount_tickets:bool ->
'a has_tickets ->
'a ->
(ex_ticket list * Alpha_context.context)
Tezos_protocol_environment_014_PtKathma.Error_monad.tzresult
Tezos_protocol_environment_014_PtKathma.Lwt.ttickets_of_value ctxt ~include_lazy ht value extracts all tickets from the given value, using the type-witness ht. 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.
val tickets_of_node :
Alpha_context.context ->
include_lazy:bool ->
allow_zero_amount_tickets:bool ->
'a has_tickets ->
Alpha_context.Script.node ->
(ex_ticket list * Alpha_context.context)
Tezos_protocol_environment_014_PtKathma.Error_monad.tzresult
Tezos_protocol_environment_014_PtKathma.Lwt.ttickets_of_node ctxt ~include_lazy ht node extracts all tickets from the given node, using the type-witness ht.If ht indicates that values of the corresponding type may not contain tickets, the node value is not parsed. 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.
has_tickets ht returns whether or not the type of the given has_tickets witness ht has tickets.