package tezos-protocol-alpha

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package tezos-protocol-alpha
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include Storage_sigs.Non_iterable_indexed_data_storage with type key = id with type value = Tezos_protocol_environment_alpha.Z.t with type t := Raw_context.t
type context = Raw_context.t
type key = id

An abstract type for keys

The type of values

Tells if a given key is already bound to a storage bucket

Retrieve a value from the storage bucket at a given key ; returns Storage_errorMissing_key if the key is not set ; returns Storage_errorCorrupted_data if the deserialisation fails.

Retrieve a value from the storage bucket at a given key ; returns None if the value is not set ; returns Storage_error Corrupted_data if the deserialisation fails.

Updates the content of a bucket ; returns A Storage_Error Missing_key if the value does not exist.

Allocates a storage bucket at the given key and initializes it ; returns a Storage_errorExisting_key if the bucket exists.

Allocates a storage bucket at the given key and initializes it with a value ; just updates it if the bucket exists.

When the value is Some v, allocates the data and initializes it with v ; just updates it if the bucket exists. When the value is None, deletes the storage bucket ; does nothing if the bucket does not exist.

Delete a storage bucket and its contents ; returns a Storage_errorMissing_key if the bucket does not exist.

Removes a storage bucket and its contents ; does nothing if the bucket does not exist.

Empties all the keys and associated data.

Lists all the keys.

Lists all the keys and associated data.

val fold : context -> order:[ `Sorted | `Undefined ] -> init:'a -> f:(key -> value -> 'a -> 'a Tezos_protocol_environment_alpha.Lwt.t) -> 'a Tezos_protocol_environment_alpha.Lwt.t

Iterates over all the keys and associated data.

val fold_keys : context -> order:[ `Sorted | `Undefined ] -> init:'a -> f:(key -> 'a -> 'a Tezos_protocol_environment_alpha.Lwt.t) -> 'a Tezos_protocol_environment_alpha.Lwt.t

Iterate over all the keys.

Returns true iff context is empty.

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