Mavryk_protocol_environment.Proxy_context
This module is the location where the proxy tweaks the behavior of a vanilla client. A regular mockup client uses a Memory_context
in place of this implementation. Compared to Memory_context
, this instance features a Proxy_Delegate
.T which under the hood relies on Proxy_getter
.
Other *_context
modules of Mavryk_protocol_environment
, i.e. siblings of this file, are backed by different type of values coming from Mavryk_context
. This file is backed by M.t
below, which is a thin layer over Mavryk_memory_context
.Context. Because of that, this instance of Mavryk_protocol_environment
is close to the Memory_context
one.
Whereas Memory_context
is a regular recursive map, Proxy_context
obtains values by delegating to endpoints when receiving requests. Hence, right after having created an empty
value with an instance of Proxy_Delegate.T
, this value behaves as the distant endpoint it delegates to.
module M : sig ... end
The module by which to parameterize Environment_context
.Context.kind below.
type Mavryk_protocol_environment__.Environment_context.Context.kind +=
| Context : M.t Mavryk_protocol_environment__.Environment_context.Context.kind
The additional kind identifying Proxy_context
values. Used to detect at runtime when a proxy context is expected, to disambiguate from other kinds.
val empty :
Proxy_delegate.t option ->
Mavryk_protocol_environment__.Environment_context.Context.t
Constructs an empty context, possibly giving the delegate (the function querying the endpoint) right away. Otherwise set it later with set delegate