package ppxlib

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package ppxlib
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This module allows to declare extensions that do not produce a value of the context type. This is typically useful for extensions point that depends on more things from the context than the path and location.

type ('context, 'payload) t

Type of declared expert extensions.

The 'context type parameter describes where the extension is expected and the 'payload one what its payload should contain.

val declare : string -> 'context Context.t -> (Astlib.Ast_500.Parsetree.payload, 'a, 'b) Ast_pattern.t -> 'a -> ('context, 'b) t
val declare_with_path_arg : string -> 'context Context.t -> (Astlib.Ast_500.Parsetree.payload, 'a, 'b) Ast_pattern.t -> (arg:Longident.t Loc.t option -> 'a) -> ('context, 'b) t
val convert_res : (_, 'a) t list -> loc:Location.t -> (string Astlib.Location.loc * Astlib.Ast_500.Parsetree.payload) -> ('a option, Location.Error.t Stdppx.NonEmptyList.t) Stdlib.result
val convert : (_, 'a) t list -> loc:Location.t -> (string Astlib.Location.loc * Astlib.Ast_500.Parsetree.payload) -> 'a option
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