error.ml
(*****************************************************************************)
(* *)
(* Open Source License *)
(* Copyright (c) 2022 TriliTech <contact@trili.tech> *)
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type task =
| Create_engine
| Create_store
| Create_configuration
| Create_module
| Instantiate_module
let string_of_task = function
| Create_engine -> "creating a Wasmer engine"
| Create_store -> "creating a WebAssembly store"
| Create_configuration -> "creating a Wasmer configuration"
| Create_module -> "creating a WebAssembly module"
| Instantiate_module -> "instantiating a WebAssembly module"
type t = {task : task; reason : string}
exception Wasmer_error of t
let make_exception task reason = Wasmer_error {task; reason}
let () =
Printexc.register_printer @@ function
| Wasmer_error {task; reason} ->
Some
(Format.asprintf
"Wasmer errored while %s: %s"
(string_of_task task)
reason)
| _ -> None