Exn
Provide utilities for dealing with JS exceptions.
t
RESCRIPT
type t
Represents a JS exception
asJsExn
RESCRIPT
let asJsExn: exn => option<t>
stack
RESCRIPT
let stack: t => option<string>
message
RESCRIPT
let message: t => option<string>
name
RESCRIPT
let name: t => option<string>
fileName
RESCRIPT
let fileName: t => option<string>
isCamlExceptionOrOpenVariant
RESCRIPT
let isCamlExceptionOrOpenVariant: 'a => bool
internal use only
anyToExnInternal
RESCRIPT
let anyToExnInternal: 'a => exn
anyToExnInternal(obj)
will take any value obj
and wrap it
in a Js.Exn.Error if given value is not an exn already. If
obj
is an exn, it will return obj
without any changes.
This function is mostly useful for cases where you want to unify a type of a value that potentially is either exn, a JS error, or any other JS value really (e.g. for a value passed to a Promise.catch callback)
IMPORTANT: This is an internal API and may be changed / removed any time in the future.
Examples
RESCRIPTswitch (Js.Exn.unsafeAnyToExn("test")) {
| Js.Exn.Error(v) =>
switch(Js.Exn.message(v)) {
| Some(str) => Js.log("We won't end up here")
| None => Js.log2("We will land here: ", v)
}
}
raiseError
RESCRIPT
let raiseError: string => 'a
Raise Js exception Error object with stacktrace
raiseEvalError
RESCRIPT
let raiseEvalError: string => 'a
raiseRangeError
RESCRIPT
let raiseRangeError: string => 'a
raiseReferenceError
RESCRIPT
let raiseReferenceError: string => 'a
raiseSyntaxError
RESCRIPT
let raiseSyntaxError: string => 'a
raiseTypeError
RESCRIPT
let raiseTypeError: string => 'a
raiseUriError
RESCRIPT
let raiseUriError: string => 'a