Error

An Error is created by RocketLang if unallowed or invalid code is run. An error does often replace the original return value of a function or identifier. The documentation of those functions does indicate ERROR as a potential return value.

A program can rescue from errors within a block or alter it's behavior within other blocks like 'if' or 'def'.

It is possible for the user to create errors using 'raise(STRING)' which will return an ERROR object with STRING as the message.

def test()
  puts(nope)
rescue e
  puts("Got error: '" + e.msg() + "'")
end

test()

=> "Got error in if: 'identifier not found: error'"

if (true)
  nope()
rescue your_name
  puts("Got error in if: '" + your_name.msg() + "'")
end

=> "Got error in if: 'identifier not found: nope'"

begin
  puts(nope)
rescue e
  puts("rescue")
end

=> "rescue"

Literal Specific Methods

msg()

Returns STRING

Returns the error message

caution

Please note that performing .msg() on a ERROR object does result in a STRING object which then will no longer be treated as an error!

Generic Literal Methods

methods()

Returns ARRAY

Returns an array of all supported methods names.

"test".methods()

Output

["upcase", "find", "format", "reverse", "split", "replace", "strip!", "count", "reverse!", "lines", "downcase!", "upcase!", "size", "plz_i", "strip", "downcase"]

to_json()

Returns STRING|ERROR

Returns the object as json notation.

a = {"test": 1234}
a.to_json()

Output

{"test": 1234}
"{\"test\":1234}"

type()

Returns STRING

Returns the type of the object.

"test".type()

Output

"STRING"

wat()

Returns STRING

Returns the supported methods with usage information.

true.wat()

Output

"BOOLEAN supports the following methods:
plz_s()"