I can't figure out why my code returns a syntax error

[TheAwiteb]

Hi, I have this rhai function, which returns a syntax error, but I can't know why.

fn not_unit_and(x, default, callback) {
  if type_of(x) == "()" {
    return default;
  }
  callback.call(x)
}

Error: Syntax error: Expecting ')' to close the parameters list of function not_unit_and

[TheAwiteb]

After putting the function in the playground, I noticed it highlight default as a keyword. IDK, but I think the error should be clear more than this.

CC: @schungx

[schungx]

Yes, the error could be better. The parser should detect that default is not allowed within a parameters list and warn you otherwise.