Re: error(msg[, level]): level parameter ignored?

[Andrew Starks <andrew.starks@...>]

On Monday, June 23, 2014, Pierre-Yves Gérardy <pygy79@gmail.com> wrote:
> I thought that the "level" parameter was supposed to shave some of the
> call stack... What is happening here?
>
>     ~$ lua
>     Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
>     > function foo(n) bar(n) end
>     > function bar(n) error("BAR", n) end
>
>     > foo(1)
>     stdin:1: BAR
>     stack traceback:
>         [C]: in function 'error'
>         stdin:1: in function 'bar'
>         stdin:1: in function 'foo'
>         stdin:1: in main chunk
>         [C]: ?
>
>     > foo(2)
>     stdin:1: BAR
>     stack traceback:
>         [C]: in function 'error'
>         stdin:1: in function 'bar'
>         stdin:1: in function 'foo'
>         stdin:1: in main chunk
>         [C]: ?
>
>     > foo(3)
>     stdin:1: BAR
>     stack traceback:
>         [C]: in function 'error'
>         stdin:1: in function 'bar'
>         stdin:1: in function 'foo'
>         stdin:1: in main chunk
>         [C]: ?
>
>     > foo(0)
>     BAR
>     stack traceback:
>         [C]: in function 'error'
>         stdin:1: in function 'bar'
>         stdin:1: in function 'foo'
>         stdin:1: in main chunk
>         [C]: ?
>
> —Pierre-Yves

Does it have anything to do with running in the REPL?  That is confusing...