Throw exceptions instead of erroring

[ElvishJerricco]

There are several areas that can error in the process of compiling a method. I think I'd like to wrap several places in pcalls in such a way that the error message is converted to an exception and thrown. Mainly, there'd be a function called "ecall", that is used in the spots where methods get called. Its purpose is to call a method and if it errors, it will catch it from pcall, produce an exception built around the error message, and return nil, exception, effectively throwing the exception. Otherwise, it will return what the method returns.

[Turakar]

That sounds good to me. A check in the callers side would still be necessary, wouldn't it? Because I would like to have exceptions just bubbeling up, like in Java.

EDIT: I hate auto-correction...

[Yevano]

Because I would like to habe exceptions just bubbeling up, Mike in Java.

I don't even.

[Turakar]

Well, it would probaby also be a lot oft recoding, so anyway.

[ElvishJerricco]

The only thing that would change how it does its call I think would be the part of createCodeFunction that tailcalls the compiled method. Not at my computer at the moment so I can't copy paste but here's sort of how I think it'd look.

function createCodeFunction(blahParams)
    local rti, f
    return function(...)
        if not f then
            f, rti = compile(blahParams)
        end
        return ecall(f, ...)
    end
end

I don't think there's any other places that would need to be ecall'd