Re: thunk.el: Document that thunk-force == funcall?

[Stefan Monnier <monnier@iro.umontreal.ca>]

>>> (setq lexical-binding t)
>> Side node: this usually doesn't do what the author thinks it does.
> what does it do?

It changes the lexical-binding mode of the buffer in which the code
is executed, which means it will affect the code subsequently
read&macroexpanded from that buffer.

If that's inside a file that you're `load`ing, it will change the
lexical-binding of the buffer which happens to be current when the file
is loaded but won't affect the interpretation of the subsequent code in
that file.

> how to turn the *scratch* buffer to lexical binding?

By hitting C-j after the above line, for example ;-)

>    ;;; -*- lexical-binding: t -*-
> at the beginning of a buffer.
> does this do what i think it does, i.e. switch to lexical binding for
> the entire buffer?

Yes, that's the recommended way.


        Stefan