[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Patch for fields of `struct buffer'

From: Stefan Monnier
Subject: Re: Patch for fields of `struct buffer'
Date: Mon, 31 Jan 2011 15:03:28 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

Stefan> Variables that are captured by a closure are (by definition) lexically
Stefan> scoped, so they should not be affected by
Stefan> buffer/thread/keyboard-localness which only applies to
Stefan> dynamically-scoped variables.

> Ok, I think I see.  I was trying to construct a test case and, IIUC, an
> inner `let' would make a new lexically-bound variable, not dynamically
> bind the outer one.  Is that correct?

Exactly.  Basically, lexically scoped vars don't use the symbol's
`value' cell at all, so their values only reside on the stack and other
such places and they should interact with concurrency without any extra
work, just like normal local C variables.

> I would try it but last time I checked out lexbind, I couldn't get it to
> build.  Is it working now?

I could build it last time I tried it, but I haven't tried recently, and
it's been even (much) longer since I last bootstrapped it.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]