On Mon, 11 Apr 2011 21:45:36 +0000 (UTC) Matthew Swank <akopa.gmane.pos...@gmail.com> wrote:
> I am current reading an interesting paper on Racket's macro system (referenced > here: http://lambda-the-ultimate.org/node/4196 > ), and some of the objects they expose quack like CLTL-2 Environments: > http://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node102.html. I have read that > having write access to environments makes it hard for the compiler to optimize > code. However, even portable read only access would be helpful. Does anyone > besides me and Cyrus Harmon (http://cyrusharmon.org/blog/display?id=113) > miss Environments? I just wanted to say that the resulting thread is most precious and worthy of archiving; I was also occasionally confronted to various compilation-environment related issues and so far the provided answers and links seem to touch most, if not all of the topic: - Custom lexically scoped SETF/GETF expansions built on macros, using lexical macros overriding the top-level macros - Lexically scoped symbol-macrolet using lexically scoped macrolet - The ENV parameter of the various special forms, where available, and implementation-dependent related features - Custom declarations and implementation-dependent ways to access their current values in the current scope - The COMPILER-LET issue Great thanks, -- Matt _______________________________________________ pro mailing list pro@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/pro
