[parenscript-devel] New patch that adds real lexical scoping and maybe breaks your code
vsedach at gmail.com
Sun May 3 21:40:32 UTC 2009
I just pushed a patch into the repository that may break existing
code. Here is the patch description:
Implemented LET and LET* by variable renaming, which provides the
correct scoping semantics, and simplifies both the producing and the
Removed the "." and "" name-mangling conventions from
symbol-to-js-string. Any code that uses symbols such as "foo.bar[baz]"
will now issue a warning, and needs to be rewritten to use standard
Lisp accessors. This is needed for variable renaming to work, and is
an extension of the patch that eliminated the ".method" method-calling
Thanks to Daniel Gackle and Dough Hoyte for opening my eyes to this
technique, which was right in front of me all along.
This is a win-win situation for everyone involved (yes, even if it
breaks your code, think of it as an opportunity for refactoring).
With this patch Parenscript is finally rid of the evil symbol-abuse
conventions, which IMO is the only thing from the original design of
Parenscript that can in retrospect be called a mistake.
Let me know what you guys think.
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