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Matthew Flatt 84b58d9bae expander: more flexible top-level #%app expansion
Adjust top-level compilation to accomodate an `#%app` macro that
expands to definitions. Allowing `#%app` to expand to a non-expression
is more consistent with expansion in a module.

There's still an issue with top-level expansion where

 (define-syntax-rule (#%app id)
   (begin
     (define-syntax (id stx) 'ok)
     id))

does not work, because the kind of partial expansion used for the top
level doesn't trigger `#%app`, and so the macro and use are expanded
together in a `begin` instead of separately. Changing that would be
subtle and maybe not worthwhile for the top level. Also, although the
behavior of the (very) old expander may not be relevant anymore, it
behaved the same way on that example.

Closes #3728
2021-04-12 17:00:12 -06:00
.github Run workflow directly in VM (#3731) 2021-03-19 18:23:29 +01:00
pkgs expander: more flexible top-level #%app expansion 2021-04-12 17:00:12 -06:00
racket expander: more flexible top-level #%app expansion 2021-04-12 17:00:12 -06:00
.gitattributes Don't include git files in archives. 2010-05-12 01:46:05 -04:00
.gitignore Fix typo. 2019-06-21 12:32:37 -05:00
.lgtm.yml Fetch PB to start LGTM build 2020-08-07 12:17:17 +02:00
.mailmap Minor metadata changes. 2019-10-15 08:09:32 -04:00
.makefile makefile: clone single pb branch by default 2021-03-23 17:28:46 -06:00
build.md build guide: Chez Scheme for Racket is no longer in a separate repo 2021-04-07 06:50:42 -06:00
LICENSE update LICENSE to use "CS" and "BC" 2021-01-15 09:32:59 -07:00
Makefile makefile: clone single pb branch by default 2021-03-23 17:28:46 -06:00
README.md Fix README 2020-09-06 09:03:42 -04:00

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