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| author | Kaz Kylheku <kaz@kylheku.com> | 2021-01-23 18:19:52 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2021-01-23 18:19:52 -0800 |
| commit | 75abded71ecaf0f5d1d3257f436b2df9690bdc25 (patch) | |
| tree | b385b76d7e0a2396bc454483fa059e470576948a /tests/012/except.tl | |
| parent | a28cb225ab66060a46eee6776fe9e735944d0e96 (diff) | |
| download | txr-75abded71ecaf0f5d1d3257f436b2df9690bdc25.tar.gz txr-75abded71ecaf0f5d1d3257f436b2df9690bdc25.tar.bz2 txr-75abded71ecaf0f5d1d3257f436b2df9690bdc25.zip | |
places: fix runaway recursion bug.
The following form fails to expand:
(let (a) (set a '#1=(#1#)))
This is due to macro ancestor propagation which wants to
traverse the entire (set ...) form in order to indicate its
macro ancestor.
* share/txr/stdlib/place.tl (sys:propagate-ancestor): We check
whether to-tree already has a macro ancestor, and only recurse
if it doesn't.
Diffstat (limited to 'tests/012/except.tl')
0 files changed, 0 insertions, 0 deletions