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| author | Kaz Kylheku <kaz@kylheku.com> | 2020-07-08 18:15:24 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2020-07-08 18:15:24 -0700 |
| commit | 40712bc8a0ea6960ea190b8c28b0965fb3de923a (patch) | |
| tree | ee14252aac1fa33b1aca221bd4f159dd625e113c | |
| parent | 6ec0884574bf7715c00ff10b4d1c44ad079205de (diff) | |
| download | txr-40712bc8a0ea6960ea190b8c28b0965fb3de923a.tar.gz txr-40712bc8a0ea6960ea190b8c28b0965fb3de923a.tar.bz2 txr-40712bc8a0ea6960ea190b8c28b0965fb3de923a.zip | |
doc: iter-more vs oop iterator.
* txr.1: Document that iter-more returns t when an
oop-iterator does not feature the iter-more method.
| -rw-r--r-- | txr.1 | 16 |
1 files changed, 14 insertions, 2 deletions
@@ -29527,6 +29527,13 @@ and does not change the state of the iterator. It is idempotent: if it is called multiple times without any intervening call to any other method, it yields the same value. +If an iterator does not implement the +.code iter-more +method, then if the +.code iter-more +function is applied to that iterator, it unconditionally returns +.codn t . + .SS* Sequence Manipulation Functions in this category uniformly manipulate abstract sequences. Lists, @@ -33932,9 +33939,14 @@ with regard to descending range iteration. If .meta iter -is a structure which supports the +is a structure, then if it supports an .code iter-more -method, then that method is called and its return value is returned. +method, then that method is called with no arguments, and its return value +is returned. If the structure does not have an +.code iter-more +method, then +.code t +is returned. .coNP Function @ iter-item .synb |