diff options
| author | Yegappan Lakshmanan <yegappan@yahoo.com> | 2024-03-03 16:26:58 +0100 |
|---|---|---|
| committer | Christian Brabandt <cb@256bit.org> | 2024-03-03 16:34:51 +0100 |
| commit | d3eae7bc116297f70220f21ded436ed0a88066d8 (patch) | |
| tree | 29837ff70cabc4f3238be13df845dcb6ace10da9 /runtime/doc/builtin.txt | |
| parent | 215703563757a4464907ead6fb9edaeb7f430bea (diff) | |
patch 9.1.0148: Vim9: can't call internal methods with objectsv9.1.0148
Problem: Vim9: can't call internal methods with objects
Solution: Add support for empty(), len() and string() function
calls for objects (Yegappan Lakshmanan)
closes: #14129
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
Diffstat (limited to 'runtime/doc/builtin.txt')
| -rw-r--r-- | runtime/doc/builtin.txt | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt index dbad8802e1..0d47e36531 100644 --- a/runtime/doc/builtin.txt +++ b/runtime/doc/builtin.txt @@ -1,4 +1,4 @@ -*builtin.txt* For Vim version 9.1. Last change: 2024 Mar 01 +*builtin.txt* For Vim version 9.1. Last change: 2024 Mar 03 VIM REFERENCE MANUAL by Bram Moolenaar @@ -2265,6 +2265,8 @@ empty({expr}) *empty()* - A |Job| is empty when it failed to start. - A |Channel| is empty when it is closed. - A |Blob| is empty when its length is zero. + - An |Object| is empty, when the |empty()| builtin method in + the object (if present) returns true. For a long |List| this is much faster than comparing the length with zero. @@ -5476,7 +5478,9 @@ len({expr}) The result is a Number, which is the length of the argument. When {expr} is a |Blob| the number of bytes is returned. When {expr} is a |Dictionary| the number of entries in the |Dictionary| is returned. - Otherwise an error is given and returns zero. + When {expr} is an |Object|, invokes the |len()| method in the + object (if present) to get the length. Otherwise returns + zero. Can also be used as a |method|: > mylist->len() @@ -9587,6 +9591,10 @@ string({expr}) Return {expr} converted to a String. If {expr} is a Number, replaced by "[...]" or "{...}". Using eval() on the result will then fail. + For an object, invokes the |string()| method to get a textual + representation of the object. If the method is not present, + then the default representation is used. + Can also be used as a |method|: > mylist->string() |