patch 8.2.3178: Vim9: the file name of an :import cannot be an expression
Problem: Vim9: the file name of an :import cannot be an expression.
Solution: Accept an expression that results in a string. Do not support
:import in a function.
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 8b91cdd..a0681d2 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1354,6 +1354,9 @@
`:import` can also be used in legacy Vim script. The imported items still
become script-local, even when the "s:" prefix is not given.
+`:import` can not be used in a function. Imported items are intended to exist
+at the script level and only imported once.
+
The script name after `import` can be:
- A relative path, starting "." or "..". This finds a file relative to the
location of the script file itself. This is useful to split up a large
@@ -1363,6 +1366,7 @@
- A path not being relative or absolute. This will be found in the
"import" subdirectories of 'runtimepath' entries. The name will usually be
longer and unique, to avoid loading the wrong file.
+ Note that "after/import" is not used.
Once a vim9 script file has been imported, the result is cached and used the
next time the same script is imported. It will not be read again.