1. I think the idea is, that if the older java.util.Date family of
classes gets auto-imported, then its newer counterpart should also
be, which makes sense to me.
1. (As I understood it, java.time.format & java.time.temporal
would be auto-imported under the proposal (?))
2. I do however see the problem of where to draw the line with regards
to other often used java.* packages (not related to the date-time
domain).
1. Perhaps instead of auto importing more and more packages, Groovy
could:
1. Issue a special kind of error if a script does not compile
and it finds class names that match ones from well known /
often used Java packages.
1. The error message could include the required import
statements ready to copy into the script, if the user so
chooses.
1. That would evidently not solve the "single line
Groovy script" case, but how many people actually
use Groovy that way... ?
2. Single-line usage is always very limited in any case.
2. Support "compound imports", analogue to existing
AnnotationCollector for annotations.
1. e.g.:
1. import all java // all but the most obscure Java
libs
2. import all java_core // all often used Java libs
3. import all datetime // all DateTime related libs
4. import all text // all text realted libs
5. etc
3. Groovy then could come with some predefined "compound
imports" like in the examples given above, as well as
letting people define their own...
Cheers,
mg
Am 01.06.2025 um 14:56 schrieb Alexander Veit via users:
Am 31.05.25 um 09:36 schrieb Paul King:
We have a feature request, and potential PR, to add java.time.* as a
new default import:
https://issues.apache.org/jira/browse/GROOVY-11513
https://github.com/apache/groovy/pull/2156
I would vote against this proposal. Here are some arguments why:
First of all, I'm generally not in favor of adding more default
default imports to the language, since I suspect negative impacts on
maintainability of scripts and the efficiency of the compilation process.
Apart from Instance, LocalDateTime and ZonedDateTime most of the
classes in java.time are probably rarely used. Does this justify to
add 16 extra classes?
The classes in java.time are not fully usable without classes from
other packages like java.time.format or java.time.temporal which
should then also be default imports.
There are many good points about including such a star import
This argument also holds for other packages like java.nio.* or java.text.
