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From "Paul King (JIRA)" <>
Subject [jira] [Commented] (GROOVY-8329) Consider statically typed/compiled as default for Groovy 3.0
Date Thu, 12 Oct 2017 14:30:00 GMT


Paul King commented on GROOVY-8329:

I wouldn't phrase it that we want less convenient static support than you (when appropriate)
but just not wanting to give up the dynamic capabilities of Groovy either. The current "intrinsic
feature" of the file is the CompileStatic annotation at the top. We might eventually support
special filenames but are just conservative in introducing such a change.

Wrt the @author tags, Apache leave it up to each PMC to decide whether to have them or not
but they strongly recommend avoiding those tags and so do many agile folks these days. It's
potentially controversial but some of the links are interesting:

[] (read

TLDR; having them violates DRY. Why have inaccurate out-of-date metadata when your repo gives
accurate info in one place - and graphs showing all contributors if you want. Plus there is
an aspect of code ownership by the whole community and not wanting to scare potential contributors
away because someone else "owns" a file plus I think there are legal ramifications (you might
get sued in some countries when all you did was add a few comments into a file!). As per Apache
recommendations, for any significant contribution, we should add folks into the pomconfigurer.gradle

> Consider statically typed/compiled as default for Groovy 3.0
> ------------------------------------------------------------
>                 Key: GROOVY-8329
>                 URL:
>             Project: Groovy
>          Issue Type: New Feature
>            Reporter: Endre StĂžlsvik
> Personally, I do not understand why anyone would ever want to drop typing from JVM based
languages (or in any other language, for that matter). Thus, I only started using Groovy "for
real" when I discovered the @CompileStatic annotation, which really made everything great!
> If I could choose, I'd go for statically typed by default, with @DynamicCompile or somesuch
as an annotation I could turn on for methods that uses the XML parsing features etc.
> To me, it seems like more and more people are realizing that statically typed languages
is the way to go, notice e.g. TypeScript, Facebook's retrofitting of types onto PHP with Hack,
and even PHP's own typing in PHP 7.
> Now with Kotlin joining the fray of JVM-based languages, whose literally first two words
on the wepage is "statically typed", getting special support in Spring, and - notably - getting
full support in Gradle, I'd say that this applies more than ever. If Groovy "looses Gradle"
to Kotlin due to the ability to get a statically typed build script (oh, the joy!), I believe
Groovy will have a much harder time attracting new users. Turning Groovy into one of the statically
typed JVM languages, instead of hampering users with "everything is an Object"-based runtime
resolution, will increase the appeal of the language.
> The 3.0 can be a great point to change this. It could of course be reverted back to previous
logic by some -D switch (would need support in IDEs too, I guess), or by sticking some magic
"whole-sale annotation" at the top of the source file, or something like this.

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