[jira] [Created] (LUCENE-10136) Lift the restriction on using 'var' variables

["Dawid Weiss (Jira)" <ji...@apache.org>]

Dawid Weiss created LUCENE-10136:
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             Summary: Lift the restriction on using 'var' variables
                 Key: LUCENE-10136
                 URL: https://issues.apache.org/jira/browse/LUCENE-10136
             Project: Lucene - Core
          Issue Type: Wish
    Affects Versions: main (9.0)
            Reporter: Dawid Weiss


Can we lift the restriction on using 'var' on the main branch? I know it's a double-edged sword and sometimes it leads to unreadable code, especially when you invoke a method, for example:

{code}
var foo = myMethodThatDoesSomething();
{code}

but in many, many, *many* cases the var keyword shortens the code and the type is obvious from the context. This happens in loops, try-with-resources and local variables. 
{code}
for (var it = array.iterator(); it.hasNext();) { ... }
try (var foo = new MyFoo()) { ... }
{code}

I'd say - let's allow vars (and other language features) and use common sense. If something is not clear in the context, type the variable. If something is obvious, use shortcuts.




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