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From "mg (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (GROOVY-8300) Groovy should have an @AutoFinal annotation
Date Mon, 28 Aug 2017 23:26:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-8300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16144530#comment-16144530
] 

mg edited comment on GROOVY-8300 at 8/28/17 11:25 PM:
------------------------------------------------------

@What phase should this run at: As early as possible ? Without being any kind of expert in
language development, it seems to me that treating this like a C/C++ macro change to the code
minimizes any chance of adverse interactions with other language feature...


was (Author: emge):
@What phase should this run at: As early as possible ?

> Groovy should have an @AutoFinal annotation
> -------------------------------------------
>
>                 Key: GROOVY-8300
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8300
>             Project: Groovy
>          Issue Type: New Feature
>            Reporter: Paul King
>
> When defined on a method or constructor, all parameters of that method/constructor will
be final. When applied on a class, the annotation applies to all methods/constructors.
> Discussion points:
> # Should visibility matter, e.g. would it apply to all public, protected, private, etc.
members, or does there need to be some ability to customise? *Current thinking*: it should
apply to all methods. We can always introduce an additional annotation attribute at a later
point if there is demand.
> # Should there be support for 'includes' or 'excludes' functionality? *Current thinking*:
don't support this for now. The annotation can be applied on multiple methods/constructors
if finer granularity than the class level is required.
> # Should the annotation apply to fields/properties? Applying 'final' to a field/property
seems to be more efficient than applying @AutoFinal but would there ever be a desire to apply
such an annotation to all fields/properties? *Current thinking*: don't support this for now.
An annotation attribute could be added later if we wanted to optionally turn such extra cases
on.
> # Should it apply to synthetic methods/constructors added by the compiler/other transforms?
> # What phase should this run at? It needs to be before the (incubating) final variable
analyser is run.
> # We should have tests to confirm that there are no adverse interactions with other language
features, e.g. default parameter values.



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