Right, my Spacing problem is not related to the static initializer problem
(which I also suffer from) but it is another example of (what seems to me)
a fairly standard pattern that I can't use in Clojure if I AOT and which
doesn't have an obvious workaround.
On 24 October 2013 03:32, Alex Miller <a...@puredanger.com> wrote:
> Agreed - merely importing this class shouldn't be an issue (which is the
> issue at hand).
>
> If you need to configure Spacing, you should do that prior to using it in
> your def, but that should work fine. If that needs to happen at runtime,
> then you shouldn't do this in a def.
>
>
> On Wednesday, October 23, 2013 9:01:15 AM UTC-5, Aaron Cohen wrote:
>
>> I'm not sure if this is related to the original problem.
>>
>> How is the setFactory method expected to be invoked, through some sort
>> of dependency injection framework?
>>
>>
>> On Wed, Oct 23, 2013 at 7:06 AM, Colin Fleming <colin.ma...@gmail.com>wrote:
>>
>>> I've also had a lot of problems with def'ed forms. For example, if I
>>> do this:
>>>
>>> (def no-spacing (Spacing/createSpacing 0 0 0 false 0))
>>>
>>> Which looks like this:
>>>
>>> public static Spacing createSpacing(int minSpaces,
>>> ** int maxSpaces,
>>> ** int minLineFeeds,
>>> ** boolean keepLineBreaks,
>>> ** int keepBlankLines) {
>>> return myFactory.createSpacing(**minSpaces, maxSpaces,
>>> minLineFeeds, keepLineBreaks, keepBlankLines);
>>> }
>>>
>>> myFactory is injected at some earlier point:
>>>
>>> static void setFactory(SpacingFactory factory) {
>>> myFactory = factory;
>>> }
>>>
>>> But during compilation that obviously hasn't happened and I get an NPE
>>> during compilation. It's a little annoying that there really seems to be no
>>> good way to create this value at namespace load time if I'm AOT compiling.
>>> I can obviously defer it using defn with memoize or something, but that
>>> seems clunky for what doesn't seem like that crazy a use case.
>>>
>>>
>>> On 23 October 2013 15:21, Zach Oakes <zso...@gmail.com> wrote:
>>>
>>>> Here's the error I get when I import LibGDX's Timer class:
>>>>
>>>> http://pastebin.com/q7wys8yi
>>>>
>>>>
>>>> On Tuesday, October 22, 2013 9:55:16 PM UTC-4, Alex Miller wrote:
>>>>>
>>>>> I'd love to see a stack trace when that happens (could even be
>>>>> triggered by dumping stack in your static initializer if nothing else).
>>>>>
>>>>> On Saturday, October 12, 2013 3:17:50 AM UTC-5, Wujek Srujek wrote:
>>>>>>
>>>>>> So you are saying compilation is trying to instantiate class and run
>>>>>> static initializers? This seems very backward, are you sure?
>>>>>>
>>>>>>
>>>>>> On Sat, Oct 12, 2013 at 8:30 AM, Zach Oakes <zso...@gmail.com> wrote:
>>>>>>
>>>>>>> I should add, I am aware I can bring in a class dynamically with
>>>>>>> Class/forName, and that is what I ended up doing for the Timer class.
>>>>>>> However, this is not always practical, and sometimes is simply not an
>>>>>>> option if aot-compilation is required.
>>>>>>>
>>>>>>>
>>>>>>> On Saturday, October 12, 2013 2:28:38 AM UTC-4, Zach Oakes wrote:
>>>>>>>>
>>>>>>>> I recently learned that merely importing a Java class in Clojure
>>>>>>>> causes static initializers to be run. Sometimes, this causes
>>>>>>>> compilation
>>>>>>>> errors, because they are written with the assumption that they will
>>>>>>>> only be
>>>>>>>> run during runtime.
>>>>>>>>
>>>>>>>> I ran into this just now while trying to make a simple Clojure game
>>>>>>>> with LibGDX. After simply importing its Timer class, I began getting
>>>>>>>> compilation errors. The stack trace shows it is due to a static
>>>>>>>> initializer<https://github.com/libgdx/libgdx/blob/511b557c1a2d23bf8110a05b0ef54cc20b7f958d/gdx/src/com/badlogic/gdx/utils/Timer.java#L32>attempting
>>>>>>>> to instantiate the class!
>>>>>>>>
>>>>>>>> I also ran into this recently while trying to use RoboVM. My
>>>>>>>> question is, do I have any options? I haven't found many discussions
>>>>>>>> about
>>>>>>>> this here or elsewhere. This surprises me, because it seems like
>>>>>>>> something
>>>>>>>> more people should be running into.
>>>>>>>>
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