Improved function call performance

[Boereck]

Hi, another change for method call performance. Some unnecessary time was spent in Function#invoke(Class returnType, Object[] inArgs, Map options). The method looked up the method object and the parameter types, although this information is already available, when invoking the method from Library$Handler#invoke(Object proxy, Method method, Object[] inArgs). So I refactored both classes a bit so that no unnecessary work is done. In my tests function calls are now measurably faster and produce fewer objects (->less garbage).

[dblock]

@Boereck You have to rebase with master. Do this:

# backup any changes, just in case

git checkout master
# rewind your master
git reset HEAD~100

# update from JNA/master
git pull upstream master
git push -f origin master
# now your master is in sync with JNA's

git checkout faster-method-calls
git rebase master
# fix conflicts
git push origin faster-method-calls -f

Then, review the diff here. It should look clean.

Another, possibly simpler way of doing this is to abandon this branch.

git checkout master
# rewind your master
git reset HEAD~100

# update from JNA/master
git pull upstream master
git push -f origin master
# now your master is in sync with JNA's

git checkout -b new-faster-method-calls
git merge faster-method-calls --squash
# the above just picks the changes, check the diff, make sure it's clean, commit, push
git add .
git commit -m "..."
git push origin new-faster-method-calls:faster-method-calls -f

[Boereck]

Thanks a lot for your help! I just started my vacation and am away until the 12th of August. I will take care of this as soon as I am back. Currently I am just equipped with my phone.

[Boereck]

So the diff here looks good now. You could have a second look now. Thanks!

[twall]

Please re-merge from master, which should fix the CI issue, then this can be merged.

[Boereck]

I moved the commit on top of the latest master now.

[twall]

Please resolve the conflict so I can merge this. Sorry for the long delay.