Hi Eloy,
The way I'm initializing the ruby objects is with a custom class method as they
must be intialized with arguments.
For example, here is the macruby class method:
def self.initWithPath(path, isActive:active)
new(path, active)
end
Which means that in Objective-C I'm using the somewhat verbose code below:
[rubyClass performSelector:@selector(initWithPath:isActive:)
withObject:path
withObject:[NSNumber
numberWithBool:YES]];
If the class could be initialized without arguments then I could use:
[[rubyClass alloc] init];
But I've not tried that yet. I imagine it would be a tiny bit faster again, as
it doesn't use 'performSelector'.
Alan
On 17 Jan 2011, at 17:36, Eloy Duran wrote:
> You're welcome Alan :)
>
> Hmm, I wonder if this big impact is because of skipping evaling everytime,
> which iirc is the only thing that evaluateString does, or something else is
> happening... Have you also tried doing [rubyClass new] instead of alloc init?
> I thought they should do the same.
>
> On 17 jan. 2011, at 15:57, Alan Skipp <al_sk...@fastmail.fm> wrote:
>
>> Brilliant suggestion Eloy, much appreciated.
>> There's a noticeable improvement in speed using this technique. In the
>> method which added ruby objects to an array, 77% of the time was spent on
>> initialising the objects, that's now down to 35%.
>>
>> Alan
>>
>> On 17 Jan 2011, at 13:32, Eloy Durán wrote:
>>
>>> After the Ruby code that defines the class has been evaled, you should be
>>> able to do the following:
>>>
>>> Class rubyClass = NSClassFromString(@"RubyClass");
>>> id rubyObject = [[rubyClass alloc] init];
>>>
>>> On Jan 17, 2011, at 2:05 PM, Alan Skipp wrote:
>>>
>>>> Hi,
>>>> Is there any way to inform an Objective-C class of the existence of a ruby
>>>> class so that instances can be created in Objective-C code?
>>>> Currently I am doing the following:
>>>>
>>>> [[MacRuby sharedRuntime] evaluateString:[NSString
>>>> stringWithFormat:@"RubyClass.new('%@')", arg]];
>>>>
>>>> If I'm adding quite a few objects (300+) to an array in a loop, this line
>>>> of code is quite slow. My assumption (which may be false) is that either
>>>> of the 3 options below would be quicker.
>>>>
>>>> [RubyClass performSelector:@selector(new:) withObject:arg];
>>>> [RubyClass new:arg];
>>>> [[RubyClass alloc] initWithArg:arg];
>>>>
>>>> Are any of those options (or an equivalent) a possibility?
>>>>
>>>> Alan
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>>>
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