Re: Re: writing two different bytecode parts at the same time

Eric Bruneton wrote:
> Eugene Kuleshov wrote:
>>
>>  If I understand you correctly, right now, the closest would be to use 
>> several MethodNode instances from the tree package (those implement 
>> MethodVisitor interface) and then use InsnLists from those instances 
>> to assemble them together and call insnList.accept(methodVisitor) 
>> after that to get the result.
> 
> for me the simplest solution is to generate two versions of each method, 
> one for the slow path, the other for the fast path. Indeed you can use 
> several MethodVisitor at the same time, provided they are related to 
> different methods. Hence this code

my problem here is, that the fast path is not the fast path till the end 
of the method. I have to continuously check if the fast path is still 
valid. And if it is no longer valid I have to jump to the according slow 
path part. That means for me I need it in one method and I need to let 
it share labels.

>  >> mv1.visitInsn(ILOAD, 1)
>  >>
>  >> mv2.visitInsn(ILOAD, 1)
>  >> mv2.visitMethodcall(SBA.box(I)Object)
> 
> is ok, provided mv1 and mv2 refer to different methods (and use 
> different labels - you cannot share a label between two visitors).

So you say the solution Eugene gave will not work? Or did I get 
something wrong here?

  bye Jochen

-- 
Jochen "blackdrag" Theodorou
The Groovy Project Tech Lead (http://groovy.codehaus.org)
http://blackdragsview.blogspot.com/

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