ah yes… I wrote it by heart :P you need to declare the array type size, otherwise there is no point on it :)
Char100 := FFITypeArray ofType: aTypeName size: elements. … and the rest is still the same (you replace FFITypeArray class>>ofType:size: occurrences with Char100) Esteban > On 8 Nov 2016, at 14:29, Dimitris Chloupis <kilon.al...@gmail.com> wrote: > > by the way your code is wrong there is no FFITypeArray ofType: so it looks I > will have to go straight to > > FFITypeArray ofType:'char' size:100 > > of course for my case what you mention as > > FFITypeArray ofType: #char size: 100) fromHandle: (handle copyFrom: 1 to: 100) > > is the one that does exactly what I want. > > > > On Tue, Nov 8, 2016 at 2:38 PM Esteban Lorenzano <esteba...@gmail.com > <mailto:esteba...@gmail.com>> wrote: > yes please :) > >> On 8 Nov 2016, at 13:32, Dimitris Chloupis <kilon.al...@gmail.com >> <mailto:kilon.al...@gmail.com>> wrote: >> >> then great work^2 >> >> Do you want me to add this information to the UFFI documentation ? Probably >> I will also add some more examples for handles, pointers etc. >> >> I assume this is the repo for the docs of UFFI >> >> https://github.com/SquareBracketAssociates/PharoInProgress >> <https://github.com/SquareBracketAssociates/PharoInProgress> >> >> correct ? >> >> On Tue, Nov 8, 2016 at 2:12 PM Esteban Lorenzano <esteba...@gmail.com >> <mailto:esteba...@gmail.com>> wrote: >>> On 8 Nov 2016, at 12:55, Dimitris Chloupis <kilon.al...@gmail.com >>> <mailto:kilon.al...@gmail.com>> wrote: >>> >>> Thank you Esteban >>> >>> By the way I really love the design of UFFI , very clean and quite easy to >>> understand , great work to you and Igor :) >> >> UFFI is just mine ;) >> (but I sanded in giant shoulders as I took Igor work as inspiration… and to >> “borrow” many cool ideas) >> >> Esteban >> >>> >>> On Tue, Nov 8, 2016 at 1:54 PM Esteban Lorenzano <esteba...@gmail.com >>> <mailto:esteba...@gmail.com>> wrote: >>>> On 8 Nov 2016, at 12:49, Dimitris Chloupis <kilon.al...@gmail.com >>>> <mailto:kilon.al...@gmail.com>> wrote: >>>> >>>> I was reaching a similar conclusion >>>> >>>> Currently I have a void pointer to the struct with the members I mentioned >>>> >>>> I can get char[100] >>>> >>>> pointerToStruct fromCString >>>> >>>> and I can get the int with >>>> >>>> pointerToStruct getHandle integerAt: 101 size:4 signed: false >>>> >>>> so if I want to pass the address of the pointer to my YourStruct instance >>>> will I have to initialize with >>>> >>>> YourStruct fromHandler: (pointerToStruct getHandle) >>>> >>>> is this a correct and safe way to pass the address ? >>> >>> yes. >>> >>> Esteban >>> >>>> >>>> >>>> On Tue, Nov 8, 2016 at 1:21 PM Esteban Lorenzano <esteba...@gmail.com >>>> <mailto:esteba...@gmail.com>> wrote: >>>> it never could. >>>> you need to do a “special type”, who has to be something like: >>>> >>>> YourStruct class>>initialize >>>> Char100 := FFITypeArray ofType: #char. >>>> >>>> fieldsDesc >>>> ^ #( >>>> Char100 data; >>>> int count; >>>> ) >>>> >>>> but then… you want to optimise that and in field accessors, who will look >>>> something like this: >>>> >>>> YourStruct >>data >>>> "This method was automatically generated" >>>> ^(FFITypeArray ofType: #char size: 100) fromHandle: (handle >>>> copyFrom: 1 to: 100) >>>> >>>> you can change that for: >>>> >>>> YourStruct >>data >>>> "This method was automatically generated" >>>> ^Char100 fromHandle: (handle copyFrom: 1 to: 100) >>>> >>>> and same for setter. >>>> (other way will work, but it will be suboptimal) >>>> >>>> Esteban >>>> >>>> > On 8 Nov 2016, at 12:10, Dimitris Chloupis <kilon.al...@gmail.com >>>> > <mailto:kilon.al...@gmail.com>> wrote: >>>> > >>>> > I have FFIExternalStructure which has at class side >>>> > >>>> > fieldsDesc >>>> > ^#( >>>> > char data[100]; >>>> > int count; >>>> > ) >>>> > >>>> > if I try to do >>>> > >>>> > EphCPPTestStructure rebuildFieldAccessors . >>>> > >>>> > in order to generate the accessors for the members of the struct it >>>> > complains with an error that it does not recognise the type of " [ " >>>> > >>>> > Does that mean that char arrays are other arrays are not supported as >>>> > struct members or will I have to do this manually ? >>>> >>>> >> >
