How call c function using ordinal

I had to do that for one library here, this should get you started. This is all on class side of your ExternalInterface subclass,

 

initialize

 self initializeOrdinals.

 

initializeOrdinals

 self ordinalsData readStream linesDo: [:line | self initializeOrdinalFromLine: line]

 

initializeOrdinalFromLine: string

 | tokens func def ordinal |

 string isEmpty ifTrue: [^nil].

 tokens := string tokensBasedOn: Character space.

 def := (tokens at: 2) tokensBasedOn: $@.

 def size ~= 2 ifTrue: [^nil].

 func := def first.

 func := func copyFrom: (func first = $_ ifTrue: [2] ifFalse: [1]) to: func size.

 ordinal := (tokens at: 4) asNumber.

 self initializeFunction: func withOrdinal: ordinal

 

initializeFunction: func withOrdinal: ordinal

 ((self instanceBehavior methodDictionary values

            select: [:ea | ea isKindOf: ExternalMethod])

                        detect: [:ea | (ea selector tokensBasedOn: $:) first asString = func asString]

                        ifNone: [self error: 'function not defined - ' , func])

                        ifNotNil: [:obj | obj ordinal: ordinal]

 

where ordinalsData was a string in form of,

 

ordinalsData

 ^'// _Func_Name1@12; Index 1;            Information not available

   // _Func_Name2@12; Index 2;             Information not available’

 

Etc,

 

Obviously a bit of hack, but worked just fine nonetheless. You can simplify it quite a bit if you control how your ordinal data file is constructed,

 

Hope this helps,