[squeak-dev] Re: [ANN] Squeak on Android
andreas.raab at gmx.de
Tue Jan 19 08:53:38 UTC 2010
Andreas Raab wrote:
> 1) Write generic bridge to Java (using JNI). That's a sizable chunk of
> initial work, but once it's done you will be able to interact seamlessly
> between Squeak and Java.
And now that I've been thinking about it, it actually even seems more
reasonable because you can leverage the FFI to do it. What I'd do is to
add a new calling convention called 'java' and then use the FFI to spec
it along the lines of:
"public final InputStream open (String fileName)"
<java: JInputStream 'android.content.res.AssetManager.open' (JString)>
and then provide the necessary level of primitive coercion via having
the FFI recognize the <java:> calling convention and dispatch to a
JNIPlugin which implements the necessary glue code. Being able to ride
on top of the FFI really simplifies implementing all of the type
manipulation so you can concentrate on the glue code itself. I'd say
this cuts down on the required time significantly (to the point where I
might even spend another weekend looking at it).
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