[armedbear-devel] Question about calling Java

[dmiles@users.sourceforge.net]

On Thu, Feb 4, 2010 at 6:39 AM, Axel Rauschmayer <axel at rauschma.de> wrote:

> Quick comment: The latest incarnation of the Java FFI API allows one to use
> strings whenever a class object or a method object is required:
> (jnew "my.package.MyClass" arg) for new my.package.MyClass(arg)
>

Something nice is the (jnew "my.package.MyClass" arg)  is going to be close
to what one day will be emitted bytecode wise.



> (jcall "methodName" obj arg) for obj.methodName(arg)
>


Then with this one as (jcall "pckgname.ClassOfArg" "methodName" obj arg)
will be close to bytecoded form
[I am not suggesting doing it right now since to *always* do it loses
expressablity of code]



>
> This is certainly good enough for me. I don't know how efficient the
> produced code is, but this is currently not an issue for me.
>


So do not be afraid of strings since that technically that is what will be
emmited into classfile bytecode (later on) :)

Note: if someone uses (jcall (jmethod "plgname.ClassOfArg"  "methodName")
obj arg)
  would could emit the invokevitual "plgname.ClassOfArg"  "methodName" obj
[args]; into bytecode
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