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Re: How to create an instance of a java class with type parameter
Thanks for the quick response. I will try with kawa@sourceware.org.
On Sat, Nov 6, 2010 at 7:33 AM, Per Bothner <per@bothner.com> wrote:
> On 11/05/2010 06:27 PM, Santosh Rajan wrote:
>>
>> I am trying to create an instance of a java class that requires a type
>> parameter. The compiler does not show an error.
>
> Presumably, it treats it as an unknown variable. ?Try compiling
> with --warn-undefined-variable --warn-unknown-member --warn-as-error
>
>> However I get an error at run time. Here is the code.
>>
>> ?(android.widget.ArrayAdapter<String> ?(this)
>> android.R$layout:simple_list_item_1))
>
> It treats is as the variable android.widget.ArrayAdapter<String>,
> and then at runtime you get an "unbound location" exception, right?
>
>> I seem to be doing something wrong here. Is there a correct way to do it?
>
> Kawa does not support parameterized types. ?Which is OK, since neither
> does the JVM, nor (I presume) Dalvik.
>
> Just write android.widget.ArrayAdapter .
>
> (Adding support for parameterized types is on the wishlist, since it
> would allow better type inference and better type checking. ?But other
> items have higher priority ...)
> --
> ? ? ? ?--Per Bothner
> per@bothner.com ? http://per.bothner.com/
>
--
http://hi.im/santosh