Improve exception handling:

Improve exception handling:

* Translate native JS exceptions to corresponding Dart objects.

* Implement rethrow.

Also handle abstract methods and final fields correctly.

Finally, don't cancel compilation when seeing a continue statement, instead generate code that throws an exception.

Committed: https://code.google.com/p/dart/source/detail?r=4701

[kasperl, 2012-02-28 09:22:11]

LGTM.

https://chromiumcodereview.appspot.com/9474040/diff/1/dart/frog/leg/lib/js_he...
File dart/frog/leg/lib/js_helper.dart (right):

https://chromiumcodereview.appspot.com/9474040/diff/1/dart/frog/leg/lib/js_he...
dart/frog/leg/lib/js_helper.dart:1246: var type = JS('String', @'$0.type', ex);
This (ex.type) is very Chrome specific code. Maybe add a comment here or even
factor this out into a helper with a name that makes it obvious that this only
works on Chrome/V8.

[ngeoffray, 2012-02-28 10:23:15]

LGTM!

[ahe, 2012-02-28 16:25:52]

Hi Kasper and Nicolas,

Thank you for taking a look.

Cheers,
Peter

https://chromiumcodereview.appspot.com/9474040/diff/1/dart/frog/leg/lib/js_he...
File dart/frog/leg/lib/js_helper.dart (right):

https://chromiumcodereview.appspot.com/9474040/diff/1/dart/frog/leg/lib/js_he...
dart/frog/leg/lib/js_helper.dart:1246: var type = JS('String', @'$0.type', ex);
On 2012/02/28 09:22:11, kasperl wrote:
> This (ex.type) is very Chrome specific code. Maybe add a comment here or even
> factor this out into a helper with a name that makes it obvious that this only
> works on Chrome/V8.

Done.