| commit | a3e062128012927450500111a1a05c1cfc4023f2 | [log] [tgz] |
|---|---|---|
| author | Elias Naur <elias.naur@gmail.com> | Tue Jun 14 11:58:31 2016 +0200 |
| committer | Elias Naur <elias.naur@gmail.com> | Thu Jun 23 18:55:48 2016 +0000 |
| tree | 6b635f3f2fa7c4893c3508d0de59728e64f90b07 | |
| parent | 3465f91246ae77a87fbf011cc23ad4e2abeb0072 [diff] |
mobile/bind: use objects to pass errors across the language barrier Gobind uses strings for passing errors across the language barrier. However, since Gobind doesn't have a concept of a nil string, it can't separate an empty native string from a nil string. In turn, that means that empty errors, exceptions or NSError * with an empty description are treated as no error. With ObjC, empty errors are replaced with a default string to workaround the issue, while with Java empty errors are silently ignored. Fix this by replacing strings with actual error objects, wrapping the Go error, Java Throwable or ObjC NSError *, and letting the existing bind machinery take care of passing the references across. It's a large change for a small corner case, but I believe objects are a better fit for exception that strings. Error objects also naturally leads to future additions, for example accessing the exception class name or chained exception. Change-Id: Ie03b47cafcb231ad1e12a80195693fa7459c6265 Reviewed-on: https://go-review.googlesource.com/24100 Reviewed-by: David Crawshaw <crawshaw@golang.org>
The Go mobile repository holds packages and build tools for using Go on mobile platforms.
Package documentation as a starting point:
The Go Mobile project is experimental. Use this at your own risk. While we are working hard to improve it, neither Google nor the Go team can provide end-user support.
This is early work and installing the build system requires Go 1.5. Follow the instructions on golang.org/wiki/Mobile to install the gomobile command, build the basic and the bind example apps.
Contributions to Go are appreciated. See https://golang.org/doc/contribute.html.