lib/cocoa: add services to `NSString` to convert to Nit strings

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/cocoa/foundation.nit b/lib/cocoa/foundation.nit
index 06c8ffd..c476df9 100644 (file)
--- a/lib/cocoa/foundation.nit
+++ b/lib/cocoa/foundation.nit
@@ -30,6 +30,11 @@ end
 # Created using `Text::to_nsstring`.
 extern class NSString in "ObjC" `{ NSString * `}
        super NSObject
+
+       # Get an UTF8 encoded `char*` copy of `self`
+       fun utf8_string: NativeString in "ObjC" `{ return (char *)[self UTF8String]; `}
+
+       redef fun to_s do return utf8_string.to_s
 end
 
 redef class NativeString