Is it possible to suppress these compiler warnings and not turn off all of the warnings at the same time?
On Sun, Oct 30, 2011 at 9:04 PM, JM <[email protected]> wrote: > just don't use the try-catch block: > > str1 = kf.get_string(group, key); > str2 = kf.get_string(group, key); > str3 = kf.get_string(group, key); > > This will give you a warning during compile but should be the thing you > are looking for. > > jm. > > > Am Sonntag, den 30.10.2011, 19:04 +0800 schrieb PCMan: > > Hi all, > > I started using Vala recently and I'm confused by exception handling in > > Vala. > > I'm quite used to write C/GObject code and handles GError. > > However, with exceptions, flow-control becomes quite different. > > For example, I'm reading values from a KeyFile. > > With C/glib, I can pass NULL GError* pointer to g_key_file_get_string() > to > > ignore any errors. > > If the errors are not critical for my program, it's safe to ignore them > all > > like this. > > > > str1 = g_key_file_get_string(kf, group, key, NULL); > > str2 = g_key_file_get_string(kf, group, key, NULL); > > str3 = g_key_file_get_string(kf, group, key, NULL); > > if( !str1 && !str2 && !str3) > > return FALSE; > > > > With Vala, I cannot do this. If I use try/catch, things are totally > > different. > > > > try { > > str1 = kf.get_string(group, key); > > str2 = kf.get_string(group, key); > > str3 = kf.get_string(group, key); > > } > > catch(KeyFile.Error error) { > > // If anyone of the preceding calls fails, we get here. > > // then I cannot continue getting the remaining strings from key > file. > > } > > If get str1 fails, the excution jumps to catch() block, and I cannot > > continue reading str2 and str3. > > > > Of course I can do this: > > try { > > str1 = kf.get_string(group, key); > > } > > catch(KeyFile.Error error) { > > } > > try { > > str2 = kf.get_string(group, key); > > } > > catch(KeyFile.Error error) { > > } > > try { > > str3 = kf.get_string(group, key); > > } > > catch(KeyFile.Error error) { > > } > > > > Apparently, this looks even worse then its C/glib counterpart. > > So, how to ignore the GErrors/vala excaptions anyways? > > > > Thank you all. > > _______________________________________________ > > vala-list mailing list > > [email protected] > > http://mail.gnome.org/mailman/listinfo/vala-list > > > _______________________________________________ > vala-list mailing list > [email protected] > http://mail.gnome.org/mailman/listinfo/vala-list >
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