Le jeudi 29 janvier 2015 à 15:30 +0100, yannick inizan a écrit :
Vala translate your cast to a get_<type> function of your value.
ex:
Value v = "toto";
var val = (string)v; //equals to 'var val = v.get_string();'
so (Value)my_val is impossible because GLib.Value doesn't have a
get_value function.
2015-01-29 15:16 GMT+01:00 Guillaume Poirier-Morency
<guillaumepoiriermorency gmail com>:
I am working on Valum, a web micro-framework written in Vala
https://github.com/antono/valum
valac is generating very strange code that doesn't compile.
Part of the framework is about offering facilities to push
arbitrary
values into CTPL template environment.
At some point, I try to case a Value? to a non-null Value (I
have of
course tested the null case, I just want it to pass under
--enable-experimental-non-null)
vala --version
Vala 0.26.1
Here's the use case:
Value? v;
var val = (Value) v;
The error:
lvalue required as unary ‘&’ operand
I attached the full log and the bug is easily reproducible
(the sample
does it).
--
Guillaume Poirier-Morency <guillaumepoiriermorency gmail com>
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Thanks for the answer! That kind of code should be detected by Vala compiler as an error. What approach would you recommend to cast "Value?" to "Value" ? It's not that bad if it is not yet possible, but I would really like to build the whole projet with --enable-experimental-non-null ;) -- Guillaume Poirier-Morency <guillaumepoiriermorency gmail com>
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