"Use of unassigned local variable" CS0165 issue #4272
Description
I'm getting a complaint in my code using VS 2015 and .Net 4.5.2, and am not quite understanding why.
If I call
MyObject o;
if (objects != null && objects.TryGetValue(objectName, out o))
v.Property= o;then everything is fine. The following two cases however give me an error, and I'm not quite understanding why.
MyObject o;
if (objects != null ? objects.TryGetValue(objectName, out o) : false)
v.Property= o; // <-- error CS0165: Use of Unassigned local variable 'o'and
MyObject o;
bool b;
if (objects != null)
b = objects.TryGetValue(objectName, out o);
else
b = false;
if (b)
v.Property = o; // <-- error CS0165: Use of Unassigned local variable 'o'In either of the last 2 cases, I don't see how o can be used unless TryGetValue is called, which means o should be initialized.
Is this a bug? Or I am I missing something?