works with typeinfo!
void SETTER(T, string member)(Object target, Variant value)
{
T tt = cast(T)target;
if (!tt)
throw new ReflectionException("target is null or not " ~T.stringof
~" value: " ~target.toString());
if(!value.convertsTo!( typeof(__traits(getMember, T, member)) ))
throw new ReflectionException("Can't convert " ~value.stringof ~" to
" ~typeof(__traits(getMember, T, member)).stringof);
__traits(getMember, tt, member) = value.coerce!(
typeof(__traits(getMember, T, member)) );
}
"Lloyd Dupont" wrote in message news:itcthc$1onk$1...@digitalmars.com...
I'm trying to build an introspection system for a project I have.
I already have a working template to get members value
=== working members getter ===
Variant GETTER(T, string member)(Object target)
{
T tt = cast(T)target;
if (!tt)
throw new ReflectionException("target is null or not " ~T.stringof
~" value: " ~target.toString());
return Variant(__traits(getMember, tt, member));
}
===========================
Now I'm trying to implement a working setter. I have a problem for testing
and converts the value.
Ideally I'd like something like the code below
===== not compiling setter ====
void SETTER(T, string member)(Object target, Variant value)
{
T tt = cast(T)target;
if (!tt)
throw new ReflectionException("target is null or not " ~T.stringof
~" value: " ~target.toString());
if(!value.convertsTo!( typeid(__traits(getMember, T, member))) )
throw new ReflectionException("Can't convert " ~value.stringof ~" to
" ~typeid(__traits(getMember, T, member)).toString());
__traits(getMember, tt, member) = value.coerce(
typeid(__traits(getMember, T, member)) );
}
==========================
it doesn't compile because I don't know how to get the type, at compile
time, of member "member" of type "T"
how do I do that please?
