Hi,

Does anyone know how to detect if there is a setter for a property? The
code below prints the same thing for both
the setter and the getter of "front":

==============================
import std.traits;

class Foo {
uint num;

@property ref uint front() {
return num;
}
@property void front(uint i) {
num = i;
}

ref uint front2() {
return num;
}
}

template isProperty(alias func) if (isCallable!(func)) {
enum isProperty = (functionAttributes!(func) &
FunctionAttribute.PROPERTY)==0 ? false : true;
}

template hasSetter(alias func) if (isCallable!(func)) {
enum hasSetter = (isProperty!(func) && ParameterTypeTuple!(func).length >
0 && ReturnType!(func).stringof != "void") ? true : false;
}

void main() {
Foo foo;
pragma(msg, hasSetter!(foo.front));

static if (isProperty!(foo.front)) {
pragma(msg, "property");
} else {
pragma(msg, "not a property");
}

alias MemberFunctionsTuple!(Foo,"front") fronts;
foreach (s; fronts) {
pragma(msg, ReturnType!(s)); // this line just prints "uint" for both
"front" properties!
}
}
============================


Is this a compiler bug? Or am I wrong again?

Thanks
Rory

Rory McGuire
R&D

Tel : +27 (033) 386 7263

Cell : +27 (082) 856 3646
Email: rmcguire@neonova.co.za
Website: www.neonova.co.za
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