On 5/10/2018 1:43 PM, SrMordred wrote:
struct T
{
int x;
@property ref X(){ return x; }
@property X(int v)
{
x = v;
}
}
T t;
t.X += 10;
The setter 'x = v' are not executed because i´m returning the reference
of x.
And without the 'ref' the compiler complains because 'x' is not a lvalue.
Any solution to make it work like native arr.length+=10 works?
( I Thought on returning a struct with "+=" operator but it is a strange
solution )
I am relatively new to D and I was under the impression that that was a
limitation of @property functions.
But, re-reading the language reference, it gave this example (it returns
something from the write property, which seems odd), I modified to add
refs, and then it seems to work, but I am not sure if it is correct or not:
import std.stdio;
struct Foo
{
@property ref int data() { return m_data; } // read property
@property ref int data(int value) { return m_data = value; } //
write property
private:
int m_data;
}
void main()
{
Foo f;
f.data = 5;
f.data++;
f.data+= 2;
writeln(f.data);
}
