On 2020-09-04 12:16, 60rntogo wrote:
Consider the following code.
foo.d
---
module foo;
struct Foo
{
private int i;
}
---
main.d
---
void main()
{
import std.stdio;
import foo;
auto x = Foo();
writeln(x);
// ++x.i;
++x.tupleof[0];
writeln(x);
}
---
As expected, the commented line does not compile. If I uncomment it, I
get the error "no property i for type foo.Foo". However, the rest of the
code compiles just fine and outputs:
---
Foo(0)
Foo(1)
---
This appears to defeat the purpose of declaring i private. What am I
missing?
It's useful for serialization and, as you can see in your example, for
debugging as well. `writeln` will print the values of the fields in a
struct, even for private fields.
--
/Jacob Carlborg
