On Monday 05 October 2015 21:07, Meta wrote:
> There's a critical flaw in `scoped`. Observe:
>
> import std.stdio;
> import std.typecons;
>
> class A
> {
> string name;
>
> this(string name)
> {
> this.name = name;
> writeln("Creating A");
> }
>
> ~this()
> {
> writeln("Destroying A");
> }
>
> void hello()
> {
> writeln("Hello, ", this.name);
> }
> }
>
> void main()
> {
> auto a1 = scoped!A("Foo");
> a1.hello();
>
> A a2 = scoped!A("Foo");
> a2.hello();
> }
>
>
> The output:
>
> Creating A
> Hello, Foo
> Creating A
> Destroying A
> Destroying A
> object.Error: Access Violation
You're getting at the segfault, right? The example can then be much simpler:
----
import std.typecons;
class A
{
void hello() {}
}
void main()
{
A a2 = scoped!A();
a2.hello(); /* segfault */
}
----
