git

commit 8c7c7a83f4a1b4f3ff7049aef37728a34e975108
parent 9e4165548dbdd5d72b281cc5d773e54edef0c63d
Author: Luís Ferreira <contact@lsferreira.net>
Date:   Mon, 15 Nov 2021 16:07:51 +0000

posts: add scope(exit) destroy function to call foo dtor

Signed-off-by: Luís Ferreira <contact@lsferreira.net>

Diffstat:
M
content/posts/zet-1-classes-betterc-d.md
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/content/posts/zet-1-classes-betterc-d.md b/content/posts/zet-1-classes-betterc-d.md
@@ -81,7 +81,8 @@ T alloc(T, Args...)(auto ref Args args)
 
 void destroy(T)(ref T t)
 {
-    t.__dtor();
+    static if (__traits(hasMember, T, "__dtor"))
+        t.__dtor();
     () @trusted {
         import core.memory : pureFree;
         pureFree(cast(void*)t);
@@ -109,6 +110,7 @@ extern(C++) class Foo
 extern(C) int main()
 {
     Foo foo = alloc!Foo(2, 2.0f);
+    scope(exit) destroy(foo);
 
     int a = foo.a;   // 4
     float b = foo.b; // 2.0