gdzig memory leak example

test_node.zig

// Registration omitted for brevity

const TestNode = struct {
    base: *godot.class.RefCounted,

    pub fn create(allocator: *Allocator) !*TestNode {
        var self = try allocator.create(TestNode);
        self.* = .{
            .base = godot.class.RefCounted.init(),
        };
        self.base.setInstance(TestNode, self);
        return self;
    }

    pub fn destroy(self: *TestNode, allocator: *Allocator) void {
        self.base.destroy();
        allocator.destroy(self);
    }

    pub fn fillArray(_: *TestNode, out_arr: godot.builtin.Array) void {
        var out_arr_copy = out_arr.copy();
        defer out_arr_copy.deinit();
        for (0..1024) |i| {
            var int: i64 = @intCast(i);
            out_arr_copy.pushBack(.wrap(i64, &int));
        }
    }

    pub fn makeArray(_: *TestNode) godot.builtin.Array {
        var arr = godot.builtin.Array.init();
        for (0..1024) |i| {
            var int: i64 = @intCast(i);
            arr.pushBack(.wrap(i64, &int));
        }
        return arr;
    }
};

// In GDScript you have something like this
// var test_node = TestNode.new()
// func _process(_delta: float):
//     var values = []
//     test_node.fill_array(values)
//     print(values.size())