NullFile

pub const NullFile = switch (native_os) {
    .windows => struct {
        handle: ?windows.HANDLE = null,

        fn deinit(this: *@This()) void {
            if (this.handle) |handle| {
                windows.CloseHandle(handle);
                this.handle = null;
            }
        }
    },
    .wasi, .ios, .tvos, .visionos, .watchos => struct {
        fn deinit(this: @This()) void {
            _ = this;
        }
    },
    else => struct {
        fd: posix.fd_t = -1,

        fn deinit(this: *@This()) void {
            if (this.fd >= 0) {
                closeFd(this.fd);
                this.fd = -1;
            }
        }
    },
}