Discussion on: Testing and Files as Structs

Super helpful to see both an actual example of "zig imports files as structs" and a clear concise zig implementation of a familiar data structure.

The @import documentation mentions "Zig source files are implicitly structs" but its great to see an actual example!

Except (correct me if I'm wrong) with the bare struct contents separated into Node.zig - "Node" no longer has a declaration as the type, so for that to work wouldn't Node.zig then need to become;

data: u8,
left: ?*@This(),
right: ?*@This(),

Or, with a 'Self' element and also using your defaults example;

const Self = @This();
data: u8,
left: ?*Self = null,
right: ?*Self = null,

Also on that final main.zig snippet I found I needed to include the file name extension in the @import target;

const Node = @import("Node.zig");

Wondering if maybe I should have done something in the generated build.zig ?