meta.zig

const eql = @import("std").mem.eql;

fn field_adder(comptime Base: type, comptime name: []u8, comptime field_type: type) type {
    var info = @reflect(Base);
    var i : usize = 0
    while (i < @memberCount(Base)) : (i += 1) {
        if (eql(u8, @memberName(Base, i), name)) {
            @compileError("Member already present");
        }
    }
    
    info.add_member(name, @reflect(field_type));
    
    return @reify(info);
}