pub fn format(self: Path, writer: *Io.Writer) Io.Writer.Error!void
pub fn format(self: Path, writer: *Io.Writer) Io.Writer.Error!void { if (Io.Dir.path.isAbsolute(self.sub_path)) { return writer.writeAll(self.sub_path); } else if (self.root_dir.path) |p| { var bufs: [3][]const u8 = .{ p, Io.Dir.path.sep_str, self.sub_path }; return writer.writeVecAll(bufs[0..if (self.sub_path.len > 0) 3 else 1]); } else if (self.sub_path.len > 0) { return writer.writeAll(self.sub_path); } else { return writer.writeByte('.'); } }