Meg's Mirrors

zig

1	const S = @This();
2	x: u8,
3	y: u16 = 200,
4	pub fn main(init: std.process.Init) !void {
5	var stdout_writer = std.Io.File.stdout().writerStreaming(init.io, &.{});
6	printFieldCount(&stdout_writer.interface) catch |err| switch (err) {
7	error.WriteFailed => return stdout_writer.err.?,
8	};
9	printOneField(&stdout_writer.interface) catch |err| switch (err) {
10	error.WriteFailed => return stdout_writer.err.?,
11	};
12	}
13	fn printFieldCount(w: *Writer) Writer.Error!void {
14	try w.print("{d} ", .{@typeInfo(S).@"struct".field_names.len});
15	}
16	fn printOneField(w: *Writer) Writer.Error!void {
17	const val: S = .{ .x = 100 };
18	try w.print("{d}\n", .{val.x});
19	}
20	const std = @import("std");
21	const Writer = std.Io.Writer;