Meg's Mirrors

zig

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