Meg's Mirrors

zig

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