Meg's Mirrors

zig

1	#exe {
2	-Mroot=main.zig
3	#}
4
5	#write main.zig {
6	pub fn main() !void {
7	try @import("foo.zig").hello();
8	}
9	#}
10	#write foo.zig {
11	pub fn hello() !void {
12	try std.Io.File.stdout().writeStreamingAll(io, "Hello, World!\n");
13	}
14	#}
15	#update "error"
16	#check errors {
17	foo.zig:2:9: error: use of undeclared identifier 'std'
18	#}
19
20	#write foo.zig {
21	const std = @import("std");
22	pub fn hello() !void {
23	try std.Io.File.stdout().writeStreamingAll(io, "Hello, World!\n");
24	}
25	const io = std.Io.Threaded.global_single_threaded.io();
26	#}
27	#update "fix the error"
28	#check stdout {
29	Hello, World!
30	#}
31
32	#write foo.zig {
33	const std = @import("std");
34	pub fn hello() !void {
35	try std.Io.File.stdout().writeStreamingAll(io, hello_str);
36	}
37	const io = std.Io.Threaded.global_single_threaded.io();
38	#}
39	#update "add new error"
40	#check errors {
41	foo.zig:3:52: error: use of undeclared identifier 'hello_str'
42	#}
43
44	#write foo.zig {
45	const std = @import("std");
46	const hello_str = "Hello, World! Again!\n";
47	pub fn hello() !void {
48	try std.Io.File.stdout().writeStreamingAll(io, hello_str);
49	}
50	const io = std.Io.Threaded.global_single_threaded.io();
51	#}
52	#update "fix the new error"
53	#check stdout {
54	Hello, World! Again!
55	#}