Zigのお勉強

❯ asdf plugin add zig
❯ asdf install zig latest
❯ asdf list zig
❯ asdf global zig 0.11.0

❯ mkdir hello-zig
❯ zig init-exe
❯ zig build run

❯ zig build
/home/s0ar/projects/ziglings-exercises/build.zig:37:9: error: Sorry, it looks like your version of zig is too old. :-(
                                                              
                                                              Ziglings requires development build
                                                              
                                                              0.12.0-dev.2043
                                                              
                                                              or higher.
                                                              
                                                              Please download a development ("master") build from
                                                              
                                                              https://ziglang.org/download/
                                                              
                                                              
        @compileError(std.fmt.comptimePrint(error_message, .{min_zig}));
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/s0ar/projects/ziglings-exercises/build.zig:291:29: error: struct 'child_process.ChildProcess' has no member named 'run'
        const result = Child.run(.{
                       ~~~~~^~~~
/home/s0ar/.asdf/installs/zig/0.11.0/lib/std/child_process.zig:20:26: note: struct declared here
pub const ChildProcess = struct {
                         ^~~~~~

❯ asdf list all zig
0.2.0
0.3.0
0.4.0
0.5.0
0.6.0
0.7.0
0.7.1
0.8.0
0.8.1
0.9.0
0.9.1
0.10.0
0.10.1
0.11.0
master

❯ asdf install zig master
Downloading https://ziglang.org/builds/zig-linux-x86_64-0.12.0-dev.2543+9eda6ccef.tar.xz...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 45.9M  100 45.9M    0     0  17.0M      0  0:00:02  0:00:02 --:--:-- 17.0M

❯ asdf list zig
 *0.11.0
  master

❯ asdf global zig master

❯ zig version
0.12.0-dev.2543+9eda6ccef

❯ zig build              
         _       _ _
     ___(_) __ _| (_)_ __   __ _ ___
    |_  | |/ _' | | | '_ \ / _' / __|
     / /| | (_| | | | | | | (_| \__ \
    /___|_|\__, |_|_|_| |_|\__, |___/
           |___/           |___/

    "Look out! Broken programs below!"

Compiling: 001_hello.zig
error: the following command failed with 1 compilation errors:
/home/s0ar/.asdf/installs/zig/master/zig build-exe /home/s0ar/projects/ziglings-exercises/exercises/001_hello.zig --cache-dir /home/s0ar/projects/ziglings-exercises/zig-cache --listen=- 
/home/s0ar/.asdf/installs/zig/master/lib/std/start.zig:570:45: error: 'main' is not marked 'pub'
    switch (@typeInfo(@typeInfo(@TypeOf(root.main)).Fn.return_type.?)) {
                                        ~~~~^~~~~
exercises/001_hello.zig:19:1: note: declared here
fn main() void {
^~~~~~~~~~~~~~
/home/s0ar/.asdf/installs/zig/master/lib/std/start.zig:519:12: note: called from here
    return @call(.always_inline, callMain, .{});
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/s0ar/.asdf/installs/zig/master/lib/std/start.zig:469:36: note: called from here
    return initEventLoopAndCallMain();
           ~~~~~~~~~~~~~~~~~~~~~~~~^~
/home/s0ar/.asdf/installs/zig/master/lib/std/start.zig:425:17: note: called from here
    std.os.exit(@call(.always_inline, callMainWithArgs, .{ argc, argv, envp }));
                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
referenced by:
    _start: /home/s0ar/.asdf/installs/zig/master/lib/std/start.zig:338:40
    remaining reference traces hidden; use '-freference-trace' to see all reference traces

Ziglings hint: DON'T PANIC!
Read the compiler messages above. (Something about 'main'?)
Open up the source file as noted below and read the comments.

(Hints like these will occasionally show up, but for the
most part, you'll be taking directions from the Zig
compiler itself.)

Edit exercises/001_hello.zig and run 'zig build' again.