hacky-zig-repl

Just a small wrapper program that provides a repl for the Zig programming language.

How to use it?

Clone this git repo with git clone --recurse-submodules

Build with the latest zig compiler:

cd hacky-zig-repl
zig build

Run with: ./zig-cache/bin/hacky-zig-repl

If needed specify the path to the zig compiler with the --zig option.

If you type a simple expression that doesn't end with ;, then it'll be assigned to a const variable and will be printed to the console:

>> 2 + 3
_0 = 5
>> "123" ++ "4"
_2 = 1234
>>

If you type a line that ends with ; then it's considered a full zig statement: >> var s = "1234";

You can type multi-line statements by opening one of (, [ or { and not closing it on the same line. The statement is considered complete when all (, [ and { are balanced/closed.

>> const S = struct {
>> a: u32,
>> fn doStuff(p: i32) i32 {
>>   return p + 4;
>> }
>> };
>>

There's a command that prints the last source listing that compiled successfully: ls

>> ls
const _0 = 2 + 3;
const _1 = "123" ++ "4";
var s = "1234";
const S = struct {a: u32,fn doStuff(p: i32) i32 {return p + 4;}};
>>

There is a builtin convenience function fn t(v: var) [] const u8 { return @typeName(@TypeOf(v)); }

>> var st = S{ .a = 42 };
>> t(st)
_4 = S
>>