🐵 monkey.zig

Summury

We can learn how to make an interpreter in this book.
====> ☆☆☆ "Writing An Interpreter in Go" ☆☆☆
That interpreter is called Monkey in the book. The Monkey is written in Go in the book, but in this repository it is written in Zig.

Using Zig Version

Zig: v0.13.0

Supports

• Lexer
• Parser
• Evaluator
• REPL
• Test case
• Macro
• Compiler
• VM
• Linux
• Mac
• Windows
• Multibyte character

🐒 Example

REPL

$ zig build run
>> let a = 5
null
>> a
5
>> a + 10
15
>> let add = fn(x, y) { x + y }
null
>> add(10, 20)
30
>> let closure = fn(x) { a + x }
null
>> closure(10)
15
>> let new_closure = fn(a) { fn() { a; }; };
null
>> let closure = new_closure(99);
null
>> closure();
99

Fibonacchi

let fibonacci = fn(x) {
  if (x == 0) {
    return 0;
  } else {
    if (x == 1) {
      return 1;
    } else {
      fibonacci(x - 1) + fibonacci(x - 2);
    }
  }
};
fibonacci(15); #=> 610

Run tests

$ zig build test --summary all

Contributors

• ktanaka101 - creator, maintainer

License

MIT