https://github.com/ma91n/go-monkey-interpreter

Implement code that "Writing An Interpreter In Go" by Thorsten Ball
https://github.com/ma91n/go-monkey-interpreter

go golang

Last synced: 5 months ago
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Implement code that "Writing An Interpreter In Go" by Thorsten Ball

• Host: GitHub
• URL: https://github.com/ma91n/go-monkey-interpreter
• Owner: ma91n
• License: mit
• Created: 2019-09-09T07:37:17.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-08-15T05:46:10.000Z (over 5 years ago)
• Last Synced: 2025-07-04T09:07:43.086Z (6 months ago)
• Topics: go, golang
• Language: Go
• Size: 27.3 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# go-monkey-Interpreter

Implement code that "Writing An Interpreter In Go" by Thorsten Ball

## Abstract

[Go言語でつくるインタプリタ](https://www.oreilly.co.jp/books/9784873118222/) の実装です。

## Monkey Language Syntax

今回実装するmonkey言語のsyntax.

```monkey

# 代入

let x = 5 + "5";

# 関数

let five = 5;

let ten = 10;

let add = fn(x, y) {

  x + y;

}

let result = add(five, ten)

```

## Memo

* 字句解析

  * ソースコード --(字句解析)--> トークン列 ---(構文解析)--> 抽象構文木

  * 字句解析＝lexer

* Monkeylangによる式のsyntax

  * -5

  * !true

  * !false

  * 5+5

  * foo == bar

  * ((5+5) * 5) * 5

  * add(add(2,3), add(5, 10))

  * foo * bar /foobar

  * let add = fn(x, y) {return x+y};

  * 関数呼び出し

    * fn(x,y){return x+y}(5, 5)

  * if式がある

    * let result = if (10 > 5) {true} else {false};

* 用語（p50）

  * 前置演算子（prefix operator）--5

  * 後置演算子(postfix operator) foobar++

  * 中間演算子(infix operator) 5*8

  * 優先順 5+5*10