Wren: 一种优雅的小型脚本语言

Wren: 一种优雅的小型脚本语言
Wren: A classy little scripting language

Wren 是一种新的、小型、快速且并发的脚本语言，设计用于嵌入应用程序。它受到 Smalltalk、Lua 和 Erlang 的启发，提供现代语法和基于类的对象模型——这是许多其他脚本语言中经常缺乏的特性。尽管代码量很小（不到 4,000 行！），Wren 仍然优先考虑可读性，具有清晰的注释。它通过快速编译器和高效的字节码实现速度。Wren 设计的核心是轻量级协程，通过协程实现轻松的并发。 Wren 没有外部依赖，标准库极小，并且具有简单的 C API，可使用 C99、C++98 及更高版本进行编译。它甚至可以在浏览器中运行，使其易于访问和实验。

## Wren：一种优雅的脚本语言 - 摘要 Wren 是一种新兴的脚本语言，正受到关注，其创建者同时也是著名书籍《Crafting Interpreters》的作者。讨论主要集中在 Wren 的设计选择上，特别是其受 Smalltalk 影响的面向对象方法，以及通过诸如复制继承等技术带来的性能优势。用户正在探索 Wren 作为 Lua 和 JavaScript 等语言的替代品，用于嵌入应用程序，特别提到了它在游戏引擎（如 Luxe）和 WASM 自定义运行时中的潜力。虽然 Wren 因其优雅和易于理解而受到赞扬，但对其类实现以及缺乏传统的元类继承存在一些争论。对话还涉及 Squirrel 和 LuaJIT 等相关语言，以及学习语言实现的资源。总而言之，Wren 被定位为一种有希望的选择，适用于寻求轻量级、高性能且经过深思熟虑的脚本语言的开发者。

Wren is a small, fast, class-based concurrent scripting language

Think Smalltalk in a Lua-sized package with a dash of Erlang and wrapped up in a familiar, modern syntax.

System.print("Hello, world!")

class Wren {
  flyTo(city) {
    System.print("Flying to %(city)")
  }
}

var adjectives = Fiber.new {
  ["small", "clean", "fast"].each {|word| Fiber.yield(word) }
}

while (!adjectives.isDone) System.print(adjectives.call())

Wren is small. The VM implementation is under 4,000 semicolons. You can skim the whole thing in an afternoon. It’s small, but not dense. It is readable and lovingly-commented.
Wren is fast. A fast single-pass compiler to tight bytecode, and a compact object representation help Wren compete with other dynamic languages.
Wren is class-based. There are lots of scripting languages out there, but many have unusual or non-existent object models. Wren places classes front and center.
Wren is concurrent. Lightweight fibers are core to the execution model and let you organize your program into a flock of communicating coroutines.
Wren is a scripting language. Wren is intended for embedding in applications. It has no dependencies, a small standard library, and an easy-to-use C API. It compiles cleanly as C99, C++98 or anything later.

You can try it in your browser!
If you like the sound of this, let’s get started.
Excited? You’re also welcome to get involved!

Wren: 一种优雅的小型脚本语言 Wren: A classy little scripting language

Wren is a small, fast, class-based concurrent scripting language

Wren: 一种优雅的小型脚本语言
Wren: A classy little scripting language