Nathan Hourt 67ca0e04f6 fix: correct bitwise or documentation to describe or instead of and behavior
The documentation for the bitwise or operator incorrectly stated that each bit
is true only where corresponding bits of both inputs were true, which describes
the bitwise and operator. Updated to correctly state that each bit is true where
corresponding bits of one or both inputs were true.
2017-03-30 22:45:12 +00:00

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 an army 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.

If you like the sound of this, let's get started. You can even try it in your browser! Excited? Well, come on and get involved!

Build Status

S
Description
Highly customized version of the wren programming language. It has all the modules that you would expect in a std library including http, websockets, sqlite3 and jinja-like templating engine. The idea is to make it suitable for web development.
Readme
22 MiB
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C++ 6%
Makefile 2.9%
Other 5.5%