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!
