Hope 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 Hope {
  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())

• Hope is small. The VM implementation is under [4,000 semicolons][src]. You can skim the whole thing in an afternoon. It's small, but not dense. It is readable and [lovingly-commented][nan].

• Hope is fast. A fast single-pass compiler to tight bytecode, and a compact object representation help Hope [compete with other dynamic languages][perf].

• Hope is class-based. There are lots of scripting languages out there, but many have unusual or non-existent object models. Hope places [classes][] front and center.

• Hope is concurrent. Lightweight [fibers][] are core to the execution model and let you organize your program into an army of communicating coroutines.

• Hope is a scripting language. Hope is intended for embedding in applications. It has no dependencies, a small standard library, and [an easy-to-use C API][embedding]. It compiles cleanly as C99, C++98 or anything later.

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