Peter Reijnders 875c74b211 fix: align ObjList capacity and count types with ObjMap's uint32_t
Change the `capacity` and `count` fields in `ObjList` from `int` to `uint32_t` to match the
types used in `ObjMap`, ensuring consistency between the two structures. Update all loop
variables and index calculations in `wren_core.c` and `wren_value.c` that interact with
these fields to use `uint32_t` instead of `int`, and remove the now-unnecessary negative
bounds check in `list_iterate` since unsigned types cannot be negative.
2015-03-08 11:33:29 +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.

IO.print("Hello, world!")

class Wren {
  flyTo(city) {
    IO.print("Flying to ", city)
  }
}

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

while (!adjectives.isDone) IO.print(adjectives.call())
  • Wren is small. The codebase is about 5,000 lines. 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, give it a try! Even better, you can contribute to Wren itself.

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%
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