Bob Nystrom
58e4d26648
Get rid of the separate opt-in IO class and replace it with a core System class. - Remove wren_io.c, wren_io.h, and io.wren. - Remove the flags that disable it. - Remove the overloads for print() with different arity. (It was an experiment, but I don't think it's that useful.) - Remove IO.read(). That will reappear using libuv in the CLI at some point. - Remove IO.time. Doesn't seem to have been used. - Update all of the tests, docs, etc. I'm sorry for all the breakage this causes, but I think "System" is a better name for this class (it makes it natural to add things like "System.gc()") and frees up "IO" for referring to the CLI's IO module.
58 lines
2.0 KiB
Markdown
58 lines
2.0 KiB
Markdown
^title Welcome
|
|
|
|
## 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][].
|
|
|
|
:::dart
|
|
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][src].
|
|
You can skim the whole thing in an afternoon. It's *small*, but not
|
|
*dense*. It is readable and [lovingly-commented][nan].
|
|
|
|
* **Wren is fast.** A fast single-pass compiler to tight bytecode, and a
|
|
compact object representation help Wren [compete with other dynamic
|
|
languages][perf].
|
|
|
|
* **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][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]!
|
|
|
|
[syntax]: syntax.html
|
|
[src]: https://github.com/munificent/wren/tree/master/src
|
|
[nan]: https://github.com/munificent/wren/blob/46c1ba92492e9257aba6418403161072d640cb29/src/wren_value.h#L378-L433
|
|
[perf]: performance.html
|
|
[classes]: classes.html
|
|
[fibers]: fibers.html
|
|
[embedding]: embedding-api.html
|
|
[started]: getting-started.html
|
|
[browser]: http://ppvk.github.io/wren-nest/
|
|
[contribute]: contributing.html
|