https://github.com/helje5/wren-swift

The wren scripting language as a Swift package, w/ some Swift API wrappers
https://github.com/helje5/wren-swift

Last synced: about 1 month ago
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The wren scripting language as a Swift package, w/ some Swift API wrappers

• Host: GitHub
• URL: https://github.com/helje5/wren-swift
• Owner: helje5
• License: apache-2.0
• Created: 2021-01-18T23:20:25.000Z (about 4 years ago)
• Default Branch: develop
• Last Pushed: 2021-01-19T20:41:40.000Z (about 4 years ago)
• Last Synced: 2024-12-04T01:36:44.658Z (about 2 months ago)
• Language: C
• Size: 130 KB
• Stars: 4
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# swift-wren

A Swift package and wrapper for the [wren](https://wren.io) scripting language.

There is a good [QA](https://wren.io/qa.html) on wren. It's a very small embeddable

language similar to Lua, but w/o the weirdness.

A major thing missing in wren is 

[reentrancy](https://github.com/wren-lang/wren/issues/487)

with the host environment.

Another issue is that host functions do not get any function environment,

i.e. no function specific userdata pointer, or other means which would allow

a trampoline.

PRs are still welcome, and we'll see where wren is going in the future.

This SwiftPM package embeds Wren itself, i.e. it contains the amalgation in a vendored

branch.

### What does it look like?

The example from the [QA](https://wren.io/qa.html):

```wren

class Account {

  construct new(balance) { _balance = balance }

  withdraw(amount) { _balance = _balance - amount }

}

var account = Account.new(1000)

account.withdraw(100)

```

### What does the Swift Wrapper look like

Hello world:

```swift

let vm = WrenVM()

try vm.interpret(

  """

  System.print("I'm running in a VM!")

  """

)

```

Using dynamicCallable:

```swift

let vm = WrenVM()

try vm.main.System.print("Hello World!")

```

### Links

- [wren](https://wren.io)

  - [QA](https://wren.io/qa.html)

### Who

**swift-wren** is brought to you by

the

[Always Right Institute](https://www.alwaysrightinstitute.com)

and

[ZeeZide](http://zeezide.de).

We like 

[feedback](https://twitter.com/ar_institute), 

GitHub stars, 

cool [contract work](http://zeezide.com/en/services/services.html),

presumably any form of praise you can think of.