Yona is a minimalistic, (strongly) dynamically typed, parallel and non-blocking, polyglot, strict, functional programming language, with ML-like syntax, for the GraalVM virtual machine (VM). Yona puts a strong focus on code readability.
Yona abstract users from dealing with non-blocking asynchronous computations and parallelism. While these features are commonly available in other languages nowadays, they are almost exclusively non-native solutions that come in forms of libraries or frameworks and are difficult to integrate with existing codebases. On top of that, dealing with these additional libraries requires a conscious effort of the programmer to choose/learn/integrate these libraries into their mindset when writing new code.
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Goals & Priorities¶
- Excellent readability - simple syntax, few keywords, virtually no boilerplate.
- Few types of expressions -
import, function(function does not need a keyword, it is defined by a name and arguments - patterns),
- Simple module system - ability to expose functions for use in other modules, and ability to import them from other modules. Modules are first level values and can be created dynamically.
- Single expression principle - program is always one expression - this enables simpler evaluation and syntax, allows writing simple scripts as well as complex applications.
- Powerful and efficient built-in immutable data structures with full support for pattern matching, including Sequence, Dictionary and Set.
- Custom data types representable as records.
- Built-in runtime level non-blocking asynchronous IO.
- Simple concurrency, built-into runtime, no need for any abstractions such as Futures, Channels or Actors.
- Advanced concurrency provided by built-in Software Transactional Memory (STM) module.
- Polyglot language - interoperability with other languages via GraalVM.
- Powerful resource management - automatically manage resources using built-in context manager infrastructure.
Read more about the philosophy behind Yona here.
The Yona language is currently in active development. The release plan is:
- May 25th 2020. The focus of this release was:
- stabilized syntax, semantics, and runtime
- automated the release process
- establish website and documentation
- spread the word and allow users to "play" with the language and the interpreter
- collect some feedback from interested users
- 2020/Q3-Q4. Focus of this release is:
- final - 2021. Focus of this release is:
- stabilize standard library
- focus on tooling, such as package management, editor/IDE support
- provide a high-quality REPL
See the release notes for more details.