Dashlang

A minimalist programming language focused on simplicity and consistency

Documentation

Types

This minimalist language only includes some basic types:

Name	example
Integer	1
Float	1.0
String	"Foo"
Boolean	true
Null	null
Closure	(n) {return n + 1}
Vector	[1, 2, 3]
Tuple	("ok", 3)
Map	{name: "John", age: 25}

Syntax

Declaring a variable

Declaring a variable is as simple as choosing a variable name and assigning a value to it:

name = "Gabriel"

Functions

There is no functions in this language, we use instead closures assigned to variables:

increment = (n) {return n + 1}

We call the function the same way as most of the languages:

n = 0
n = increment(n)

You can also use the pipelining operator to chain function calls:

increment = (n) {
  return n + 1
}

n = 0
n = n
|> increment()
|> increment()
|> increment()

println(n)

Loops and conditionals

Currently, we have if, while and for statements:

while count > 0 {
    ...
}
if count > 0 {
    ...
}
for count = 0; count < 10; count += 1 {
    ...
}

As you can see in the for example, we also have the compound assignment expression operator (+=, -=, etc...)

Features

• Basic types, such as integers, floats, booleans and others
• Standard library with some basic implementations
• Fancy error diagnostics

Running Tests

To run the tests, use the following command

  cargo test --workspace

That will run all the tests from every package

Run Locally

Requirements

• Rust >= 1.76.x

After cloning the repository, you can run the cli package with the following command

  cargo run --package cli "<path-to-file>"

Where path-to-file is the path to the file you want to run. In the examples folder there are already a few examples you can try.

cli is the only package you can actually run, all the other packages are just libraries.

Installation

You can download the cli tool on the releases tab

https://github.com/GabrielBrandao1618/dashlang/releases