https://github.com/gsingh93/lang

An imperative programming language written in Rust
https://github.com/gsingh93/lang

Last synced: 8 days ago
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An imperative programming language written in Rust

• Host: GitHub
• URL: https://github.com/gsingh93/lang
• Owner: gsingh93
• Created: 2015-03-31T04:08:37.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-05-31T04:03:09.000Z (over 9 years ago)
• Last Synced: 2024-05-02T01:29:32.962Z (7 months ago)
• Language: Rust
• Size: 227 KB
• Stars: 7
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# lang (to be renamed)

`lang` is a C-like programming language designed for the purpose of learning about compiler construction. Examples can be found in the `examples` folder.

## Usage

```

$ cargo run -- -h

Usage: target/debug/lang [options]

Options:

    -h --help           print this help menu

    -t --type TYPE      output type (llvm (default), asm, or obj)

    -o --output FILE    output file name

```

Note that the compiler doesn't automatically link object files (yet), so after generating an object file with the `-t` flag, you can link by running `gcc` on the object file.

## Features

`lang` supports basic variable assignment, function calls, conditionals, loops, arithmetic, and relational operations. The three main types are `int` (a signed 32-bit integer), `string` (a null terminated string), and `bool`. `lang` also supports calling C functions as long as the necessary types are supported.

### In progress features

- Semantic analysis currently reports errors without reporting the location of the error, this will be fixed

- Add floating point and unsigned integer types of different widths

- Allow function definitions in any order

- Scope (currently everything inside a function is in the same scope)

- Arrays

- For loops (only while loops are supported at the moment)

- Allow parenthesis in expressions

### Long term features

- Dynamic memory

- Optional garbage collections

- Algebraic data types and pattern matching