CRUST

This is a hobby project to learn about compilers and language design. I've designed the language to be similar to C and Rust.

Heavily inspired by https://github.com/DoctorWkt/acwj

Features

• [x] Global Variables
• [x] Functions
• [x] Arrays
• [x] Integers (signed and unsigned)
• [x] Strings
• [x] Binary Operations
• [x] Code Generation (GNU Assembly)
• [x] Print to Console (integers & ascii characters)
• [x] If Statements
• [x] While Statements
• [x] For Statements
• [x] Function Parameters
• [x] Function Arguments
• [x] Local Variables (Scopes)
• [x] Function Hoisting
• [ ] Reading from console
• [ ] Dynamic Arrays
• [ ] Structs
• [ ] Unions
• [ ] Enums
• [ ] Break & Continue
• [ ] Variable Initialization
• [ ] Casting
• [ ] Sizeof
• [ ] Static
• [ ] Struct Methods
• [ ] Struct Traits
• [ ] LLVM

How to use

cargo run <input-file> # Compile the crust language to assembly, which will be written to out.s
cc -o bin out.s # Use the GNU C compiler to compile and link the assembly code to an executable file
./bin # Execute the produced binary

Run tests

./runtests.sh

Examples

Some examples of the language

let c: char;
let str: *char;

fn main(): u8 {
  c= '\n'; printint(c);

  for (str= "Hello world\n"; *str != 0; str= str + 1) {
    printchar(*str);
  }
  return 0;
}

let a: u8;
let b: u8[25];

fn main(): u32 {
  b[3]= 12; a= b[3];
  printint(a);
  return 0;
}