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

• Global Variables
• Functions
• Arrays
• Integers (signed and unsigned)
• Strings
• Binary Operations
• Code Generation (GNU Assembly)
• Print to Console (integers & ascii characters)
• If Statements
• While Statements
• For Statements
• Function Parameters
• Function Arguments
• Local Variables (Scopes)
• 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 -no-pie -z noexecstack -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;
}