Smart Contract Interpreter

A minimalistic interpreter for a simple smart contract written in Solidity. Solidity language documentation here

Features

• Variable Declaration: Declare and initialize variables.
• Arithmetic Operations: Support for basic arithmetic operations.
• Conditional Statements: Basic if-else conditions.
• While Loops: Looping with while conditions.
• Function Calls: Calling predefined functions (e.g., print).

Language Syntax

• Variable Declaration: let <var> = <value>;
• Arithmetic Operation: <var> = <var> + <value>;
• Conditional Statement:

  if <var> == <value> {
      // statements
  } else {
      // statements
  }
  
  let x = 0;
  while x < 5 {
      x = x + 1;
      print(x);
  }
  
  

Build the project:

cargo build

Run the project:

cargo run

Usage

To modify the contract, edit the code variable in the main function in src/main.rs:

fn main() {
    let mut interpreter = Interpreter::new();

    let code = r#"
        let x = 0;
        while x < 5 {
            x = x + 1;
            print(x);
        }
    "#;

    let statements = interpreter.parse(code);
    interpreter.evaluate(statements);
}