qualiabyte/creamscript

A CoffeeScript-like language that compiles to C++

CreamScript

A CoffeeScript-like language that compiles to C++.

Examples

Hello World

CreamScript

import stdio

using namespace std

int main() ->
  cout << "Hello world!" << endl
  return 1

Compiled C++

#include <stdio>

using namespace std;

int main()
{
  cout << "Hello world!" << endl;
  return 1;
}

Fibonacci

CreamScript

int fibonacci(int n) ->
  if n > 1
    return fibonacci(n - 1) + fibonacci(n - 2)
  else
    return n

int main() ->
  cout << "Fibonacci(10): " << fibonacci(10) << endl

Compiled C++

int fibonacci(int n) {
  if (n > 1)
    return fibonacci(n - 1) + fibonacci(n - 2);
  else
    return n;
}

int main()
{
  cout << "Fibonacci(10): " << fibonacci(10) << endl;
}

Lambdas

CreamScript

sum = (double a, double b) ->
  return a + b

sum(41, 1)

Compiled C++

auto sum = [] (double a, double b)
{
  return a + b;
}

sum(41, 1);

Features

Language

• ✓ Identifiers
• ✓ Variables
  • ✗ Definition
  • ✗ Assignment
• ✗ Keywords
• ✗ Types
• ✓ Literals
  • ✓ Numbers
  • ✓ Strings
• ✓ Blocks
  • ✓ Single line
  • ✗ Multi-line
• ✓ Statements
  • ✗ If Else
  • ✗ For
  • ✗ While
  • ✓ Return
• ✓ Expressions
  • ✓ Expression Groups
• ✓ Operations
  • ✓ Arithmetic
    • ✓ Add, Subtract, Multiply, Divide
• ✗ Functions
  • ✓ Definition
  • ✓ Lambdas
  • ✓ Parameter Lists
  • ✗ Calls

Compiler

• ✓ Token
• ✓ Scanner
• ✓ Rewriter
• ✓ Lexer
• ✓ Parser
• ✓ Back end
  • ✓ C++ Output