Objeck

Implementation of programming language Objeck

The only implementation of the language, written by its author. Includes a compiler which translates programs to bytecode, virtual machine with garbage collector and just-in-time compilation and a command-line debugger.

Features

  • Native platform support for Windows, Linux and Mac OS X
  • Support for object-oriented programming (virtual classes, interfaces, enums, functions and methods) and functional programming (high-order functions)
  • Runtime introspection and object serialization
  • Support for polymorphic methods and functions
  • Class library support (math, files, sockets, xml, http, collections and etc.)
  • Automatic memory management (mark and sweep garbage collection)
  • Native runtime JIT support for IA-32 and AMD64 architectures
  • Compiler optimizations (short-circuit evaluation, method inlining, constant folding, strength reduction, instruction simplification)

Links:

Examples:

Hello, World!:

Example for versions Objeck 2.0.3 
bundle Default {
	class Hello {
		function : Main(args : String[]) ~ Nil {
			"Hello, World!"->PrintLine();
		}
	}
}

Factorial:

Example for versions Objeck 2.0.3

This example uses built-in Factorial() function. 

bundle Default {
    class Factorial {
        function : Main(args : String[]) ~ Nil {
            for (i := 0; i <= 16; i += 1;) {
                i->Print();
                "! = "->Print();
                i->Factorial()->PrintLine();
            };
        }
    }
}

Fibonacci numbers:

Example for versions Objeck 2.0.3

This example uses recursive definition of Fibonacci numbers. 

bundle Default {
    class Fib {
        function :  Fibonacci (n: Int) ~ Int {
            if (n<=2) {
                return 1;
            };
            return Fibonacci(n-1) + Fibonacci(n-2);
        }
        function : Main(args : String[]) ~ Nil {
            for (i := 0; i <= 16; i += 1;) {
                Fibonacci(i)->Print();
                ", "->Print();
            };
            "..."->PrintLine();
        }
    }
}

Quadratic equation:

Example for versions Objeck 2.0.3 
use IO;

bundle Default {
    class Quadratic {
        function : Main(args : String[]) ~ Nil {
            A := Console->ReadString()->ToInt();
            if (A=0) {
                "Not a quadratic equation."->PrintLine();
                return;
            };
            B := Console->ReadString()->ToInt();
            C := Console->ReadString()->ToInt();
            D := 1.0*(B*B-4*A*C);
            if (D=0) {
                "x = "->Print();
                (0-B/2.0/A)->PrintLine();
            };
            if (D>0) {
                "x1 = "->Print();
                ((0-B+(D->SquareRoot()))/2.0/A)->PrintLine();
                "x2 = "->Print();
                ((0-B-(D->SquareRoot()))/2.0/A)->PrintLine();
            };
            if (D<0) {
                out := "x1 = (";
                out->Append(0-B/2.0/A);
                out->Append(",");
                out->Append(((D->Abs())->SquareRoot())/2/A);
                out->Append(")");
                out->PrintLine();
                out := "x2 = (";
                out->Append(0-B/2.0/A);
                out->Append(",");
                out->Append(0-((D->Abs())->SquareRoot())/2/A);
                out->Append(")");
                out->PrintLine();
            };
        }
    }
}