jlox

A Lox interpreter made along with Robert Nystrom's wonderful book "Crafting Interpreters".

Differences from the original version

The interpreter supports features that were suggested to be added in the Challenges sections.

Dividing by zero is an error
```
1 / 0; // Error!
```
Accessing an uninitialized variable is an error
```
var a;
print a; // Error!
```
Not using a local variable is an error
```
{
    var a = "unused";
    // Error!
}
```
C-style comments
```
/* This is a comment. */
```

The ternary operator

print 2 == 3 ? "How?" : "Nice"; // Prints "Nice".

Concatenating strings with other types

print "Hello " + 123; // Prints "Hello 123".

Break statements

// Prints "4".
for (var i = 0; i < 10; i = i + 1) {
    if (i * i == 16) {
        print i;
        break;
    }
}

Anonymous functions

var hello = fun() {
    print "Hello";
};
hello(); // Prints "Hello".

Class methods

class Test {
    class greet() {
        print "Hello!";
    }
}
Test.greet(); // Prints "Hello!".