ALOX-CC

LOX converted to C++ and refactored.

Additions:

• break, continue.
• Unicode strings and identifiers.
• ++, --.
• getc(), chr(ch), exit(status), print_error(message).
• I/O read, write, stderr.
• lambda functions. lambda () { }
• Lists [1,2,3], Maps, Arrays, Sets.
• Object class, literal initialisers {s: value....};
• Conditional expressions: print x == 5 ? "5" : nil;
• file inclusion include.
• module system import, export. Namespaces.
• Exceptions.

Modifications:

• more than 255 constants in a function. Re-using constants. Opcodes ZERO, ONE.
• Opcodes ZERO, ONE for number constants.
• Change from realloc to new/delete for Objects.
• Move init() functions to constructors, default initialisers.
• NOT_EQUAL, NOT_LESS, NOT_GREATER.
• moved from char* to std::string.
• separate Parser and Compiler with an AST.

Book modifications:

• More efficient line number storage (Chapter 14, Q.1)
• Conditional expressions: print x == 5 ? "5" : nil; (Chapter 17 Q.3)
• Generalised Table<Value, Value> (Chapter 20 Q.1).
• case statement (Chapter 23 Q.1)
• continue, break. Check for popping locals off the stack. (Chapter 23 Q.2)
• Speed up with ip in VM. (Chapter 24 Q.1)
• Validate native function calls. (Chapter 24 Q.2)
• Optimise Obj fields in all objects (Chapter 26 Q.1)
• Check for fields in objects (Chapter 27 Q.1)
• Set init method into the class object (Chapter 28 Q.1)