Progress

The goal of RubyFlux is to support as much of Ruby syntax and core class behavior as possible. Since this is a large goal, this page serves to enumerate what has been implemented and what remains.

• Syntax
  • Literals
    • Strings compile to RString, but no interpolation yet
    • Fixnums (Integers) compile as RFixnum
    • Floats compile as RFloat
    • Arrays compile as RArray
    • nil is a singleton instance of RObject
    • true and false are singleton instances of RBoolean
  • Method calls
    • Specific-arity only (no hash or splat args)
    • No block/closure support
    • No super invocations yet
  • Classes
    • Classes emit as their own Java classes
    • No modules yet
    • No metaclasses (may be needed for proper class method overriding)
  • Method definition
    • Specific-arity only (no optional, rest, or block args)
    • No class-level (static) methods yet
  • Constants
    • Emitted and accessed as static final values on current class
  • Flow control
    • "if" and "while" compile to appropriate Java code
    • "if" statements can be treated as expressions as in Ruby
    • "return" compiles as a Java return
    • No "unless" or flip-flop yet
  • Variables
    • Local variables compile to Java locals
    • No instance variables yet
    • No class variables yet
  • Boolean logic
    • "or" and "and" forms work (||, "or", &&, "and")
    • No not (boolean negation) yet
• Core Classes
  • Object/Kernel (RObject/RKernel)
    • RObject is entirely generated code
    • Kernel supports puts, print, ==, to_i, to_int, to_f, to_s, and method_missing
  • Fixnum (RFixnum)
    • to_s, to_i, +, -, *, /, **, <=>, <, >, <=, >=
    • No overflow into Bignum
  • Float (RFloat)
    • to_s, to_f, +, -, *, /, **, <=>, <, >, <=, >=
  • String (RString)
    • to_s, %
  • Array (RArray)
    • <<, [], []=, size, clear
    • Only Fixnum indexing supported for now
  • Time (RTime)
    • to_s, to_int, to_f, -
    • Only supports construction via Time.new