Our C/C++ Ruby implementation is based on original Ruby C code, 2.3.4 release and support such core classes and module as:
BasicObject, Object, Module, Class, Integer, Float, Numeric, Bignum, Rational, Complex, Math, String, StringScanner, StringIO, Array, Hash, Struct, Regexp, RegexpError, MatchData, Data, NilClass, TrueClass, FalseClass, Comparable, Enumerable, Enumerator, Converter, Marshal, IO, Dir, Time, Date, Signal, Mutex, Thread, ThreadGroup, Process, Fiber, FiberError, Method, UnboundMethod, Binding, RubyVM, GC, Exception, SystemExit, fatal, SignalException, Interrupt, StandardError, TypeError, ArgumentError, IndexError, KeyError, RangeError, ScriptError, SyntaxError, LoadError, NotImplementedError, NameError, NoMethodError, RuntimeError, SecurityError, NoMemoryError, EncodingError, CompatibilityError, SystemCallError, Errno, ZeroDivisionError, FloatDomainError, IOError, EOFError, ThreadError
We are using Rubinius specs to test Ruby compatibility across different platforms.
Our Ruby implementation is based on Ruby 2.3.4, but there are a few main differences between our implementation of Ruby and core Ruby 2.3.4:
eval is disabled for string evaluation because of limitations with iOS.eval for blocks is functional.