module RubyVM::RJIT::Type

# File ruby_vm/rjit/type.rb, line 145
def from(val)
  if C::SPECIAL_CONST_P(val)
    if fixnum?(val)
      Type::Fixnum
    elsif val.nil?
      Type::Nil
    elsif val == true
      Type::True
    elsif val == false
      Type::False
    elsif static_symbol?(val)
      Type::ImmSymbol
    elsif flonum?(val)
      Type::Flonum
    else
      raise "Illegal value: #{val.inspect}"
    end
  else
    val_class = C.to_value(C.rb_class_of(val))
    if val_class == C.rb_cString && C.rb_obj_frozen_p(val)
      return Type::CString
    end
    if C.to_value(val) == C.rb_block_param_proxy
      return Type::BlockParamProxy
    end
    case C::BUILTIN_TYPE(val)
    in C::RUBY_T_ARRAY
      Type::TArray
    in C::RUBY_T_HASH
      Type::Hash
    in C::RUBY_T_STRING
      Type::TString
    else
      Type::UnknownHeap
    end
  end
end

# File ruby_vm/rjit/type.rb, line 185
def fixnum?(obj)
  (C.to_value(obj) & C::RUBY_FIXNUM_FLAG) == C::RUBY_FIXNUM_FLAG
end

# File ruby_vm/rjit/type.rb, line 189
def flonum?(obj)
  (C.to_value(obj) & C::RUBY_FLONUM_MASK) == C::RUBY_FLONUM_FLAG
end

# File ruby_vm/rjit/type.rb, line 193
def static_symbol?(obj)
  (C.to_value(obj) & 0xff) == C::RUBY_SYMBOL_FLAG
end