class SyntaxTree::YARV::GetGlobal

def ==(other)
  other.is_a?(GetGlobal) && other.name == name
end

def call(vm)
  # Evaluating the name of the global variable because there isn't a
  # reflection API for global variables.
  vm.push(eval(name.to_s, binding, __FILE__, __LINE__))
end

def deconstruct_keys(_keys)
  { name: name }
end

def disasm(fmt)
  fmt.instruction("getglobal", [fmt.object(name)])
end

def initialize(name)
  @name = name
end

def length
  2
end

def pushes
  1
end

def to_a(_iseq)
  [:getglobal, name]
end