class Solargraph::Pin::LocalVariable

def initialize assignment: nil, presence: nil, **splat
  super(**splat)
  @assignment = assignment
  @presence = presence
end

def match_named_closure needle, haystack
  return true if needle == haystack || haystack.is_a?(Pin::Block)
  cursor = haystack
  until cursor.nil?
    return true if needle.path == cursor.path
    return false if cursor.path && !cursor.path.empty?
    cursor = cursor.closure
  end
  false
end

def match_tags tag1, tag2
  # @todo This is an unfortunate hack made necessary by a discrepancy in

  #   how tags indicate the root namespace. The long-term solution is to

  #   standardize it, whether it's `Class<>`, an empty string, or

  #   something else.

  tag1 == tag2 ||
    (['', 'Class<>'].include?(tag1) && ['', 'Class<>'].include?(tag2))
end

def to_rbs
  (name || '(anon)') + ' ' + (return_type&.to_rbs || 'untyped')
end

def try_merge! pin
  return false unless super
  @presence = pin.presence
  true
end

def visible_at?(other_closure, other_loc)
  location.filename == other_loc.filename &&
    presence.include?(other_loc.range.start) &&
    match_named_closure(other_closure, closure)
end