Prism::Pattern#scan

scan(root) { |node| ... }

# File tmp/rubies/ruby-3.3.0/lib/prism/pattern.rb, line 79
def scan(root)
  return to_enum(__method__, root) unless block_given?

  @compiled ||= compile
  queue = [root]

  while (node = queue.shift)
    yield node if @compiled.call(node)
    queue.concat(node.compact_child_nodes)
  end
end

Scan the given node and all of its children for nodes that match the pattern. If a block is given, it will be called with each node that matches the pattern. If no block is given, an enumerator will be returned that will yield each node that matches the pattern.

See also #compile_symbol_node #compile_string_node also in 4.0 · 3.4

‹ prev#compile_symbol_node