class GraphQL::Language::Visitor::NodeVisitor

Access {NodeVisitor}s via {GraphQL::Language::Visitor#[]}
Collect ‘enter` and `leave` hooks for classes in {GraphQL::Language::Nodes}

def <<(hook)

Parameters:
  • hook (Proc) -- A hook to add 
def <<(hook)
  enter << hook
end

def initialize 

def initialize
  @enter = []
  @leave = []
end