module JSON::Ext

This module holds all the modules/classes that implement JSON’s functionality as C extensions.

Public Class Methods

Source

# File lib/json/ext.rb, line 80
def on_duplicate_key(hash, as_json)
  set = {}
  hash.each_key do |key|
    key = coerce_key(key, as_json)
    if set[key]
      raise GeneratorError.new("detected duplicate key #{key.inspect}", key)
    else
      set[key] = true
    end
  end
end