Class: GraphQL::Execution::Interpreter::ArgumentsCache

Inherits:
Object
  • Object
show all
Defined in:
lib/graphql/execution/interpreter/arguments_cache.rb

Instance Method Summary collapse

Constructor Details

#initialize(query) ⇒ ArgumentsCache

Returns a new instance of ArgumentsCache.



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# File 'lib/graphql/execution/interpreter/arguments_cache.rb', line 7

def initialize(query)
  @query = query
  @storage = Hash.new do |h, ast_node|
    h[ast_node] = Hash.new do |h2, arg_owner|
      h2[arg_owner] = Hash.new do |h3, parent_object|
        # First, normalize all AST or Ruby values to a plain Ruby hash
        args_hash = prepare_args_hash(ast_node)
        # Then call into the schema to coerce those incoming values
        args = arg_owner.coerce_arguments(parent_object, args_hash, query.context)

        h3[parent_object] = if args.is_a?(GraphQL::Execution::Lazy)
          args.then { |resolved_args|
            # when this promise is resolved, update the cache with the resolved value
            h3[parent_object] = resolved_args
          }
        else
          args
        end
      end
    end
  end
end

Instance Method Details

#fetch(ast_node, argument_owner, parent_object) ⇒ Object 



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# File 'lib/graphql/execution/interpreter/arguments_cache.rb', line 30

def fetch(ast_node, argument_owner, parent_object)
  @storage[ast_node][argument_owner][parent_object]
end