Class: Solargraph::Parser::ParserGem::NodeProcessors::MasgnNode

Inherits:
NodeProcessor::Base show all
Includes:
Solargraph::Parser::ParserGem::NodeMethods
Defined in:
lib/solargraph/parser/parser_gem/node_processors/masgn_node.rb

Constant Summary

Constants included from Solargraph::Parser::ParserGem::NodeMethods

Solargraph::Parser::ParserGem::NodeMethods::NIL_NODE

Instance Attribute Summary

Attributes inherited from NodeProcessor::Base

#locals, #node, #pins, #region

Instance Method Summary collapse

Methods included from Solargraph::Parser::ParserGem::NodeMethods

any_splatted_call?, call_nodes_from, const_nodes_from, convert_hash, drill_signature, find_recipient_node, get_node_end_position, get_node_start_position, infer_literal_node_type, pack_name, repaired_find_recipient_node, returns_from_method_body, splatted_call?, splatted_hash?, unpack_name, value_position_nodes_only

Methods inherited from NodeProcessor::Base

#initialize

Constructor Details

This class inherits a constructor from Solargraph::Parser::NodeProcessor::Base

Instance Method Details

#process ⇒ void

This method returns an undefined value.



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# File 'lib/solargraph/parser/parser_gem/node_processors/masgn_node.rb', line 11

def process
  # Example:
  #
  # s(:masgn,
  #   s(:mlhs,
  #     s(:send,
  #       s(:send, nil, :a), :b=),
  #     s(:lvasgn, :b),
  #     s(:ivasgn, :@c)),
  #   s(:array,
  #     s(:int, 1),
  #     s(:int, 2),
  #     s(:int, 3)))
  masgn = node
  # @type [Parser::AST::Node]
  mlhs = masgn.children.fetch(0)
  # @type [Array<Parser::AST::Node>]
  lhs_arr = mlhs.children
  # @type [Parser::AST::Node]
  mass_rhs = node.children.fetch(1)

  # Get pins created for the mlhs node
  process_children

  lhs_arr.each_with_index do |lhs, i|
    location = get_node_location(lhs)
    pin = if lhs.type == :lvasgn
            # lvasgn is a local variable
            locals.find { |l| l.location == location }
          else
            # e.g., ivasgn is an instance variable, etc
            pins.find { |iv| iv.location == location && iv.is_a?(Pin::BaseVariable) }
          end
    # @todo in line below, nothing in typechecking alerts
    #   when a non-existant method is called on 'l'
    if pin.nil?
      Solargraph.logger.debug do
        "Could not find local for masgn= value in location #{location.inspect} in #{lhs_arr} - masgn = #{masgn}, lhs.type = #{lhs.type}"
      end
      next
    end
    pin.mass_assignment = [mass_rhs, i]
  end
end