Contents

# frozen_string_literal: true

module RbsActivesupport
  module Types
    # @rbs!
    #   def self.guess_type: (untyped obj) -> String

    # @rbs obj: untyped
    def guess_type(obj) #: String # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
      case obj
      when nil
        "nil"
      when Integer, Float, Symbol, String
        obj.class.name or raise
      when true, false
        "bool"
      when Array
        return "Array[untyped]" if obj.empty?

        items = obj.map { |e| guess_type(e) }.uniq
        if items.include?("untyped")
          "Array[untyped]"
        else
          "Array[#{items.join(" | ")}]"
        end
      when Hash
        return "Hash[untyped, untyped]" if obj.empty?

        keys = obj.keys.map { |e| guess_type(e) }.uniq
        values = obj.values.map { |e| guess_type(e) }.uniq
        key_type = keys.include?("untyped") ? "untyped" : keys.join(" | ")
        value_type = values.include?("untyped") ? "untyped" : values.join(" | ")
        "Hash[#{key_type}, #{value_type}]"
      else
        "untyped"
      end
    end
    module_function :guess_type
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
rbs_activesupport-1.4.3	lib/rbs_activesupport/types.rb
rbs_activesupport-1.4.2	lib/rbs_activesupport/types.rb
rbs_activesupport-1.4.1	lib/rbs_activesupport/types.rb
rbs_activesupport-1.4.0	lib/rbs_activesupport/types.rb
rbs_activesupport-1.3.0	lib/rbs_activesupport/types.rb