### Home Classes Methods

### In Files

- lib/ffi/enum.rb

### Parent

Object

### Methods

- ::new
- #<<
- #__map_symbol
- #find

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# FFI::Enums

An instance of this class permits to manage {Enum}s. In fact, Enums is a collection of {Enum}s.

### Public Class Methods

new() click to toggle source

@return [nil]

    # File lib/ffi/enum.rb, line 39
    def initialize
      @all_enums = Array.new
      @tagged_enums = Hash.new
      @symbol_map = Hash.new
    end

### Public Instance Methods

<<(enum) click to toggle source

@param [Enum] enum Add an {Enum} to the collection.

    # File lib/ffi/enum.rb, line 47
    def <<(enum)
      @all_enums << enum
      @tagged_enums[enum.tag] = enum unless enum.tag.nil?
      @symbol_map.merge!(enum.symbol_map)
    end

__map_symbol(symbol) click to toggle source

@param symbol a symbol to find in merge symbol maps of all enums. @return a symbol

    # File lib/ffi/enum.rb, line 66
    def __map_symbol(symbol)
      @symbol_map[symbol]
    end

find(query) click to toggle source

@param query enum tag or part of an enum name @return [Enum] Find a {Enum} in collection.

    # File lib/ffi/enum.rb, line 56
    def find(query)
      if @tagged_enums.has_key?(query)
        @tagged_enums[query]
      else
        @all_enums.detect { |enum| enum.symbols.include?(query) }
      end
    end

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