Parent

Methods

Raindrops::Struct

This is a wrapper around Raindrops objects much like the core Ruby Struct can be seen as a wrapper around the core Array class. It’s usage is similar to the core Struct class, except its fields may only be used to house unsigned long integers.

  class Foo < Raindrops::Struct.new(:readers, :writers)
  end

  foo = Foo.new 0, 0

  foo.incr_writers    -> 1
  foo.incr_readers    -> 1

Public Class Methods

new(*members) click to toggle source

returns a new class derived from Raindrops::Struct and supporting the given members as fields, just like Struct.new in core Ruby.

    # File lib/raindrops/struct.rb, line 20
20:   def self.new(*members)
21:     members = members.map { |x| x.to_sym }.freeze
22:     str = def initialize(*values)  (MEMBERS.size >= values.size) or raise ArgumentError, "too many arguments"  @raindrops = Raindrops.new(MEMBERS.size)  values.each_with_index { |val,i| @raindrops[i] = values[i] }enddef initialize_copy(src)  @raindrops = src.instance_variable_get(:@raindrops).dupenddef []=(index, value)  @raindrops[index] = valueenddef [](index)  @raindrops[index]enddef to_hash  ary = @raindrops.to_ary  rv = {}  MEMBERS.each_with_index { |member, i| rv[member] = ary[i] }  rvend
23: 
24:     members.each_with_index do |member, i|
25:       str << "def incr_#{member}; @raindrops.incr(#{i}); end; "               "def decr_#{member}; @raindrops.decr(#{i}); end; "               "def #{member}; @raindrops[#{i}]; end; "               "def #{member}=(val); @raindrops[#{i}] = val; end; "
26:     end
27: 
28:     klass = Class.new
29:     klass.const_set(:MEMBERS, members)
30:     klass.class_eval(str)
31:     klass
32:   end

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