Class: Rubyzen::Collections::BaseCollection

Inherits:

Array

• Object
• Array
• Rubyzen::Collections::BaseCollection

Defined in:

lib/rubyzen/collections/base_collection.rb

Overview

Base collection class for all Rubyzen collections. Extends Array and replaces select/reject with a single filter method that preserves the collection subclass type.

Examples:

Filtering a collection with a block

controllers.filter { |c| c.name.end_with?('Controller') }

Direct Known Subclasses

AssignmentsCollection, AttributesCollection, BlocksCollection, CallSiteCollection, ClassesCollection, ConstantsCollection, DeclarationCollection, ExpressionsCollection, FileCollection, MacrosCollection, MethodsCollection, ModulesCollection, ParametersCollection, RaisesCollection, RequiresCollection, RescuesCollection, ReturnsCollection

Instance Method Summary

• #filter {|element| ... } ⇒ BaseCollection, Enumerator

  Filters elements by the given block, returning a new collection of the same type.

Instance Method Details

#filter {|element| ... } ⇒ BaseCollection, Enumerator

Filters elements by the given block, returning a new collection of the same type.

Yields:

• (element) —

  block that returns truthy to keep the element

Returns:

• (BaseCollection) —

  a new collection containing only matching elements

• (Enumerator) —

  if no block is given

# File 'lib/rubyzen/collections/base_collection.rb', line 19

def filter
  return enum_for(:filter) unless block_given?

  result = self.class.new
  each do |elem|
    result << elem if yield(elem)
  end

  result
end