[Resolver] Extract LazySpecification code into resolver/lazy_specification.rb

lib/cocoapods/resolver.rb

-module Pod
-  class Specification::Set
-    class LazySpecification < BasicObject
-      attr_reader :name, :version, :source
-
-      def initialize(name, version, source)
-        @name = name
-        @version = version
-        @source = source
-      end
-
-      def method_missing(method, *args, &block)
-        specification.send(method, *args, &block)
-      end
-
-      def subspec_by_name(name = nil)
-        if !name || name == self.name
-          self
-        else
-          specification.subspec_by_name(name)
-        end
-      end
-
-      def specification
-        @specification ||= source.specification(name, version)
-      end
-    end
-
-    def all_specifications
-      @all_specifications ||= versions_by_source.map do |source, versions|
-        versions.map { |version| LazySpecification.new(name, version, source) }
-      end.flatten
-    end
-  end
-
-  class Specification::Set::External
-    def all_specifications
-      [specification]
-    end
-  end
+require 'resolver'
+require 'cocoapods/resolver/lazy_specification'
 
+module Pod
   # The resolver is responsible of generating a list of specifications grouped
   # by target for a given Podfile.
   #
   class Resolver
-    require 'resolver'
     include ::Resolver::UI
     include ::Resolver::SpecificationProvider
 

lib/cocoapods/resolver/lazy_specification.rb

+module Pod
+  class Specification::Set
+    class LazySpecification < BasicObject
+      attr_reader :name, :version, :source
+
+      def initialize(name, version, source)
+        @name = name
+        @version = version
+        @source = source
+      end
+
+      def method_missing(method, *args, &block)
+        specification.send(method, *args, &block)
+      end
+
+      def subspec_by_name(name = nil)
+        if !name || name == self.name
+          self
+        else
+          specification.subspec_by_name(name)
+        end
+      end
+
+      def specification
+        @specification ||= source.specification(name, version)
+      end
+    end
+
+    class External
+      def all_specifications
+        [specification]
+      end
+    end
+
+    def all_specifications
+      @all_specifications ||= versions_by_source.map do |source, versions|
+        versions.map { |version| LazySpecification.new(name, version, source) }
+      end.flatten
+    end
+  end
+end