Memoize some #hash calls

bundler/lib/bundler/lazy_specification.rb

@@ -35,7 +35,7 @@ def eql?(other)
     end
 
     def hash
-      identifier.hash
+      @__hash ||= identifier.hash
     end
 
     ##

bundler/lib/bundler/plugin/api/source.rb

@@ -221,7 +221,7 @@ def ==(other)
         # docstring for `==` method, i.e. two methods equal by above comparison
         # should have same hash.
         def hash
-          [self.class, uri].hash
+          @__hash = [self.class, uri].hash
         end
 
         # A helper method, not necessary if not used internally.

bundler/lib/bundler/resolver/spec_group.rb

@@ -67,7 +67,7 @@ def eql?(other)
       end
 
       def hash
-        name.hash ^ version.hash ^ sorted_activated_platforms.hash ^ source.hash
+        @__hash ||= name.hash ^ version.hash ^ sorted_activated_platforms.hash ^ source.hash
       end
 
       protected

bundler/lib/bundler/rubygems_ext.rb

@@ -177,10 +177,12 @@ def _with_sorted_requirements
     class Requirement
       module CorrectHashForLambdaOperator
         def hash
-          if requirements.any? {|r| r.first == "~>" }
-            requirements.map {|r| r.first == "~>" ? [r[0], r[1].to_s] : r }.sort.hash
-          else
-            super
+          @__hash ||= begin
+            if requirements.any? {|r| r.first == "~>" }
+              requirements.map {|r| r.first == "~>" ? [r[0], r[1].to_s] : r }.sort.hash
+            else
+              super
+            end
           end
         end
       end

bundler/lib/bundler/source/git.rb

@@ -47,7 +47,7 @@ def to_lock
       end
 
       def hash
-        [self.class, uri, ref, branch, name, version, glob, submodules].hash
+        @__hash ||= [self.class, uri, ref, branch, name, version, glob, submodules].hash
       end
 
       def eql?(other)

bundler/lib/bundler/source/metadata.rb

@@ -52,7 +52,7 @@ def ==(other)
       alias_method :eql?, :==
 
       def hash
-        self.class.hash
+        @__hash ||= self.class.hash
       end
 
       def version_message(spec)

bundler/lib/bundler/source/path.rb

@@ -66,7 +66,7 @@ def to_s
       end
 
       def hash
-        [self.class, expanded_path, version].hash
+        @__hash ||= [self.class, expanded_path, version].hash
       end
 
       def eql?(other)

bundler/lib/bundler/source/rubygems.rb

@@ -56,7 +56,7 @@ def cached!
       end
 
       def hash
-        @remotes.hash
+        @__hash ||= @remotes.hash
       end
 
       def eql?(other)

bundler/lib/bundler/vendor/molinillo/lib/molinillo/dependency_graph/vertex.rb

@@ -123,7 +123,7 @@ def shallow_eql?(other)
 
       # @return [Fixnum] a hash for the vertex based upon its {#name}
       def hash
-        name.hash
+        @__hash ||= name.hash
       end
 
       # Is there a path from `self` to `other` following edges in the

bundler/lib/bundler/vendor/uri/lib/uri/generic.rb

@@ -1379,7 +1379,7 @@ def ==(oth)
     end
 
     def hash
-      self.component_ary.hash
+      @__hash ||= self.component_ary.hash
     end
 
     def eql?(oth)

lib/rubygems/dependency.rb

@@ -68,7 +68,7 @@ def initialize(name, *requirements)
   # and +requirement+.
 
   def hash # :nodoc:
-    name.hash ^ type.hash ^ requirement.hash
+    @__hash ||= name.hash ^ type.hash ^ requirement.hash
   end
 
   def inspect # :nodoc:

lib/rubygems/name_tuple.rb

@@ -115,6 +115,6 @@ def ==(other)
   alias_method :eql?, :==
 
   def hash
-    to_a.hash
+    @__hash ||= to_a.hash
   end
 end

lib/rubygems/platform.rb

@@ -145,7 +145,7 @@ def ==(other)
   alias :eql? :==
 
   def hash # :nodoc:
-    to_a.hash
+    @__hash ||= to_a.hash
   end
 
   ##

lib/rubygems/requirement.rb

@@ -190,7 +190,7 @@ def as_list # :nodoc:
   end
 
   def hash # :nodoc:
-    requirements.map {|r| r.first == "~>" ? [r[0], r[1].to_s] : r }.sort.hash
+    @__hash ||= requirements.map {|r| r.first == "~>" ? [r[0], r[1].to_s] : r }.sort.hash
   end
 
   def marshal_dump # :nodoc:

lib/rubygems/resolver/activation_request.rb

@@ -39,7 +39,7 @@ def eql?(other)
   end
 
   def hash
-    @spec.hash
+    @__hash ||= @spec.hash
   end
 
   ##

lib/rubygems/resolver/api_specification.rb

@@ -48,7 +48,7 @@ def ==(other) # :nodoc:
   end
 
   def hash
-    @set.hash ^ @name.hash ^ @version.hash ^ @platform.hash
+    @__hash ||= @set.hash ^ @name.hash ^ @version.hash ^ @platform.hash
   end
 
   def fetch_development_dependencies # :nodoc:

lib/rubygems/resolver/index_specification.rb

@@ -62,7 +62,7 @@ def ==(other)
   end
 
   def hash
-    @name.hash ^ @version.hash ^ @platform.hash
+    @__hash ||= @name.hash ^ @version.hash ^ @platform.hash
   end
 
   def inspect # :nodoc:

lib/rubygems/resolver/molinillo/lib/molinillo/dependency_graph/vertex.rb

@@ -123,7 +123,7 @@ def shallow_eql?(other)
 
       # @return [Fixnum] a hash for the vertex based upon its {#name}
       def hash
-        name.hash
+        @__hash ||= name.hash
       end
 
       # Is there a path from `self` to `other` following edges in the

lib/rubygems/source.rb

@@ -101,7 +101,7 @@ def dependency_resolver_set # :nodoc:
   end
 
   def hash # :nodoc:
-    @uri.hash
+    @__hash ||= @uri.hash
   end
 
   ##

lib/rubygems/source/lock.rb

@@ -34,7 +34,7 @@ def ==(other) # :nodoc:
   end
 
   def hash # :nodoc:
-    @wrapped.hash ^ 3
+    @__hash ||= @wrapped.hash ^ 3
   end
 
   ##

lib/rubygems/specification.rb

@@ -1944,7 +1944,7 @@ def has_unit_tests? # :nodoc:
   # :startdoc:
 
   def hash # :nodoc:
-    name.hash ^ version.hash
+    @__hash ||= name.hash ^ version.hash
   end
 
   def init_with(coder) # :nodoc:

lib/rubygems/version.rb

@@ -250,7 +250,7 @@ def eql?(other)
   end
 
   def hash # :nodoc:
-    canonical_segments.hash
+    @__hash ||= canonical_segments.hash
   end
 
   def init_with(coder) # :nodoc: