1 files changed, 53 insertions, 0 deletions
diff --git a/lib/rubygems/dependency_resolver/index_specification.rb b/lib/rubygems/dependency_resolver/index_specification.rb
new file mode 100644
index 0000000000..371018ba44
--- /dev/null
+++ b/lib/rubygems/dependency_resolver/index_specification.rb
@@ -0,0 +1,53 @@
+##
+# Represents a possible Specification object returned
+# from IndexSet. Used to delay needed to download full
+# Specification objects when only the +name+ and +version+
+# are needed.
+
+class Gem::DependencyResolver::IndexSpecification
+
+  attr_reader :name
+
+  attr_reader :source
+
+  attr_reader :version
+
+  def initialize set, name, version, source, plat
+    @set = set
+    @name = name
+    @version = version
+    @source = source
+    @platform = plat
+
+    @spec = nil
+  end
+
+  def dependencies
+    spec.dependencies
+  end
+
+  def full_name
+    "#{@name}-#{@version}"
+  end
+
+  def inspect # :nodoc:
+    '#<%s %s source %s>' % [self.class, full_name, @source]
+  end
+
+  def pretty_print q # :nodoc:
+    q.group 2, '[Index specification', ']' do
+      q.breakable
+      q.text full_name
+
+      q.breakable
+      q.text ' source '
+      q.pp @source
+    end
+  end
+
+  def spec
+    @spec ||= @set.load_spec(@name, @version, @source)
+  end
+
+end
+