Linter doesn't validate type of summary and description

[kylef]

I'd expect the following changes would fix the problem, but for some reason don't work. Looks like the type checking may be broken.

diff --git a/lib/cocoapods-core/specification/dsl.rb b/lib/cocoapods-core/specification/dsl.rb
index d6e398e..89fed94 100644
--- a/lib/cocoapods-core/specification/dsl.rb
+++ b/lib/cocoapods-core/specification/dsl.rb
@@ -301,6 +301,7 @@ module Pod
       #           A short description of the Pod.
       #
       root_attribute :summary,
+                     :types => String,
                      :required => true

       #------------------#
@@ -322,7 +323,8 @@ module Pod
       #   @param  [String] description
       #           A longer description of the Pod.
       #
-      root_attribute :description
+      root_attribute :description,
+                     :types => String

       #------------------#

@@ -362,7 +364,8 @@ module Pod
       #   @param  [String] documentation_url
       #           The link of the web documentation of the Pod.
       #
-      root_attribute :documentation_url
+      root_attribute :documentation_url,
+                     :types => String

       #------------------#

@@ -776,7 +779,8 @@ module Pod
       #           The path to the prefix header file.
       #
       attribute :prefix_header_file,
-                :inherited => true
+                :inherited => true,
+                :types => String

       #------------------#

From CocoaPods/CocoaPods#3134

[segiddins]

String is the default type, but I'm working on a fix -- only question: should this happen on validation or when creating the Specification from the DSL, or both?

[segiddins]

I'm working on moving the existing (unused) attribute validation logic into the linter.