Fix missing new_ostruct_member in Ruby 2.7

.travis.yml

@@ -5,6 +5,7 @@ rvm:
   - 2.4.5
   - 2.5.3
   - 2.6.0
+  - 2.7.0
   - truffleruby
 gemfile:
   - gemfiles/rails_4.2.gemfile
@@ -14,7 +15,10 @@ gemfile:
   - gemfiles/sinatra.gemfile
 matrix:
   exclude:
-    # truffleruby does not seem to work with Rails
+    # Bundler 2.x coming with Ruby 2.7 does not work well with rails 4.2
+    - rvm: 2.7.0
+      gemfile: gemfiles/rails_4.2.gemfile
+    # TruffleRuby does not seem to work with Rails
     - rvm: truffleruby
       gemfile: gemfiles/rails_4.2.gemfile
     - rvm: truffleruby

CHANGELOG.md

@@ -7,6 +7,10 @@
 * Get rid of unused Rails Engine class definition ([#247](https://github.com/railsconfig/config/pull/247))
 * Require dry-validation only when schema is specified ([#253](https://github.com/railsconfig/config/pull/253))
 
+### Bug fixes
+
+* Fix missing new_ostruct_member in Ruby 2.7 ([#255](https://github.com/railsconfig/config/pull/255))
+
 ### Changes
 
 * Use sprockets 3.x when running unit tests for Rails 4.2 ([#256](https://github.com/railsconfig/config/pull/256))

lib/config/options.rb

@@ -201,15 +201,14 @@ def __convert(h) #:nodoc:
 
       h.each do |k, v|
         k = k.to_s if !k.respond_to?(:to_sym) && k.respond_to?(:to_s)
-        s.new_ostruct_member(k)
 
         if v.is_a?(Hash)
           v = v["type"] == "hash" ? v["contents"] : __convert(v)
         elsif v.is_a?(Array)
           v = v.collect { |e| e.instance_of?(Hash) ? __convert(e) : e }
         end
 
-        s.send("#{k}=".to_sym, v)
+        s[k] = v
       end
       s
     end