rubocop: fix offences of the Style/MethodMissingSuper cop

.rubocop_todo.yml

@@ -197,14 +197,3 @@ Style/FormatStringToken:
 Style/GlobalVars:
   Exclude:
     - 'spec/commands/edit_spec.rb'
-
-# Offense count: 7
-Style/MethodMissingSuper:
-  Exclude:
-    - 'lib/pry/code.rb'
-    - 'lib/pry/config/behavior.rb'
-    - 'lib/pry/method.rb'
-    - 'lib/pry/method/disowned.rb'
-    - 'lib/pry/output.rb'
-    - 'lib/pry/plugins.rb'
-    - 'lib/pry/wrapped_module.rb'

lib/pry/code.rb

@@ -331,14 +331,18 @@ class Pry
     end
 
     # Forward any missing methods to the output of `#to_s`.
-    def method_missing(name, *args, &block)
-      to_s.send(name, *args, &block)
+    def method_missing(method_name, *args, &block)
+      if (string = to_s).respond_to?(method_name)
+        string.__send__(method_name, *args, &block)
+      else
+        super
+      end
     end
     undef =~
 
     # Check whether String responds to missing methods.
-    def respond_to_missing?(name, include_all = false)
-      ''.respond_to?(name, include_all)
+    def respond_to_missing?(method_name, include_private = false)
+      ''.respond_to?(method_name, include_private) || super
     end
 
     if RUBY_VERSION.start_with?('1.9')

lib/pry/config/behavior.rb

@@ -317,18 +317,20 @@ class Pry
         q.text inspect[1..-1].gsub(INSPECT_REGEXP, "default=<")
       end
 
-      def method_missing(name, *args, &block)
-        key = name.to_s
-        if key[-1] == ASSIGNMENT
-          short_key = key[0..-2]
-          self[short_key] = args[0]
-        elsif key?(key)
-          self[key]
-        elsif @default.respond_to?(name)
-          value = @default.public_send(name, *args, &block)
-          self[key] = __dup(value)
+      # rubocop:disable Style/MethodMissingSuper
+      def method_missing(method_name, *args, &block)
+        name = method_name.to_s
+        if name[-1] == ASSIGNMENT
+          short_name = name[0..-2]
+          self[short_name] = args[0]
+        elsif key?(name)
+          self[name]
+        elsif @default.respond_to?(method_name)
+          value = @default.public_send(method_name, *args, &block)
+          self[name] = __dup(value)
         end
       end
+      # rubocop:enable Style/MethodMissingSuper
 
       def respond_to_missing?(key, include_all = false)
         key = key.to_s.chomp(ASSIGNMENT)

lib/pry/method.rb

@@ -493,7 +493,11 @@ class Pry
 
     # Delegate any unknown calls to the wrapped method.
     def method_missing(method_name, *args, &block)
-      @method.send(method_name, *args, &block)
+      if @method.respond_to?(method_name)
+        @method.__send__(method_name, *args, &block)
+      else
+        super
+      end
     end
 
     def respond_to_missing?(method_name, include_private = false)

lib/pry/method/disowned.rb

@@ -46,14 +46,16 @@ class Pry
       end
 
       # Raise a more useful error message instead of trying to forward to nil.
-      def method_missing(meth_name, *args, &block)
-        if method(:name).respond_to?(meth_name)
-          raise "Cannot call '#{meth_name}' on an undef'd method."
+      # rubocop:disable Style/MethodMissingSuper
+      def method_missing(method_name, *args, &block)
+        if method(:name).respond_to?(method_name)
+          raise "Cannot call '#{method_name}' on an undef'd method."
         end
 
-        Object.instance_method(:method_missing).bind(self)
-          .call(meth_name, *args, &block)
+        method = Object.instance_method(:method_missing).bind(self)
+        method.call(method_name, *args, &block)
       end
+      # rubocop:enable Style/MethodMissingSuper
 
       def respond_to_missing?(method_name, include_private = false)
         !method(:name).respond_to?(method_name) || super

lib/pry/output.rb

@@ -33,8 +33,12 @@ class Pry
       @boxed_io.respond_to?(:tty?) && @boxed_io.tty?
     end
 
-    def method_missing(name, *args, &block)
-      @boxed_io.__send__(name, *args, &block)
+    def method_missing(method_name, *args, &block)
+      if @boxed_io.respond_to?(method_name)
+        @boxed_io.__send__(method_name, *args, &block)
+      else
+        super
+      end
     end
 
     def respond_to_missing?(m, include_all = false)

lib/pry/plugins.rb

@@ -8,8 +8,9 @@ class Pry
         @name = name
       end
 
-      def method_missing(*_args)
+      def method_missing(*)
         warn "Warning: The plugin '#{@name}' was not found! (no gem found)"
+        super
       end
 
       def respond_to_missing?(*)

lib/pry/pry_instance.rb

@@ -567,7 +567,7 @@ class Pry
 
       unless @prompt_warn
         @prompt_warn = true
-        output.warn(
+        warn(
           "warning: setting prompt with help of " \
           "`Pry.config.prompt = [proc {}, proc {}]` is deprecated. " \
           "Use Pry::Prompt API instead"

lib/pry/wrapped_module.rb

@@ -146,7 +146,11 @@ class Pry
 
     # Forward method invocations to the wrapped module
     def method_missing(method_name, *args, &block)
-      wrapped.send(method_name, *args, &block)
+      if wrapped.respond_to?(method_name)
+        wrapped.send(method_name, *args, &block)
+      else
+        super
+      end
     end
 
     def respond_to_missing?(method_name, include_private = false)

spec/code_spec.rb

@@ -501,9 +501,17 @@ RSpec.describe Pry::Code do
   end
 
   describe "#method_missing" do
-    it "forwards any missing methods to the output of '#to_s'" do
-      expect(subject).to receive_message_chain(:to_s, :send)
-      subject.abcdefg
+    context "when a String responds to the given method" do
+      it "forwards the method to a String instance" do
+        expect(subject.upcase).to eq('')
+      end
+    end
+
+    context "when a String does not respond to the given method" do
+      it "raises NoMethodError" do
+        expect { subject.abcdefg }
+          .to raise_error(NoMethodError, /undefined method `abcdefg'/)
+      end
     end
   end