Fix some minor YARD issues

lib/coercible.rb

@@ -3,6 +3,15 @@ module Coercible
 
   UnsupportedCoercion = Class.new(StandardError)
 
+  # Test for rubinius platform
+  #
+  # @return [true]
+  #   if running under rubinius
+  #
+  # @return [false]
+  #   otherwise
+  #
+  # @api private
   def self.rbx?
     @is_rbx ||= defined?(RUBY_ENGINE) && RUBY_ENGINE == 'rbx'
   end

lib/coercible/coercer/configurable.rb

@@ -48,6 +48,10 @@ def config_name
         name.downcase.split('::').last.to_sym
       end
 
+      # Return configuration class
+      #
+      # @return [Class:Configuration]
+      #
       # @api private
       def configuration_class
         Configuration

lib/coercible/coercer/object.rb

@@ -31,6 +31,9 @@ def initialize(coercers = Coercer.new)
 
       # Inspect the coercer object
       #
+      # @example 
+      #   coercer[Object].inspect # => "<Coercer::Object primitive=Object>"
+      #
       # @return [String]
       #
       # @api public
@@ -121,6 +124,12 @@ def to_integer(value)
 
       # Return if the value was successfuly coerced
       #
+      # @example when coercion was successful
+      #   coercer[String].coerced?(1) # => true
+      #
+      # @example when coercion was NOT successful
+      #   coercer[String].coerced?("foo") # => false
+      #
       # @return [TrueClass,FalseClass]
       #
       # @api public

lib/support/options.rb

@@ -4,6 +4,12 @@ module Coercible
   module Options
     Undefined = Class.new.freeze
 
+    # Hook called when descendant was extended
+    #
+    # @param [Class|Module] descendant
+    #
+    # @return [undefined]
+    #
     # @api private
     def self.extended(descendant)
       descendant.extend(DescendantsTracker)