diff options
| -rw-r--r-- | activerecord/lib/active_record/base.rb | 2 | ||||
| -rw-r--r-- | activesupport/lib/active_support/whiny_nil.rb | 42 | ||||
| -rw-r--r-- | activesupport/test/whiny_nil_test.rb | 43 |
3 files changed, 2 insertions, 85 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 7ba585b8e0..58d23d2f78 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -2222,8 +2222,6 @@ MSG include AutosaveAssociation, NestedAttributes include Aggregations, Transactions, Reflection, Serialization, Store - NilClass.add_whiner(self) if NilClass.respond_to?(:add_whiner) - # Returns the value of the attribute identified by <tt>attr_name</tt> after it has been typecast (for example, # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)). # (Alias for the protected read_attribute method). diff --git a/activesupport/lib/active_support/whiny_nil.rb b/activesupport/lib/active_support/whiny_nil.rb index 577db5018e..a065233679 100644 --- a/activesupport/lib/active_support/whiny_nil.rb +++ b/activesupport/lib/active_support/whiny_nil.rb @@ -1,21 +1,6 @@ # Extensions to +nil+ which allow for more helpful error messages for people who # are new to Rails. # -# Ruby raises NoMethodError if you invoke a method on an object that does not -# respond to it: -# -# $ ruby -e nil.destroy -# -e:1: undefined method `destroy' for nil:NilClass (NoMethodError) -# -# With these extensions, if the method belongs to the public interface of the -# classes in NilClass::WHINERS the error message suggests which could be the -# actual intended class: -# -# $ rails runner nil.destroy -# ... -# You might have expected an instance of ActiveRecord::Base. -# ... -# # NilClass#id exists in Ruby 1.8 (though it is deprecated). Since +id+ is a fundamental # method of Active Record models NilClass#id is redefined as well to raise a RuntimeError # and warn the user. She probably wanted a model database identifier and the 4 @@ -25,36 +10,13 @@ # By default it is on in development and test modes, and it is off in production # mode. class NilClass - METHOD_CLASS_MAP = Hash.new - def self.add_whiner(klass) - methods = klass.public_instance_methods - public_instance_methods - class_name = klass.name - methods.each { |method| METHOD_CLASS_MAP[method.to_sym] = class_name } + ActiveSupport::Deprecation.warn "NilClass.add_whiner is deprecated and this functionality is " \ + "removed from Rails versions as it affects Ruby 1.9 performance.", caller end - add_whiner ::Array - # Raises a RuntimeError when you attempt to call +id+ on +nil+. def id raise RuntimeError, "Called id for nil, which would mistakenly be #{object_id} -- if you really wanted the id of nil, use object_id", caller end - - private - def method_missing(method, *args) - if klass = METHOD_CLASS_MAP[method] - raise_nil_warning_for klass, method, caller - else - super - end - end - - # Raises a NoMethodError when you attempt to call a method on +nil+. - def raise_nil_warning_for(class_name = nil, selector = nil, with_caller = nil) - message = "You have a nil object when you didn't expect it!" - message << "\nYou might have expected an instance of #{class_name}." if class_name - message << "\nThe error occurred while evaluating nil.#{selector}" if selector - - raise NoMethodError, message, with_caller || caller - end end diff --git a/activesupport/test/whiny_nil_test.rb b/activesupport/test/whiny_nil_test.rb index 1acaf7228f..8c1f1b2677 100644 --- a/activesupport/test/whiny_nil_test.rb +++ b/activesupport/test/whiny_nil_test.rb @@ -1,54 +1,11 @@ -# Stub to enable testing without Active Record -module ActiveRecord - class Base - def save! - end - end -end - require 'abstract_unit' require 'active_support/whiny_nil' -NilClass.add_whiner ::ActiveRecord::Base - class WhinyNilTest < Test::Unit::TestCase - def test_unchanged - nil.method_thats_not_in_whiners - rescue NoMethodError => nme - assert_match(/nil:NilClass/, nme.message) - end - - def test_active_record - nil.save! - rescue NoMethodError => nme - assert_no_match(/nil:NilClass/, nme.message) - assert_match(/nil\.save!/, nme.message) - end - - def test_array - nil.each - rescue NoMethodError => nme - assert_no_match(/nil:NilClass/, nme.message) - assert_match(/nil\.each/, nme.message) - end - def test_id nil.id rescue RuntimeError => nme assert_no_match(/nil:NilClass/, nme.message) assert_match(Regexp.new(nil.object_id.to_s), nme.message) end - - def test_no_to_ary_coercion - nil.to_ary - rescue NoMethodError => nme - assert_no_match(/nil:NilClass/, nme.message) - assert_match(/nil\.to_ary/, nme.message) - end - - def test_no_to_str_coercion - nil.to_str - rescue NoMethodError => nme - assert_match(/nil:NilClass/, nme.message) - end end |