diff options
Diffstat (limited to 'activesupport/lib/active_support')
-rw-r--r-- | activesupport/lib/active_support/dependencies.rb | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/activesupport/lib/active_support/dependencies.rb b/activesupport/lib/active_support/dependencies.rb index 70b34c90e8..eaba46dd9c 100644 --- a/activesupport/lib/active_support/dependencies.rb +++ b/activesupport/lib/active_support/dependencies.rb @@ -120,15 +120,26 @@ module Dependencies #:nodoc: # We can't use defined? because it will invoke const_missing for the parent # of the name we are checking. names.inject(Object) do |mod, name| - return false unless mod.const_defined? name + return false unless uninherited_const_defined?(mod, name) mod.const_get name end return true end + if Module.method(:const_defined?).arity == 1 + # Does this module define this constant? + # Wrapper to accomodate changing Module#const_defined? in Ruby 1.9 + def uninherited_const_defined?(mod, const) + mod.const_defined?(const) + end + else + def uninherited_const_defined?(mod, const) #:nodoc: + mod.const_defined?(const, false) + end + end + # Given +path+, a filesystem path to a ruby file, return an array of constant # paths which would cause Dependencies to attempt to load this file. - # def loadable_constants_for_path(path, bases = load_paths) path = $1 if path =~ /\A(.*)\.rb\Z/ expanded_path = File.expand_path(path) @@ -237,7 +248,7 @@ module Dependencies #:nodoc: raise ArgumentError, "A copy of #{from_mod} has been removed from the module tree but is still active!" end - raise ArgumentError, "#{from_mod} is not missing constant #{const_name}!" if from_mod.const_defined?(const_name) + raise ArgumentError, "#{from_mod} is not missing constant #{const_name}!" if uninherited_const_defined?(from_mod, const_name) qualified_name = qualified_name_for from_mod, const_name path_suffix = qualified_name.underscore @@ -246,12 +257,12 @@ module Dependencies #:nodoc: file_path = search_for_file(path_suffix) if file_path && ! loaded.include?(File.expand_path(file_path)) # We found a matching file to load require_or_load file_path - raise LoadError, "Expected #{file_path} to define #{qualified_name}" unless from_mod.const_defined?(const_name) + raise LoadError, "Expected #{file_path} to define #{qualified_name}" unless uninherited_const_defined?(from_mod, const_name) return from_mod.const_get(const_name) elsif mod = autoload_module!(from_mod, const_name, qualified_name, path_suffix) return mod elsif (parent = from_mod.parent) && parent != from_mod && - ! from_mod.parents.any? { |p| p.const_defined?(const_name) } + ! from_mod.parents.any? { |p| uninherited_const_defined?(p, const_name) } # If our parents do not have a constant named +const_name+ then we are free # to attempt to load upwards. If they do have such a constant, then this # const_missing must be due to from_mod::const_name, which should not |