diff options
Diffstat (limited to 'activesupport/lib')
| -rw-r--r-- | activesupport/lib/active_support/dependencies.rb | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/activesupport/lib/active_support/dependencies.rb b/activesupport/lib/active_support/dependencies.rb index 19d4ff51d7..6be19771f5 100644 --- a/activesupport/lib/active_support/dependencies.rb +++ b/activesupport/lib/active_support/dependencies.rb @@ -176,14 +176,22 @@ module ActiveSupport #:nodoc: end def const_missing(const_name) - # The interpreter does not pass nesting information, and in the - # case of anonymous modules we cannot even make the trade-off of - # assuming their name reflects the nesting. Resort to Object as - # the only meaningful guess we can make. - from_mod = anonymous? ? ::Object : self + from_mod = anonymous? ? guess_for_anonymous(const_name) : self Dependencies.load_missing_constant(from_mod, const_name) end + # Dependencies assumes the name of the module reflects the nesting (unless + # it can be proven that is not the case), and the path to the file that + # defines the constant. Anonymous modules cannot follow these conventions + # and we assume therefore the user wants to refer to a top-level constant. + def guess_for_anonymous(const_name) + if Object.const_defined?(const_name) + raise NameError, "#{const_name} cannot be autoloaded from an anonymous class or module" + else + Object + end + end + def unloadable(const_desc = self) super(const_desc) end @@ -456,8 +464,6 @@ module ActiveSupport #:nodoc: raise ArgumentError, "A copy of #{from_mod} has been removed from the module tree but is still active!" end - raise NameError, "#{from_mod} is not missing constant #{const_name}!" if from_mod.const_defined?(const_name, false) - qualified_name = qualified_name_for from_mod, const_name path_suffix = qualified_name.underscore |