Module: ActiveSupport::Dependencies::ModuleConstMissing
- Defined in:
- activesupport/lib/active_support/dependencies.rb
Overview
Module includes this module.
Class Method Summary collapse
Instance Method Summary collapse
- #const_missing(const_name) ⇒ Object
-
#guess_for_anonymous(const_name) ⇒ Object
We assume that 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.
- #unloadable(const_desc = self) ⇒ Object
Class Method Details
.append_features(base) ⇒ Object
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# File 'activesupport/lib/active_support/dependencies.rb', line 190 def self.append_features(base) base.class_eval do # Emulate #exclude via an ivar return if defined?(@_const_missing) && @_const_missing @_const_missing = instance_method(:const_missing) remove_method(:const_missing) end super end |
.exclude_from(base) ⇒ Object
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# File 'activesupport/lib/active_support/dependencies.rb', line 200 def self.exclude_from(base) base.class_eval do define_method :const_missing, @_const_missing @_const_missing = nil end end |
.include_into(base) ⇒ Object
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# File 'activesupport/lib/active_support/dependencies.rb', line 207 def self.include_into(base) base.include(self) append_features(base) end |
Instance Method Details
#const_missing(const_name) ⇒ Object
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# File 'activesupport/lib/active_support/dependencies.rb', line 212 def const_missing(const_name) from_mod = anonymous? ? guess_for_anonymous(const_name) : self Dependencies.load_missing_constant(from_mod, const_name) end |
#guess_for_anonymous(const_name) ⇒ Object
We assume that 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 therefore we assume that the user wants to refer to a top-level constant.
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# File 'activesupport/lib/active_support/dependencies.rb', line 222 def guess_for_anonymous(const_name) if Object.const_defined?(const_name) raise NameError.new "#{const_name} cannot be autoloaded from an anonymous class or module", const_name else Object end end |
#unloadable(const_desc = self) ⇒ Object
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# File 'activesupport/lib/active_support/dependencies.rb', line 230 def unloadable(const_desc = self) super(const_desc) end |