Returns a list of new
constants found since the last call to watch_namespaces.
# File activesupport/lib/active_support/dependencies.rb, line 123
def new_constants
constants = []
# Grab the list of namespaces that we're looking for new constants under
@watching.last.each do |namespace|
# Retrieve the constants that were present under the namespace when watch_namespaces
# was originally called
original_constants = @stack[namespace].last
mod = Inflector.constantize(namespace) if Dependencies.qualified_const_defined?(namespace)
next unless mod.is_a?(Module)
# Get a list of the constants that were added
new_constants = mod.constants(false) - original_constants
# @stack[namespace] returns an Array of the constants that are being evaluated
# for that namespace. For instance, if parent.rb requires child.rb, the first
# element of @stack[Object] will be an Array of the constants that were present
# before parent.rb was required. The second element will be an Array of the
# constants that were present before child.rb was required.
@stack[namespace].each do |namespace_constants|
namespace_constants.concat(new_constants)
end
# Normalize the list of new constants, and add them to the list we will return
new_constants.each do |suffix|
constants << ([namespace, suffix] - ["Object"]).join("::".freeze)
end
end
constants
ensure
# A call to new_constants is always called after a call to watch_namespaces
pop_modules(@watching.pop)
end
