module Rake
module InvocationExceptionMixin
# Return the invocation chain (list of Rake tasks) that were in
# effect when this exception was detected by rake. May be null if
# no tasks were active.
def chain
@rake_invocation_chain ||= nil
end
# Set the invocation chain in effect when this exception was
# detected.
def chain=(value)
@rake_invocation_chain = value
end
end
end