require 'active_support/deprecation/proxy_wrappers' class LoadError REGEXPS = [ /^no such file to load -- (.+)$/i, /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i, /^Missing API definition file in (.+)$/i, /^cannot load such file -- (.+)$/i, ] unless method_defined?(:path) # Returns the path which was unable to be loaded. def path @path ||= begin REGEXPS.find do |regex| message =~ regex end $1 end end end # Returns true if the given path name (except perhaps for the ".rb" # extension) is the missing file which caused the exception to be raised. def is_missing?(location) location.sub(/\.rb$/, ''.freeze) == path.sub(/\.rb$/, ''.freeze) end end MissingSourceFile = ActiveSupport::Deprecation::DeprecatedConstantProxy.new('MissingSourceFile', 'LoadError')