diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 61 |
1 files changed, 26 insertions, 35 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index ea71569ca8..0ed4681b7d 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -1,3 +1,5 @@ +# frozen_string_literal: true + require "active_support/concern" require "active_support/descendants_tracker" require "active_support/core_ext/array/extract_options" @@ -62,8 +64,7 @@ module ActiveSupport included do extend ActiveSupport::DescendantsTracker - class_attribute :__callbacks, instance_writer: false - self.__callbacks ||= {} + class_attribute :__callbacks, instance_writer: false, default: {} end CALLBACK_FILTER_TYPES = [:before, :after, :around] @@ -297,8 +298,8 @@ module ActiveSupport @kind = kind @filter = filter @key = compute_identifier filter - @if = Array(options[:if]) - @unless = Array(options[:unless]) + @if = check_conditionals(Array(options[:if])) + @unless = check_conditionals(Array(options[:unless])) end def filter; @key; end @@ -322,7 +323,7 @@ module ActiveSupport def duplicates?(other) case @filter - when Symbol, String + when Symbol matches?(other.kind, other.filter) else false @@ -349,9 +350,21 @@ module ActiveSupport end private + def check_conditionals(conditionals) + if conditionals.any? { |c| c.is_a?(String) } + raise ArgumentError, <<-MSG.squish + Passing string to be evaluated in :if and :unless conditional + options is not supported. Pass a symbol for an instance method, + or a lambda, proc or block, instead. + MSG + end + + conditionals + end + def compute_identifier(filter) case filter - when String, ::Proc + when ::Proc filter.object_id else filter @@ -426,7 +439,6 @@ module ActiveSupport # Filters support: # # Symbols:: A method to call. - # Strings:: Some content to evaluate. # Procs:: A proc to call with the object. # Objects:: An object with a <tt>before_foo</tt> method on it to call. # @@ -436,8 +448,6 @@ module ActiveSupport case filter when Symbol new(nil, filter, [], nil) - when String - new(nil, :instance_exec, [:value], compile_lambda(filter)) when Conditionals::Value new(filter, :call, [:target, :value], nil) when ::Proc @@ -454,10 +464,6 @@ module ActiveSupport new(filter, method_to_call, [:target], nil) end end - - def self.compile_lambda(filter) - eval("lambda { |value| #{filter} }") - end end # Execute before and after filters in a sequence instead of @@ -512,7 +518,6 @@ module ActiveSupport end end - # An Array with a compile method. class CallbackChain #:nodoc:# include Enumerable @@ -598,7 +603,7 @@ module ActiveSupport Proc.new do |target, result_lambda| terminate = true catch(:abort) do - result_lambda.call if result_lambda.is_a?(Proc) + result_lambda.call terminate = false end terminate @@ -651,24 +656,17 @@ module ActiveSupport # # ===== Options # - # * <tt>:if</tt> - A symbol, a string (deprecated) or an array of symbols, - # each naming an instance method or a proc; the callback will be called - # only when they all return a true value. - # * <tt>:unless</tt> - A symbol, a string (deprecated) or an array of symbols, - # each naming an instance method or a proc; the callback will be called - # only when they all return a false value. + # * <tt>:if</tt> - A symbol or an array of symbols, each naming an instance + # method or a proc; the callback will be called only when they all return + # a true value. + # * <tt>:unless</tt> - A symbol or an array of symbols, each naming an + # instance method or a proc; the callback will be called only when they + # all return a false value. # * <tt>:prepend</tt> - If +true+, the callback will be prepended to the # existing chain rather than appended. def set_callback(name, *filter_list, &block) type, filters, options = normalize_callback_params(filter_list, block) - if options[:if].is_a?(String) || options[:unless].is_a?(String) - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing string to :if and :unless conditional options is deprecated - and will be removed in Rails 5.2 without replacement. - MSG - end - self_chain = get_callbacks name mapped = filters.map do |filter| Callback.build(self_chain, filter, type, options) @@ -693,13 +691,6 @@ module ActiveSupport def skip_callback(name, *filter_list, &block) type, filters, options = normalize_callback_params(filter_list, block) - if options[:if].is_a?(String) || options[:unless].is_a?(String) - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing string to :if and :unless conditional options is deprecated - and will be removed in Rails 5.2 without replacement. - MSG - end - options[:raise] = true unless options.key?(:raise) __update_callbacks(name) do |target, chain| |