diff options
Diffstat (limited to 'actionview/lib/action_view/template.rb')
| -rw-r--r-- | actionview/lib/action_view/template.rb | 79 |
1 files changed, 57 insertions, 22 deletions
diff --git a/actionview/lib/action_view/template.rb b/actionview/lib/action_view/template.rb index 9d39d02a37..0ed208f27e 100644 --- a/actionview/lib/action_view/template.rb +++ b/actionview/lib/action_view/template.rb @@ -87,6 +87,19 @@ module ActionView # expected_encoding # ) + ## + # :method: local_assigns + # + # Returns a hash with the defined local variables. + # + # Given this sub template rendering: + # + # <%= render "shared/header", { headline: "Welcome", person: person } %> + # + # You can use +local_assigns+ in the sub templates to access the local variables: + # + # local_assigns[:headline] # => "Welcome" + eager_autoload do autoload :Error autoload :Handlers @@ -103,7 +116,7 @@ module ActionView # This finalizer is needed (and exactly with a proc inside another proc) # otherwise templates leak in development. - Finalizer = proc do |method_name, mod| + Finalizer = proc do |method_name, mod| # :nodoc: proc do mod.module_eval do remove_possible_method method_name @@ -117,6 +130,7 @@ module ActionView @source = source @identifier = identifier @handler = handler + @cache_name = extract_resource_cache_name @compiled = false @original_encoding = nil @locals = details[:locals] || [] @@ -127,7 +141,7 @@ module ActionView @compile_mutex = Mutex.new end - # Returns if the underlying handler supports streaming. If so, + # Returns whether the underlying handler supports streaming. If so, # a streaming buffer *may* be passed when it start rendering. def supports_streaming? handler.respond_to?(:supports_streaming?) && handler.supports_streaming? @@ -140,7 +154,7 @@ module ActionView # we use a bang in this instrumentation because you don't want to # consume this in production. This is only slow if it's being listened to. def render(view, locals, buffer=nil, &block) - instrument("!render_template") do + instrument("!render_template".freeze) do compile!(view) view.send(method_name, locals, buffer, &block) end @@ -152,6 +166,10 @@ module ActionView @type ||= Types[@formats.first] if @formats.first end + def eligible_for_collection_caching?(as: nil) + @cache_name == (as || inferred_cache_name).to_s + end + # Receives a view object and return a template similar to self by using @virtual_path. # # This method is useful if you have a template object but it does not contain its source @@ -172,7 +190,7 @@ module ActionView end def inspect - @inspect ||= defined?(Rails.root) ? identifier.sub("#{Rails.root}/", '') : identifier + @inspect ||= defined?(Rails.root) ? identifier.sub("#{Rails.root}/", ''.freeze) : identifier end # This method is responsible for properly setting the encoding of the @@ -242,7 +260,7 @@ module ActionView end instrument("!compile_template") do - compile(view, mod) + compile(mod) end # Just discard the source if we have a virtual path. This @@ -264,7 +282,7 @@ module ActionView # encode the source into <tt>Encoding.default_internal</tt>. # In general, this means that templates will be UTF-8 inside of Rails, # regardless of the original source encoding. - def compile(view, mod) #:nodoc: + def compile(mod) #:nodoc: encode! method_name = self.method_name code = @handler.call(self) @@ -293,18 +311,8 @@ module ActionView raise WrongEncodingError.new(@source, Encoding.default_internal) end - begin - mod.module_eval(source, identifier, 0) - ObjectSpace.define_finalizer(self, Finalizer[method_name, mod]) - rescue => e # errors from template code - if logger = (view && view.logger) - logger.debug "ERROR: compiling #{method_name} RAISED #{e}" - logger.debug "Function body: #{source}" - logger.debug "Backtrace: #{e.backtrace.join("\n")}" - end - - raise ActionView::Template::Error.new(self, e) - end + mod.module_eval(source, identifier, 0) + ObjectSpace.define_finalizer(self, Finalizer[method_name, mod]) end def handle_render_error(view, e) #:nodoc: @@ -323,20 +331,47 @@ module ActionView def locals_code #:nodoc: # Double assign to suppress the dreaded 'assigned but unused variable' warning - @locals.map { |key| "#{key} = #{key} = local_assigns[:#{key}];" }.join + @locals.each_with_object('') { |key, code| code << "#{key} = #{key} = local_assigns[:#{key}];" } end def method_name #:nodoc: - @method_name ||= "_#{identifier_method_name}__#{@identifier.hash}_#{__id__}".gsub('-', "_") + @method_name ||= begin + m = "_#{identifier_method_name}__#{@identifier.hash}_#{__id__}" + m.tr!('-'.freeze, '_'.freeze) + m + end end def identifier_method_name #:nodoc: - inspect.gsub(/[^a-z_]/, '_') + inspect.tr('^a-z_'.freeze, '_'.freeze) end def instrument(action, &block) payload = { virtual_path: @virtual_path, identifier: @identifier } - ActiveSupport::Notifications.instrument("#{action}.action_view", payload, &block) + case action + when "!render_template".freeze + ActiveSupport::Notifications.instrument("!render_template.action_view".freeze, payload, &block) + else + ActiveSupport::Notifications.instrument("#{action}.action_view".freeze, payload, &block) + end + end + + EXPLICIT_COLLECTION = /# Template Collection: (?<resource_name>\w+)/ + + def extract_resource_cache_name + if match = @source.match(EXPLICIT_COLLECTION) || resource_cache_call_match + match[:resource_name] + end + end + + def resource_cache_call_match + if @handler.respond_to?(:resource_cache_call_pattern) + @source.match(@handler.resource_cache_call_pattern) + end + end + + def inferred_cache_name + @inferred_cache_name ||= @virtual_path.split('/'.freeze).last.sub('_'.freeze, ''.freeze) end end end |