From e76a84350595ca6772d3c00f456b35e411fba6c1 Mon Sep 17 00:00:00 2001 From: schneems Date: Sat, 25 Jul 2015 00:18:13 -0500 Subject: Cut string allocations in content_tag_string content_tag's first argument is will generate a string with an html tag so `:a` will generate: ``. When this happens, the symbol is implicitly `to_s`-d so a new string is allocated. We can get around that by using a frozen string instead which This change buys us 74,236 bytes of memory and 1,855 fewer objects per request. --- actionview/lib/action_view/helpers/asset_tag_helper.rb | 2 +- actionview/lib/action_view/helpers/date_helper.rb | 12 ++++++------ actionview/lib/action_view/helpers/form_options_helper.rb | 8 ++++---- actionview/lib/action_view/helpers/form_tag_helper.rb | 8 ++++---- actionview/lib/action_view/helpers/javascript_helper.rb | 6 +++--- actionview/lib/action_view/helpers/url_helper.rb | 4 ++-- 6 files changed, 20 insertions(+), 20 deletions(-) (limited to 'actionview') diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb index 3041ad3ef7..e506c782d6 100644 --- a/actionview/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb @@ -60,7 +60,7 @@ module ActionView tag_options = { "src" => path_to_javascript(source, path_options) }.merge!(options) - content_tag(:script, "", tag_options) + content_tag("script".freeze, "", tag_options) }.join("\n").html_safe end diff --git a/actionview/lib/action_view/helpers/date_helper.rb b/actionview/lib/action_view/helpers/date_helper.rb index fbd7261477..94fbaa2dca 100644 --- a/actionview/lib/action_view/helpers/date_helper.rb +++ b/actionview/lib/action_view/helpers/date_helper.rb @@ -681,7 +681,7 @@ module ActionView content = args.first || I18n.l(date_or_time, :format => format) datetime = date_or_time.acts_like?(:time) ? date_or_time.xmlschema : date_or_time.iso8601 - content_tag(:time, content, options.reverse_merge(:datetime => datetime), &block) + content_tag("time".freeze, content, options.reverse_merge(:datetime => datetime), &block) end end @@ -809,7 +809,7 @@ module ActionView 1.upto(12) do |month_number| options = { :value => month_number } options[:selected] = "selected" if month == month_number - month_options << content_tag(:option, month_name(month_number), options) + "\n" + month_options << content_tag("option".freeze, month_name(month_number), options) + "\n" end build_select(:month, month_options.join) end @@ -971,7 +971,7 @@ module ActionView tag_options[:selected] = "selected" if selected == i text = options[:use_two_digit_numbers] ? sprintf("%02d", i) : value text = options[:ampm] ? AMPM_TRANSLATION[i] : text - select_options << content_tag(:option, text, tag_options) + select_options << content_tag("option".freeze, text, tag_options) end (select_options.join("\n") + "\n").html_safe @@ -991,11 +991,11 @@ module ActionView select_options[:class] = [select_options[:class], type].compact.join(' ') if @options[:with_css_classes] select_html = "\n" - select_html << content_tag(:option, '', :value => '') + "\n" if @options[:include_blank] + select_html << content_tag("option".freeze, '', :value => '') + "\n" if @options[:include_blank] select_html << prompt_option_tag(type, @options[:prompt]) + "\n" if @options[:prompt] select_html << select_options_as_html - (content_tag(:select, select_html.html_safe, select_options) + "\n").html_safe + (content_tag("select".freeze, select_html.html_safe, select_options) + "\n").html_safe end # Builds a prompt option tag with supplied options or from default options. @@ -1012,7 +1012,7 @@ module ActionView I18n.translate(:"datetime.prompts.#{type}", :locale => @options[:locale]) end - prompt ? content_tag(:option, prompt, :value => '') : '' + prompt ? content_tag("option".freeze, prompt, :value => '') : '' end # Builds hidden input tag for date part and value. diff --git a/actionview/lib/action_view/helpers/form_options_helper.rb b/actionview/lib/action_view/helpers/form_options_helper.rb index 8e729b3c39..728e633bbf 100644 --- a/actionview/lib/action_view/helpers/form_options_helper.rb +++ b/actionview/lib/action_view/helpers/form_options_helper.rb @@ -456,7 +456,7 @@ module ActionView option_tags = options_from_collection_for_select( group.send(group_method), option_key_method, option_value_method, selected_key) - content_tag(:optgroup, option_tags, label: group.send(group_label_method)) + content_tag("optgroup".freeze, option_tags, label: group.send(group_label_method)) end.join.html_safe end @@ -528,7 +528,7 @@ module ActionView body = "".html_safe if prompt - body.safe_concat content_tag(:option, prompt_text(prompt), value: "") + body.safe_concat content_tag("option".freeze, prompt_text(prompt), value: "") end grouped_options.each do |container| @@ -541,7 +541,7 @@ module ActionView end html_attributes = { label: label }.merge!(html_attributes) - body.safe_concat content_tag(:optgroup, options_for_select(container, selected_key), html_attributes) + body.safe_concat content_tag("optgroup".freeze, options_for_select(container, selected_key), html_attributes) end body @@ -577,7 +577,7 @@ module ActionView end zone_options.safe_concat options_for_select(convert_zones[priority_zones], selected) - zone_options.safe_concat content_tag(:option, '-------------', value: '', disabled: true) + zone_options.safe_concat content_tag("option".freeze, '-------------', value: '', disabled: true) zone_options.safe_concat "\n" zones = zones - priority_zones diff --git a/actionview/lib/action_view/helpers/form_tag_helper.rb b/actionview/lib/action_view/helpers/form_tag_helper.rb index 896020bc15..d36701955a 100644 --- a/actionview/lib/action_view/helpers/form_tag_helper.rb +++ b/actionview/lib/action_view/helpers/form_tag_helper.rb @@ -140,15 +140,15 @@ module ActionView end if include_blank - option_tags = content_tag(:option, include_blank, value: '').safe_concat(option_tags) + option_tags = content_tag("option".freeze, include_blank, value: '').safe_concat(option_tags) end end if prompt = options.delete(:prompt) - option_tags = content_tag(:option, prompt, value: '').safe_concat(option_tags) + option_tags = content_tag("option".freeze, prompt, value: '').safe_concat(option_tags) end - content_tag :select, option_tags, { "name" => html_name, "id" => sanitize_to_id(name) }.update(options.stringify_keys) + content_tag "select".freeze, option_tags, { "name" => html_name, "id" => sanitize_to_id(name) }.update(options.stringify_keys) end # Creates a standard text field; use these text fields to input smaller chunks of text like a username @@ -568,7 +568,7 @@ module ActionView # # =>

def field_set_tag(legend = nil, options = nil, &block) output = tag(:fieldset, options, true) - output.safe_concat(content_tag(:legend, legend)) unless legend.blank? + output.safe_concat(content_tag("legend".freeze, legend)) unless legend.blank? output.concat(capture(&block)) if block_given? output.safe_concat("") end diff --git a/actionview/lib/action_view/helpers/javascript_helper.rb b/actionview/lib/action_view/helpers/javascript_helper.rb index e237a32cb7..ed7e882c94 100644 --- a/actionview/lib/action_view/helpers/javascript_helper.rb +++ b/actionview/lib/action_view/helpers/javascript_helper.rb @@ -47,8 +47,8 @@ module ActionView # tag. # # javascript_tag "alert('All is good')", defer: 'defer' - # - # Returns: + # + # Returns: #