Enable warning on shape too complex

performance/components/complex_component.html.erb

@@ -0,0 +1,5 @@
+<h1>hello <%= @name %></h1>
+
+<% 50.times do %>
+  <%= render Performance::NestedComplexComponent.new(name: @name) %>
+<% end %>

performance/components/complex_component.rb

@@ -0,0 +1,8 @@
+class Performance::ComplexComponent < ViewComponent::Base
+  def initialize(name:)
+    ('a'...'z').to_a.shuffle.each do |c|
+        instance_variable_set("@rand_var_#{c}", true)
+    end
+    @name = name
+  end
+end

performance/components/name_component.rb

@@ -2,6 +2,9 @@
 
 class Performance::NameComponent < ViewComponent::Base
   def initialize(name:)
+    ('a'...'z').to_a.each do |c|
+      instance_variable_set("@rand_var_#{c}", true)
+    end
     @name = name
   end
 end

performance/components/nested_complex_component.html.erb

@@ -0,0 +1 @@
+<p>nested hello <%= @name %></p>

performance/components/nested_complex_component.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class Performance::NestedComplexComponent < ViewComponent::Base
+  def initialize(name:)
+    ('a'...'z').to_a.shuffle.each do |c|
+        instance_variable_set("@rand_var_#{c}", true)
+    end
+    @name = name
+  end
+end

performance/components/nested_name_component.rb

@@ -2,6 +2,9 @@
 
 class Performance::NestedNameComponent < ViewComponent::Base
   def initialize(name:)
+    ('a'...'z').to_a.each do |c|
+      instance_variable_set("@rand_var_#{c}", true)
+    end
     @name = name
   end
 end

performance/partial_benchmark.rb

@@ -5,6 +5,8 @@
 
 require "benchmark/ips"
 
+Warning[:performance] = true
+
 # Configure Rails Environment
 ENV["RAILS_ENV"] = "production"
 require File.expand_path("../test/sandbox/config/environment.rb", __dir__)
@@ -13,6 +15,8 @@ module Performance
   require_relative "components/name_component"
   require_relative "components/nested_name_component"
   require_relative "components/inline_component"
+  require_relative "components/complex_component"
+  require_relative "components/nested_complex_component"
 end
 
 class BenchmarksController < ActionController::Base
@@ -21,13 +25,16 @@ class BenchmarksController < ActionController::Base
 BenchmarksController.view_paths = [File.expand_path("./views", __dir__)]
 controller_view = BenchmarksController.new.view_context
 
+controller_view.render(Performance::ComplexComponent.new(name: "HI there"))
+
 Benchmark.ips do |x|
   x.time = 10
   x.warmup = 2
 
   x.report("component") { controller_view.render(Performance::NameComponent.new(name: "Fox Mulder")) }
-  x.report("inline") { controller_view.render(Performance::InlineComponent.new(name: "Fox Mulder")) }
-  x.report("partial") { controller_view.render("partial", name: "Fox Mulder") }
+  # x.report("inline") { controller_view.render(Performance::InlineComponent.new(name: "Fox Mulder")) }
+  # x.report("partial") { controller_view.render("partial", name: "Fox Mulder") }
+  x.report("complex") { controller_view.render(Performance::ComplexComponent.new(name: "Fox Mulder")) }
 
   x.compare!
 end

test/test_helper.rb

@@ -5,6 +5,8 @@
 require "simplecov-console"
 require "rails/version"
 
+Warning[:performance] = true
+
 if ENV["MEASURE_COVERAGE"]
   SimpleCov.start do
     command_name "minitest-rails#{Rails::VERSION::STRING}-ruby#{RUBY_VERSION}"