Support autoloading for custom Arbre components

lib/arbre/element.rb

@@ -174,7 +174,9 @@ def clear_children!
     #  4. Call super
     #
     ruby2_keywords def method_missing(name, *args, &block)
-      if current_arbre_element.respond_to?(name)
+      if "Arbre::Components::#{name.to_s.camelize}".safe_constantize && respond_to?(name)
+        public_send(name, *args, &block)
+      elsif current_arbre_element.respond_to?(name)
         current_arbre_element.send name, *args, &block
       elsif assigns && assigns.has_key?(name)
         assigns[name]

spec/rails/integration/rendering_spec.rb

@@ -27,6 +27,10 @@ def render_with_instance_variable
     render "arbre/page_with_assignment"
   end
 
+  def render_with_autoloadable_component
+    render "arbre/page_with_autoloadable_component"
+  end
+
   def render_partial_with_instance_variable
     @my_instance_var = "From Instance Var"
     render "arbre/page_with_arb_partial_and_assignment"
@@ -47,6 +51,7 @@ def render_with_block
       get 'test/render_partial', controller: "test"
       get 'test/render_erb_partial', controller: "test"
       get 'test/render_with_instance_variable', controller: "test"
+      get 'test/render_with_autoloadable_component', controller: "test"
       get 'test/render_partial_with_instance_variable', controller: "test"
       get 'test/render_page_with_helpers', controller: "test"
       get 'test/render_with_block', controller: "test"
@@ -95,6 +100,12 @@ def render_with_block
     expect(body).to have_css("h1", text: "From Instance Var")
   end
 
+  it "renders with autoloadable component" do
+    get "/test/render_with_autoloadable_component"
+    expect(response).to be_successful
+    expect(body).to have_css("div", text: "Autoloadable Component")
+  end
+
   it "renders an arbre partial with assignments" do
     get "/test/render_partial_with_instance_variable"
     expect(response).to be_successful

spec/rails/rails_spec_helper.rb

@@ -6,6 +6,7 @@
   if Rails.gem_version >= Gem::Version.new("7.1.0")
     config.active_support.cache_format_version = 7.1
   end
+  config.autoload_paths << "#{root}/services"
 end
 
 require 'rspec/rails'

spec/rails/stub_app/services/arbre/components/autoloadable_component.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+class Arbre::Components::AutoloadableComponent < Arbre::Component
+  builder_method :autoloadable_component
+
+  def build
+    div "Autoloadable Component"
+  end
+end

spec/rails/templates/arbre/page_with_autoloadable_component.arb

@@ -0,0 +1 @@
+autoloadable_component