Remove deprecated support to pass an object that is not a `ActionView::LookupContext` as the first argument in `ActionView::Base#initialize`

actionview/CHANGELOG.md

@@ -1,3 +1,8 @@
+*   Remove deprecated support to pass an object that is not a `ActionView::LookupContext` as the first argument
+    in `ActionView::Base#initialize`.
+ 
+    *Rafael Mendonça França*
+
 *   Remove deprecated `format` argument `ActionView::Base#initialize`.
 
     *Rafael Mendonça França*

actionview/lib/action_view/base.rb

@@ -213,21 +213,6 @@ module ActionView #:nodoc:
 
     # :stopdoc:
 
-    def self.build_lookup_context(context)
-      case context
-      when ActionView::Renderer
-        context.lookup_context
-      when Array
-        ActionView::LookupContext.new(context)
-      when ActionView::PathSet
-        ActionView::LookupContext.new(context)
-      when nil
-        ActionView::LookupContext.new([])
-      else
-        raise NotImplementedError, context.class.name
-      end
-    end
-
     def self.empty
       with_view_paths([])
     end
@@ -242,19 +227,10 @@ module ActionView #:nodoc:
 
     # :startdoc:
 
-    def initialize(lookup_context = nil, assigns = {}, controller = nil) #:nodoc:
+    def initialize(lookup_context, assigns = {}, controller = nil) #:nodoc:
       @_config = ActiveSupport::InheritableOptions.new
 
-      case lookup_context
-      when ActionView::LookupContext
-        @lookup_context = lookup_context
-      else
-        ActiveSupport::Deprecation.warn <<~eowarn.squish
-        ActionView::Base instances should be constructed with a lookup context,
-        assignments, and a controller.
-        eowarn
-        @lookup_context = self.class.build_lookup_context(lookup_context)
-      end
+      @lookup_context = lookup_context
 
       @view_renderer = ActionView::Renderer.new @lookup_context
       @current_template = nil

actionview/test/template/render_test.rb

@@ -378,20 +378,6 @@ module RenderTestCases
     assert_equal "Hello: davidHello: mary", @view.render(partial: "test/customer", collection: customers)
   end
 
-  def test_deprecated_constructor
-    assert_deprecated do
-      ActionView::Base.new
-    end
-
-    assert_deprecated do
-      ActionView::Base.new ["/a"]
-    end
-
-    assert_deprecated do
-      ActionView::Base.new ActionView::PathSet.new ["/a"]
-    end
-  end
-
   def test_without_compiled_method_container_is_deprecated
     view = ActionView::Base.with_view_paths(ActionController::Base.view_paths)
     assert_deprecated("ActionView::Base instances must implement `compiled_method_container`") do

guides/source/6_1_release_notes.md

@@ -55,6 +55,9 @@ Please refer to the [Changelog][action-pack] for detailed changes.
 
 ### Removals
 
+*   Remove deprecated support to pass an object that is not a `ActionView::LookupContext` as the first argument
+    in `ActionView::Base#initialize`.
+
 *   Remove deprecated `format` argument `ActionView::Base#initialize`.
 
 *   Remove deprecated `ActionView::Template#refresh`.