Enable rubocop-sorbet.

Library/.rubocop.yml

@@ -264,6 +264,14 @@ Layout/LineLength:
                     ' "~/Library/Application Support/', '"~/Library/Caches/', '"~/Application Support',
                     ' was verified as official when first introduced to the cask']
 
+# Enable once we are using `sorbet-runtime`.
+Sorbet/FalseSigil:
+  Enabled: false
+
+# Try getting rid of these.
+Sorbet/ConstantsFromStrings:
+  Enabled: false
+
 # Avoid false positives on modifiers used on symbols of methods
 # See https://github.com/rubocop-hq/rubocop/issues/5953
 Style/AccessModifierDeclarations:

Library/Homebrew/debrew/irb.rb

@@ -4,34 +4,30 @@ require "irb"
 
 # @private
 module IRB
-  @setup_done = false
+  def self.parse_opts(argv: nil); end
 
-  extend Module.new {
-    def parse_opts; end
-
-    def start_within(binding)
-      unless @setup_done
-        setup(nil, argv: [])
-        @setup_done = true
-      end
-
-      workspace = WorkSpace.new(binding)
-      irb = Irb.new(workspace)
-
-      @CONF[:IRB_RC]&.call(irb.context)
-      @CONF[:MAIN_CONTEXT] = irb.context
-
-      trap("SIGINT") do
-        irb.signal_handle
-      end
-
-      begin
-        catch(:IRB_EXIT) do
-          irb.eval_input
-        end
-      ensure
-        irb_at_exit
-      end
+  def self.start_within(binding)
+    unless @setup_done
+      setup(nil, argv: [])
+      @setup_done = true
     end
-  }
+
+    workspace = WorkSpace.new(binding)
+    irb = Irb.new(workspace)
+
+    @CONF[:IRB_RC]&.call(irb.context)
+    @CONF[:MAIN_CONTEXT] = irb.context
+
+    trap("SIGINT") do
+      irb.signal_handle
+    end
+
+    begin
+      catch(:IRB_EXIT) do
+        irb.eval_input
+      end
+    ensure
+      irb_at_exit
+    end
+  end
 end

Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb

@@ -2,7 +2,7 @@
 
 module UnpackStrategy
   class Zip
-    prepend Module.new {
+    module MacOSZipExtension
       def extract_to_dir(unpack_dir, basename:, verbose:)
         if merge_xattrs && contains_extended_attributes?(path)
           # We use ditto directly, because dot_clean has issues if the __MACOSX
@@ -46,6 +46,9 @@ module UnpackStrategy
           end
         end
       end
-    }
+    end
+    private_constant :MacOSZipExtension
+
+    prepend MacOSZipExtension
   end
 end

Library/Homebrew/rubocops.rb

@@ -4,6 +4,8 @@ require_relative "load_path"
 
 require "rubocop-performance"
 require "rubocop-rspec"
+require "rubocop-sorbet"
+
 require "rubocops/formula_desc"
 require "rubocops/components_order"
 require "rubocops/components_redundancy"

Library/Homebrew/sorbet/tapioca/require.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: true
 # typed: false
+# frozen_string_literal: true
 
 # Add your extra requires here