# File actionview/lib/action_view/template.rb, line 171
      def mime_types_implementation=(implementation)
        # This method isn't thread-safe, but it's not supposed
        # to be called after initialization
        if self::Types != implementation
          remove_const(:Types)
          const_set(:Types, implementation)
        end
      end

# File actionview/lib/action_view/template.rb, line 186
    def initialize(source, identifier, handler, locals:, format: nil, variant: nil, virtual_path: nil)
      @source            = source.dup
      @identifier        = identifier
      @handler           = handler
      @compiled          = false
      @locals            = locals
      @virtual_path      = virtual_path

      @variable = if @virtual_path
        base = @virtual_path.end_with?("/") ? "" : ::File.basename(@virtual_path)
        base =~ /\A_?(.*?)(?:\.\w+)*\z/
        $1.to_sym
      end

      @format            = format
      @variant           = variant
      @compile_mutex     = Mutex.new
      @strict_locals     = NONE
      @strict_local_keys = nil
      @type              = nil
    end

# File actionview/lib/action_view/template.rb, line 297
    def encode!
      source = self.source

      return source unless source.encoding == Encoding::BINARY

      # Look for # encoding: *. If we find one, we'll encode the
      # String in that encoding, otherwise, we'll use the
      # default external encoding.
      if source.sub!(LEADING_ENCODING_REGEXP, "")
        encoding = magic_encoding = $1
      else
        encoding = Encoding.default_external
      end

      # Tag the source with the default external encoding
      # or the encoding specified in the file
      source.force_encoding(encoding)

      # If the user didn't specify an encoding, and the handler
      # handles encodings, we simply pass the String as is to
      # the handler (with the default_external tag)
      if !magic_encoding && @handler.respond_to?(:handles_encoding?) && @handler.handles_encoding?
        source
      # Otherwise, if the String is valid in the encoding,
      # encode immediately to default_internal. This means
      # that if a handler doesn't handle encodings, it will
      # always get Strings in the default_internal
      elsif source.valid_encoding?
        source.encode!
      # Otherwise, since the String is invalid in the encoding
      # specified, raise an exception
      else
        raise WrongEncodingError.new(source, encoding)
      end
    end

# File actionview/lib/action_view/template.rb, line 276
    def inspect
      "#<#{self.class.name} #{short_identifier} locals=#{locals.inspect}>"
    end

# File actionview/lib/action_view/template.rb, line 152
    eager_autoload do
      autoload :Error
      autoload :RawFile
      autoload :Renderable
      autoload :Handlers
      autoload :HTML
      autoload :Inline
      autoload :Types
      autoload :Sources
      autoload :Text
      autoload :Types
    end

# File actionview/lib/action_view/template.rb, line 210
    def locals
      if strict_locals?
        nil
      else
        @locals
      end
    end

# File actionview/lib/action_view/template.rb, line 248
    def render(view, locals, buffer = nil, implicit_locals: [], add_to_stack: true, &block)
      instrument_render_template do
        compile!(view)

        if strict_locals? && @strict_local_keys && !implicit_locals.empty?
          locals_to_ignore = implicit_locals - @strict_local_keys
          locals.except!(*locals_to_ignore)
        end

        if buffer
          view._run(method_name, self, locals, buffer, add_to_stack: add_to_stack, has_strict_locals: strict_locals?, &block)
          nil
        else
          view._run(method_name, self, locals, OutputBuffer.new, add_to_stack: add_to_stack, has_strict_locals: strict_locals?, &block)&.to_s
        end
      end
    rescue => e
      handle_render_error(view, e)
    end

# File actionview/lib/action_view/template.rb, line 272
    def short_identifier
      @short_identifier ||= defined?(Rails.root) ? identifier.delete_prefix("#{Rails.root}/") : identifier
    end

# File actionview/lib/action_view/template.rb, line 280
    def source
      @source.to_s
    end

# File actionview/lib/action_view/template.rb, line 342
    def strict_locals!
      if @strict_locals == NONE
        self.source.sub!(STRICT_LOCALS_REGEX, "")
        @strict_locals = $1

        return if @strict_locals.nil? # Magic comment not found

        @strict_locals = "**nil" if @strict_locals.blank?
      end

      @strict_locals
    end

# File actionview/lib/action_view/template.rb, line 356
    def strict_locals?
      strict_locals!
    end

# File actionview/lib/action_view/template.rb, line 238
    def supports_streaming?
      handler.respond_to?(:supports_streaming?) && handler.supports_streaming?
    end

# File actionview/lib/action_view/template.rb, line 228
    def translate_location(backtrace_location, spot)
      if handler.respond_to?(:translate_location)
        handler.translate_location(spot, backtrace_location, encode!) || spot
      else
        spot
      end
    end

# File actionview/lib/action_view/template.rb, line 268
    def type
      @type ||= Types[format]
    end

# File actionview/lib/action_view/template.rb, line 544
      def instrument(action, &block) # :doc:
        ActiveSupport::Notifications.instrument("#{action}.action_view", instrument_payload, &block)
      end