call

# File actionview/lib/action_view/template/handlers/erb.rb, line 61
        def call(template, source)
          # First, convert to BINARY, so in case the encoding is
          # wrong, we can still find an encoding tag
          # (<%# encoding %>) inside the String using a regular
          # expression
          template_source = source.b

          erb = template_source.gsub(ENCODING_TAG, "")
          encoding = $2

          erb.force_encoding valid_encoding(source.dup, encoding)

          # Always make sure we return a String in the default_internal
          erb.encode!

          # Strip trailing newlines from the template if enabled
          erb.chomp! if strip_trailing_newlines

          options = {
            escape: (self.class.escape_ignore_list.include? template.type),
            trim: (self.class.erb_trim_mode == "-")
          }

          if ActionView::Base.annotate_rendered_view_with_filenames && template.format == :html
            options[:preamble] = "@output_buffer.safe_append='<!-- BEGIN #{template.short_identifier} -->';"
            options[:postamble] = "@output_buffer.safe_append='<!-- END #{template.short_identifier} -->';@output_buffer"
          end

          self.class.erb_implementation.new(erb, options).src
        end