class Tilt::HamlTemplate

def evaluate(scope, locals, &block)
  raise ArgumentError, 'invalid scope: must not be frozen' if scope.frozen?
  super
end

def evaluate(scope, locals, &block)
  raise ArgumentError, 'invalid scope: must not be frozen' if scope.frozen?
  if @engine.respond_to?(:precompiled_method_return_value, true)
    super
  else
    @engine.render(scope, locals, &block)
  end
end

def precompiled_postamble(locals)
  @engine.instance_eval do
    <<-RUBY
        #{precompiled_method_return_value}
      ensure
        @haml_buffer = @haml_buffer.upper if haml_buffer
      end
    RUBY
  end
end

def precompiled_preamble(locals)
  local_assigns = super
  @engine.instance_eval do
    <<-RUBY
      begin
        extend Haml::Helpers
        _hamlout = @haml_buffer = Haml::Buffer.new(haml_buffer, #{options_for_buffer.inspect})
        _erbout = _hamlout.buffer
        __in_erb_template = true
        _haml_locals = locals
        #{local_assigns}
    RUBY
  end
end

def precompiled_template(locals)
  @engine.precompiled_with_ambles(
    [],
    after_preamble: <<-RUBY
      __in_erb_template = true
      _haml_locals = locals
    RUBY
  )
end

def precompiled_template(locals)
  @engine.precompiled
end

def prepare
  @options[:filename] = eval_file
  @options[:line] = @line
  if @options.include?(:outvar)
    @options[:buffer] = @options.delete(:outvar)
    @options[:save_buffer] = true
  end
  @engine = ::Haml::TempleEngine.new(@options)
  @engine.compile(@data)
end

def prepare
  @options[:filename] = eval_file
  @options[:line] = @line
  @engine = ::Haml::Engine.new(@data, @options)
end