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Contents
# frozen_string_literal: true
require_relative 'template'
require 'erubi'
module Tilt
# Erubi (a simplified version of Erubis) template implementation.
# See https://github.com/jeremyevans/erubi
#
# ErubiTemplate supports the following additional options, in addition
# to the options supported by the Erubi engine:
#
# :engine_class :: allows you to specify a custom engine class to use
# instead of the default (which is ::Erubi::Engine).
class ErubiTemplate < Template
def prepare
@options[:preamble] = false
@options[:postamble] = false
@options[:ensure] = true
engine_class = @options[:engine_class] || Erubi::Engine
# If :freeze option is given, the intent is to setup frozen string
# literals in the template. So enable frozen string literals in the
# code Tilt generates if the :freeze option is given.
if @freeze_string_literals = !!@options[:freeze]
# Passing the :freeze option to Erubi sets the
# frozen-string-literal magic comment, which doesn't have an effect
# with Tilt as Tilt wraps the resulting code. Worse, the magic
# comment appearing not at the top of the file can cause a warning.
# So remove the :freeze option before passing to Erubi.
@options.delete(:freeze)
# Erubi by default appends .freeze to template literals on Ruby 2.1+,
# but that is not necessary and slows down code when Tilt is using
# frozen string literals, so pass the :freeze_template_literals
# option to not append .freeze.
@options[:freeze_template_literals] = false
end
@engine = engine_class.new(@data, @options)
@outvar = @engine.bufvar
@src = @engine.src
@engine
end
def precompiled_template(locals)
@src
end
def freeze_string_literals?
@freeze_string_literals
end
end
end
Version data entries
12 entries across 12 versions & 4 rubygems