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Contents
# frozen_string_literal: true
require_relative 'template'
require 'erb'
module Tilt
# ERB template implementation. See:
# http://www.ruby-doc.org/stdlib/libdoc/erb/rdoc/classes/ERB.html
class ERBTemplate < Template
SUPPORTS_KVARGS = ::ERB.instance_method(:initialize).parameters.assoc(:key) rescue false
def prepare
@freeze_string_literals = !!@options[:freeze]
@outvar = @options[:outvar] || '_erbout'
trim = case @options[:trim]
when false
nil
when nil, true
'<>'
else
@options[:trim]
end
@engine = if SUPPORTS_KVARGS
::ERB.new(@data, trim_mode: trim, eoutvar: @outvar)
# :nocov:
else
::ERB.new(@data, options[:safe], trim, @outvar)
# :nocov:
end
end
def precompiled_template(locals)
source = @engine.src
source
end
def precompiled_preamble(locals)
<<-RUBY
begin
__original_outvar = #{@outvar} if defined?(#{@outvar})
#{super}
RUBY
end
def precompiled_postamble(locals)
<<-RUBY
#{super}
ensure
#{@outvar} = __original_outvar
end
RUBY
end
# ERB generates a line to specify the character coding of the generated
# source in 1.9. Account for this in the line offset.
def precompiled(locals)
source, offset = super
[source, offset + 1]
end
def freeze_string_literals?
@freeze_string_literals
end
end
end
Version data entries
13 entries across 12 versions & 5 rubygems