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require 'erb'
module Sprockets
class ERBProcessor
# Public: Return singleton instance with default options.
#
# Returns ERBProcessor object.
def self.instance
@instance ||= new
end
def self.call(input)
instance.call(input)
end
def initialize(&block)
@block = block
end
def call(input)
engine = ::ERB.new(input[:data], nil, '<>')
context = input[:environment].context_class.new(input)
klass = (class << context; self; end)
klass.class_eval(&@block) if @block
engine.def_method(klass, :_evaluate_template, input[:filename])
data = context._evaluate_template
context.metadata.merge(data: data)
end
end
end
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