Class: SassC::FunctionsHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/sassc/functions_handler.rb

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ FunctionsHandler

Returns a new instance of FunctionsHandler.



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# File 'lib/sassc/functions_handler.rb', line 5

def initialize(options)
  @options = options
end

Instance Method Details

#setup(_native_options, functions: Script::Functions) ⇒ Object 



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# File 'lib/sassc/functions_handler.rb', line 9

def setup(_native_options, functions: Script::Functions)
  @callbacks = {}

  functions_wrapper = Class.new do
    attr_accessor :options

    include functions
  end.new
  functions_wrapper.options = @options

  Script.custom_functions(functions: functions).each do |custom_function|
    callback = lambda do |native_argument_list|
      function_arguments = arguments_from_native_list(native_argument_list)
      begin
        result = functions_wrapper.send(custom_function, *function_arguments)
      rescue StandardError
        raise ::Sass::ScriptError, "Error: error in C function #{custom_function}"
      end
      to_native_value(result)
    rescue StandardError => e
      warn "[SassC::FunctionsHandler] #{e.cause.message}"
      raise e
    end

    @callbacks[Script.formatted_function_name(custom_function, functions: functions)] = callback
  end

  @callbacks
end