Class: SassC::Engine

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

Constant Summary collapse

OUTPUT_STYLES =
%i[
  sass_style_nested
  sass_style_expanded
  sass_style_compact
  sass_style_compressed
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template, options = {}) ⇒ Engine

Returns a new instance of Engine.


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# File 'lib/sassc/engine.rb', line 16

def initialize(template, options = {})
  @template = template
  @options = options
  @functions = options.fetch(:functions, Script::Functions)
end

Instance Attribute Details

#optionsObject (readonly)

Returns the value of attribute options


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# File 'lib/sassc/engine.rb', line 14

def options
  @options
end

#templateObject (readonly)

Returns the value of attribute template


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# File 'lib/sassc/engine.rb', line 14

def template
  @template
end

Instance Method Details

#dependenciesObject

Raises:


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# File 'lib/sassc/engine.rb', line 66

def dependencies
  raise NotRenderedError unless @dependencies
  Dependency.from_filenames(@dependencies)
end

#filenameObject


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# File 'lib/sassc/engine.rb', line 76

def filename
  @options[:filename]
end

#renderObject


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# File 'lib/sassc/engine.rb', line 22

def render
  return @template.dup if @template.empty?

  data_context = Native.make_data_context(@template)
  context = Native.data_context_get_context(data_context)
  native_options = Native.context_get_options(context)

  Native.option_set_is_indented_syntax_src(native_options, true) if sass?
  Native.option_set_input_path(native_options, filename) if filename
  Native.option_set_precision(native_options, precision) if precision
  Native.option_set_include_path(native_options, load_paths)
  Native.option_set_output_style(native_options, output_style_enum)
  Native.option_set_source_comments(native_options, true) if line_comments?
  Native.option_set_source_map_file(native_options, source_map_file) if source_map_file
  Native.option_set_source_map_embed(native_options, true) if source_map_embed?
  Native.option_set_source_map_contents(native_options, true) if source_map_contents?
  Native.option_set_omit_source_map_url(native_options, true) if omit_source_map_url?

  import_handler.setup(native_options)
  functions_handler.setup(native_options, functions: @functions)

  status = Native.compile_data_context(data_context)

  if status != 0
    message = Native.context_get_error_message(context)
    filename = Native.context_get_error_file(context)
    line = Native.context_get_error_line(context)

    raise SyntaxError.new(message, filename: filename, line: line)
  end

  css = Native.context_get_output_string(context)

  @dependencies = Native.context_get_included_files(context)
  @source_map   = Native.context_get_source_map_string(context)

  css.force_encoding(@template.encoding)
  @source_map.force_encoding(@template.encoding) if @source_map.is_a?(String)

  return css unless quiet?
ensure
  Native.delete_data_context(data_context) if data_context
end

#source_mapObject

Raises:


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# File 'lib/sassc/engine.rb', line 71

def source_map
  raise NotRenderedError unless @source_map
  @source_map
end