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

#options ⇒ Object (readonly)

Returns the value of attribute options.



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

def options
  @options
end

#template ⇒ Object (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

#dependencies ⇒ Object

Raises:



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# File 'lib/sassc/engine.rb', line 61

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

#filename ⇒ Object 



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

def filename
  @options[:filename]
end

#render ⇒ Object 



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

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

  result = ::Sass.compile_string(
    @template,
    importer: import_handler.setup(nil),
    load_paths: load_paths,
    syntax: syntax,
    url: file_url,

    charset: @options.fetch(:charset, true),
    source_map: source_map_embed? || !source_map_file.nil?,
    source_map_include_sources: source_map_contents?,
    style: output_style,

    functions: functions_handler.setup(nil, functions: @functions),
    importers: @options.fetch(:importers, []),

    alert_ascii: @options.fetch(:alert_ascii, false),
    alert_color: @options.fetch(:alert_color, nil),
    logger: @options.fetch(:logger, nil),
    quiet_deps: @options.fetch(:quiet_deps, false),
    verbose: @options.fetch(:verbose, false)
  )

  @dependencies = result.loaded_urls
                        .filter { |url| url.start_with?(Protocol::FILE) && url != file_url }
                        .map { |url| URL.file_url_to_path(url) }
  @source_map = post_process_source_map(result.source_map)

  return post_process_css(result.css) unless quiet?
rescue ::Sass::CompileError => e
  line = e.span&.start&.line
  line += 1 unless line.nil?
  url = e.span&.url
  path = (URL.parse(url).route_from(URL.path_to_file_url("#{Dir.pwd}/")) if url&.start_with?(Protocol::FILE))
  raise SyntaxError.new(e.full_message, filename: path, line: line)
end

#source_map ⇒ Object

Raises:



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

def source_map
  raise NotRenderedError unless @source_map
  @source_map
end