140 lines
3.7 KiB
Ruby
140 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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require_relative "error"
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module SassC
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class Engine
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OUTPUT_STYLES = %i[
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sass_style_nested
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sass_style_expanded
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sass_style_compact
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sass_style_compressed
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]
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attr_reader :template, :options
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def initialize(template, options = {})
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@template = template
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@options = options
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end
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def render
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return @template.dup if @template.empty?
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data_context = Native.make_data_context(@template)
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context = Native.data_context_get_context(data_context)
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native_options = Native.context_get_options(context)
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Native.option_set_is_indented_syntax_src(native_options, true) if sass?
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Native.option_set_input_path(native_options, filename) if filename
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Native.option_set_precision(native_options, precision) if precision
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Native.option_set_include_path(native_options, load_paths)
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Native.option_set_output_style(native_options, output_style_enum)
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Native.option_set_source_comments(native_options, true) if line_comments?
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Native.option_set_source_map_file(native_options, source_map_file) if source_map_file
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Native.option_set_source_map_embed(native_options, true) if source_map_embed?
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Native.option_set_source_map_contents(native_options, true) if source_map_contents?
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Native.option_set_omit_source_map_url(native_options, true) if omit_source_map_url?
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import_handler.setup(native_options)
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functions_handler.setup(native_options)
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status = Native.compile_data_context(data_context)
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if status != 0
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message = Native.context_get_error_message(context)
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filename = Native.context_get_error_file(context)
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line = Native.context_get_error_line(context)
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raise SyntaxError.new(message, filename: filename, line: line)
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end
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css = Native.context_get_output_string(context)
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@dependencies = Native.context_get_included_files(context)
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@source_map = Native.context_get_source_map_string(context)
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Native.delete_data_context(data_context)
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css.force_encoding(@template.encoding)
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return css unless quiet?
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end
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def dependencies
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raise NotRenderedError unless @dependencies
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Dependency.from_filenames(@dependencies)
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end
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def source_map
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raise NotRenderedError unless @source_map
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@source_map
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end
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def filename
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@options[:filename]
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end
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private
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def quiet?
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@options[:quiet]
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end
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def precision
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@options[:precision]
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end
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def sass?
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@options[:syntax] && @options[:syntax].to_sym == :sass
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end
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def line_comments?
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@options[:line_comments]
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end
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def source_map_embed?
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@options[:source_map_embed]
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end
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def source_map_contents?
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@options[:source_map_contents]
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end
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def omit_source_map_url?
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@options[:omit_source_map_url]
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end
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def source_map_file
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@options[:source_map_file]
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end
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def import_handler
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@import_handler ||= ImportHandler.new(@options)
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end
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def functions_handler
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@functions_handler = FunctionsHandler.new(@options)
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end
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def output_style_enum
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@output_style_enum ||= Native::SassOutputStyle[output_style]
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end
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def output_style
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@output_style ||= begin
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style = @options.fetch(:style, :sass_style_nested).to_s
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style = "sass_style_#{style}" unless style.include?("sass_style_")
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style = style.to_sym
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raise InvalidStyleError unless Native::SassOutputStyle.symbols.include?(style)
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style
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end
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end
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def load_paths
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paths = (@options[:load_paths] || []) + SassC.load_paths
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paths.join(File::PATH_SEPARATOR) unless paths.empty?
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end
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end
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end
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