// Copyright 2017 Google Inc. Use of this source code is governed by an // MIT-style license that can be found in the LICENSE file or at // https://opensource.org/licenses/MIT. /// This library exposes Dart Sass's Node.js API, imported as JavaScript, back /// to Dart. This is kind of convoluted, but it allows us to test the API as it /// will be used in the real world without having to manually write any JS. import 'package:sass/src/node/fiber.dart'; import 'package:sass/src/node/render_options.dart'; import 'package:sass/src/node/render_result.dart'; import 'package:sass/src/util/path.dart'; import 'package:js/js.dart'; export 'package:sass/src/node/error.dart'; export 'package:sass/src/node/importer_result.dart'; export 'package:sass/src/node/render_context.dart'; export 'package:sass/src/node/render_options.dart'; export 'package:sass/src/node/render_result.dart'; /// The Sass module. final sass = _requireSass(p.absolute("build/npm/sass.dart")); /// The Fiber class. final fiber = _requireFiber("fibers"); /// A `null` that's guaranteed to be represented by JavaScript's `undefined` /// value, not by `null`. @JS() external Object get undefined; /// A `null` that's guaranteed to be represented by JavaScript's `null` value, /// not by `undefined`. /// /// We have to use eval here because otherwise dart2js will inline the null /// value and then optimize it away. final Object jsNull = _eval("null"); @JS("eval") external Object _eval(String js); @JS("process.chdir") external void chdir(String directory); @JS("require") external Sass _requireSass(String path); @JS("require") external FiberClass _requireFiber(String path); @JS() class Sass { external RenderResult renderSync(RenderOptions args); external void render(RenderOptions args, void callback(RenderError error, RenderResult result)); external SassTypes get types; } @JS() class RenderError { external String get message; external String get formatted; external int get line; external int get column; external String get file; external int get status; } @JS() class SassTypes { external NodeSassBooleanClass get Boolean; external Function get Color; external Function get List; external Function get Map; external NodeSassNullClass get Null; external Function get Number; external Function get String; } @JS() class NodeSassBooleanClass implements Function { external call(); external get TRUE; external get FALSE; } @JS() class NodeSassBoolean { external bool getValue(); } @JS() class NodeSassColor { external int getR(); external void setR(num value); external int getG(); external void setG(num value); external int getB(); external void setB(num value); external num getA(); external void setA(num value); } @JS() class NodeSassList { external getValue(int index); external void setValue(int index, value); external bool getSeparator(); external void setSeparator(bool value); external int getLength(); } @JS() class NodeSassMap { external getValue(int index); external void setValue(int index, value); external getKey(int index); external void setKey(int index, value); external int getLength(); } @JS() class NodeSassNullClass implements Function { external call(); external get NULL; } @JS() class NodeSassNumber { external num getValue(); external void setValue(int value); external String getUnit(); external void setUnit(String unit); } @JS() class NodeSassString { external String getValue(); external void setValue(String value); }