declaration.js 7.1KB

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  1. 'use strict';
  2. exports.__esModule = true;
  3. var _node = require('./node');
  4. var _node2 = _interopRequireDefault(_node);
  5. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  6. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  7. function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  8. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  9. /**
  10. * Represents a CSS declaration.
  11. *
  12. * @extends Node
  13. *
  14. * @example
  15. * const root = postcss.parse('a { color: black }');
  16. * const decl = root.first.first;
  17. * decl.type //=> 'decl'
  18. * decl.toString() //=> ' color: black'
  19. */
  20. var Declaration = function (_Node) {
  21. _inherits(Declaration, _Node);
  22. function Declaration(defaults) {
  23. _classCallCheck(this, Declaration);
  24. var _this = _possibleConstructorReturn(this, _Node.call(this, defaults));
  25. _this.type = 'decl';
  26. return _this;
  27. }
  28. /**
  29. * @memberof Declaration#
  30. * @member {string} prop - the declaration’s property name
  31. *
  32. * @example
  33. * const root = postcss.parse('a { color: black }');
  34. * const decl = root.first.first;
  35. * decl.prop //=> 'color'
  36. */
  37. /**
  38. * @memberof Declaration#
  39. * @member {string} value - the declaration’s value
  40. *
  41. * @example
  42. * const root = postcss.parse('a { color: black }');
  43. * const decl = root.first.first;
  44. * decl.value //=> 'black'
  45. */
  46. /**
  47. * @memberof Declaration#
  48. * @member {boolean} important - `true` if the declaration
  49. * has an !important annotation.
  50. *
  51. * @example
  52. * const root = postcss.parse('a { color: black !important; color: red }');
  53. * root.first.first.important //=> true
  54. * root.first.last.important //=> undefined
  55. */
  56. /**
  57. * @memberof Declaration#
  58. * @member {object} raws - Information to generate byte-to-byte equal
  59. * node string as it was in the origin input.
  60. *
  61. * Every parser saves its own properties,
  62. * but the default CSS parser uses:
  63. *
  64. * * `before`: the space symbols before the node. It also stores `*`
  65. * and `_` symbols before the declaration (IE hack).
  66. * * `between`: the symbols between the property and value
  67. * for declarations.
  68. * * `important`: the content of the important statement,
  69. * if it is not just `!important`.
  70. *
  71. * PostCSS cleans declaration from comments and extra spaces,
  72. * but it stores origin content in raws properties.
  73. * As such, if you don’t change a declaration’s value,
  74. * PostCSS will use the raw value with comments.
  75. *
  76. * @example
  77. * const root = postcss.parse('a {\n color:black\n}')
  78. * root.first.first.raws //=> { before: '\n ', between: ':' }
  79. */
  80. return Declaration;
  81. }(_node2.default);
  82. exports.default = Declaration;
  83. module.exports = exports['default'];
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