--- /dev/null
+'use strict';
+
+function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+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; }
+
+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) : _defaults(subClass, superClass); }
+
+var OldValue = require('../old-value');
+var Value = require('../value');
+
+function _regexp(name) {
+ return new RegExp('(^|[\\s,(])(' + name + '($|[\\s),]))', 'gi');
+}
+
+var Intrinsic = function (_Value) {
+ _inherits(Intrinsic, _Value);
+
+ function Intrinsic() {
+ _classCallCheck(this, Intrinsic);
+
+ return _possibleConstructorReturn(this, _Value.apply(this, arguments));
+ }
+
+ Intrinsic.prototype.regexp = function regexp() {
+ if (!this.regexpCache) this.regexpCache = _regexp(this.name);
+ return this.regexpCache;
+ };
+
+ Intrinsic.prototype.isStretch = function isStretch() {
+ return this.name === 'stretch' || this.name === 'fill' || this.name === 'fill-available';
+ };
+
+ Intrinsic.prototype.replace = function replace(string, prefix) {
+ if (prefix === '-moz-' && this.isStretch()) {
+ return string.replace(this.regexp(), '$1-moz-available$3');
+ } else if (prefix === '-webkit-' && this.isStretch()) {
+ return string.replace(this.regexp(), '$1-webkit-fill-available$3');
+ } else {
+ return _Value.prototype.replace.call(this, string, prefix);
+ }
+ };
+
+ Intrinsic.prototype.old = function old(prefix) {
+ var prefixed = prefix + this.name;
+ if (this.isStretch()) {
+ if (prefix === '-moz-') {
+ prefixed = '-moz-available';
+ } else if (prefix === '-webkit-') {
+ prefixed = '-webkit-fill-available';
+ }
+ }
+ return new OldValue(this.name, prefixed, prefixed, _regexp(prefixed));
+ };
+
+ Intrinsic.prototype.add = function add(decl, prefix) {
+ if (decl.prop.indexOf('grid') !== -1 && prefix !== '-webkit-') {
+ return undefined;
+ }
+ return _Value.prototype.add.call(this, decl, prefix);
+ };
+
+ return Intrinsic;
+}(Value);
+
+Object.defineProperty(Intrinsic, 'names', {
+ enumerable: true,
+ writable: true,
+ value: ['max-content', 'min-content', 'fit-content', 'fill', 'fill-available', 'stretch']
+});
+
+
+module.exports = Intrinsic;
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