initial commit

node_modules/postcss-merge-longhand/dist/lib/mergeRules.js

@@ -0,0 +1,61 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = mergeRules;
+
+var _hasAllProps = require('./hasAllProps');
+
+var _hasAllProps2 = _interopRequireDefault(_hasAllProps);
+
+var _getDecls = require('./getDecls');
+
+var _getDecls2 = _interopRequireDefault(_getDecls);
+
+var _getRules = require('./getRules');
+
+var _getRules2 = _interopRequireDefault(_getRules);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function isConflictingProp(propA, propB) {
+    if (!propB.prop || propB.important !== propA.important) {
+        return;
+    }
+
+    const parts = propA.prop.split('-');
+
+    return parts.some(() => {
+        parts.pop();
+
+        return parts.join('-') === propB.prop;
+    });
+}
+
+function hasConflicts(match, nodes) {
+    const firstNode = Math.min.apply(null, match.map(n => nodes.indexOf(n)));
+    const lastNode = Math.max.apply(null, match.map(n => nodes.indexOf(n)));
+    const between = nodes.slice(firstNode + 1, lastNode);
+
+    return match.some(a => between.some(b => isConflictingProp(a, b)));
+}
+
+function mergeRules(rule, properties, callback) {
+    let decls = (0, _getDecls2.default)(rule, properties);
+
+    while (decls.length) {
+        const last = decls[decls.length - 1];
+        const props = decls.filter(node => node.important === last.important);
+        const rules = (0, _getRules2.default)(props, properties);
+
+        if ((0, _hasAllProps2.default)(rules, ...properties) && !hasConflicts(rules, rule.nodes)) {
+            if (callback(rules, last, props)) {
+                decls = decls.filter(node => !~rules.indexOf(node));
+            }
+        }
+
+        decls = decls.filter(node => node !== last);
+    }
+}
+module.exports = exports['default'];