refactor: replace regexp-tree by regexpu

packages/babel-plugin-transform-named-capturing-groups-regex/package.json

@@ -11,10 +11,14 @@
     "regexp",
     "regular expressions"
   ],
-  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-named-capturing-groups-regex",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/babel/babel.git",
+    "directory": "packages/babel-plugin-transform-named-capturing-groups-regex"
+  },
   "bugs": "https://github.com/babel/babel/issues",
   "dependencies": {
-    "regexp-tree": "^0.1.13"
+    "regexpu-core": "^4.6.0"
   },
   "peerDependencies": {
     "@babel/core": "^7.0.0"

packages/babel-plugin-transform-named-capturing-groups-regex/src/index.js

@@ -1,4 +1,4 @@
-import regexpTree from "regexp-tree";
+import rewritePattern from "regexpu-core";
 
 export default function({ types: t }, options) {
   const { runtime = true } = options;
@@ -19,16 +19,18 @@ export default function({ types: t }, options) {
           return;
         }
 
-        const result = regexpTree.compatTranspile(node.extra.raw, [
-          "namedCapturingGroups",
-        ]);
-        const { namedCapturingGroups } = result.getExtra();
+        const namedCapturingGroups = {};
+        const result = rewritePattern(node.pattern, node.flags, {
+          namedGroup: true,
+          //todo: consider refactor `lookbehind` true as modular plugin
+          lookbehind: true,
+          onNamedGroup(name, index) {
+            namedCapturingGroups[name] = index;
+          },
+        });
 
-        if (
-          namedCapturingGroups &&
-          Object.keys(namedCapturingGroups).length > 0
-        ) {
-          node.pattern = result.getSource();
+        if (Object.keys(namedCapturingGroups).length > 0) {
+          node.pattern = result;
 
           if (runtime && !isRegExpTest(path)) {
             path.replaceWith(

packages/babel-plugin-transform-named-capturing-groups-regex/test/fixtures/syntax/escape-no-unicode-flag/options.json

@@ -1,3 +1,3 @@
 {
-  "throws": "invalid group Unicode name \"\\u{41}\", use `u` flag."
+  "throws": "Invalid escape sequence at position 3"
 }