1 files changed, 127 insertions, 0 deletions
diff --git a/chromium/third_party/node/node_modules/@babel/types/lib/validators/isReferenced.js b/chromium/third_party/node/node_modules/@babel/types/lib/validators/isReferenced.js
new file mode 100644
index 00000000000..dc94a693383
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@babel/types/lib/validators/isReferenced.js
@@ -0,0 +1,127 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isReferenced;
+
+function isReferenced(node, parent, grandparent) {
+  switch (parent.type) {
+    case "MemberExpression":
+    case "OptionalMemberExpression":
+      if (parent.property === node) {
+        return !!parent.computed;
+      }
+
+      return parent.object === node;
+
+    case "JSXMemberExpression":
+      return parent.object === node;
+
+    case "VariableDeclarator":
+      return parent.init === node;
+
+    case "ArrowFunctionExpression":
+      return parent.body === node;
+
+    case "PrivateName":
+      return false;
+
+    case "ClassMethod":
+    case "ClassPrivateMethod":
+    case "ObjectMethod":
+      if (parent.key === node) {
+        return !!parent.computed;
+      }
+
+      return false;
+
+    case "ObjectProperty":
+      if (parent.key === node) {
+        return !!parent.computed;
+      }
+
+      return !grandparent || grandparent.type !== "ObjectPattern";
+
+    case "ClassProperty":
+      if (parent.key === node) {
+        return !!parent.computed;
+      }
+
+      return true;
+
+    case "ClassPrivateProperty":
+      return parent.key !== node;
+
+    case "ClassDeclaration":
+    case "ClassExpression":
+      return parent.superClass === node;
+
+    case "AssignmentExpression":
+      return parent.right === node;
+
+    case "AssignmentPattern":
+      return parent.right === node;
+
+    case "LabeledStatement":
+      return false;
+
+    case "CatchClause":
+      return false;
+
+    case "RestElement":
+      return false;
+
+    case "BreakStatement":
+    case "ContinueStatement":
+      return false;
+
+    case "FunctionDeclaration":
+    case "FunctionExpression":
+      return false;
+
+    case "ExportNamespaceSpecifier":
+    case "ExportDefaultSpecifier":
+      return false;
+
+    case "ExportSpecifier":
+      if (grandparent != null && grandparent.source) {
+        return false;
+      }
+
+      return parent.local === node;
+
+    case "ImportDefaultSpecifier":
+    case "ImportNamespaceSpecifier":
+    case "ImportSpecifier":
+      return false;
+
+    case "ImportAttribute":
+      return false;
+
+    case "JSXAttribute":
+      return false;
+
+    case "ObjectPattern":
+    case "ArrayPattern":
+      return false;
+
+    case "MetaProperty":
+      return false;
+
+    case "ObjectTypeProperty":
+      return parent.key !== node;
+
+    case "TSEnumMember":
+      return parent.id !== node;
+
+    case "TSPropertySignature":
+      if (parent.key === node) {
+        return !!parent.computed;
+      }
+
+      return true;
+  }
+
+  return true;
+}
+\ No newline at end of file