Updating NPM dependencies

node_modules/@babel/helpers/lib/index.js

@@ -32,6 +32,8 @@ function makePath(path) {
   return parts.reverse().join(".");
 }
 
+let fileClass = undefined;
+
 function getHelperMetadata(file) {
   const globals = new Set();
   const localBindingNames = new Set();
@@ -41,7 +43,7 @@ function getHelperMetadata(file) {
   const exportBindingAssignments = [];
   const importPaths = [];
   const importBindingsReferences = [];
-  (0, _traverse.default)(file, {
+  const dependencyVisitor = {
     ImportDeclaration(child) {
       const name = child.node.source.value;
 
@@ -85,8 +87,8 @@ function getHelperMetadata(file) {
       child.skip();
     }
 
-  });
-  (0, _traverse.default)(file, {
+  };
+  const referenceVisitor = {
     Program(path) {
       const bindings = path.scope.getAllBindings();
       Object.keys(bindings).forEach(name => {
@@ -117,12 +119,14 @@ function getHelperMetadata(file) {
 
       const binding = child.scope.getBinding(exportName);
 
-      if (binding && binding.scope.path.isProgram()) {
+      if (binding == null ? void 0 : binding.scope.path.isProgram()) {
         exportBindingAssignments.push(makePath(child));
       }
     }
 
-  });
+  };
+  (0, _traverse.default)(file.ast, dependencyVisitor, file.scope);
+  (0, _traverse.default)(file.ast, referenceVisitor, file.scope);
   if (!exportPath) throw new Error("Helpers must default-export something.");
   exportBindingAssignments.reverse();
   return {
@@ -170,7 +174,7 @@ function permuteHelperAST(file, metadata, id, localBindings, getDependency) {
     toRename[exportName] = id.name;
   }
 
-  (0, _traverse.default)(file, {
+  const visitor = {
     Program(path) {
       const exp = path.get(exportPath);
       const imps = importPaths.map(p => path.get(p));
@@ -212,7 +216,8 @@ function permuteHelperAST(file, metadata, id, localBindings, getDependency) {
       path.stop();
     }
 
-  });
+  };
+  (0, _traverse.default)(file.ast, visitor, file.scope);
 }
 
 const helperData = Object.create(null);
@@ -229,7 +234,17 @@ function loadHelper(name) {
     }
 
     const fn = () => {
-      return t.file(helper.ast());
+      const file = {
+        ast: t.file(helper.ast())
+      };
+
+      if (fileClass) {
+        return new fileClass({
+          filename: `babel-helper://${name}`
+        }, file);
+      }
+
+      return file;
     };
 
     const metadata = getHelperMetadata(fn());
@@ -238,7 +253,7 @@ function loadHelper(name) {
         const file = fn();
         permuteHelperAST(file, metadata, id, localBindings, getDependency);
         return {
-          nodes: file.program.body,
+          nodes: file.ast.program.body,
           globals: metadata.globals
         };
       },
@@ -266,7 +281,11 @@ function getDependencies(name) {
   return Array.from(loadHelper(name).dependencies.values());
 }
 
-function ensure(name) {
+function ensure(name, newFileClass) {
+  if (!fileClass) {
+    fileClass = newFileClass;
+  }
+
   loadHelper(name);
 }