0.2.0 - Mid migration

web/node_modules/@babel/helper-hoist-variables/lib/index.js

@@ -0,0 +1,53 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = hoistVariables;
+
+var t = require("@babel/types");
+
+const visitor = {
+  Scope(path, state) {
+    if (state.kind === "let") path.skip();
+  },
+
+  FunctionParent(path) {
+    path.skip();
+  },
+
+  VariableDeclaration(path, state) {
+    if (state.kind && path.node.kind !== state.kind) return;
+    const nodes = [];
+    const declarations = path.get("declarations");
+    let firstId;
+
+    for (const declar of declarations) {
+      firstId = declar.node.id;
+
+      if (declar.node.init) {
+        nodes.push(t.expressionStatement(t.assignmentExpression("=", declar.node.id, declar.node.init)));
+      }
+
+      for (const name of Object.keys(declar.getBindingIdentifiers())) {
+        state.emit(t.identifier(name), name, declar.node.init !== null);
+      }
+    }
+
+    if (path.parentPath.isFor({
+      left: path.node
+    })) {
+      path.replaceWith(firstId);
+    } else {
+      path.replaceWithMultiple(nodes);
+    }
+  }
+
+};
+
+function hoistVariables(path, emit, kind = "var") {
+  path.traverse(visitor, {
+    kind,
+    emit
+  });
+}