up n_m

node_modules/@mdx-js/mdx/lib/util/estree-util-create.js

@@ -0,0 +1,30 @@
+/**
+ * @typedef {import('estree-jsx').Node} Node
+ */
+
+// Fix to show references to above types in VS Code.
+''
+
+/**
+ * @param {Readonly<Node>} from
+ *   Node to take from.
+ * @param {Node} to
+ *   Node to add to.
+ * @returns {undefined}
+ *   Nothing.
+ */
+export function create(from, to) {
+  /** @type {Array<keyof Node>} */
+  // @ts-expect-error: `start`, `end`, `comments` are custom Acorn fields.
+  const fields = ['start', 'end', 'loc', 'range', 'comments']
+  let index = -1
+
+  while (++index < fields.length) {
+    const field = fields[index]
+
+    if (field in from) {
+      // @ts-expect-error: assume they’re settable.
+      to[field] = from[field]
+    }
+  }
+}