Initial Save

node_modules/graphql/jsutils/Path.js.flow

@@ -0,0 +1,26 @@
+// @flow strict
+
+export type Path = {|
+  +prev: Path | void,
+  +key: string | number,
+|};
+
+/**
+ * Given a Path and a key, return a new Path containing the new key.
+ */
+export function addPath(prev: $ReadOnly<Path> | void, key: string | number) {
+  return { prev, key };
+}
+
+/**
+ * Given a Path, return an Array of the path keys.
+ */
+export function pathToArray(path: ?$ReadOnly<Path>): Array<string | number> {
+  const flattened = [];
+  let curr = path;
+  while (curr) {
+    flattened.push(curr.key);
+    curr = curr.prev;
+  }
+  return flattened.reverse();
+}