WIP - add extractor, generate snippet_data

node_modules/@hapi/hoek/lib/utils.js

@@ -0,0 +1,54 @@
+'use strict';
+
+const Reach = require('./reach');
+
+
+const internals = {};
+
+
+exports.keys = function (obj, options = {}) {
+
+    return options.symbols !== false ? Reflect.ownKeys(obj) : Object.getOwnPropertyNames(obj);  // Defaults to true
+};
+
+
+exports.store = function (source, keys) {
+
+    const storage = new Map();
+    for (let i = 0; i < keys.length; ++i) {
+        const key = keys[i];
+        const value = Reach(source, key);
+        if (typeof value === 'object' ||
+            typeof value === 'function') {
+
+            storage.set(key, value);
+            internals.reachSet(source, key, undefined);
+        }
+    }
+
+    return storage;
+};
+
+
+exports.restore = function (copy, source, storage) {
+
+    for (const [key, value] of storage) {
+        internals.reachSet(copy, key, value);
+        internals.reachSet(source, key, value);
+    }
+};
+
+
+internals.reachSet = function (obj, key, value) {
+
+    const path = Array.isArray(key) ? key : key.split('.');
+    let ref = obj;
+    for (let i = 0; i < path.length; ++i) {
+        const segment = path[i];
+        if (i + 1 === path.length) {
+            ref[segment] = value;
+        }
+
+        ref = ref[segment];
+    }
+};