From 43332fca036dafa4664dcb71f4bd1de3d33c8d89 Mon Sep 17 00:00:00 2001
From: Alexander Rose <alexander.rose@weirdbyte.de>
Date: Tue, 13 Nov 2018 23:58:49 -0800
Subject: [PATCH] added simple deepClone
---
src/mol-util/object.ts | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/src/mol-util/object.ts b/src/mol-util/object.ts
index 2ee047d59..28405be92 100644
--- a/src/mol-util/object.ts
+++ b/src/mol-util/object.ts
@@ -2,6 +2,7 @@
* Copyright (c) 2017 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author David Sehnal <david.sehnal@gmail.com>
+ * @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
const hasOwnProperty = Object.prototype.hasOwnProperty;
@@ -54,4 +55,27 @@ export function shallowMerge<T>(source: T, ...rest: (Partial<T> | undefined)[]):
}
}
return ret;
-}
\ No newline at end of file
+}
+
+/** Simple deep clone for number, boolean, string, null, undefined, object, array */
+export function deepClone<T>(source: T): T {
+ if (null === source || "object" !== typeof source) return source;
+
+ if (source instanceof Array) {
+ const copy: any[] = [];
+ for (let i = 0, len = source.length; i < len; i++) {
+ copy[i] = deepClone(source[i]);
+ }
+ return copy as any as T;
+ }
+
+ if (source instanceof Object) {
+ const copy: { [k: string]: any } = {};
+ for (let k in source) {
+ if (hasOwnProperty.call(source, k)) copy[k] = deepClone(source[k]);
+ }
+ return copy as any as T;
+ }
+
+ throw new Error(`Can't clone, type "${typeof source}" unsupported`);
+ }
\ No newline at end of file
--
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