From f184332c09c851faac50f598d29ebe4426e05464 Mon Sep 17 00:00:00 2001
From: Nayeem Rahman <nayeemrmn99@gmail.com>
Date: Sat, 9 May 2020 13:34:47 +0100
Subject: BREAKING(std): reorganization (#5087)

* Prepend underscores to private modules
* Remove collectUint8Arrays() It would be a misuse of Deno.iter()'s result.
* Move std/_util/async.ts to std/async
* Move std/util/sha*.ts to std/hash
---
 std/_util/deep_assign.ts | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 std/_util/deep_assign.ts

(limited to 'std/_util/deep_assign.ts')

diff --git a/std/_util/deep_assign.ts b/std/_util/deep_assign.ts
new file mode 100644
index 000000000..9034d89bd
--- /dev/null
+++ b/std/_util/deep_assign.ts
@@ -0,0 +1,34 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { assert } from "../testing/asserts.ts";
+
+export function deepAssign(
+  target: Record<string, unknown>,
+  ...sources: object[]
+): object | undefined {
+  for (let i = 0; i < sources.length; i++) {
+    const source = sources[i];
+    if (!source || typeof source !== `object`) {
+      return;
+    }
+    Object.entries(source).forEach(([key, value]: [string, unknown]): void => {
+      if (value instanceof Date) {
+        target[key] = new Date(value);
+        return;
+      }
+      if (!value || typeof value !== `object`) {
+        target[key] = value;
+        return;
+      }
+      if (Array.isArray(value)) {
+        target[key] = [];
+      }
+      // value is an Object
+      if (typeof target[key] !== `object` || !target[key]) {
+        target[key] = {};
+      }
+      assert(value);
+      deepAssign(target[key] as Record<string, unknown>, value);
+    });
+  }
+  return target;
+}
-- 
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