From c9a874d2041cd866493a3e8ff4d5c3ac423d8cac Mon Sep 17 00:00:00 2001
From: Maxime Guerreiro <punkeel@me.com>
Date: Thu, 2 Apr 2020 18:29:05 +0100
Subject: [PATCH] LZString.decompress* returns null for invalid inputs (#43585)

---
 types/lz-string/index.d.ts         | 10 +++++-----
 types/lz-string/lz-string-tests.ts |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/types/lz-string/index.d.ts b/types/lz-string/index.d.ts
index 9cff45952e..d8bfd5567a 100644
--- a/types/lz-string/index.d.ts
+++ b/types/lz-string/index.d.ts
@@ -26,7 +26,7 @@ declare namespace LZString {
          *
          * @param compressed A string obtained from a call to compress().
          */
-        decompress(compressed: string): string;
+        decompress(compressed: string): null | string;
 
         /**
          * Compresses input string producing an instance of a "valid" UTF-16 string,
@@ -41,7 +41,7 @@ declare namespace LZString {
          *
          * @param compressed A string obtained from a call to compressToUTF16().
          */
-        decompressFromUTF16(compressed: string): string;
+        decompressFromUTF16(compressed: string): null | string;
 
         /**
          * Compresses input string producing an instance of a ASCII UTF-16 string,
@@ -58,7 +58,7 @@ declare namespace LZString {
          *
          * @param compressed A string obtained from a call to compressToBase64().
          */
-        decompressFromBase64(compressed: string): string;
+        decompressFromBase64(compressed: string): null | string;
 
         /**
          * produces ASCII strings representing the original string encoded in Base64 with a few
@@ -74,7 +74,7 @@ declare namespace LZString {
          *
          * @param compressed A string obtained from a call to compressToEncodedURIComponent().
          */
-        decompressFromEncodedURIComponent(compressed: string): string;
+        decompressFromEncodedURIComponent(compressed: string): null | string;
 
         /**
          * produces an uint8Array
@@ -88,6 +88,6 @@ declare namespace LZString {
          *
          * @param compressed A string obtained from a call to compressToUint8Array().
          */
-        decompressFromUint8Array(compressed: Uint8Array): string;
+        decompressFromUint8Array(compressed: Uint8Array): null | string;
     }
 }
diff --git a/types/lz-string/lz-string-tests.ts b/types/lz-string/lz-string-tests.ts
index 0ad913265d..85f48368bd 100644
--- a/types/lz-string/lz-string-tests.ts
+++ b/types/lz-string/lz-string-tests.ts
@@ -1,6 +1,6 @@
 const input = "Someting to compress";
 let encoded: string;
-let decoded: string;
+let decoded: null | string;
 let encodedU8: Uint8Array;
 
 encoded = LZString.compress(input);