Merge pull request #155 from microsoft/fixSpreadArrayForNonConcatSpreadables

DanielRosenwasser · web-flow · commit ffb69384dc9b · 2021-08-11T14:54:02.000-07:00
Fix __spreadArray for non-concat-spreadables
diff --git a/tslib.es6.js b/tslib.es6.js
@@ -169,7 +169,7 @@ export function __spreadArray(to, from, pack) {
             ar[i] = from[i];
         }
     }
-    return to.concat(ar || from);
+    return to.concat(ar || Array.prototype.slice.call(from));
 }
 
 export function __await(v) {
diff --git a/tslib.js b/tslib.js
@@ -210,7 +210,7 @@ var __createBinding;
                 ar[i] = from[i];
             }
         }
-        return to.concat(ar || from);
+        return to.concat(ar || Array.prototype.slice.call(from));
     };
 
     __await = function (v) {

Original file line number	Diff line number	Diff line change
`@@ -169,7 +169,7 @@ export function __spreadArray(to, from, pack) {`
`169`	`169`	`ar[i] = from[i];`
`170`	`170`	`}`
`171`	`171`	`}`
`172`		`- return to.concat(ar \|\| from);`
	`172`	`+ return to.concat(ar \|\| Array.prototype.slice.call(from));`
`173`	`173`	`}`
`174`	`174`
`175`	`175`	`export function __await(v) {`
Original file line number	Diff line number	Diff line change
`@@ -210,7 +210,7 @@ var __createBinding;`
`210`	`210`	`ar[i] = from[i];`
`211`	`211`	`}`
`212`	`212`	`}`
`213`		`- return to.concat(ar \|\| from);`
	`213`	`+ return to.concat(ar \|\| Array.prototype.slice.call(from));`
`214`	`214`	`};`
`215`	`215`
`216`	`216`	`__await = function (v) {`