Merge pull request microsoft#14373 from DLehenbauer/fixSpreadUsage

mhegazy · web-flow · commit 97965574edad · 2017-02-28T16:37:04.000-08:00
Fix TypeError when JSDoc.tags is undefined
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
@@ -1554,7 +1554,10 @@ namespace ts {
                     }
                 }
                 else {
-                    result.push(...filter((doc as JSDoc).tags, tag => tag.kind === kind));
+                    const tags = (doc as JSDoc).tags;
+                    if (tags) {
+                        result.push(...filter(tags, tag => tag.kind === kind));
+                    }
                 }
             }
             return result;

Original file line number	Diff line number	Diff line change
`@@ -1554,7 +1554,10 @@ namespace ts {`
`1554`	`1554`	`}`
`1555`	`1555`	`}`
`1556`	`1556`	`else {`
`1557`		`- result.push(...filter((doc as JSDoc).tags, tag => tag.kind === kind));`
	`1557`	`+ const tags = (doc as JSDoc).tags;`
	`1558`	`+ if (tags) {`
	`1559`	`+ result.push(...filter(tags, tag => tag.kind === kind));`
	`1560`	`+ }`
`1558`	`1561`	`}`
`1559`	`1562`	`}`
`1560`	`1563`	`return result;`