Keeps returning undefined with no default type roots

arcanis · arcanis · commit d3bb23b52bbd · 2019-11-19T16:13:38.000-05:00
diff --git a/src/compiler/moduleNameResolver.ts b/src/compiler/moduleNameResolver.ts
@@ -306,7 +306,9 @@ namespace ts {
         const nmTypes = getNodeModulesTypeRoots(currentDirectory, host);
         const pnpTypes = getPnpTypeRoots(currentDirectory);
 
-        return [...nmTypes, ...pnpTypes];
+        if (nmTypes.length > 0 || pnpTypes.length > 0) {
+            return [...nmTypes, ...pnpTypes];
+        }
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -306,7 +306,9 @@ namespace ts {`
`306`	`306`	`const nmTypes = getNodeModulesTypeRoots(currentDirectory, host);`
`307`	`307`	`const pnpTypes = getPnpTypeRoots(currentDirectory);`
`308`	`308`
`309`		`- return [...nmTypes, ...pnpTypes];`
	`309`	`+ if (nmTypes.length > 0 \|\| pnpTypes.length > 0) {`
	`310`	`+ return [...nmTypes, ...pnpTypes];`
	`311`	`+ }`
`310`	`312`	`}`
`311`	`313`
`312`	`314`	`/**`