check property name

onishi-kohei · onishi-kohei · commit 70353171ed01 · 2022-12-29T15:54:49.000+09:00
diff --git a/changelog_unreleased/typescript/14042.md b/changelog_unreleased/typescript/14042.md
@@ -6,14 +6,17 @@
 a as (typeof node.children)[number]
 a as (typeof node.children)[]
 a as ((typeof node.children)[number])[]
+a as number[(typeof node.children)]
 
 // Prettier stable
 a as typeof node.children[number];
 a as typeof node.children[];
 a as typeof node.children[number][];
+a as number[typeof node.children];
 
 // Prettier main
 a as (typeof node.children)[number];
 a as (typeof node.children)[];
 a as (typeof node.children)[number][];
+a as number[typeof node.children];
 ```
diff --git a/src/language-js/needs-parens.js b/src/language-js/needs-parens.js
@@ -458,8 +458,8 @@ function needsParens(path, options) {
       );
     case "TSTypeQuery":
       return (
-        name === "objectType" &&
-        (parent.type === "TSIndexedAccessType" || parent.type === "TSArrayType")
+        (name === "objectType" && parent.type === "TSIndexedAccessType") ||
+        (name === "elementType" && parent.type === "TSArrayType")
       );
     case "ArrayTypeAnnotation":
       return parent.type === "NullableTypeAnnotation";
diff --git a/tests/format/typescript/typeof/__snapshots__/jsfmt.spec.js.snap b/tests/format/typescript/typeof/__snapshots__/jsfmt.spec.js.snap
@@ -9,11 +9,13 @@ printWidth: 80
 a as (typeof node.children)[number]
 a as (typeof node.children)[]
 a as ((typeof node.children)[number])[]
+a as number[(typeof node.children)]
 
 =====================================output=====================================
 a as (typeof node.children)[number];
 a as (typeof node.children)[];
 a as (typeof node.children)[number][];
+a as number[typeof node.children];
 
 ================================================================================
 `;
diff --git a/tests/format/typescript/typeof/typeof.ts b/tests/format/typescript/typeof/typeof.ts
@@ -1,3 +1,4 @@
 a as (typeof node.children)[number]
 a as (typeof node.children)[]
 a as ((typeof node.children)[number])[]
+a as number[(typeof node.children)]
