fix(no-whitespace-before-property): detect whitespace in TSIndexedAccessType with parens (#1099)

Author: 9romise

packages/eslint-plugin/rules/no-whitespace-before-property/no-whitespace-before-property._ts_.test.ts

@@ -12,6 +12,8 @@ run<RuleOptions, MessageIds>({
     `type Foo = A['B']`,
     `type Foo = A.B`,
     `type Foo = import(A).B`,
+    // https://github.com/eslint-stylistic/eslint-stylistic/issues/1097
+    `type Test = ( typeof arr )[ number ];`,
   ],
 
   invalid: [
@@ -30,5 +32,11 @@ run<RuleOptions, MessageIds>({
       output: `type Foo = import(A).B`,
       errors: [{ messageId: 'unexpectedWhitespace', data: { propName: 'B' } }],
     },
+    // https://github.com/eslint-stylistic/eslint-stylistic/issues/1097
+    {
+      code: `type Test = ( typeof arr ) [ number ];`,
+      output: `type Test = ( typeof arr )[ number ];`,
+      errors: [{ messageId: 'unexpectedWhitespace', data: { propName: 'number' } }],
+    },
   ],
 })

packages/eslint-plugin/rules/no-whitespace-before-property/no-whitespace-before-property.ts

@@ -99,8 +99,8 @@ export default createRule<RuleOptions, MessageIds>({
         })
       },
       TSIndexedAccessType(node) {
-        const leftToken = node.objectType
-        const rightToken = sourceCode.getTokenBefore(node.indexType)!
+        const rightToken = sourceCode.getTokenBefore(node.indexType, isOpeningBracketToken)!
+        const leftToken = sourceCode.getTokenBefore(rightToken)!
 
         if (!sourceCode.isSpaceBetween(leftToken, rightToken))
           return