From ea49b21c7ca32824b5fd8a03b21f6a366abb593a Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Mon, 8 Nov 2021 18:37:03 +0800
Subject: [PATCH] `prefer-export-from`: Ignore variables with type (#1580)

---
 rules/prefer-export-from.js |  1 +
 test/prefer-export-from.mjs | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/rules/prefer-export-from.js b/rules/prefer-export-from.js
index db03914d9f..cbe47ae16d 100644
--- a/rules/prefer-export-from.js
+++ b/rules/prefer-export-from.js
@@ -157,6 +157,7 @@ function getExported(identifier, context) {
 			if (
 				parent.init === identifier
 				&& parent.id.type === 'Identifier'
+				&& !parent.id.typeAnnotation
 				&& parent.parent.type === 'VariableDeclaration'
 				&& parent.parent.kind === 'const'
 				&& parent.parent.declarations.length === 1
diff --git a/test/prefer-export-from.mjs b/test/prefer-export-from.mjs
index fee5beb222..79adad3bb9 100644
--- a/test/prefer-export-from.mjs
+++ b/test/prefer-export-from.mjs
@@ -285,3 +285,16 @@ test.snapshot({
 		`,
 	],
 });
+
+test.typescript({
+	valid: [
+		// #1579
+		outdent`
+			import {useDispatch as reduxUseDispatch} from 'react-redux'
+			type MyDispatchType = Dispatch<MyActions>
+
+			export const useDispatch: () => DispatchAllActions = reduxUseDispatch
+		`,
+	],
+	invalid: [],
+});