From b7d011777e5d492eedeabd7cc7fddbe1324d4b62 Mon Sep 17 00:00:00 2001
From: Oliver Joseph Ash <oliverjash@gmail.com>
Date: Thu, 3 Feb 2022 18:13:05 +0000
Subject: [PATCH] "Convert parameters to destructured object": enable for
 functions with just one parameter (#46945)

* "Convert parameters to destructured object": enable for functions with just one parameter

Fixes https://github.com/microsoft/TypeScript/issues/41753

* Add test
---
 .../refactors/convertParamsToDestructuredObject.ts  |  2 +-
 ...cturedObject_arrowFunctionWithSingleParameter.ts | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 tests/cases/fourslash/refactorConvertParamsToDestructuredObject_arrowFunctionWithSingleParameter.ts

diff --git a/src/services/refactors/convertParamsToDestructuredObject.ts b/src/services/refactors/convertParamsToDestructuredObject.ts
index 784cefda23b..5fcd96a8018 100644
--- a/src/services/refactors/convertParamsToDestructuredObject.ts
+++ b/src/services/refactors/convertParamsToDestructuredObject.ts
@@ -1,7 +1,7 @@
 /* @internal */
 namespace ts.refactor.convertParamsToDestructuredObject {
     const refactorName = "Convert parameters to destructured object";
-    const minimumParameterLength = 2;
+    const minimumParameterLength = 1;
     const refactorDescription = getLocaleSpecificMessage(Diagnostics.Convert_parameters_to_destructured_object);
 
     const toDestructuredAction = {
diff --git a/tests/cases/fourslash/refactorConvertParamsToDestructuredObject_arrowFunctionWithSingleParameter.ts b/tests/cases/fourslash/refactorConvertParamsToDestructuredObject_arrowFunctionWithSingleParameter.ts
new file mode 100644
index 00000000000..5c130b3b0e9
--- /dev/null
+++ b/tests/cases/fourslash/refactorConvertParamsToDestructuredObject_arrowFunctionWithSingleParameter.ts
@@ -0,0 +1,13 @@
+/// <reference path='fourslash.ts' />
+
+////const foo = /*a*/(a: number)/*b*/ => { };
+////foo(1);
+
+goTo.select("a", "b");
+edit.applyRefactor({
+    refactorName: "Convert parameters to destructured object",
+    actionName: "Convert parameters to destructured object",
+    actionDescription: "Convert parameters to destructured object",
+    newContent: `const foo = ({ a }: { a: number; }) => { };
+foo({ a: 1 });`,
+});