From 95e28e4a4ac582840d77ebf20fd585237bd4cc00 Mon Sep 17 00:00:00 2001
From: Anthony Fu <anthonyfu117@hotmail.com>
Date: Mon, 7 Nov 2022 21:03:56 +0800
Subject: [PATCH] fix(generic-spacing): improve cases

---
 packages/eslint-plugin-antfu/src/rules/generic-spacing.test.ts | 3 +++
 packages/eslint-plugin-antfu/src/rules/generic-spacing.ts      | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/eslint-plugin-antfu/src/rules/generic-spacing.test.ts b/packages/eslint-plugin-antfu/src/rules/generic-spacing.test.ts
index dc98507..c3aa2d3 100644
--- a/packages/eslint-plugin-antfu/src/rules/generic-spacing.test.ts
+++ b/packages/eslint-plugin-antfu/src/rules/generic-spacing.test.ts
@@ -20,6 +20,9 @@ type Foo<
   `interface Log {
   <T>(name: T): void
 }`,
+`interface Foo {
+  foo?: <T>(name: T) => void
+}`,
 ]
 const invalids = [
   ['type Foo<T=true> = T', 'type Foo<T = true> = T'],
diff --git a/packages/eslint-plugin-antfu/src/rules/generic-spacing.ts b/packages/eslint-plugin-antfu/src/rules/generic-spacing.ts
index 280d3e7..6df03f9 100644
--- a/packages/eslint-plugin-antfu/src/rules/generic-spacing.ts
+++ b/packages/eslint-plugin-antfu/src/rules/generic-spacing.ts
@@ -23,7 +23,7 @@ export default createEslintRule<Options, MessageIds>({
     const sourceCode = context.getSourceCode()
     return {
       TSTypeParameterDeclaration: (node) => {
-        if (!['TSCallSignatureDeclaration', 'ArrowFunctionExpression'].includes(node.parent.type)) {
+        if (!['TSCallSignatureDeclaration', 'ArrowFunctionExpression', 'TSFunctionType'].includes(node.parent.type)) {
           const pre = sourceCode.text.slice(0, node.range[0])
           const preSpace = pre.match(/(\s+)$/)?.[0]
           // strip space before <T>