From 4693383e568ff6aa3f3538e9c8879a504fbab905 Mon Sep 17 00:00:00 2001
From: KazariEX <1364035137@qq.com>
Date: Mon, 23 Dec 2024 13:22:10 +0800
Subject: [PATCH] fix(language-core): map `v-slot` correctly to report error
 when missing default slot

---
 .../language-core/lib/codegen/template/element.ts  | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/packages/language-core/lib/codegen/template/element.ts b/packages/language-core/lib/codegen/template/element.ts
index 9fbeccca69..ad08c45cf1 100644
--- a/packages/language-core/lib/codegen/template/element.ts
+++ b/packages/language-core/lib/codegen/template/element.ts
@@ -495,24 +495,16 @@ function* generateComponentSlot(
 			false,
 			true
 		);
-		yield ': __VLS_thisSlot';
 	}
 	else {
-		yield `default: `;
 		yield* wrapWith(
 			slotDir.loc.start.offset,
-			slotDir.loc.start.offset + (
-				slotDir.loc.source.startsWith('#')
-					? '#'.length
-					: slotDir.loc.source.startsWith('v-slot:')
-						? 'v-slot:'.length
-						: 0
-			),
+			slotDir.loc.start.offset + (slotDir.rawName?.length ?? 0),
 			ctx.codeFeatures.withoutHighlightAndCompletion,
-			`__VLS_thisSlot`
+			`default`
 		);
 	}
-	yield `} = ${componentCtxVar}.slots!${endOfLine}`;
+	yield `: __VLS_thisSlot } = ${componentCtxVar}.slots!${endOfLine}`;
 
 	if (slotDir?.exp?.type === CompilerDOM.NodeTypes.SIMPLE_EXPRESSION) {
 		const slotAst = createTsAst(options.ts, slotDir, `(${slotDir.exp.content}) => {}`);