From 6928aaca06d8bcc37d17ce715ed04221d6eccc72 Mon Sep 17 00:00:00 2001
From: venus <jhabrcetl@gmail.com>
Date: Fri, 23 May 2025 13:58:42 +0200
Subject: [PATCH] feat: enable TS autocomplete for Svelte HTML element
 definitions (#15972)

Covers #15971.

adds autocomplete support to SvelteHTMLElements while preserving its functionality that key can be any string using string & {} TS trick.
---
 packages/svelte/elements.d.ts    | 2 +-
 packages/svelte/svelte-html.d.ts | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/packages/svelte/elements.d.ts b/packages/svelte/elements.d.ts
index 237e96c699..71f28b4f97 100644
--- a/packages/svelte/elements.d.ts
+++ b/packages/svelte/elements.d.ts
@@ -2066,7 +2066,7 @@ export interface SvelteHTMLElements {
 		failed?: import('svelte').Snippet<[error: unknown, reset: () => void]>;
 	};
 
-	[name: string]: { [name: string]: any };
+	[name: string & {}]: { [name: string]: any };
 }
 
 export type ClassValue = string | import('clsx').ClassArray | import('clsx').ClassDictionary;
diff --git a/packages/svelte/svelte-html.d.ts b/packages/svelte/svelte-html.d.ts
index 5042eaa4b8..6e37cc93e8 100644
--- a/packages/svelte/svelte-html.d.ts
+++ b/packages/svelte/svelte-html.d.ts
@@ -8,7 +8,7 @@ import * as svelteElements from './elements.js';
 /**
  * @internal do not use
  */
-type HTMLProps<Property extends string, Override> = Omit<
+type HTMLProps<Property extends keyof svelteElements.SvelteHTMLElements, Override> = Omit<
 	import('./elements.js').SvelteHTMLElements[Property],
 	keyof Override
 > &
@@ -250,7 +250,7 @@ declare global {
 			};
 			// don't type svelte:options, it would override the types in svelte/elements and it isn't extendable anyway
 
-			[name: string]: { [name: string]: any };
+			[name: string & {}]: { [name: string]: any };
 		}
 	}
 }