From 9886775758f5ad58b64a8ec332627e1376431cd7 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Sun, 27 Jul 2025 10:16:57 -0400
Subject: [PATCH] chore: remove `parser.template_untrimmed`

---
 .changeset/shiny-berries-call.md                          | 5 +++++
 packages/svelte/src/compiler/phases/1-parse/index.js      | 7 -------
 .../svelte/src/compiler/phases/1-parse/state/element.js   | 8 --------
 3 files changed, 5 insertions(+), 15 deletions(-)
 create mode 100644 .changeset/shiny-berries-call.md

diff --git a/.changeset/shiny-berries-call.md b/.changeset/shiny-berries-call.md
new file mode 100644
index 000000000000..adc62b3cd017
--- /dev/null
+++ b/.changeset/shiny-berries-call.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+chore: remove `parser.template_untrimmed`
diff --git a/packages/svelte/src/compiler/phases/1-parse/index.js b/packages/svelte/src/compiler/phases/1-parse/index.js
index 77cc2bf3fa43..f5e0693b311f 100644
--- a/packages/svelte/src/compiler/phases/1-parse/index.js
+++ b/packages/svelte/src/compiler/phases/1-parse/index.js
@@ -23,12 +23,6 @@ export class Parser {
 	 */
 	template;
 
-	/**
-	 * @readonly
-	 * @type {string}
-	 */
-	template_untrimmed;
-
 	/**
 	 * Whether or not we're in loose parsing mode, in which
 	 * case we try to continue parsing as much as possible
@@ -67,7 +61,6 @@ export class Parser {
 		}
 
 		this.loose = loose;
-		this.template_untrimmed = template;
 		this.template = template.trimEnd();
 
 		let match_lang;
diff --git a/packages/svelte/src/compiler/phases/1-parse/state/element.js b/packages/svelte/src/compiler/phases/1-parse/state/element.js
index 87332f647d86..ed1b047d5556 100644
--- a/packages/svelte/src/compiler/phases/1-parse/state/element.js
+++ b/packages/svelte/src/compiler/phases/1-parse/state/element.js
@@ -370,14 +370,6 @@ export default function element(parser) {
 				// ... or we're followed by whitespace, for example near the end of the template,
 				// which we want to take in so that language tools has more room to work with
 				parser.allow_whitespace();
-				if (parser.index === parser.template.length) {
-					while (
-						parser.index < parser.template_untrimmed.length &&
-						regex_whitespace.test(parser.template_untrimmed[parser.index])
-					) {
-						parser.index++;
-					}
-				}
 			}
 		}
 	}