From 2d9041f769efcee953cbb112c97f4cfdc4cca753 Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Fri, 5 Jul 2019 19:40:56 -0400
Subject: [PATCH] escape `@` sigils in block comments (#3173)

---
 src/compiler/compile/render_dom/Block.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/compile/render_dom/Block.ts b/src/compiler/compile/render_dom/Block.ts
index d7986e167b..59beae1a39 100644
--- a/src/compiler/compile/render_dom/Block.ts
+++ b/src/compiler/compile/render_dom/Block.ts
@@ -2,6 +2,7 @@ import CodeBuilder from '../utils/CodeBuilder';
 import deindent from '../utils/deindent';
 import Renderer from './Renderer';
 import Wrapper from './wrappers/shared/Wrapper';
+import { escape } from '../utils/stringify';
 
 export interface BlockOptions {
 	parent?: Block;
@@ -408,7 +409,7 @@ export default class Block {
 		const local_key = this.key && this.get_unique_name('key');
 
 		return deindent`
-			${this.comment && `// ${this.comment}`}
+			${this.comment && `// ${escape(this.comment, { only_escape_at_symbol: true })}`}
 			function ${this.name}(${this.key ? `${local_key}, ` : ''}ctx) {
 				${this.get_contents(local_key)}
 			}