From 8c822293baa20d052e25afdbb2f267c1962d86a5 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <DanielRosenwasser@users.noreply.github.com>
Date: Tue, 2 Jul 2024 01:08:58 +0000
Subject: [PATCH] Use a bitmask to avoid unnecessary calls to `contains` in
 `indexOfAnyCharCode`.

---
 src/compiler/core.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index e40d8826ca6..7a4adf2de97 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -230,8 +230,14 @@ export function contains<T>(array: readonly T[] | undefined, value: T, equalityC
 
 /** @internal */
 export function indexOfAnyCharCode(text: string, charCodes: readonly number[], start?: number): number {
+    let bitMask = 0;
+    for (let i = 0; i < charCodes.length; i++) {
+        bitMask |= charCodes[i];
+    }
+
     for (let i = start ?? 0; i < text.length; i++) {
-        if (contains(charCodes, text.charCodeAt(i))) {
+        const current = text.charCodeAt(i);
+        if ((current & bitMask) === current && contains(charCodes, current)) {
             return i;
         }
     }