From e68ed628b8abcb3352fb3979f7cccb20edb2c912 Mon Sep 17 00:00:00 2001
From: overlookmotel <557937+overlookmotel@users.noreply.github.com>
Date: Wed, 31 Jul 2024 03:32:59 +0000
Subject: [PATCH] refactor(parser): convert lexer byte handler for `|` to a
 single match (#4575)

Same as #4573 and #4574. Convert lexer's byte handler for `|` to a single match rather than multiple `next_ascii_byte_eq` calls.
---
 crates/oxc_parser/src/lexer/byte_handlers.rs | 23 ++++++++++++--------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/crates/oxc_parser/src/lexer/byte_handlers.rs b/crates/oxc_parser/src/lexer/byte_handlers.rs
index 1e9a420b6..b7102a89f 100644
--- a/crates/oxc_parser/src/lexer/byte_handlers.rs
+++ b/crates/oxc_parser/src/lexer/byte_handlers.rs
@@ -495,16 +495,21 @@ ascii_byte_handler!(BEO(lexer) {
 // |
 ascii_byte_handler!(PIP(lexer) {
     lexer.consume_char();
-    if lexer.next_ascii_byte_eq(b'|') {
-        if lexer.next_ascii_byte_eq(b'=') {
-            Kind::Pipe2Eq
-        } else {
-            Kind::Pipe2
+
+    match lexer.peek_byte() {
+        Some(b'|') => {
+            lexer.consume_char();
+            if lexer.next_ascii_byte_eq(b'=') {
+                Kind::Pipe2Eq
+            } else {
+                Kind::Pipe2
+            }
         }
-    } else if lexer.next_ascii_byte_eq(b'=') {
-        Kind::PipeEq
-    } else {
-        Kind::Pipe
+        Some(b'=') => {
+            lexer.consume_char();
+            Kind::PipeEq
+        }
+        _ => Kind::Pipe
     }
 });