From 986cfc8ff4c39b2c73c452b2eda1082e1c9fe3f2 Mon Sep 17 00:00:00 2001
From: SukkaW <isukkaw@gmail.com>
Date: Thu, 2 May 2024 18:43:25 +0800
Subject: [PATCH] Perf: make readline interface creation faster

---
 Build/lib/fetch-text-by-line.ts | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Build/lib/fetch-text-by-line.ts b/Build/lib/fetch-text-by-line.ts
index aa8e080d..8ce2dcd8 100644
--- a/Build/lib/fetch-text-by-line.ts
+++ b/Build/lib/fetch-text-by-line.ts
@@ -11,9 +11,14 @@ const decoder = new TextDecoder('utf-8');
 async function *createTextLineAsyncIterableFromStreamSource(stream: ReadableStream<Uint8Array>): AsyncIterable<string> {
   let buf = '';
 
-  // @ts-expect-error -- ReadableStream<Uint8Array> should be AsyncIterable<Uint8Array>
-  for await (const chunk of stream) {
-    const chunkStr = decoder.decode(chunk).replaceAll('\r\n', '\n');
+  const reader = stream.getReader();
+
+  while (true) {
+    const res = await reader.read();
+    if (res.done) {
+      break;
+    }
+    const chunkStr = decoder.decode(res.value).replaceAll('\r\n', '\n');
     for (let i = 0, len = chunkStr.length; i < len; i++) {
       const char = chunkStr[i];
       if (char === '\n') {