perf(ext,runtime): remove using `SafeArrayIterator` from `for-of` (#17255)

1 files changed, 12 insertions, 7 deletions

diff --git a/ext/web/09_file.js b/ext/web/09_file.js
index 92de61e1f..f789a24d2 100644
--- a/ext/web/09_file.js
+++ b/ext/web/09_file.js
@@ -26,7 +26,6 @@
     MathMin,
     ObjectPrototypeIsPrototypeOf,
     RegExpPrototypeTest,
-    SafeArrayIterator,
     StringPrototypeCharAt,
     StringPrototypeToLowerCase,
     StringPrototypeSlice,
@@ -95,8 +94,8 @@
 
   /** @param {(BlobReference | Blob)[]} parts */
   async function* toIterator(parts) {
-    for (const part of new SafeArrayIterator(parts)) {
-      yield* part.stream();
+    for (let i = 0; i < parts.length; ++i) {
+      yield* parts[i].stream();
     }
   }
 
@@ -111,7 +110,8 @@
     /** @type {(BlobReference|Blob)[]} */
     const processedParts = [];
     let size = 0;
-    for (const element of new SafeArrayIterator(parts)) {
+    for (let i = 0; i < parts.length; ++i) {
+      const element = parts[i];
       if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, element)) {
         const chunk = new Uint8Array(ArrayBufferPrototypeSlice(element, 0));
         ArrayPrototypePush(processedParts, BlobReference.fromUint8Array(chunk));
@@ -159,7 +159,9 @@
    * @returns {string[]}
    */
   function getParts(blob, bag = []) {
-    for (const part of new SafeArrayIterator(blob[_parts])) {
+    const parts = blob[_parts];
+    for (let i = 0; i < parts.length; ++i) {
+      const part = parts[i];
       if (ObjectPrototypeIsPrototypeOf(BlobPrototype, part)) {
         getParts(part, bag);
       } else {
@@ -276,7 +278,9 @@
       const blobParts = [];
       let added = 0;
 
-      for (const part of new SafeArrayIterator(this[_parts])) {
+      const parts = this[_parts];
+      for (let i = 0; i < parts.length; ++i) {
+        const part = parts[i];
         // don't add the overflow to new blobParts
         if (added >= span) {
           // Could maybe be possible to remove variable `added`
@@ -600,7 +604,8 @@
     const parts = [];
     let totalSize = 0;
 
-    for (const { uuid, size } of new SafeArrayIterator(blobData.parts)) {
+    for (let i = 0; i < blobData.parts.length; ++i) {
+      const { uuid, size } = blobData.parts[i];
       ArrayPrototypePush(parts, new BlobReference(uuid, size));
       totalSize += size;
     }