tor-browser

commit 6c2810f8e125f987d4790623f8bf837a8e3b74da
parent c528ae17f04fdcfa150e5c0ae819bbd15a8d6e3e
Author: Meg Ford <meg387@gmail.com>
Date:   Mon,  3 Nov 2025 17:28:37 +0000

Bug 1997187 - Add preference and shell option for `iterator chunking` proposal. r=dminor

Differential Revision: https://phabricator.services.mozilla.com/D270972

Diffstat:
M
js/src/shell/js.cpp
 | 
7
++++++-
M
modules/libpref/init/StaticPrefList.yaml
 | 
7
+++++++

2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
@@ -13209,7 +13209,9 @@ bool InitOptionParser(OptionParser& op) {
       !op.addBoolOption('\0', "enable-upsert", "Enable Upsert proposal") ||
       !op.addBoolOption('\0', "enable-import-bytes", "Enable import bytes") ||
       !op.addBoolOption('\0', "enable-arraybuffer-immutable",
-                        "Enable immutable ArrayBuffers")) {
+                        "Enable immutable ArrayBuffers") ||
+      !op.addBoolOption('\0', "enable-iterator-chunking",
+                        "Enable Iterator Chunking")) {
     return false;
   }
 
@@ -13288,6 +13290,9 @@ bool SetGlobalOptionsPreJSInit(const OptionParser& op) {
   if (op.getBoolOption("enable-import-bytes")) {
     JS::Prefs::setAtStartup_experimental_import_bytes(true);
   }
+  if (op.getBoolOption("enable-iterator-chunking")) {
+    JS::Prefs::setAtStartup_experimental_iterator_chunking(true);
+  }
 #endif
 #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT
   if (op.getBoolOption("enable-explicit-resource-management")) {
diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
@@ -8990,6 +8990,13 @@
   mirror: always
   set_spidermonkey_pref: startup
 
+ # Experimental support for Iterator Chunking in JavaScript.
+- name: javascript.options.experimental.iterator_chunking
+  type: bool
+  value: false
+  mirror: always
+  set_spidermonkey_pref: startup
+
 #endif  // NIGHTLY_BUILD
 
 # Whether to Baseline-compile self-hosted functions the first time they are