tor-browser

commit 2111459bac1d5a92c83b6c344f34bd8537170693
parent 6bc0995a91e5a29f4e9d299e738085dcd474fda4
Author: Cornelius Emase <corneliuslochipi@gmail.com>
Date:   Tue, 28 Oct 2025 16:17:22 +0000

Bug 1996578 - Add experimental import bytes pref and shell option r=dminor

Added an experimental pref `javascript.options.experimental.import_bytes` (default false)
and a JS shell flag `--enable-import-bytes`

Differential Revision: https://phabricator.services.mozilla.com/D270298

Diffstat:
M
js/src/shell/js.cpp
 | 
4
++++
M
modules/libpref/init/StaticPrefList.yaml
 | 
7
+++++++

2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
@@ -13192,6 +13192,7 @@ bool InitOptionParser(OptionParser& op) {
                         "Disable Explicit Resource Management") ||
       !op.addBoolOption('\0', "enable-temporal", "Enable Temporal") ||
       !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")) {
     return false;
@@ -13269,6 +13270,9 @@ bool SetGlobalOptionsPreJSInit(const OptionParser& op) {
   if (op.getBoolOption("enable-arraybuffer-immutable")) {
     JS::Prefs::setAtStartup_experimental_arraybuffer_immutable(true);
   }
+  if (op.getBoolOption("enable-import-bytes")) {
+    JS::Prefs::setAtStartup_experimental_import_bytes(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
@@ -8978,6 +8978,13 @@
     mirror: always
     set_spidermonkey_pref: startup
 
+  # Experimental support for import bytes in JavaScript.
+- name: javascript.options.experimental.import_bytes
+  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