src: allow embedder control of code generation policy

PR-URL: #46368 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
nodejs · Feb 18, 2023 · e77d538 · e77d538
1 parent aef57cd
commit e77d538
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/src/api/environment.cc b/src/api/environment.cc
@@ -265,8 +265,16 @@ void SetIsolateMiscHandlers(v8::Isolate* isolate, const IsolateSettings& s) {
   auto* allow_wasm_codegen_cb = s.allow_wasm_code_generation_callback ?
     s.allow_wasm_code_generation_callback : AllowWasmCodeGenerationCallback;
   isolate->SetAllowWasmCodeGenerationCallback(allow_wasm_codegen_cb);
+
+  auto* modify_code_generation_from_strings_callback =
+      ModifyCodeGenerationFromStrings;
+  if (s.flags & ALLOW_MODIFY_CODE_GENERATION_FROM_STRINGS_CALLBACK &&
+      s.modify_code_generation_from_strings_callback) {
+    modify_code_generation_from_strings_callback =
+        s.modify_code_generation_from_strings_callback;
+  }
   isolate->SetModifyCodeGenerationFromStringsCallback(
-      ModifyCodeGenerationFromStrings);
+      modify_code_generation_from_strings_callback);
 
   Mutex::ScopedLock lock(node::per_process::cli_options_mutex);
   if (per_process::cli_options->get_per_isolate_options()

diff --git a/src/node.h b/src/node.h
@@ -453,7 +453,8 @@ enum IsolateSettingsFlags {
   MESSAGE_LISTENER_WITH_ERROR_LEVEL = 1 << 0,
   DETAILED_SOURCE_POSITIONS_FOR_PROFILING = 1 << 1,
   SHOULD_NOT_SET_PROMISE_REJECTION_CALLBACK = 1 << 2,
-  SHOULD_NOT_SET_PREPARE_STACK_TRACE_CALLBACK = 1 << 3
+  SHOULD_NOT_SET_PREPARE_STACK_TRACE_CALLBACK = 1 << 3,
+  ALLOW_MODIFY_CODE_GENERATION_FROM_STRINGS_CALLBACK = 1 << 4,
 };
 
 struct IsolateSettings {
@@ -471,6 +472,8 @@ struct IsolateSettings {
   v8::PromiseRejectCallback promise_reject_callback = nullptr;
   v8::AllowWasmCodeGenerationCallback
       allow_wasm_code_generation_callback = nullptr;
+  v8::ModifyCodeGenerationFromStringsCallback2
+      modify_code_generation_from_strings_callback = nullptr;
 };
 
 // Overriding IsolateSettings may produce unexpected behavior