WIP: Entry realm stack in Blink

third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp b/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
index 1d0dcc9ba52c15c969d8f3984cb46af2aefaa951..17936962a989c0df50eb9bdee54f143dd6391178 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp
@@ -543,6 +543,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::runCompiledScript(
     probe::ExecuteScript probe(context);
     ThreadDebugger::willExecuteScript(isolate,
                                       script->GetUnboundScript()->GetId());
+    V8PerIsolateData::EntryRealmScope entryRealmScope(
+        V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
     result = script->Run(isolate->GetCurrentContext());
     ThreadDebugger::didExecuteScript(isolate);
   }
@@ -566,6 +568,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::compileAndRunInternalScript(
   TRACE_EVENT0("v8", "v8.run");
   v8::MicrotasksScope microtasksScope(isolate,
                                       v8::MicrotasksScope::kDoNotRunMicrotasks);
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
   v8::MaybeLocal<v8::Value> result = script->Run(isolate->GetCurrentContext());
   CHECK(!isolate->IsDead());
   return result;
@@ -577,6 +581,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::runCompiledInternalScript(
   TRACE_EVENT0("v8", "v8.run");
   v8::MicrotasksScope microtasksScope(isolate,
                                       v8::MicrotasksScope::kDoNotRunMicrotasks);
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
   v8::MaybeLocal<v8::Value> result = script->Run(isolate->GetCurrentContext());
   CHECK(!isolate->IsDead());
   return result;
@@ -613,6 +619,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::callAsConstructor(
                                       v8::MicrotasksScope::kRunMicrotasks);
   probe::CallFunction probe(context, function, depth);
   ThreadDebugger::willExecuteScript(isolate, function->ScriptId());
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
   v8::MaybeLocal<v8::Value> result =
       constructor->CallAsConstructor(isolate->GetCurrentContext(), argc, argv);
   CHECK(!isolate->IsDead());
@@ -652,6 +660,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::callFunction(
                                       v8::MicrotasksScope::kRunMicrotasks);
   probe::CallFunction probe(context, function, depth);
   ThreadDebugger::willExecuteScript(isolate, function->ScriptId());
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
   v8::MaybeLocal<v8::Value> result =
       function->Call(isolate->GetCurrentContext(), receiver, argc, args);
   CHECK(!isolate->IsDead());
@@ -670,6 +680,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::callInternalFunction(
   CHECK(!ThreadState::current()->isWrapperTracingForbidden());
   v8::MicrotasksScope microtasksScope(isolate,
                                       v8::MicrotasksScope::kDoNotRunMicrotasks);
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), isolate->GetCurrentContext());
   v8::MaybeLocal<v8::Value> result =
       function->Call(isolate->GetCurrentContext(), receiver, argc, args);
   CHECK(!isolate->IsDead());
@@ -683,6 +695,8 @@ v8::MaybeLocal<v8::Value> V8ScriptRunner::evaluateModule(
   TRACE_EVENT0("v8", "v8.evaluateModule");
   v8::MicrotasksScope microtasksScope(isolate,
                                       v8::MicrotasksScope::kRunMicrotasks);
+  V8PerIsolateData::EntryRealmScope entryRealmScope(
+      V8PerIsolateData::from(isolate), context);
   return module->Evaluate(context);
 }