Allow embedders to specify a custom advisory URI and entrypoint. (#5408)

The Fuchsia embedder wants to specify the application name in the field for the advisory URI. This allows embedders to specify whatever they want.

common/settings.h

@@ -48,6 +48,12 @@ struct Settings {
   bool endless_trace_buffer = false;
   bool enable_dart_profiling = false;
   bool dart_non_checked_mode = false;
+  // Used as the script URI in debug messages. Does not affect how the Dart code
+  // is executed.
+  std::string advisory_script_uri = "main.dart";
+  // Used as the script entrypoint in debug messages. Does not affect how the
+  // Dart code is executed.
+  std::string advisory_script_entrypoint = "main";
 
   // Observatory settings
   bool enable_observatory = false;

runtime/dart_isolate.h

@@ -46,8 +46,8 @@ class DartIsolate : public UIDartState {
       std::unique_ptr<Window> window,
       fml::WeakPtr<GrContext> resource_context,
       fxl::RefPtr<flow::SkiaUnrefQueue> unref_queue,
-      std::string advisory_script_uri = "main.dart",
-      std::string advisory_script_entrypoint = "main",
+      std::string advisory_script_uri,
+      std::string advisory_script_entrypoint,
       Dart_IsolateFlags* flags = nullptr);
 
   DartIsolate(const DartVM* vm,

runtime/dart_isolate_unittests.cc

@@ -36,7 +36,9 @@ TEST_F(DartIsolateTest, RootIsolateCreationAndShutdown) {
       std::move(task_runners),   // task runners
       nullptr,                   // window
       {},                        // resource context
-      nullptr                    // unref qeueue
+      nullptr,                   // unref qeueue
+      "main.dart",               // advisory uri
+      "main"                     // advisory entrypoint
   );
   ASSERT_TRUE(root_isolate);
   ASSERT_EQ(root_isolate->GetPhase(), DartIsolate::Phase::LibrariesSetup);
@@ -62,7 +64,9 @@ TEST_F(DartIsolateTest, IsolateCanAssociateSnapshot) {
       std::move(task_runners),   // task runners
       nullptr,                   // window
       {},                        // resource context
-      nullptr                    // unref qeueue
+      nullptr,                   // unref qeueue
+      "main.dart",               // advisory uri
+      "main"                     // advisory entrypoint
   );
   ASSERT_TRUE(root_isolate);
   ASSERT_EQ(root_isolate->GetPhase(), DartIsolate::Phase::LibrariesSetup);
@@ -91,7 +95,9 @@ TEST_F(DartIsolateTest, CanResolveAndInvokeMethod) {
       std::move(task_runners),   // task runners
       nullptr,                   // window
       {},                        // resource context
-      nullptr                    // unref qeueue
+      nullptr,                   // unref qeueue
+      "main.dart",               // advisory uri
+      "main"                     // advisory entrypoint
   );
   ASSERT_TRUE(root_isolate);
   ASSERT_EQ(root_isolate->GetPhase(), DartIsolate::Phase::LibrariesSetup);

runtime/runtime_controller.cc

@@ -25,7 +25,9 @@ RuntimeController::RuntimeController(
     fxl::RefPtr<DartSnapshot> p_shared_snapshot,
     TaskRunners p_task_runners,
     fml::WeakPtr<GrContext> p_resource_context,
-    fxl::RefPtr<flow::SkiaUnrefQueue> p_unref_queue)
+    fxl::RefPtr<flow::SkiaUnrefQueue> p_unref_queue,
+    std::string p_advisory_script_uri,
+    std::string p_advisory_script_entrypoint)
     : RuntimeController(p_client,
                         p_vm,
                         std::move(p_isolate_snapshot),
@@ -33,6 +35,8 @@ RuntimeController::RuntimeController(
                         std::move(p_task_runners),
                         std::move(p_resource_context),
                         std::move(p_unref_queue),
+                        std::move(p_advisory_script_uri),
+                        std::move(p_advisory_script_entrypoint),
                         WindowData{/* default window data */}) {}
 
 RuntimeController::RuntimeController(
@@ -43,6 +47,8 @@ RuntimeController::RuntimeController(
     TaskRunners p_task_runners,
     fml::WeakPtr<GrContext> p_resource_context,
     fxl::RefPtr<flow::SkiaUnrefQueue> p_unref_queue,
+    std::string p_advisory_script_uri,
+    std::string p_advisory_script_entrypoint,
     WindowData p_window_data)
     : client_(p_client),
       vm_(p_vm),
@@ -51,6 +57,8 @@ RuntimeController::RuntimeController(
       task_runners_(p_task_runners),
       resource_context_(p_resource_context),
       unref_queue_(p_unref_queue),
+      advisory_script_uri_(p_advisory_script_uri),
+      advisory_script_entrypoint_(p_advisory_script_entrypoint),
       window_data_(std::move(p_window_data)),
       root_isolate_(
           DartIsolate::CreateRootIsolate(vm_,
@@ -59,7 +67,9 @@ RuntimeController::RuntimeController(
                                          task_runners_,
                                          std::make_unique<Window>(this),
                                          resource_context_,
-                                         unref_queue_)) {
+                                         unref_queue_,
+                                         p_advisory_script_uri,
+                                         p_advisory_script_entrypoint)) {
   root_isolate_->SetReturnCodeCallback([this](uint32_t code) {
     root_isolate_return_code_ = {true, code};
   });
@@ -96,14 +106,16 @@ bool RuntimeController::IsRootIsolateRunning() const {
 
 std::unique_ptr<RuntimeController> RuntimeController::Clone() const {
   return std::unique_ptr<RuntimeController>(new RuntimeController(
-      client_,            //
-      vm_,                //
-      isolate_snapshot_,  //
-      shared_snapshot_,   //
-      task_runners_,      //
-      resource_context_,  //
-      unref_queue_,       //
-      window_data_        //
+      client_,                      //
+      vm_,                          //
+      isolate_snapshot_,            //
+      shared_snapshot_,             //
+      task_runners_,                //
+      resource_context_,            //
+      unref_queue_,                 //
+      advisory_script_uri_,         //
+      advisory_script_entrypoint_,  //
+      window_data_                  //
       ));
 }
 

runtime/runtime_controller.h

@@ -29,7 +29,9 @@ class RuntimeController final : public WindowClient {
                     fxl::RefPtr<DartSnapshot> shared_snapshot,
                     TaskRunners task_runners,
                     fml::WeakPtr<GrContext> resource_context,
-                    fxl::RefPtr<flow::SkiaUnrefQueue> unref_queue);
+                    fxl::RefPtr<flow::SkiaUnrefQueue> unref_queue,
+                    std::string advisory_script_uri,
+                    std::string advisory_script_entrypoint);
 
   ~RuntimeController();
 
@@ -86,6 +88,8 @@ class RuntimeController final : public WindowClient {
   TaskRunners task_runners_;
   fml::WeakPtr<GrContext> resource_context_;
   fxl::RefPtr<flow::SkiaUnrefQueue> unref_queue_;
+  std::string advisory_script_uri_;
+  std::string advisory_script_entrypoint_;
   WindowData window_data_;
   fml::WeakPtr<DartIsolate> root_isolate_;
   std::pair<bool, uint32_t> root_isolate_return_code_ = {false, 0};
@@ -97,6 +101,8 @@ class RuntimeController final : public WindowClient {
                     TaskRunners task_runners,
                     fml::WeakPtr<GrContext> resource_context,
                     fxl::RefPtr<flow::SkiaUnrefQueue> unref_queue,
+                    std::string advisory_script_uri,
+                    std::string advisory_script_entrypoint,
                     WindowData data);
 
   Window* GetWindowIfAvailable();

shell/common/engine.cc

@@ -55,13 +55,15 @@ Engine::Engine(Delegate& delegate,
   // object as its delegate. The delegate may be called in the constructor and
   // we want to be fully initilazed by that point.
   runtime_controller_ = std::make_unique<blink::RuntimeController>(
-      *this,                        // runtime delegate
-      &vm,                          // VM
-      std::move(isolate_snapshot),  // isolate snapshot
-      std::move(shared_snapshot),   // shared snapshot
-      std::move(task_runners),      // task runners
-      std::move(resource_context),  // resource context
-      std::move(unref_queue)        // skia unref queue
+      *this,                                // runtime delegate
+      &vm,                                  // VM
+      std::move(isolate_snapshot),          // isolate snapshot
+      std::move(shared_snapshot),           // shared snapshot
+      std::move(task_runners),              // task runners
+      std::move(resource_context),          // resource context
+      std::move(unref_queue),               // skia unref queue
+      settings_.advisory_script_uri,        // advisory script uri
+      settings_.advisory_script_entrypoint  // advisory script entrypoint
   );
 }