VM: [Kernel] Fix bootstraping when Kernel isolate is used.

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "lib/stacktrace.h"
@@ skipping 5989 matching lines @@
 
 DART_EXPORT bool Dart_KernelIsolateIsRunning() {
 #ifdef DART_PRECOMPILED_RUNTIME
   return false;
 #else
   return KernelIsolate::IsRunning();
 #endif
 }
 
 
 DART_EXPORT Dart_Port Dart_ServiceWaitForKernelPort() {

[hausner, 2017/01/24 00:50:55]

This seems to be dead code now.

[Vyacheslav Egorov (Google), 2017/01/30 19:34:13]

Done.

 #ifdef DART_PRECOMPILED_RUNTIME
   return ILLEGAL_PORT;
 #else
   return KernelIsolate::WaitForKernelPort();
 #endif
 }
 
+
 DART_EXPORT Dart_Port Dart_KernelPort() {

[hausner, 2017/01/24 00:50:55]

ditto.

[Vyacheslav Egorov (Google), 2017/01/30 19:34:13]

Acknowledged.

 #ifdef DART_PRECOMPILED_RUNTIME
   return false;
 #else
   return KernelIsolate::KernelPort();
 #endif
 }
 
 
+DART_EXPORT Dart_KernelCompilationResult
+Dart_CompileToKernel(const char* script_uri) {
+#ifdef DART_PRECOMPILED_RUNTIME
+  return false;

[kustermann, 2017/01/30 12:14:25]

The return type is Dart_KernelCompilationResult which is a struct:

+typedef struct {
+  Dart_KernelCompilationStatus status;
+  char* error;
+
+  uint8_t* kernel;
+  intptr_t kernel_size;
+} Dart_KernelCompilationResult;
+

How does this even compile?

[Vyacheslav Egorov (Google), 2017/01/30 19:34:13]

Done.

+#else
+  return KernelIsolate::CompileToKernel(script_uri);
+#endif
+}
+
 // --- Service support ---
 
 DART_EXPORT bool Dart_IsServiceIsolate(Dart_Isolate isolate) {
   Isolate* iso = reinterpret_cast<Isolate*>(isolate);
   return ServiceIsolate::IsServiceIsolate(iso);
 }
 
 
 DART_EXPORT Dart_Port Dart_ServiceWaitForLoadPort() {
   return ServiceIsolate::WaitForLoadPort();
@@ skipping 776 matching lines @@
 }
 
 
 DART_EXPORT void Dart_DumpNativeStackTrace(void* context) {
 #ifndef PRODUCT
   Profiler::DumpStackTrace(context);
 #endif
 }
 
 }  // namespace dart