Load deferred classes eagerly when generating script snapshots

runtime/vm/snapshot_test.cc

 // Copyright (c) 2012, 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 "platform/globals.h"
 
 #include "include/dart_debugger_api.h"
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_message.h"
 #include "vm/dart_api_state.h"
 #include "vm/flags.h"
 #include "vm/snapshot.h"
 #include "vm/symbols.h"
 #include "vm/unicode.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, enable_type_checks);
+DECLARE_FLAG(bool, load_deferred_eagerly);
 
 // Check if serialized and deserialized objects are equal.
 static bool Equals(const Object& expected, const Object& actual) {
   if (expected.IsNull()) {
     return actual.IsNull();
   }
   if (expected.IsSmi()) {
     if (actual.IsSmi()) {
       return expected.raw() == actual.raw();
     }
@@ skipping 1193 matching lines @@
   uint8_t* buffer;
   intptr_t size;
   intptr_t vm_isolate_snapshot_size;
   uint8_t* isolate_snapshot = NULL;
   intptr_t isolate_snapshot_size;
   uint8_t* full_snapshot = NULL;
   uint8_t* script_snapshot = NULL;
   intptr_t expected_num_libs;
   intptr_t actual_num_libs;
 
+  bool saved_load_deferred_eagerly_mode = FLAG_load_deferred_eagerly;
+  FLAG_load_deferred_eagerly = true;
+
   {
     // Start an Isolate, and create a full snapshot of it.
     TestIsolateScope __test_isolate__;
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Write out the script snapshot.
     result = Dart_CreateSnapshot(NULL,
                                  &vm_isolate_snapshot_size,
                                  &isolate_snapshot,
                                  &isolate_snapshot_size);
     EXPECT_VALID(result);
     full_snapshot = reinterpret_cast<uint8_t*>(malloc(isolate_snapshot_size));
     memmove(full_snapshot, isolate_snapshot, isolate_snapshot_size);
     Dart_ExitScope();
   }
 
+  FLAG_load_deferred_eagerly = saved_load_deferred_eagerly_mode;
   {
     // Create an Isolate using the full snapshot, load a script and create
     // a script snapshot of the script.
     TestCase::CreateTestIsolateFromSnapshot(full_snapshot);
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Load the library.
     Dart_Handle import_lib = Dart_LoadLibrary(NewString("dart_import_lib"),
                                               NewString(kLibScriptChars),
                                               0, 0);
@@ skipping 60 matching lines @@
 
   Dart_Handle result;
   uint8_t* buffer;
   intptr_t size;
   intptr_t vm_isolate_snapshot_size;
   uint8_t* isolate_snapshot = NULL;
   intptr_t isolate_snapshot_size;
   uint8_t* full_snapshot = NULL;
   uint8_t* script_snapshot = NULL;
 
+  bool saved_load_deferred_eagerly_mode = FLAG_load_deferred_eagerly;
+  FLAG_load_deferred_eagerly = true;
   {
     // Start an Isolate, and create a full snapshot of it.
     TestIsolateScope __test_isolate__;
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Write out the script snapshot.
     result = Dart_CreateSnapshot(NULL,
                                  &vm_isolate_snapshot_size,
                                  &isolate_snapshot,
                                  &isolate_snapshot_size);
@@ skipping 25 matching lines @@
     // Now Create an Isolate using the full snapshot and load the
     // script snapshot created above and execute it.
     TestCase::CreateTestIsolateFromSnapshot(full_snapshot);
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Load the test library from the snapshot.
     EXPECT(script_snapshot != NULL);
     result = Dart_LoadScriptFromSnapshot(script_snapshot, size);
     EXPECT_VALID(result);
   }
+
+  FLAG_load_deferred_eagerly = saved_load_deferred_eagerly_mode;
   Dart_ShutdownIsolate();
   free(full_snapshot);
   free(script_snapshot);
 }
 
 
 UNIT_TEST_CASE(ScriptSnapshot2) {
   // The snapshot of this library is always created in production mode, but
   // loaded and executed in both production and checked modes.
   // This test verifies that type information is still contained in the snapshot
@@ skipping 19 matching lines @@
 
   uint8_t* buffer;
   intptr_t size;
   intptr_t vm_isolate_snapshot_size;
   uint8_t* isolate_snapshot = NULL;
   intptr_t isolate_snapshot_size;
   uint8_t* full_snapshot = NULL;
   uint8_t* script_snapshot = NULL;
 
   // Force creation of snapshot in production mode.
-  bool saved_mode = FLAG_enable_type_checks;
+  bool saved_enable_type_checks_mode = FLAG_enable_type_checks;
   FLAG_enable_type_checks = false;
+  bool saved_load_deferred_eagerly_mode = FLAG_load_deferred_eagerly;
+  FLAG_load_deferred_eagerly = true;
 
   {
     // Start an Isolate, and create a full snapshot of it.
     TestIsolateScope __test_isolate__;
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Write out the script snapshot.
     result = Dart_CreateSnapshot(NULL,
                                  &vm_isolate_snapshot_size,
                                  &isolate_snapshot,
@@ skipping 27 matching lines @@
     // Write out the script snapshot.
     result = Dart_CreateScriptSnapshot(&buffer, &size);
     EXPECT_VALID(result);
     script_snapshot = reinterpret_cast<uint8_t*>(malloc(size));
     memmove(script_snapshot, buffer, size);
     Dart_ExitScope();
     Dart_ShutdownIsolate();
   }
 
   // Continue in originally saved mode.
-  FLAG_enable_type_checks = saved_mode;
+  FLAG_enable_type_checks = saved_enable_type_checks_mode;
+  FLAG_load_deferred_eagerly = saved_load_deferred_eagerly_mode;
 
   {
     // Now Create an Isolate using the full snapshot and load the
     // script snapshot created above and execute it.
     TestCase::CreateTestIsolateFromSnapshot(full_snapshot);
     Dart_EnterScope();  // Start a Dart API scope for invoking API functions.
 
     // Load the test library from the snapshot.
     EXPECT(script_snapshot != NULL);
     Dart_Handle lib = Dart_LoadScriptFromSnapshot(script_snapshot, size);
     EXPECT_VALID(lib);
 
     // Invoke the test_s function.
     result = Dart_Invoke(lib, NewString("test_s"), 0, NULL);
-    EXPECT(Dart_IsError(result) == saved_mode);
+    EXPECT(Dart_IsError(result) == saved_enable_type_checks_mode);
 
     // Invoke the test_i function.
     result = Dart_Invoke(lib, NewString("test_i"), 0, NULL);
-    EXPECT(Dart_IsError(result) == saved_mode);
+    EXPECT(Dart_IsError(result) == saved_enable_type_checks_mode);
 
     // Invoke the test_b function.
     result = Dart_Invoke(lib, NewString("test_b"), 0, NULL);
-    EXPECT(Dart_IsError(result) == saved_mode);
+    EXPECT(Dart_IsError(result) == saved_enable_type_checks_mode);
   }
   Dart_ShutdownIsolate();
   free(full_snapshot);
   free(script_snapshot);
 }
 
 
 TEST_CASE(IntArrayMessage) {
   StackZone zone(Isolate::Current());
   uint8_t* buffer = NULL;
@@ skipping 1295 matching lines @@
   StackZone zone(Isolate::Current());
   uint8_t* buffer;
   MessageWriter writer(&buffer, &zone_allocator, true);
   writer.WriteInlinedObjectHeader(kOmittedObjectId);
   // For performance, we'd like single-byte headers when ids are omitted.
   // If this starts failing, consider renumbering the snapshot ids.
   EXPECT_EQ(1, writer.BytesWritten());
 }
 
 }  // namespace dart