Bailout if field state changed during background compilation.

runtime/vm/object.h

 // 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.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 475 matching lines @@
   static const LanguageError& branch_offset_error() {
     ASSERT(branch_offset_error_ != NULL);
     return *branch_offset_error_;
   }
 
   static const LanguageError& speculative_inlining_error() {
     ASSERT(speculative_inlining_error_ != NULL);
     return *speculative_inlining_error_;
   }
 
+  static const LanguageError& background_compilation_error() {
+    ASSERT(background_compilation_error_ != NULL);
+    return *background_compilation_error_;
+  }
+
   static const Array& vm_isolate_snapshot_object_table() {
     ASSERT(vm_isolate_snapshot_object_table_ != NULL);
     return *vm_isolate_snapshot_object_table_;
   }
   static const Type& dynamic_type() {
     ASSERT(dynamic_type_ != NULL);
     return *dynamic_type_;
   }
   static const Type& void_type() {
     ASSERT(void_type_ != NULL);
@@ skipping 315 matching lines @@
   static Instance* sentinel_;
   static Instance* transition_sentinel_;
   static Instance* unknown_constant_;
   static Instance* non_constant_;
   static Bool* bool_true_;
   static Bool* bool_false_;
   static Smi* smi_illegal_cid_;
   static LanguageError* snapshot_writer_error_;
   static LanguageError* branch_offset_error_;
   static LanguageError* speculative_inlining_error_;
+  static LanguageError* background_compilation_error_;
   static Array* vm_isolate_snapshot_object_table_;
   static Type* dynamic_type_;
   static Type* void_type_;
 
   friend void ClassTable::Register(const Class& cls);
   friend void RawObject::Validate(Isolate* isolate) const;
   friend class Closure;
   friend class SnapshotReader;
   friend class OneByteString;
   friend class TwoByteString;
@@ skipping 1822 matching lines @@
   // functions.
   int32_t SourceFingerprint() const;
 
   // Return false and report an error if the fingerprint does not match.
   bool CheckSourceFingerprint(const char* prefix, int32_t fp) const;
 
   // Works with map [deopt-id] -> ICData.
   void SaveICDataMap(
       const ZoneGrowableArray<const ICData*>& deopt_id_to_ic_data,
       const Array& edge_counters_array) const;
-  // Uses saved ICData to populate the table 'deopt_id_to_ic_data'. Clone
+  // Uses 'ic_data_array' to populate the table 'deopt_id_to_ic_data'. Clone
   // descriptors if 'clone_descriptors' true.
-  void RestoreICDataMap(
-      ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data,
-      bool clone_descriptors) const;
+  void RestoreICDataMap(ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data,
+                        bool clone_descriptors) const;
 
   RawArray* ic_data_array() const;
   void ClearICDataArray() const;
 
   // Sets deopt reason in all ICData-s with given deopt_id.
   void SetDeoptReasonForAll(intptr_t deopt_id, ICData::DeoptReasonId reason);
 
   void set_modifier(RawFunction::AsyncModifier value) const;
 
   // static: Considered during class-side or top-level resolution rather than
@@ skipping 5729 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_