Fix for issue 20992 - Allow sending static/top-level functions to other isolates which are spawned …

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 2117 matching lines @@
   // Returns true if this function represents a non implicit closure function.
   bool IsNonImplicitClosureFunction() const {
     return IsClosureFunction() && !IsImplicitClosureFunction();
   }
 
   // Returns true if this function represents an implicit static closure
   // function.
   bool IsImplicitStaticClosureFunction() const {
     return is_static() && IsImplicitClosureFunction();
   }
+  bool static IsImplicitStaticClosureFunction(RawFunction* func);
 
   // Returns true if this function represents an implicit instance closure
   // function.
   bool IsImplicitInstanceClosureFunction() const {
     return !is_static() && IsImplicitClosureFunction();
   }
 
   // Returns true if this function represents a local function.
   bool IsLocalFunction() const {
     return parent_function() != Function::null();
@@ skipping 222 matching lines @@
   bool TestParameterType(TypeTestKind test_kind,
                          intptr_t parameter_position,
                          intptr_t other_parameter_position,
                          const TypeArguments& type_arguments,
                          const Function& other,
                          const TypeArguments& other_type_arguments,
                          Error* bound_error) const;
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(Function, Object);
   friend class Class;
+  friend class SnapshotWriter;
   friend class Parser;  // For set_eval_script.
   // RawFunction::VisitFunctionPointers accesses the private constructor of
   // Function.
   friend class RawFunction;
 };
 
 
 class ClosureData: public Object {
  public:
   static intptr_t InstanceSize() {
@@ skipping 4938 matching lines @@
     closure.StorePointer(FunctionAddr(closure), value.raw());
   }
   static void set_context(const Instance& closure,
                           const Context& value) {
     closure.StorePointer(ContextAddr(closure), value.raw());
   }
   static intptr_t NextFieldOffset() {
     // Indicates this class cannot be extended by dart code.
     return -kWordSize;
   }
+  static RawFunction* GetFunction(RawObject* obj) {
+    return *(reinterpret_cast<RawFunction**>(
+        reinterpret_cast<intptr_t>(obj->ptr()) + function_offset()));
+  }
 
   friend class Class;
+  friend class SnapshotWriter;
 };
 
 
 class Capability : public Instance {
  public:
   uint64_t Id() const { return raw_ptr()->id_; }
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawCapability));
   }
@@ skipping 475 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_