handles-inl.h revision a7e24c173cf37484693b9abb38e494fa7bd7baeb 
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28
29#ifndef V8_HANDLES_INL_H_
30#define V8_HANDLES_INL_H_
31
32#include "apiutils.h"
33#include "handles.h"
34#include "api.h"
35
36namespace v8 {
37namespace internal {
38
39template<class T>
40Handle<T>::Handle(T* obj) {
41  ASSERT(!obj->IsFailure());
42  location_ = HandleScope::CreateHandle(obj);
43}
44
45
46template <class T>
47inline T* Handle<T>::operator*() const {
48  ASSERT(location_ != NULL);
49  ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue);
50  return *location_;
51}
52
53
54#ifdef DEBUG
55inline NoHandleAllocation::NoHandleAllocation() {
56  v8::ImplementationUtilities::HandleScopeData* current =
57      v8::ImplementationUtilities::CurrentHandleScope();
58  extensions_ = current->extensions;
59  // Shrink the current handle scope to make it impossible to do
60  // handle allocations without an explicit handle scope.
61  current->limit = current->next;
62  current->extensions = -1;
63}
64
65
66inline NoHandleAllocation::~NoHandleAllocation() {
67  // Restore state in current handle scope to re-enable handle
68  // allocations.
69  v8::ImplementationUtilities::CurrentHandleScope()->extensions = extensions_;
70}
71#endif
72
73
74} }  // namespace v8::internal
75
76#endif  // V8_HANDLES_INL_H_
77