src/util-inl.h

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  21
  22 #ifndef SRC_UTIL_INL_H_
  23 #define SRC_UTIL_INL_H_
  24
  25 #include "util.h"
  26
  27 #include <assert.h>
  28
  29 namespace node {
  30
  31 template <class TypeName>
  32 inline v8::Local<TypeName> PersistentToLocal(
  33     v8::Isolate* isolate,
  34     const v8::Persistent<TypeName>& persistent) {
  35   if (persistent.IsWeak()) {
  36     return WeakPersistentToLocal(isolate, persistent);
  37   } else {
  38     return StrongPersistentToLocal(persistent);
  39   }
  40 }
  41
  42 template <class TypeName>
  43 inline v8::Local<TypeName> StrongPersistentToLocal(
  44     const v8::Persistent<TypeName>& persistent) {
  45   return *reinterpret_cast<v8::Local<TypeName>*>(
  46       const_cast<v8::Persistent<TypeName>*>(&persistent));
  47 }
  48
  49 template <class TypeName>
  50 inline v8::Local<TypeName> WeakPersistentToLocal(
  51     v8::Isolate* isolate,
  52     const v8::Persistent<TypeName>& persistent) {
  53   return v8::Local<TypeName>::New(isolate, persistent);
  54 }
  55
  56 inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
  57                                            const char* data,
  58                                            int length) {
  59   return v8::String::NewFromOneByte(isolate,
  60                                     reinterpret_cast<const uint8_t*>(data),
  61                                     v8::String::kNormalString,
  62                                     length);
  63 }
  64
  65 inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
  66                                            const signed char* data,
  67                                            int length) {
  68   return v8::String::NewFromOneByte(isolate,
  69                                     reinterpret_cast<const uint8_t*>(data),
  70                                     v8::String::kNormalString,
  71                                     length);
  72 }
  73
  74 inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
  75                                            const unsigned char* data,
  76                                            int length) {
  77   return v8::String::NewFromOneByte(isolate,
  78                                     reinterpret_cast<const uint8_t*>(data),
  79                                     v8::String::kNormalString,
  80                                     length);
  81 }
  82
  83 template <typename TypeName>
  84 void Wrap(v8::Local<v8::Object> object, TypeName* pointer) {
  85   assert(!object.IsEmpty());
  86   assert(object->InternalFieldCount() > 0);
  87   object->SetAlignedPointerInInternalField(0, pointer);
  88 }
  89
  90 template <typename TypeName>
  91 TypeName* Unwrap(v8::Local<v8::Object> object) {
  92   assert(!object.IsEmpty());
  93   assert(object->InternalFieldCount() > 0);
  94   void* pointer = object->GetAlignedPointerFromInternalField(0);
  95   return static_cast<TypeName*>(pointer);
  96 }
  97
  98 }  // namespace node
  99
 100 #endif  // SRC_UTIL_INL_H_