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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_UTIL_INL_H_
#define SRC_UTIL_INL_H_
#include "util.h"
#include <assert.h>
namespace node {
template <typename Inner, typename Outer>
ContainerOfHelper<Inner, Outer>::ContainerOfHelper(Inner Outer::*field,
Inner* pointer)
: pointer_(reinterpret_cast<Outer*>(
reinterpret_cast<uintptr_t>(pointer) -
reinterpret_cast<uintptr_t>(&(static_cast<Outer*>(0)->*field)))) {
}
template <typename Inner, typename Outer>
template <typename TypeName>
ContainerOfHelper<Inner, Outer>::operator TypeName*() const {
return static_cast<TypeName*>(pointer_);
}
template <typename Inner, typename Outer>
inline ContainerOfHelper<Inner, Outer> ContainerOf(Inner Outer::*field,
Inner* pointer) {
return ContainerOfHelper<Inner, Outer>(field, pointer);
}
template <class TypeName>
inline v8::Local<TypeName> PersistentToLocal(
v8::Isolate* isolate,
const v8::Persistent<TypeName>& persistent) {
if (persistent.IsWeak()) {
return WeakPersistentToLocal(isolate, persistent);
} else {
return StrongPersistentToLocal(persistent);
}
}
template <class TypeName>
inline v8::Local<TypeName> StrongPersistentToLocal(
const v8::Persistent<TypeName>& persistent) {
return *reinterpret_cast<v8::Local<TypeName>*>(
const_cast<v8::Persistent<TypeName>*>(&persistent));
}
template <class TypeName>
inline v8::Local<TypeName> WeakPersistentToLocal(
v8::Isolate* isolate,
const v8::Persistent<TypeName>& persistent) {
return v8::Local<TypeName>::New(isolate, persistent);
}
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const char* data,
int length) {
return v8::String::NewFromOneByte(isolate,
reinterpret_cast<const uint8_t*>(data),
v8::String::kNormalString,
length);
}
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const signed char* data,
int length) {
return v8::String::NewFromOneByte(isolate,
reinterpret_cast<const uint8_t*>(data),
v8::String::kNormalString,
length);
}
inline v8::Local<v8::String> OneByteString(v8::Isolate* isolate,
const unsigned char* data,
int length) {
return v8::String::NewFromOneByte(isolate,
reinterpret_cast<const uint8_t*>(data),
v8::String::kNormalString,
length);
}
template <typename TypeName>
void Wrap(v8::Local<v8::Object> object, TypeName* pointer) {
assert(!object.IsEmpty());
assert(object->InternalFieldCount() > 0);
object->SetAlignedPointerInInternalField(0, pointer);
}
template <typename TypeName>
TypeName* Unwrap(v8::Local<v8::Object> object) {
assert(!object.IsEmpty());
assert(object->InternalFieldCount() > 0);
void* pointer = object->GetAlignedPointerFromInternalField(0);
return static_cast<TypeName*>(pointer);
}
} // namespace node
#endif // SRC_UTIL_INL_H_
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