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caisse-bliss/.yarn/unplugged/nan-npm-0.8.0-c4db886767/node_modules/nan/nan.h

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/**********************************************************************************
* NAN - Native Abstractions for Node.js
*
* Copyright (c) 2014 NAN contributors:
* - Rod Vagg <https://github.com/rvagg>
* - Benjamin Byholm <https://github.com/kkoopa>
* - Trevor Norris <https://github.com/trevnorris>
* - Nathan Rajlich <https://github.com/TooTallNate>
* - Brett Lawson <https://github.com/brett19>
* - Ben Noordhuis <https://github.com/bnoordhuis>
*
* MIT +no-false-attribs License <https://github.com/rvagg/nan/blob/master/LICENSE>
*
* Version 0.8.0 (current Node unstable: 0.11.10, Node stable: 0.10.24)
*
* ChangeLog:
* * 0.8.0 Jan 9 2014
* - NanDispose -> NanDisposePersistent, deprecate NanDispose
* - Extract _NAN_*_RETURN_TYPE, pull up NAN_*()
*
* * 0.7.1 Jan 9 2014
* - Fixes to work against debug builds of Node
* - Safer NanPersistentToLocal (avoid reinterpret_cast)
* - Speed up common NanRawString case by only extracting flattened string when necessary
*
* * 0.7.0 Dec 17 2013
* - New no-arg form of NanCallback() constructor.
* - NanCallback#Call takes Handle rather than Local
* - Removed deprecated NanCallback#Run method, use NanCallback#Call instead
* - Split off _NAN_*_ARGS_TYPE from _NAN_*_ARGS
* - Restore (unofficial) Node 0.6 compatibility at NanCallback#Call()
* - Introduce NanRawString() for char* (or appropriate void*) from v8::String
* (replacement for NanFromV8String)
* - Introduce NanCString() for null-terminated char* from v8::String
*
* * 0.6.0 Nov 21 2013
* - Introduce NanNewLocal<T>(v8::Handle<T> value) for use in place of
* v8::Local<T>::New(...) since v8 started requiring isolate in Node 0.11.9
*
* * 0.5.2 Nov 16 2013
* - Convert SavePersistent and GetFromPersistent in NanAsyncWorker from protected and public
*
* * 0.5.1 Nov 12 2013
* - Use node::MakeCallback() instead of direct v8::Function::Call()
*
* * 0.5.0 Nov 11 2013
* - Added @TooTallNate as collaborator
* - New, much simpler, "include_dirs" for binding.gyp
* - Added full range of NAN_INDEX_* macros to match NAN_PROPERTY_* macros
*
* * 0.4.4 Nov 2 2013
* - Isolate argument from v8::Persistent::MakeWeak removed for 0.11.8+
*
* * 0.4.3 Nov 2 2013
* - Include node_object_wrap.h, removed from node.h for Node 0.11.8.
*
* * 0.4.2 Nov 2 2013
* - Handle deprecation of v8::Persistent::Dispose(v8::Isolate* isolate)) for
* Node 0.11.8 release.
*
* * 0.4.1 Sep 16 2013
* - Added explicit `#include <uv.h>` as it was removed from node.h for v0.11.8
*
* * 0.4.0 Sep 2 2013
* - Added NAN_INLINE and NAN_DEPRECATED and made use of them
* - Added NanError, NanTypeError and NanRangeError
* - Cleaned up code
*
* * 0.3.2 Aug 30 2013
* - Fix missing scope declaration in GetFromPersistent() and SaveToPersistent
* in NanAsyncWorker
*
* * 0.3.1 Aug 20 2013
* - fix "not all control paths return a value" compile warning on some platforms
*
* * 0.3.0 Aug 19 2013
* - Made NAN work with NPM
* - Lots of fixes to NanFromV8String, pulling in features from new Node core
* - Changed node::encoding to Nan::Encoding in NanFromV8String to unify the API
* - Added optional error number argument for NanThrowError()
* - Added NanInitPersistent()
* - Added NanReturnNull() and NanReturnEmptyString()
* - Added NanLocker and NanUnlocker
* - Added missing scopes
* - Made sure to clear disposed Persistent handles
* - Changed NanAsyncWorker to allocate error messages on the heap
* - Changed NanThrowError(Local<Value>) to NanThrowError(Handle<Value>)
* - Fixed leak in NanAsyncWorker when errmsg is used
*
* * 0.2.2 Aug 5 2013
* - Fixed usage of undefined variable with node::BASE64 in NanFromV8String()
*
* * 0.2.1 Aug 5 2013
* - Fixed 0.8 breakage, node::BUFFER encoding type not available in 0.8 for
* NanFromV8String()
*
* * 0.2.0 Aug 5 2013
* - Added NAN_PROPERTY_GETTER, NAN_PROPERTY_SETTER, NAN_PROPERTY_ENUMERATOR,
* NAN_PROPERTY_DELETER, NAN_PROPERTY_QUERY
* - Extracted _NAN_METHOD_ARGS, _NAN_GETTER_ARGS, _NAN_SETTER_ARGS,
* _NAN_PROPERTY_GETTER_ARGS, _NAN_PROPERTY_SETTER_ARGS,
* _NAN_PROPERTY_ENUMERATOR_ARGS, _NAN_PROPERTY_DELETER_ARGS,
* _NAN_PROPERTY_QUERY_ARGS
* - Added NanGetInternalFieldPointer, NanSetInternalFieldPointer
* - Added NAN_WEAK_CALLBACK, NAN_WEAK_CALLBACK_OBJECT,
* NAN_WEAK_CALLBACK_DATA, NanMakeWeak
* - Renamed THROW_ERROR to _NAN_THROW_ERROR
* - Added NanNewBufferHandle(char*, size_t, node::smalloc::FreeCallback, void*)
* - Added NanBufferUse(char*, uint32_t)
* - Added NanNewContextHandle(v8::ExtensionConfiguration*,
* v8::Handle<v8::ObjectTemplate>, v8::Handle<v8::Value>)
* - Fixed broken NanCallback#GetFunction()
* - Added optional encoding and size arguments to NanFromV8String()
* - Added NanGetPointerSafe() and NanSetPointerSafe()
* - Added initial test suite (to be expanded)
* - Allow NanUInt32OptionValue to convert any Number object
*
* * 0.1.0 Jul 21 2013
* - Added `NAN_GETTER`, `NAN_SETTER`
* - Added `NanThrowError` with single Local<Value> argument
* - Added `NanNewBufferHandle` with single uint32_t argument
* - Added `NanHasInstance(Persistent<FunctionTemplate>&, Handle<Value>)`
* - Added `Local<Function> NanCallback#GetFunction()`
* - Added `NanCallback#Call(int, Local<Value>[])`
* - Deprecated `NanCallback#Run(int, Local<Value>[])` in favour of Call
*
* See https://github.com/rvagg/nan for the latest update to this file
**********************************************************************************/
#ifndef NAN_H
#define NAN_H
#include <uv.h>
#include <node.h>
#include <node_buffer.h>
#include <node_version.h>
#include <node_object_wrap.h>
#include <string.h>
#if defined(__GNUC__) && !defined(DEBUG)
# define NAN_INLINE(declarator) inline __attribute__((always_inline)) declarator
#elif defined(_MSC_VER) && !defined(DEBUG)
# define NAN_INLINE(declarator) __forceinline declarator
#else
# define NAN_INLINE(declarator) inline declarator
#endif
#if defined(__GNUC__) && !V8_DISABLE_DEPRECATIONS
# define NAN_DEPRECATED(declarator) __attribute__((deprecated)) declarator
#elif defined(_MSC_VER) && !V8_DISABLE_DEPRECATIONS
# define NAN_DEPRECATED(declarator) __declspec(deprecated) declarator
#else
# define NAN_DEPRECATED(declarator) declarator
#endif
// some generic helpers
template<class T> static NAN_INLINE(bool NanSetPointerSafe(
T *var
, T val
)) {
if (var) {
*var = val;
return true;
} else {
return false;
}
}
template<class T> static NAN_INLINE(T NanGetPointerSafe(
T *var
, T fallback = reinterpret_cast<T>(0)
)) {
if (var) {
return *var;
} else {
return fallback;
}
}
#define NanSymbol(value) v8::String::NewSymbol(value)
static NAN_INLINE(bool NanBooleanOptionValue(
v8::Local<v8::Object> optionsObj
, v8::Handle<v8::String> opt, bool def
)) {
if (def) {
return optionsObj.IsEmpty()
|| !optionsObj->Has(opt)
|| optionsObj->Get(opt)->BooleanValue();
} else {
return !optionsObj.IsEmpty()
&& optionsObj->Has(opt)
&& optionsObj->Get(opt)->BooleanValue();
}
}
static NAN_INLINE(bool NanBooleanOptionValue(
v8::Local<v8::Object> optionsObj
, v8::Handle<v8::String> opt
)) {
return NanBooleanOptionValue(optionsObj, opt, false);
}
static NAN_INLINE(uint32_t NanUInt32OptionValue(
v8::Local<v8::Object> optionsObj
, v8::Handle<v8::String> opt
, uint32_t def
)) {
return !optionsObj.IsEmpty()
&& optionsObj->Has(opt)
&& optionsObj->Get(opt)->IsNumber()
? optionsObj->Get(opt)->Uint32Value()
: def;
}
#if (NODE_MODULE_VERSION > 0x000B)
// Node 0.11+ (0.11.3 and below won't compile with these)
static v8::Isolate* nan_isolate = v8::Isolate::GetCurrent();
# define _NAN_METHOD_ARGS_TYPE const v8::FunctionCallbackInfo<v8::Value>&
# define _NAN_METHOD_ARGS _NAN_METHOD_ARGS_TYPE args
# define _NAN_METHOD_RETURN_TYPE void
# define _NAN_GETTER_ARGS_TYPE const v8::PropertyCallbackInfo<v8::Value>&
# define _NAN_GETTER_ARGS _NAN_GETTER_ARGS_TYPE args
# define _NAN_GETTER_RETURN_TYPE void
# define _NAN_SETTER_ARGS_TYPE const v8::PropertyCallbackInfo<void>&
# define _NAN_SETTER_ARGS _NAN_SETTER_ARGS_TYPE args
# define _NAN_SETTER_RETURN_TYPE void
# define _NAN_PROPERTY_GETTER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Value>&
# define _NAN_PROPERTY_GETTER_ARGS _NAN_PROPERTY_GETTER_ARGS_TYPE args
# define _NAN_PROPERTY_GETTER_RETURN_TYPE void
# define _NAN_PROPERTY_SETTER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Value>&
# define _NAN_PROPERTY_SETTER_ARGS _NAN_PROPERTY_SETTER_ARGS_TYPE args
# define _NAN_PROPERTY_SETTER_RETURN_TYPE void
# define _NAN_PROPERTY_ENUMERATOR_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Array>&
# define _NAN_PROPERTY_ENUMERATOR_ARGS _NAN_PROPERTY_ENUMERATOR_ARGS_TYPE args
# define _NAN_PROPERTY_ENUMERATOR_RETURN_TYPE void
# define _NAN_PROPERTY_DELETER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Boolean>&
# define _NAN_PROPERTY_DELETER_ARGS \
_NAN_PROPERTY_DELETER_ARGS_TYPE args
# define _NAN_PROPERTY_DELETER_RETURN_TYPE void
# define _NAN_PROPERTY_QUERY_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Integer>&
# define _NAN_PROPERTY_QUERY_ARGS _NAN_PROPERTY_QUERY_ARGS_TYPE args
# define _NAN_PROPERTY_QUERY_RETURN_TYPE void
# define _NAN_INDEX_GETTER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Value>&
# define _NAN_INDEX_GETTER_ARGS _NAN_INDEX_GETTER_ARGS_TYPE args
# define _NAN_INDEX_GETTER_RETURN_TYPE void
# define _NAN_INDEX_SETTER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Value>&
# define _NAN_INDEX_SETTER_ARGS _NAN_INDEX_SETTER_ARGS_TYPE args
# define _NAN_INDEX_SETTER_RETURN_TYPE void
# define _NAN_INDEX_ENUMERATOR_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Array>&
# define _NAN_INDEX_ENUMERATOR_ARGS _NAN_INDEX_ENUMERATOR_ARGS_TYPE args
# define _NAN_INDEX_ENUMERATOR_RETURN_TYPE void
# define _NAN_INDEX_DELETER_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Boolean>&
# define _NAN_INDEX_DELETER_ARGS _NAN_INDEX_DELETER_ARGS_TYPE args
# define _NAN_INDEX_DELETER_RETURN_TYPE void
# define _NAN_INDEX_QUERY_ARGS_TYPE \
const v8::PropertyCallbackInfo<v8::Integer>&
# define _NAN_INDEX_QUERY_ARGS _NAN_INDEX_QUERY_ARGS_TYPE args
# define _NAN_INDEX_QUERY_RETURN_TYPE void
# define NanGetInternalFieldPointer(object, index) \
object->GetAlignedPointerFromInternalField(index)
# define NanSetInternalFieldPointer(object, index, value) \
object->SetAlignedPointerInInternalField(index, value)
# define NAN_WEAK_CALLBACK(type, name) \
void name( \
v8::Isolate* isolate \
, v8::Persistent<v8::Object>* object \
, type data)
# define NAN_WEAK_CALLBACK_OBJECT (*object)
# define NAN_WEAK_CALLBACK_DATA(type) ((type) data)
# define NanScope() v8::HandleScope scope(nan_isolate)
# define NanLocker() v8::Locker locker(nan_isolate)
# define NanUnlocker() v8::Unlocker unlocker(nan_isolate)
# define NanReturnValue(value) return args.GetReturnValue().Set(value)
# define NanReturnUndefined() return
# define NanReturnNull() return args.GetReturnValue().SetNull()
# define NanReturnEmptyString() return args.GetReturnValue().SetEmptyString()
# define NanAssignPersistent(type, handle, obj) handle.Reset(nan_isolate, obj)
# define NanInitPersistent(type, name, obj) \
v8::Persistent<type> name(nan_isolate, obj)
# define NanObjectWrapHandle(obj) obj->handle()
//TODO: remove <0.11.8 support when 0.12 is released
#if NODE_VERSION_AT_LEAST(0, 11, 8)
# define NanMakeWeak(handle, parameter, callback) \
handle.MakeWeak(parameter, callback)
#else
# define NanMakeWeak(handle, parameter, callback) \
handle.MakeWeak(nan_isolate, parameter, callback)
#endif
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
# define _NAN_THROW_ERROR(fun, errmsg) \
do { \
NanScope(); \
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
} while (0);
template<class T> static NAN_INLINE(v8::Local<T> NanNewLocal(
v8::Handle<T> val
)) {
//TODO: remove <0.11.9 support when 0.12 is released
#if NODE_VERSION_AT_LEAST(0, 11, 9)
return v8::Local<T>::New(nan_isolate, val);
#else
return v8::Local<T>::New(val);
#endif
}
static NAN_INLINE(v8::Handle<v8::Value> NanError(const char* errmsg)) {
return _NAN_ERROR(v8::Exception::Error, errmsg);
}
static NAN_INLINE(void NanThrowError(const char* errmsg)) {
_NAN_THROW_ERROR(v8::Exception::Error, errmsg);
}
static NAN_INLINE(void NanThrowError(v8::Handle<v8::Value> error)) {
NanScope();
v8::ThrowException(error);
}
static NAN_INLINE(v8::Handle<v8::Value> NanError(
const char *msg
, const int errorNumber
)) {
v8::Local<v8::Value> err = v8::Exception::Error(v8::String::New(msg));
v8::Local<v8::Object> obj = err.As<v8::Object>();
obj->Set(v8::String::New("code"), v8::Int32::New(errorNumber));
return err;
}
static NAN_INLINE(void NanThrowError(
const char *msg
, const int errorNumber
)) {
NanThrowError(NanError(msg, errorNumber));
}
static NAN_INLINE(v8::Handle<v8::Value> NanTypeError(const char* errmsg)) {
return _NAN_ERROR(v8::Exception::TypeError, errmsg);
}
static NAN_INLINE(void NanThrowTypeError(const char* errmsg)) {
_NAN_THROW_ERROR(v8::Exception::TypeError, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanRangeError(const char* errmsg)) {
return _NAN_ERROR(v8::Exception::RangeError, errmsg);
}
static NAN_INLINE(void NanThrowRangeError(const char* errmsg)) {
_NAN_THROW_ERROR(v8::Exception::RangeError, errmsg);
}
template<class T> static NAN_INLINE(void NanDisposePersistent(
v8::Persistent<T> &handle
)) {
//TODO: remove <0.11.8 support when 0.12 is released
# if NODE_VERSION_AT_LEAST(0, 11, 8)
handle.Reset();
# else
handle.Dispose(nan_isolate);
# endif
handle.Clear();
}
template<class T> static NAN_DEPRECATED(void NanDispose(
v8::Persistent<T> &handle
)) {
NanDisposePersistent(handle);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (
char *data
, size_t length
, node::smalloc::FreeCallback callback
, void *hint
)) {
return node::Buffer::New(data, length, callback, hint);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (
char *data
, uint32_t size
)) {
return node::Buffer::New(data, size);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (uint32_t size)) {
return node::Buffer::New(size);
}
static NAN_INLINE(v8::Local<v8::Object> NanBufferUse(
char* data
, uint32_t size
)) {
return node::Buffer::Use(data, size);
}
template <class TypeName>
static NAN_INLINE(v8::Local<TypeName> NanPersistentToLocal(
const v8::Persistent<TypeName>& persistent
)) {
return v8::Local<TypeName>::New(nan_isolate, persistent);
}
static NAN_INLINE(bool NanHasInstance(
v8::Persistent<v8::FunctionTemplate>& function_template
, v8::Handle<v8::Value> value
)) {
return NanPersistentToLocal(function_template)->HasInstance(value);
}
static NAN_INLINE(v8::Local<v8::Context> NanNewContextHandle(
v8::ExtensionConfiguration* extensions = NULL
, v8::Handle<v8::ObjectTemplate> tmpl = v8::Handle<v8::ObjectTemplate>()
, v8::Handle<v8::Value> obj = v8::Handle<v8::Value>()
)) {
return v8::Local<v8::Context>::New(
nan_isolate
, v8::Context::New(nan_isolate, extensions, tmpl, obj)
);
}
#else
// Node 0.8 and 0.10
# define _NAN_METHOD_ARGS_TYPE const v8::Arguments&
# define _NAN_METHOD_ARGS _NAN_METHOD_ARGS_TYPE args
# define _NAN_METHOD_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_GETTER_ARGS_TYPE const v8::AccessorInfo &
# define _NAN_GETTER_ARGS _NAN_GETTER_ARGS_TYPE args
# define _NAN_GETTER_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_SETTER_ARGS_TYPE const v8::AccessorInfo &
# define _NAN_SETTER_ARGS _NAN_SETTER_ARGS_TYPE args
# define _NAN_SETTER_RETURN_TYPE void
# define _NAN_PROPERTY_GETTER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_PROPERTY_GETTER_ARGS _NAN_PROPERTY_GETTER_ARGS_TYPE args
# define _NAN_PROPERTY_GETTER_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_PROPERTY_SETTER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_PROPERTY_SETTER_ARGS _NAN_PROPERTY_SETTER_ARGS_TYPE args
# define _NAN_PROPERTY_SETTER_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_PROPERTY_ENUMERATOR_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_PROPERTY_ENUMERATOR_ARGS _NAN_PROPERTY_ENUMERATOR_ARGS_TYPE args
# define _NAN_PROPERTY_ENUMERATOR_RETURN_TYPE v8::Handle<v8::Array>
# define _NAN_PROPERTY_DELETER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_PROPERTY_DELETER_ARGS _NAN_PROPERTY_DELETER_ARGS_TYPE args
# define _NAN_PROPERTY_DELETER_RETURN_TYPE v8::Handle<v8::Boolean>
# define _NAN_PROPERTY_QUERY_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_PROPERTY_QUERY_ARGS _NAN_PROPERTY_QUERY_ARGS_TYPE args
# define _NAN_PROPERTY_QUERY_RETURN_TYPE v8::Handle<v8::Integer>
# define _NAN_INDEX_GETTER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_INDEX_GETTER_ARGS _NAN_INDEX_GETTER_ARGS_TYPE args
# define _NAN_INDEX_GETTER_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_INDEX_SETTER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_INDEX_SETTER_ARGS _NAN_INDEX_SETTER_ARGS_TYPE args
# define _NAN_INDEX_SETTER_RETURN_TYPE v8::Handle<v8::Value>
# define _NAN_INDEX_ENUMERATOR_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_INDEX_ENUMERATOR_ARGS _NAN_INDEX_ENUMERATOR_ARGS_TYPE args
# define _NAN_INDEX_ENUMERATOR_RETURN_TYPE v8::Handle<v8::Array>
# define _NAN_INDEX_DELETER_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_INDEX_DELETER_ARGS _NAN_INDEX_DELETER_ARGS_TYPE args
# define _NAN_INDEX_DELETER_RETURN_TYPE v8::Handle<v8::Boolean>
# define _NAN_INDEX_QUERY_ARGS_TYPE const v8::AccessorInfo&
# define _NAN_INDEX_QUERY_ARGS _NAN_INDEX_QUERY_ARGS_TYPE args
# define _NAN_INDEX_QUERY_RETURN_TYPE v8::Handle<v8::Integer>
# define NanGetInternalFieldPointer(object, index) \
object->GetPointerFromInternalField(index)
# define NanSetInternalFieldPointer(object, index, value) \
object->SetPointerInInternalField(index, value)
# define NAN_WEAK_CALLBACK(type, name) \
void name( \
v8::Persistent<v8::Value> object \
, void *data)
# define NAN_WEAK_CALLBACK_OBJECT object
# define NAN_WEAK_CALLBACK_DATA(type) ((type) data)
# define NanScope() v8::HandleScope scope
# define NanLocker() v8::Locker locker
# define NanUnlocker() v8::Unlocker unlocker
# define NanReturnValue(value) return scope.Close(value)
# define NanReturnUndefined() return v8::Undefined()
# define NanReturnNull() return v8::Null()
# define NanReturnEmptyString() return v8::String::Empty()
# define NanInitPersistent(type, name, obj) \
v8::Persistent<type> name = v8::Persistent<type>::New(obj)
# define NanAssignPersistent(type, handle, obj) \
handle = v8::Persistent<type>::New(obj)
# define NanObjectWrapHandle(obj) obj->handle_
# define NanMakeWeak(handle, parameters, callback) \
handle.MakeWeak(parameters, callback)
# define _NAN_ERROR(fun, errmsg) \
fun(v8::String::New(errmsg))
# define _NAN_THROW_ERROR(fun, errmsg) \
do { \
NanScope(); \
return v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
} while (0);
template<class T> static NAN_INLINE(v8::Local<T> NanNewLocal(
v8::Handle<T> val
)) {
return v8::Local<T>::New(val);
}
static NAN_INLINE(v8::Handle<v8::Value> NanError(const char* errmsg)) {
return _NAN_ERROR(v8::Exception::Error, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanThrowError(const char* errmsg)) {
_NAN_THROW_ERROR(v8::Exception::Error, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanThrowError(
v8::Handle<v8::Value> error
)) {
NanScope();
return v8::ThrowException(error);
}
static NAN_INLINE(v8::Handle<v8::Value> NanError(
const char *msg
, const int errorNumber
)) {
v8::Local<v8::Value> err = v8::Exception::Error(v8::String::New(msg));
v8::Local<v8::Object> obj = err.As<v8::Object>();
obj->Set(v8::String::New("code"), v8::Int32::New(errorNumber));
return err;
}
static NAN_INLINE(v8::Handle<v8::Value> NanThrowError(
const char *msg
, const int errorNumber
)) {
return NanThrowError(NanError(msg, errorNumber));
}
static NAN_INLINE(v8::Handle<v8::Value> NanTypeError(const char* errmsg)) {
return _NAN_ERROR(v8::Exception::TypeError, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanThrowTypeError(
const char* errmsg
)) {
_NAN_THROW_ERROR(v8::Exception::TypeError, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanRangeError(
const char* errmsg
)) {
return _NAN_ERROR(v8::Exception::RangeError, errmsg);
}
static NAN_INLINE(v8::Handle<v8::Value> NanThrowRangeError(
const char* errmsg
)) {
_NAN_THROW_ERROR(v8::Exception::RangeError, errmsg);
}
template<class T> static NAN_INLINE(void NanDisposePersistent(
v8::Persistent<T> &handle
)) {
handle.Dispose();
handle.Clear();
}
template<class T> static NAN_DEPRECATED(void NanDispose(
v8::Persistent<T> &handle
)) {
NanDisposePersistent(handle);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (
char *data
, size_t length
, node::Buffer::free_callback callback
, void *hint
)) {
return NanNewLocal<v8::Object>(
node::Buffer::New(data, length, callback, hint)->handle_);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (
char *data
, uint32_t size
)) {
return NanNewLocal<v8::Object>(node::Buffer::New(data, size)->handle_);
}
static NAN_INLINE(v8::Local<v8::Object> NanNewBufferHandle (uint32_t size)) {
return NanNewLocal<v8::Object>(node::Buffer::New(size)->handle_);
}
static NAN_INLINE(void FreeData(char *data, void *hint)) {
delete[] data;
}
static NAN_INLINE(v8::Local<v8::Object> NanBufferUse(
char* data
, uint32_t size
)) {
return NanNewLocal<v8::Object>(
node::Buffer::New(data, size, FreeData, NULL)->handle_);
}
template <class TypeName>
static NAN_INLINE(v8::Local<TypeName> NanPersistentToLocal(
const v8::Persistent<TypeName>& persistent
)) {
return NanNewLocal<TypeName>(persistent);
}
static NAN_INLINE(bool NanHasInstance(
v8::Persistent<v8::FunctionTemplate>& function_template
, v8::Handle<v8::Value> value
)) {
return function_template->HasInstance(value);
}
static NAN_INLINE(v8::Local<v8::Context> NanNewContextHandle(
v8::ExtensionConfiguration* extensions = NULL
, v8::Handle<v8::ObjectTemplate> tmpl = v8::Handle<v8::ObjectTemplate>()
, v8::Handle<v8::Value> obj = v8::Handle<v8::Value>()
)) {
v8::Persistent<v8::Context> ctx = v8::Context::New(extensions, tmpl, obj);
v8::Local<v8::Context> lctx = NanNewLocal<v8::Context>(ctx);
ctx.Dispose();
return lctx;
}
#endif // node version
#define NAN_METHOD(name) _NAN_METHOD_RETURN_TYPE name(_NAN_METHOD_ARGS)
#define NAN_GETTER(name) \
_NAN_GETTER_RETURN_TYPE name( \
v8::Local<v8::String> property \
, _NAN_GETTER_ARGS)
#define NAN_SETTER(name) \
_NAN_SETTER_RETURN_TYPE name( \
v8::Local<v8::String> property \
, v8::Local<v8::Value> value \
, _NAN_SETTER_ARGS)
#define NAN_PROPERTY_GETTER(name) \
_NAN_PROPERTY_GETTER_RETURN_TYPE name( \
v8::Local<v8::String> property \
, _NAN_PROPERTY_GETTER_ARGS)
#define NAN_PROPERTY_SETTER(name) \
_NAN_PROPERTY_SETTER_RETURN_TYPE name( \
v8::Local<v8::String> property \
, v8::Local<v8::Value> value \
, _NAN_PROPERTY_SETTER_ARGS)
#define NAN_PROPERTY_ENUMERATOR(name) \
_NAN_PROPERTY_ENUMERATOR_RETURN_TYPE name(_NAN_PROPERTY_ENUMERATOR_ARGS)
#define NAN_PROPERTY_DELETER(name) \
_NAN_PROPERTY_DELETER_RETURN_TYPE name( \
v8::Local<v8::String> property \
, _NAN_PROPERTY_DELETER_ARGS)
#define NAN_PROPERTY_QUERY(name) \
_NAN_PROPERTY_QUERY_RETURN_TYPE name( \
v8::Local<v8::String> property \
, _NAN_PROPERTY_QUERY_ARGS)
# define NAN_INDEX_GETTER(name) \
_NAN_INDEX_GETTER_RETURN_TYPE name(uint32_t index, _NAN_INDEX_GETTER_ARGS)
#define NAN_INDEX_SETTER(name) \
_NAN_INDEX_SETTER_RETURN_TYPE name( \
uint32_t index \
, v8::Local<v8::Value> value \
, _NAN_INDEX_SETTER_ARGS)
#define NAN_INDEX_ENUMERATOR(name) \
_NAN_INDEX_ENUMERATOR_RETURN_TYPE name(_NAN_INDEX_ENUMERATOR_ARGS)
#define NAN_INDEX_DELETER(name) \
_NAN_INDEX_DELETER_RETURN_TYPE name( \
uint32_t index \
, _NAN_INDEX_DELETER_ARGS)
#define NAN_INDEX_QUERY(name) \
_NAN_INDEX_QUERY_RETURN_TYPE name(uint32_t index, _NAN_INDEX_QUERY_ARGS)
class NanCallback {
public:
NanCallback() {
NanScope();
v8::Local<v8::Object> obj = v8::Object::New();
NanAssignPersistent(v8::Object, handle, obj);
}
NanCallback(const v8::Handle<v8::Function> &fn) {
NanScope();
v8::Local<v8::Object> obj = v8::Object::New();
NanAssignPersistent(v8::Object, handle, obj);
SetFunction(fn);
}
~NanCallback() {
if (handle.IsEmpty()) return;
handle.Dispose();
handle.Clear();
}
NAN_INLINE(void SetFunction(const v8::Handle<v8::Function> &fn)) {
NanScope();
NanPersistentToLocal(handle)->Set(NanSymbol("callback"), fn);
}
NAN_INLINE(v8::Local<v8::Function> GetFunction ()) {
return NanPersistentToLocal(handle)->Get(NanSymbol("callback"))
.As<v8::Function>();
}
void Call(int argc, v8::Handle<v8::Value> argv[]) {
NanScope();
#if NODE_VERSION_AT_LEAST(0, 8, 0)
v8::Local<v8::Function> callback = NanPersistentToLocal(handle)->
Get(NanSymbol("callback")).As<v8::Function>();
node::MakeCallback(
v8::Context::GetCurrent()->Global()
, callback
, argc
, argv
);
#else
node::MakeCallback(handle, "callback", argc, argv);
#endif
}
private:
v8::Persistent<v8::Object> handle;
};
/* abstract */ class NanAsyncWorker {
public:
NanAsyncWorker (NanCallback *callback) : callback(callback) {
request.data = this;
errmsg = NULL;
}
virtual ~NanAsyncWorker () {
NanScope();
if (!persistentHandle.IsEmpty())
NanDisposePersistent(persistentHandle);
if (callback)
delete callback;
if (errmsg)
delete errmsg;
}
virtual void WorkComplete () {
NanScope();
if (errmsg == NULL)
HandleOKCallback();
else
HandleErrorCallback();
delete callback;
callback = NULL;
}
void SavePersistent(const char *key, v8::Local<v8::Object> &obj) {
NanScope();
v8::Local<v8::Object> handle = NanPersistentToLocal(persistentHandle);
handle->Set(NanSymbol(key), obj);
}
v8::Local<v8::Object> GetFromPersistent(const char *key) {
NanScope();
v8::Local<v8::Object> handle = NanPersistentToLocal(persistentHandle);
return handle->Get(NanSymbol(key)).As<v8::Object>();
}
virtual void Execute () =0;
uv_work_t request;
protected:
v8::Persistent<v8::Object> persistentHandle;
NanCallback *callback;
const char *errmsg;
virtual void HandleOKCallback () {
NanScope();
callback->Call(0, NULL);
};
virtual void HandleErrorCallback () {
NanScope();
v8::Local<v8::Value> argv[] = {
v8::Exception::Error(v8::String::New(errmsg))
};
callback->Call(1, argv);
}
};
NAN_INLINE(void NanAsyncExecute (uv_work_t* req)) {
NanAsyncWorker *worker = static_cast<NanAsyncWorker*>(req->data);
worker->Execute();
}
NAN_INLINE(void NanAsyncExecuteComplete (uv_work_t* req)) {
NanAsyncWorker* worker = static_cast<NanAsyncWorker*>(req->data);
worker->WorkComplete();
delete worker;
}
NAN_INLINE(void NanAsyncQueueWorker (NanAsyncWorker* worker)) {
uv_queue_work(
uv_default_loop()
, &worker->request
, NanAsyncExecute
, (uv_after_work_cb)NanAsyncExecuteComplete
);
}
//// Base 64 ////
#define _nan_base64_encoded_size(size) ((size + 2 - ((size + 2) % 3)) / 3 * 4)
// Doesn't check for padding at the end. Can be 1-2 bytes over.
static NAN_INLINE(size_t _nan_base64_decoded_size_fast(size_t size)) {
size_t remainder = size % 4;
size = (size / 4) * 3;
if (remainder) {
if (size == 0 && remainder == 1) {
// special case: 1-byte input cannot be decoded
size = 0;
} else {
// non-padded input, add 1 or 2 extra bytes
size += 1 + (remainder == 3);
}
}
return size;
}
template <typename TypeName>
static NAN_INLINE(size_t _nan_base64_decoded_size(
const TypeName* src
, size_t size
)) {
if (size == 0)
return 0;
if (src[size - 1] == '=')
size--;
if (size > 0 && src[size - 1] == '=')
size--;
return _nan_base64_decoded_size_fast(size);
}
// supports regular and URL-safe base64
static const int _nan_unbase64_table[] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -2, -1, -1, -2, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, 62, -1, 63
, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1
, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, 63
, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40
, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
#define _nan_unbase64(x) _nan_unbase64_table[(uint8_t)(x)]
template <typename TypeName> static size_t _nan_base64_decode(
char* buf
, size_t len
, const TypeName* src
, const size_t srcLen
) {
char* dst = buf;
char* dstEnd = buf + len;
const TypeName* srcEnd = src + srcLen;
while (src < srcEnd && dst < dstEnd) {
int remaining = srcEnd - src;
char a, b, c, d;
while (_nan_unbase64(*src) < 0 && src < srcEnd) src++, remaining--;
if (remaining == 0 || *src == '=') break;
a = _nan_unbase64(*src++);
while (_nan_unbase64(*src) < 0 && src < srcEnd) src++, remaining--;
if (remaining <= 1 || *src == '=') break;
b = _nan_unbase64(*src++);
*dst++ = (a << 2) | ((b & 0x30) >> 4);
if (dst == dstEnd) break;
while (_nan_unbase64(*src) < 0 && src < srcEnd) src++, remaining--;
if (remaining <= 2 || *src == '=') break;
c = _nan_unbase64(*src++);
*dst++ = ((b & 0x0F) << 4) | ((c & 0x3C) >> 2);
if (dst == dstEnd) break;
while (_nan_unbase64(*src) < 0 && src < srcEnd) src++, remaining--;
if (remaining <= 3 || *src == '=') break;
d = _nan_unbase64(*src++);
*dst++ = ((c & 0x03) << 6) | (d & 0x3F);
}
return dst - buf;
}
//// HEX ////
template <typename TypeName> unsigned _nan_hex2bin(TypeName c) {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'A' && c <= 'F') return 10 + (c - 'A');
if (c >= 'a' && c <= 'f') return 10 + (c - 'a');
return static_cast<unsigned>(-1);
}
template <typename TypeName> static size_t _nan_hex_decode(
char* buf
, size_t len
, const TypeName* src
, const size_t srcLen
) {
size_t i;
for (i = 0; i < len && i * 2 + 1 < srcLen; ++i) {
unsigned a = _nan_hex2bin(src[i * 2 + 0]);
unsigned b = _nan_hex2bin(src[i * 2 + 1]);
if (!~a || !~b) return i;
buf[i] = a * 16 + b;
}
return i;
}
static bool _NanGetExternalParts(
v8::Handle<v8::Value> val
, const char** data
, size_t* len
) {
if (node::Buffer::HasInstance(val)) {
*data = node::Buffer::Data(val.As<v8::Object>());
*len = node::Buffer::Length(val.As<v8::Object>());
return true;
}
assert(val->IsString());
v8::Local<v8::String> str = NanNewLocal(val.As<v8::String>());
if (str->IsExternalAscii()) {
const v8::String::ExternalAsciiStringResource* ext;
ext = str->GetExternalAsciiStringResource();
*data = ext->data();
*len = ext->length();
return true;
} else if (str->IsExternal()) {
const v8::String::ExternalStringResource* ext;
ext = str->GetExternalStringResource();
*data = reinterpret_cast<const char*>(ext->data());
*len = ext->length();
return true;
}
return false;
}
namespace Nan {
enum Encoding {ASCII, UTF8, BASE64, UCS2, BINARY, HEX, BUFFER};
}
static NAN_INLINE(void* NanRawString(
v8::Handle<v8::Value> from
, enum Nan::Encoding encoding
, size_t *datalen
, void *buf
, size_t buflen
, int flags
)) {
NanScope();
size_t sz_;
size_t term_len = !(flags & v8::String::NO_NULL_TERMINATION);
char *data = NULL;
size_t len;
bool is_extern = _NanGetExternalParts(
from
, const_cast<const char**>(&data)
, &len);
if (is_extern && !term_len) {
NanSetPointerSafe(datalen, len);
return data;
}
v8::Local<v8::String> toStr = from->ToString();
char *to = (char*)buf;
switch(encoding) {
case Nan::ASCII:
#if NODE_MODULE_VERSION < 0x0C
sz_ = toStr->Length();
if (to == NULL) {
to = new char[sz_ + term_len];
} else {
assert(buflen >= sz_ + term_len && "too small buffer");
}
NanSetPointerSafe<size_t>(
datalen
, toStr->WriteAscii(to, 0, sz_ + term_len, flags));
return to;
#endif
case Nan::BINARY:
case Nan::BUFFER:
sz_ = toStr->Length();
if (to == NULL) {
to = new char[sz_ + term_len];
} else {
assert(buflen >= sz_ + term_len && "too small buffer");
}
#if NODE_MODULE_VERSION < 0x0C
// TODO(isaacs): THIS IS AWFUL!!!
// AGREE(kkoopa)
{
uint16_t* twobytebuf = new uint16_t[sz_ + term_len];
size_t len = toStr->Write(twobytebuf, 0, sz_ + term_len, flags);
for (size_t i = 0; i < sz_ + term_len && i < len + term_len; i++) {
unsigned char *b = reinterpret_cast<unsigned char*>(&twobytebuf[i]);
to[i] = *b;
}
NanSetPointerSafe<size_t>(datalen, len);
delete[] twobytebuf;
return to;
}
#else
NanSetPointerSafe<size_t>(
datalen,
toStr->WriteOneByte(
reinterpret_cast<uint8_t *>(to)
, 0
, sz_ + term_len
, flags));
return to;
#endif
case Nan::UTF8:
sz_ = toStr->Utf8Length();
if (to == NULL) {
to = new char[sz_ + term_len];
} else {
assert(buflen >= sz_ + term_len && "too small buffer");
}
NanSetPointerSafe<size_t>(
datalen
, toStr->WriteUtf8(to, sz_ + term_len, NULL, flags) - term_len);
return to;
case Nan::BASE64:
{
v8::String::Value value(toStr);
sz_ = _nan_base64_decoded_size(*value, value.length());
if (to == NULL) {
to = new char[sz_ + term_len];
} else {
assert(buflen >= sz_ + term_len);
}
NanSetPointerSafe<size_t>(
datalen
, _nan_base64_decode(to, sz_, *value, value.length()));
if (term_len) {
to[sz_] = '\0';
}
return to;
}
case Nan::UCS2:
{
sz_ = toStr->Length();
if (to == NULL) {
to = new char[(sz_ + term_len) * 2];
} else {
assert(buflen >= (sz_ + term_len) * 2 && "too small buffer");
}
int bc = 2 * toStr->Write(
reinterpret_cast<uint16_t *>(to)
, 0
, sz_ + term_len
, flags);
NanSetPointerSafe<size_t>(datalen, bc);
return to;
}
case Nan::HEX:
{
v8::String::Value value(toStr);
sz_ = value.length();
assert(!(sz_ & 1) && "bad hex data");
if (to == NULL) {
to = new char[sz_ / 2 + term_len];
} else {
assert(buflen >= sz_ / 2 + term_len && "too small buffer");
}
NanSetPointerSafe<size_t>(
datalen
, _nan_hex_decode(to, sz_ / 2, *value, value.length()));
}
if (term_len) {
to[sz_ / 2] = '\0';
}
return to;
default:
assert(0 && "unknown encoding");
}
return to;
}
static NAN_INLINE(char* NanFromV8String(
v8::Handle<v8::Value> from
, enum Nan::Encoding encoding = Nan::UTF8
, size_t *datalen = NULL
, char *buf = NULL
, size_t buflen = 0
, int flags =
v8::String::NO_NULL_TERMINATION | v8::String::HINT_MANY_WRITES_EXPECTED
)) {
return (char *) NanRawString(from, encoding, datalen, buf, buflen, flags);
}
static NAN_INLINE(char* NanCString(
v8::Handle<v8::Value> from
, size_t *datalen
, char *buf = NULL
, size_t buflen = 0
, int flags = v8::String::NO_OPTIONS
)) {
return (char *) NanRawString(from, Nan::UTF8, datalen, buf, buflen, flags);
}
#endif
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