nan_converters.h
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/*********************************************************************
* NAN - Native Abstractions for Node.js
*
* Copyright (c) 2017 NAN contributors
*
* MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
********************************************************************/
#ifndef NAN_CONVERTERS_H_
#define NAN_CONVERTERS_H_
namespace imp {
template<typename T> struct ToFactoryBase {
typedef MaybeLocal<T> return_t;
};
template<typename T> struct ValueFactoryBase { typedef Maybe<T> return_t; };
template<typename T> struct ToFactory;
template<>
struct ToFactory<v8::Function> : ToFactoryBase<v8::Function> {
static inline return_t convert(v8::Local<v8::Value> val) {
if (val.IsEmpty() || !val->IsFunction()) return MaybeLocal<v8::Function>();
return MaybeLocal<v8::Function>(val.As<v8::Function>());
}
};
#define X(TYPE) \
template<> \
struct ToFactory<v8::TYPE> : ToFactoryBase<v8::TYPE> { \
static inline return_t convert(v8::Local<v8::Value> val); \
};
X(Boolean)
X(Number)
X(String)
X(Object)
X(Integer)
X(Uint32)
X(Int32)
#undef X
#define X(TYPE) \
template<> \
struct ToFactory<TYPE> : ValueFactoryBase<TYPE> { \
static inline return_t convert(v8::Local<v8::Value> val); \
};
X(bool)
X(double)
X(int64_t)
X(uint32_t)
X(int32_t)
#undef X
} // end of namespace imp
template<typename T>
inline
typename imp::ToFactory<T>::return_t To(v8::Local<v8::Value> val) {
return imp::ToFactory<T>::convert(val);
}
#if defined(V8_MAJOR_VERSION) && (V8_MAJOR_VERSION > 4 || \
(V8_MAJOR_VERSION == 4 && defined(V8_MINOR_VERSION) && V8_MINOR_VERSION >= 3))
# include "nan_converters_43_inl.h"
#else
# include "nan_converters_pre_43_inl.h"
#endif
#endif // NAN_CONVERTERS_H_