node_modules/node-pty/node_modules/nan/nan_converters.h

   1 /*********************************************************************
   2  * NAN - Native Abstractions for Node.js
   3  *
   4  * Copyright (c) 2018 NAN contributors
   5  *
   6  * MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
   7  ********************************************************************/
   8
   9 #ifndef NAN_CONVERTERS_H_
  10 #define NAN_CONVERTERS_H_
  11
  12 namespace imp {
  13 template<typename T> struct ToFactoryBase {
  14   typedef MaybeLocal<T> return_t;
  15 };
  16 template<typename T> struct ValueFactoryBase { typedef Maybe<T> return_t; };
  17
  18 template<typename T> struct ToFactory;
  19
  20 template<>
  21 struct ToFactory<v8::Function> : ToFactoryBase<v8::Function> {
  22   static inline return_t convert(v8::Local<v8::Value> val) {
  23     if (val.IsEmpty() || !val->IsFunction()) return MaybeLocal<v8::Function>();
  24     return MaybeLocal<v8::Function>(val.As<v8::Function>());
  25   }
  26 };
  27
  28 #define X(TYPE)                                                                \
  29     template<>                                                                 \
  30     struct ToFactory<v8::TYPE> : ToFactoryBase<v8::TYPE> {                     \
  31       static inline return_t convert(v8::Local<v8::Value> val);                \
  32     };
  33
  34 X(Boolean)
  35 X(Number)
  36 X(String)
  37 X(Object)
  38 X(Integer)
  39 X(Uint32)
  40 X(Int32)
  41
  42 #undef X
  43
  44 #define X(TYPE)                                                                \
  45     template<>                                                                 \
  46     struct ToFactory<TYPE> : ValueFactoryBase<TYPE> {                          \
  47       static inline return_t convert(v8::Local<v8::Value> val);                \
  48     };
  49
  50 X(bool)
  51 X(double)
  52 X(int64_t)
  53 X(uint32_t)
  54 X(int32_t)
  55
  56 #undef X
  57 }  // end of namespace imp
  58
  59 template<typename T>
  60 inline
  61 typename imp::ToFactory<T>::return_t To(v8::Local<v8::Value> val) {
  62   return imp::ToFactory<T>::convert(val);
  63 }
  64
  65 #if defined(V8_MAJOR_VERSION) && (V8_MAJOR_VERSION > 4 ||                      \
  66   (V8_MAJOR_VERSION == 4 && defined(V8_MINOR_VERSION) && V8_MINOR_VERSION >= 3))
  67 # include "nan_converters_43_inl.h"
  68 #else
  69 # include "nan_converters_pre_43_inl.h"
  70 #endif
  71
  72 #endif  // NAN_CONVERTERS_H_