node.js - 如何使用 v8::String::NewFromUtf8 的 Maybe 版本？

Question

我正在尝试针对 Node 12 构建 native Node 模块，但遇到如下错误:

warning: ‘static v8::Local<v8::String> v8::String::NewFromUtf8(v8::Isolate*, const char*, v8::String::NewStringType, int)’ is deprecated: Use maybe version [-Wdeprecated-declarations]

关于代码，例如:

v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), "some string")

我理解这个错误，但根据 v8::String 文档，我无法弄清楚如何指定 Maybe 版本...原型(prototype)看起来相同。如何使用该函数的 Maybe 版本？

Answer 1

size_t size = 100;
char *CharBuff = new char[size + 1];

v8::MaybeLocal<v8::String> result = v8::String::NewFromUtf8(
    isolate, CharBuff, v8::NewStringType::kNormal, static_cast<int>(size));