Vm里使用eval问题

[FoxNick]

Vm没法直接使用eval 通过注入方式 存在作用域问题 没法获取结果

[caoccao]

Please check #425 out.

[FoxNick]

// Set a callback that disallows the code generation.
ModifyCodeGenerationFromStringsResult CodeGenerationDisallowed(
V8LocalContext context, V8LocalValue source, bool is_code_like) {
return {false, {}};
}

JNIEXPORT void JNICALL Java_com_caoccao_javet_interop_V8Native_allowCodeGenerationFromStrings
(JNIEnv* jniEnv, jobject caller, jlong v8RuntimeHandle, jboolean allow) {
RUNTIME_HANDLES_TO_OBJECTS_WITH_SCOPE(v8RuntimeHandle);
v8Context->AllowCodeGenerationFromStrings(allow);
#ifdef ENABLE_NODE
if(!allow) {
v8Context->GetIsolate()->SetModifyCodeGenerationFromStringsCallback(&CodeGenerationDisallowed);
}
#endif
}

注释掉 //v8Isolate->SetModifyCodeGenerationFromStringsCallback(nullptr); allowCodeGenerationFromStrings接口判断 设置一个禁用回调