--allow-ffi

在使用 权限模型 时，默认情况下该过程将无法使用 FFI API。尝试使用 FFI API 将抛出 ERR_ACCESS_DENIED 异常，除非用户在启动 Node.js 时显式传递 --allow-ffi 标志。node:ffi 模块同样需要 --experimental-ffi 标志，并且仅在支持 FFI 的构建中可用。

🌐 When using the Permission Model, the process will not be able to use FFI APIs by default. Attempts to use FFI APIs will throw an ERR_ACCESS_DENIED exception unless the user explicitly passes the --allow-ffi flag when starting Node.js. The node:ffi module also requires the --experimental-ffi flag and is only available in builds with FFI support.

示例：

🌐 Example:

const { DynamicLibrary } = require('node:ffi');
const lib = new DynamicLibrary('mylib.so'); 拷贝

$ node --permission --experimental-ffi index.js
Error: Access to this API has been restricted. Use --allow-ffi to manage permissions.
    at node:internal/main/run_main_module:17:47 {
  code: 'ERR_ACCESS_DENIED',
  permission: 'FFI'
} 拷贝