Method constructor

lib/internal/errors.js:282–384

(key, context)

// and may have .path and .dest.
class SystemError extends Error {
  constructor(key, context) {
    super();
    const prefix = getMessage(key, [], this);
    let message = `${prefix}: ${context.syscall} returned ` +
                  `${context.code} (${context.message})`;

    if (context.path !== undefined)
      message += ` ${context.path}`;
    if (context.dest !== undefined)
      message += ` => ${context.dest}`;

    this.code = key;

    ObjectDefineProperties(this, {
      [kIsNodeError]: {
        __proto__: null,
        value: true,
        enumerable: false,
        writable: false,
        configurable: true,
      },
      name: {
        __proto__: null,
        value: 'SystemError',
        enumerable: false,
        writable: true,
        configurable: true,
      },
      message: {
        __proto__: null,
        value: message,
        enumerable: false,
        writable: true,
        configurable: true,
      },
      info: {
        __proto__: null,
        value: context,
        enumerable: true,
        configurable: true,
        writable: false,
      },
      errno: {
        __proto__: null,
        get() {
          return context.errno;
        },
        set: (value) => {
          context.errno = value;
        },
        enumerable: true,
        configurable: true,
      },
      syscall: {
        __proto__: null,
        get() {
          return context.syscall;
        },