Cannot Optionalize Class Getters

TypeScript Version: 2.2.1

Code

class Person {
  firstName: string;
  lastName: string;

  get fullName?() {
    return this.firstName + ' ' + this.lastName;
  }
}

Expected behavior:

Since fullName is optional the following should work:

const Me: Person = {
  firstName: 'Foo',
  lastName: 'Bar'
}

Actual behavior:

A syntax error occurs on this line get fullName?() {

I'm not sure if omitting the ability to optionalize getters was by design or not. If it was by design, I'd love to know the reasoning behind it.

该 issue 没有指出源文件或测试。先使用 TypeScript 2.2.1 示例复现语法错误，并查看关于可选 getter 的现有讨论。完成条件是确定 get fullName?() 的行为，并进行与该决定相符的验证。