inut参数在闭包中崩溃Swift编译器 [英] inout parameter in closure crashes the Swift compiler

问题描述

所有我需要做的是在Swift中启动一个新项目，并添加到 main.swift

All I need to do is start a new project in Swift and add to main.swift

struct Foo {
  let bar: (inout baz: String) -> ()
}

当我尝试构建时，我得到一个错误：

由于信号命令失败：分段故障：11

When I try to build I get an error:
Command failed due to signal: Segmentation fault: 11

我做错了什么？

Am I doing anything wrong?

我认为不支持闭包中的 inout 参数，但是如果我定义一个闭包像这样：

I thought that perhaps inout parameters in closures are not supported, but if I define a closure like so:

let baz: (inout baz: String) -> () = { baz in
  baz += "x"
  return
}

甚至

var baz: (inout baz: String) -> ()?

它编译并运行OK

推荐答案

只是测试它在Swift 1.2随Xcode 6.3测试版，它编译成功。
所以这绝对是一个编译器的错误，他们在上一个版本

Just tested it in Swift 1.2 shipped with Xcode 6.3 beta, and it compiled successfully. So it was definitely a bug on the compiler that they solved in the last release

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