ios – if案例的补充

if case .SomeEnum(3) = enumType where myInt == 3 {
   //I don't need this case
} else {
   //This is the case I need
}

guard case .SomeEnum(3) = enumType where myInt == 3 else {
    //This is the case I need
}

你不能否定一种模式(据我所知)和你的第一个解决方案
使用if / else对我来说很好,代码的意图很明显
可见.

switch语句可以替代：

switch enumType {
case .SomeEnum(3) where myInt == 3:
    break  // I don't need this case
default:
    // This is the case I need
    // ...
}

关于你的评论

Also,guard expects me to return from the function.

这并不完全正确.您应该离开当前范围.
所以这将按预期编译和工作：

repeat {
    guard case .SomeEnum(3) = enumType where myInt == 3 else {
        // This is the case I need
        // ...
        break
    }
} while false

但我不认为这是一个更好的解决方案.