我有以下for循环：
func test(_ fourHundredYears: [CountPatternPair]) {
// Iterate over `CountPatternPairs` containing hundred-year `CountPatternPairs`
for hundredYearCPP in fourHundredYears {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... hundredYearCPP.0 {
// Iterate over `CountPatternPairs` containing four-year `CountPatternPairs`
for fourYearCPP in (hundredYearCPP.1 as! [CountPatternPair]) {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... fourYearCPP.0 {
// Iterate over `CountPatternPairs` containing year `CountPatternPairs
for yearCPP in (fourYearCPP.1 as! [CountPatternPair]) {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... yearCPP.0 {
// Iterate over each month in the array element of the `CountPatternPair`
for month in (yearCPP.1 as! [[DayTotalPair]]) {
// Iterate over each `DayTotalPair` in each month
for dtp in month {
oeod.append(dtp.1, over: dtp.0)
i += dtp.0
if minLimit.equals(oeod.at(oeod.count - 1)) { return }
}
}
}
}
}
}
}
}
}
我写这本怪兽来测试某些逻辑，目的是当逻辑正常工作时，我会将其重构为递归函数以使其更加简洁。我做到了，但是递归版本不起作用。弄清楚我错过了什么，但最终我将其搁置了，因为对于我的一生，我看不到它是什么。仍在测试中，我决定将一些循环逻辑提取到自己的函数中，以使其更加简洁。不添加任何新逻辑。从我看来，并没有改变任何逻辑的执行顺序。
但令我沮丧的是，重构为单个功能的相同功能也无法正常工作。直接复制并粘贴它，仍然不起作用。尝试在extract to中使用Xcode函数，以防万一是我的复制和粘贴破坏了它，也无法正常工作。
有人可以看看上面代码的以下提取版本，以查看是否有任何事情导致其执行的逻辑不同于上面的代码？
func iterateFourHundredYears(_ fourHundredYears: [CountPatternPair]) {
// Iterate over `CountPatternPairs` containing hundred-year `CountPatternPairs`
for hundredYearCPP in fourHundredYears {
iterateHundredYearCPP(hundredYearCPP)
}
}
func iterateHundredYearCPP(_ hundredYearCPP: CountPatternPair) {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... hundredYearCPP.0 {
// Iterate over `CountPatternPairs` containing four-year `CountPatternPairs`
for fourYearCPP in (hundredYearCPP.1 as! [CountPatternPair]) {
iterateFourYearCPP(fourYearCPP)
}
}
}
func iterateFourYearCPP(_ fourYearCPP: CountPatternPair) {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... fourYearCPP.0 {
// Iterate over `CountPatternPairs` containing year `CountPatternPairs
for yearCPP in (fourYearCPP.1 as! [CountPatternPair]) {
iterateYearCPP(yearCPP)
}
}
}
func iterateYearCPP(_ yearCPP: CountPatternPair) {
// Do the below as many times as indicated by the count in the `CountPatternPair`
for _ in 1 ... yearCPP.0 {
// Iterate over each month in the array element of the `CountPatternPair`
for month in (yearCPP.1 as! [[DayTotalPair]]) {
// Iterate over each `DayTotalPair` in each month
for dtp in month {
oeod.append(dtp.1, over: dtp.0)
i += dtp.0
if minLimit.equals(oeod.at(oeod.count - 1)) { return }
}
}
}
}