如何使这段代码更具可读性?
我今天写了这篇文章,我感到很羞愧。我需要做什么才能使这些混乱的东西变得更加准确和可读?
switch ((RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType)Enum.Parse(typeof(RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType), ihdType.Value))
{
//REF:This can (but should it?) be refactored through strategy pattern
case RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType.ReportPlanWithEffects:
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffects(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo)));
break;
case RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType.ReportPlanWithEffectsForFacts:
DateTime factDate;
try
{
factDate = Convert.ToDateTime(ihdDate.Value);
}
catch(FormatException)
{
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffectsForFacts(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo), DateTime.MinValue));
break;
}
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffectsForFacts(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo), factDate));
break;
default:
break;
}
I wrote this today and I'm ashamed. What do I need to do to make this chaotic stuff more accurate and readable amongst others?
switch ((RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType)Enum.Parse(typeof(RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType), ihdType.Value))
{
//REF:This can (but should it?) be refactored through strategy pattern
case RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType.ReportPlanWithEffects:
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffects(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo)));
break;
case RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType.ReportPlanWithEffectsForFacts:
DateTime factDate;
try
{
factDate = Convert.ToDateTime(ihdDate.Value);
}
catch(FormatException)
{
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffectsForFacts(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo), DateTime.MinValue));
break;
}
grvEconomicCriteria.DataSource = RequestReportsCalculatingStoredProcedures.ReportsDataParser(
RequestReportsCalculatingStoredProcedures.ReportPlanWithEffectsForFacts(requestNo, RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo(requestNo), factDate));
break;
default:
break;
}
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您始终可以为超长类型使用别名
RequestReportsCalculateStoredProcedures
:注意:您需要在
using
指令中使用完全限定名称(包括命名空间)。You can always use an alias for the very long type
RequestReportsCalculatingStoredProcedures
:Note: You will need to use the fully qualified name (including namespace) in the
using
directive.除了其他人所说的缩短名称等之外,您应该考虑将代码从 case 语句中提取到函数调用中,这样您最终会得到类似的内容,
这有助于整理一些东西。
On top of what the others have said about shortening the names etc, you should think about extracting the code from the case statement into function calls, so you end up with something like
That helps to tidy things up a bit.
我坚信描述性变量、类和方法名称。我总是会选择清晰而不是简洁,但是一个易于实施的规则是,如果你的名字中有一部分总是重复,你可以将其删除。例如,您有:
RequestReportsCalculateStoredProcedures
这很好。它清楚地解释了它是什么。但是,该类或对象的成员也以该名称开头,并在末尾加上不同的名称。例如:
RequestReportStoredProcedureType
这可以缩写为 StoredProcedureType,甚至可以缩短为 procedureType。
我知道许多程序员会争论诸如 RRCalcSP 之类的东西或其他一些完全不清楚的命名约定,但我永远不会为了避免换行等而牺牲命名清晰度。
老实说,您在原始示例中所拥有的内容并不混乱或可耻。它太长了,您必须处理换行。
此外,大量使用注释可以使事情变得更加清晰。
I am a strong believer in descriptive variable, class and method names. I would always opt for clarity over brevity, however one easy to implement rule is that if you have a part of your names that always repeats, you can pare that out. For example, you have:
RequestReportsCalculatingStoredProcedures
That's good. It explains what it is clearly. However you've got members of that class or object that also start with that name plus differentiating names at the end. For example:
RequestReportStoredProcedureType
This could be shortened to StoredProcedureType, or even arguably ProcedureType.
I know many programmers would argue for something like RRCalcSP or some other completely unclear naming conventions, but I would never sacrifice naming clarity for avoiding line wrap, etc.
Honestly what you have in your original example is not chaotic or shameful. It's just so long that you have to deal with line wrap.
Also, generous use of comments make things much clearer.
老实说,这里最大的问题之一就是变量名称的长度。
显然,你应该给出变量/类型/等。描述性名称。但到了一定程度就变得有点极端了。我工作中的一个人因给方法命名而臭名昭著,例如:
DoSomethingVerySpecificHereIsOneOfItsSideEffectsAndHereIsAnother
在您的情况下,我注意到大量的冗余。例如,您有一个名为
RequestReportsCalculateStoredProcedures
的类,然后在该类中您似乎有一个名为RequestReportStoredProcedureType
的枚举。由于枚举已经是RequestReportsCalculateStoredProcedures
中的嵌套类型,也许您可以将其称为Type
?或者,缩短这些名称(至少在这个文件中)的非常有效方法是使用简单的
using
声明:然后看看您的代码会发生什么:
是这样吗?更具可读性?在我看来,是的,主要是因为它看起来不那么令人畏惧。不过,显然您正在做出权衡,因为您使用的别名不如原始名称立即明显。就像其他所有事情一样,这最终取决于个人判断。
Honestly, one of the biggest issues here is just the length of your variable names.
Obviously, you should give variables/types/etc. descriptive names. But there's a point at which it gets a bit extreme. One guy at my work is notorious for giving methods names like:
DoSomethingVerySpecificHereIsOneOfItsSideEffectsAndHereIsAnother
In your case, I notice a great deal of redundancy. For example, you have a class called
RequestReportsCalculatingStoredProcedures
, and then within that class you seem to have an enum calledRequestReportStoredProcedureType
. Since the enum is already a nested type withinRequestReportsCalculatingStoredProcedures
, maybe you could just call itType
?Alternatively, a very effective way to shorten these names (at least in this file) would be to use a simple
using
declaration:Then look what happens to your code:
Is this more readable? In my opinion, yes, primarily because it's simply less daunting to look at. Obviously you're making a trade-off, though, as the aliased names you're using are less immediately obvious than the original names. Like just about everything else, it ultimately comes down to personal judgment.
如果您对所使用的代码有一定的控制权,我建议:
将枚举 RequestReportsCalculateStoredProcedures.RequestReportStoredProcedureType 引入外部范围。内部名称已经足够详细,您不需要外部名称来澄清。
尝试将长类名替换为能够阐明其意图的名称,而不描述其如何完成工作的细节。
提供不需要算法参数的 RequestReportsCalculatedStoredProcedures.ReportPlanWithEffectsForFacts 的重载,因为您显然可以通过 requestNo 来查找它。当您不需要提供非标准算法时,这消除了对 RequestReportsCalculatedStoredProcedures.GetAlgorithmNoByRequestNo 的详细调用。
If you have some control over the code that you're using, I'd recommend:
Bring the enum RequestReportsCalculatingStoredProcedures.RequestReportStoredProcedureType to outer scope. The inner name is already verbose enough that you don't need the outer name to clarify.
Try to replace the long class names with names that clarify their intent, without describing the details of how they accomplish their job.
Provide an overload of RequestReportsCalculatingStoredProcedures.ReportPlanWithEffectsForFacts that doesn't require the algorithm parameter, since you can apparently look it up by the requestNo anyway. That eliminates the verbose call to RequestReportsCalculatingStoredProcedures.GetAlgorithmNoByRequestNo when you don't need to provide a non-standard algorithm.
诚然,这个答案利用了这个问题的其他答案,但我认为使一些建议更加明确会有所帮助。
我将 RequestReportsCalculateStoredProcedure 类重命名为 RequestReports。对我来说,StoredProcedure 部分似乎是一个与其他人无关的实现细节。我不确定“计算”这个词会带来什么,所以我也删除了它。
我将枚举 RequestReportStoredProcedureType 重命名为 ReportPlan,因为它似乎最适合上下文(ReportType 也是一种可能性)。额外的冗长内容被删除,类似于包含它的类被重命名的原因。我把它留在课堂上,因为它似乎提供了一些上下文,并且随着名称的缩短,这似乎是一个好主意。
从方法调用中删除算法参数的建议,因为它可以从已传递的参数派生,这似乎是一个不错的建议。
鉴于这些更改,代码将如下所示:
Admittedly this answer is leveraging on other answers to this question, but I thought it would be helpful to make some of the suggestions more explicit.
The class RequestReportsCalculatingStoredProcedure I would rename to RequestReports. The StoredProcedure portion to me seems to be an implementation detail that is nobody else's business. I am not sure what the word Calculating brings to the table so I removed that also.
The enumeration RequestReportStoredProcedureType I would rename to ReportPlan as that seemed to fit the context best (ReportType is also a possibility). The additional wordiness was removed similar to the reasons the class that encompasses it was renamed. I left it inside the class as it seems to provide some context, and with the names shortened this seemed like a good idea.
The suggestions to remove the algorithm parameter from the method calls since it can be derived from an already passed parameter seemed like a good one.
Given these changes the code would then look like the following:
查看使用命令。
我也相信(尚未检查),但您可以执行类似以下操作:
然后,您可以引用
myShortCut
,而不是引用大行。Have a look at the using command.
Also I beleive (haven't checked) but you can do something similar to:
Then instead of referencing the large lines you can reference
myShortCut
.您可以应用您评论的策略模式,或者使用带有基于类型的委托(Func<> 或 Action<>)的字典来执行某些操作。您可以使用 DateTime.TryParse() 方法来缩短 DateTime try/catch 时间。除此之外,代码中最不可恢复的是长名称,因此您可能需要在开始代码之前将其中一些名称放入变量中
希望它有所帮助
You could apply the strategy pattern as you commented, or use a Dictionary with delegates(Func<> or Action<>) that based on a type does something. You can shorten the DateTime try/catch by using DateTime.TryParse() method. Other than that, what is most unredeable from your code is the long names, so you may want to put some of those in variable before starting your code
hope it helps
我建议从 case 语句中提取公共部分
编辑来进一步完善它
您可以通过计算唯一一次
:像这样:)
i'd advocate extracting the common parts out of the case statement
You could refine it event more by calculating the
only once
edit: like this :)