Among other things, this mechanism allows you to maintain different preferences for different solutions as well as to keep these preferences under a VCS and automatically share them with your team members. You can set different preferences of using 'var' or explicit type for different types:.
For built-in types — applies to C built-in types. For simple types — applies to types without generic parameters. Elsewhere — applies to generic types and deconstruction declarations. For each of these preferences you can opt for using 'var', explicit type, or 'var' when evident. If you have chosen Use 'var' when evident in the previous step, you can opt to apply Visual Studio logic to decide which cases should be considered evident. To learn the differences between JetBrains Rider and Visual Studio logic, see Use 'var' when evident: what is considered evident?
The selectors in the right column allow you to set severity levels of code inspections detecting code that differs from your preferences. You can also change your preference of using 'var' keyword right in the editor, where a corresponding issue is highlighted:. In the action list, go to Inspection "Use preferred 'var' style" Configure code style and then select a desired preference:.
Your change will be saved using the smart save logic. If you need to save the modified style preference in a shared settings layer , click the Configure code style menu item or press Enter when it is selected. When configuring preferences of using 'var' keyword vs. This option seems self-explanatory but in some cases it might be unclear what is considered 'evident' and what is not. Apart from that, there are some differences between what is considered evident apparent by JetBrains Rider and by Visual Studio when both products suggest using 'var' keyword or explicit type.
Non-generic factory creation methods static methods declared in some type and returning a value of the same type. Evident when the method name contains a parent type name or one of the following substrings: "Create", "Build", "Construct", "Make", "Generate", "Produce", "New", "Instance". What is var Keyword in C and Why Resharper keep suggesting to use var? Add a Solution. Rob Philpott Nov am.
Don't get me started. Tell Resharper to shut up. Top Rated Most Recent. Accept Solution Reject Solution. Posted Nov pm CPallini. I can't tell you why ReSharper praise var over strongly typed version there is an endless debate over which one to use, and it seem that ReSharper took side in favor of var , but I can tell you that there are no difference after compilation no var in CLR, it's a compiler feature. If the compiler can't figure out the type or create an anonymous type for i it will throw an error.
The var 'type' was introduced to handle cases where the code you wrote creates a new, but anonymous type, and you are too lazy IMO to declare a type for it and use it Posted Nov pm Kornfeld Eliyahu Peter.
To me using 'var makes the most sense where the Type definition If I were going to write:. Copy Code. Posted Nov am BillWoodruff. Posted Nov pm Vishal Pand3y. Kornfeld Eliyahu Peter Nov am. For myself I like to know what type a variable is just by looking on its declaration At least that's what I've found on this issue suggests. The generated class would look something like this obviously names will be different and unpronounceable :.
The reason the compiler does this is probably efficiency, I suppose, as the TaskCompletionSource is used by both lambdas; but now as long as a reference to one of those lambdas is still referenced the reference to Request object is also maintained. I solved the problem by changing the method like this:. I suspect StreamReader constructor's parameter has a notnull attribute. Try the following:. Resharper: vars. Asked 5 Months ago Answers: 5 Viewed 28 times. It's just an option.
0コメント