Add missing cases to switch expression (IDE0072)
Property | Value |
---|---|
Rule ID | IDE0072 |
Title | Add missing cases to switch expression |
Category | Style |
Subcategory | Language rules (expression-level preferences) |
Applicable languages | C# 8.0+ |
Overview
This rule concerns specifying all the missing cases for a switch expression. A switch expression is considered incomplete with missing cases in following scenarios:
- When an enum switch expression is missing cases for one or more enum members.
- When the fall-through case
_
is missing.
Options
This rule has no associated code-style options.
Example
enum E
{
A,
B
}
class C
{
// Code with violations
int M(E e)
{
// IDE0072: Add missing cases
return e switch
{
E.A => 0,
_ => -1,
};
}
// Fixed code
int M(E e)
{
return e switch
{
E.A => 0,
E.B => 1,
_ => -1,
};
}
}
Suppress a warning
If you want to suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the rule.
#pragma warning disable IDE0072
// The code that's violating the rule is on this line.
#pragma warning restore IDE0072
To disable the rule for a file, folder, or project, set its severity to none
in the configuration file.
[*.{cs,vb}]
dotnet_diagnostic.IDE0072.severity = none
To disable all of the code-style rules, set the severity for the category Style
to none
in the configuration file.
[*.{cs,vb}]
dotnet_analyzer_diagnostic.category-Style.severity = none
For more information, see How to suppress code analysis warnings.
See also
Phản hồi
https://aka.ms/ContentUserFeedback.
Sắp ra mắt: Trong năm 2024, chúng tôi sẽ dần gỡ bỏ Sự cố với GitHub dưới dạng cơ chế phản hồi cho nội dung và thay thế bằng hệ thống phản hồi mới. Để biết thêm thông tin, hãy xem:Gửi và xem ý kiến phản hồi dành cho