JetBrains Rider 2018.1 Help

Solution-Wide Code Inspections

Most of JetBrains Rider's code inspections only need the source code of a single file to detect code issues. In addition to these inspections, JetBrains Rider provides solution-wide inspections for code issues which are only detectable in the scope of the entire solution — e.g. to detect an unused non-private member JetBrains Rider needs to analyze the entire solution.

For the solution-wide inspection to work, you need either or both of the following:

  • The simplified global usage checking is enabled — Show unused non-private type members when solution-wide analysis is off on the Editor | Inspection Settings page of JetBrains Rider settings (Ctrl+Alt+S).
  • The solution-wide analysis is enabled — Enable solution-wide analysis on the Editor | Inspection Settings page of JetBrains Rider settings (Ctrl+Alt+S).

Note that even if a symbol has no direct usages in your solution and JetBrains Rider warns you about it, there could be cases where symbols are used indirectly — e.g. via reflection — or they could just be designed as public API. In all those cases you would want to suppress the usage-checking inspection for the symbol in question, and there are several ways to do so:

Similarly to any other inspection, you can also disable or change severity level of any solution-wide inspection. This can be done right from the Alt+Enter menu on a code issue that the inspection highlights. Alternatively, you can disable/enable or change severity levels of inspections on the Editor | Inspection Severity page of JetBrains Rider settings (Ctrl+Alt+S) — solution-wide inspections are marked with the Non-private accessibility label. Note that you cannot set the 'Error' severity for solution-wide inspections.

When the solution-wide analysis is enabled, issues detected by the solution-wide inspections are highlighted in the opened files in the same way as other issues, and they also appear in the Inspection Results window when you run code inspection in specific scope. However, they do not appear in the Errors in Solution window.

JetBrains Rider provides the following solution-wide inspections:

InspectionLanguageDefault Severity
Auto-property can be made get-only (non-private accessibility) C# Suggestion
Class can be made sealed(non-inheritable) (non-private accessibility) C# Disabled
Convert local variable or field to constant (non-private accessibility) C# Hint
Field can be made readonly (non-private accessibility) C# Suggestion
Member can be made private (non-private accessibility) C# Suggestion
Member can be made protected (non-private accessibility) C# Suggestion
Member can be made static(shared) (non-private accessibility) C# Hint
Parameter type can be IEnumerable<T> (non-private accessibility) C# Hint
Return type can be IEnumerable<T> (non-private accessibility) C# Hint
Introduce optional parameters (non-private accessibility) C# Suggestion
Abstract or virtual(overridable) event is never invoked C# Suggestion
Auto-property accessor is never used (non-private accessibility) C# Warning
Class is never instantiated (non-private accessibility) C# Suggestion
Collection is never updated (non-private accessibility) C# Warning
Collection's content is never queried (non-private accessibility) C# Warning
Event is never subscribed to (non-private accessibility) C# Suggestion
Non-accessed field (non-private accessibility) C# Suggestion
Suspicious type conversion or check C# Warning
Unassigned field (non-private accessibility) C# Suggestion
Class with virtual(overridable) members never inherited (non-private accessibility) C# Suggestion
Method return value is never used (non-private accessibility) C# Suggestion
Parameter is only used for precondition check (non-private accessibility) C# Suggestion
Redundant method overload (non-private accessibility) C# Suggestion
Type member is never accessed via base type (non-private accessibility) C# Suggestion
Type member is only used in overrides (non-private accessibility) C# Suggestion
Type or member is never used (non-private accessibility) C# Suggestion
Unused parameter (non-private accessibility) C# Suggestion
Virtual(overridable) member is never overridden (non-private accessibility) C# Suggestion
Auto-property can be made get-only (non-private accessibility) VB.NET Suggestion
Class can be made sealed(non-inheritable) (non-private accessibility) VB.NET Disabled
Convert local variable or field to constant (non-private accessibility) VB.NET Hint
Field can be made readonly (non-private accessibility) VB.NET Suggestion
Member can be made private (non-private accessibility) VB.NET Suggestion
Member can be made protected (non-private accessibility) VB.NET Suggestion
Member can be made static(shared) (non-private accessibility) VB.NET Hint
Parameter type can be IEnumerable<T> (non-private accessibility) VB.NET Hint
Return type can be IEnumerable<T> (non-private accessibility) VB.NET Hint
Abstract or virtual(overridable) event is never invoked VB.NET Suggestion
Auto-property accessor is never used (non-private accessibility) VB.NET Warning
Class is never instantiated (non-private accessibility) VB.NET Suggestion
Collection is never updated (non-private accessibility) VB.NET Warning
Collection's content is never queried (non-private accessibility) VB.NET Warning
Event is never subscribed to (non-private accessibility) VB.NET Suggestion
Non-accessed field (non-private accessibility) VB.NET Suggestion
Suspicious type conversion or check VB.NET Warning
Unassigned field (non-private accessibility) VB.NET Suggestion
Class with virtual(overridable) members never inherited (non-private accessibility) VB.NET Suggestion
Method return value is never used (non-private accessibility) VB.NET Suggestion
Parameter is only used for precondition check (non-private accessibility) VB.NET Suggestion
Type member is never accessed via base type (non-private accessibility) VB.NET Suggestion
Type member is only used in overrides (non-private accessibility) VB.NET Suggestion
Type or member is never used (non-private accessibility) VB.NET Suggestion
Unused parameter (non-private accessibility) VB.NET Suggestion
Virtual(overridable) member is never overridden (non-private accessibility) VB.NET Suggestion
Type or member is never used (non-private accessibility) JavaScript Suggestion
Non-accessed field (non-private accessibility) ASP.NET Suggestion
Type or member is never used (non-private accessibility) ASP.NET Suggestion
Member can be made private (non-private accessibility) XAML Suggestion
Member can be made protected (non-private accessibility) XAML Suggestion
Non-accessed field (non-private accessibility) XAML Suggestion
Type or member is never used (non-private accessibility) XAML Suggestion
Non-accessed field (non-private accessibility) HttpHandler or WebService Suggestion
Type or member is never used (non-private accessibility) HttpHandler or WebService Suggestion
Last modified: 11 July 2018

See Also