CodeRush 19.1.7

Diagnostics
This release gets the following code analysis diagnostics:

• Unused local variable - identifies local variables which are never used in your code and can be safely deleted.
• Local variable can be replaced with discard - identifies unused or assigned only variables which can be replaced with a discard.
• Redundant field initialization - identifies redundant field initialization values which can be safely removed.
• The type can be moved to a separate file - identifies types whose name differ from the file name. These types can be moved to a separate file (with the same name as the type) to improve code readability and discoverability.
• The type name does not correspond to the file name - this issue appears in the Code Issues window if a type name does not match the name of the file that contains it.
• Environment.NewLine can be used - identifies "\r\n" string values, which can be converted to Environment.NewLine calls.
• String.Compare can be used - identifies string comparison expressions which can be replaced with a String.Compare call.
• String.IsNullOrEmpty can be used - identifies expressions that test a string for null (or "Nothing" in Visual Basic) or an empty value, which can be replaced with a String.IsNullOrEmpty call.
• String interpolation can be used - identifies composed string expressions which can be converted to interpolated strings.

Refactorings
New refactorings to help you remove unused variables from your code:

• Remove Variable.
• Remove Variable with its Initializer.
• Remove Discard Variable.
• Remove Discard Variable refactoring - replaces unused or assigned-only variables with discard.

Code Cleanups

• New Cleanup Rules
  • You can use the Code Cleanup feature with the Remove unused variables rule to remove unused variables across multiple files at once.
  • The Replace unused variables with discard code cleanup rule replaces unused or assigned only variables with discard.
  • To apply these code cleanup refactorings, make sure the corresponding rules are enabled in the Editor | Language | Code Cleanup options page.
• Run Code Cleanup for Folder
  • You can now run Code Cleanup for a selected folder (or folders) in the Solution Explorer. Simply right-click the folder you want to clean and select CodeRush Cleanup.
  • The progress window shows what files CodeRush is cleaning
  • If code cleanup is cancelled while it is still in progress, all code remains unchanged.

Code Places Enhancements

• Favorite Code Places
  • You can favorite code places and access them instantly in the Favorites tab. Favorite places are saved between sessions.
  • To favorite a code place, right-click a desired member in the 'File Places' tab, select 'Add to Favorites' -> 'Add to new group' in the invoked context menu, enter a group name in the New Favorites Group dialog and press Enter.
  • CodeRush marks the favorite code place with a star and adds the code place to the newly-created group in the Favorites tab.
  • You can also add code places to different favorites groups. Right-click a code place in the 'File Places' tab, and select the desired group in the 'Add to Favorites' sub menu.
• Collapse/Expand Code Places
  • The new Collapse All/Expand All buttons in the 'Code Places' window let you quickly collapse or expand all the code places and the corresponding members in the code editor.
• Selection Expand/Reduce Enhancement
  • When using the Selection Expand/Reduce feature you can see a code preview in the code editor if a portion of the selected code falls outside the screen boundaries.
  • To enable this new code preview, go to the 'Editor | All Languages | Selection' options page and enable the "Show code preview hints when selection changes" option.