Roslynator

• A collection of 110+ analyzers and 150+ refactorings for C#, powered by Roslyn.
• Release Notes

Documentation

• Refactorings

Options

• Refactorings can be enabled/disabled in Visual Studio options

Distribution

Roslynator

• Visual Studio extension that contains both analyzers and refactorings.

Roslynator Refactorings

• Visual Studio extension that contains only refactorings.

C# Analyzers

• NuGet package that contains only analyzers.

List of Analyzers

• RCS1001 - Add braces
• RCS1002 - Remove braces
• RCS1003 - Add braces to if-else
• RCS1004 - Remove braces from if-else
• RCS1005 - Simplify nested using statement
• RCS1006 - Merge else clause with nested if statement
• RCS1007 - Avoid embedded statement
• RCS1008 - Use explicit type instead of 'var' (when the type is not obvious)
• RCS1009 - Use explicit type instead of 'var' (foreach variable)
• RCS1010 - Use 'var' instead of explicit type (when the type is obvious)
• RCS1012 - Use explicit type instead of 'var' (even if the type is obvious)
• RCS1013 - Use predefined type
• RCS1014 - Avoid implicitly-typed array
• RCS1015 - Use 'nameof' operator
• RCS1016 - Use expression-bodied member
• RCS1017 - Avoid multiline expression body
• RCS1018 - Add default access modifier
• RCS1019 - Reorder modifiers
• RCS1020 - Simplify Nullable to T?
• RCS1021 - Simplify lambda expression
• RCS1022 - Simplify lambda expression parameter list
• RCS1023 - Format empty block
• RCS1024 - Format accessor list
• RCS1025 - Format each enum member on a separate line
• RCS1026 - Format each statement on a separate line
• RCS1027 - Format embedded statement on a separate line
• RCS1028 - Format switch section's statement on a separate line
• RCS1029 - Format binary operator on next line
• RCS1030 - Add empty line after embedded statement
• RCS1031 - Remove redundant braces
• RCS1032 - Remove redundant parentheses
• RCS1033 - Remove redundant boolean literal
• RCS1034 - Remove redundant 'sealed' modifier
• RCS1035 - Remove redundant comma in initializer
• RCS1036 - Remove redundant empty line
• RCS1037 - Remove trailing white-space
• RCS1038 - Remove empty statement
• RCS1039 - Remove empty attribute argument list
• RCS1040 - Remove empty else clause
• RCS1041 - Remove empty initializer
• RCS1042 - Remove enum default underlying type
• RCS1043 - Remove 'partial' modifier from type with a single part
• RCS1044 - Remove original exception from throw statement
• RCS1045 - Rename private field according to camel case with underscore
• RCS1046 - Asynchronous method name should end with 'Async'
• RCS1047 - Non-asynchronous method name should not end with 'Async'
• RCS1048 - Replace anonymous method with lambda expression
• RCS1049 - Simplify boolean comparison
• RCS1050 - Add constructor argument list
• RCS1051 - Wrap conditional expression condition in parentheses
• RCS1052 - Declare each attribute separately
• RCS1054 - Merge local declaration with return statement
• RCS1055 - Avoid semicolon at the end of declaration
• RCS1056 - Avoid usage of using alias directive
• RCS1057 - Add empty line between declarations
• RCS1058 - Simplify assignment expression
• RCS1059 - Avoid locking on publicly accessible instance
• RCS1060 - Declare each type in separate file
• RCS1061 - Merge if statement with nested if statement
• RCS1062 - Avoid interpolated string with no interpolation
• RCS1063 - Avoid usage of do statement to create an infinite loop
• RCS1064 - Avoid usage of for statement to create an infinite loop
• RCS1065 - Avoid usage of while statement to create an inifinite loop
• RCS1066 - Remove empty finally clause
• RCS1067 - Remove empty argument list
• RCS1068 - Simplify logical not expression
• RCS1069 - Remove unnecessary case label
• RCS1070 - Remove redundant default switch section
• RCS1071 - Remove redundant base constructor call
• RCS1072 - Remove empty namespace declaration
• RCS1073 - Replace if statement with return statement
• RCS1074 - Remove redundant constructor
• RCS1075 - Avoid empty catch clause that catches System.Exception
• RCS1076 - Format declaration braces
• RCS1077 - Simplify LINQ method chain
• RCS1078 - Replace string.Empty with ""
• RCS1079 - Throwing of new NotImplementedException
• RCS1080 - Replace 'Any' method with 'Count' or 'Length' property
• RCS1081 - Split variable declaration
• RCS1082 - Replace 'Count' method with 'Count' or 'Length' property
• RCS1083 - Replace 'Count' method with 'Any' method
• RCS1084 - Replace conditional expression with coalesce expression
• RCS1085 - Replace property with auto-implemented property
• RCS1086 - Use linefeed as newline
• RCS1087 - Use carriage return + linefeed as newline
• RCS1088 - Avoid usage of tab
• RCS1089 - Use postfix unary operator instead of assignment
• RCS1090 - Add 'ConfigureAwait(false)' to awaitable expression
• RCS1091 - Remove empty region
• RCS1092 - Add empty line after last statement in do statement
• RCS1093 - Remove file with no code
• RCS1094 - Declare using directive on top level
• RCS1095 - Use C# 6.0 dictionary initializer
• RCS1096 - Use bitwise operation instead of 'HasFlag' method
• RCS1097 - Remove redundant 'ToString' call
• RCS1098 - Avoid 'null' on the left side of a binary expression
• RCS1099 - Default label should be last label in switch section
• RCS1100 - Format documentation summary on a single line
• RCS1101 - Format documentation summary on multiple lines
• RCS1102 - Mark class as static
• RCS1103 - Simplify if-else statement
• RCS1104 - Simplify conditional expression
• RCS1105 - Merge interpolation into interpolated string
• RCS1106 - Remove empty destructor
• RCS1107 - Remove redundant 'ToCharArray' call
• RCS1108 - Add static modifier to all partial class declarations
• RCS1109 - Use 'Cast' method instead of 'Select' method
• RCS1110 - Declare type inside namespace
• RCS1111 - Add braces to switch section with multiple statements
• RCS1112 - Combine 'Enumerable.Where' method chain
• RCS1113 - Use 'string.IsNullOrEmpty' method
• RCS1114 - Remove redundant delegate creation

List of Refactorings

• Add boolean comparison
• Add braces
• Add braces to if-else
• Add braces to switch section
• Add braces to switch sections
• Add cast expression
• Add default value to parameter
• Add default value to return statement
• Add exception to documentation comment
• Add identifier to variable declaration
• Add parameter name to argument
• Add parameter name to parameter
• Add using directive
• Add using static directive
• Call 'ConfigureAwait(false)'
• Call 'To...' method
• Change explicit type to 'var'
• Change method return type to 'void'
• Change method/property/indexer type according to return expression
• Change method/property/indexer type according to yield return expression
• Change type according to expression
• Change 'var' to explicit type
• Check parameter for null
• Collapse to initalizer
• Comment out member
• Comment out statement
• Copy documentation comment from base member
• Create condition from boolean expression
• Duplicate argument
• Duplicate member
• Duplicate parameter
• Duplicate statement
• Expand assignment expression
• Expand coalesce expression
• Expand event
• Expand expression-bodied member
• Expand initializer
• Expand lambda expression body
• Expand property
• Expand property and add backing field
• Extract declaration from using statement
• Extract expression from condition
• Extract generic type
• Extract statement(s)
• Extract type declaration to a new file
• Format accessor braces
• Format argument list
• Format binary expression
• Format conditional expression
• Format expression chain
• Format initializer
• Format parameter list
• Generate base constructors
• Generate 'OnEvent' method
• Generate switch sections
• Initialize local with default value
• Inline method
• Insert string interpolation
• Introduce and initialize field
• Introduce and initialize property
• Introduce constructor
• Introduce field to lock on
• Make member abstract
• Mark all members as static
• Mark member as static
• Merge assignment expression with return statement
• Merge attributes
• Merge if statements
• Merge interpolation into interpolated string
• Merge local declarations
• Merge string literals
• Merge string literals into multiline string literal
• Negate binary expression
• Negate boolean literal
• Negate operator
• Notify property changed
• Parenthesize expression
• Promote local to parameter
• Remove all comments
• Remove all comments (except documentation comments)
• Remove all documentation comments
• Remove all member declarations
• Remove all preprocessor directives
• Remove all region directives
• Remove all statements
• Remove all switch sections
• Remove braces
• Remove braces from if-else
• Remove braces from switch section
• Remove braces from switch sections
• Remove comment
• Remove condition from last else clause
• Remove directive and related directives
• Remove empty lines
• Remove interpolation
• Remove member
• Remove member declarations above/below
• Remove parameter name from argument
• Remove parentheses
• Remove property initializer
• Remove region
• Remove statement
• Remove statements from switch sections
• Remove using alias directive
• Rename backing field according to property name
• Rename identifier according to type name
• Rename method according to type name
• Rename parameter according to its type name
• Rename property according to type name
• Replace "" with 'string.Empty'
• Replace anonymous method with lambda expression
• Replace 'Any/All' with 'All/Any'
• Replace as expression with cast expression
• Replace conditional expression with expression
• Replace conditional expression with if-else
• Replace constant with field
• Replace 'Count/Length' with 'Length/Count'
• Replace do statement with while statement
• Replace equals expression with string.Equals
• Replace equals expression with string.IsNullOrEmpty
• Replace equals expression with string.IsNullOrWhiteSpace
• Replace field with constant
• Replace for statement with foreach statement
• Replace foreach statement with for statement
• Replace 'HasFlag' with bitwise operation
• Replace if-else with conditional expression
• Replace if-else with switch statement
• Replace increment operator with decrement operator
• Replace interpolated string with interpolation expression
• Replace interpolated string with string literal
• Replace method invocation with '[]'
• Replace method with property
• Replace null literal expression with default expression
• Replace prefix operator to postfix operator
• Replace property with method
• Replace regular string literal with verbatim string literal
• Replace string literal with character literal
• Replace 'string.Empty' with ""
• Replace 'string.Format' with interpolated string
• Replace switch statement with if-else
• Replace verbatim string literal with regular string literal
• Replace verbatim string literal with regular string literals
• Replace while statement with do statement
• Reverse for loop
• Simplify lambda expression
• Split attributes
• Split variable declaration
• Swap expressions in binary expression
• Swap expressions in conditional expression
• Swap member declarations
• Swap statements in if-else
• Uncomment
• Use expression-bodied member
• Wrap in #if directive
• Wrap in condition
• Wrap in region
• Wrap in try-catch
• Wrap in using statement