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HooSharper Wiki

HooSharper provides conservative Roslyn analyzers and automatic code fixes for common C# code-style transformations.

• Install HooSharper
• Source repository
• Configuration

Rules

ID	Rule	Summary
HOO1001	Prefer an early return	Replace a final nested condition in a void method with a guard clause.
HOO1002	Omit braces for a single-statement if	Remove braces from safe one-statement if and else branches.
HOO1003	Remove a redundant else	Flatten an else after a branch that definitely terminates.
HOO1004	Prefer an early continue	Replace a final nested loop condition with a continue guard.
HOO1005	Use a type pattern	Combine an as cast and null check into a declaration pattern.
HOO1006	Simplify boolean comparison	Remove comparisons between bool expressions and literals.
HOO1007	Use TryGetValue	Combine ContainsKey and index access into TryGetValue.
HOO1008	Use a null-coalescing assignment	Replace a null guard and assignment with ??=.
HOO1009	Use ArgumentNullException.ThrowIfNull	Modernize classic argument-null guards.
HOO1010	Merge nested if statements	Combine nested boolean conditions without else branches.
HOO1011	Use Dictionary.TryAdd	Combine dictionary existence testing and insertion.
HOO1012	Use the HashSet.Add result	Avoid a separate set membership lookup.
HOO1013	Use a using declaration	Flatten a terminal using statement without changing disposal timing.
HOO1014	Use a null-coalescing expression	Replace a conditional null fallback with ??.
HOO1015	Use null-conditional access	Replace a conditional member access with ?..
HOO1016	Use string.Contains	Express string presence tests directly.
HOO1017	Simplify boolean return	Return a boolean condition directly.
HOO1018	Remove a redundant null-conditional guard	Remove a null guard already enforced by ?..
HOO1019	Use a not pattern	Move logical negation into an is not pattern.
HOO1020	Wrap long fluent chains	Wrap chains beyond 140 characters with leading dots.

All rules use category HooSharper.CodeStyle, default to Info severity, are enabled by default, and provide Fix All support.