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Add code fixers for MA0138/44/46/52/56/57/58/60/69/73#1074

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meziantou merged 3 commits intomainfrom
codefixers-selected-rules
Mar 31, 2026
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Add code fixers for MA0138/44/46/52/56/57/58/60/69/73#1074
meziantou merged 3 commits intomainfrom
codefixers-selected-rules

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Why

Several rules in this range were reported as lacking code fixers, which made adoption harder and left straightforward remediations manual.

This PR adds and validates code fixes for the requested MA rules so diagnostics are actionable directly from IDE/lightbulb workflows.

What changed

  • Added new code fix providers for:
    • MA0144 (UseOperatingSystemInsteadOfRuntimeInformationFixer)
    • MA0146 (ValidateUnsafeAccessorAttributeUsageFixer)
    • MA0152 (UseTaskUnwrapFixer)
    • MA0158 (UseSystemThreadingLockInsteadOfObjectFixer)
    • MA0160 (UseContainsKeyInsteadOfTryGetValueFixer)
    • MA0169 (UseEqualsMethodInsteadOfOperatorFixer)
  • Extended existing async-suffix fixer to also support:
    • MA0156 and MA0157
  • Kept existing behavior for already-covered rules (MA0138, MA0173) and validated them in the updated targeted suite.

Tests and validation

  • Added code-fix assertions to existing rule test files (no new test files created).
  • Ran targeted tests for all impacted rule test classes:
    • MethodsReturningAnAwaitableTypeMustHaveTheAsyncSuffixAnalyzerTests
    • UseOperatingSystemInsteadOfRuntimeInformationAnalyzerTests
    • ValidateUnsafeAccessorAttributeUsageAnalyzerTests
    • UseTaskUnwrapAnalyzerTests
    • UseSystemThreadingLockInsteadOfObjectAnalyzerTests
    • UseContainsKeyInsteadOfTryGetValueAnalyzerTests
    • UseEqualsMethodInsteadOfOperatorAnalyzerTests
  • Result: all targeted tests passed (89/89).

Documentation

  • Ran dotnet run --project src/DocumentationGenerator and included generated updates.
  • Regenerated docs now reflect code-fix availability for updated rules in:
    • README.md
    • docs/README.md
    • related docs/Rules/MA*.md files.

Notes for reviewers

  • The MA0146 fixer targets adding Name = "..." on [UnsafeAccessor] local-function attributes and now explicitly handles nested local functions in method bodies.
  • MA0158 fixer intentionally updates object lock symbol declarations/usages to System.Threading.Lock and normalizes new object() initializers to new() for the migrated lock type.

meziantou and others added 3 commits March 30, 2026 20:17
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@meziantou meziantou marked this pull request as ready for review March 31, 2026 00:45
@meziantou meziantou merged commit 313c781 into main Mar 31, 2026
13 checks passed
@meziantou meziantou deleted the codefixers-selected-rules branch March 31, 2026 00:45
This was referenced Mar 31, 2026
IhateTrains added a commit to ParadoxGameConverters/ImperatorToCK3 that referenced this pull request Apr 3, 2026
Updated
[Meziantou.Analyzer](https://github.com/meziantou/Meziantou.Analyzer)
from 3.0.29 to 3.0.44.

<details>
<summary>Release notes</summary>

_Sourced from [Meziantou.Analyzer's
releases](https://github.com/meziantou/Meziantou.Analyzer/releases)._

## 3.0.44

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.44>

## What's Changed
* MA0011: suppress diagnostic when all AppendFormat template arguments
are culture-insensitive by @​Copilot in
meziantou/Meziantou.Analyzer#1085


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.43...3.0.44

## 3.0.43

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.43>

## What's Changed
* Fix expression parenthesis in code fixers by @​meziantou in
meziantou/Meziantou.Analyzer#1083


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.42...3.0.43

## 3.0.42

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.42>

## What's Changed
* Cache IsAwaitable result for the no-SyntaxNode overload by @​meziantou
in meziantou/Meziantou.Analyzer#1082


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.41...3.0.42

## 3.0.41

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.41>

## What's Changed
* Improve MA0042 async overload matching coverage by @​meziantou in
meziantou/Meziantou.Analyzer#1065


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.40...3.0.41

## 3.0.40

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.40>

## What's Changed
* Add MA0191: Detect null! and default! usage by @​Copilot in
meziantou/Meziantou.Analyzer#1081


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.39...3.0.40

## 3.0.39

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.39>

## What's Changed
* Add code fixes for MA0094-MA0097 by @​meziantou in
meziantou/Meziantou.Analyzer#1078


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.38...3.0.39

## 3.0.38

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.38>

## What's Changed
* Fix typos and grammar across all 188 rule documentation files by
@​Copilot in meziantou/Meziantou.Analyzer#1076
* Add code fixers for MA0118, MA0161, and MA0186 by @​meziantou in
meziantou/Meziantou.Analyzer#1079
* Validate fix conditions in RegisterCodeFixesAsync before registering
code fixes by @​Copilot in
meziantou/Meziantou.Analyzer#1077


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.37...3.0.38

## 3.0.37

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.37>

## What's Changed
* docs: require updating rule docs when rules change by @​meziantou in
meziantou/Meziantou.Analyzer#1075
* Add code fixers for MA0138/44/46/52/56/57/58/60/69/73 by @​meziantou
in meziantou/Meziantou.Analyzer#1074


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.36...3.0.37

## 3.0.36

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.36>

## What's Changed
* Add missing code fixers for 10 analyzer rules by @​meziantou in
meziantou/Meziantou.Analyzer#1073


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.35...3.0.36

## 3.0.35

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.35>

## What's Changed
* Add missing code fixers for MA0088-MA0137 by @​meziantou in
meziantou/Meziantou.Analyzer#1072


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.34...3.0.35

## 3.0.34

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.34>

## What's Changed
* Add code fixer for MA0174 (Record should use explicit 'class' keyword)
by @​Copilot in
meziantou/Meziantou.Analyzer#1070


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.33...3.0.34

## 3.0.33

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.33>

## What's Changed
* Add code fixer for MA0173 (Use LazyInitializer.EnsureInitialized) by
@​Copilot in meziantou/Meziantou.Analyzer#1071


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.32...3.0.33

## 3.0.32

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.32>

## What's Changed
* Add code fixer for MA0175 (Remove explicit `class` keyword from record
declarations) by @​Copilot in
meziantou/Meziantou.Analyzer#1069


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.31...3.0.32

## 3.0.31

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.31>

## What's Changed
* Add code fixer for MA0137 and MA0138 (async suffix naming) by
@​Copilot in meziantou/Meziantou.Analyzer#1068


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.30...3.0.31

## 3.0.30

NuGet package:
<https://www.nuget.org/packages/Meziantou.Analyzer/3.0.30>

## What's Changed
* MA0137: Add `exclude_test_methods` configuration option by @​Copilot
in meziantou/Meziantou.Analyzer#1067


**Full Changelog**:
meziantou/Meziantou.Analyzer@3.0.29...3.0.30

Commits viewable in [compare
view](meziantou/Meziantou.Analyzer@3.0.29...3.0.44).
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This was referenced Apr 3, 2026
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