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Fix HarmonyMethodRefParametersAnalyzer incorrectly marking member accesses as warning #6

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Fix HarmonyMethodRefParametersAnalyzer incorrectly marking member accesses as warning #6

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a22ff84
only Assignment expressions matter for RefParameters Analyzer
xiaoxiao921 Jan 28, 2022
2a7129e
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xiaoxiao921 Jan 28, 2022
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2 changes: 1 addition & 1 deletion BepInEx.Analyzers/BepInEx.Analyzers.Package/BepInEx.Analyzers.Package.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@

<PropertyGroup>
<PackageId>BepInEx.Analyzers</PackageId>
<PackageVersion>1.0.8</PackageVersion>
<PackageVersion>1.0.9</PackageVersion>
<Authors>BepInEx</Authors>
<PackageProjectUrl>https://github.com/BepInEx/BepInEx.Analyzers</PackageProjectUrl>
<PackageIconUrl>https://avatars2.githubusercontent.com/u/39589027</PackageIconUrl>
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18 changes: 1 addition & 17 deletions BepInEx.Analyzers/BepInEx.Analyzers/HarmonyMethodRefParametersAnalyzer.cs
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Expand Up @@ -40,17 +40,9 @@ private void AnalyzeMethodDeclaration(SyntaxNodeAnalysisContext context)
if (method.ParameterList?.Parameters.Count <= 0)
return;

var memberAccesses = context.Node.DescendantNodes().OfType<MemberAccessExpressionSyntax>();
var varNames = memberAccesses.Select(e => e.Expression.ToString()).ToList();
CheckExpressionSyntaxes(context, method, varNames, memberAccesses.Cast<ExpressionSyntax>().ToList());

var assignments = context.Node.DescendantNodes().OfType<AssignmentExpressionSyntax>();
varNames = assignments.Select(e => e.Left.ToString()).ToList();
var varNames = assignments.Select(e => e.Left.ToString()).ToList();
CheckExpressionSyntaxes(context, method, varNames, assignments.Cast<ExpressionSyntax>().ToList());

var accessesByIndex = context.Node.DescendantNodes().OfType<ElementAccessExpressionSyntax>();
varNames = accessesByIndex.Select(e => e.Expression.ToString()).ToList();
CheckExpressionSyntaxes(context, method, varNames, accessesByIndex.Cast<ExpressionSyntax>().ToList());
}

private static void CheckExpressionSyntaxes(SyntaxNodeAnalysisContext context, MethodDeclarationSyntax method,
Expand All @@ -60,15 +52,7 @@ private static void CheckExpressionSyntaxes(SyntaxNodeAnalysisContext context, M
{
foreach (var parameter in method.ParameterList.Parameters)
{
// If parameter is a reference type and is not a literal assignment no warning needed
var parameterSymbol = context.SemanticModel.GetDeclaredSymbol(parameter, context.CancellationToken);
if (parameterSymbol.Type.IsReferenceType)
{
if (!(expressionSyntaxes[i] is AssignmentExpressionSyntax assignment))
{
continue;
}
}

var parameterName = parameterSymbol.Name;
if (parameterSymbol.RefKind == RefKind.None && parameterName == varNames[i])
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