Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Avoid direct descriptor comparison, so the fix can be shown #7296

Merged
merged 2 commits into from Apr 29, 2024
Merged

Avoid direct descriptor comparison, so the fix can be shown #7296

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
aba7cf1
Avoid direct descriptor comparison, so the fix can be shown
DoctorKrolic Apr 17, 2024
37a5a32
Feedback and some refactorings
DoctorKrolic Apr 29, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
18 changes: 12 additions & 6 deletions src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/CompareSymbolsCorrectlyAnalyzer.cs
View file
Open in desktop
@@ -1,5 +1,6 @@
// Copyright (c) Microsoft. All Rights Reserved. Licensed under the MIT license. See License.txt in the project root for license information.

using System.Collections.Generic;
using System.Collections.Immutable;
using System.Diagnostics;
using System.Linq;
Expand All @@ -26,7 +27,9 @@ public class CompareSymbolsCorrectlyAnalyzer : DiagnosticAnalyzer
private static readonly string s_symbolTypeFullName = typeof(ISymbol).FullName;
private const string s_symbolEqualsName = nameof(ISymbol.Equals);
private const string s_HashCodeCombineName = "Combine";

public const string SymbolEqualityComparerName = "Microsoft.CodeAnalysis.SymbolEqualityComparer";
public const string RulePropertyName = "Rule";

public static readonly DiagnosticDescriptor EqualityRule = new(
DiagnosticIds.CompareSymbolsCorrectlyRuleId,
Expand Down Expand Up @@ -142,7 +145,7 @@ private static void HandleBinaryOperator(in OperationAnalysisContext context, IN
return;
}

context.ReportDiagnostic(binary.Syntax.GetLocation().CreateDiagnostic(EqualityRule));
context.ReportDiagnostic(binary.Syntax.GetLocation().CreateDiagnostic(EqualityRule, MakeProperties(nameof(EqualityRule))));
}

private static void HandleInvocationOperation(
Expand All @@ -163,7 +166,7 @@ private static void HandleBinaryOperator(in OperationAnalysisContext context, IN
// without the correct arguments
if (IsSymbolType(invocationOperation.Instance, symbolType))
{
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(GetHashCodeRule));
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(GetHashCodeRule, MakeProperties(nameof(GetHashCode))));
}

break;
Expand All @@ -174,7 +177,7 @@ private static void HandleBinaryOperator(in OperationAnalysisContext context, IN
var parameters = invocationOperation.Arguments;
if (parameters.All(p => IsSymbolType(p.Value, symbolType)))
{
context.ReportDiagnostic(invocationOperation.Syntax.GetLocation().CreateDiagnostic(EqualityRule));
context.ReportDiagnostic(invocationOperation.Syntax.GetLocation().CreateDiagnostic(EqualityRule, MakeProperties(nameof(EqualityRule))));
}
}

Expand All @@ -187,7 +190,7 @@ private static void HandleBinaryOperator(in OperationAnalysisContext context, IN
systemHashCodeType.Equals(method.ContainingType, SymbolEqualityComparer.Default) &&
invocationOperation.Arguments.Any(arg => IsSymbolType(arg.Value, symbolType)))
{
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(GetHashCodeRule));
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(GetHashCodeRule, MakeProperties(nameof(GetHashCodeRule))));
}

break;
Expand All @@ -199,7 +202,7 @@ private static void HandleBinaryOperator(in OperationAnalysisContext context, IN
IsBehavingOnSymbolType(method, symbolType) &&
!invocationOperation.Arguments.Any(arg => IsSymbolType(arg.Value, iEqualityComparer)))
{
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(CollectionRule));
context.ReportDiagnostic(invocationOperation.CreateDiagnostic(CollectionRule, MakeProperties(nameof(CollectionRule))));
}

break;
Expand Down Expand Up @@ -249,7 +252,7 @@ static bool IsBehavingOnSymbolType(IMethodSymbol? method, INamedTypeSymbol symbo
IsSymbolType(createdType.TypeArguments[0], symbolType) &&
!objectCreation.Arguments.Any(arg => IsSymbolType(arg.Value, iEqualityComparerType)))
{
context.ReportDiagnostic(objectCreation.CreateDiagnostic(CollectionRule));
context.ReportDiagnostic(objectCreation.CreateDiagnostic(CollectionRule, MakeProperties(nameof(CollectionRule))));
}
}

Expand Down Expand Up @@ -354,6 +357,9 @@ void AddOrUpdate(string methodName, INamedTypeSymbol typeSymbol)
}
}

private static ImmutableDictionary<string, string?> MakeProperties(string rule)
=> ImmutableDictionary.CreateRange([new KeyValuePair<string, string?>(RulePropertyName, rule)]);
DoctorKrolic marked this conversation as resolved.
Show resolved Hide resolved

public static bool UseSymbolEqualityComparer(Compilation compilation)
=> compilation.GetOrCreateTypeByMetadataName(SymbolEqualityComparerName) is object;
}
Expand Down
36 changes: 20 additions & 16 deletions src/Microsoft.CodeAnalysis.Analyzers/Core/MetaAnalyzers/Fixers/CompareSymbolsCorrectlyFix.cs
View file
Open in desktop
Expand Up @@ -32,23 +32,27 @@ public sealed override Task RegisterCodeFixesAsync(CodeFixContext context)
{
foreach (var diagnostic in context.Diagnostics)
{
if (diagnostic.Descriptor == CompareSymbolsCorrectlyAnalyzer.EqualityRule)
if (diagnostic.Properties.TryGetValue(CompareSymbolsCorrectlyAnalyzer.RulePropertyName, out var rule))
{
context.RegisterCodeFix(
CodeAction.Create(
CodeAnalysisDiagnosticsResources.CompareSymbolsCorrectlyCodeFix,
cancellationToken => ConvertToEqualsAsync(context.Document, diagnostic.Location.SourceSpan, cancellationToken),
equivalenceKey: nameof(CompareSymbolsCorrectlyFix)),
diagnostic);
}
else if (diagnostic.Descriptor == CompareSymbolsCorrectlyAnalyzer.CollectionRule)
{
context.RegisterCodeFix(
CodeAction.Create(
CodeAnalysisDiagnosticsResources.CompareSymbolsCorrectlyCodeFix,
cancellationToken => CallOverloadWithEqualityComparerAsync(context.Document, diagnostic.Location.SourceSpan, cancellationToken),
equivalenceKey: nameof(CompareSymbolsCorrectlyFix)),
diagnostic);
switch (rule)
{
case nameof(CompareSymbolsCorrectlyAnalyzer.EqualityRule):
context.RegisterCodeFix(
CodeAction.Create(
CodeAnalysisDiagnosticsResources.CompareSymbolsCorrectlyCodeFix,
cancellationToken => ConvertToEqualsAsync(context.Document, diagnostic.Location.SourceSpan, cancellationToken),
equivalenceKey: nameof(CompareSymbolsCorrectlyFix)),
diagnostic);
break;
case nameof(CompareSymbolsCorrectlyAnalyzer.CollectionRule):
context.RegisterCodeFix(
CodeAction.Create(
CodeAnalysisDiagnosticsResources.CompareSymbolsCorrectlyCodeFix,
cancellationToken => CallOverloadWithEqualityComparerAsync(context.Document, diagnostic.Location.SourceSpan, cancellationToken),
equivalenceKey: nameof(CompareSymbolsCorrectlyFix)),
diagnostic);
break;
}
}
}

Expand Down