|
| 1 | +using System.Collections.Immutable; |
| 2 | +using System.Linq; |
| 3 | +using Microsoft.CodeAnalysis; |
| 4 | +using Microsoft.CodeAnalysis.CSharp; |
| 5 | +using Microsoft.CodeAnalysis.CSharp.Syntax; |
| 6 | +using Microsoft.CodeAnalysis.Diagnostics; |
| 7 | + |
| 8 | +namespace RubberduckCodeAnalysis |
| 9 | +{ |
| 10 | + [DiagnosticAnalyzer(LanguageNames.CSharp)] |
| 11 | + public class ChainedWrapperAnalyzer : DiagnosticAnalyzer |
| 12 | + { |
| 13 | + private const string ChainedWrapperId = "ChainedWrapper"; |
| 14 | + private static readonly DiagnosticDescriptor ChainedWrapperRule = new DiagnosticDescriptor( |
| 15 | + ChainedWrapperId, |
| 16 | + new LocalizableResourceString(nameof(Resources.ChainedWrapperTitle), Resources.ResourceManager, typeof(Resources)), |
| 17 | + new LocalizableResourceString(nameof(Resources.ChainedWrapperMessageFormat), Resources.ResourceManager, typeof(Resources)), |
| 18 | + new LocalizableResourceString(nameof(Resources.AnalyzerCategory), Resources.ResourceManager, typeof(Resources)).ToString(), |
| 19 | + DiagnosticSeverity.Error, |
| 20 | + true, |
| 21 | + new LocalizableResourceString(nameof(Resources.ChainedWrapperDescription), Resources.ResourceManager, typeof(Resources)) |
| 22 | + ); |
| 23 | + |
| 24 | + public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => |
| 25 | + ImmutableArray.Create(ChainedWrapperRule); |
| 26 | + |
| 27 | + public override void Initialize(AnalysisContext context) |
| 28 | + { |
| 29 | + context.RegisterSyntaxNodeAction(AnalyzeSymbol, SyntaxKind.SimpleMemberAccessExpression); |
| 30 | + } |
| 31 | + |
| 32 | + private static void AnalyzeSymbol(SyntaxNodeAnalysisContext context) |
| 33 | + { |
| 34 | + var node = (MemberAccessExpressionSyntax)context.Node; |
| 35 | + |
| 36 | + if (!(node.Expression is InvocationExpressionSyntax || node.Expression is MemberAccessExpressionSyntax)) |
| 37 | + { |
| 38 | + return; |
| 39 | + } |
| 40 | + |
| 41 | + var expInterfaces = context.SemanticModel.GetTypeInfo(node.Expression).Type?.AllInterfaces; |
| 42 | + var nameInterfaces = context.SemanticModel.GetTypeInfo(node.Name).Type?.AllInterfaces; |
| 43 | + |
| 44 | + if (expInterfaces?.Any(a => a.ToDisplayString() == "Rubberduck.VBEditor.SafeComWrappers.Abstract.ISafeComWrapper") == true || |
| 45 | + nameInterfaces?.Any(a => a.ToDisplayString() == "Rubberduck.VBEditor.SafeComWrappers.Abstract.ISafeComWrapper") == true) |
| 46 | + { |
| 47 | + var diagnostic = Diagnostic.Create(ChainedWrapperRule, node.GetLocation()); |
| 48 | + context.ReportDiagnostic(diagnostic); |
| 49 | + } |
| 50 | + } |
| 51 | + } |
| 52 | +} |
0 commit comments