55 lines
2.6 KiB
C#
55 lines
2.6 KiB
C#
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using System;
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using System.Collections.Immutable;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using Microsoft.CodeAnalysis.Diagnostics;
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namespace RegexAnalyzer
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{
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[DiagnosticAnalyzer(LanguageNames.CSharp)]
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public class ConfigureAwaitAnalyzer : DiagnosticAnalyzer
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{
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public const string DiagnosticId = "ConfigureAwait";
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internal const string Title = "ConfigureAwait was not specified";
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internal const string MessageFormat = "ConfigureAwait error {0}";
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internal const string Description = "ConfigureAwait(false) should be used.";
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internal const string Category = "Usage";
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internal static DiagnosticDescriptor Rule =
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new DiagnosticDescriptor(DiagnosticId, Title, MessageFormat,
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Category, DiagnosticSeverity.Error, isEnabledByDefault: true, description: Description);
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public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics => ImmutableArray.Create(Rule);
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public override void Initialize(AnalysisContext context)
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{
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context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.InvocationExpression);
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}
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private void AnalyzeNode(SyntaxNodeAnalysisContext context)
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{
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/*var invocationExpr = (InvocationExpressionSyntax)context.Node;
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var memberAccessExpr = invocationExpr.Expression as MemberAccessExpressionSyntax;
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if (memberAccessExpr?.Name.ToString() != "Match") return;
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var memberSymbol = context.SemanticModel.GetSymbolInfo(memberAccessExpr).Symbol as IMethodSymbol;
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if (!memberSymbol?.ToString().StartsWith("System.Text.RegularExpressions.Regex.Match") ?? true) return;
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var argumentList = invocationExpr.ArgumentList as ArgumentListSyntax;
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if ((argumentList?.Arguments.Count ?? 0) < 2) return;
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var regexLiteral = argumentList.Arguments[1].Expression as LiteralExpressionSyntax;
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if (regexLiteral == null) return;
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var regexOpt = context.SemanticModel.GetConstantValue(regexLiteral);
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if (!regexOpt.HasValue) return;
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var regex = regexOpt.Value as string;
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if (regex == null) return;
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try
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{
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System.Text.RegularExpressions.Regex.Match("", regex);
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}
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catch (ArgumentException e)
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{
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var diagnostic = Diagnostic.Create(Rule, regexLiteral.GetLocation(), e.Message);
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context.ReportDiagnostic(diagnostic);
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}*/
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}
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}
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}
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