C# Builder.AddSemanticDiagnostics方法代码示例

        public static async Task<CompilerAnalysisResult> AnalyzeAsync(this CompilationWithAnalyzers analyzerDriver, Project project, CancellationToken cancellationToken)
        {
            var version = await DiagnosticIncrementalAnalyzer.GetDiagnosticVersionAsync(project, cancellationToken).ConfigureAwait(false);

            // PERF: Run all analyzers at once using the new GetAnalysisResultAsync API.
            var analysisResult = await analyzerDriver.GetAnalysisResultAsync(cancellationToken).ConfigureAwait(false);

            var analyzers = analyzerDriver.Analyzers;
            var compilation = analyzerDriver.Compilation;

            var builder = ImmutableDictionary.CreateBuilder<DiagnosticAnalyzer, AnalysisResult>();

            foreach (var analyzer in analyzers)
            {
                var result = new Builder(project, version);

                foreach (var tree in compilation.SyntaxTrees)
                {
                    ImmutableDictionary<DiagnosticAnalyzer, ImmutableArray<Diagnostic>> syntaxDiagnosticsByAnalyzer;
                    ImmutableArray<Diagnostic> syntaxDiagnostics;
                    if (analysisResult.SyntaxDiagnostics.TryGetValue(tree, out syntaxDiagnosticsByAnalyzer) &&
                        syntaxDiagnosticsByAnalyzer.TryGetValue(analyzer, out syntaxDiagnostics))
                    {
                        Contract.Requires(syntaxDiagnostics.Length == CompilationWithAnalyzers.GetEffectiveDiagnostics(syntaxDiagnostics, analyzerDriver.Compilation).Count());
                        result.AddSyntaxDiagnostics(tree, syntaxDiagnostics);
                    }

                    ImmutableDictionary<DiagnosticAnalyzer, ImmutableArray<Diagnostic>> semanticDiagnosticsByAnalyzer;
                    ImmutableArray<Diagnostic> semanticDiagnostics;
                    if (analysisResult.SemanticDiagnostics.TryGetValue(tree, out semanticDiagnosticsByAnalyzer) &&
                        semanticDiagnosticsByAnalyzer.TryGetValue(analyzer, out semanticDiagnostics))
                    {
                        Contract.Requires(semanticDiagnostics.Length == CompilationWithAnalyzers.GetEffectiveDiagnostics(semanticDiagnostics, analyzerDriver.Compilation).Count());
                        result.AddSemanticDiagnostics(tree, semanticDiagnostics);
                    }
                }

                ImmutableArray<Diagnostic> compilationDiagnostics;
                if (analysisResult.CompilationDiagnostics.TryGetValue(analyzer, out compilationDiagnostics))
                {
                    Contract.Requires(compilationDiagnostics.Length == CompilationWithAnalyzers.GetEffectiveDiagnostics(compilationDiagnostics, analyzerDriver.Compilation).Count());
                    result.AddCompilationDiagnostics(compilationDiagnostics);
                }

                builder.Add(analyzer, result.ToResult());
            }

            return new CompilerAnalysisResult(builder.ToImmutable(), analysisResult.AnalyzerTelemetryInfo);
        }

        public static async Task<ImmutableDictionary<DiagnosticAnalyzer, AnalysisResult>> AnalyzeAsync(this CompilationWithAnalyzers analyzerDriver, Project project, CancellationToken cancellationToken)
        {
            var version = await DiagnosticIncrementalAnalyzer.GetDiagnosticVersionAsync(project, cancellationToken).ConfigureAwait(false);

            // Run all analyzers at once.
            // REVIEW: why there are 2 different cancellation token? one that I can give to constructor and one I can give in to each method?
            // REVIEW: we drop all those allocations for the diagnostics returned. can we avoid this?
            await analyzerDriver.GetAnalyzerDiagnosticsAsync(cancellationToken).ConfigureAwait(false);

            // this is wierd, but now we iterate through each analyzer for each tree to get cached result.
            // REVIEW: no better way to do this?
            var noSpanFilter = default(TextSpan?);
            var analyzers = analyzerDriver.Analyzers;
            var compilation = analyzerDriver.Compilation;

            var builder = ImmutableDictionary.CreateBuilder<DiagnosticAnalyzer, AnalysisResult>();
            foreach (var analyzer in analyzers)
            {
                var result = new Builder(project, version);

                // REVIEW: more unnecessary allocations just to get diagnostics per analyzer
                var oneAnalyzers = ImmutableArray.Create(analyzer);

                foreach (var tree in compilation.SyntaxTrees)
                {
                    var model = compilation.GetSemanticModel(tree);

                    var syntax = await analyzerDriver.GetAnalyzerSyntaxDiagnosticsAsync(tree, oneAnalyzers, cancellationToken).ConfigureAwait(false);
                    Contract.Requires(syntax.Count() == CompilationWithAnalyzers.GetEffectiveDiagnostics(syntax, analyzerDriver.Compilation).Count());
                    result.AddSyntaxDiagnostics(tree, syntax);

                    var semantic = await analyzerDriver.GetAnalyzerSemanticDiagnosticsAsync(model, noSpanFilter, oneAnalyzers, cancellationToken).ConfigureAwait(false);
                    Contract.Requires(semantic.Count() == CompilationWithAnalyzers.GetEffectiveDiagnostics(semantic, analyzerDriver.Compilation).Count());
                    result.AddSemanticDiagnostics(tree, semantic);
                }

                var rest = await analyzerDriver.GetAnalyzerCompilationDiagnosticsAsync(oneAnalyzers, cancellationToken).ConfigureAwait(false);
                Contract.Requires(rest.Count() == CompilationWithAnalyzers.GetEffectiveDiagnostics(rest, analyzerDriver.Compilation).Count());
                result.AddCompilationDiagnostics(rest);

                builder.Add(analyzer, result.ToResult());
            }

            return builder.ToImmutable();
        }