66 lines
3.1 KiB
C#
66 lines
3.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Diagnostics;
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using System.Linq;
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using System.Threading;
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using MapTo.Tests.Extensions;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp;
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namespace MapTo.Tests.Infrastructure
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{
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internal static class CSharpGenerator
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{
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internal static (Compilation compilation, ImmutableArray<Diagnostic> diagnostics) GetOutputCompilation(
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string source,
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bool assertCompilation = false,
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IDictionary<string, string>? analyzerConfigOptions = null,
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NullableContextOptions nullableContextOptions = NullableContextOptions.Disable,
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LanguageVersion languageVersion = LanguageVersion.CSharp7_3) =>
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GetOutputCompilation(
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new[] { source },
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assertCompilation,
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analyzerConfigOptions,
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nullableContextOptions,
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languageVersion);
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internal static (Compilation compilation, ImmutableArray<Diagnostic> diagnostics) GetOutputCompilation(
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IEnumerable<string> sources,
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bool assertCompilation = false,
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IDictionary<string, string>? analyzerConfigOptions = null,
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NullableContextOptions nullableContextOptions = NullableContextOptions.Disable,
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LanguageVersion languageVersion = LanguageVersion.CSharp7_3)
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{
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var references = AppDomain.CurrentDomain.GetAssemblies()
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.Where(a => !a.IsDynamic && !string.IsNullOrWhiteSpace(a.Location))
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.Select(a => MetadataReference.CreateFromFile(a.Location))
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.ToList();
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var compilation = CSharpCompilation.Create(
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$"{typeof(CSharpGenerator).Assembly.GetName().Name}.Dynamic",
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sources.Select((source, index) => CSharpSyntaxTree.ParseText(source, path: $"Test{index:00}.g.cs", options: new CSharpParseOptions(languageVersion))),
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references,
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new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary, nullableContextOptions: nullableContextOptions));
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if (assertCompilation)
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{
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// NB: fail tests when the injected program isn't valid _before_ running generators
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compilation.GetDiagnostics().ShouldBeSuccessful();
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}
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var driver = CSharpGeneratorDriver.Create(
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new List<ISourceGenerator>() { new MapToGenerator()},
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optionsProvider: new TestAnalyzerConfigOptionsProvider(analyzerConfigOptions),
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parseOptions: new CSharpParseOptions(languageVersion)
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);
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driver.RunGeneratorsAndUpdateCompilation(compilation, out var outputCompilation, out var generateDiagnostics);
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generateDiagnostics.ShouldBeSuccessful(ignoreDiagnosticsIds: new[] { "MT" });
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outputCompilation.GetDiagnostics().ShouldBeSuccessful(outputCompilation);
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return (outputCompilation, generateDiagnostics);
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}
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}
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} |