private void CompileIntoAssembly(string sourceCode, string assemblyName)
{
var compilation = CompilationHelper.CreateCompilation(sourceCode, assemblyName);
var assemblyFileName = Path.GetTempFileName();
var result = compilation.Emit(assemblyFileName);
var compilationReport = String.Join(Environment.NewLine, result.Diagnostics.Where(l => l.Severity != DiagnosticSeverity.Hidden).Select(l => $"[{l.Severity}] {l}"));
if (!String.IsNullOrEmpty(compilationReport))
{
_outputHelper.WriteLine(compilationReport);
}
var errorReport = String.Join(Environment.NewLine, result.Diagnostics.Where(l => l.Severity == DiagnosticSeverity.Error).Select(l => $"[{l.Severity}] {l}"));
errorReport.ShouldBeNullOrEmpty();
Assembly.LoadFrom(assemblyFileName);
}
private SourceText GenerateSource(AdditionalText additionalFile, string scalarFieldTypeMappingProviderTypeName)
{
var sourceGenerator = new GraphQlClientSourceGenerator();
sourceGenerator.Initialize(new GeneratorInitializationContext());
var configurationOptions =
new Dictionary <string, string>
{
{ "build_property.GraphQlClientGenerator_ClassPrefix", "SourceGenerated" },
{ "build_property.GraphQlClientGenerator_ClassSuffix", "V2" },
{ "build_property.GraphQlClientGenerator_IncludeDeprecatedFields", "true" },
{ "build_property.GraphQlClientGenerator_CommentGeneration", "CodeSummary" },
{ "build_property.GraphQlClientGenerator_FloatTypeMapping", "Double" },
{ "build_property.GraphQlClientGenerator_BooleanTypeMapping", "Boolean" },
{ "build_property.GraphQlClientGenerator_IdTypeMapping", "String" },
{ "build_property.GraphQlClientGenerator_JsonPropertyGeneration", "Always" },
{ "build_property.GraphQlClientGenerator_CustomClassMapping", "Query:Tibber|RootMutation:TibberMutation Consumption:ConsumptionEntry;Production:ProductionEntry" },
{ "build_property.GraphQlClientGenerator_Headers", "Authorization:Basic XXX|X-REQUEST-ID:123456789" }
};
if (scalarFieldTypeMappingProviderTypeName != null)
{
configurationOptions.Add("build_property.GraphQlClientGenerator_ScalarFieldTypeMappingProvider", scalarFieldTypeMappingProviderTypeName);
}
var compilerAnalyzerConfigOptionsProvider = new CompilerAnalyzerConfigOptionsProvider(new CompilerAnalyzerConfigOptions(configurationOptions));
var compilation = CompilationHelper.CreateCompilation(null, "SourceGeneratorTestAssembly");
var generatorExecutionContextType = typeof(GeneratorExecutionContext);
var constructorInfo = generatorExecutionContextType.GetConstructors(BindingFlags.NonPublic | BindingFlags.Instance)[0];
var additionalFiles = new List <AdditionalText> {
_fileGraphQlSchema
};
if (additionalFile != null)
{
additionalFiles.Add(additionalFile);
}
var additionalSourcesCollectionType = Type.GetType("Microsoft.CodeAnalysis.AdditionalSourcesCollection, Microsoft.CodeAnalysis");
var additionalSourcesCollection = additionalSourcesCollectionType.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { typeof(string) }, null).Invoke(new object[] { ".cs" });
var executionContext =
(GeneratorExecutionContext)constructorInfo.Invoke(
new[]
{
compilation,
new CSharpParseOptions(LanguageVersion.CSharp9),
additionalFiles.ToImmutableArray(),
compilerAnalyzerConfigOptionsProvider,
null,
additionalSourcesCollection,
CancellationToken.None
});
var additionalSourceFiles = generatorExecutionContextType.GetField("_additionalSources", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(executionContext);
sourceGenerator.Execute(executionContext);
var sourcesAdded = ((IEnumerable)additionalSourceFiles.GetType().GetField("_sourcesAdded", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(additionalSourceFiles)).GetEnumerator();
sourcesAdded.MoveNext().ShouldBeTrue();
var sourceText = (SourceText)sourcesAdded.Current.GetType().GetProperty("Text").GetValue(sourcesAdded.Current);
sourcesAdded.MoveNext().ShouldBeFalse();
return(sourceText);
}