public void Finds_variable_origins_to_be_parameter_declaration()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/TestFunctions.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var methodSyntax = SyntaxOperations
.FindMethodsOfClass(syntaxTree, nameof(TestFunctions), nameof(TestFunctions.ReturnSameValue))
.Value
.Single();
var methodAnalysis = MethodBlockAnalysis.FromSemanticModel(methodSyntax, semanticModel);
var returnSyntax = methodAnalysis.BodyBlock.DescendantNodes().OfType <ReturnStatementSyntax>().Single();
var identSyntax = SyntaxOperations.GetVariable(returnSyntax);
var origin = SemanticOperations.GetIdentifierDeclarationSyntax(identSyntax, methodAnalysis).Value.A;
var paramDeclarSyntax = origin.D;
var paramName = paramDeclarSyntax.Identifier.ToString();
Assert.AreEqual("x", paramName);
}
public void Partial_class_symbol_has_many_syntax_references_depending_on_source_syntax_tree_it_was_obtained()
{
var codeAsText1 = File.ReadAllText(@"SyntaxAnalyserExamples/PartialClass.part1.cs");
var syntaxTree1 = SyntaxOperations.Parse(codeAsText1);
var classDeclarationSyntax1 = SyntaxOperations.FindClass <PartialClass>(syntaxTree1).A;
var codeAsText2 = File.ReadAllText(@"SyntaxAnalyserExamples/PartialClass.part2.cs");
var syntaxTree2 = SyntaxOperations.Parse(codeAsText2);
var classDeclarationSyntax2 = SyntaxOperations.FindClass <PartialClass>(syntaxTree2).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree1, new[] { syntaxTree1, syntaxTree2 });
var classSymbol1 = semanticModel.GetDeclaredSymbol(classDeclarationSyntax1);
var classSymbol2 = semanticModel.GetDeclaredSymbol(classDeclarationSyntax1);
Assert.AreEqual(classSymbol1, classSymbol2);
var declaringSyntaxRefs1 = classSymbol1.DeclaringSyntaxReferences;
var declaringSyntaxRefs2 = classSymbol2.DeclaringSyntaxReferences;
CollectionAssert.AreEquivalent(declaringSyntaxRefs1, declaringSyntaxRefs2);
Assert.AreEqual(2, declaringSyntaxRefs1.Length);
}
public void List_chain_of_constructors_3()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/ClassFamily.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classExtUserDeclarationSyntax = SyntaxOperations.FindClass <ExtendedUser>(syntaxTree).A;
var classNormalUserDeclarationSyntax = SyntaxOperations.FindClass <NormalUser>(syntaxTree).A;
var classBaseUserDeclarationSyntax = SyntaxOperations.FindClass <BaseUser>(syntaxTree).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var threeArgsCtor = SyntaxOperations
.FindConstructorsOf(classExtUserDeclarationSyntax, semanticModel, argsCount: 3)
.Single();
var(firstLink, isCompleted) = ChainOfConstructor.StartingFrom(threeArgsCtor, classExtUserDeclarationSyntax, semanticModel);
var secondLink = firstLink.NextLink.Value;
var thirdLink = secondLink.NextLink.Value;
var lastlink = thirdLink.NextLink.Value;
Assert.IsTrue(isCompleted);
_Assert_IsIntermadiateLink(firstLink, classExtUserDeclarationSyntax, threeArgsCtor);
_Assert_IsIntermadiateLink(secondLink, classNormalUserDeclarationSyntax, SyntaxOperations.FindConstructorsOf(classNormalUserDeclarationSyntax, semanticModel, 3).Single());
_Assert_IsIntermadiateLink(thirdLink, classNormalUserDeclarationSyntax, SyntaxOperations.FindConstructorsOf(classNormalUserDeclarationSyntax, semanticModel, 2).Single());
_Assert_IsLastLink(lastlink, classBaseUserDeclarationSyntax, SyntaxOperations.FindConstructorsOf(classBaseUserDeclarationSyntax, semanticModel, 0).Single());
}
public void List_chain_of_constructors_2()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/ClassFamily.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classDeclarationSyntax = SyntaxOperations.FindClass <BaseUser>(syntaxTree).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var zeroArgsCtor = SyntaxOperations
.FindConstructorsOf(classDeclarationSyntax, semanticModel, argsCount: 0)
.Single();
var oneArgCtor = SyntaxOperations
.FindConstructorsOf(classDeclarationSyntax, semanticModel, argsCount: 1)
.Single();
var(firstLink, isCompleted) = ChainOfConstructor.StartingFrom(oneArgCtor, classDeclarationSyntax, semanticModel);
Assert.IsTrue(isCompleted);
_Assert_IsIntermadiateLink(firstLink, classDeclarationSyntax, oneArgCtor);
var secondLink = firstLink.NextLink.Value;
_Assert_IsLastLink(secondLink, classDeclarationSyntax, zeroArgsCtor);
}
public void Creates_computation_chain()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/TestFunctions.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var methodSyntax = SyntaxOperations
.FindMethodsOfClass(syntaxTree, nameof(TestFunctions), nameof(TestFunctions.ProcessInt32Parameter))
.Value
.Single();
var methodAnalysis = MethodBlockAnalysis.FromSemanticModel(methodSyntax, semanticModel);
var returnSyntax = methodAnalysis.BodyBlock.DescendantNodes().OfType <ReturnStatementSyntax>().Single();
var identSyntax = SyntaxOperations.GetVariable(returnSyntax);
var chainHead = ComputationGraph.FromReturnStatement(returnSyntax, methodAnalysis, methodAnalysis.MethodDeclarationSyntax.Span).Item1.A;
var sqrtDoubledIncrementedInt = _Assert_ReturnStatement(chainHead).A;
var localDecl_sqrtDoubledIncrementedInt = _Assert_Identifier(sqrtDoubledIncrementedInt, "sqrtDoubledIncrementedInt").A;
var castToInt = _Assert_LocalDeclaration(localDecl_sqrtDoubledIncrementedInt, "sqrtDoubledIncrementedInt").A;
var sqrtDoubledIncremented = _Assert_CastExpression(castToInt, typeof(int), methodAnalysis).A;
var localDecl_sqrtDoubledIncremented = _Assert_Identifier(sqrtDoubledIncremented, "sqrtDoubledIncremented").A;
var sqrt = _Assert_LocalDeclaration(localDecl_sqrtDoubledIncremented, "sqrtDoubledIncremented").A;
var(mathClassSqrt, args_doubledIncremented) = _Assert_Invocation(sqrt, nameof(Math.Sqrt));
var localDecl_doubledIncremented = _Assert_Identifier(args_doubledIncremented.Single().A, "doubledIncremented").A;
var parenthesizedExprAdd = _Assert_LocalDeclaration(localDecl_doubledIncremented, "doubledIncremented").A;
var binary_add = _Assert_ParenthesizedExpr(parenthesizedExprAdd).A;
var(doubled, oneLiteral) = _Assert_BinaryExpression(binary_add, operatorToken: SyntaxKind.PlusToken);
_Assert_Literal(oneLiteral.A, 1);
var localDecl_doubled = _Assert_Identifier(doubled.A, "doubled").A;
var parenthesizedExprMult = _Assert_LocalDeclaration(localDecl_doubled, "doubled").A;
var binary_mult = _Assert_ParenthesizedExpr(parenthesizedExprMult).A;
var(twoLiteral, x) = _Assert_BinaryExpression(binary_mult, operatorToken: SyntaxKind.AsteriskToken);
_Assert_Literal(twoLiteral.A, 2);
var methodParam = _Assert_Identifier(x.A, "x").A;
_Assert_MethodParam(methodParam, "x", typeof(int), methodAnalysis);
}
public void Recognises_if_class_contains_aformentioned_ctor_attribute()
{
var syntaxTree = SyntaxOperations.Parse(CodeAsText);
var syntax = SyntaxOperations.FindClass <A>(syntaxTree).A;
var semantics = SemanticOperations.GetSemanticModel(syntaxTree);
var classSymbol = (INamedTypeSymbol)semantics.GetDeclaredSymbol(syntax);
var isUnderInterest = ThisConstructorMustBeCalledAnalyzer.IsUnderInterest(classSymbol);
}
public void Creates_semantic_model_of_a_class()
{
var classToAnalyze = typeof(ClientDto);
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/ClientDto.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classDeclarationSyntax = SyntaxOperations.FindClass <ClientDto>(syntaxTree);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var typeSymbol = SemanticOperations.FindClassSingle <ClientDto>(syntaxTree, semanticModel).A;
Assert.AreEqual(classToAnalyze.Name, typeSymbol.Name);
}
public void Computes_value_of_string_literal()
{
var codeAsText = @"var x = ""konik"";";
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var fieldSyntax = syntaxTree.GetRoot().ChildNodes().OfType <FieldDeclarationSyntax>().Single();
var semantics = SemanticOperations.GetSemanticModel(syntaxTree);
var literalSyntax = fieldSyntax.DescendantNodes().OfType <LiteralExpressionSyntax>().Single();
var literalVal = (string)semantics.GetConstantValue(literalSyntax).Value;
Assert.AreEqual("konik", literalVal);
}
public void Semantic_model_can_be_obtained_from_partial_definition_of_a_class_1()
{
var codeAsText2 = File.ReadAllText(@"SyntaxAnalyserExamples/PartialClass.part2.cs");
var syntaxTree2 = SyntaxOperations.Parse(codeAsText2);
var classDeclarationSyntax2 = SyntaxOperations.FindClass <PartialClass>(syntaxTree2).A;
var semanticModel2 = SemanticOperations.GetSemanticModel(syntaxTree2);
var twoArgsCtor = SyntaxOperations
.FindConstructorsOf(classDeclarationSyntax2, semanticModel2, argsCount: 2)
.Single();
Assert.IsNotNull(twoArgsCtor);
}
public void Finds_implicit_constructor()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/MyEmptyClass.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classDeclarationSyntax = SyntaxOperations.FindClass <MyEmptyClass>(syntaxTree).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var typeSymbol = SemanticOperations.FindClassSingle <MyEmptyClass>(syntaxTree, semanticModel).A;
var anonymousConstructor = typeSymbol.Constructors.Single();
Assert.AreEqual(actual: anonymousConstructor.MethodKind, expected: MethodKind.Constructor);
Assert.IsTrue(anonymousConstructor.IsImplicitlyDeclared);
}
public void Creates_computation_chain_ramifying_code()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/TestFunctions.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var methodSyntax = SyntaxOperations
.FindMethodsOfClass(syntaxTree, nameof(TestFunctions), nameof(TestFunctions.ProcessInt32arameterWithRamification))
.Value
.Single();
var methodAnalysis = MethodBlockAnalysis.FromSemanticModel(methodSyntax, semanticModel);
var returnSyntax = methodAnalysis.BodyBlock.DescendantNodes().OfType <ReturnStatementSyntax>().Single();
var chainHead = ComputationGraph.FromReturnStatement(returnSyntax, methodAnalysis, methodAnalysis.MethodDeclarationSyntax.Span).Item1.A;
}
public void Creates_computation_chain_from_member_access_expr()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/TestFunctions.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var methodSyntax = SyntaxOperations
.FindMethodsOfClass(syntaxTree, nameof(TestFunctions), nameof(TestFunctions.ProcessStringParameter))
.Value
.Single();
var methodAnalysis = MethodBlockAnalysis.FromSemanticModel(methodSyntax, semanticModel);
var returnSyntax = methodAnalysis.BodyBlock.DescendantNodes().OfType <ReturnStatementSyntax>().Single();
var chainHead = ComputationGraph.FromReturnStatement(returnSyntax, methodAnalysis, methodAnalysis.MethodDeclarationSyntax.Span).Item1.A;
var propAccess_Name = _Assert_ReturnStatement(chainHead);
var invoc_GetType = _Assert_MemberAccess(propAccess_Name, nameof(Type.Name)).A;
var(memberAccess_GetType, args) = _Assert_Invocation(invoc_GetType, nameof(object.GetType));
CollectionAssert.That.IsEmpty(args);
var invoc_ElementAt = _Assert_MemberAccess(memberAccess_GetType, nameof(object.GetType)).A;
var(memberAccess_ElementAt, elementAt_Args) = _Assert_Invocation(invoc_ElementAt, "ElementAt");
_Assert_Literal(elementAt_Args.Single().A, 2);
var ident_x = _Assert_MemberAccess(memberAccess_ElementAt, "ElementAt").A;
var methodParam_x = _Assert_Identifier(ident_x, "x").A;
_Assert_MethodParam(methodParam_x, "x", typeof(string), methodAnalysis);
}
public void Finds_all_instance_methods()
{
var classToAnalyze = typeof(PersonObject);
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/PersonObject.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classDeclarationSyntax = SyntaxOperations.FindClass <PersonObject>(syntaxTree);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var typeSymbol = SemanticOperations.FindClassSingle <PersonObject>(syntaxTree, semanticModel).A;
var members = typeSymbol.GetMembers();
var methods = members.Where(x => x.Kind == SymbolKind.Method).Cast <IMethodSymbol>().ToList();
var staticMethod = methods.Where(x => !x.IsStatic && x.MethodKind == MethodKind.Ordinary).Single();
Assert.AreEqual(nameof(PersonObject.AddChild), staticMethod.Name);
}
public void Partial_chain_of_constructors_can_be_obtained_from_partial_code_2()
{
var codeAsText2 = File.ReadAllText(@"SyntaxAnalyserExamples/PartialClass.part2.cs");
var syntaxTree2 = SyntaxOperations.Parse(codeAsText2);
var classDeclarationSyntax2 = SyntaxOperations.FindClass <PartialClass>(syntaxTree2).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree2, new[] { syntaxTree2 });
var twoArgsCtor = SyntaxOperations
.FindConstructorsOf(classDeclarationSyntax2, semanticModel, argsCount: 2)
.Single();
var(firstLink, isCompleted) = ChainOfConstructor.StartingFrom(twoArgsCtor, classDeclarationSyntax2, semanticModel);
Assert.IsFalse(isCompleted);
_Assert_IsIntermadiateLink(firstLink, classDeclarationSyntax2, twoArgsCtor);
}
public void Finds_all_readonly_properties()
{
var classToAnalyze = typeof(PersonObject);
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/PersonObject.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var classDeclarationSyntax = SyntaxOperations.FindClass <PersonObject>(syntaxTree).A;
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var typeSymbol = SemanticOperations.FindClassSingle <PersonObject>(syntaxTree, semanticModel).A;
var members = typeSymbol.GetMembers();
var props = members.Where(x => x.Kind == SymbolKind.Property).Cast <IPropertySymbol>().ToList();
var readOnlyProps = props.Where(x => x.IsReadOnly).ToList();
CollectionAssert.AreEquivalent(new[] { nameof(PersonObject.Id), nameof(PersonObject.Name) }, readOnlyProps.Select(x => x.Name).ToArray());
}
public void Throws_when_not_a_simple_data_flow()
{
var codeAsText = File.ReadAllText(@"SyntaxAnalyserExamples/TestFunctions.cs");
var syntaxTree = SyntaxOperations.Parse(codeAsText);
var semanticModel = SemanticOperations.GetSemanticModel(syntaxTree);
var methodSyntax = SyntaxOperations
.FindMethodsOfClass(syntaxTree, nameof(TestFunctions), nameof(TestFunctions.IncrementUntil10))
.Value
.Single();
var methodAnalysis = MethodBlockAnalysis.FromSemanticModel(methodSyntax, semanticModel);
var returnSyntax = methodAnalysis.BodyBlock.DescendantNodes().OfType <ReturnStatementSyntax>().Single();
var identSyntax = SyntaxOperations.GetVariable(returnSyntax);
var res = SemanticOperations.GetIdentifierDeclarationSyntax(identSyntax, methodAnalysis).Value;
Assert.IsTrue(res.IsB);
}
