protected TDeclaration WithAccessorList(
TDeclaration declaration, OptionSet options, ParseOptions parseOptions)
{
var expressionBody = GetExpressionBody(declaration);
var semicolonToken = GetSemicolonToken(declaration);
var expressionBodyPreference = options.GetOption(CSharpCodeStyleOptions.PreferExpressionBodiedAccessors).Value;
expressionBody.TryConvertToBlock(GetSemicolonToken(declaration), CreateReturnStatementForExpression(declaration), out var block);
var useExpressionBodyIfAvailable =
expressionBodyPreference != ExpressionBodyPreference.Never &&
((CSharpParseOptions)parseOptions).LanguageVersion >= LanguageVersion.CSharp7;
AccessorDeclarationSyntax accessor;
if (block == null ||
useExpressionBodyIfAvailable)
{
accessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithExpressionBody(expressionBody)
.WithSemicolonToken(semicolonToken);
}
else
{
accessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, block);
}
return(WithAccessorList(declaration, SyntaxFactory.AccessorList(
SyntaxFactory.SingletonList(accessor))));
}
public StaticClassPropertyWithCodeAnalysis(
ClassMemberVisibilityModifier visibility,
ITypeReferenceWithCodeAnalysis type,
string name,
MethodBodyWithCodeAnalysis getAccessor,
MethodBodyWithCodeAnalysis setAccessor)
: this()
{
List <AccessorDeclarationSyntax> accessorSyntax = new List <AccessorDeclarationSyntax>();
if (getAccessor != null)
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.GetKeyword, getAccessor.Syntax));
}
if (setAccessor != null)
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.SetKeyword, setAccessor.Syntax));
}
Syntax = SyntaxFactory.PropertyDeclaration(
default(SyntaxList <AttributeListSyntax>),
default(SyntaxTokenList).WithClassMemberVisibilityModifier(visibility),
type.Syntax,
null,
SyntaxFactory.Identifier(name),
SyntaxFactory.AccessorList(SyntaxFactory.List(accessorSyntax)));
}
public static TypeDeclarationSyntax ConvertToReadonly(TypeDeclarationSyntax typeDeclaration, SyntaxGenerator generator)
{
var propertiesToSetFrmConstructor = new List <PropertyDeclarationSyntax>();
var newMembers = typeDeclaration.Members.Select(x =>
{
if (x is PropertyDeclarationSyntax propertyDeclaration && propertyDeclaration.Modifiers.Any(SyntaxKind.PublicKeyword) && propertyDeclaration.AccessorList != null)
{
propertiesToSetFrmConstructor.Add(propertyDeclaration);
var accessorsWithoutSetter = propertyDeclaration.AccessorList.Accessors.Where(a => a.Kind() != SyntaxKind.SetAccessorDeclaration);
return(propertyDeclaration.WithAccessorList(SyntaxFactory.AccessorList(new SyntaxList <AccessorDeclarationSyntax>(accessorsWithoutSetter))));
}
return(x);
}).ToList();
var newConstructor = GenerateConstructor(typeDeclaration, generator, propertiesToSetFrmConstructor) as ConstructorDeclarationSyntax;
var newConstructorParameters = GetConstructorParameters(newConstructor);
var allConstructors = typeDeclaration.Members.Where(x => x.IsKind(SyntaxKind.ConstructorDeclaration)).OfType <ConstructorDeclarationSyntax>();
var newConstructorAlreadyExists = allConstructors.Any(c => GetConstructorParameters(c).SetEquals(newConstructorParameters));
if (newConstructorAlreadyExists == false)
{
newMembers.Add(newConstructor);
}
return(typeDeclaration.WithMembers(newMembers));
}
private async Task <Document> ChangePropertySetAsync(Document document, PropertyDeclarationSyntax propertyStatement, CancellationToken cancellationToken, FixType fixType)
{
var semanticModel = await document.GetSemanticModelAsync(cancellationToken);
var getAcessor = (propertyStatement.AccessorList.Accessors[0].Keyword.Text == "get") ? propertyStatement.AccessorList.Accessors[0] : propertyStatement.AccessorList.Accessors[1];
var setAcessor = (propertyStatement.AccessorList.Accessors[0].Keyword.Text == "set") ? propertyStatement.AccessorList.Accessors[0] : propertyStatement.AccessorList.Accessors[1];
var privateprotectedModifier = SyntaxFactory.Token(fixType == FixType.PrivateFix ? SyntaxKind.PrivateKeyword : SyntaxKind.ProtectedKeyword)
.WithAdditionalAnnotations(Formatter.Annotation);
var modifiers = setAcessor.Modifiers.Add(privateprotectedModifier);
setAcessor = setAcessor.WithModifiers(modifiers);
var newProperty = SyntaxFactory.PropertyDeclaration(propertyStatement.Type, propertyStatement.Identifier)
.WithModifiers(propertyStatement.Modifiers)
.WithAccessorList(SyntaxFactory.AccessorList(SyntaxFactory.List <AccessorDeclarationSyntax>(new AccessorDeclarationSyntax[] { getAcessor, setAcessor })))
.WithLeadingTrivia(propertyStatement.GetLeadingTrivia()).WithTrailingTrivia(propertyStatement.GetTrailingTrivia())
.WithAdditionalAnnotations(Formatter.Annotation);
var root = await document.GetSyntaxRootAsync();
var newRoot = root.ReplaceNode(propertyStatement, newProperty);
var newDocument = document.WithSyntaxRoot(newRoot);
return(newDocument);
}
private SyntaxList <MemberDeclarationSyntax> CreateProperties(IEnumerable <ParameterDefinition> parameters, Dictionary <string, SyntaxTriviaList> leadingTrivia)
{
var result = SyntaxFactory.List <MemberDeclarationSyntax>();
foreach (var parameter in parameters)
{
string name = Common.PascalCasing(parameter.Name);
var newProperty = SyntaxFactory.PropertyDeclaration(parameter.Type, name)
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List(
new[] {
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken))
}
)
)
)
.WithModifiers(SyntaxTokenList.Create(SyntaxFactory.Token(SyntaxKind.PublicKeyword)));
if (leadingTrivia.TryGetValue(name, out var lt))
{
newProperty = newProperty.WithLeadingTrivia(lt);
}
result = result.Add(newProperty);
}
return(result);
}
private static List <PropertyDeclarationSyntax> NewPropertyClassFactory(MethodDeclarationSyntax methodOld)
{
var newGetSyntax = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken));
var newSetSyntax = SyntaxFactory.AccessorDeclaration(SyntaxKind.SetAccessorDeclaration)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken));
var acessorSyntax = SyntaxFactory.AccessorList(
SyntaxFactory.Token(SyntaxKind.OpenBraceToken),
SyntaxFactory.List(new[] { newGetSyntax, newSetSyntax }),
SyntaxFactory.Token(SyntaxKind.CloseBraceToken));
var propertys = new List <PropertyDeclarationSyntax>();
foreach (ParameterSyntax param in methodOld.ParameterList.Parameters)
{
var property = SyntaxFactory.PropertyDeclaration(
default(SyntaxList <AttributeListSyntax>),
SyntaxFactory.TokenList(new[] { SyntaxFactory.Token(SyntaxKind.PublicKeyword) }),
param.Type,
default(ExplicitInterfaceSpecifierSyntax),
SyntaxFactory.Identifier(FirstLetteToUpper(param.Identifier.Text)),
acessorSyntax);
propertys.Add(property);
}
return(propertys);
}
public static PropertyDeclarationSyntax CreateListAuto(
string dataType,
string propertyName,
bool initializeList = true)
{
var propertyDeclaration = SyntaxFactory.PropertyDeclaration(
SyntaxFactory.GenericName(SyntaxFactory.Identifier(Microsoft.OpenApi.Models.NameConstants.List))
.WithTypeArgumentList(SyntaxTypeArgumentListFactory.CreateWithOneItem(dataType)),
SyntaxFactory.Identifier(propertyName))
.AddModifiers(SyntaxTokenFactory.PublicKeyword())
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List(
new[]
{
SyntaxAccessorDeclarationFactory.Get(),
SyntaxAccessorDeclarationFactory.Set(),
})));
if (initializeList)
{
propertyDeclaration = propertyDeclaration.WithInitializer(
SyntaxFactory.EqualsValueClause(
SyntaxFactory.ObjectCreationExpression(
SyntaxFactory.GenericName(SyntaxFactory.Identifier(Microsoft.OpenApi.Models.NameConstants.List))
.WithTypeArgumentList(SyntaxTypeArgumentListFactory.CreateWithOneItem(dataType)))
.WithArgumentList(
SyntaxFactory.ArgumentList())))
.WithSemicolonToken(SyntaxTokenFactory.Semicolon());
}
return(propertyDeclaration);
}
public void TestSpacingOnNullableDatetimeType()
{
var syntaxNode = SyntaxFactory
.CompilationUnit()
.WithMembers(
SyntaxFactory.SingletonList <MemberDeclarationSyntax>(
SyntaxFactory
.ClassDeclaration("C")
.WithMembers(
SyntaxFactory.SingletonList <MemberDeclarationSyntax>(
SyntaxFactory
.PropertyDeclaration(
SyntaxFactory.NullableType(
SyntaxFactory.ParseTypeName("DateTime")
),
SyntaxFactory.Identifier("P")
)
.WithAccessorList(SyntaxFactory.AccessorList())
)
)
)
)
.NormalizeWhitespace();
// no space between DateTime and ?
Assert.Equal("class C\r\n{\r\n DateTime? P { }\r\n}", syntaxNode.ToFullString());
}
private static AccessorListSyntax GenerateAccessorList(
IPropertySymbol property,
CodeGenerationDestination destination,
CodeGenerationOptions options,
ParseOptions parseOptions
)
{
var setAccessorKind =
property.SetMethod?.IsInitOnly == true
? SyntaxKind.InitAccessorDeclaration
: SyntaxKind.SetAccessorDeclaration;
var accessors = new List <AccessorDeclarationSyntax>
{
GenerateAccessorDeclaration(
property,
property.GetMethod,
SyntaxKind.GetAccessorDeclaration,
destination,
options,
parseOptions
),
GenerateAccessorDeclaration(
property,
property.SetMethod,
setAccessorKind,
destination,
options,
parseOptions
),
};
return(accessors[0] == null && accessors[1] == null
? null
: SyntaxFactory.AccessorList(accessors.WhereNotNull().ToSyntaxList()));
}
private async Task <Solution> UsePropertyAsync(Document document, SyntaxNode statement)
{
// Create a new property
// Using property naming conventions
// Including possible initializers
// And attributes
var variableDeclarator = statement.AncestorsAndSelf().OfType <VariableDeclaratorSyntax>().First();
var fieldStatement = variableDeclarator.AncestorsAndSelf().OfType <FieldDeclarationSyntax>().First();
var variableDeclaration = variableDeclarator.AncestorsAndSelf().OfType <VariableDeclarationSyntax>().First();
var newProperty = SyntaxFactory.PropertyDeclaration(variableDeclaration.Type, variableDeclarator.Identifier.WithConvention(NamingConvention.UpperCamelCase))
.WithAttributeLists(fieldStatement.AttributeLists)
.WithModifiers(fieldStatement.Modifiers)
.WithAdditionalAnnotations(Formatter.Annotation)
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List(new[]
{
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration).WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken)),
SyntaxFactory.AccessorDeclaration(SyntaxKind.SetAccessorDeclaration).WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken))
})));
if (variableDeclarator.Initializer != null)
{
newProperty = newProperty.WithInitializer(variableDeclarator.Initializer).WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken));
}
var editor = await DocumentEditor.CreateAsync(document);
editor.InsertAfter(statement, newProperty);
editor.RemoveNode(variableDeclarator);
return(editor.GetChangedDocument().Project.Solution);
}
public void TestSpacingOnNullableIntType()
{
var syntaxNode = SyntaxFactory
.CompilationUnit()
.WithMembers(
SyntaxFactory.SingletonList <MemberDeclarationSyntax>(
SyntaxFactory
.ClassDeclaration("C")
.WithMembers(
SyntaxFactory.SingletonList <MemberDeclarationSyntax>(
SyntaxFactory
.PropertyDeclaration(
SyntaxFactory.NullableType(
SyntaxFactory.PredefinedType(
SyntaxFactory.Token(SyntaxKind.IntKeyword)
)
),
SyntaxFactory.Identifier("P")
)
.WithAccessorList(SyntaxFactory.AccessorList())
)
)
)
)
.NormalizeWhitespace();
// no space between int and ?
Assert.Equal("class C\r\n{\r\n int? P { }\r\n}", syntaxNode.ToFullString());
}
public static ClassDeclarationSyntax AddProperty(this ClassDeclarationSyntax currentClass,
string name, INamedTypeSymbol type)
{
if (currentClass.DescendantNodes().OfType <PropertyDeclarationSyntax>()
.Any(p => p.Identifier.Text == name))
{
// class already has the specified property
return(currentClass);
}
if (currentClass.DescendantNodes().OfType <PropertyDeclarationSyntax>().Count() > 128)
{
throw new Exception("Class already has too many properties");
}
var typeSentax = SyntaxFactory.ParseTypeName(type.Name);
var newProperty = SyntaxFactory.PropertyDeclaration(typeSentax, name)
.WithModifiers(
SyntaxFactory.TokenList(
SyntaxFactory.Token(SyntaxKind.PublicKeyword)))
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List(
new[]
{
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken)),
SyntaxFactory.AccessorDeclaration(SyntaxKind.SetAccessorDeclaration)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken))
})));
return(currentClass.AddMembers(newProperty));
}
public static PropertyDeclarationSyntax AutoPropertyDeclaration(
IEnumerable <SyntaxKind> modifiers, TypeSyntax type, string propertyName,
SyntaxKind?setModifier = null, SyntaxKind?getModifier = null, bool isAbstract = false)
{
var accesors = new List <AccessorDeclarationSyntax>();
if (!(isAbstract && getModifier == SyntaxKind.PrivateKeyword))
{
accesors.Add(
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithModifiers(TokenList(getModifier))
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken)));
}
if (!(isAbstract && setModifier == SyntaxKind.PrivateKeyword))
{
accesors.Add(
SyntaxFactory.AccessorDeclaration(SyntaxKind.SetAccessorDeclaration)
.WithModifiers(TokenList(setModifier))
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.SemicolonToken)));
}
return(SyntaxFactory.PropertyDeclaration(type, propertyName)
.WithModifiers(TokenList(modifiers))
.WithAccessorList(SyntaxFactory.AccessorList(accesors.ToSyntaxList())));
}
public StructIndexerWithCodeAnalysis(
StructMemberVisibilityModifier visibility,
ITypeReferenceWithCodeAnalysis type,
IEnumerable <IndexerParameterWithCodeAnalysis> parameters,
MethodBodyWithCodeAnalysis getAccessor,
MethodBodyWithCodeAnalysis setAccessor)
: this()
{
var parameterSyntax = parameters.Select(parameter => parameter.Syntax);
List <AccessorDeclarationSyntax> accessorSyntax = new List <AccessorDeclarationSyntax>();
if (getAccessor != null)
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.GetKeyword, getAccessor.Syntax));
}
if (setAccessor != null)
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.SetKeyword, setAccessor.Syntax));
}
Syntax = SyntaxFactory.IndexerDeclaration(
default(SyntaxList <AttributeListSyntax>),
default(SyntaxTokenList).WithStructMemberVisibilityModifier(visibility),
type.Syntax,
null,
SyntaxFactory.BracketedParameterList(SyntaxFactory.SeparatedList(parameterSyntax)),
SyntaxFactory.AccessorList(SyntaxFactory.List(accessorSyntax)));
}
public PropertyDeclarationSyntax ConvertMethodsToPropertyWorker(
DocumentOptionSet documentOptions, ParseOptions parseOptions,
SemanticModel semanticModel, SyntaxGenerator generator, GetAndSetMethods getAndSetMethods,
string propertyName, bool nameChanged)
{
var getMethodDeclaration = getAndSetMethods.GetMethodDeclaration as MethodDeclarationSyntax;
var getAccessor = CreateGetAccessor(getAndSetMethods, documentOptions, parseOptions);
var setAccessor = CreateSetAccessor(semanticModel, generator, getAndSetMethods, documentOptions, parseOptions);
var property = SyntaxFactory.PropertyDeclaration(
getMethodDeclaration.AttributeLists, getMethodDeclaration.Modifiers,
getMethodDeclaration.ReturnType, getMethodDeclaration.ExplicitInterfaceSpecifier,
GetPropertyName(getMethodDeclaration.Identifier, propertyName, nameChanged), accessorList: null);
IEnumerable <SyntaxTrivia> trivia = getMethodDeclaration.GetLeadingTrivia();
var setMethodDeclaration = getAndSetMethods.SetMethodDeclaration;
if (setMethodDeclaration != null)
{
trivia = trivia.Concat(setMethodDeclaration.GetLeadingTrivia());
}
property = property.WithLeadingTrivia(trivia.Where(t => !t.IsDirective));
var accessorList = SyntaxFactory.AccessorList(SyntaxFactory.SingletonList(getAccessor));
if (setAccessor != null)
{
accessorList = accessorList.AddAccessors(setAccessor);
}
property = property.WithAccessorList(accessorList);
return(property.WithAdditionalAnnotations(Formatter.Annotation));
}
public PropertyDeclarationSyntax GetPropertyDeclarationSyntax(string propertyName, SyntaxKind syntaxKind)
{
var typeSyntax = ListPropertyDeclarationSyntaxGenerator.GetTypeSyntax(propertyName, syntaxKind);
return(SyntaxFactory.PropertyDeclaration(typeSyntax,
SyntaxFactory.Identifier(
SyntaxFactory.TriviaList(),
propertyName,
SyntaxFactory.TriviaList(
SyntaxFactory.Space)))
.WithModifiers(
SyntaxFactory.TokenList(
SyntaxFactory.Token(
SyntaxFactory.TriviaList(),
SyntaxKind.PublicKeyword,
SyntaxFactory.TriviaList(
SyntaxFactory.Space))))
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List <AccessorDeclarationSyntax>(
new AccessorDeclarationSyntax[]
{
SyntaxFactory.AccessorDeclaration(
SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(
SyntaxFactory.Token(SyntaxKind.SemicolonToken))
}))
.WithCloseBraceToken(
SyntaxFactory.Token(
SyntaxFactory.TriviaList(),
SyntaxKind.CloseBraceToken,
SyntaxFactory.TriviaList(
new[] { SyntaxFactory.Space, SyntaxFactory.LineFeed })))));
}
public PropertyDeclarationSyntax GeneratePropertyForName(FieldInfo fieldInfo, string fieldName, string clsName = "")
{
var identifier = SyntaxFactory.Identifier(fieldName);
SyntaxList <AccessorDeclarationSyntax> accessors = new SyntaxList <AccessorDeclarationSyntax>()
{
};
string cvname = FieldGenerator.GetPrefixedName(fieldName);
string hookexpr = HookTemplates.FieldUpdateHook(fieldName, clsName, "value");
accessors = accessors.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, GetAccessorBody(cvname)));
accessors = accessors.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.SetAccessorDeclaration, SetAccessorBody(cvname, hookexpr)));
var accessList = SyntaxFactory.AccessorList(accessors);
var outProp = SyntaxFactory.PropertyDeclaration(
new SyntaxList <AttributeListSyntax>()
{
},
fieldInfo.Modifiers,
fieldInfo.Type,
null,
identifier,
accessList
);
return(outProp);
}
public override SyntaxNode VisitEventDeclaration(EventDeclarationSyntax node)
{
if (!node.Identifier.IsMissing)
{
return(node);
}
string event_name = node.Type.ToString();
string delegate_name = event_name + "_delegate";
Debug.Assert(pending_ == null);
pending_ = new ResolveEventArguments(delegate_name, ctx_, members_, node.Modifiers);
return(SyntaxFactory.EventDeclaration(SyntaxFactory.IdentifierName(delegate_name), SyntaxFactory.Identifier(event_name)).
WithModifiers(node.Modifiers).
WithAccessorList(SyntaxFactory.AccessorList(SyntaxFactory.List(new AccessorDeclarationSyntax[]
{
SyntaxFactory.AccessorDeclaration(SyntaxKind.AddAccessorDeclaration,
SyntaxFactory.Block(SyntaxFactory.List(new StatementSyntax[]
{
Compiler.EventAccessor(event_name, true)
}))),
SyntaxFactory.AccessorDeclaration(SyntaxKind.RemoveAccessorDeclaration,
SyntaxFactory.Block(SyntaxFactory.List(new StatementSyntax[]
{
Compiler.EventAccessor(event_name, false)
}))),
}))));
}
public void TestCanAccessNonExistentProperty()
{
var propertyAccessor = LightupHelpers.CreateSyntaxPropertyAccessor <SyntaxNode, object>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(propertyAccessor);
Assert.Null(propertyAccessor(SyntaxFactory.AccessorList()));
Assert.Throws <NullReferenceException>(() => propertyAccessor(null));
var withPropertyAccessor = LightupHelpers.CreateSyntaxWithPropertyAccessor <SyntaxNode, object>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(withPropertyAccessor);
Assert.NotNull(withPropertyAccessor(SyntaxFactory.AccessorList(), null));
Assert.ThrowsAny <NotSupportedException>(() => withPropertyAccessor(SyntaxFactory.AccessorList(), new object()));
Assert.Throws <NullReferenceException>(() => withPropertyAccessor(null, new object()));
var separatedListPropertyAccessor = LightupHelpers.CreateSeparatedSyntaxListPropertyAccessor <SyntaxNode, SyntaxNode>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(separatedListPropertyAccessor);
Assert.NotNull(separatedListPropertyAccessor(SyntaxFactory.AccessorList()));
Assert.Throws <NullReferenceException>(() => separatedListPropertyAccessor(null));
var separatedListWithPropertyAccessor = LightupHelpers.CreateSeparatedSyntaxListWithPropertyAccessor <SyntaxNode, SyntaxNode>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(separatedListWithPropertyAccessor);
Assert.NotNull(separatedListWithPropertyAccessor(SyntaxFactory.AccessorList(), null));
Assert.ThrowsAny <NotSupportedException>(() => separatedListWithPropertyAccessor(SyntaxFactory.AccessorList(), new SeparatedSyntaxListWrapper <SyntaxNode> .AutoWrapSeparatedSyntaxList <LiteralExpressionSyntax>(SyntaxFactory.SingletonSeparatedList(SyntaxFactory.LiteralExpression(SyntaxKind.NullLiteralExpression)))));
Assert.Throws <NullReferenceException>(() => separatedListWithPropertyAccessor(null, SeparatedSyntaxListWrapper <SyntaxNode> .UnsupportedEmpty));
}
/// <summary>
/// Normalizes the <paramref name="declaration" />.
/// </summary>
public override SyntaxNode VisitPropertyDeclaration(PropertyDeclarationSyntax declaration)
{
// Nothing to do here for properties without expression bodies
if (declaration.ExpressionBody == null)
{
return(declaration);
}
// Nothing to do here for properties not defined in fault effects or for properties that are no overrides of some port
var propertySymbol = declaration.GetPropertySymbol(SemanticModel);
if (!propertySymbol.ContainingType.IsFaultEffect(SemanticModel) || !propertySymbol.IsOverride)
{
return(declaration);
}
var originalDeclaration = declaration;
var statements = AsStatementBody(propertySymbol.GetMethod, declaration.ExpressionBody.Expression);
var getter = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, statements);
var accessorList = SyntaxFactory.AccessorList(SyntaxFactory.SingletonList(getter));
declaration = declaration.WithAccessorList(accessorList);
declaration = declaration.WithExpressionBody(null).WithSemicolonToken(default(SyntaxToken));
return(declaration.EnsureLineCount(originalDeclaration));
}
private static SyntaxNode WithBlockBody(SyntaxNode node, BlockSyntax body)
{
switch (node)
{
case BasePropertyDeclarationSyntax baseProperty:
var accessorList = SyntaxFactory.AccessorList(SyntaxFactory.SingletonList(
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, body)));
return baseProperty
.TryWithExpressionBody(null)
.WithAccessorList(accessorList)
.TryWithSemicolonToken(SyntaxFactory.Token(SyntaxKind.None))
.WithTriviaFrom(baseProperty);
case AccessorDeclarationSyntax accessor:
return accessor
.WithExpressionBody(null)
.WithBody(body)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.None))
.WithTriviaFrom(accessor);
case BaseMethodDeclarationSyntax baseMethod:
return baseMethod
.WithExpressionBody(null)
.WithBody(body)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.None))
.WithTriviaFrom(baseMethod);
case LocalFunctionStatementSyntax localFunction:
return localFunction
.WithExpressionBody(null)
.WithBody(body)
.WithSemicolonToken(SyntaxFactory.Token(SyntaxKind.None))
.WithTriviaFrom(localFunction);
default:
throw ExceptionUtilities.UnexpectedValue(node);
}
}
public override SyntaxNode VisitIndexerDeclaration(IndexerDeclarationSyntax node)
{
if (node.ExpressionBody == null)
{
return(base.VisitIndexerDeclaration(node));
}
if (node.AccessorList != null)
{
//Invalid indexer declaration. No need to pass it further. Let compiler deal with it directly.
return(node);
}
var blockResumeLocation = GetBlockResumeLocation(node.ExpressionBody);
node = (IndexerDeclarationSyntax)base.VisitIndexerDeclaration(node);
return(node.WithExpressionBody(null)
.WithAccessorList(
SyntaxFactory.AccessorList(
new SyntaxList <AccessorDeclarationSyntax>().Add(
SyntaxFactory.AccessorDeclaration(
SyntaxKind.GetAccessorDeclaration,
CreateDelegateMethodBody(
node.ExpressionBody.Expression,
blockResumeLocation,
hasReturnValue: true
)
)
)
)
));
}
public PropertyDeclarationSyntax GetPropertyDeclarationSyntax(string propertyName, SyntaxKind underlyingSyntaxKind)
{
var typeSyntax = GetTypeSyntax(propertyName, underlyingSyntaxKind);
return(SyntaxFactory.PropertyDeclaration(
SyntaxFactory.GenericName(
SyntaxFactory.Identifier("List"))
.WithTypeArgumentList(
SyntaxFactory.TypeArgumentList(
SyntaxFactory.SingletonSeparatedList <TypeSyntax>(typeSyntax))),
SyntaxFactory.Identifier(propertyName))
.WithModifiers(
SyntaxFactory.TokenList(
SyntaxFactory.Token(SyntaxKind.PublicKeyword)))
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.List <AccessorDeclarationSyntax>(
new AccessorDeclarationSyntax[] {
SyntaxFactory.AccessorDeclaration(
SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(
SyntaxFactory.Token(SyntaxKind.SemicolonToken)),
SyntaxFactory.AccessorDeclaration(
SyntaxKind.SetAccessorDeclaration)
.WithSemicolonToken(
SyntaxFactory.Token(SyntaxKind.SemicolonToken))
}))));
}
protected TDeclaration WithAccessorList(SemanticModel semanticModel, TDeclaration declaration)
{
var expressionBody = GetExpressionBody(declaration);
var semicolonToken = GetSemicolonToken(declaration);
// When converting an expression-bodied property to a block body, always attempt to
// create an accessor with a block body (even if the user likes expression bodied
// accessors. While this technically doesn't match their preferences, it fits with
// the far more likely scenario that the user wants to convert this property into
// a full property so that they can flesh out the body contents. If we keep around
// an expression bodied accessor they'll just have to convert that to a block as well
// and that means two steps to take instead of one.
expressionBody.TryConvertToBlock(
GetSemicolonToken(declaration),
CreateReturnStatementForExpression(semanticModel, declaration),
out var block);
var accessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration);
accessor = block != null
? accessor.WithBody(block)
: accessor.WithExpressionBody(expressionBody)
.WithSemicolonToken(semicolonToken);
return(WithAccessorList(declaration, SyntaxFactory.AccessorList(
SyntaxFactory.SingletonList(accessor))));
}
protected TDeclaration WithAccessorList(
TDeclaration declaration, OptionSet options)
{
var expressionBody = GetExpressionBody(declaration);
var semicolonToken = GetSemicolonToken(declaration);
var preferExpressionBodiedAccessors = options.GetOption(CSharpCodeStyleOptions.PreferExpressionBodiedAccessors).Value;
AccessorDeclarationSyntax accessor;
if (preferExpressionBodiedAccessors)
{
accessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithExpressionBody(expressionBody)
.WithSemicolonToken(semicolonToken);
}
else
{
var block = expressionBody.ConvertToBlock(
GetSemicolonToken(declaration),
CreateReturnStatementForExpression(declaration));
accessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, block);
}
return(WithAccessorList(declaration, SyntaxFactory.AccessorList(
SyntaxFactory.SingletonList(accessor))));
}
private static PropertyDeclarationSyntax ToStaticGetOnly(PropertyDeclarationSyntax property)
{
if (!property.Modifiers.Any(SyntaxKind.StaticKeyword))
{
property = property.WithModifiers(property.Modifiers.WithStatic());
}
if (property.TryGetSetter(out var setter) &&
setter.Body == null)
{
return(property.RemoveNode(setter, SyntaxRemoveOptions.KeepNoTrivia));
}
if (property.ExpressionBody != null)
{
return(property
.WithInitializer(SyntaxFactory.EqualsValueClause(property.ExpressionBody.Expression))
.WithExpressionBody(null)
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.SingletonList(
SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration)
.WithSemicolonToken(
SyntaxFactory.Token(SyntaxKind.SemicolonToken))))));
}
return(property);
}
private static PropertyDeclarationSyntax ExpandProperty(PropertyDeclarationSyntax property, string backingFieldName)
{
AccessorDeclarationSyntax getter, setter;
if (!ExpansionChecker.TryGetAccessors(property, out getter, out setter))
{
throw new ArgumentException();
}
if (getter.Body == null)
{
var returnFieldStatement = SyntaxFactory.ParseStatement(string.Format("return {0};", backingFieldName));
getter = getter
.WithBody(SyntaxFactory.Block(SyntaxFactory.SingletonList(returnFieldStatement)));
}
getter = getter
.WithSemicolonToken(default(SyntaxToken));
var setPropertyStatement = SyntaxFactory.ParseStatement(string.Format("SetProperty(ref {0}, value, \"{1}\");", backingFieldName, property.Identifier.ValueText));
setter = setter
.WithBody(SyntaxFactory.Block(SyntaxFactory.SingletonList(setPropertyStatement)))
.WithSemicolonToken(default(SyntaxToken));
var newProperty = property
.WithAccessorList(SyntaxFactory.AccessorList(SyntaxFactory.List(new[] { getter, setter })))
.WithAdditionalAnnotations(Formatter.Annotation);
return(newProperty);
}
public AbstractIndexerWithCodeAnalysis(
ClassMemberVisibilityModifier visibility,
ITypeReferenceWithCodeAnalysis type,
IEnumerable <IndexerParameterWithCodeAnalysis> parameters,
AccessorTypes accessors)
: this()
{
var parameterSyntax = parameters.Select(parameter => parameter.Syntax);
List <AccessorDeclarationSyntax> accessorSyntax = new List <AccessorDeclarationSyntax>();
if (accessors.HasFlag(AccessorTypes.Get))
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.GetKeyword));
}
if (accessors.HasFlag(AccessorTypes.Set))
{
accessorSyntax.Add(SyntaxFactory.AccessorDeclaration(SyntaxKind.SetKeyword));
}
Syntax = SyntaxFactory.IndexerDeclaration(
default(SyntaxList <AttributeListSyntax>),
default(SyntaxTokenList).WithClassMemberVisibilityModifier(visibility).Add(SyntaxKind.AbstractKeyword),
type.Syntax,
null,
SyntaxFactory.BracketedParameterList(SyntaxFactory.SeparatedList(parameterSyntax)),
SyntaxFactory.AccessorList(SyntaxFactory.List(accessorSyntax)));
}
private SyntaxNode VisitBasePropertyDeclaration(BasePropertyDeclarationSyntax node)
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
//HACK: Must cast to dynamic because expression body is only defined on subclasses
if (((dynamic)node).ExpressionBody == null)
{
return(node);
}
var expr = ((dynamic)node).ExpressionBody.Expression;
var statement = SyntaxFactory.ReturnStatement(expr);
var getter = SyntaxFactory.AccessorDeclaration(
SyntaxKind.GetAccessorDeclaration,
SyntaxFactory.Block(statement));
var accessors = SyntaxFactory.AccessorList(
SyntaxFactory.List <AccessorDeclarationSyntax>()
.Add(getter));
return(nodeRewriter
.Try(node, n => ((dynamic)n).WithExpressionBody(null)
.WithAccessorList(accessors))
.Result);
}
private async Task <Document> HandleIndexerDeclaration(IndexerDeclarationSyntax declaration, Document document, CancellationToken cancellationToken)
{
var returnStatement = SyntaxFactory.ReturnStatement(
returnKeyword: SyntaxFactory.Token(SyntaxKind.ReturnKeyword),
expression: declaration.ExpressionBody.Expression,
semicolonToken: declaration.SemicolonToken);
var accessorDeclaration = SyntaxFactory.AccessorDeclaration(
kind: SyntaxKind.GetAccessorDeclaration,
body: SyntaxFactory.Block(returnStatement));
var newDeclaration = declaration
.WithAccessorList(
SyntaxFactory.AccessorList(
SyntaxFactory.SingletonList(accessorDeclaration)))
.WithExpressionBody(null)
.WithSemicolonToken(default(SyntaxToken))
.WithAdditionalAnnotations(Formatter.Annotation);
var oldRoot = await document.GetSyntaxRootAsync(cancellationToken);
var newRoot = oldRoot.ReplaceNode(declaration, newDeclaration);
return(document.WithSyntaxRoot(newRoot));
}
