private IAccessor CreateSetter(IConstructLanguage language, string propertyName, IFieldDeclaration field)
{
string propertyChangedName = language.Name == LanguageNames.CSharp ? "OnPropertyChanged" : "RaisePropertyChangedEvent";
IMethodInvocation onPropertyChanged = language.MethodInvocation(language.None <IExpression>(),
language.Identifier(propertyChangedName),
language.None <ITypeArguments>(),
language.Arguments(
language.Argument(language.StringLiteral(propertyName))));
IMemberAccess fieldUsage = language.MemberAccess(language.None <IExpression>(), field.Identifier);
IExpression valueUsage = language.Expression("value");
IStatement assignment = language.AssignmentStatement(fieldUsage, valueUsage);
IIfStatement ifStatement =
language.IfStatement(
language.BinaryExpression(fieldUsage,
Operator.NotEqual,
valueUsage),
language.Block(assignment, language.ExpressionStatement(onPropertyChanged)));
IAccessor setter = language.Setter(language.Block(ifStatement));
return(setter);
}
private IConstructorDeclaration CreateConstructor(IClassDeclaration classDeclaration, IIdentifier fieldIdentifier, ITypeName typeName)
{
IConstructLanguage language = classDeclaration.Language;
IParameter parameter = language.Parameter(typeName);
NamingPolicy parameterNamingPolicy = parameter.PrimaryNamingPolicy(classDeclaration.FileModel.UserSettings);
string parameterName = parameterNamingPolicy.ChangeNameAccordingToPolicy(classDeclaration.Identifier.Name, classDeclaration.SolutionModel);
parameter.Identifier = language.Identifier(parameterName);
Modifiers constructorModifiers = Modifiers.Public;
Modifiers visibility = classDeclaration.Modifiers.Modifiers.GetVisibility();
if (visibility == Modifiers.None || visibility.IsInternal())
{
constructorModifiers = Modifiers.Internal;
}
IConstructorDeclaration constructor = language.Constructor(language.None <IDocComment>(),
language.None <IAttributes>(),
language.Modifiers(constructorModifiers),
language.Parameters(parameter),
language.None <IConstructorInitializer>(),
language.Block(
language.AssignmentStatement(
language.MemberAccess(language.This(), fieldIdentifier),
language.VariableAccess(parameter.Identifier))));
return(constructor);
}
private static IMethodDeclaration CreateVBInvocator(IEventDeclaration eventDeclaration, IModifiers modifiers,
IList <IArgument> arguments, IList <IParameter> parameters, IConstructLanguage language)
{
IEventInvocation eventInvocation = language.New <IEventInvocation>();
eventInvocation.DelegateInvocation =
language.DelegateInvocation(
language.VariableAccess(eventDeclaration.Identifier),
language.Arguments(arguments));
IMethodDeclaration method = language.Method(
language.None <IDocComment>(),
language.None <IAttributes>(),
modifiers,
language.TypeName(eventDeclaration.VoidTypeAtThisLocation()),
language.None <IMethodTypeParameters>(),
language.Parameters(parameters),
language.Block(
language.ExpressionStatement(eventInvocation)));
NamingPolicy methodsNamingPolicy = method.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string methodName = methodsNamingPolicy.ChangeNameAccordingToPolicy("Raise" + eventDeclaration.Identifier.Name + "Event",
eventDeclaration.SolutionModel);
method.Identifier = language.Identifier(methodName);
return(method);
}
private IClassDeclaration CreateInitialViewModel(IClassDeclaration classDeclaration, IFieldDeclaration fieldDeclaration, IConstructorDeclaration viewModelConstructor)
{
IConstructLanguage language = classDeclaration.Language;
IClassDeclaration viewModel = language.Class(
language.Modifiers(Modifiers.Public),
language.None <IClassTypeParameters>(),
language.None <ITypeName>(),
new List <ITypeName>(),
new List <IDeclaration>()
{
fieldDeclaration, viewModelConstructor
});
NamingPolicy classesPolicy = viewModel.PrimaryNamingPolicy(classDeclaration.FileModel.UserSettings);
string viewModelName = classesPolicy.MakeTypeNameUniqueInNamespace(classDeclaration, classDeclaration.Identifier.Name + "ViewModel");
viewModel.Identifier = language.Identifier(viewModelName);
return(viewModel);
}
private static IMethodDeclaration CreateCSInvocator(IEventDeclaration eventDeclaration, IModifiers modifiers, IList<IArgument> arguments,
IList<IParameter> parameters, IConstructLanguage language)
{
IVariableDeclaration variable = language.Variable(
eventDeclaration.TypeName,
language.VariableAccess(eventDeclaration.Identifier));
NamingPolicy variablesNamingPolicy = variable.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string variableName = variablesNamingPolicy.ChangeNameAccordingToPolicy("on" + eventDeclaration.Identifier.Name,
eventDeclaration.SolutionModel);
variable.Identifier = language.Identifier(variableName);
IIfStatement ifStatement = language.IfStatement(
language.BinaryExpression(
language.VariableAccess(variable.Identifier),
Operator.NotEqual,
language.New<INull>()),
language.Block(
language.ExpressionStatement(
language.DelegateInvocation(
language.VariableAccess(variable.Identifier),
language.Arguments(arguments)))));
IMethodDeclaration method = language.Method(
language.None<IDocComment>(),
language.None<IAttributes>(),
modifiers,
language.TypeName(eventDeclaration.VoidTypeAtThisLocation()),
language.None<IMethodTypeParameters>(),
language.Parameters(parameters),
language.Block(
variable,
ifStatement));
NamingPolicy methodsNamingPolicy = method.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string methodName = methodsNamingPolicy.ChangeNameAccordingToPolicy("on" + eventDeclaration.Identifier.ToUpperFirstLetter().Name,
eventDeclaration.SolutionModel);
method.Identifier = language.Identifier(methodName);
return method;
}
private static IMethodDeclaration CreateCSInvocator(IEventDeclaration eventDeclaration, IModifiers modifiers, IList <IArgument> arguments,
IList <IParameter> parameters, IConstructLanguage language)
{
IVariableDeclaration variable = language.Variable(
eventDeclaration.TypeName,
language.VariableAccess(eventDeclaration.Identifier));
NamingPolicy variablesNamingPolicy = variable.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string variableName = variablesNamingPolicy.ChangeNameAccordingToPolicy("on" + eventDeclaration.Identifier.Name,
eventDeclaration.SolutionModel);
variable.Identifier = language.Identifier(variableName);
IIfStatement ifStatement = language.IfStatement(
language.BinaryExpression(
language.VariableAccess(variable.Identifier),
Operator.NotEqual,
language.New <INull>()),
language.Block(
language.ExpressionStatement(
language.DelegateInvocation(
language.VariableAccess(variable.Identifier),
language.Arguments(arguments)))));
IMethodDeclaration method = language.Method(
language.None <IDocComment>(),
language.None <IAttributes>(),
modifiers,
language.TypeName(eventDeclaration.VoidTypeAtThisLocation()),
language.None <IMethodTypeParameters>(),
language.Parameters(parameters),
language.Block(
variable,
ifStatement));
NamingPolicy methodsNamingPolicy = method.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string methodName = methodsNamingPolicy.ChangeNameAccordingToPolicy("on" + eventDeclaration.Identifier.ToUpperFirstLetter().Name,
eventDeclaration.SolutionModel);
method.Identifier = language.Identifier(methodName);
return(method);
}
public override void Execute(SolutionModel solutionModel, SelectionContext context)
{
FileModel fileModel;
CodeSpan selection;
if (!solutionModel.IsEditorSelection(context, out fileModel, out selection))
{
return;
}
IConstructEnumerable <IFieldDeclaration> fields = FindFields(fileModel, selection);
if (fields.Exist())
{
IConstructLanguage language = fields.Language;
foreach (IFieldDeclaration field in fields)
{
IPropertyDeclaration property = language.Property(
language.None <IDocComment>(),
language.None <IAttributes>(),
language.Modifiers(Modifiers.Public),
language.TypeName(field.TypeName.Type),
language.None <IIdentifier>());
NamingPolicy propertyNamingPolicy = property.PrimaryNamingPolicy(fileModel.UserSettings);
string propertyName = propertyNamingPolicy.MakeMemberNameUniqueInScope(field, field.Identifier.Name);
property.Identifier = language.Identifier(propertyName);
IAccessor getter = language.FieldGetter(field.Identifier);
IAccessor setter = CreateSetter(language, propertyName, field);
property.Accessors = language.Enumerable(new List <IAccessor>()
{
getter, setter
});
field.EnclosingClass.Insert(property);
}
}
}
public override void Execute(SolutionModel solutionModel, SelectionContext context)
{
FileModel fileModel;
CodeSpan selection;
if (!solutionModel.IsEditorSelection(context, out fileModel, out selection))
{
return;
}
IPropertyDeclaration propertyDeclaration = fileModel.InnerMost <IPropertyDeclaration>(selection);
if (IsFieldBackedPropertyWithSetterInsideClass(propertyDeclaration) && EnclosingClassImplementsINotifyPropertyChanged(propertyDeclaration))
{
IConstructLanguage language = propertyDeclaration.Language;
string methodInvocationName = language.Name == LanguageNames.CSharp ? "OnPropertyChanged" : "RaisePropertyChangedEvent";
IMethodInvocation methodInvocation =
language.MethodInvocation(
language.None <IExpression>(),
language.Identifier(methodInvocationName),
language.None <ITypeArguments>(),
language.Arguments(
language.Argument(language.StringLiteral(propertyDeclaration.Identifier.Name))));
IAccessor setter = propertyDeclaration.Setter();
List <IStatement> ifBlockStatements = new List <IStatement>(setter.Block.ChildStatements);
ifBlockStatements.Add(language.ExpressionStatement(methodInvocation));
IIfStatement ifStatement =
language.IfStatement(
language.BinaryExpression(
language.MemberAccess(language.None <IExpression>(),
propertyDeclaration.BackingField().Identifier),
Operator.NotEqual,
language.Expression("value")),
language.Block(ifBlockStatements));
IBlock newBlock = language.Block(ifStatement);
setter.Block = newBlock;
}
}
private IClassDeclaration ImplementINotifyPropertyChangedInterface(IClassDeclaration viewModel, IClassDeclaration wrappedClass)
{
UsingDirectiveHelper.AddUsingDirectiveIfNeeded(wrappedClass, "System", "ComponentModel");
IConstructLanguage language = viewModel.Language;
IIdentifier identifier = language.Identifier(PropertyChangedSimpleTypeName);
ITypeName typeName = language.SimpleTypeName(identifier, language.None <ITypeArguments>());
viewModel.IntroduceInterface(typeName);
wrappedClass.Append(viewModel);
string name = viewModel.Identifier.Name;
viewModel = RebuildSolutionModel(wrappedClass, name);
AddStubsHelper.CreateAllUnimplementedMembers(viewModel, new AddStubsOptions());
return(RebuildSolutionModel(wrappedClass, name));
}
private void InsertWrappedProperties(IClassDeclaration viewModel, List <IPropertyDeclaration> confirmedPropertiesForWrapping, IFieldDeclaration wrappedClassField, IIdentifier onPropertyChangedIdentifier)
{
IConstructLanguage language = viewModel.Language;
foreach (IPropertyDeclaration property in confirmedPropertiesForWrapping)
{
IMemberAccess propertyMemberAccess = language.MemberAccess(
language.MemberAccess(language.None <IExpression>(), wrappedClassField.Identifier),
property.Identifier);
IAccessor getterOfWrapper = language.None <IAccessor>();
IAccessor propertyGetter = property.Getter();
if (propertyGetter.Exists && IsAccessorVisibleOutsideClass(propertyGetter.Modifiers))
{
getterOfWrapper = language.Getter(
language.Modifiers(propertyGetter.Modifiers.Modifiers),
language.Block(
language.ReturnStatement(propertyMemberAccess)));
}
IAccessor setterOfWrapper = language.None <IAccessor>();
IAccessor propertySetter = property.Setter();
if (propertySetter.Exists && IsAccessorVisibleOutsideClass(propertySetter.Modifiers))
{
IStatement assignment = language.AssignmentStatement(propertyMemberAccess, language.Expression("value"));
IMethodInvocation onPropertyChangedInvocation =
language.MethodInvocation(
language.None <IExpression>(),
onPropertyChangedIdentifier,
language.None <ITypeArguments>(),
language.Arguments(
language.Argument(language.StringLiteral(property.Identifier.Name))));
IIfStatement ifStatement =
language.IfStatement(
language.BinaryExpression(propertyMemberAccess,
Operator.NotEqual,
language.Expression("value")),
language.Block(assignment, language.ExpressionStatement(onPropertyChangedInvocation)));
setterOfWrapper = language.Setter(
language.Modifiers(propertyGetter.Modifiers.Modifiers),
language.Block(ifStatement));
}
if (getterOfWrapper.Exists || setterOfWrapper.Exists)
{
IPropertyDeclaration wrapperProperty = language.Property(
language.None <IDocComment>(),
language.None <IAttributes>(),
property.Modifiers,
property.TypeName,
property.Identifier,
getterOfWrapper,
setterOfWrapper);
viewModel.Insert(wrapperProperty);
}
}
}
private IAccessor CreateSetter(IConstructLanguage language, string propertyName, IFieldDeclaration field)
{
string propertyChangedName = language.Name == LanguageNames.CSharp ? "OnPropertyChanged" : "RaisePropertyChangedEvent";
IMethodInvocation onPropertyChanged = language.MethodInvocation(language.None<IExpression>(),
language.Identifier(propertyChangedName),
language.None<ITypeArguments>(),
language.Arguments(
language.Argument(language.StringLiteral(propertyName))));
IMemberAccess fieldUsage = language.MemberAccess(language.None<IExpression>(), field.Identifier);
IExpression valueUsage = language.Expression("value");
IStatement assignment = language.AssignmentStatement(fieldUsage, valueUsage);
IIfStatement ifStatement =
language.IfStatement(
language.BinaryExpression(fieldUsage,
Operator.NotEqual,
valueUsage),
language.Block(assignment, language.ExpressionStatement(onPropertyChanged)));
IAccessor setter = language.Setter(language.Block(ifStatement));
return setter;
}
private static IMethodDeclaration CreateVBInvocator(IEventDeclaration eventDeclaration, IModifiers modifiers,
IList<IArgument> arguments, IList<IParameter> parameters, IConstructLanguage language)
{
IEventInvocation eventInvocation = language.New<IEventInvocation>();
eventInvocation.DelegateInvocation =
language.DelegateInvocation(
language.VariableAccess(eventDeclaration.Identifier),
language.Arguments(arguments));
IMethodDeclaration method = language.Method(
language.None<IDocComment>(),
language.None<IAttributes>(),
modifiers,
language.TypeName(eventDeclaration.VoidTypeAtThisLocation()),
language.None<IMethodTypeParameters>(),
language.Parameters(parameters),
language.Block(
language.ExpressionStatement(eventInvocation)));
NamingPolicy methodsNamingPolicy = method.PrimaryNamingPolicy(eventDeclaration.FileModel.UserSettings);
string methodName = methodsNamingPolicy.ChangeNameAccordingToPolicy("Raise" + eventDeclaration.Identifier.Name + "Event",
eventDeclaration.SolutionModel);
method.Identifier = language.Identifier(methodName);
return method;
}