private static string GetAccessorType(AccessorDeclarationSyntax accessorDeclaration)
{
string accessorType;
if (accessorDeclaration.IsKind(SyntaxKind.AddAccessorDeclaration) ||
accessorDeclaration.IsKind(SyntaxKind.RemoveAccessorDeclaration))
{
accessorType = "event";
}
else
{
var accessorList = accessorDeclaration.Parent;
if (accessorList == null)
{
return null;
}
var indexerOrProperty = accessorList.Parent;
if (indexerOrProperty is IndexerDeclarationSyntax)
{
accessorType = "indexer set";
}
else if (indexerOrProperty is PropertyDeclarationSyntax)
{
accessorType = "property set";
}
else
{
return null;
}
}
return accessorType;
}
public override SyntaxNode VisitAccessorDeclaration(AccessorDeclarationSyntax node)
{
var propName = node.FirstAncestorOrSelf<PropertyDeclarationSyntax>().Identifier.Text;
var fieldName = "_" + propName;
BlockSyntax body;
if (node.IsKind(SyntaxKind.GetAccessorDeclaration))
{
body = SyntaxFactory.Block(SyntaxFactory.ReturnStatement(SyntaxFactory.IdentifierName(fieldName)).NormalizeWhitespace());
}
else
{
var setField = SyntaxFactory.ExpressionStatement(
SyntaxFactory.AssignmentExpression(
SyntaxKind.SimpleAssignmentExpression, SyntaxFactory.IdentifierName(fieldName), SyntaxFactory.IdentifierName(@"value")));
var raiseEvent = SyntaxFactory.ExpressionStatement(
SyntaxFactory.InvocationExpression(
SyntaxFactory.IdentifierName("OnPropertyChanged"),
SyntaxFactory.ArgumentList(
SyntaxFactory.SingletonSeparatedList(
SyntaxFactory.Argument(
SyntaxFactory.LiteralExpression(
SyntaxKind.StringLiteralExpression,
SyntaxFactory.Literal(propName)))))));
body = SyntaxFactory.Block(SyntaxFactory.SeparatedList<StatementSyntax>(new StatementSyntax[] { setField, raiseEvent }));
}
var newDecl = SyntaxFactory.AccessorDeclaration(node.Kind(), body);
return newDecl;
}