private async Task <Document> ImplementVirtualEventPropertyAsync(Document document, EventDeclarationSyntax declaration, CancellationToken c)
{
// Need the left (IdentifierNameSyntax) of the Accessor Statement for the AssignmentExpressionSyntax
var accessor = declaration.AccessorList.Accessors.First();
var statements = accessor.Body.Statements.OfType <ExpressionStatementSyntax>();
// Need to fine where the right side of an Add statement is "value":
var eventFieldName = statements.Where(s => (s.Expression as AssignmentExpressionSyntax)?.OperatorToken.Kind() == SyntaxKind.PlusEqualsToken)
.Where(s => ((s.Expression as AssignmentExpressionSyntax)?.Right as IdentifierNameSyntax)?.Identifier.ValueText == "value")
.Select(s => ((s.Expression as AssignmentExpressionSyntax)?.Left as IdentifierNameSyntax)?.Identifier.ValueText).First();
var raiseMethod = CreateRaiseMethod(declaration.Identifier.ValueText, eventFieldName, (declaration.Type as GenericNameSyntax));
var root = await document.GetSyntaxRootAsync(c);
var newRoot = root.InsertNodesAfter(declaration, new SyntaxNode[] { raiseMethod });
// Note that we need to find the node again
declaration = newRoot.FindToken(declaration.Span.Start).Parent.AncestorsAndSelf()
.OfType <EventDeclarationSyntax>().First();
var modifiers = declaration.Modifiers;
var virtualToken = modifiers.Single(m => m.Kind() == SyntaxKind.VirtualKeyword);
var newDeclaration = declaration.ReplaceToken(virtualToken, Token(SyntaxKind.None));
newRoot = newRoot.ReplaceNode(declaration, newDeclaration
.WithTrailingTrivia(TriviaList(CarriageReturnLineFeed, CarriageReturnLineFeed)));
return(document.WithSyntaxRoot(newRoot));
}
private async Task<Document> ImplementVirtualEventPropertyAsync(Document document, EventDeclarationSyntax declaration, CancellationToken c)
{
// Need the left (IdentifierNameSyntax) of the Accessor Statement for the AssignmentExpressionSyntax
var accessor = declaration.AccessorList.Accessors.First();
var statements = accessor.Body.Statements.OfType<ExpressionStatementSyntax>();
// Need to fine where the right side of an Add statement is "value":
var eventFieldName = statements.Where(s => (s.Expression as AssignmentExpressionSyntax)?.OperatorToken.Kind() == SyntaxKind.PlusEqualsToken)
.Where(s => ((s.Expression as AssignmentExpressionSyntax)?.Right as IdentifierNameSyntax)?.Identifier.ValueText == "value")
.Select(s => ((s.Expression as AssignmentExpressionSyntax)?.Left as IdentifierNameSyntax)?.Identifier.ValueText).First();
var raiseMethod = CreateRaiseMethod(declaration.Identifier.ValueText, eventFieldName, (declaration.Type as GenericNameSyntax));
var root = await document.GetSyntaxRootAsync(c);
var newRoot = root.InsertNodesAfter(declaration, new SyntaxNode[] { raiseMethod });
// Note that we need to find the node again
declaration = newRoot.FindToken(declaration.Span.Start).Parent.AncestorsAndSelf()
.OfType<EventDeclarationSyntax>().First();
var modifiers = declaration.Modifiers;
var virtualToken = modifiers.Single(m => m.Kind() == SyntaxKind.VirtualKeyword);
var newDeclaration = declaration.ReplaceToken(virtualToken, Token(SyntaxKind.None));
newRoot = newRoot.ReplaceNode(declaration, newDeclaration
.WithTrailingTrivia(TriviaList(CarriageReturnLineFeed, CarriageReturnLineFeed)));
return document.WithSyntaxRoot(newRoot);
}