private void CompleteReturnStatement(ReturnStatement returnStatement)
{
if (returnStatement.Expression != null)
{
return;
}
MethodDeclaration method = returnStatement.Ancestor(NodeKind.MethodDeclaration) as MethodDeclaration;
if (method != null && method.Type != null && method.Type.Kind == NodeKind.UnionType && ((UnionType)method.Type).HasNullType)
{
returnStatement.Expression = NodeHelper.CreateNode(NodeKind.NullKeyword);
}
}
public CSharpSyntaxNode Convert(ReturnStatement node)
{
if (node.Expression == null)
{
return(SyntaxFactory.ReturnStatement());
}
// return default(T); for generic return type
if (node.Expression.Kind == NodeKind.NullKeyword)
{
MethodDeclaration method = node.Ancestor(NodeKind.MethodDeclaration) as MethodDeclaration;
if (method != null && method.IsGenericType)
{
return(SyntaxFactory.ReturnStatement(SyntaxFactory.DefaultExpression(SyntaxFactory.IdentifierName(method.Type.Text))));
}
}
return(SyntaxFactory.ReturnStatement(node.Expression.ToCsNode <ExpressionSyntax>()));
}
