public static async Task <Document> RefactorAsync(
Document document,
ReturnStatementSyntax returnStatement,
ITypeSymbol typeSymbol,
CancellationToken cancellationToken = default(CancellationToken))
{
ExpressionSyntax expression = CSharpFactory.DefaultValue(typeSymbol);
ReturnStatementSyntax newReturnStatement = returnStatement.WithExpression(expression);
return(await document.ReplaceNodeAsync(returnStatement, newReturnStatement, cancellationToken).ConfigureAwait(false));
}
private static ParameterSyntax GetNewParameter(
ParameterSyntax parameter,
ITypeSymbol typeSymbol)
{
ExpressionSyntax value = CSharpFactory.DefaultValue(
typeSymbol,
parameter.Type.WithoutTrivia());
EqualsValueClauseSyntax @default = EqualsValueClause(value);
if (parameter.Default == null || parameter.IsMissing)
{
return(parameter
.WithIdentifier(parameter.Identifier.WithoutTrailingTrivia())
.WithDefault(@default.WithTrailingTrivia(parameter.Identifier.TrailingTrivia)));
}
else
{
return(parameter
.WithDefault(@default.WithTriviaFrom(parameter.Default.EqualsToken)));
}
}