private static Task <Document> DuplicateStatementAsync(
Document document,
StatementSyntax statement,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementContainer container;
if (StatementContainer.TryCreate(statement, out container))
{
int index = container.Statements.IndexOf(statement);
if (index == 0 &&
container.IsBlock &&
container.Block.OpenBraceToken.GetFullSpanEndLine() == statement.GetFullSpanStartLine())
{
statement = statement.PrependToLeadingTrivia(CSharpFactory.NewLine());
}
SyntaxList <StatementSyntax> newStatements = container.Statements.Insert(index + 1, statement);
SyntaxNode newNode = container.NodeWithStatements(newStatements);
return(document.ReplaceNodeAsync(container.Node, newNode, cancellationToken));
}
else
{
SyntaxList <StatementSyntax> statements = SyntaxFactory.List(new StatementSyntax[] { statement, statement });
BlockSyntax block = SyntaxFactory.Block(statements);
return(document.ReplaceNodeAsync(statement, block, cancellationToken));
}
}
private static Task <Document> DuplicateStatementAsync(
Document document,
StatementSyntax statement,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementsInfo statementsInfo = SyntaxInfo.StatementsInfo(statement);
if (statementsInfo.Success)
{
int index = statementsInfo.Statements.IndexOf(statement);
if (index == 0 &&
statementsInfo.IsInBlock &&
statementsInfo.Block.OpenBraceToken.GetFullSpanEndLine() == statement.GetFullSpanStartLine())
{
statement = statement.PrependToLeadingTrivia(CSharpFactory.NewLine());
}
SyntaxList <StatementSyntax> newStatements = statementsInfo.Statements.Insert(index + 1, statement.WithNavigationAnnotation());
StatementsInfo newInfo = statementsInfo.WithStatements(newStatements);
return(document.ReplaceNodeAsync(statementsInfo.Node, newInfo.Node, cancellationToken));
}
else
{
SyntaxList <StatementSyntax> statements = SyntaxFactory.List(new StatementSyntax[] { statement, statement.WithNavigationAnnotation() });
BlockSyntax block = SyntaxFactory.Block(statements);
return(document.ReplaceNodeAsync(statement, block, cancellationToken));
}
}
private static async Task <Document> DuplicateStatementAsync(
Document document,
StatementSyntax statement,
CancellationToken cancellationToken = default(CancellationToken))
{
var block = (BlockSyntax)statement.Parent;
int index = block.Statements.IndexOf(statement);
if (index == 0 &&
block.OpenBraceToken.GetFullSpanEndLine() == statement.GetFullSpanStartLine())
{
statement = statement.WithLeadingTrivia(statement.GetLeadingTrivia().Insert(0, CSharpFactory.NewLineTrivia()));
}
BlockSyntax newBlock = block.WithStatements(block.Statements.Insert(index + 1, statement));
return(await document.ReplaceNodeAsync(block, newBlock, cancellationToken).ConfigureAwait(false));
}