public static async Task <Document> RefactorAsync(
Document document,
ExpressionStatementSyntax statement,
ReturnStatementSyntax returnStatement,
CancellationToken cancellationToken = default(CancellationToken))
{
SyntaxNode root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var block = (BlockSyntax)statement.Parent;
SyntaxList <StatementSyntax> statements = block.Statements;
int index = statements.IndexOf(statement);
SyntaxList <StatementSyntax> newStatements = statements.RemoveAt(index);
var assignmentExpression = (AssignmentExpressionSyntax)statement.Expression;
ReturnStatementSyntax newReturnStatement = returnStatement
.WithExpression(assignmentExpression.Right)
.WithLeadingTrivia(assignmentExpression.GetLeadingTrivia())
.WithTrailingTrivia(returnStatement.GetTrailingTrivia())
.WithFormatterAnnotation();
newStatements = newStatements.Replace(newStatements[index], newReturnStatement);
root = root.ReplaceNode(block, block.WithStatements(newStatements));
return(document.WithSyntaxRoot(root));
}
public static async Task <Document> RefactorAsync(
Document document,
StatementContainer container,
IfStatementSyntax ifStatement,
ReturnStatementSyntax returnStatement,
CancellationToken cancellationToken)
{
ExpressionSyntax expression = ReplaceIfWithStatementRefactoring.GetExpression(
ifStatement.Condition,
ReplaceIfWithStatementRefactoring.GetReturnExpression(ifStatement),
returnStatement.Expression);
ReturnStatementSyntax newReturnStatement = ReturnStatement(expression);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatement);
newReturnStatement = newReturnStatement
.WithLeadingTrivia(ifStatement.GetLeadingTrivia())
.WithTrailingTrivia(returnStatement.GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements
.RemoveAt(index)
.ReplaceAt(index, newReturnStatement);
return(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}
private static async Task <Document> MergeLocalDeclarationWithReturnStatementAsync(
Document document,
LocalDeclarationStatementSyntax localDeclaration,
ReturnStatementSyntax returnStatement,
BlockSyntax block,
CancellationToken cancellationToken)
{
SyntaxNode oldRoot = await document.GetSyntaxRootAsync(cancellationToken);
ReturnStatementSyntax newReturnStatement = returnStatement
.WithExpression(localDeclaration.Declaration.Variables[0].Initializer.Value.WithoutTrivia())
.WithLeadingTrivia(localDeclaration.GetLeadingTrivia())
.WithTrailingTrivia(returnStatement.GetTrailingTrivia())
.WithAdditionalAnnotations(Formatter.Annotation);
int index = block.Statements.IndexOf(localDeclaration);
SyntaxList <StatementSyntax> newStatements = block.Statements
.RemoveAt(index)
.RemoveAt(index)
.Insert(index, newReturnStatement);
BlockSyntax newBlock = block.WithStatements(newStatements);
SyntaxNode newRoot = oldRoot.ReplaceNode(block, newBlock);
return(document.WithSyntaxRoot(newRoot));
}
private static async Task <Document> RefactorAsync(
Document document,
StatementContainer container,
IfStatementSyntax ifStatement,
ReturnStatementSyntax returnStatement,
ExpressionSyntax whenTrue,
ExpressionSyntax whenFalse,
CancellationToken cancellationToken = default(CancellationToken))
{
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatement);
ConditionalExpressionSyntax conditionalExpression = ReplaceIfWithStatementRefactoring.CreateConditionalExpression(ifStatement.Condition, whenTrue, whenFalse);
ReturnStatementSyntax newReturnStatement = ReturnStatement(conditionalExpression)
.WithLeadingTrivia(ifStatement.GetLeadingTrivia())
.WithTrailingTrivia(returnStatement.GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements
.Remove(returnStatement)
.ReplaceAt(index, newReturnStatement);
return(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}