public override async Task <Document> RefactorAsync(Document document, CancellationToken cancellationToken)
{
IStatementContainer container = StatementContainer.Create(IfStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(IfStatement);
ExpressionSyntax left = Left.WithoutTrivia();
ExpressionSyntax right = Right.WithoutTrivia();
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
right = AddCastExpressionIfNecessary(right, semanticModel, IfStatement.SpanStart, cancellationToken);
StatementSyntax newNode = CreateStatement(
CoalesceExpression(
left.Parenthesize().WithSimplifierAnnotation(),
right.Parenthesize().WithSimplifierAnnotation()));
newNode = newNode
.WithLeadingTrivia(IfStatement.GetLeadingTrivia())
.WithTrailingTrivia(statements[index + 1].GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements
.RemoveAt(index)
.ReplaceAt(index, newNode);
return(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}
public static Task <Document> RefactorAsync(
Document document,
IStatementContainer container,
ImmutableArray <IfStatementSyntax> ifStatements,
CancellationToken cancellationToken = default(CancellationToken))
{
IfStatementSyntax newIfStatement = IfStatement(
CreateCondition(ifStatements),
Block(CreateStatements(ifStatements)));
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatements[0]);
SyntaxList <StatementSyntax> newStatements = statements.Replace(
ifStatements[0],
newIfStatement
.WithLeadingTrivia(ifStatements[0].GetLeadingTrivia())
.WithTrailingTrivia(ifStatements[ifStatements.Length - 1].GetTrailingTrivia()));
for (int i = 1; i < ifStatements.Length; i++)
{
newStatements = newStatements.RemoveAt(index + 1);
}
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
private static Task <Document> RefactorAsync(
Document document,
IfStatementSyntax ifStatement,
ReturnStatementSyntax returnStatement,
IStatementContainer container,
CancellationToken cancellationToken)
{
SyntaxList <StatementSyntax> statements = container.Statements;
IfStatement ifElse = IfStatement.Create(ifStatement);
StatementSyntax statement = returnStatement;
if (ifElse.Nodes.Any(f => f.Statement?.IsKind(SyntaxKind.Block) == true))
{
statement = SyntaxFactory.Block(statement);
}
ElseClauseSyntax elseClause = SyntaxFactory.ElseClause(statement).WithFormatterAnnotation();
IfStatementSyntax lastIfStatement = ifElse.Nodes.Last();
IfStatementSyntax newIfStatement = ifStatement.ReplaceNode(
lastIfStatement,
lastIfStatement.WithElse(elseClause));
SyntaxList <StatementSyntax> newStatements = statements
.Replace(ifStatement, newIfStatement)
.RemoveAt(statements.IndexOf(returnStatement));
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public static Task <Document> RefactorAsync(
Document document,
ObjectCreationExpressionSyntax objectCreation,
SelectedStatementCollection selectedStatements,
CancellationToken cancellationToken = default(CancellationToken))
{
IStatementContainer container = selectedStatements.Container;
ExpressionStatementSyntax[] expressionStatements = selectedStatements
.Skip(1)
.Cast <ExpressionStatementSyntax>()
.ToArray();
StatementSyntax firstNode = selectedStatements.First;
SyntaxList <StatementSyntax> newStatements = container.Statements.Replace(
firstNode,
firstNode.ReplaceNode(
objectCreation,
objectCreation.WithInitializer(CreateInitializer(objectCreation, expressionStatements))));
int count = expressionStatements.Length;
int index = selectedStatements.FirstIndex + 1;
while (count > 0)
{
newStatements = newStatements.RemoveAt(index);
count--;
}
return(document.ReplaceNodeAsync(
container.Node,
container.NodeWithStatements(newStatements),
cancellationToken));
}
public static Task <Document> RefactorAsync(
Document document,
VariableDeclaratorSyntax declarator,
CancellationToken cancellationToken)
{
var declaration = (VariableDeclarationSyntax)declarator.Parent;
var localDeclaration = (LocalDeclarationStatementSyntax)declaration.Parent;
IStatementContainer container = StatementContainer.Create(localDeclaration);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(localDeclaration);
StatementSyntax nextStatement = statements[index + 1];
var expressionStatement = (ExpressionStatementSyntax)nextStatement;
var assignment = (AssignmentExpressionSyntax)expressionStatement.Expression;
ExpressionSyntax right = assignment.Right;
EqualsValueClauseSyntax initializer = declarator.Initializer;
ExpressionSyntax value = initializer?.Value;
VariableDeclaratorSyntax newDeclarator = (value != null)
? declarator.ReplaceNode(value, right)
: declarator.WithInitializer(EqualsValueClause(right));
LocalDeclarationStatementSyntax newLocalDeclaration = localDeclaration.ReplaceNode(declarator, newDeclarator);
SyntaxTriviaList trailingTrivia = nextStatement.GetTrailingTrivia();
IEnumerable <SyntaxTrivia> trivia = container
.Node
.DescendantTrivia(TextSpan.FromBounds(localDeclaration.Span.End, right.SpanStart));
if (!trivia.All(f => f.IsWhitespaceOrEndOfLineTrivia()))
{
newLocalDeclaration = newLocalDeclaration.WithTrailingTrivia(trivia.Concat(trailingTrivia));
}
else
{
newLocalDeclaration = newLocalDeclaration.WithTrailingTrivia(trailingTrivia);
}
SyntaxList <StatementSyntax> newStatements = statements
.Replace(localDeclaration, newLocalDeclaration)
.RemoveAt(index + 1);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
private static Task <Document> RefactorAsync(
Document document,
StatementSyntax statement,
IfStatementSyntax ifStatement,
int statementIndex,
IStatementContainer container,
ExpressionSyntax expression,
CancellationToken cancellationToken)
{
var expressionStatement = (ExpressionStatementSyntax)ifStatement.GetSingleStatementOrDefault();
var assignment = (AssignmentExpressionSyntax)expressionStatement.Expression;
ExpressionSyntax left = expression
.WithoutTrailingTrivia()
.Parenthesize(moveTrivia: true)
.WithSimplifierAnnotation();
ExpressionSyntax right = assignment.Right
.WithTrailingTrivia(expression.GetTrailingTrivia())
.Parenthesize(moveTrivia: true)
.WithSimplifierAnnotation();
BinaryExpressionSyntax newNode = CSharpFactory.CoalesceExpression(left, right);
StatementSyntax newStatement = statement.ReplaceNode(expression, newNode);
IEnumerable <SyntaxTrivia> trivia = container.Node.DescendantTrivia(TextSpan.FromBounds(statement.Span.End, ifStatement.Span.End));
if (!trivia.All(f => f.IsWhitespaceOrEndOfLineTrivia()))
{
newStatement = newStatement.WithTrailingTrivia(trivia);
newStatement = newStatement.AppendToTrailingTrivia(ifStatement.GetTrailingTrivia());
}
else
{
newStatement = newStatement.WithTrailingTrivia(ifStatement.GetTrailingTrivia());
}
SyntaxList <StatementSyntax> newStatements = container.Statements
.Remove(ifStatement)
.ReplaceAt(statementIndex, newStatement);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public override Task <Document> RefactorAsync(
Document document,
CancellationToken cancellationToken = default(CancellationToken))
{
IStatementContainer container = StatementContainer.Create(IfStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(IfStatement);
TStatement newStatement = CreateNewStatement();
SyntaxList <StatementSyntax> newStatements = statements
.RemoveAt(index)
.ReplaceAt(index - 1, newStatement);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
private static Task <Document> RefactorAsync(
Document document,
IStatementContainer statementContainer,
StatementSyntax statement,
InitializerExpressionSyntax initializer,
ExpressionSyntax expression,
CancellationToken cancellationToken)
{
ExpressionStatementSyntax[] expressions = Refactor(initializer, expression).ToArray();
expressions[expressions.Length - 1] = expressions[expressions.Length - 1]
.WithTrailingTrivia(statement.GetTrailingTrivia());
SyntaxList <StatementSyntax> statements = statementContainer.Statements;
int index = statements.IndexOf(statement);
StatementSyntax newStatement = statement.RemoveNode(initializer, SyntaxRemoveOptions.KeepNoTrivia);
SyntaxKind statementKind = statement.Kind();
if (statementKind == SyntaxKind.ExpressionStatement)
{
var expressionStatement = (ExpressionStatementSyntax)newStatement;
newStatement = expressionStatement
.WithExpression(expressionStatement.Expression.WithoutTrailingTrivia());
}
else if (statementKind == SyntaxKind.LocalDeclarationStatement)
{
var localDeclaration = (LocalDeclarationStatementSyntax)newStatement;
newStatement = localDeclaration
.WithDeclaration(localDeclaration.Declaration.WithoutTrailingTrivia());
}
SyntaxList <StatementSyntax> newStatements = statements.Replace(statement, newStatement);
SyntaxNode newNode = statementContainer
.NodeWithStatements(newStatements.InsertRange(index + 1, expressions))
.WithFormatterAnnotation();
return(document.ReplaceNodeAsync(statementContainer.Node, newNode, cancellationToken));
}
private static SyntaxNode AddNextIf(
IStatementContainer container,
IfStatementSyntax ifStatement,
IfStatementSyntax newIfStatement,
ExpressionSyntax expression)
{
IfStatementSyntax nextIfStatement = ifStatement.WithCondition(expression)
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatement);
SyntaxList <StatementSyntax> newStatements = statements
.Replace(ifStatement, newIfStatement)
.Insert(index + 1, nextIfStatement);
return(container.NodeWithStatements(newStatements));
}
public override Task <Document> RefactorAsync(Document document, CancellationToken cancellationToken = default(CancellationToken))
{
IStatementContainer container = StatementContainer.Create(IfStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(IfStatement);
ConditionalExpressionSyntax conditionalExpression = IfRefactoringHelper.CreateConditionalExpression(IfStatement.Condition, Expression1, Expression2);
StatementSyntax newStatement = CreateStatement(conditionalExpression)
.WithLeadingTrivia(IfStatement.GetLeadingTrivia())
.WithTrailingTrivia(statements[index + 1].GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements
.RemoveAt(index)
.ReplaceAt(index, newStatement);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public Task <Document> RefactorAsync(
Document document,
SelectedStatementCollection selectedStatements,
CancellationToken cancellationToken = default(CancellationToken))
{
IStatementContainer container = selectedStatements.Container;
StatementSyntax[] statements = selectedStatements.ToArray();
int index = selectedStatements.FirstIndex;
SyntaxTriviaList leadingTrivia = statements[0].GetLeadingTrivia();
SyntaxTriviaList trailingTrivia = statements[statements.Length - 1].GetTrailingTrivia();
statements[0] = statements[0].WithLeadingTrivia();
statements[statements.Length - 1] = statements[statements.Length - 1].WithTrailingTrivia();
SyntaxList <StatementSyntax> newStatements = container.Statements;
int cnt = statements.Length;
while (cnt > 0)
{
newStatements = newStatements.RemoveAt(index);
cnt--;
}
TStatement statement = CreateStatement(statements.ToImmutableArray());
statement = statement
.WithLeadingTrivia(leadingTrivia)
.WithTrailingTrivia(trailingTrivia)
.WithFormatterAnnotation();
newStatements = newStatements.Insert(index, statement);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
private static Task <Document> RefactorAsync(
Document document,
IStatementContainer container,
LocalDeclarationStatementSyntax[] localDeclarations,
CancellationToken cancellationToken = default(CancellationToken))
{
LocalDeclarationStatementSyntax localDeclaration = localDeclarations[0];
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(localDeclaration);
VariableDeclaratorSyntax[] variables = localDeclarations
.Skip(1)
.Select(f => f.Declaration)
.SelectMany(f => f.Variables)
.ToArray();
LocalDeclarationStatementSyntax newLocalDeclaration = localDeclaration
.AddDeclarationVariables(variables)
.WithTrailingTrivia(localDeclarations[localDeclarations.Length - 1].GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements.Replace(
localDeclaration,
newLocalDeclaration);
for (int i = 1; i < localDeclarations.Length; i++)
{
newStatements = newStatements.RemoveAt(index + 1);
}
return(document.ReplaceNodeAsync(
container.Node,
container.NodeWithStatements(newStatements),
cancellationToken));
}
private static Task<Document> RefactorAsync(
Document document,
ExpressionSyntax expression,
SyntaxList<StatementSyntax> statements,
IStatementContainer container,
int statementIndex,
int lastStatementIndex,
CancellationToken cancellationToken)
{
IEnumerable<StatementSyntax> blockStatements = statements
.Skip(statementIndex + 1)
.Take(lastStatementIndex - statementIndex);
IfStatementSyntax ifStatement = CreateNullCheck(expression, List(blockStatements));
if (lastStatementIndex < statements.Count - 1)
ifStatement = ifStatement.AppendToTrailingTrivia(NewLineTrivia());
IEnumerable<StatementSyntax> newStatements = statements.Take(statementIndex + 1)
.Concat(new IfStatementSyntax[] { ifStatement })
.Concat(statements.Skip(lastStatementIndex + 1));
return document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken);
}