private static Task <Document> RefactorAsync(
Document document,
ExpressionSyntax expression,
SyntaxList <StatementSyntax> statements,
StatementContainer 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(NewLine());
}
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));
}
public override async Task <Document> RefactorAsync(Document document, CancellationToken cancellationToken = default(CancellationToken))
{
StatementContainer container = StatementContainer.Create(IfStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(IfStatement);
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
ExpressionSyntax expression = IfRefactoringHelper.GetBooleanExpression(
IfStatement.Condition,
Expression1,
Expression2,
semanticModel,
cancellationToken);
StatementSyntax newStatement = CreateStatement(expression)
.WithLeadingTrivia(IfStatement.GetLeadingTrivia())
.WithTrailingTrivia(statements[index + 1].GetTrailingTrivia())
.WithFormatterAnnotation();
SyntaxList <StatementSyntax> newStatements = statements
.RemoveAt(index)
.ReplaceAt(index, newStatement);
return(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}
public static Task <Document> RefactorAsync(
Document document,
StatementContainer 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));
}
public static Task <Document> RefactorAsync(
Document document,
ObjectCreationExpressionSyntax objectCreation,
StatementContainerSelection selectedStatements,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementContainer container = selectedStatements.Container;
ExpressionStatementSyntax[] expressionStatements = selectedStatements
.Skip(1)
.Cast <ExpressionStatementSyntax>()
.ToArray();
StatementSyntax firstStatement = selectedStatements.First();
SyntaxList <StatementSyntax> newStatements = container.Statements.Replace(
firstStatement,
firstStatement.ReplaceNode(
objectCreation,
objectCreation.WithInitializer(CreateInitializer(objectCreation, expressionStatements))));
int count = expressionStatements.Length;
int index = selectedStatements.StartIndex + 1;
while (count > 0)
{
newStatements = newStatements.RemoveAt(index);
count--;
}
return(document.ReplaceNodeAsync(
container.Node,
container.NodeWithStatements(newStatements),
cancellationToken));
}
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> 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));
}
private static Task <Document> RefactorAsync(
Document document,
IfStatementSyntax ifStatement,
ReturnStatementSyntax returnStatement,
StatementContainer 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));
}
private static Task <Document> RefactorAsync(
Document document,
StatementContainer statementContainer,
StatementSyntax statement,
InitializerExpressionSyntax initializer,
ExpressionSyntax initializedExpression,
CancellationToken cancellationToken)
{
ExpressionStatementSyntax[] expressions = CreateExpressionStatements(initializer, initializedExpression).ToArray();
expressions[expressions.Length - 1] = expressions[expressions.Length - 1]
.WithTrailingTrivia(statement.GetTrailingTrivia());
var objectCreationExpression = (ObjectCreationExpressionSyntax)initializer.Parent;
ObjectCreationExpressionSyntax newObjectCreationExpression = objectCreationExpression.WithInitializer(null);
if (newObjectCreationExpression.ArgumentList == null)
{
TypeSyntax type = newObjectCreationExpression.Type;
newObjectCreationExpression = newObjectCreationExpression
.WithArgumentList(ArgumentList().WithTrailingTrivia(type.GetTrailingTrivia()))
.WithType(type.WithoutTrailingTrivia());
}
SyntaxList <StatementSyntax> statements = statementContainer.Statements;
int index = statements.IndexOf(statement);
StatementSyntax newStatement = statement.ReplaceNode(objectCreationExpression, newObjectCreationExpression);
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));
}
public static Task <Document> RefactorAsync(
Document document,
VariableDeclaratorSyntax declarator,
CancellationToken cancellationToken)
{
var declaration = (VariableDeclarationSyntax)declarator.Parent;
var localDeclaration = (LocalDeclarationStatementSyntax)declaration.Parent;
StatementContainer 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 = localDeclaration.GetTrailingTrivia();
if (!trailingTrivia.IsEmptyOrWhitespace())
{
newLocalDeclaration = newLocalDeclaration.WithTrailingTrivia(trailingTrivia.Concat(nextStatement.GetTrailingTrivia()));
}
else
{
newLocalDeclaration = newLocalDeclaration.WithTrailingTrivia(nextStatement.GetTrailingTrivia());
}
SyntaxTriviaList leadingTrivia = nextStatement.GetLeadingTrivia();
if (!leadingTrivia.IsEmptyOrWhitespace())
{
newLocalDeclaration = newLocalDeclaration.WithLeadingTrivia(newLocalDeclaration.GetLeadingTrivia().Concat(leadingTrivia));
}
SyntaxList <StatementSyntax> newStatements = statements
.Replace(localDeclaration, newLocalDeclaration)
.RemoveAt(index + 1);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public override Task <Document> RefactorAsync(
Document document,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementContainer 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 async Task <Document> RefactorAsync(
Document document,
StatementContainer 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(await document.ReplaceNodeAsync(statementContainer.Node, newNode, cancellationToken).ConfigureAwait(false));
}
private SyntaxNode Rewrite(StatementContainer container, IfStatementSyntax ifStatement)
{
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatement);
ExpressionSyntax newCondition = CSharpUtility.LogicallyNegate(ifStatement.Condition, _semanticModel, _cancellationToken);
if (_recursive)
{
ifStatement = (IfStatementSyntax)VisitIfStatement(ifStatement);
}
var block = (BlockSyntax)ifStatement.Statement;
BlockSyntax newBlock = block.WithStatements(SingletonList(_jumpStatement));
if (!block
.Statements
.First()
.GetLeadingTrivia()
.Any(f => f.IsEndOfLineTrivia()))
{
newBlock = newBlock.WithCloseBraceToken(newBlock.CloseBraceToken.AppendToTrailingTrivia(NewLine()));
}
IfStatementSyntax newIfStatement = ifStatement
.WithCondition(newCondition)
.WithStatement(newBlock)
.WithFormatterAnnotation();
if (statements.Last().Kind().IsJumpStatementOrYieldBreakStatement() &&
block.Statements.Last().Kind().IsJumpStatementOrYieldBreakStatement())
{
statements = statements.RemoveAt(statements.Count - 1);
}
SyntaxList <StatementSyntax> newStatements = statements
.ReplaceAt(index, newIfStatement)
.InsertRange(index + 1, block.Statements.Select(f => f.WithFormatterAnnotation()));
return(container.NodeWithStatements(newStatements));
}
private static SyntaxNode AddNextIf(
StatementContainer 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 async Task <Document> RefactorAsync(
Document document,
SelectedStatementsInfo info,
CancellationToken cancellationToken = default(CancellationToken))
{
SyntaxNode root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
StatementContainer container = info.Container;
StatementSyntax[] statements = info.SelectedNodes().ToArray();
int index = info.FirstSelectedNodeIndex;
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);
root = root.ReplaceNode(container.Node, container.NodeWithStatements(newStatements));
return(document.WithSyntaxRoot(root));
}
private static Task <Document> RefactorAsync(
Document document,
StatementSyntax statement,
IfStatementSyntax ifStatement,
int statementIndex,
StatementContainer container,
ExpressionSyntax expression,
SemanticModel semanticModel,
CancellationToken cancellationToken)
{
var expressionStatement = (ExpressionStatementSyntax)ifStatement.GetSingleStatementOrDefault();
var assignment = (AssignmentExpressionSyntax)expressionStatement.Expression;
BinaryExpressionSyntax newNode = RefactoringHelper.CreateCoalesceExpression(
semanticModel.GetTypeSymbol(assignment.Left, cancellationToken),
expression.WithoutTrailingTrivia(),
assignment.Right.WithTrailingTrivia(expression.GetTrailingTrivia()),
statement.SpanStart,
semanticModel);
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))
{
StatementContainer 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));
}
private static async Task <Document> RefactorAsync(
Document document,
StatementSyntax statement,
IfStatementSyntax ifStatement,
int statementIndex,
StatementContainer container,
ExpressionSyntax expression,
CancellationToken cancellationToken)
{
var expressionStatement = (ExpressionStatementSyntax)GetSingleStatementOrDefault(ifStatement.Statement);
var assignment = (AssignmentExpressionSyntax)expressionStatement.Expression;
ExpressionSyntax right = assignment.Right;
BinaryExpressionSyntax newNode = CoalesceExpression(
expression.WithoutTrailingTrivia(),
right.WithTrailingTrivia(expression.GetTrailingTrivia()));
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(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}
private static Task <Document> RefactorAsync(
Document document,
LocalDeclarationStatementSyntax localDeclaration,
ConditionalExpressionSyntax conditionalExpression,
SemanticModel semanticModel,
CancellationToken cancellationToken = default(CancellationToken))
{
VariableDeclaratorSyntax variableDeclarator = localDeclaration.Declaration.Variables[0];
LocalDeclarationStatementSyntax newLocalDeclaration = localDeclaration.RemoveNode(variableDeclarator.Initializer, SyntaxRemoveOptions.KeepExteriorTrivia);
TypeSyntax type = newLocalDeclaration.Declaration.Type;
if (type.IsVar)
{
newLocalDeclaration = newLocalDeclaration.ReplaceNode(
type,
semanticModel.GetTypeSymbol(conditionalExpression)
.ToMinimalTypeSyntax(semanticModel, type.SpanStart)
.WithTriviaFrom(type));
}
IdentifierNameSyntax left = IdentifierName(variableDeclarator.Identifier.ValueText);
IfStatementSyntax ifStatement = IfElseStatement(
conditionalExpression.Condition.WalkDownParentheses().WithoutTrivia(),
SimpleAssignmentStatement(left, conditionalExpression.WhenTrue.WithoutTrivia()),
SimpleAssignmentStatement(left, conditionalExpression.WhenFalse.WithoutTrivia()));
StatementContainer container = StatementContainer.Create(localDeclaration);
SyntaxList <StatementSyntax> statements = container.Statements;
SyntaxList <StatementSyntax> newStatements = statements
.Replace(localDeclaration, newLocalDeclaration.WithFormatterAnnotation())
.Insert(statements.IndexOf(localDeclaration) + 1, ifStatement.WithFormatterAnnotation());
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public static async Task <Document> RefactorAsync(
Document document,
ObjectCreationExpressionSyntax objectCreation,
SelectedStatementsInfo info,
CancellationToken cancellationToken = default(CancellationToken))
{
SyntaxNode root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
StatementContainer container = info.Container;
ExpressionStatementSyntax[] expressionStatements = info
.SelectedNodes()
.Skip(1)
.Cast <ExpressionStatementSyntax>()
.ToArray();
StatementSyntax firstNode = info.FirstSelectedNode;
SyntaxList <StatementSyntax> newStatements = container.Statements.Replace(
firstNode,
firstNode.ReplaceNode(
objectCreation,
objectCreation.WithInitializer(CreateInitializer(objectCreation, expressionStatements))));
int count = expressionStatements.Length;
int index = info.FirstSelectedNodeIndex + 1;
while (count > 0)
{
newStatements = newStatements.RemoveAt(index);
count--;
}
SyntaxNode newRoot = root.ReplaceNode(
container.Node,
container.NodeWithStatements(newStatements));
return(document.WithSyntaxRoot(newRoot));
}
public static Task <Document> InlineLazyInitializationAsync(
Document document,
IfStatementSyntax ifStatement,
CancellationToken cancellationToken)
{
StatementContainer container = StatementContainer.Create(ifStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(ifStatement);
StatementSyntax expressionStatement = (ExpressionStatementSyntax)statements[index + 1];
MemberInvocationStatement invocation = MemberInvocationStatement.Create((ExpressionStatementSyntax)expressionStatement);
ExpressionSyntax expression = invocation.Expression;
SimpleAssignmentStatement assignment = SimpleAssignmentStatement.Create((ExpressionStatementSyntax)ifStatement.GetSingleStatementOrDefault());
BinaryExpressionSyntax coalesceExpression = CSharpFactory.CoalesceExpression(expression.WithoutTrivia(), ParenthesizedExpression(assignment.AssignmentExpression));
ParenthesizedExpressionSyntax newExpression = ParenthesizedExpression(coalesceExpression)
.WithTriviaFrom(expression);
StatementSyntax newExpressionStatement = expressionStatement.ReplaceNode(expression, newExpression);
IEnumerable <SyntaxTrivia> trivia = container.Node.DescendantTrivia(TextSpan.FromBounds(ifStatement.FullSpan.Start, expressionStatement.FullSpan.Start));
if (trivia.Any(f => !f.IsWhitespaceOrEndOfLineTrivia()))
{
newExpressionStatement = newExpressionStatement.PrependToLeadingTrivia(trivia);
}
SyntaxList <StatementSyntax> newStatements = statements
.Replace(expressionStatement, newExpressionStatement)
.RemoveAt(index);
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public static async Task <Document> RefactorAsync(
Document document,
LocalDeclarationStatementSyntax localDeclaration,
CancellationToken cancellationToken)
{
StatementContainer container = StatementContainer.Create(localDeclaration);
int index = container.Statements.IndexOf(localDeclaration);
StatementSyntax nextStatement = container.Statements[index + 1];
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
ExpressionSyntax value = GetExpressionToInline(localDeclaration, semanticModel, cancellationToken);
StatementSyntax newStatement = GetStatementWithInlinedExpression(nextStatement, value);
SyntaxTriviaList leadingTrivia = localDeclaration.GetLeadingTrivia();
IEnumerable <SyntaxTrivia> trivia = container
.Node
.DescendantTrivia(TextSpan.FromBounds(localDeclaration.SpanStart, nextStatement.Span.Start));
if (!trivia.All(f => f.IsWhitespaceOrEndOfLineTrivia()))
{
newStatement = newStatement.WithLeadingTrivia(leadingTrivia.Concat(trivia));
}
else
{
newStatement = newStatement.WithLeadingTrivia(leadingTrivia);
}
SyntaxList <StatementSyntax> newStatements = container.Statements
.Replace(nextStatement, newStatement)
.RemoveAt(index);
return(await document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}
public Task <Document> RefactorAsync(
Document document,
StatementContainerSelection selectedStatements,
CancellationToken cancellationToken = default(CancellationToken))
{
StatementContainer container = selectedStatements.Container;
StatementSyntax[] statements = selectedStatements.ToArray();
int index = selectedStatements.StartIndex;
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 async Task <Document> RefactorAsync(
Document document,
StatementContainer container,
LocalDeclarationStatementSyntax[] localDeclarations,
CancellationToken cancellationToken = default(CancellationToken))
{
SyntaxNode root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
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);
}
SyntaxNode newRoot = root.ReplaceNode(container.Node, container.NodeWithStatements(newStatements));
return(document.WithSyntaxRoot(newRoot));
}
private static Task <Document> RefactorAsync <TNode>(
Document document,
WhileStatementSyntax whileStatement,
ForStatementSyntax forStatement,
List <TNode> list,
CancellationToken cancellationToken) where TNode : StatementSyntax
{
forStatement = forStatement
.TrimLeadingTrivia()
.PrependToLeadingTrivia(list[0].GetLeadingTrivia());
StatementContainer container = StatementContainer.Create(whileStatement);
SyntaxList <StatementSyntax> statements = container.Statements;
int index = statements.IndexOf(list[0]);
IEnumerable <StatementSyntax> newStatements = statements.Take(index)
.Concat(new ForStatementSyntax[] { forStatement })
.Concat(statements.Skip(index + list.Count + 1));
return(document.ReplaceNodeAsync(container.Node, container.NodeWithStatements(newStatements), cancellationToken));
}
public static async Task <Document> RefactorAsync(
Document document,
ExpressionStatementSyntax expressionStatement,
CancellationToken cancellationToken)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
INamedTypeSymbol symbol = semanticModel.GetTypeByMetadataName(MetadataNames.System_Text_StringBuilder);
var invocationExpression = (InvocationExpressionSyntax)expressionStatement.Expression;
MemberInvocationExpression memberInvocation = MemberInvocationExpression.Create(invocationExpression);
ExpressionSyntax expression = GetFirstInvocationInMethodChain(memberInvocation, symbol, semanticModel, cancellationToken).Expression;
StatementContainer statementContainer = StatementContainer.Create(expressionStatement);
SyntaxList <StatementSyntax> statements = statementContainer.Statements;
int index = statements.IndexOf(expressionStatement);
string indentation = CSharpFormatter.GetIncreasedIndentation(expressionStatement, cancellationToken).ToString();
var sb = new StringBuilder(invocationExpression.ToString());
int j = index;
while (j < statements.Count - 1)
{
StatementSyntax statement = statements[j + 1];
if (!IsFixable(statement, expression, symbol, semanticModel, cancellationToken))
{
break;
}
sb.AppendLine();
sb.Append(indentation);
sb.Append(GetTextToAppend((ExpressionStatementSyntax)statement, symbol, semanticModel, cancellationToken));
j++;
}
StatementSyntax lastStatement = statements[j];
SyntaxList <StatementSyntax> newStatements = statements;
while (j > index)
{
newStatements = newStatements.RemoveAt(j);
j--;
}
ExpressionSyntax newInvocationExpression = SyntaxFactory.ParseExpression(sb.ToString());
SyntaxTriviaList trailingTrivia = statementContainer
.Node
.DescendantTrivia(TextSpan.FromBounds(invocationExpression.Span.End, lastStatement.Span.End))
.ToSyntaxTriviaList()
.EmptyIfWhitespace()
.AddRange(lastStatement.GetTrailingTrivia());
ExpressionStatementSyntax newExpressionStatement = expressionStatement
.WithExpression(newInvocationExpression)
.WithLeadingTrivia(expressionStatement.GetLeadingTrivia())
.WithTrailingTrivia(trailingTrivia)
.WithFormatterAndSimplifierAnnotations();
newStatements = newStatements.ReplaceAt(index, newExpressionStatement);
return(await document.ReplaceNodeAsync(statementContainer.Node, statementContainer.NodeWithStatements(newStatements), cancellationToken).ConfigureAwait(false));
}