public static Task <Document> RefactorAsync(
Document document,
ForStatementSyntax forStatement,
CancellationToken cancellationToken)
{
ForStatementSyntax newForStatement = forStatement;
if (forStatement
.DescendantTrivia(TextSpan.FromBounds(forStatement.FirstSemicolonToken.Span.End, forStatement.SecondSemicolonToken.Span.Start))
.All(f => f.IsWhitespaceOrEndOfLineTrivia()))
{
newForStatement = forStatement.Update(
forStatement.ForKeyword,
forStatement.OpenParenToken,
forStatement.Declaration,
forStatement.Initializers,
forStatement.FirstSemicolonToken.WithTrailingTrivia(SyntaxFactory.Space),
default(ExpressionSyntax),
forStatement.SecondSemicolonToken.WithoutLeadingTrivia(),
forStatement.Incrementors,
forStatement.CloseParenToken,
forStatement.Statement);
}
else
{
newForStatement = forStatement.RemoveNode(forStatement.Condition, SyntaxRemoveOptions.KeepExteriorTrivia);
}
return(document.ReplaceNodeAsync(forStatement, newForStatement, cancellationToken));
}
protected override SyntaxNode VisitForStatement(ForStatementSyntax node)
{
if (!node.DescendentNodes().OfType <BlockSyntax>().Any())
{
node = node.Update(node.ForKeyword, node.OpenParenToken, node.DeclarationOpt,
node.Initializers, node.FirstSemicolonToken, node.ConditionOpt,
node.SecondSemicolonToken, node.Incrementors, node.CloseParenToken,
Syntax.Block(statements: node.Statement));
}
return(base.VisitForStatement(node));
}
protected override SyntaxNode VisitForStatement(ForStatementSyntax node)
{
if (!node.DescendentNodes().OfType<BlockSyntax>().Any())
{
node = node.Update (node.ForKeyword, node.OpenParenToken, node.DeclarationOpt,
node.Initializers, node.FirstSemicolonToken, node.ConditionOpt,
node.SecondSemicolonToken, node.Incrementors, node.CloseParenToken,
Syntax.Block (statements: node.Statement));
}
return base.VisitForStatement (node);
}
protected override SyntaxNode VisitForStatement(ForStatementSyntax node)
{
var inits = RewritePostfixUnarys(node.Initializers);
var condition = RewritePostfixUnarys(node.ConditionOpt);
var incrs = RewritePostfixUnarys(node.Incrementors);
node = node.Update(node.ForKeyword, node.OpenParenToken, node.DeclarationOpt,
inits, node.FirstSemicolonToken, condition,
node.SecondSemicolonToken, incrs, node.CloseParenToken,
GetLoopBlock(node.Statement));
this.loopLevel++;
var statement = base.VisitForStatement((ForStatementSyntax)node.WithAdditionalAnnotations(this.isLoop));
this.loopLevel--;
return(statement);
}
protected override SyntaxNode VisitForStatement(ForStatementSyntax node)
{
node = node.Update (node.ForKeyword, node.OpenParenToken, node.DeclarationOpt,
node.Initializers, node.FirstSemicolonToken, node.ConditionOpt,
node.SecondSemicolonToken, node.Incrementors, node.CloseParenToken,
GetLoopBlock (node.Statement));
this.loopLevel++;
var statement = base.VisitForStatement ((ForStatementSyntax)node.WithAdditionalAnnotations (this.isLoop));
this.loopLevel--;
return statement;
}
