本文整理汇总了C#中ExpressionSyntax.FirstAncestorOfType方法的典型用法代码示例。如果您正苦于以下问题：C# ExpressionSyntax.FirstAncestorOfType方法的具体用法？C# ExpressionSyntax.FirstAncestorOfType怎么用？C# ExpressionSyntax.FirstAncestorOfType使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ExpressionSyntax的用法示例。
在下文中一共展示了ExpressionSyntax.FirstAncestorOfType方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CreateRootWithUsingFromArgument
private static SyntaxNode CreateRootWithUsingFromArgument(SyntaxNode root, ExpressionSyntax childOfArgumentNode, string identifierName)
{
var arg = childOfArgumentNode.Parent as ArgumentSyntax;
var variableDeclaration = SyntaxFactory.VariableDeclaration(SyntaxFactory.IdentifierName(@"var"))
.WithVariables(SyntaxFactory.SingletonSeparatedList(SyntaxFactory.VariableDeclarator(SyntaxFactory.Identifier(identifierName))
.WithInitializer(SyntaxFactory.EqualsValueClause(SyntaxFactory.Token(SyntaxKind.EqualsToken), childOfArgumentNode))));
var args = arg.Parent as ArgumentListSyntax;
var newArgs = args.ReplaceNode(arg, arg.WithExpression(SyntaxFactory.IdentifierName(identifierName)));
StatementSyntax statement = childOfArgumentNode.FirstAncestorOfType<ExpressionStatementSyntax>();
if (statement != null)
{
var exprStatement = statement.ReplaceNode(args, newArgs);
var newUsingStatment = CreateUsingStatement(exprStatement, SyntaxFactory.Block(exprStatement))
.WithDeclaration(variableDeclaration);
return root.ReplaceNode(statement, newUsingStatment);
}
statement = (StatementSyntax)childOfArgumentNode.Ancestors().First(node => node is StatementSyntax);
var newStatement = statement.ReplaceNode(args, newArgs);
var statementsForUsing = new[] { newStatement }.Concat(GetChildStatementsAfter(statement));
var usingBlock = SyntaxFactory.Block(statementsForUsing);
var usingStatement = CreateUsingStatement(newStatement, usingBlock)
.WithDeclaration(variableDeclaration);
var statementsToReplace = new List<StatementSyntax> { statement };
statementsToReplace.AddRange(statementsForUsing.Skip(1));
return root.ReplaceNodes(statementsToReplace, (node, _) => node.Equals(statement) ? usingStatement : null);
}