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C# ISyntaxFactsService.GetExpressionOfInvocationExpression方法代码示例

本文整理汇总了C#中ISyntaxFactsService.GetExpressionOfInvocationExpression方法的典型用法代码示例。如果您正苦于以下问题:C# ISyntaxFactsService.GetExpressionOfInvocationExpression方法的具体用法?C# ISyntaxFactsService.GetExpressionOfInvocationExpression怎么用?C# ISyntaxFactsService.GetExpressionOfInvocationExpression使用的例子?那么恭喜您, 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ISyntaxFactsService的用法示例。


在下文中一共展示了ISyntaxFactsService.GetExpressionOfInvocationExpression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: RemoveAwaitFromCallerIfPresent

        private void RemoveAwaitFromCallerIfPresent(
            SyntaxEditor editor, ISyntaxFactsService syntaxFacts, 
            SyntaxNode root, ReferenceLocation referenceLocation,
            CancellationToken cancellationToken)
        {
            if (referenceLocation.IsImplicit)
            {
                return;
            }

            var location = referenceLocation.Location;
            var token = location.FindToken(cancellationToken);

            var nameNode = token.Parent;
            if (nameNode == null)
            {
                return;
            }

            // Look for the following forms:
            //  await M(...)
            //  await <expr>.M(...)
            //  await M(...).ConfigureAwait(...)
            //  await <expr>.M(...).ConfigureAwait(...)

            var expressionNode = nameNode;
            if (syntaxFacts.IsNameOfMemberAccessExpression(nameNode))
            {
                expressionNode = nameNode.Parent;
            }

            if (!syntaxFacts.IsExpressionOfInvocationExpression(expressionNode))
            {
                return;
            }

            // We now either have M(...) or <expr>.M(...)

            var invocationExpression = expressionNode.Parent;
            Debug.Assert(syntaxFacts.IsInvocationExpression(invocationExpression));

            if (syntaxFacts.IsExpressionOfAwaitExpression(invocationExpression))
            {
                // Handle the case where we're directly awaited.  
                var awaitExpression = invocationExpression.Parent;
                editor.ReplaceNode(awaitExpression, (currentAwaitExpression, generator) =>
                    syntaxFacts.GetExpressionOfAwaitExpression(currentAwaitExpression)
                               .WithTriviaFrom(currentAwaitExpression));
            }
            else if (syntaxFacts.IsExpressionOfMemberAccessExpression(invocationExpression))
            {
                // Check for the .ConfigureAwait case.
                var parentMemberAccessExpression = invocationExpression.Parent;
                var parentMemberAccessExpressionNameNode = syntaxFacts.GetNameOfMemberAccessExpression(
                    parentMemberAccessExpression);

                var parentMemberAccessExpressionName = syntaxFacts.GetIdentifierOfSimpleName(parentMemberAccessExpressionNameNode).ValueText;
                if (parentMemberAccessExpressionName == nameof(Task.ConfigureAwait))
                {
                    var parentExpression = parentMemberAccessExpression.Parent;
                    if (syntaxFacts.IsExpressionOfAwaitExpression(parentExpression))
                    {
                        var awaitExpression = parentExpression.Parent;
                        editor.ReplaceNode(awaitExpression, (currentAwaitExpression, generator) =>
                        {
                            var currentConfigureAwaitInvocation = syntaxFacts.GetExpressionOfAwaitExpression(currentAwaitExpression);
                            var currentMemberAccess = syntaxFacts.GetExpressionOfInvocationExpression(currentConfigureAwaitInvocation);
                            var currentInvocationExpression = syntaxFacts.GetExpressionOfMemberAccessExpression(currentMemberAccess);
                            return currentInvocationExpression.WithTriviaFrom(currentAwaitExpression);
                        });
                    }
                }
            }
        }
开发者ID:jkotas,项目名称:roslyn,代码行数:74,代码来源:AbstractMakeMethodSynchronousCodeFixProvider.cs


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