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C# ExpressionSyntax.IsInStaticContext方法代码示例

本文整理汇总了C#中ExpressionSyntax.IsInStaticContext方法的典型用法代码示例。如果您正苦于以下问题:C# ExpressionSyntax.IsInStaticContext方法的具体用法?C# ExpressionSyntax.IsInStaticContext怎么用?C# ExpressionSyntax.IsInStaticContext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ExpressionSyntax的用法示例。


在下文中一共展示了ExpressionSyntax.IsInStaticContext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: GetSymbolsOffOfBoundExpression

        private static ImmutableArray<ISymbol> GetSymbolsOffOfBoundExpression(
            CSharpSyntaxContext context,
            ExpressionSyntax originalExpression,
            ExpressionSyntax expression,
            SymbolInfo leftHandBinding,
            INamespaceOrTypeSymbol container,
            CancellationToken cancellationToken)
        {
            var useBaseReferenceAccessibility = false;
            var excludeInstance = false;
            var excludeStatic = false;
            var symbol = leftHandBinding.GetBestOrAllSymbols().FirstOrDefault();

            if (symbol != null)
            {
                // If the thing on the left is a type, namespace or alias and the original
                // expression was parenthesized, we shouldn't show anything in IntelliSense.
                if (originalExpression.IsKind(SyntaxKind.ParenthesizedExpression) &&
                    symbol.MatchesKind(SymbolKind.NamedType,
                                       SymbolKind.Namespace,
                                       SymbolKind.Alias))
                {
                    return ImmutableArray<ISymbol>.Empty;
                }

                // If the thing on the left is a lambda expression, we shouldn't show anything.
                if (symbol.Kind == SymbolKind.Method &&
                    ((IMethodSymbol)symbol).MethodKind == MethodKind.AnonymousFunction)
                {
                    return ImmutableArray<ISymbol>.Empty;
                }

                // If the thing on the left is an event that can't be used as a field, we shouldn't show anything
                if (symbol.Kind == SymbolKind.Event &&
                    !context.SemanticModel.IsEventUsableAsField(originalExpression.SpanStart, (IEventSymbol)symbol))
                {
                    return ImmutableArray<ISymbol>.Empty;
                }

                // If the thing on the left is a this parameter (e.g. this or base) and we're in a static context,
                // we shouldn't show anything
                if (symbol.IsThisParameter() &&
                    expression.IsInStaticContext())
                {
                    return ImmutableArray<ISymbol>.Empty;
                }

                // What is the thing on the left?
                switch (symbol.Kind)
                {
                    case SymbolKind.NamedType:
                    case SymbolKind.Namespace:
                        excludeInstance = true;
                        container = (INamespaceOrTypeSymbol)symbol;
                        break;

                    case SymbolKind.Alias:
                        excludeInstance = true;
                        container = ((IAliasSymbol)symbol).Target;
                        break;

                    case SymbolKind.Parameter:
                        var parameter = (IParameterSymbol)symbol;

                        excludeStatic = true;

                        // case:
                        //    base.|
                        if (parameter.IsThis && !object.Equals(parameter.Type, container))
                        {
                            useBaseReferenceAccessibility = true;
                        }

                        break;

                    default:
                        excludeStatic = true;
                        break;
                }
            }
            else if (container != null)
            {
                excludeStatic = true;
            }
            else
            {
                return ImmutableArray<ISymbol>.Empty;
            }

            Debug.Assert(!excludeInstance || !excludeStatic);
            Debug.Assert(!excludeInstance || !useBaseReferenceAccessibility);

            // nameof(X.|
            // Show static and instance members.
            if (context.IsNameOfContext)
            {
                excludeInstance = false;
                excludeStatic = false;
            }

//.........这里部分代码省略.........
开发者ID:orthoxerox,项目名称:roslyn,代码行数:101,代码来源:CSharpRecommendationService.cs


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