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C# BoundExpression.HasExpressionType方法代码示例

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


在下文中一共展示了BoundExpression.HasExpressionType方法的2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: GetAnonymousTypeFieldType

        /// <summary>
        /// Returns the type to be used as a field type; generates errors in case the type is not
        /// supported for anonymous type fields.
        /// </summary>
        private TypeSymbol GetAnonymousTypeFieldType(BoundExpression expression, CSharpSyntaxNode errorSyntax, DiagnosticBag diagnostics, ref bool hasError)
        {
            object errorArg = null;
            TypeSymbol expressionType = expression.Type;

            if (!expression.HasAnyErrors)
            {
                if (expression.HasExpressionType())
                {
                    if (expressionType.SpecialType == SpecialType.System_Void)
                    {
                        errorArg = expressionType;
                        expressionType = CreateErrorType(SyntaxFacts.GetText(SyntaxKind.VoidKeyword));
                    }
                    else if (expressionType.IsUnsafe())
                    {
                        errorArg = expressionType;
                        // CONSIDER: we could use an explicit error type instead of the unsafe type.
                    }
                    else if (expressionType.IsRestrictedType())
                    {
                        errorArg = expressionType;
                    }
                }
                else
                {
                    if (expression.Kind == BoundKind.UnboundLambda)
                    {
                        errorArg = ((UnboundLambda)expression).MessageID.Localize();
                    }
                    else if (expression.Kind == BoundKind.MethodGroup)
                    {
                        errorArg = MessageID.IDS_MethodGroup.Localize();
                    }
                    else
                    {
                        Debug.Assert(expression.IsLiteralNull(), "How did we successfully bind an expression without a type?");
                        errorArg = MessageID.IDS_NULL.Localize();
                    }
                }
            }

            if ((object)expressionType == null)
            {
                expressionType = CreateErrorType("error");
            }

            if (errorArg != null)
            {
                hasError = true;
                Error(diagnostics, ErrorCode.ERR_AnonymousTypePropertyAssignedBadValue, errorSyntax, errorArg);
                // NOTE: ERR_QueryRangeVariableAssignedBadValue is being generated 
                //       by query binding code and never reach this point
            }

            return expressionType;
        }
开发者ID:GloryChou,项目名称:roslyn,代码行数:61,代码来源:Binder_AnonymousTypes.cs

示例2: GetAnonymousTypeFieldType

        /// <summary>
        /// Returns the type to be used as a field type; generates errors in case the type is not
        /// supported for anonymous type fields.
        /// </summary>
        private TypeSymbol GetAnonymousTypeFieldType(BoundExpression expression, CSharpSyntaxNode errorSyntax, DiagnosticBag diagnostics, ref bool hasError)
        {
            object errorArg = null;
            TypeSymbol expressionType = expression.Type;

            if (!expression.HasAnyErrors)
            {
                if (expression.HasExpressionType())
                {
                    if (expressionType.SpecialType == SpecialType.System_Void)
                    {
                        errorArg = expressionType;
                        expressionType = CreateErrorType(SyntaxFacts.GetText(SyntaxKind.VoidKeyword));
                    }
                    else if (expressionType.IsUnsafe())
                    {
                        errorArg = expressionType;
                        // CONSIDER: we could use an explicit error type instead of the unsafe type.
                    }
                    else if (expressionType.IsRestrictedType())
                    {
                        errorArg = expressionType;
                    }
                }
                else
                {
                    errorArg = expression.Display;
                }
            }

            if ((object)expressionType == null)
            {
                expressionType = CreateErrorType("error");
            }

            if (errorArg != null)
            {
                hasError = true;
                Error(diagnostics, ErrorCode.ERR_AnonymousTypePropertyAssignedBadValue, errorSyntax, errorArg);
                // NOTE: ERR_QueryRangeVariableAssignedBadValue is being generated 
                //       by query binding code and never reach this point
            }

            return expressionType;
        }
开发者ID:Rickinio,项目名称:roslyn,代码行数:49,代码来源:Binder_AnonymousTypes.cs


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