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C# ConversionKind.IsImplicitConversion方法代码示例

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


在下文中一共展示了ConversionKind.IsImplicitConversion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: RewriteLiftedConversionInExpressionTree

        private BoundExpression RewriteLiftedConversionInExpressionTree(
            CSharpSyntaxNode syntax,
            BoundExpression rewrittenOperand,
            ConversionKind conversionKind,
            bool @checked,
            bool explicitCastInCode,
            TypeSymbol rewrittenType)
        {
            Debug.Assert((object)rewrittenType != null);
            TypeSymbol rewrittenOperandType = rewrittenOperand.Type;
            Debug.Assert(rewrittenType.IsNullableType() || rewrittenOperandType.IsNullableType());

            TypeSymbol typeFrom = rewrittenOperandType.StrippedType();
            TypeSymbol typeTo = rewrittenType.StrippedType();
            if (typeFrom != typeTo && (typeFrom.SpecialType == SpecialType.System_Decimal || typeTo.SpecialType == SpecialType.System_Decimal))
            {
                // take special care if the underlying conversion is a decimal conversion
                TypeSymbol typeFromUnderlying = typeFrom;
                TypeSymbol typeToUnderlying = typeTo;

                // They can't both be enums, since one of them is decimal.
                if (typeFrom.IsEnumType())
                {
                    typeFromUnderlying = typeFrom.GetEnumUnderlyingType();

                    // NOTE: Dev10 converts enum? to underlying?, rather than directly to underlying.
                    rewrittenOperandType = rewrittenOperandType.IsNullableType() ? ((NamedTypeSymbol)rewrittenOperandType.OriginalDefinition).Construct(typeFromUnderlying) : typeFromUnderlying;
                    rewrittenOperand = BoundConversion.SynthesizedNonUserDefined(syntax, rewrittenOperand, ConversionKind.ImplicitEnumeration, rewrittenOperandType);
                }
                else if (typeTo.IsEnumType())
                {
                    typeToUnderlying = typeTo.GetEnumUnderlyingType();
                }

                var method = (MethodSymbol)this.compilation.Assembly.GetSpecialTypeMember(DecimalConversionMethod(typeFromUnderlying, typeToUnderlying));
                conversionKind = conversionKind.IsImplicitConversion() ? ConversionKind.ImplicitUserDefined : ConversionKind.ExplicitUserDefined;
                var result = new BoundConversion(syntax, rewrittenOperand, new Conversion(conversionKind, method, false), @checked, explicitCastInCode, default(ConstantValue), rewrittenType);
                return result;
            }
            else
            {
                return new BoundConversion(syntax, rewrittenOperand, new Conversion(conversionKind), @checked, explicitCastInCode, default(ConstantValue), rewrittenType);
            }
        }
开发者ID:modulexcite,项目名称:pattern-matching-csharp,代码行数:44,代码来源:LocalRewriter_Conversion.cs


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