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C# BinaryOperatorKind.IsUserDefined方法代码示例

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


在下文中一共展示了BinaryOperatorKind.IsUserDefined方法的3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: MakeBinaryOperator

        private BoundExpression MakeBinaryOperator(
            BoundBinaryOperator oldNode,
            CSharpSyntaxNode syntax,
            BinaryOperatorKind operatorKind,
            BoundExpression loweredLeft,
            BoundExpression loweredRight,
            TypeSymbol type,
            MethodSymbol method,
            bool isPointerElementAccess = false,
            bool isCompoundAssignment = false,
            BoundUnaryOperator applyParentUnaryOperator = null)
        {
            Debug.Assert(oldNode == null || (oldNode.Syntax == syntax));

            if (_inExpressionLambda)
            {
                switch (operatorKind.Operator() | operatorKind.OperandTypes())
                {
                    case BinaryOperatorKind.ObjectAndStringConcatenation:
                    case BinaryOperatorKind.StringAndObjectConcatenation:
                    case BinaryOperatorKind.StringConcatenation:
                        return RewriteStringConcatenation(syntax, operatorKind, loweredLeft, loweredRight, type);
                    case BinaryOperatorKind.DelegateCombination:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__Combine);
                    case BinaryOperatorKind.DelegateRemoval:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__Remove);
                    case BinaryOperatorKind.DelegateEqual:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__op_Equality);
                    case BinaryOperatorKind.DelegateNotEqual:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__op_Inequality);
                }
            }
            else
            // try to lower the expression.
            {
                if (operatorKind.IsDynamic())
                {
                    Debug.Assert(!isPointerElementAccess);

                    if (operatorKind.IsLogical())
                    {
                        return MakeDynamicLogicalBinaryOperator(syntax, operatorKind, loweredLeft, loweredRight, method, type, isCompoundAssignment, applyParentUnaryOperator);
                    }
                    else
                    {
                        Debug.Assert((object)method == null);
                        return _dynamicFactory.MakeDynamicBinaryOperator(operatorKind, loweredLeft, loweredRight, isCompoundAssignment, type).ToExpression();
                    }
                }

                if (operatorKind.IsLifted())
                {
                    return RewriteLiftedBinaryOperator(syntax, operatorKind, loweredLeft, loweredRight, type, method);
                }

                if (operatorKind.IsUserDefined())
                {
                    return LowerUserDefinedBinaryOperator(syntax, operatorKind, loweredLeft, loweredRight, type, method);
                }

                switch (operatorKind.OperatorWithLogical() | operatorKind.OperandTypes())
                {
                    case BinaryOperatorKind.NullableNullEqual:
                    case BinaryOperatorKind.NullableNullNotEqual:
                        return RewriteNullableNullEquality(syntax, operatorKind, loweredLeft, loweredRight, type);

                    case BinaryOperatorKind.ObjectAndStringConcatenation:
                    case BinaryOperatorKind.StringAndObjectConcatenation:
                    case BinaryOperatorKind.StringConcatenation:
                        return RewriteStringConcatenation(syntax, operatorKind, loweredLeft, loweredRight, type);

                    case BinaryOperatorKind.StringEqual:
                        return RewriteStringEquality(oldNode, syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_String__op_Equality);

                    case BinaryOperatorKind.StringNotEqual:
                        return RewriteStringEquality(oldNode, syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_String__op_Inequality);

                    case BinaryOperatorKind.DelegateCombination:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__Combine);

                    case BinaryOperatorKind.DelegateRemoval:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__Remove);

                    case BinaryOperatorKind.DelegateEqual:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__op_Equality);

                    case BinaryOperatorKind.DelegateNotEqual:
                        return RewriteDelegateOperation(syntax, operatorKind, loweredLeft, loweredRight, type, SpecialMember.System_Delegate__op_Inequality);

                    case BinaryOperatorKind.LogicalBoolAnd:
                        if (loweredRight.ConstantValue == ConstantValue.True) return loweredLeft;
                        if (loweredLeft.ConstantValue == ConstantValue.True) return loweredRight;
                        if (loweredLeft.ConstantValue == ConstantValue.False) return loweredLeft;

                        if (loweredRight.Kind == BoundKind.Local || loweredRight.Kind == BoundKind.Parameter)
                        {
                            operatorKind &= ~BinaryOperatorKind.Logical;
                        }

                        goto default;
//.........这里部分代码省略.........
开发者ID:Rickinio,项目名称:roslyn,代码行数:101,代码来源:LocalRewriter_BinaryOperator.cs

示例2: RewriteLiftedBinaryOperator

        private BoundExpression RewriteLiftedBinaryOperator(CSharpSyntaxNode syntax, BinaryOperatorKind operatorKind, BoundExpression loweredLeft, BoundExpression loweredRight, TypeSymbol type, MethodSymbol method)
        {
            var conditionalLeft = loweredLeft as BoundLoweredConditionalAccess;

            // NOTE: we could in theory handle side-effecting loweredRight here too
            //       by including it as a part of whenNull, but there is a concern 
            //       that it can lead to code duplication
            var optimize = conditionalLeft != null &&
                !ReadIsSideeffecting(loweredRight) &&
                (conditionalLeft.WhenNullOpt == null || conditionalLeft.WhenNullOpt.IsDefaultValue());

            if (optimize)
            {
                loweredLeft = conditionalLeft.WhenNotNull;
            }

            var result = operatorKind.IsComparison() ?
                            operatorKind.IsUserDefined() ?
                                LowerLiftedUserDefinedComparisonOperator(syntax, operatorKind, loweredLeft, loweredRight, method) :
                                LowerLiftedBuiltInComparisonOperator(syntax, operatorKind, loweredLeft, loweredRight) :
                            LowerLiftedBinaryArithmeticOperator(syntax, operatorKind, loweredLeft, loweredRight, type, method);

            if (optimize)
            {
                BoundExpression whenNullOpt = null;

                // for all operators null-in means null-out
                // except for the Equal/NotEqual since null == null ==> true
                if (operatorKind.Operator() == BinaryOperatorKind.NotEqual ||
                    operatorKind.Operator() == BinaryOperatorKind.Equal)
                {
                    whenNullOpt = RewriteLiftedBinaryOperator(syntax, operatorKind, _factory.Default(loweredLeft.Type), loweredRight, type, method);
                }

                result = conditionalLeft.Update(
                    conditionalLeft.Receiver,
                    conditionalLeft.HasValueMethodOpt,
                    whenNotNull: result,
                    whenNullOpt: whenNullOpt,
                    id: conditionalLeft.Id,
                    type: result.Type
                );
            }

            return result;
        }
开发者ID:Rickinio,项目名称:roslyn,代码行数:46,代码来源:LocalRewriter_BinaryOperator.cs

示例3: BoundUserDefinedConditionalLogicalOperator

        public BoundUserDefinedConditionalLogicalOperator(
            CSharpSyntaxNode syntax,
            BinaryOperatorKind operatorKind,
            BoundExpression left,
            BoundExpression right,
            MethodSymbol logicalOperator,
            MethodSymbol trueOperator,
            MethodSymbol falseOperator,
            LookupResultKind resultKind,
            ImmutableArray<MethodSymbol> originalUserDefinedOperatorsOpt,
            TypeSymbol type,
            bool hasErrors = false)
            : this(
                syntax,
                operatorKind,
                left,
                right,
                logicalOperator,
                trueOperator,
                falseOperator,
                resultKind,
                type,
                hasErrors)
        {
            Debug.Assert(operatorKind.IsUserDefined() && operatorKind.IsLogical());

            this.OriginalUserDefinedOperatorsOpt = originalUserDefinedOperatorsOpt;
        }
开发者ID:RoryVL,项目名称:roslyn,代码行数:28,代码来源:Constructors.cs


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