QueryMath.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Dispatcher / QueryMath.cs / 1 / QueryMath.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Dispatcher
{ 
    using System.Collections;
    using System.Diagnostics; 
 
    internal enum MathOperator
    { 
        None,
        Plus,
        Minus,
        Div, 
        Multiply,
        Mod, 
        Negate 
    }
 
    internal class MathOpcode : Opcode
    {
        MathOperator mathOp;
 
        internal MathOpcode(OpcodeID id, MathOperator op)
            : base(id) 
        { 
            this.mathOp = op;
        } 

        internal override bool Equals(Opcode op)
        {
            if (base.Equals(op)) 
            {
                return (this.mathOp == ((MathOpcode) op).mathOp); 
            } 

            return false; 
        }

#if DEBUG_FILTER
        public override string ToString() 
        {
            return string.Format("{0} {1}", base.ToString(), this.mathOp.ToString()); 
        } 
#endif
    } 

    internal class PlusOpcode : MathOpcode
    {
        internal PlusOpcode() 
            : base(OpcodeID.Plus, MathOperator.Plus)
        { 
        } 

        internal override Opcode Eval(ProcessingContext context) 
        {
            StackFrame argX = context.TopArg;
            StackFrame argY = context.SecondArg;
            DiagnosticUtility.DebugAssert(argX.Count == argY.Count, ""); 

            Value[] values = context.Values; 
 
            for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
            { 
                DiagnosticUtility.DebugAssert(values[x].IsType(ValueDataType.Double), "");
                DiagnosticUtility.DebugAssert(values[y].IsType(ValueDataType.Double), "");
                values[y].Add(values[x].Double);
            } 

            context.PopFrame(); 
            return this.next; 
        }
    } 

    internal class MinusOpcode : MathOpcode
    {
        internal MinusOpcode() 
            : base(OpcodeID.Minus, MathOperator.Minus)
        { 
        } 

        internal override Opcode Eval(ProcessingContext context) 
        {
            StackFrame argX = context.TopArg;
            StackFrame argY = context.SecondArg;
            DiagnosticUtility.DebugAssert(argX.Count == argY.Count, ""); 

            Value[] values = context.Values; 
 
            for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
            { 
                DiagnosticUtility.DebugAssert(values[x].IsType(ValueDataType.Double), "");
                DiagnosticUtility.DebugAssert(values[y].IsType(ValueDataType.Double), "");
                values[y].Double = values[x].Double - values[y].Double;
            } 

            context.PopFrame(); 
            return this.next; 
        }
    } 

    internal class MultiplyOpcode : MathOpcode
    {
        internal MultiplyOpcode() 
            : base(OpcodeID.Multiply, MathOperator.Multiply)
        { 
        } 

        internal override Opcode Eval(ProcessingContext context) 
        {
            StackFrame argX = context.TopArg;
            StackFrame argY = context.SecondArg;
            DiagnosticUtility.DebugAssert(argX.Count == argY.Count, ""); 

            Value[] values = context.Values; 
 
            for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
            { 
                DiagnosticUtility.DebugAssert(values[x].IsType(ValueDataType.Double), "");
                DiagnosticUtility.DebugAssert(values[y].IsType(ValueDataType.Double), "");
                values[y].Multiply(values[x].Double);
            } 

            context.PopFrame(); 
            return this.next; 
        }
    } 

    internal class DivideOpcode : MathOpcode
    {
        internal DivideOpcode() 
            : base(OpcodeID.Divide, MathOperator.Div)
        { 
        } 

        internal override Opcode Eval(ProcessingContext context) 
        {
            StackFrame argX = context.TopArg;
            StackFrame argY = context.SecondArg;
            DiagnosticUtility.DebugAssert(argX.Count == argY.Count, ""); 
            Value[] values = context.Values;
 
            for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y) 
            {
                DiagnosticUtility.DebugAssert(values[x].IsType(ValueDataType.Double), ""); 
                DiagnosticUtility.DebugAssert(values[y].IsType(ValueDataType.Double), "");
                values[y].Double = values[x].Double / values[y].Double;
            }
 
            context.PopFrame();
            return this.next; 
        } 
    }
 
    internal class ModulusOpcode : MathOpcode
    {
        internal ModulusOpcode()
            : base(OpcodeID.Mod, MathOperator.Mod) 
        {
        } 
 
        internal override Opcode Eval(ProcessingContext context)
        { 
            StackFrame argX = context.TopArg;
            StackFrame argY = context.SecondArg;
            Value[] values = context.Values;
 
            DiagnosticUtility.DebugAssert(argX.Count == argY.Count, "");
            for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y) 
            { 
                DiagnosticUtility.DebugAssert(values[x].IsType(ValueDataType.Double), "");
                DiagnosticUtility.DebugAssert(values[y].IsType(ValueDataType.Double), ""); 
                values[y].Double = values[x].Double % values[y].Double;
            }

            context.PopFrame(); 
            return this.next;
        } 
    } 

    internal class NegateOpcode : MathOpcode 
    {
        internal NegateOpcode()
            : base(OpcodeID.Negate, MathOperator.Negate)
        { 
        }
 
        internal override Opcode Eval(ProcessingContext context) 
        {
            StackFrame frame = context.TopArg; 
            Value[] values = context.Values;

            for (int i = frame.basePtr; i <= frame.endPtr; ++i)
            { 
                values[i].Negate();
            } 
            return this.next; 
        }
    } 

}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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QueryMath.cs source code in C# .NET

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