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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Dispatcher
{
using System.Runtime;
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;
Fx.Assert(argX.Count == argY.Count, "");
Value[] values = context.Values;
for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
{
Fx.Assert(values[x].IsType(ValueDataType.Double), "");
Fx.Assert(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;
Fx.Assert(argX.Count == argY.Count, "");
Value[] values = context.Values;
for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
{
Fx.Assert(values[x].IsType(ValueDataType.Double), "");
Fx.Assert(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;
Fx.Assert(argX.Count == argY.Count, "");
Value[] values = context.Values;
for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
{
Fx.Assert(values[x].IsType(ValueDataType.Double), "");
Fx.Assert(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;
Fx.Assert(argX.Count == argY.Count, "");
Value[] values = context.Values;
for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
{
Fx.Assert(values[x].IsType(ValueDataType.Double), "");
Fx.Assert(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;
Fx.Assert(argX.Count == argY.Count, "");
for (int x = argX.basePtr, y = argY.basePtr; x <= argX.endPtr; ++x, ++y)
{
Fx.Assert(values[x].IsType(ValueDataType.Double), "");
Fx.Assert(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;
}
}
}
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