public bool Compare(EvaluationParameters parameters, DecodeExpressionType comparisonType, INode left, INode right)
{
var evalLeft = left.TryEvaluate(parameters);
var evalRight = right.TryEvaluate(parameters);
switch (comparisonType)
{
case DecodeExpressionType.GreaterThanOrEqualTo: {
var iLeft = ToInteger(evalLeft);
var iRight = ToInteger(evalRight);
return(iLeft >= iRight);
}
case DecodeExpressionType.LessThanOrEqualTo: {
var iLeft = ToInteger(evalLeft);
var iRight = ToInteger(evalRight);
return(iLeft <= iRight);
}
case DecodeExpressionType.Equal:
return(ExpressionsEqual(evalLeft, evalRight));
case DecodeExpressionType.NotEqual:
return(!ExpressionsEqual(evalLeft, evalRight));
default:
throw new NotSupportedException();
}
}
public Parameter(DecodeExpressionType parameterType, INode parameterIndex)
{
if (parameterIndex == null)
throw new ArgumentNullException("parameterIndex");
_ParameterType = parameterType;
_ParameterIndex = parameterIndex;
}
public Parameter(DecodeExpressionType parameterType, INode parameterIndex)
{
if (parameterIndex == null)
{
throw new ArgumentNullException("parameterIndex");
}
_ParameterType = parameterType;
_ParameterIndex = parameterIndex;
}
public object this[DecodeExpressionType type, int index] {
get {
Parameters.ParameterBase pb;
if (!_Parameters.TryGetValue(type, out pb))
{
return(FallbackValue);
}
return(pb[index]);
}
set {
Parameters.ParameterBase pb;
if (!_Parameters.TryGetValue(type, out pb))
{
throw new NotSupportedException();
}
pb[index] = value;
}
}
protected INode DecodeExpression(BinaryReader input, DecodeExpressionType exprType)
{
var t = (byte)exprType;
if (t < 0xD0)
{
return(new Nodes.StaticInteger(t - 1));
}
if (t < 0xE0)
{
return(new Nodes.TopLevelParameter(t - 1));
}
switch (exprType)
{
case DecodeExpressionType.Decode: {
var len = GetInteger(input);
return(Decode(input, len));
}
case DecodeExpressionType.Byte:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Byte)));
case DecodeExpressionType.Int16_MinusOne:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int16) - 1));
case DecodeExpressionType.Int16_1:
case DecodeExpressionType.Int16_2:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int16)));
case DecodeExpressionType.Int24_MinusOne:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24) - 1));
case DecodeExpressionType.Int24:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24)));
case DecodeExpressionType.Int24_Lsh8:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24) << 8));
case DecodeExpressionType.Int24_SafeZero: {
var v16 = input.ReadByte();
var v8 = input.ReadByte();
var v0 = input.ReadByte();
int v = 0;
if (v16 != byte.MaxValue)
{
v |= v16 << 16;
}
if (v8 != byte.MaxValue)
{
v |= v8 << 8;
}
if (v0 != byte.MaxValue)
{
v |= v0;
}
return(new Nodes.StaticInteger(v));
}
case DecodeExpressionType.Int32:
return(new Nodes.StaticInteger(GetInteger(input, IntegerType.Int32)));
case DecodeExpressionType.GreaterThanOrEqualTo:
case DecodeExpressionType.GreaterThan:
case DecodeExpressionType.LessThanOrEqualTo:
case DecodeExpressionType.LessThan:
case DecodeExpressionType.NotEqual:
case DecodeExpressionType.Equal: {
var left = DecodeExpression(input);
var right = DecodeExpression(input);
return(new Nodes.Comparison(exprType, left, right));
}
case DecodeExpressionType.IntegerParameter:
case DecodeExpressionType.PlayerParameter:
case DecodeExpressionType.StringParameter:
case DecodeExpressionType.ObjectParameter:
return(new Nodes.Parameter(exprType, DecodeExpression(input)));
default:
throw new NotSupportedException();
}
}
public Comparison(DecodeExpressionType comparisonType, INode left, INode right)
{
_ComparisonType = comparisonType;
_Left = left;
_Right = right;
}
protected INode DecodeExpression(BinaryReader input, DecodeExpressionType exprType)
{
var t = (byte)exprType;
if (t < 0xD0)
return new Nodes.StaticInteger(t - 1);
if (t < 0xE0)
return new Nodes.TopLevelParameter(t - 1);
switch (exprType) {
case DecodeExpressionType.Decode: {
var len = GetInteger(input);
return Decode(input, len);
}
case DecodeExpressionType.Byte:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Byte));
case DecodeExpressionType.Int16_MinusOne:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int16) - 1);
case DecodeExpressionType.Int16_1:
case DecodeExpressionType.Int16_2:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int16));
case DecodeExpressionType.Int24_MinusOne:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24) - 1);
case DecodeExpressionType.Int24:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24));
case DecodeExpressionType.Int24_Lsh8:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int24) << 8);
case DecodeExpressionType.Int24_SafeZero: {
var v16 = input.ReadByte();
var v8 = input.ReadByte();
var v0 = input.ReadByte();
int v = 0;
if (v16 != byte.MaxValue)
v |= v16 << 16;
if (v8 != byte.MaxValue)
v |= v8 << 8;
if (v0 != byte.MaxValue)
v |= v0;
return new Nodes.StaticInteger(v);
}
case DecodeExpressionType.Int32:
return new Nodes.StaticInteger(GetInteger(input, IntegerType.Int32));
case DecodeExpressionType.GreaterThanOrEqualTo:
case DecodeExpressionType.GreaterThan:
case DecodeExpressionType.LessThanOrEqualTo:
case DecodeExpressionType.LessThan:
case DecodeExpressionType.NotEqual:
case DecodeExpressionType.Equal: {
var left = DecodeExpression(input);
var right = DecodeExpression(input);
return new Nodes.Comparison(exprType, left, right);
}
case DecodeExpressionType.IntegerParameter:
case DecodeExpressionType.PlayerParameter:
case DecodeExpressionType.StringParameter:
case DecodeExpressionType.ObjectParameter:
return new Nodes.Parameter(exprType, DecodeExpression(input));
default:
throw new NotSupportedException();
}
}
public object this[DecodeExpressionType type, int index]
{
get {
Parameters.ParameterBase pb;
if (!_Parameters.TryGetValue(type, out pb))
return FallbackValue;
return pb[index];
}
set {
Parameters.ParameterBase pb;
if (!_Parameters.TryGetValue(type, out pb))
throw new NotSupportedException();
pb[index] = value;
}
}
public bool Compare(EvaluationParameters parameters, DecodeExpressionType comparisonType, INode left, INode right)
{
var evalLeft = left.TryEvaluate(parameters);
var evalRight = right.TryEvaluate(parameters);
switch (comparisonType) {
case DecodeExpressionType.GreaterThanOrEqualTo: {
var iLeft = ToInteger(evalLeft);
var iRight = ToInteger(evalRight);
return iLeft >= iRight;
}
case DecodeExpressionType.LessThanOrEqualTo: {
var iLeft = ToInteger(evalLeft);
var iRight = ToInteger(evalRight);
return iLeft <= iRight;
}
case DecodeExpressionType.Equal:
return ExpressionsEqual(evalLeft, evalRight);
case DecodeExpressionType.NotEqual:
return !ExpressionsEqual(evalLeft, evalRight);
default:
throw new NotSupportedException();
}
}
public Comparison(DecodeExpressionType comparisonType, INode left, INode right)
{
_ComparisonType = comparisonType;
_Left = left;
_Right = right;
}
