public override IDynamic Op_Equals(IDynamic other)
{
switch (other.TypeCode)
{
case LanguageTypeCode.String:
return(this.Op_Equals(other.ConvertToNumber()));
case LanguageTypeCode.Number:
var lnum = (LNumber)other;
return(Environment.CreateBoolean(!(double.IsNaN(BaseValue) || double.IsNaN(lnum.BaseValue)) && this.BaseValue == lnum.BaseValue));
case LanguageTypeCode.Object:
return(this.Op_Equals(other.ConvertToPrimitive(null)));
default:
return(Environment.False);
}
}
public virtual IDynamic Op_Addition(IDynamic other)
{
var lprim = this.ConvertToPrimitive(null);
var rprim = other.ConvertToPrimitive(null);
if (lprim.TypeCode == LanguageTypeCode.String || rprim.TypeCode == LanguageTypeCode.String)
{
var lstr = (string)lprim.ConvertToString().BaseValue;
var rstr = (string)rprim.ConvertToString().BaseValue;
return(Environment.CreateString(lstr + rstr));
}
else
{
var lnum = (double)lprim.ConvertToNumber().BaseValue;
var rnum = (double)rprim.ConvertToNumber().BaseValue;
return(Environment.CreateNumber(lnum + rnum));
}
}
private IDynamic RelationalComparison(bool leftFirst, IDynamic left, IDynamic right)
{
IDynamic px, py;
if (leftFirst)
{
px = left.ConvertToPrimitive("Number");
py = right.ConvertToPrimitive("Number");
}
else
{
py = right.ConvertToPrimitive("Number");
px = left.ConvertToPrimitive("Number");
}
if (px.TypeCode == LanguageTypeCode.String && py.TypeCode == LanguageTypeCode.String)
{
string sx = (string)px.ConvertToString().BaseValue, sy = (string)py.ConvertToString().BaseValue;
if (sx.StartsWith(sy))
{
return(Environment.False);
}
else if (sy.StartsWith(sx))
{
return(Environment.True);
}
else
{
return(Environment.CreateBoolean(sx.CompareTo(sy) < 0));
}
}
else
{
double nx = (double)px.ConvertToNumber().BaseValue, ny = (double)py.ConvertToNumber().BaseValue;
if (double.IsNaN(nx) || double.IsNaN(ny))
{
return(Environment.Undefined);
}
else if (nx != ny)
{
if (double.IsPositiveInfinity(nx))
{
return(Environment.False);
}
else if (double.IsPositiveInfinity(ny))
{
return(Environment.True);
}
else if (double.IsNegativeInfinity(ny))
{
return(Environment.False);
}
else if (double.IsNegativeInfinity(nx))
{
return(Environment.True);
}
else
{
return(Environment.CreateBoolean(nx < ny));
}
}
return(Environment.False);
}
}
private IDynamic RelationalComparison(bool leftFirst, IDynamic left, IDynamic right)
{
IDynamic px, py;
if (leftFirst)
{
px = left.ConvertToPrimitive("Number");
py = right.ConvertToPrimitive("Number");
}
else
{
py = right.ConvertToPrimitive("Number");
px = left.ConvertToPrimitive("Number");
}
if (px.TypeCode == LanguageTypeCode.String && py.TypeCode == LanguageTypeCode.String)
{
string sx = (string)px.ConvertToString().BaseValue, sy = (string)py.ConvertToString().BaseValue;
if (sx.StartsWith(sy))
{
return Environment.False;
}
else if (sy.StartsWith(sx))
{
return Environment.True;
}
else
{
return Environment.CreateBoolean(sx.CompareTo(sy) < 0);
}
}
else
{
double nx = (double)px.ConvertToNumber().BaseValue, ny = (double)py.ConvertToNumber().BaseValue;
if (double.IsNaN(nx) || double.IsNaN(ny))
{
return Environment.Undefined;
}
else if (nx != ny)
{
if (double.IsPositiveInfinity(nx))
{
return Environment.False;
}
else if (double.IsPositiveInfinity(ny))
{
return Environment.True;
}
else if (double.IsNegativeInfinity(ny))
{
return Environment.False;
}
else if (double.IsNegativeInfinity(nx))
{
return Environment.True;
}
else
{
return Environment.CreateBoolean(nx < ny);
}
}
return Environment.False;
}
}
public virtual IDynamic Op_Addition(IDynamic other)
{
var lprim = this.ConvertToPrimitive(null);
var rprim = other.ConvertToPrimitive(null);
if (lprim.TypeCode == LanguageTypeCode.String || rprim.TypeCode == LanguageTypeCode.String)
{
var lstr = (string)lprim.ConvertToString().BaseValue;
var rstr = (string)rprim.ConvertToString().BaseValue;
return Environment.CreateString(lstr + rstr);
}
else
{
var lnum = (double)lprim.ConvertToNumber().BaseValue;
var rnum = (double)rprim.ConvertToNumber().BaseValue;
return Environment.CreateNumber(lnum + rnum);
}
}
public override IDynamic Op_Equals(IDynamic other)
{
switch (other.TypeCode)
{
case LanguageTypeCode.String:
return this.Op_Equals(other.ConvertToNumber());
case LanguageTypeCode.Number:
var lnum = (LNumber)other;
return Environment.CreateBoolean(!(double.IsNaN(BaseValue) || double.IsNaN(lnum.BaseValue)) && this.BaseValue == lnum.BaseValue);
case LanguageTypeCode.Object:
return this.Op_Equals(other.ConvertToPrimitive(null));
default:
return Environment.False;
}
}
