public static EcmaValue ToBigInt(ulong value)
{
if (value <= Int64.MaxValue)
{
return(ToBigInt((long)value));
}
BigIntBinder binder = new BigIntBinder(value);
return(binder.ToValue());
}
public static EcmaValue ToBigInt(BigInteger value)
{
if (value >= int64min && value <= int64max)
{
return(ToBigInt((long)value));
}
BigIntBinder binder = new BigIntBinder(value);
return(binder.ToValue());
}
public static EcmaValue ToBigInt(double value)
{
if (Double.IsNaN(value) || Double.IsInfinity(value) || Math.Truncate(value) != value)
{
throw new EcmaRangeErrorException(InternalString.Error.NumberNotConvertibleToBigInt, value);
}
if (value >= Int64.MinValue && value <= Int64.MaxValue)
{
return(ToBigInt((long)value));
}
BigIntBinder binder = new BigIntBinder(new BigInteger(value));
return(binder.ToValue());
}
public static EcmaValue Multiply64(EcmaValue x, EcmaValue y)
{
ThrowIfArgumentNotBigInt(x);
ThrowIfArgumentNotBigInt(y);
long a = x.ToInt64();
long b = y.ToInt64();
try {
return(ToBigInt(checked (a * b)));
} catch (OverflowException) {
BigIntBinder bigInt = new BigIntBinder(new BigInteger(a) * new BigInteger(b));
return(bigInt.ToValue());
}
}
public static EcmaValue Subtract64(EcmaValue x, EcmaValue y)
{
ThrowIfArgumentNotBigInt(x);
ThrowIfArgumentNotBigInt(y);
long u = x.ToInt64();
long v = y.ToInt64();
try {
return(ToBigInt(checked (u - v)));
} catch (OverflowException) {
BigIntBinder bigInt = new BigIntBinder(new BigInteger(u) - new BigInteger(v));
return(bigInt.ToValue());
}
}