public string ToString(EcmaState state)
{
switch (this.type)
{
case EcmaValueType.Undefined:
return("undefined");
case EcmaValueType.Null:
return("null");
case EcmaValueType.Boolean:
return(this.ToBoolean(state) ? "true" : "false");
case EcmaValueType.Number:
return(EcmaGramma.ConvertStringToNumber(this.ToNumber(state)));
case EcmaValueType.String:
return((string)this.value);
case EcmaValueType.Object:
return((this.value as EcmaHeadObject).DefaultValue(state, "String").ToString(state));
default:
throw new EcmaRuntimeException("Cant convert " + this.type.ToString() + " to string");
}
}
public double ToNumber(EcmaState state)
{
switch (this.type)
{
case EcmaValueType.Undefined:
return(Double.NaN);
case EcmaValueType.Null:
return(0.0);
case EcmaValueType.Boolean:
return(this.ToBoolean(state) ? 1.0 : 0.0);
case EcmaValueType.Number:
return((double)this.value);
case EcmaValueType.String:
return(EcmaGramma.ConvertStringToNumber(this.ToString(state)));
case EcmaValueType.Object:
return((this.value as EcmaHeadObject).DefaultValue(state, "Number").ToNumber(state));
}
throw new EcmaRuntimeException("Cant convert " + this.type + " to Number");
}