/// <summary>
/// Checks if the type is a specific userdata type, and returns it or throws.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="funcName">Name of the function.</param>
/// <param name="argNum">The argument number.</param>
/// <param name="flags">The flags.</param>
public T CheckUserDataType <T>(string funcName, int argNum = -1,
TypeValidationFlags flags = TypeValidationFlags.Default)
{
var v = this.CheckType(funcName, DataType.UserData, argNum, flags);
bool allowNil = ((int)(flags & TypeValidationFlags.AllowNil) != 0);
if (v.IsNil())
{
return(default);
/// <summary>
/// Checks the type of this value corresponds to the desired type. A property ScriptRuntimeException is thrown
/// if the value is not of the specified type or - considering the TypeValidationFlags - is not convertible
/// to the specified type.
/// </summary>
/// <param name="funcName">Name of the function requesting the value, for error message purposes.</param>
/// <param name="desiredType">The desired data type.</param>
/// <param name="argNum">The argument number, for error message purposes.</param>
/// <param name="flags">The TypeValidationFlags.</param>
/// <exception cref="ScriptRuntimeException">Thrown
/// if the value is not of the specified type or - considering the TypeValidationFlags - is not convertible
/// to the specified type.</exception>
public DynValue CheckType(string funcName, DataType desiredType, int argNum = -1,
TypeValidationFlags flags = TypeValidationFlags.Default)
{
if (this.Type == desiredType)
{
return(this);
}
bool allowNil = ((int)(flags & TypeValidationFlags.AllowNil) != 0);
if (allowNil && this.IsNil())
{
return(this);
}
bool autoConvert = ((int)(flags & TypeValidationFlags.AutoConvert) != 0);
if (autoConvert)
{
if (desiredType == DataType.Boolean)
{
return(NewBoolean(this.CastToBool()));
}
if (desiredType == DataType.Number)
{
var v = this.CastToNumber();
if (v.HasValue)
{
return(NewNumber(v.Value));
}
}
if (desiredType == DataType.String)
{
string v = this.CastToString();
if (v != null)
{
return(NewString(v));
}
}
}
if (this.IsVoid())
{
throw ScriptRuntimeException.BadArgumentNoValue(argNum, funcName, desiredType);
}
throw ScriptRuntimeException.BadArgument(argNum, funcName, desiredType, this.Type, allowNil);
}
/// <summary>
/// Checks if the type is a specific userdata type, and returns it or throws.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="funcName">Name of the function.</param>
/// <param name="argNum">The argument number.</param>
/// <param name="flags">The flags.</param>
/// <returns></returns>
public T CheckUserDataType <T>(string funcName, int argNum = -1, TypeValidationFlags flags = TypeValidationFlags.Default)
{
DynValue v = this.CheckType(funcName, DataType.UserData, argNum, flags);
bool allowNil = ((int)(flags & TypeValidationFlags.AllowNil) != 0);
if (v.IsNil())
{
return(default(T));
}
object o = v.UserData.Object;
if (o != null && o is T)
{
return((T)o);
}
throw ScriptRuntimeException.BadArgumentUserData(argNum, funcName, typeof(T), o, allowNil);
}
/// <summary>
/// Checks if the type is a specific userdata type, and returns it or throws.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="funcName">Name of the function.</param>
/// <param name="argNum">The argument number.</param>
/// <param name="flags">The flags.</param>
/// <returns></returns>
public T CheckUserDataType <T>(string funcName, int argNum = -1, TypeValidationFlags flags = TypeValidationFlags.Default)
{
DynValue v = this.CheckType(funcName, DataType.UserData, argNum, flags);
bool allowNil = ((int)(flags & TypeValidationFlags.AllowNil) != 0);
if (v.IsNil())
{
return(default(T));
}
T t;
if (v.UserData.TryGet <T>(out t))
{
return(t);
}
throw ScriptRuntimeException.BadArgumentUserData(argNum, funcName, typeof(T), t, allowNil);
}
public static IEnumerable <T> GetArrayUserData <T>(this Table table, string funcName,
TypeValidationFlags flags = TypeValidationFlags.AutoConvert)
{
return(table.GetArray().Select(x => x.CheckUserDataType <T>(funcName, flags: flags)));
}
public static IEnumerable <string> GetArrayString(this Table table, string funcName,
TypeValidationFlags flags = TypeValidationFlags.AutoConvert)
{
return(table.GetArrayTyped(DataType.String, funcName, flags).Select(x => x.String));
}
public static IEnumerable <DynValue> GetArrayTyped(this Table table, DataType type, string funcName,
TypeValidationFlags flags = TypeValidationFlags.AutoConvert)
{
return(table.GetArray().Select(x => x.CheckType(funcName, type, flags: flags)));
}
