/// <summary>
/// 将ExpressionDataType转换成.Net的数据类型
/// </summary>
/// <param name="pdt"></param>
/// <returns></returns>
public static Type ToRealType(this ExpressionDataType pdt)
{
Type result = typeof(string);
TryToRealType(pdt, out result).FalseThrow("不支持ExpressionDataType的{0}类型转换为CLR的数据类型", pdt);
return(result);
}
protected override bool EqualsExpression(object expected, object actual, ExpressionDataType expectedDataType, ExpressionDataType actualDataType)
{
return(EqualsExpressionCore(expected, actual));
}
/// <summary>
/// 试图转换成真实的类型
/// </summary>
/// <param name="pdt"></param>
/// <param name="type"></param>
/// <returns></returns>
public static bool TryToRealType(this ExpressionDataType pdt, out Type type)
{
type = typeof(string);
return(_DataTypeMappings.TryGetValue(pdt, out type));
}
protected override Type VisitExpression(ExpressionDataType type)
{
return(type.UnderlyingType);
}
