/// <summary> 构造用于拓展系统Type对象的属性和方法的对象
/// </summary>
/// <param name="type">用于构造TypeInfo的Type对象实例,不可为null</param>
internal TypeInfo(Type type)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
Type = type;
TypeCode = Type.GetTypeCode(type);
IsArray = type.IsArray;
IsMakeGenericType = type.IsGenericType && !type.IsGenericTypeDefinition;
var valueType = Nullable.GetUnderlyingType(type);
if (valueType != null) //判断可空值类型
{
IsNullable = true;
NullableUnderlyingType = TypesHelper.GetTypeInfo(valueType);
type = valueType;
}
if (type.IsEnum)
{
IsNumberType = true;
EnumUnderlyingType = TypesHelper.GetTypeInfo(Enum.GetUnderlyingType(Type));
}
else if (IsNullable)
{
IsNumberType = NullableUnderlyingType.IsNumberType;
}
else
{
IsNumberType = (TypeCode >= TypeCode.SByte && TypeCode <= TypeCode.Decimal);
}
}
/// <summary> 获取缓存
/// </summary>
/// <param name="type">反射对象类型</param>
/// <param name="ignoreCase">属性/字段名称是否忽略大小写</param>
/// <exception cref="ArgumentException">缓存中的对象类型与参数type不一致</exception>
/// <exception cref="ArgumentNullException">参数type为null</exception>
public static Literacy Cache(Type type, bool ignoreCase)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
var info = TypesHelper.GetTypeInfo(type);
return(ignoreCase ? info.IgnoreCaseLiteracy : info.Literacy);
}
/// <summary> 初始化
/// </summary>
private void Init()
{
Name = MemberInfo.Name;
ClassType = MemberInfo.DeclaringType;
TypeInfo = TypesHelper.GetTypeInfo(OriginalType);
if (TypeInfo.IsNullable)
{
Nullable = true;
MemberType = TypeInfo.NullableUnderlyingType.Type;
}
else
{
MemberType = OriginalType;
}
Getter = PreGetter;
Setter = PreSetter;
}
/// <summary> 初始化对象属性,字段访问组件,ignoreCase参数指示是否需要区分大小写
/// </summary>
/// <param name="type">需快速访问的类型</param>
/// <param name="ignoreCase">是否区分大小写(不区分大小写时应保证类中没有同名的(仅大小写不同的)属性或字段)</param>
public Literacy(Type type, bool ignoreCase)
: this(TypesHelper.GetTypeInfo(type), ignoreCase)
{
}
