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DnsName

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结构体 DnsName 

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pub struct DnsName<'a>(/* private fields */);
展开描述

一种将字符串(借用或 owned)封装为语法上合法的 DNS 名称的类型。

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impl<'a> DnsName<'a>

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pub fn borrow(&'a self) -> Self

从一个 owned 的 DnsName 产生一个借用的 DnsName

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pub fn to_lowercase_owned(&self) -> DnsName<'static>

复制本对象以产生一个 owned 的 DnsName,同时将大小写统一为小写——一步完成。

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pub fn to_owned(&self) -> DnsName<'static>

从一个(可能借用的)DnsName 产生一个 owned 的 DnsName

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pub const fn try_from_str(s: &str) -> Result<DnsName<'_>, InvalidDnsNameError>

从一个借用的 str 产生一个借用的 DnsName

trait 实现§

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impl AsRef<str> for DnsName<'_>

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fn as_ref(&self) -> &str

将该类型转换为(通常按类型推导出的)输入类型的共享引用。
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impl<'a> Clone for DnsName<'a>

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fn clone(&self) -> DnsName<'a>

返回该值的一个副本。更多信息
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. 更多信息
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impl<'a> Debug for DnsName<'a>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

使用给定的格式化器格式化该值。更多信息
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impl<'a> From<DnsName<'a>> for ServerName<'a>

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fn from(dns_name: DnsName<'a>) -> Self

将该输入类型转换为此类型。
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impl<'a> Hash for DnsName<'a>

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fn hash<__H: Hasher>(&self, state: &mut __H)

将该值送入给定的 Hasher 中。更多信息
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. 更多信息
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impl<'a> PartialEq for DnsName<'a>

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fn eq(&self, other: &DnsName<'a>) -> bool

测试 selfother 值是否相等,供 == 使用。
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fn ne(&self, other: &Rhs) -> bool

测试 != 运算符。默认实现几乎总是够用,除非有非常充分的理由,否则不应被覆盖。
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impl<'a> TryFrom<&'a [u8]> for DnsName<'a>

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type Error = InvalidDnsNameError

转换出错时返回的类型。
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fn try_from(value: &'a [u8]) -> Result<Self, Self::Error>

执行转换。
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impl<'a> TryFrom<&'a str> for DnsName<'a>

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type Error = InvalidDnsNameError

转换出错时返回的类型。
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fn try_from(value: &'a str) -> Result<Self, Self::Error>

执行转换。
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impl TryFrom<String> for DnsName<'static>

Available on crate feature alloc only.
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type Error = InvalidDnsNameError

转换出错时返回的类型。
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fn try_from(value: String) -> Result<Self, Self::Error>

执行转换。
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impl<'a> Eq for DnsName<'a>

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impl<'a> StructuralPartialEq for DnsName<'a>

自动 trait 实现§

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impl<'a> Freeze for DnsName<'a>

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impl<'a> RefUnwindSafe for DnsName<'a>

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impl<'a> Send for DnsName<'a>

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impl<'a> Sync for DnsName<'a>

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impl<'a> Unpin for DnsName<'a>

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impl<'a> UnsafeUnpin for DnsName<'a>

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impl<'a> UnwindSafe for DnsName<'a>

blanket 实现§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. 更多信息
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. 更多信息
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. 更多信息
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 更多信息
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impl<T> From<T> for T

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fn from(t: T) -> T

原样返回参数。

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

调用 U::from(self)

即此转换的实际行为取决于 From<T> for U 的实现。

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

获得所有权后的类型。
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. 更多信息
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 更多信息
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

转换出错时返回的类型。
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

执行转换。
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

转换出错时返回的类型。
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

执行转换。