Struct LimitedStr

pub struct LimitedStr<'a>(/* private fields */);

Wrapped string to fit TRIMMED_MAX_LEN amount of bytes.

The Cow is used to avoid allocating a new String when the LimitedStr is created from a &str.

Plain str is not used because it can’t be properly encoded/decoded via scale codec.

Implementations

impl<'a> LimitedStr<'a>

pub const fn from_small_str(s: &'a str) -> Self

Convert from &str in compile-time.

pub fn as_str(&self) -> &str

Return string slice.

Trait Implementations

impl<'a> Clone for LimitedStr<'a>

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

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for LimitedStr<'a>

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

Formats the value using the given formatter.

impl<'a> Decode for LimitedStr<'a>

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<'a> Display for LimitedStr<'a>

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

Formats the value using the given formatter.

impl<'a> Encode for LimitedStr<'a>

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<'a> From<String> for LimitedStr<'a>

fn from(s: String) -> Self

Converts to this type from the input type.

impl<'a> Ord for LimitedStr<'a>

fn cmp(&self, other: &LimitedStr<'a>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a> PartialEq for LimitedStr<'a>

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> PartialOrd for LimitedStr<'a>

fn partial_cmp(&self, other: &LimitedStr<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> TryFrom<&'a str> for LimitedStr<'a>

type Error = LimitedStrTryFromError

The type returned in the event of a conversion error.

fn try_from(s: &'a str) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TypeInfo for LimitedStr<'a>

where 'a: 'static,

type Identity = LimitedStr<'a>

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl<'a> EncodeLike for LimitedStr<'a>

impl<'a> Eq for LimitedStr<'a>

impl<'a> StructuralPartialEq for LimitedStr<'a>