U24Le

vest_lib::regular::uints

Struct U24Le 

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pub struct U24Le;
Expand description

Combinator for parsing and serializing unsigned u24 integers in little-endian byte order.

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impl<'x> Combinator<'x, &[u8], Vec<u8>> for U24Le

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exec fn length(&self, v: Self::SType) -> usize

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exec fn parse(&self, s: &[u8]) -> res : Result<(usize, u24), ParseError>

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exec fn serialize( &self, v: Self::SType, data: &mut Vec<u8>, pos: usize, ) -> res : Result<usize, SerializeError>

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type Type = u24

The result type of parsing
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type SType = &'x u24

The input type of serialization, often a reference to Self::Type. For “structural” formats though (e.g., crate::regular::sequence::Pair and crate::regular::variant::Choice), this is the tuple/sum of the corresponding Combinator::SType types.
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fn ex_requires(&self) -> bool

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impl SecureSpecCombinator for U24Le

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open spec fn is_prefix_secure() -> bool

{ true }
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open spec fn is_productive(&self) -> bool

{ true }
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proof fn lemma_prefix_secure(&self, s1: Seq<u8>, s2: Seq<u8>)

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proof fn theorem_serialize_parse_roundtrip(&self, v: u24)

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proof fn theorem_parse_serialize_roundtrip(&self, s: Seq<u8>)

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proof fn lemma_parse_length(&self, s: Seq<u8>)

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proof fn lemma_parse_productive(&self, s: Seq<u8>)

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fn corollary_parse_surjective(&self, v: Self::Type)

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fn corollary_serialize_injective(&self, v1: Self::Type, v2: Self::Type)

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fn corollary_serialize_injective_contraposition( &self, v1: Self::Type, v2: Self::Type, )

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fn corollary_parse_non_malleable(&self, buf1: Seq<u8>, buf2: Seq<u8>)

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fn lemma_serialize_productive(&self, v: Self::Type)

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impl SpecCombinator for U24Le

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open spec fn spec_parse(&self, s: Seq<u8>) -> Option<(int, u24)>

{
    match Fixed::<3>.spec_parse(s) {
        Some((n, bytes)) => Some((n, u24([bytes[2], bytes[1], bytes[0]]))),
        _ => None,
    }
}
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open spec fn spec_serialize(&self, v: u24) -> Seq<u8>

{
    let bytes = v.0;
    Fixed::<3>.spec_serialize([bytes[2], bytes[1], bytes[0]]@)
}
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type Type = u24

The view of [Combinator::Result].
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fn wf(&self, v: Self::Type) -> bool

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fn requires(&self) -> bool

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impl View for U24Le

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open spec fn view(&self) -> Self::V

{ *self }
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type V = U24Le

Auto Trait Implementations§

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impl Freeze for U24Le

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impl RefUnwindSafe for U24Le

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impl Send for U24Le

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impl Sync for U24Le

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impl Unpin for U24Le

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impl UnwindSafe for U24Le

Blanket Implementations§

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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. Read more
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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. Read more
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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. Read more
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impl<T> From<T> for T
where T: View, <T as View>::V: SpecFrom<<T as View>::V>,

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exec fn ex_from(t: T) -> res : T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, VERUS_SPEC__A> FromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: From<T>,

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fn obeys_from_spec() -> bool

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fn from_spec(v: T) -> VERUS_SPEC__A

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impl<T, U> Into<U> for T
where T: View, U: View + From<T>, <U as View>::V: SpecFrom<<T as View>::V>,

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exec fn ex_into(self) -> U

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

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, VERUS_SPEC__A> IntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: Into<T>,

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fn obeys_into_spec() -> bool

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fn into_spec(self) -> T

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

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fn obeys_into_spec() -> bool

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fn into_spec(self) -> U

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impl<T> SpecFrom<T> for T

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open spec fn spec_from(t: T) -> T

{ t }
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impl<T, U> SpecInto<U> for T
where U: SpecFrom<T>,

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open spec fn spec_into(self) -> U

{ U::spec_from(self) }
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impl<T, U> SpecTryInto<U> for T
where U: SpecTryFrom<T>,

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open spec fn spec_try_into(self) -> Result<U, <U as SpecTryFrom<T>>::Error>

{ U::spec_try_from(self) }
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type Error = <U as SpecTryFrom<T>>::Error

The type returned in the event of a conversion error.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, VERUS_SPEC__A> TryFromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryFrom<T>,

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fn obeys_try_from_spec() -> bool

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fn try_from_spec( v: T, ) -> Result<VERUS_SPEC__A, <VERUS_SPEC__A as TryFrom<T>>::Error>

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impl<T, U> TryInto<U> for T
where T: View, U: View + TryFrom<T>, <U as View>::V: SpecTryFrom<<T as View>::V>,

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exec fn ex_try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

The type returned in the event of a conversion error.
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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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, VERUS_SPEC__A> TryIntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryInto<T>,

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fn obeys_try_into_spec() -> bool

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fn try_into_spec(self) -> Result<T, <VERUS_SPEC__A as TryInto<T>>::Error>

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impl<T, U> TryIntoSpecImpl<U> for T
where U: TryFrom<T>,

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fn obeys_try_into_spec() -> bool

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fn try_into_spec(self) -> Result<U, <U as TryFrom<T>>::Error>