Fixed

vest_lib::regular::bytes

Struct Fixed 

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pub struct Fixed<const N: usize>;
Expand description

Combinator for parsing and serializing a fixed number of bytes (statically known).

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impl<const N: usize> Clone for Fixed<N>

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exec fn clone(&self) -> out : Self

ensures
out == *self,
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'x, const N: usize, I, O> Combinator<'x, I, O> for Fixed<N>
where I: VestInput + 'x, O: VestOutput<I>,

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

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exec fn parse(&self, s: I) -> res : Result<(usize, Self::Type), ParseError>

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

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type Type = I

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

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

Read more
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impl<const N: usize> SecureSpecCombinator for Fixed<N>

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open spec fn is_prefix_secure() -> bool

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

{ N > 0 }
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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: Self::Type)

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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>)

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

Read more
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impl<const N: usize> SpecCombinator for Fixed<N>

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open spec fn wf(&self, v: Self::Type) -> bool

{ v.len() == N }
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open spec fn spec_parse(&self, s: Seq<u8>) -> Option<(int, Self::Type)>

{ if N <= s.len() { Some((N as int, s.take(N as int))) } else { None } }
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open spec fn spec_serialize(&self, v: Self::Type) -> Seq<u8>

{ v }
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type Type = Seq<u8>

The view of [Combinator::Result].
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fn requires(&self) -> bool

Read more
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impl<const N: usize> View for Fixed<N>

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

{ *self }
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type V = Fixed<N>

Auto Trait Implementations§

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impl<const N: usize> Freeze for Fixed<N>

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impl<const N: usize> RefUnwindSafe for Fixed<N>

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impl<const N: usize> Send for Fixed<N>

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impl<const N: usize> Sync for Fixed<N>

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impl<const N: usize> Unpin for Fixed<N>

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impl<const N: usize> UnwindSafe for Fixed<N>

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> 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. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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

Uses borrowed data to replace owned data, usually by cloning. Read more
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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>