vstd/std_specs/
clone.rs

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1use super::super::prelude::*;
2use core::clone::Clone;
3
4verus! {
5
6#[verifier::external_trait_specification]
7pub trait ExClone: Sized {
8    type ExternalTraitSpecificationFor: core::clone::Clone;
9
10    fn clone(&self) -> Self;
11}
12
13/*
14#[verifier::external_fn_specification]
15pub fn ex_clone_clone_from<T: Clone>(a: &mut T, b: &T)
16{
17    a.clone_from(b)
18}
19*/
20
21pub assume_specification[ <bool as Clone>::clone ](b: &bool) -> (res: bool)
22    returns
23        b,
24;
25
26pub assume_specification[ <char as Clone>::clone ](c: &char) -> (res: char)
27    returns
28        c,
29;
30
31#[allow(suspicious_double_ref_op)]
32pub assume_specification<'b, T: ?Sized, 'a>[ <&'b T as Clone>::clone ](b: &'a &'b T) -> (res: &'b T)
33    ensures
34        res == b,
35;
36
37/*
38#[verifier::external_fn_specification]
39pub fn ex_bool_clone_from(dest: &mut bool, source: &bool)
40    ensures *dest == source,
41{
42    dest.clone_from(source)
43}
44*/
45
46// Cloning a Tracked copies the underlying ghost T
47pub assume_specification<T: Copy>[ <Tracked<T> as Clone>::clone ](b: &Tracked<T>) -> (res: Tracked<
48    T,
49>)
50    ensures
51        res == b,
52;
53
54pub assume_specification<T>[ <Ghost<T> as Clone>::clone ](b: &Ghost<T>) -> (res: Ghost<T>)
55    ensures
56        res == b,
57;
58
59} // verus!
vstd/std_specs/clone.rs

vstd/std_specs/
clone.rs
