vstd::std_specs::ops

Trait ExSub

Source 
pub trait ExSub<Rhs = Self> {
    type ExternalTraitSpecificationFor: Sub<Rhs>;
    type Output;

    // Required methods
    spec fn obeys_sub_spec() -> bool;
    spec fn sub_req(self, rhs: Rhs) -> bool
       where Self: Sized;
    spec fn sub_spec(self, rhs: Rhs) -> Self::Output
       where Self: Sized;
    exec fn sub(self, rhs: Rhs) -> ret : Self::Output;
}

Required Associated Types§

Source

type ExternalTraitSpecificationFor: Sub<Rhs>

Source

type Output

Required Methods§

Source

spec fn obeys_sub_spec() -> bool

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spec fn sub_req(self, rhs: Rhs) -> bool
where Self: Sized,

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spec fn sub_spec(self, rhs: Rhs) -> Self::Output
where Self: Sized,

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exec fn sub(self, rhs: Rhs) -> ret : Self::Output

requires
self.sub_req(rhs),
ensures
Self::obeys_sub_spec() ==> ret == self.sub_spec(rhs),

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§