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Constraints

Struct Constraints 

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pub(crate) struct Constraints<'z3, 'tcx> {
    pub(crate) assertions: Vec<Bool<'z3>>,
    pub(crate) term_caches: TermCaches<'z3, 'tcx>,
}
Expand description

Accumulated solver state for the current path.

assertions is the assertion stream fed to Z3; term_caches holds the per-phenomenon term-provenance caches that keep expressions compact and linear. Everything is path-scoped and monotonic: it accumulates as the VM steps and is never reset within a path (or across inlined frames).

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§assertions: Vec<Bool<'z3>>

Accumulated solver constraints along the current path: branch/guard constraints (SwitchInt/Assert), API preconditions, and symbolic layout facts (sizeof_T, align_T). Asserted into the solver by VmState::assert_all and by the property checker’s feasibility queries.

§term_caches: TermCaches<'z3, 'tcx>

Term-provenance caches that shape terms into a form Z3 can solve.

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impl<'z3, 'tcx> Default for Constraints<'z3, 'tcx>

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<'z3, 'tcx> !DynSend for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> !DynSync for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> !RefUnwindSafe for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> !Send for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> !Sync for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> !UnwindSafe for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> Freeze for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> Unpin for Constraints<'z3, 'tcx>

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impl<'z3, 'tcx> UnsafeUnpin for Constraints<'z3, 'tcx>

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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, 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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

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type Error = !

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

Performs the conversion.
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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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V