Enum c2rust_refactor::analysis::ownership::constraint::Perm

pub enum Perm<'lty> {
    Concrete(ConcretePerm),
    Min(&'lty [Perm<'lty>]),
    StaticVar(Var),
    SigVar(Var),
    InstVar(Var),
    LocalVar(Var),
}

A permission expression.

Variants

Concrete(ConcretePerm)

A concrete permission.

Min(&'lty [Perm<'lty>])

The minimum of some set of other permissions. The slice should contain only atomic permissions, not Mins.

StaticVar(Var)SigVar(Var)InstVar(Var)LocalVar(Var)

Methods

impl<'lty, 'tcx> Perm<'lty>

pub fn read() -> Perm<'lty>

pub fn write() -> Perm<'lty>

pub fn move_() -> Perm<'lty>

pub fn var(pv: PermVar) -> Perm<'lty>

pub fn as_var(&self) -> Option<PermVar>

pub fn min(
    a: Perm<'lty>,
    b: Perm<'lty>,
    arena: &'lty SyncDroplessArena
) -> Perm<'lty>

Construct the minimum of two permissions. This needs a reference to the arena, since it may need to allocate a new slice for Min.

pub fn contains(&self, other: Perm<'lty>) -> bool

Check if other appears somewhere within self. Note this checks syntactic presence only, not any kind of subtyping relation.

pub fn for_each_replacement<F>(
    &self,
    arena: &'lty SyncDroplessArena,
    old: Perm<'lty>,
    news: &[Perm<'lty>],
    callback: F
) where
    F: FnMut(Perm<'lty>), 

Modify self by replacing old with each element of news in turn, yielding each result to callback.

pub fn for_each_atom<F: FnMut(Perm<'lty>)>(&self, callback: &mut F)

Iterater over each atomic (non-Min) permission that appears in self.

Trait Implementations

impl<'lty> Eq for Perm<'lty>

impl<'lty> Copy for Perm<'lty>

impl<'lty> PartialOrd<Perm<'lty>> for Perm<'lty>

fn partial_cmp(&self, other: &Perm<'lty>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Perm<'lty>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Perm<'lty>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Perm<'lty>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Perm<'lty>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'lty> PartialEq<Perm<'lty>> for Perm<'lty>

fn eq(&self, other: &Perm<'lty>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Perm<'lty>) -> bool

This method tests for !=.

impl<'lty> Clone for Perm<'lty>

fn clone(&self) -> Perm<'lty>

Returns a copy of the value.

default fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'lty> Ord for Perm<'lty>

fn cmp(&self, other: &Perm<'lty>) -> Ordering

This method returns an Ordering between self and other.

default fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

default fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

default fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<'lty> Debug for Perm<'lty>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'lty> Hash for Perm<'lty>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

default fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].