Enum EscapeInfo 

pub enum EscapeInfo {
    NoEscape,
    LocalEscape,
    GlobalEscape,
}

The escape status of a closure or variable.

Variants

NoEscape

The value does not escape its defining scope. It can be stack-allocated.

LocalEscape

The value escapes within the current function (e.g. stored in a local data structure) but does not escape the function itself.

GlobalEscape

The value escapes the function (e.g. returned, stored in a global, or passed to an unknown function). Must be heap-allocated.

Implementations

impl EscapeInfo

pub fn merge(self, other: EscapeInfo) -> EscapeInfo

Merge two escape infos, taking the more conservative (higher) one.

pub fn requires_heap(self) -> bool

Whether heap allocation is required.

Trait Implementations

impl Clone for EscapeInfo

fn clone(&self) -> EscapeInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EscapeInfo

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

Formats the value using the given formatter.

impl Display for EscapeInfo

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

Formats the value using the given formatter.

impl Hash for EscapeInfo

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EscapeInfo

fn cmp(&self, other: &EscapeInfo) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EscapeInfo

fn eq(&self, other: &EscapeInfo) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for EscapeInfo

fn partial_cmp(&self, other: &EscapeInfo) -> Option<Ordering>

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

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl Copy for EscapeInfo

impl Eq for EscapeInfo

impl StructuralPartialEq for EscapeInfo