Enum Visibility 

pub enum Visibility {
    Default,
    Hidden,
    Protected,
}

What the dynamic linker is allowed to do with a symbol.

Orthogonal to Linkage, which is about the static linker. A hidden symbol is still external as far as the object file is concerned; it just does not go in the dynamic symbol table, so nothing outside the shared object can interpose it.

Variants

Default

Exported and interposable, which is what a symbol in a shared library gets unless something says otherwise.

Hidden

Not in the dynamic symbol table at all. __attribute__((visibility("hidden"))) and -fvisibility=hidden.

Protected

In the dynamic symbol table, but a reference from inside this shared object always binds to the definition inside it.

Implementations

impl Visibility

pub const fn name(self) -> &'static str

The spelling in the textual form.

pub fn from_name(name: &str) -> Option<Self>

The visibility that spelling names.

pub fn all() -> impl Iterator<Item = Self>

Every visibility, in declaration order.

Trait Implementations

impl Clone for Visibility

fn clone(&self) -> Visibility

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Visibility

impl Debug for Visibility

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

Formats the value using the given formatter.

impl Default for Visibility

fn default() -> Visibility

Returns the “default value” for a type.

impl Eq for Visibility

impl Hash for Visibility

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 Visibility

fn cmp(&self, other: &Visibility) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for Visibility

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Visibility

fn partial_cmp(&self, other: &Visibility) -> 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 StructuralPartialEq for Visibility