Struct StaticSymbol

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pub struct StaticSymbol(/* private fields */);
Expand description

Const-compatible static symbol.

This type is created by the static_sym!(...) macro, and can be used in const contexts. See the macro documentation for more details.

CAUTION: Declarations with StaticSymbol must not be used before static initializers have run, i.e. before main().

Methods from Deref<Target = Symbol>§

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pub fn as_str(&self) -> &'static str

Get the string representation of this symbol.

This operation is guaranteed to not take any locks, and is effectively free.

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pub fn inner(&self) -> &'static &'static str

Get the underlying representation of this symbol.

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pub fn as_ptr(&self) -> NonNull<&'static str>

Get the underlying pointer value of this symbol.

This is the basis for computing equality and hashes. Symbols representing the same string always have the same pointer value.

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pub fn to_ffi(&self) -> u64

Convert the symbol to an FFI-friendly u64.

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pub fn len(&self) -> usize

Length of the underlying string.

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pub fn is_empty(&self) -> bool

Whether or not this is the empty symbol.

Trait Implementations§

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impl AsRef<Symbol> for StaticSymbol

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fn as_ref(&self) -> &Symbol

Converts this type into a shared reference of the (usually inferred) input type.
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impl Borrow<Symbol> for StaticSymbol

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fn borrow(&self) -> &Symbol

Immutably borrows from an owned value. Read more
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impl Clone for StaticSymbol

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fn clone(&self) -> StaticSymbol

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for StaticSymbol

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

Formats the value using the given formatter. Read more
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impl Deref for StaticSymbol

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type Target = Symbol

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl Display for StaticSymbol

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

Formats the value using the given formatter. Read more
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impl From<&StaticSymbol> for Symbol

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fn from(value: &StaticSymbol) -> Self

Converts to this type from the input type.
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impl From<StaticSymbol> for Symbol

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fn from(value: StaticSymbol) -> Self

Converts to this type from the input type.
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impl PartialEq<StaticSymbol> for Symbol

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq<Symbol> for StaticSymbol

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

Blanket Implementations§

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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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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

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.