Enum Linkage

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pub enum Linkage {
Show 17 variants ExternalLinkage, AvailableExternallyLinkage, LinkOnceAnyLinkage, LinkOnceODRLinkage, LinkOnceODRAutoHideLinkage, WeakAnyLinkage, WeakODRLinkage, AppendingLinkage, InternalLinkage, PrivateLinkage, DLLImportLinkage, DLLExportLinkage, ExternalWeakLinkage, GhostLinkage, CommonLinkage, LinkerPrivateLinkage, LinkerPrivateWeakLinkage,
}
Expand description

Represents the linkage types in LLVM for global values. Linkage types determine the visibility and behavior of symbols across different modules and within the same module.

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ExternalLinkage

Externally visible function or variable. Can be linked from another module.

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AvailableExternallyLinkage

Similar to ExternalLinkage, but the symbol may be discarded if not used.

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LinkOnceAnyLinkage

Keeps one copy of the function or variable when linking, discarding others.

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LinkOnceODRLinkage

Similar to LinkOnceAnyLinkage, but the symbol cannot be discarded.

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LinkOnceODRAutoHideLinkage

Same as LinkOnceODRLinkage, but with hidden visibility.

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WeakAnyLinkage

Keeps one copy, discarding others, but prefer the local copy.

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WeakODRLinkage

Similar to WeakAnyLinkage, but ensures that the symbol is unique and is emitted only once.

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AppendingLinkage

Appending linkage: when linked, multiple definitions of the same variable are concatenated.

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InternalLinkage

Local to the translation unit, not visible outside of it.

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PrivateLinkage

Similar to InternalLinkage, but prevents inlining and other optimizations.

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DLLImportLinkage

Indicates that the global value should be imported from a DLL.

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DLLExportLinkage

Indicates that the global value should be exported to a DLL.

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ExternalWeakLinkage

The global variable or function is merged into the program only if it is used.

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GhostLinkage

A special linkage type used internally by the linker.

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CommonLinkage

Common linkage for uninitialized global variables.

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LinkerPrivateLinkage

Linker private linkage, used to indicate a symbol that is internal to the module.

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LinkerPrivateWeakLinkage

Weak version of LinkerPrivateLinkage.

Trait Implementations§

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impl Clone for Linkage

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fn clone(&self) -> Linkage

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 Linkage

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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<LLVMLinkage> for Linkage

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fn from(linkage: LLVMLinkage) -> Self

Converts to this type from the input type.
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impl From<Linkage> for LLVMLinkage

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fn from(linkage: Linkage) -> Self

Converts to this type from the input type.
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impl PartialEq for Linkage

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fn eq(&self, other: &Linkage) -> 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 Linkage

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impl Eq for Linkage

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impl StructuralPartialEq for Linkage

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<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, 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.