Struct cranelift_codegen::ir::ExtFuncData

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pub struct ExtFuncData {
    pub name: ExternalName,
    pub signature: SigRef,
    pub colocated: bool,
}
Expand description

An external function.

Information about a function that can be called directly with a direct call instruction.

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§name: ExternalName

Name of the external function.

§signature: SigRef

Call signature of function.

§colocated: bool

Will this function be defined nearby, such that it will always be a certain distance away, after linking? If so, references to it can avoid going through a GOT or PLT. Note that symbols meant to be preemptible cannot be considered colocated.

If true, some backends may use relocation forms that have limited range. The exact distance depends on the code model in use. Currently on AArch64, for example, Cranelift uses a custom code model supporting up to +/- 128MB displacements. If it is unknown how far away the target will be, it is best not to set the colocated flag; in general, this flag is best used when the target is known to be in the same unit of code generation, such as a Wasm module.

See the documentation for RelocDistance for more details. A colocated flag value of true implies RelocDistance::Near.

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impl ExtFuncData

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pub fn display<'a>( &'a self, params: Option<&'a FunctionParameters> ) -> DisplayableExtFuncData<'a>

Returns a displayable version of the ExtFuncData, with or without extra context to prettify the output.

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impl Clone for ExtFuncData

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fn clone(&self) -> ExtFuncData

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 ExtFuncData

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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 Hash for ExtFuncData

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ExtFuncData

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for ExtFuncData

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> 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.