Struct cranelift_codegen::ir::constant::ConstantPool

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pub struct ConstantPool { /* private fields */ }
Expand description

Maintains the mapping between a constant handle (i.e. Constant) and its constant data (i.e. ConstantData).

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impl ConstantPool

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pub fn new() -> Self

Create a new constant pool instance.

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pub fn clear(&mut self)

Empty the constant pool of all data.

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pub fn insert(&mut self, constant_value: ConstantData) -> Constant

Insert constant data into the pool, returning a handle for later referencing; when constant data is inserted that is a duplicate of previous constant data, the existing handle will be returned.

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pub fn get(&self, constant_handle: Constant) -> &ConstantData

Retrieve the constant data given a handle.

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pub fn set(&mut self, constant_handle: Constant, constant_value: ConstantData)

Link a constant handle to its value. This does not de-duplicate data but does avoid replacing any existing constant values. use set to tie a specific const42 to its value; use insert to add a value and return the next available const entity.

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pub fn iter(&self) -> impl Iterator<Item = (&Constant, &ConstantData)>

Iterate over the constants in insertion order.

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pub fn entries_mut(&mut self) -> impl Iterator<Item = &mut ConstantData>

Iterate over mutable entries in the constant pool in insertion order.

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pub fn len(&self) -> usize

Return the number of constants in the pool.

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pub fn byte_size(&self) -> usize

Return the combined size of all of the constant values in the pool.

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impl Clone for ConstantPool

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fn clone(&self) -> ConstantPool

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 Hash for ConstantPool

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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 ConstantPool

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

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.