Skip to main content

Parameter

Struct Parameter 

Source
pub struct Parameter {
    pub reg: Register,
    pub ty: MirType,
    pub signedness: Signedness,
    pub aggregate: Option<Aggregate>,
    pub name: Option<String>,
    pub byval_claimed: bool,
}
Expand description

Function parameter

Fields§

§reg: Register

Virtual register assigned to this parameter

§ty: MirType

Type of the parameter

§signedness: Signedness

Signedness of an integer parameter

§aggregate: Option<Aggregate>

Set when the parameter is an aggregate passed by value. reg then names the frame slot holding the callee’s copy, and ty is the pointer to it.

§name: Option<String>

The name the parameter had in the source, without its sigil. Debug info only; None where the frontend supplied none.

§byval_claimed: bool

Set by a byval attribute the frontend stated and lowering verified against its own classification. A backend that does not place this parameter as a by-value stack copy must refuse rather than place it some other way.

Implementations§

Source§

impl Parameter

Source

pub fn new(reg: Register, ty: MirType) -> Self

Creates a signed parameter that is not an aggregate; chain with_signedness or with_aggregate for others.

Source

pub fn with_signedness(self, signedness: Signedness) -> Self

Source

pub fn with_aggregate(self, aggregate: Aggregate) -> Self

Source

pub fn with_name(self, name: impl Into<String>) -> Self

Source

pub fn with_byval_claim(self, claimed: bool) -> Self

Trait Implementations§

Source§

impl Clone for Parameter

Source§

fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for Parameter

Source§

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

Formats the value using the given formatter. Read more
Source§

impl PartialEq for Parameter

Source§

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for Parameter

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

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
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = !

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, !>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.