Struct Constant 

pub struct Constant {
    pub name: Option<String>,
    pub ty: Type,
    pub value: ConstantValue,
    pub spec_id: Option<u32>,
}

Constant or specialization constant record.

Fields

name: Option<String>

ty: Type

Type of constant.

value: ConstantValue

Defined value of constant, or default value of specialization constant.

spec_id: Option<u32>

Specialization constant ID, notice that this is NOT an instruction ID. It is used to identify specialization constants for graphics libraries.

Implementations

impl Constant

pub fn new(name: Option<String>, ty: Type, value: ConstantValue) -> Constant

Create a constant record with name, type and value. ty must be a ScalarType.

pub fn new_itm(ty: Type, value: ConstantValue) -> Constant

Create an intermediate constant record with type and value. Intermediate constants don’t have names because they contribute to subexpressions in arithmetic.

pub fn new_spec( name: Option<String>, ty: Type, value: ConstantValue, spec_id: u32, ) -> Constant

Create a specialization constant record with name, type, default value and a SpecId.

Trait Implementations

impl Clone for Constant

fn clone(&self) -> Constant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Constant

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

Formats the value using the given formatter.

impl Eq for Constant

impl Hash for Constant

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

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Constant

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for Constant