Struct cranelift_codegen::isa::StackBaseMask

pub struct StackBaseMask(pub u8);

Bit mask of supported stack bases.

Many instruction encodings can use different base registers while others only work with the stack pointer, say. A StackBaseMask is a bit mask of supported stack bases for a given instruction encoding.

This behaves like a set of StackBase variants.

The internal representation as a u8 is public because stack base masks are used in constant tables generated from the Python encoding definitions.

Methods

impl StackBaseMask

pub fn contains(self, base: StackBase) -> bool

Check if this mask contains the base variant.

Trait Implementations

impl Clone for StackBaseMask

fn clone(&self) -> StackBaseMask

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for StackBaseMask

impl Debug for StackBaseMask

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

Formats the value using the given formatter.

impl PartialEq for StackBaseMask

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for StackBaseMask