Enum cranelift_codegen::settings::detail::Detail

pub enum Detail {
    Bool {
        bit: u8,
    },
    Num,
    Enum {
        last: u8,
        enumerators: u16,
    },
    Preset,
}

The different kind of settings along with descriptor bits that depend on the kind.

Variants

Bool

Fields

bit: u8

0-7.

A boolean setting only uses one bit, numbered from LSB.

Num

A numerical setting uses the whole byte.

Enum

Fields

last: u8

Numerical value of last enumerator, allowing for 1-256 enumerators.

enumerators: u16

First enumerator in the ENUMERATORS table.

An Enum setting uses a range of enumerators.

Preset

A preset is not an individual setting, it is a collection of settings applied at once.

The Descriptor::offset field refers to the PRESETS table.

Implementations

impl Detail

pub fn is_preset(self) -> bool

Check if a detail is a Detail::Preset. Useful because the Descriptor offset field has a different meaning when the detail is a preset.

Trait Implementations

impl Clone for Detail

fn clone(&self) -> Detail

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for Detail

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Copy for Detail