Enum mmtk::util::alloc::allocators::AllocatorInfo

#[repr(C, u8)]
pub enum AllocatorInfo {
    BumpPointer {
        bump_pointer_offset: usize,
    },
    Unimplemented,
    None,
}

This type describes allocator information. It is used to generate fast paths for the GC. All offset fields are relative to Mutator.

Variants

BumpPointer

Fields

bump_pointer_offset: usize

The byte offset from the mutator’s pointer to the crate::util::alloc::bumpallocator::BumpPointer.

This allocator uses a crate::util::alloc::bumpallocator::BumpPointer as its fastpath.

Unimplemented

This allocator uses a fastpath, but we haven’t implemented it yet.

None

This allocator does not have a fastpath.

Implementations

impl AllocatorInfo

pub fn new<VM: VMBinding>(selector: AllocatorSelector) -> AllocatorInfo

Return an AllocatorInfo for the given allocator selector. This method is provided so that VM compilers may generate allocator fast-path and load fields for the fast-path.

Arguments:

• selector: The allocator selector to query.

Trait Implementations

impl Clone for AllocatorInfo

fn clone(&self) -> AllocatorInfo

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AllocatorInfo

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

Formats the value using the given formatter.

impl Default for AllocatorInfo

fn default() -> AllocatorInfo

Returns the “default value” for a type.

impl Hash for AllocatorInfo

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for AllocatorInfo

fn cmp(&self, other: &AllocatorInfo) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for AllocatorInfo

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

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

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.

impl PartialOrd for AllocatorInfo

fn partial_cmp(&self, other: &AllocatorInfo) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for AllocatorInfo

impl Eq for AllocatorInfo

impl StructuralPartialEq for AllocatorInfo