Enum ParentMapping 

pub enum ParentMapping {
    OffsetsOnly,
    Explicit(Vec<u32>),
    BlockIndexed {
        block: u16,
        parents: Vec<u32>,
    },
}

How an atom’s residue is recovered.

Variants

OffsetsOnly

Nothing stored; search the residue offsets.

Explicit(Vec<u32>)

One residue position per atom.

BlockIndexed

One residue position per block of atoms, refined by a bounded scan.

Fields

block: u16

Atoms per block.

parents: Vec<u32>

The residue the first atom of each block belongs to.

Implementations

impl ParentMapping

pub const DEFAULT_BLOCK: u16 = 128

Atoms per block in the default mapping.

A hundred and twenty-eight four-byte entries is one entry per five hundred and twelve bytes of atom data, and the scan it implies stays inside a few residues.

pub fn block_indexed(parents_in_order: &[u32]) -> Self

Builds the default mapping for a chunk whose atoms start at first_atom.

parent_of is the residue of each atom in chunk order.

pub fn explicit(parents_in_order: &[u32]) -> Self

Builds a mapping that answers in one load, for a chunk whose atoms are looked up individually often enough to justify the memory.

pub fn bytes(&self) -> usize

The bytes this mapping costs for atoms atoms.

pub fn resolve( &self, local: u32, first_atom: u32, residues: &ResidueTable, ) -> Option<ResidueIndex>

The residue of the atom at local within a chunk whose atoms begin at first_atom in the structure’s flat order.

residues is consulted only where the mapping cannot answer alone.

Trait Implementations

impl Clone for ParentMapping

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParentMapping

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

Formats the value using the given formatter.

impl Default for ParentMapping

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ParentMapping

impl PartialEq for ParentMapping

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParentMapping