Module handler 

Handler trait and built-in handlers for packing progress callbacks.

Structs

EarlyStopHandler

Requests early termination when improvement stalls.

LammpsLogHandler

LAMMPS-style screen log for packing runs.

NullHandler

A no-op handler.

PhaseInfo

Information about the current packing phase.

PhaseReport

Summary report emitted at the end of each packing phase.

ProgressHandler

Prints human-readable progress lines to stderr.

StepInfo

Per-iteration progress snapshot.

XYZHandler

Writes packing snapshots as a multi-frame XYZ trajectory.

Enums

MolpackLogLevel

Screen-log detail level for LAMMPS-style packer output.

Traits

Handler

Callback interface called by crate::packer::Molpack during packing.