Module packing 

Shared code generation utilities for storage slot packing.

This module provides common logic for computing slot and offset assignments used by both the #[derive(Storable)] and #[contract] macros.

Structs

LayoutField 🔒

A single field in the storage layout with computed slot information.

PackingConstants 🔒

Helper for generating packing constant identifiers

Enums

SlotAssignment 🔒

Represents how a slot is assigned

Functions

allocate_slots 🔒

Build layout IR from field information.

classify_field_type 🔒

Classify a field based on its type.

const_name 🔒

Convert a field name to a constant name (SCREAMING_SNAKE_CASE)

gen_collision_check_fn 🔒

Generate collision detection debug assertions for a field against all other fields.

gen_constants_from_ir 🔒

Generate packing constants from layout IR.

gen_layout_ctx_expr 🔒

Generate a LayoutCtx expression for accessing a field.

gen_slot_packing_logic 🔒

Generate slot packing decision logic.

get_neighbor_slot_refs 🔒

Helper to compute prev and next slot constant references for a field at a given index.