fleche.storage.memory

Classes

MemoryBackend	A concrete implementation of Storage that stores values in an in-memory dictionary.
ValueMemory	Mixin that recursively destructures collections on save/load.
CallMemory	Bridges CallStorage with StorageBackend primitives.

Module Contents

class fleche.storage.memory.MemoryBackend

Bases: fleche.storage.base.StorageBackend

A concrete implementation of Storage that stores values in an in-memory dictionary.

storage: dict[fleche.digest.Digest, Any]

list() → Iterable[fleche.digest.Digest]

put(value: Any, key: fleche.digest.Digest) → fleche.digest.Digest

get(key: fleche.digest.Digest) → Any

_contains(key: fleche.digest.Digest) → bool

_evict(key: fleche.digest.Digest) → None

class fleche.storage.memory.ValueMemory

Bases: fleche.storage.destructuring.DestructuringMixin, fleche.storage.base.ValueMixin, MemoryBackend

Mixin that recursively destructures collections on save/load.

Place before a ValueMixin in the MRO to add destructuring behavior. Lists, tuples, and dicts are broken apart so each element is stored independently; on load the original structure is reassembled.

Example

>>> from fleche.storage.base import ValueMixin
>>> from fleche.storage.memory import MemoryBackend
>>> @dataclass(frozen=True)
... class MyValueStorage(DestructuringMixin, ValueMixin, MemoryBackend): ...
>>> vm = MyValueStorage(storage={})
>>> key = vm.save([1, [2, 3]])
>>> vm.load(key) == [1, [2, 3]]
True

class fleche.storage.memory.CallMemory

Bases: fleche.storage.base.CallMixin, MemoryBackend

Bridges CallStorage with StorageBackend primitives.

Implements save, load, and query using put and get, deriving the storage key from the call’s lookup key. transform is inherited from CallStorage.

Concrete classes inherit from this and a StorageBackend implementation to get a fully functional call storage.