map/deep_freeze_utils library

Deep freeze: recursively unmodifiable views of maps, lists, and sets. Roadmap #90.

Dart has no language-level immutability, but Map/List/Set offer .unmodifiable views that throw on mutation. Applying that recursively guards a whole configuration / decoded-JSON tree against accidental edits shared across call sites — a defensive copy that fails loud instead of silently letting one consumer corrupt another's data.

Functions

deepFreeze(Object? value) → Object?

Returns a deeply-unmodifiable copy of value.