EnTT v3.13.x changelog preview

[skypjack]

Changelog

• config:

  • Provide coverage for user defined ENTT_ID_TYPE in the std namespace

• container:

  • Added reverse iterators to dense_set
  • Added iterator_concept to dense map iterators

• core:

  • Introduce any_policy
  • Add basic_any<...>::policy() member function
  • Improved is_equality_comparable[_v] to fully support optional types
  • Type-based nth_argument
  • Reduce compilation cost of type_list_unique

• entity:

  • Reintroduced support for storage listeners in snapshot
  • Make basic_registry<...>::valid fully backward compatible
  • Specialization for single type views with exclusion lists
  • Introduced deletion_policy::swap_only mode directly managed at sparse set level
  • Added basic_sparse_set<...>::free_list to set/get the head of the free list if allowed
  • Introduced basic_sparse_set<...>::swap_only pop protected function
  • Updated entity storage to make it use swap-only deletion policy directly
  • Drop view specialization for single type with exclusion list
  • Returns scoped iterators from basic_sparse_set<...> (only useful with swap-only deletion policy)
  • Entity storage use scoped iterators with its iterable objects
  • View each function use scoped iterators from sparse sets
  • View iterators (begin/end) are scoped if needed (ie entity storage view or the like)
  • basic_storage<void>::get_allocator() works fine too
  • Storage based to_entity function to get entities from components
  • Iterator-based sort_as for sparse sets
  • Iterator-based sort_as for groups
  • basic_registry<...>::try_get doesn't create storage anymore
  • value_type for storage entity is void
  • sigh_mixin support to custom registry types
  • Added iterator_concept to view iterators
  • Added iterator_concept to groups iterators
  • Added iterator_concept to registry iterators
  • Added iterator_concept to handle iterators
  • Added iterator_concept to storage iterators
  • Full support to reserved bits on entity identifiers (ie for disabling components)
  • Shared implementation for all types of views
  • Explicit iterable and const_iterable types exposed by the registry class
  • Index based view iterators (internal change)
  • Removed basic_view::operator[] for size types to avoid forcing non-integral entity types

• graph:

  • Added iterator_concept to adjacency matrix iterators

• meta:

  • Introduce meta_any_policy
  • Add meta_any::policy() member function
  • Meta container support to ::reserve
  • Make basic meta container traits publicly available (with revised aPI)
  • Add meta_type::can_cast member function
  • Add meta_type::can_convert member function
  • Meta container ::rebind accepts a value rather than an any object
  • Meta container iterator support to ::rebind
  • meta_sequence_container::resize support to non default constructible types
  • basic_meta_sequence_container_traits::fixed_size available to final users
  • Correctly initialize all members of meta container wrappers
  • Added iterator_concept to meta iterators
  • Improved meta containers performance

• process:

  • basic_scheduler<...> was fully redesigned for the better
  • In-line .then support for basic_scheduler<...>
  • Allocator-aware basic_scheduler<...>

• resource:

  • Added iterator_concept to cache iterators

Build system

• Make the debug build suitable for SizeBench
• Enable more warnings on the CI
• bzlmod support with tests

Any other business

• Removed all previously deprecated methods
• Updated IWYU entt.imp file
• Make the library more C++20-friendly
• Added a test/example on how to use reserved bits on entity identifiers
• Clang tidy config (and cleanup, still a work-in-progress though)

Natvis support

All natvis files have been updated where necessary.

Breaking changes

• core:

  • nth_argument accepts a type rather than a function, use decltype as needed

• entity:

  • basic_sparse_set<...>::swap_at is now private
  • basic_storage<...>::in_use is deprecated, use basic_sparse_set<...>::free_list instead
  • Entity storage no longer has a type_traits type member
  • Sorting functions of basic_sparse_set<...> don't invoke compact automatically anymore
  • Registry based to_entity function is deprecated, use the storage based version instead
  • basic_sparse_set<...>::sort_as is deprecated, use iterator-based overload of the same function instead
  • basic_group<...>::sort_as is deprecated, use iterator-based overload of the same function instead
  • Storage entity ::pack function is deprecated, use iterator-based sort_as instead
  • basic_view::operator[] no longer available for size types to avoid forcing non-integral entity types
  • basic_sparse_set<...>::at is deprecated as ambiguous, use operator[] instead

• meta:

  • Meta container ::rebind accepts a value rather than an any object
  • Meta container iterators no longer accept underlying iterators on construction, use rebind instead
  • basic_meta_sequence_container_traits::fixed_size required for explicit specializations

Any other business

The documentation is up-to-date and the library is battle-tested with 100% coverage as usual.
I started a long term process to reduce the number of instantiations and also speed up the compilation.
This release contains MANY changes and great improvements in this regard. Still a work in progress though.