Compile-time adapter that converts typed component metadata into a plain ComponentDesc.
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#include <component_desc.h>
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using | CT = component_type_t< T > |
| | Reflected Gaia component type wrapper.
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using | U = typename component_type_t< T >::Type |
| | Stored C++ payload type.
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using | DescU = typename CT::TypeFull |
| | Fully-qualified component type used for stable symbol/hash generation.
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| static constexpr ComponentLookupHash | hash_lookup () |
| | Returns the stable lookup hash for the component type. The constexpr local forces compile-time evaluation. Unoptimized builds would otherwise re-hash the type name on every typed component lookup (has, get, set, views).
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| static constexpr auto | name () |
| | Returns the reflected component symbol name.
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| static constexpr uint32_t | size () |
| | Returns the payload size stored in chunks.
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| static constexpr uint32_t | alig () |
| | Returns the payload alignment required by the component storage policy. Table columns are aligned within the chunk data area, so their alignment can't exceed MemoryBlockAlignment. Sparse payloads live in heap containers, which only guarantee alignof(std::max_align_t).
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| static uint32_t | soa (std::span< uint8_t, meta::StructToTupleMaxTypes > soaSizes) |
| | Populates SoA element sizes for SoA payloads.
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| static constexpr DataStorageType | storage_type () |
| | Returns the compile-time storage mode requested for the component payload. GAIA_STORAGE(DontFragment) maps to table storage for empty tags and sparse storage for AoS payloads.
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| static constexpr auto | func_ctor () |
| | Builds the optional constructor callback for typed AoS payloads.
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| static constexpr auto | func_dtor () |
| | Builds the optional destructor callback for typed AoS payloads.
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| static constexpr auto | func_copy_ctor () |
| | Builds the copy-constructor callback used when typed payload storage grows or migrates.
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| static constexpr auto | func_move_ctor () |
| | Builds the move-constructor callback used when typed payload storage grows or migrates.
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| static constexpr auto | func_copy () |
| | Builds the copy-assignment callback used for typed payload writes.
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| static constexpr auto | func_move () |
| | Builds the move-assignment callback used for typed payload writes.
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| static constexpr auto | func_swap () |
| | Builds the swap callback used by storage operations.
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| static constexpr auto | func_cmp () |
| | Builds the equality comparison callback for typed payload values.
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| static constexpr auto | func_save () |
| | Builds the serializer save callback for typed payload values.
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| static constexpr auto | func_load () |
| | Builds the serializer load callback for typed payload values.
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| static ecs::ComponentDesc | make (util::str_view descName, std::span< uint8_t, meta::StructToTupleMaxTypes > soaSizes) |
| | Builds the plain descriptor used by component cache registration.
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template<typename T>
struct gaia::ecs::detail::ComponentDesc< T >
Compile-time adapter that converts typed component metadata into a plain ComponentDesc.
- Template Parameters
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| T | Component type or component wrapper being registered. |
◆ alig()
Returns the payload alignment required by the component storage policy. Table columns are aligned within the chunk data area, so their alignment can't exceed MemoryBlockAlignment. Sparse payloads live in heap containers, which only guarantee alignof(std::max_align_t).
- Returns
- Component payload alignment in bytes.
◆ func_cmp()
Builds the equality comparison callback for typed payload values.
- Returns
- Equality callback using operator== when available, otherwise byte comparison.
◆ func_copy()
Builds the copy-assignment callback used for typed payload writes.
- Returns
- Copy-assignment callback for the component payload type.
◆ func_copy_ctor()
Builds the copy-constructor callback used when typed payload storage grows or migrates.
- Returns
- Copy-constructor callback for the component payload type.
◆ func_ctor()
Builds the optional constructor callback for typed AoS payloads.
- Returns
- Constructor callback, or nullptr when construction is trivial or SoA-managed.
◆ func_dtor()
Builds the optional destructor callback for typed AoS payloads.
- Returns
- Destructor callback, or nullptr when destruction is trivial or SoA-managed.
◆ func_load()
Builds the serializer load callback for typed payload values.
- Returns
- Load callback for the component payload type.
◆ func_move()
Builds the move-assignment callback used for typed payload writes.
- Returns
- Move-assignment callback for the component payload type.
◆ func_move_ctor()
Builds the move-constructor callback used when typed payload storage grows or migrates.
- Returns
- Move-constructor callback for the component payload type.
◆ func_save()
Builds the serializer save callback for typed payload values.
- Returns
- Save callback for the component payload type.
◆ func_swap()
Builds the swap callback used by storage operations.
- Returns
- Swap callback for the component payload type.
◆ hash_lookup()
Returns the stable lookup hash for the component type. The constexpr local forces compile-time evaluation. Unoptimized builds would otherwise re-hash the type name on every typed component lookup (has, get, set, views).
- Returns
- Component lookup hash derived from reflected type metadata.
◆ make()
Builds the plain descriptor used by component cache registration.
- Parameters
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| descName | Normalized component symbol name. |
| soaSizes | Scratch/output storage for SoA element sizes. The returned descriptor keeps a non-owning pointer to this buffer and must be consumed before the buffer expires. |
- Returns
- Component descriptor for the current component type.
◆ name()
Returns the reflected component symbol name.
- Returns
- Reflected type name for descriptor registration.
◆ size()
Returns the payload size stored in chunks.
- Returns
- 0 for empty marker components, otherwise sizeof(payload type).
◆ soa()
Populates SoA element sizes for SoA payloads.
- Parameters
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| soaSizes | Scratch/output storage for per-element byte sizes. |
- Returns
- Number of SoA elements, or 0 for AoS payloads.
◆ storage_type()
Returns the compile-time storage mode requested for the component payload. GAIA_STORAGE(DontFragment) maps to table storage for empty tags and sparse storage for AoS payloads.
- Returns
- Component storage mode.
The documentation for this struct was generated from the following file:
1.9.8