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1bbfb53925
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Implement Phantom typing for Tiny FastCache layer
Refactor FastCache and TLS cache APIs to use Phantom types (hak_base_ptr_t)
for compile-time type safety, preventing BASE/USER pointer confusion.
Changes:
1. core/hakmem_tiny_fastcache.inc.h:
- fastcache_pop() returns hak_base_ptr_t instead of void*
- fastcache_push() accepts hak_base_ptr_t instead of void*
2. core/hakmem_tiny.c:
- Updated forward declarations to match new signatures
3. core/tiny_alloc_fast.inc.h, core/hakmem_tiny_alloc.inc:
- Alloc paths now use hak_base_ptr_t for cache operations
- BASE->USER conversion via HAK_RET_ALLOC macro
4. core/hakmem_tiny_refill.inc.h, core/refill/ss_refill_fc.h:
- Refill paths properly handle BASE pointer types
- Fixed: Removed unnecessary HAK_BASE_FROM_RAW() in ss_refill_fc.h line 176
5. core/hakmem_tiny_free.inc, core/tiny_free_magazine.inc.h:
- Free paths convert USER->BASE before cache push
- USER->BASE conversion via HAK_USER_TO_BASE or ptr_user_to_base()
6. core/hakmem_tiny_legacy_slow_box.inc:
- Legacy path properly wraps pointers for cache API
Benefits:
- Type safety at compile time (in debug builds)
- Zero runtime overhead (debug builds only, release builds use typedef=void*)
- All BASE->USER conversions verified via Task analysis
- Prevents pointer type confusion bugs
Testing:
- Build: SUCCESS (all 9 files)
- Smoke test: PASS (sh8bench runs to completion)
- Conversion path verification: 3/3 paths correct
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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2025-12-04 11:05:06 +09:00 |
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