)]}'
{
  "commit": "9620ee7dbc3b99ff0c2f24e3f3b12cc7af2396df",
  "tree": "2cd4b74880d77badd8db5b94558e9c279accec3c",
  "parents": [
    "d6533184e0cf3adb2ad5b33e6b0f3b48e8657285"
  ],
  "author": {
    "name": "Clayton Knittel",
    "email": "cknittel@google.com",
    "time": "Fri Nov 06 15:17:23 2026 -0800"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Fri Nov 06 17:09:55 2026 -0800"
  },
  "message": "Consolidate allocation methods in `SerialArena`\n\n`MaybeAllocateAligned` and `MaybeAllocateAlignedWithCleanup` are now consolidated into `AllocateAlignedImpl`. This new allocation method is generic over a \"mode\", alignment, and whether a cleanup action should be registered.\n\nThe \"mode\" is one of `kDefault`, `kNoFallback`, or `kInfallible`. `kDefault` will try allocating in the current block, else allocating a new block at least large enough to fit `n`. `kNoFallback` will fail early if there is not enough space in the current block to fit `n`. `kInfallible` assumes there is enough space, so it doesn\u0027t check `limit_`.\n\nThe `Align` can be either `ArenaAlignDefault`, which assumes `n` and `ptr` are already aligned to `8` so it does no extra work (but has some `DCHECK`s). Or `Align` can be `MemoryAlign`, which is a runtime valued alignment `\u003e\u003d 8`. This will align `ptr` and `n` dynamically.\n\nThe `Cleanup` is either `NoCleanup` if no cleanup action is necessary, or `WithCleanup` which registers a cleanup action.\n\nImprovements:\n* Fallback allocation is now explicitly a tailcall.\n* Fallback allocation calls the `kInfallible` variant of `AllocateAlignedImpl` after allocating a new block. This skips the redundant `limit_` check.\nPiperOrigin-RevId: 1015893500\n",
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