diff options
Diffstat (limited to 'lib/system')
| -rw-r--r-- | lib/system/gc.nim | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/system/gc.nim b/lib/system/gc.nim index 425963f3f..74ac68eea 100644 --- a/lib/system/gc.nim +++ b/lib/system/gc.nim @@ -548,7 +548,10 @@ proc growObj(old: pointer, newsize: int, gch: var GcHeap): pointer = gcTrace(res, csAllocated) track("growObj old", ol, 0) track("growObj new", res, newsize) - when reallyDealloc: + when defined(nimIncrSeqV3): + # since we steal the old seq's contents, we set the old length to 0. + cast[PGenericSeq](old).len = 0 + elif reallyDealloc: sysAssert(allocInv(gch.region), "growObj before dealloc") if ol.refcount shr rcShift <=% 1: # free immediately to save space: |