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bring back id table algorithm instead of std table [backport:2.2] (#24930)

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refs #24929, partially reverts #23403

Instead of using `Table[ItemId, T]`, the old algorithm is brought back
into `TIdTable[T]` to prevent a performance regression. The inheritance
removal from #23403 still holds, only `ItemId`s are stored.

(cherry picked from commit 82553384d1)
This commit is contained in:
metagn
2025-05-06 10:36:20 +03:00
committed by narimiran
parent 39757d421e
commit c385fcb6be
7 changed files with 111 additions and 26 deletions
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4
compiler/semtypinst.nim
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@@ -68,8 +68,8 @@ type
TReplTypeVars* = object
c*: PContext
typeMap*: LayeredIdTable # map PType to PType
symMap*: SymMapping # map PSym to PSym
localCache*: TypeMapping # local cache for remembering already replaced
symMap*: SymMapping # map PSym to PSym
localCache*: TypeMapping # local cache for remembering already replaced
# types during instantiation of meta types
# (they are not stored in the global cache)
info*: TLineInfo