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fixes #20958; fixes the return type of slice function [backport] (#20959)

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* fixes #20958; fixes the return type of slice function

* add a testcase

(cherry picked from commit 3d5edb41be)
This commit is contained in:
ringabout
2022-11-29 14:21:44 +08:00
committed by narimiran
parent a0eec605ba
commit 57e307f3a8
2 changed files with 15 additions and 0 deletions
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3
compiler/semparallel.nim
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@@ -402,6 +402,9 @@ proc transformSlices(g: ModuleGraph; idgen: IdGenerator; n: PNode): PNode =
let op = n[0].sym
if op.name.s == "[]" and op.fromSystem:
result = copyNode(n)
var typ = newType(tyOpenArray, nextTypeId(g.idgen), result.typ.owner)
typ.add result.typ[0]
result.typ = typ
let opSlice = newSymNode(createMagic(g, idgen, "slice", mSlice))
opSlice.typ = getSysType(g, n.info, tyInt)
result.add opSlice