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fixes #11073

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This commit is contained in:
Araq 2019-04-22 08:05:16 +02:00
commit 665fcb12dd
2 changed files with 39 additions and 2 deletions
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6
compiler/semexprs.nim
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@ -1528,8 +1528,10 @@ proc asgnToResultVar(c: PContext, n, le, ri: PNode) {.inline.} =
proc asgnToResult(c: PContext, n, le, ri: PNode) =
# Special typing rule: do not allow to pass 'owned T' to 'T' in 'result = x':
if ri.typ != nil and ri.typ.skipTypes(abstractInst).kind == tyOwned and
le.typ != nil and le.typ.skipTypes(abstractInst).kind != tyOwned and ri.kind in nkCallKinds:
const absInst = abstractInst - {tyOwned}
if ri.typ != nil and ri.typ.skipTypes(absInst).kind == tyOwned and
le.typ != nil and le.typ.skipTypes(absInst).kind != tyOwned and
ri.kind in nkCallKinds+{nkObjConstr}:
localError(c.config, n.info, "cannot return an owned pointer as an unowned pointer; " &
"use 'owned(" & typeToString(le.typ) & ")' as the return type")