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ref #20846; give a deprecation message for overriding = hook (#21020)

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give a deprecation message for overriding `=` hook
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ringabout 2022-12-05 14:13:51 +08:00 • committed by GitHub
commit 6f96c4bc96
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compiler/semstmts.nim
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@ -1881,6 +1881,8 @@ proc semOverride(c: PContext, s: PSym, n: PNode) =
if s.magic == mAsgn: return
incl(s.flags, sfUsed)
incl(s.flags, sfOverriden)
if name == "=":
message(c.config, n.info, warnDeprecated, "Overriding `=` hook is deprecated; Override `=copy` hook instead")
let t = s.typ
if t.len == 3 and t[0] == nil and t[1].kind == tyVar:
var obj = t[1][0]