vam: replace sam-based upcast() with native version#6820
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nwt
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Apr 11, 2026
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| b := vector.NewDynamicBuilder() | ||
| for i := range from.Len() { | ||
| typ, err := u.sctx.LookupByValue(vector.TypeValueValue(to, i)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| in := vector.Pick(from, []uint32{i}) | ||
| out := u.upcast(in, typ) | ||
| if out == nil { | ||
| out = vector.NewWrappedError(u.sctx, "upcast: value not a subtype of "+sup.FormatType(typ), in) | ||
| } | ||
| b.Write(out) | ||
| } | ||
| return b.Build(u.sctx) |
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