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fixed nullability bug in the if-then-else info (#5620)

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Margus Veanes 2021-10-26 00:11:07 -07:00 committed by GitHub
parent 4cfc73779a
commit efcad5ff35
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1 changed files with 7 additions and 1 deletions
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8
src/ast/seq_decl_plugin.cpp
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@ -1703,7 +1703,13 @@ seq_util::rex::info seq_util::rex::info::orelse(seq_util::rex::info const& i) co
// unsigned ite_min_length = std::min(min_length, i.min_length);
// lbool ite_nullable = (nullable == i.nullable ? nullable : l_undef);
// TBD: whether ite is interpreted or not depends on whether the condition is interpreted and both branches are interpreted
return info(false, false, false, false, normalized && i.normalized, monadic && i.monadic, singleton && i.singleton, nullable, std::min(min_length, i.min_length), std::max(star_height, i.star_height));
return info(false, false, false, false,
normalized && i.normalized,
monadic && i.monadic,
singleton && i.singleton,
((nullable == l_true && i.nullable == l_true) ? l_true : ((nullable == l_false && i.nullable == l_false) ? l_false : l_undef)),
std::min(min_length, i.min_length),
std::max(star_height, i.star_height));
}
else
return i;