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Avoid copying sorts.

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This commit is contained in:
chriseth 2022-06-27 15:48:15 +02:00
parent 87bffbba98
commit cc3c2138a6
1 changed files with 7 additions and 4 deletions
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11
tools/solsmt.cpp
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@ -140,7 +140,7 @@ bool isNumber(string_view const& _expr)
}
}
smtutil::Expression toSMTUtilExpression(SMTLib2Expression const& _expr, map<string, SortPointer> const& _variableSorts)
smtutil::Expression toSMTUtilExpression(SMTLib2Expression const& _expr, map<string, SortPointer>& _variableSorts)
{
return std::visit(GenericVisitor{
[&](string_view const& _atom) {
@ -157,8 +157,7 @@ smtutil::Expression toSMTUtilExpression(SMTLib2Expression const& _expr, map<stri
string_view op = get<string_view>(_subExpr.front().data);
if (op == "let")
{
// TODO would be good if we did not have to copy this here.
map<string, SortPointer> subSorts = _variableSorts;
map<string, SortPointer> subSorts;
solAssert(_subExpr.size() == 3);
// We change the nesting here:
// (let ((x1 t1) (x2 t2)) T) -> let(x1(t1), x2(t2), T)
@ -174,7 +173,11 @@ smtutil::Expression toSMTUtilExpression(SMTLib2Expression const& _expr, map<stri
subSorts[string(varName)] = replacement.sort;
arguments.emplace_back(Expression(string(varName), {move(replacement)}, replacement.sort));
}
arguments.emplace_back(toSMTUtilExpression(_subExpr.at(2), subSorts));
for (auto&& [name, value]: subSorts)
_variableSorts[name] = value;
arguments.emplace_back(toSMTUtilExpression(_subExpr.at(2), _variableSorts));
for (auto const& var: subSorts)
_variableSorts.erase(var.first);
sort = arguments.back().sort;
}
else