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smt2_parser: implemented define-const

This commit is contained in:
Daniel Kroening 2018-12-03 17:18:44 +00:00
parent 4b91ee864f
commit ec43b052a1
1 changed files with 32 additions and 0 deletions
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32
src/solvers/smt2/smt2_parser.cpp
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@ -1089,6 +1089,38 @@ void smt2_parsert::command(const std::string &c)
entry.type = type;
entry.definition = nil_exprt();
}
else if(c == "define-const")
{
if(next_token() != SYMBOL)
throw error("expected a symbol after define-const");
const irep_idt id = buffer;
if(id_map.find(id) != id_map.end())
{
std::ostringstream msg;
msg << "identifier `" << id << "' defined twice";
throw error(msg.str());
}
const auto type = sort();
const auto value = expression();
// check type of value
if(value.type() != type)
{
std::ostringstream msg;
msg << "type mismatch in constant definition: expected `"
<< smt2_format(type) << "' but got `" << smt2_format(value.type())
<< '\'';
throw error(msg.str());
}
// create the entry
auto &entry = id_map[id];
entry.type = type;
entry.definition = value;
}
else if(c=="define-fun")
{
if(next_token()!=SYMBOL)