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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <Eris/Utils.h>
#include <Atlas/Message/Element.h>
#include <stdexcept>
#include <cassert>
using namespace Atlas::Message;
std::string getType(const Element &obj)
{
Element::ListType lt(Eris::getMember(obj, "parents").asList());
return lt[0].asString();
}
const Element getArg(const Element &op, unsigned int i)
{
const Element::ListType lt(Eris::getMember(op, "args").asList());
if (i < 0 || i >= lt.size())
throw std::invalid_argument("in getArg, index is out of range");
return lt[i];
}
/// assume that args[0] is a map, and then lookup the named value
const Element getArg(const Element &op, const std::string &nm)
{
const Element::ListType args(Eris::getMember(op, "args").asList());
assert(!args.empty());
const Element::MapType mt(args[0].asMap());
Element::MapType::const_iterator I=mt.find(nm);
if (I == mt.end())
throw std::invalid_argument("in getArg, member name not found");
return I->second;
}
bool hasArg(const Element &op, const std::string &nm)
{
const Element::ListType args(Eris::getMember(op, "args").asList());
if (args.empty()) return false;
const Element::MapType mt(args[0].asMap());
Element::MapType::const_iterator I=mt.find(nm);
return (I != mt.end());
}
const Atlas::Message::Element&
getMember(const Atlas::Message::Element &obj, unsigned int i)
{
assert(obj.isList());
const Element::ListType &l = obj.asList();
assert(i < l.size());
if (i >= l.size())
throw std::invalid_argument("list index out of range");
return l[i];
}
const Atlas::Message::Element&
getMember(const Atlas::Message::Element &obj, const std::string &nm)
{
assert(obj.isMap());
const Element::MapType &m = obj.asMap();
Element::MapType::const_iterator i = m.find(nm);
assert(i != m.end());
if (i == m.end())
throw std::invalid_argument("unknown member");
return i->second;
}
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