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#pragma once
#include "installables.hh"
namespace nix {
struct App
{
std::vector<DerivedPath> context;
Path program;
// FIXME: add args, sandbox settings, metadata, ...
};
struct UnresolvedApp
{
App unresolved;
App resolve(ref<Store> evalStore, ref<Store> store);
};
struct InstallableValue : Installable
{
ref<EvalState> state;
InstallableValue(ref<EvalState> state) : state(state) {}
virtual std::pair<Value *, PosIdx> toValue(EvalState & state) = 0;
/* Get a cursor to each value this Installable could refer to. However
if none exists, throw exception instead of returning empty vector. */
virtual std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state);
/* Get the first and most preferred cursor this Installable could refer
to, or throw an exception if none exists. */
virtual ref<eval_cache::AttrCursor>
getCursor(EvalState & state);
UnresolvedApp toApp(EvalState & state);
static InstallableValue & require(Installable & installable);
static ref<InstallableValue> require(ref<Installable> installable);
};
}
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