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#include "value-to-json.hh"
#include "eval-inline.hh"
#include "signals.hh"
#include "store-api.hh"
#include <cstdlib>
#include <iomanip>
#include <nlohmann/json.hpp>
namespace nix {
using json = nlohmann::json;
json printValueAsJSON(EvalState & state, bool strict,
Value & v, const PosIdx pos, NixStringContext & context, bool copyToStore)
{
checkInterrupt();
if (strict) state.forceValue(v, pos);
json out;
switch (v.type()) {
case nInt:
out = v.integer.value;
break;
case nBool:
out = v.boolean;
break;
case nString:
copyContext(v, context);
out = v.string.s;
break;
case nPath:
if (copyToStore)
out = state.store->printStorePath(
state.copyPathToStore(context, v.path()));
else
out = v.path().path.abs();
break;
case nNull:
// already initialized as null
break;
case nAttrs: {
auto maybeString = state.tryAttrsToString(pos, v, context, false, false);
if (maybeString) {
out = *maybeString;
break;
}
auto i = v.attrs->find(state.sOutPath);
if (i == v.attrs->end()) {
out = json::object();
StringSet names;
for (auto & j : *v.attrs)
names.emplace(state.symbols[j.name]);
for (auto & j : names) {
Attr & a(*v.attrs->find(state.symbols.create(j)));
try {
out[j] = printValueAsJSON(state, strict, *a.value, a.pos, context, copyToStore);
} catch (Error & e) {
e.addTrace(state.positions[a.pos],
HintFmt("while evaluating attribute '%1%'", j));
throw;
}
}
} else
return printValueAsJSON(state, strict, *i->value, i->pos, context, copyToStore);
break;
}
case nList: {
out = json::array();
int i = 0;
for (auto elem : v.listItems()) {
try {
out.push_back(printValueAsJSON(state, strict, *elem, pos, context, copyToStore));
} catch (Error & e) {
e.addTrace(state.positions[pos],
HintFmt("while evaluating list element at index %1%", i));
throw;
}
i++;
}
break;
}
case nExternal:
return v.external->printValueAsJSON(state, strict, context, copyToStore);
break;
case nFloat:
out = v.fpoint;
break;
case nThunk:
case nFunction:
state.error<TypeError>(
"cannot convert %1% to JSON",
showType(v)
)
.atPos(v.determinePos(pos))
.debugThrow();
}
return out;
}
void printValueAsJSON(EvalState & state, bool strict,
Value & v, const PosIdx pos, std::ostream & str, NixStringContext & context, bool copyToStore)
{
str << printValueAsJSON(state, strict, v, pos, context, copyToStore);
}
json ExternalValueBase::printValueAsJSON(EvalState & state, bool strict,
NixStringContext & context, bool copyToStore) const
{
state.error<TypeError>("cannot convert %1% to JSON", showType())
.debugThrow();
}
}
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