Files
lix/lix/libexpr/eval-error.cc
T
eldritch horrors dad17a54f7 libexpr: remove Value::determinePos
it was mostly useless, and now it's entirely unused.

Change-Id: I015c83779a7f860e325796684639f05083a50676
2025-04-27 17:38:57 +00:00

100 lines
2.9 KiB
C++

#include "lix/libexpr/eval-error.hh"
#include "lix/libexpr/eval.hh"
#include "lix/libexpr/value.hh"
#include "lix/libutil/types.hh"
namespace nix {
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::withExitStatus(unsigned int exitStatus) &&
{
error->withExitStatus(exitStatus);
return std::move(*this);
}
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::atPos(PosIdx pos) &&
{
error->err.pos = positions[pos];
return std::move(*this);
}
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::withTrace(PosIdx pos, const std::string_view text) &&
{
error->err.traces.push_front(
Trace{.pos = positions[pos], .hint = HintFmt(std::string(text))});
return std::move(*this);
}
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::withSuggestions(Suggestions & s) &&
{
error->err.suggestions = s;
return std::move(*this);
}
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::withFrame(const Env & env, const Expr & expr) &&
{
if (debug) {
error->frame = debug->addTrace(DebugTrace{
.pos = positions[expr.getPos()],
.expr = expr,
.env = env,
.hint = HintFmt("Fake frame for debugging purposes"),
.isError = true
}).entry;
}
return std::move(*this);
}
template<std::derived_from<EvalError> T>
EvalErrorBuilder<T> EvalErrorBuilder<T>::addTrace(PosIdx pos, HintFmt hint) &&
{
error->addTrace(positions[pos], hint);
return std::move(*this);
}
template<std::derived_from<EvalError> T>
template<typename... Args>
EvalErrorBuilder<T>
EvalErrorBuilder<T>::addTrace(PosIdx pos, std::string_view formatString, const Args &... formatArgs) &&
{
addTrace(positions[pos], HintFmt(std::string(formatString), formatArgs...));
return std::move(*this);
}
template<std::derived_from<EvalError> T>
void EvalErrorBuilder<T>::debugThrow(NeverAsync) &&
{
if (debug) {
if (auto last = debug->traces().next()) {
const Env * env = &(*last)->env;
const Expr * expr = &(*last)->expr;
debug->onEvalError(error.get(), *env, *expr);
}
}
throw *error; // NOLINT(lix-foreign-exceptions): type dependent
}
template<std::derived_from<EvalError> T>
void EvalErrorBuilder<T>::throw_() &&
{
throw *error; // NOLINT(lix-foreign-exceptions): type dependent
}
template class EvalErrorBuilder<EvalError>;
template class EvalErrorBuilder<AssertionError>;
template class EvalErrorBuilder<ThrownError>;
template class EvalErrorBuilder<Abort>;
template class EvalErrorBuilder<TypeError>;
template class EvalErrorBuilder<UndefinedVarError>;
template class EvalErrorBuilder<MissingArgumentError>;
template class EvalErrorBuilder<InfiniteRecursionError>;
template class EvalErrorBuilder<InvalidPathError>;
}