forked from lix-project/lix
Qyriad
a4ef195a9f
This is terrible UX, and frankly an eval failure should be a cache
invalidation anyway.
This removes the CachedEvalError type entirely.
Fixes #223.
Change-Id: I91f8003eabd0ea45003024e96d1de3c7ae8e49d8
105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
#include "eval-error.hh"
|
|
#include "eval.hh"
|
|
#include "value.hh"
|
|
|
|
namespace nix {
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::withExitStatus(unsigned int exitStatus)
|
|
{
|
|
error.withExitStatus(exitStatus);
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::atPos(PosIdx pos)
|
|
{
|
|
error.err.pos = error.state.positions[pos];
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::atPos(Value & value, PosIdx fallback)
|
|
{
|
|
return atPos(value.determinePos(fallback));
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::withTrace(PosIdx pos, const std::string_view text)
|
|
{
|
|
error.err.traces.push_front(
|
|
Trace{.pos = error.state.positions[pos], .hint = HintFmt(std::string(text))});
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::withSuggestions(Suggestions & s)
|
|
{
|
|
error.err.suggestions = s;
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::withFrame(const Env & env, const Expr & expr)
|
|
{
|
|
// NOTE: This is abusing side-effects.
|
|
// TODO: check compatibility with nested debugger calls.
|
|
// TODO: What side-effects??
|
|
error.state.debugTraces.push_front(DebugTrace{
|
|
.pos = error.state.positions[expr.getPos()],
|
|
.expr = expr,
|
|
.env = env,
|
|
.hint = HintFmt("Fake frame for debugging purposes"),
|
|
.isError = true});
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
EvalErrorBuilder<T> & EvalErrorBuilder<T>::addTrace(PosIdx pos, HintFmt hint)
|
|
{
|
|
error.addTrace(error.state.positions[pos], hint);
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
template<typename... Args>
|
|
EvalErrorBuilder<T> &
|
|
EvalErrorBuilder<T>::addTrace(PosIdx pos, std::string_view formatString, const Args &... formatArgs)
|
|
{
|
|
|
|
addTrace(error.state.positions[pos], HintFmt(std::string(formatString), formatArgs...));
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
void EvalErrorBuilder<T>::debugThrow()
|
|
{
|
|
if (error.state.debugRepl && !error.state.debugTraces.empty()) {
|
|
const DebugTrace & last = error.state.debugTraces.front();
|
|
const Env * env = &last.env;
|
|
const Expr * expr = &last.expr;
|
|
error.state.runDebugRepl(&error, *env, *expr);
|
|
}
|
|
|
|
// `EvalState` is the only class that can construct an `EvalErrorBuilder`,
|
|
// and it does so in dynamic storage. This is the final method called on
|
|
// any such instance and must delete itself before throwing the underlying
|
|
// error.
|
|
auto error = std::move(this->error);
|
|
delete this;
|
|
|
|
throw error;
|
|
}
|
|
|
|
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>;
|
|
|
|
}
|