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nix/src/libexpr/eval-error.cc
John Ericson cc24766fa6 Expose the nix component in header include paths
For example, instead of doing

    #include "nix/store-config.hh"
    #include "nix/derived-path.hh"

Now do

    #include "nix/store/config.hh"
    #include "nix/store/derived-path.hh"

This was originally planned in the issue, and also recent requested by
Eelco.

Most of the change is purely mechanical. There is just one small
additional issue. See how, in the example above, we took this
opportunity to also turn `<comp>-config.hh` into `<comp>/config.hh`.
Well, there was already a `nix/util/config.{cc,hh}`. Even though there
is not a public configuration header for libutil (which also would be
called `nix/util/config.{cc,hh}`) that's still confusing, To avoid any
such confusion, we renamed that to `nix/util/configuration.{cc,hh}`.

Finally, note that the libflake headers already did this, so we didn't
need to do anything to them. We wouldn't want to mistakenly get
`nix/flake/flake/flake.hh`!

Progress on #7876
2025-04-01 11:40:42 -04:00

115 lines
3.2 KiB
C++

#include "nix/expr/eval-error.hh"
#include "nix/expr/eval.hh"
#include "nix/expr/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.addTrace(error.state.positions[pos], 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 = 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>
EvalErrorBuilder<T> & EvalErrorBuilder<T>::setIsFromExpr()
{
error.err.isFromExpr = true;
return *this;
}
template<class T>
void EvalErrorBuilder<T>::debugThrow()
{
error.state.runDebugRepl(&error);
// `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 T>
void EvalErrorBuilder<T>::panic()
{
logError(error.info());
printError("This is a bug! An unexpected condition occurred, causing the Nix evaluator to have to stop. If you could share a reproducible example or a core dump, please open an issue at https://github.com/NixOS/nix/issues");
abort();
}
template class EvalErrorBuilder<EvalBaseError>;
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>;
template class EvalErrorBuilder<IFDError>;
}