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builtins.warn: Use new EvalBaseError + "evaluation warning"

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This commit is contained in:
Robert Hensing 2024-05-22 12:51:46 +02:00
parent 831d96d8d7
commit 70b1036224
6 changed files with 53 additions and 7 deletions
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20
src/libexpr/eval-error.hh
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@ -15,27 +15,39 @@ class EvalState;
template<class T>
class EvalErrorBuilder;
class EvalError : public Error
/**
* Base class for all errors that occur during evaluation.
*
* Most subclasses should inherit from `EvalError` instead of this class.
*/
class EvalBaseError : public Error
{
template<class T>
friend class EvalErrorBuilder;
public:
EvalState & state;
EvalError(EvalState & state, ErrorInfo && errorInfo)
EvalBaseError(EvalState & state, ErrorInfo && errorInfo)
: Error(errorInfo)
, state(state)
{
}
template<typename... Args>
explicit EvalError(EvalState & state, const std::string & formatString, const Args &... formatArgs)
explicit EvalBaseError(EvalState & state, const std::string & formatString, const Args &... formatArgs)
: Error(formatString, formatArgs...)
, state(state)
{
}
};
/**
* `EvalError` is the base class for almost all errors that occur during evaluation.
*
* All instances of `EvalError` should show a degree of purity that allows them to be
* cached in pure mode. This means that they should not depend on the configuration or the overall environment.
*/
MakeError(EvalError, EvalBaseError);
MakeError(ParseError, Error);
MakeError(AssertionError, EvalError);
MakeError(ThrownError, AssertionError);
@ -90,6 +102,8 @@ public:
[[nodiscard, gnu::noinline]] EvalErrorBuilder<T> & addTrace(PosIdx pos, HintFmt hint);
[[nodiscard, gnu::noinline]] EvalErrorBuilder<T> & setIsFromExpr();
template<typename... Args>
[[nodiscard, gnu::noinline]] EvalErrorBuilder<T> &
addTrace(PosIdx pos, std::string_view formatString, const Args &... formatArgs);