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Rework error throwing, and test it

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This commit is contained in:
Guillaume Maudoux 2022-10-25 01:46:10 +02:00
parent 8bd8583bc7
commit e93bf69b44
8 changed files with 190 additions and 102 deletions
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16
src/libexpr/primops.cc
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@ -560,10 +560,7 @@ struct CompareValues
if (v1->type() == nInt && v2->type() == nFloat)
return v1->integer < v2->fpoint;
if (v1->type() != v2->type())
state.debugThrowLastTrace(EvalError({
.msg = hintfmt("%scannot compare %s with %s", errorCtx, showType(*v1), showType(*v2)),
.errPos = std::nullopt,
}));
state.error("cannot compare %s with %s", showType(*v1), showType(*v2)).debugThrow<EvalError>();
switch (v1->type()) {
case nInt:
return v1->integer < v2->integer;
@ -581,14 +578,11 @@ struct CompareValues
} else if (i == v1->listSize()) {
return true;
} else if (!state.eqValues(*v1->listElems()[i], *v2->listElems()[i], pos, errorCtx)) {
return (*this)(v1->listElems()[i], v2->listElems()[i], "while comparing two lists");
return (*this)(v1->listElems()[i], v2->listElems()[i], "while comparing two list elements");
}
}
default:
state.debugThrowLastTrace(EvalError({
.msg = hintfmt("%scannot compare %s with %s; values of that type are incomparable", errorCtx, showType(*v1), showType(*v2)),
.errPos = std::nullopt,
}));
state.error("cannot compare %s with %s; values of that type are incomparable", showType(*v1), showType(*v2)).debugThrow<EvalError>();
}
} catch (Error & e) {
e.addTrace(std::nullopt, errorCtx);
@ -614,7 +608,7 @@ static Bindings::iterator getAttr(
Bindings::iterator value = attrSet->find(attrSym);
if (value == attrSet->end()) {
throw TypeError({
.msg = hintfmt("attribute '%s' missing %s", state.symbols[attrSym], errorCtx),
.msg = hintfmt("attribute '%s' missing %s", state.symbols[attrSym], normaltxt(errorCtx)),
.errPos = state.positions[attrSet->pos],
});
// TODO XXX
@ -628,7 +622,7 @@ static Bindings::iterator getAttr(
static void prim_genericClosure(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{
state.forceAttrs(*args[0], noPos, "while evaluating the first argument pased to builtins.genericClosure");
state.forceAttrs(*args[0], noPos, "while evaluating the first argument passed to builtins.genericClosure");
/* Get the start set. */
Bindings::iterator startSet = getAttr(state, state.sStartSet, args[0]->attrs, "in the attrset passed as argument to builtins.genericClosure");