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Get rid of most .at calls (#6393)

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Use one of `get` or `getOr` instead which will either return a null-pointer (with a nicer error message) or a default value when the key is missing.
This commit is contained in:
Alain Zscheile 2022-05-04 07:44:32 +02:00 • committed by GitHub
parent 9489b4b7ef
commit 1385b20078
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GPG key ID: 4AEE18F83AFDEB23
22 changed files with 231 additions and 118 deletions
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12
src/libcmd/installables.cc
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@ -871,12 +871,13 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
auto outputHashes = staticOutputHashes(*evalStore, drv); // FIXME: expensive
auto drvOutputs = drv.outputsAndOptPaths(*store);
for (auto & output : bfd.outputs) {
if (!outputHashes.count(output))
auto outputHash = get(outputHashes, output);
if (!outputHash)
throw Error(
"the derivation '%s' doesn't have an output named '%s'",
store->printStorePath(bfd.drvPath), output);
if (settings.isExperimentalFeatureEnabled(Xp::CaDerivations)) {
DrvOutput outputId { outputHashes.at(output), output };
DrvOutput outputId { *outputHash, output };
auto realisation = store->queryRealisation(outputId);
if (!realisation)
throw Error(
@ -887,10 +888,11 @@ std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::bui
} else {
// If ca-derivations isn't enabled, assume that
// the output path is statically known.
assert(drvOutputs.count(output));
assert(drvOutputs.at(output).second);
auto drvOutput = get(drvOutputs, output);
assert(drvOutput);
assert(drvOutput->second);
outputs.insert_or_assign(
output, *drvOutputs.at(output).second);
output, *drvOutput->second);
}
}
res.push_back({installable, BuiltPath::Built { bfd.drvPath, outputs }});