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Avoid some pointless copying of drvs

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This commit is contained in:
John Ericson
2022-03-18 14:59:56 +00:00
parent 8496be7def
commit 049fae155a
1 changed files with 2 additions and 2 deletions
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src/libexpr/primops.cc
+2 -2
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@@ -1199,7 +1199,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
// Regular, non-CA derivation should always return a single hash and not
// hash per output.
auto hashModulo = hashDerivationModulo(*state.store, Derivation(drv), true);
auto hashModulo = hashDerivationModulo(*state.store, drv, true);
std::visit(overloaded {
[&](const DrvHash & drvHash) {
auto & h = drvHash.hash;
@@ -1240,7 +1240,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
However, we don't bother doing this for floating CA derivations because
their "hash modulo" is indeterminate until built. */
if (drv.type() != DerivationType::CAFloating) {
auto h = hashDerivationModulo(*state.store, Derivation(drv), false);
auto h = hashDerivationModulo(*state.store, drv, false);
drvHashes.lock()->insert_or_assign(drvPath, h);
}