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Make most calls to determinePos() lazy

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This commit is contained in:
Eelco Dolstra 2022-02-04 00:31:33 +01:00
parent 4c755c3b3f
commit bd383d1b6f
10 changed files with 46 additions and 24 deletions
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4
src/libexpr/get-drvs.cc
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@ -172,7 +172,7 @@ StringSet DrvInfo::queryMetaNames()
bool DrvInfo::checkMeta(Value & v)
{
state->forceValue(v, v.determinePos(noPos));
state->forceValue(v, [&]() { return v.determinePos(noPos); });
if (v.type() == nList) {
for (auto elem : v.listItems())
if (!checkMeta(*elem)) return false;
@ -278,7 +278,7 @@ static bool getDerivation(EvalState & state, Value & v,
bool ignoreAssertionFailures)
{
try {
state.forceValue(v, v.determinePos(noPos));
state.forceValue(v, [&]() { return v.determinePos(noPos); });
if (!state.isDerivation(v)) return true;
/* Remove spurious duplicates (e.g., a set like `rec { x =