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Make EvalState::getBuiltin safe for missing attr

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This commit is contained in:
Robert Hensing 2024-11-19 17:30:58 +01:00
parent 3b76d01f3b
commit a58e38dab7
2 changed files with 10 additions and 1 deletions
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6
src/libexpr/eval.cc
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@ -525,7 +525,11 @@ Value * EvalState::addPrimOp(PrimOp && primOp)
Value & EvalState::getBuiltin(const std::string & name)
{
return *baseEnv.values[0]->attrs()->find(symbols.create(name))->value;
auto it = baseEnv.values[0]->attrs()->get(symbols.create(name));
if (it)
return *it->value;
else
throw EvalError("builtin '%1%' not found", name);
}