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nix-env: Load files in ~/.nix-defexpr on demand

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So if you do "nix-env -qa -A nixos", then other channels won't be
parsed/evaluated at all.
This commit is contained in:
Eelco Dolstra 2013-09-03 15:45:32 +02:00
parent c57ed84e28
commit 07a08bddf0
3 changed files with 18 additions and 3 deletions
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6
src/libexpr/eval.cc
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@ -222,6 +222,12 @@ void EvalState::addPrimOp(const string & name,
}
void EvalState::getBuiltin(const string & name, Value & v)
{
v = *baseEnv.values[0]->attrs->find(symbols.create(name))->value;
}
/* Every "format" object (even temporary) takes up a few hundred bytes
of stack space, which is a real killer in the recursive
evaluator. So here are some helper functions for throwing