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primops: change to std::function, allowing the passing of user data
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2 changed files with 7 additions and 3 deletions
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@ -17,6 +17,7 @@
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#include <optional>
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#include <unordered_map>
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#include <mutex>
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#include <functional>
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namespace nix {
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@ -72,7 +73,7 @@ struct PrimOp
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/**
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* Implementation of the primop.
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*/
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PrimOpFun fun;
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std::function<std::remove_pointer<PrimOpFun>::type> fun;
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/**
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* Optional experimental for this to be gated on.
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@ -3402,8 +3402,11 @@ static void prim_sort(EvalState & state, const PosIdx pos, Value * * args, Value
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callFunction. */
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/* TODO: (layus) this is absurd. An optimisation like this
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should be outside the lambda creation */
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if (args[0]->isPrimOp() && args[0]->primOp->fun == prim_lessThan)
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return CompareValues(state, noPos, "while evaluating the ordering function passed to builtins.sort")(a, b);
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if (args[0]->isPrimOp()) {
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auto ptr = args[0]->primOp->fun.target<decltype(&prim_lessThan)>();
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if (ptr && *ptr == prim_lessThan)
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return CompareValues(state, noPos, "while evaluating the ordering function passed to builtins.sort")(a, b);
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}
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Value * vs[] = {a, b};
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Value vBool;
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