diff options
Diffstat (limited to 'src/libexpr/eval.hh')
| -rw-r--r-- | src/libexpr/eval.hh | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh index 42dd73d11..4425efbca 100644 --- a/src/libexpr/eval.hh +++ b/src/libexpr/eval.hh @@ -18,6 +18,12 @@ namespace nix { +/** + * We put a limit on primop arity because it lets us use a fixed size array on + * the stack. 8 is already an impractical number of arguments. Use an attrset + * argument for such overly complicated functions. + */ +constexpr size_t maxPrimOpArity = 8; class Store; class EvalState; @@ -69,6 +75,12 @@ struct PrimOp * Optional experimental for this to be gated on. */ std::optional<ExperimentalFeature> experimentalFeature; + + /** + * Validity check to be performed by functions that introduce primops, + * such as RegisterPrimOp() and Value::mkPrimOp(). + */ + void check(); }; /** |