the derivative function, the nullability check, the rewrite rules - they’re all structural recursion over this type. F#‘s pattern matching makes this natural to write and natural to read. and when you need raw performance in the hot loop, SRTP, inlining, and even raw embedded IL are right there.
Tier 2: Pass-by-reference operations (numeric, text, interval, uuid) called through DirectFunctionCall C wrappers. Optionally LLVM-optimized when built with -DPG_JITTER_USE_LLVM=ON or c2mir-optimized when built with -DPG_JITTER_USE_C2MIR=ON.
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