@TH3CHARLie Except for the most performance critical primitives it's better to use a wrapper function, since they are easier to write and maintain. If these turn out to be bottlenecks in some (realistic) benchmarks, we can consider implementing these in irbuild.

I checked that this improves the str_methods microbenchmark (in https://github.com/mypyc/mypyc-benchmarks) from 1.3x faster than CPython to 1.9x faster (on Linux)!

The results should automatically update overnight here so we can see how it performs on the benchmarks server: https://github.com/mypyc/mypyc-benchmark-results/blob/master/reports/summary-microbenchmarks.md