https://cs.opensource.google/go/go/+/refs/tags/go1.23.4:src/internal/weak/pointer.go;l=62 https://cs.opensource.google/go/go/+/refs/tags/go1.23.4:src/... https

https://cs.opensource.google/go/go/+/refs/tags/go1.23.4:src/internal/weak/pointer.go;l=62 https://cs.opensource.google/go/go/+/refs/tags/go1.23.4:src/... https://cs.opensource.google/go/go/+/master:src/runtime/mheap.go;l=2068 https://cs.opensource.google/go/go/+/master:src/runtime/mhea... Looks like most of it is implemented directly in the runtime.