Where I can find rts_* methods documentation?

[claudio]

Unfortunately, we haven’t exposed these in a library so haven’t really documented, partly because the meaning may change from GC to GC. A post explaining (some) of these is here:

Motoko, Array, Memory

First of all, let me point out that constructing an array by repeated concatenation is not something you should do in production code. Since both operands need to be copied for each append, the cost of doing this is quadratic in the size of the final array. Assuming you want an immutable array, a more appropriate way is to create the complete array as mutable, initialise it via mutation, and then freeze it. As for the rts values: memory_size is the current size of the Wasm memory array (mostly…

I’ll open a doc issue to properly expose and document these, since users seems to be using them more and more.