Extensions to copy maps

[ilya-g]

Discussions about the Extensions to copy maps will be held here.

[voddan]

There is an empty cell in the reference table for Iterable<Pair<K, V>>.toMutableMap(): MutableMap<K, V>. There is a similar function for an immutable map Iterable<Pair<K, V>>.toMap(): Map<K, V>. Would not it be logical to introduce the mutable one?

[ilya-g]

@voddan Iterable<Pair<K, V>>.toMap(destination: M) covers that case and it seems to be required not so often. We have it in the "future advancements" section :)

[binkley]

I'm glad there's a toMutableMap, toMap, etc. Disappointed there is not a simple copy which knows the map type and "does the right thing" (akin to JDK clone without the downsides).

[ilya-g]

@binkley This is not possible in general case, see the discussion in this issue: KT-11221