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kotlinlang

Hello! Does stdlib contains function for generating hash code by several arguments?

No. Probably covered by <https://youtrack.jetbrains.com/issue/KT-51440>

```arrayOf(foo, bar, baz).contentHashCode()```

When I was at Google I was trying to get R8 to eliminate array allocations like that which don't escape. I should revive that branch.

Relies on `contentHashCode()` being `inline` or inlined

We saw a decent amount of code like `if (thing in arrayOf(foo, bar))` that it was targeting, but it'd also be good for this

ah, that would be nice. at least `contentHashCode()` is inline - <https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Objects.html#hash(java.lang.Object...)|Objects.hash()> isn't, so there's probably no getting around the varargs array construction for that

`contentHashCode` is inline just because it delegates to `Arrays.hashCode`