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kotlinlang

Kotlin 1.4 will optimize `trimMargin`, `trimIndent` at compile time, see <https://youtrack.jetbrains.com/issue/KT-17755>
I thought this would also allow for const strings using that. I’m guessing this will be the next step.

I know. I meant that allowing `trimMargin` in const expressions will be a likely next step since 1.4 shipped with optimizing it to constant strings at compile time.

Maybe. The issue to really follow is <https://youtrack.jetbrains.com/issue/KT-14652> which brings this as a general feature that doesn't need special-cased.