Does the compiler optimize the following code so t...

# announcements

[Hullaballoonatic]

Does the compiler optimize the following code so that the return value is not computed with every toString given that it never changes, or should I create a backing field?

class Foo(val str: String) {
    override fun toString() = str.reversed()
        .repeat(1000)
        .trim()
        .otherStuff()
}

[Dominaezzz]

Create a backing field.

[Hullaballoonatic]

okay

[streetsofboston]

^^^ Yup. The compiler doesn’t know whether the reversed, repeat, trim and otherStuff have side-effects or not… It can’t optimize this.