NRE from an "uninitialized this" in constructor

Support
4

Is this a compiler bug or a conscious design decision?

The compiler is smart enough when we inline the bar function:

class Foo {
    val c: String

    init {
        // bar()
        println(c.length) // Compile-time error: Variable 'c' must be initialized
        c = ""
    }

    fun bar() {
        println(c.length)
    }

}

So why doesn’t the compiler check for uninitialized variables inside bar() ? Would it be too time-consuming?

1 Like