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filtering KOTLIN.LATEINIT

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Evgeny Mandrikov edited this page Oct 4, 2017 · 3 revisions

Kotlin supports lateinit properties which are particularly useful in situations, when constructor dependency injection is not available (e.g. using frameworks which support only field/method injection or on Android).

Access to a lateinit property is done this way:

   L1
    LINENUMBER 67 L1
    ALOAD 0
    GETFIELD com/better/alarm/background/VibrationService.wakeLock : Landroid/os/PowerManager$WakeLock;
    DUP
    IFNONNULL L2
    LDC "wakeLock"
    INVOKESTATIC kotlin/jvm/internal/Intrinsics.throwUninitializedPropertyAccessException (Ljava/lang/String;)V
   L2
    INVOKEVIRTUAL android/os/PowerManager$WakeLock.acquire ()V

As you can see, under normal circumstances this part here will be always missed:

    LDC "wakeLock"
    INVOKESTATIC kotlin/jvm/internal/Intrinsics.throwUninitializedPropertyAccessException (Ljava/lang/String;)V

In other words, IFNONNULL L2 else case always misses. Perhaps it would be possible to exclude this assuming that no one uses throwUninitializedPropertyAccessException in their code.

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