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Lateinit local vars are guaranteed to be non-null after store. So we mark such stores as storing non-null value (could be useful for some other constructs, too), and optimize null checks accordingly.
26 lines
548 B
Kotlin
Vendored
26 lines
548 B
Kotlin
Vendored
// LANGUAGE_VERSION: 1.2
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fun almostAlwaysTrue() = true
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fun runNoInline(f: () -> Unit) = f()
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fun test() {
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lateinit var z: String
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runNoInline {
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// NB this code can be executed in a different thread multiple times, each time with different results.
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// So, 'z' can be initialized at any moment, and should be checked on every read.
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if (almostAlwaysTrue()) {
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z = ""
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}
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}
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println(z)
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println(z)
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println(z)
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}
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// 0 IFNULL
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// 3 IFNONNULL
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// 3 throwUninitializedPropertyAccessException |