Ivan Kochurkin
31 lines
936 B
Kotlin
Vendored
31 lines
936 B
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_EXPRESSION
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// FILE: Observer.java
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public interface Observer<K> {
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void onChanged(K k);
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}
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// FILE: LiveData.java
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public class LiveData<T> {
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public void observe(java.lang.Runnable r, Observer<? super T> o) {}
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}
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// FILE: extension.kt
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fun <T> LiveData<T>.observe(a: Any, observer: (T) -> Unit): Observer<T> {
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return Observer { observer(it) }
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}
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// FILE: test.kt
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fun <T> test1(r: Runnable, l: LiveData<T>): Observer<T> = <!RETURN_TYPE_MISMATCH!>l.observe(r) { }<!> // partial conversion
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fun <T> test2(r: Runnable, o: Observer<T>, l: LiveData<T>) {
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val a = l.observe(r, o) // no conversion
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit")!>a<!>
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val b = l.observe({}, {}) // conversion for all arguments
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit")!>b<!>
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val c = l.observe({}) {} // conversion for all arguments
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<!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit")!>c<!>
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}
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