kotlin-fork/compiler/testData/diagnostics/tests/operatorsOverloading/InconsistentGetSet.fir.kt

// !DIAGNOSTICS: -UNUSED_PARAMETER

object Legal {
    operator fun get(i: Int) = 0
    operator fun set(i: Int, newValue: Int) {}
    operator fun set(i: Int, newValue: String) {}
}

fun testLegal() {
    ++Legal[0]
    Legal[0]++
    Legal[0] += 1
}

object MismatchingTypes {
    operator fun get(i: Int) = 0
    operator fun set(i: Int, newValue: String) {}
}

fun testMismatchingTypes() {
    <!INAPPLICABLE_CANDIDATE!>++MismatchingTypes[0]<!>
    <!INAPPLICABLE_CANDIDATE!>MismatchingTypes[0]++<!>
    <!UNRESOLVED_REFERENCE!>MismatchingTypes[0] += 1<!>
}

object MismatchingArities1 {
    operator fun get(i: Int) = 0
    operator fun set(i: Int, j: Int, newValue: Int) {}
}

object MismatchingArities2 {
    operator fun get(i: Int, j: Int) = 0
    operator fun set(i: Int, newValue: Int) {}
}

fun testMismatchingArities() {
    <!INAPPLICABLE_CANDIDATE!>++MismatchingArities1[0]<!>
    <!INAPPLICABLE_CANDIDATE!>MismatchingArities1[0]++<!>
    <!UNRESOLVED_REFERENCE!>MismatchingArities1[0] += 1<!>

    <!UNRESOLVED_REFERENCE!>++<!><!INAPPLICABLE_CANDIDATE!>MismatchingArities2[0]<!>
    <!INAPPLICABLE_CANDIDATE!>MismatchingArities2[0]<!><!UNRESOLVED_REFERENCE!>++<!>
    <!UNRESOLVED_REFERENCE!><!INAPPLICABLE_CANDIDATE!>MismatchingArities2[0]<!> += 1<!>
}