Ivan Kochurkin
47 lines
2.1 KiB
Kotlin
Vendored
47 lines
2.1 KiB
Kotlin
Vendored
class IncDec() {
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operator fun inc() : IncDec = this
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operator fun dec() : IncDec = this
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}
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fun testIncDec() {
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var x = IncDec()
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x++
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++x
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x--
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--x
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x = x++
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x = x--
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x = ++x
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x = --x
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}
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class WrongIncDec() {
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operator fun inc() : Int = 1
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operator fun dec() : Int = 1
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}
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fun testWrongIncDec() {
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var x = WrongIncDec()
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Int but WrongIncDec was expected">x++</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Int but WrongIncDec was expected">++x</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Int but WrongIncDec was expected">x--</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Int but WrongIncDec was expected">--x</error>
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}
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class UnitIncDec() {
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operator fun inc() : Unit {}
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operator fun dec() : Unit {}
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}
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fun testUnitIncDec() {
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var x = UnitIncDec()
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">x++</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">++x</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">x--</error>
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<error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">--x</error>
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x = <error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">x++</error>
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x = <error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">x--</error>
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x = <error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">++x</error>
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x = <error descr="[RESULT_TYPE_MISMATCH] Function return type mismatch: actual type is kotlin/Unit but UnitIncDec was expected">--x</error>
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}
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