Pavel V. Talanov
49 lines
842 B
Kotlin
49 lines
842 B
Kotlin
package test
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trait X {
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fun foo(): String? {
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return null
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}
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}
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trait Y {
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fun foo(): String {
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return "foo"
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}
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}
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trait Incompatible {
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fun foo(): Int {
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return 3
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}
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}
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class Test1(val x: X) : X by x, Y {
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override fun foo(): <!RETURN_TYPE_MISMATCH_ON_OVERRIDE!>String?<!> {
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return null
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}
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}
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class Test2(val x: X) : X by x, Y {
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override fun foo(): String {
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return "foo"
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}
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}
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class Test3(val y: Y) : X, Y by y {
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override fun foo(): <!RETURN_TYPE_MISMATCH_ON_OVERRIDE!>String?<!> {
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return null
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}
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}
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class Test4(val y: Y) : X, Y by y {
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override fun foo(): String {
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return "foo"
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}
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}
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class Test5(val y: Y, val x: X) : X by x, Y by y, Incompatible {
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override fun foo(): <!RETURN_TYPE_MISMATCH_ON_OVERRIDE!>Int<!> {
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return 3
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}
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} |