Mikhail Glukhikh
48 lines
1.8 KiB
Kotlin
Vendored
48 lines
1.8 KiB
Kotlin
Vendored
fun nonExhaustiveInt(x: Int) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'else' branch">when</error>(x) {
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0 -> false
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}
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fun nonExhaustiveBoolean(b: Boolean) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'true' branch or 'else' branch instead">when</error>(b) {
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false -> 0
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}
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enum class Color {
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RED,
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GREEN,
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BLUE
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}
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fun nonExhaustiveEnum(c: Color) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'RED', 'BLUE' branches or 'else' branch instead">when</error>(c) {
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Color.GREEN -> 0xff00
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}
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fun nonExhaustiveNullable(c: Color?) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'GREEN', 'null' branches or 'else' branch instead">when</error>(c) {
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Color.RED -> 0xff
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Color.BLUE -> 0xff0000
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}
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fun whenOnEnum(c: Color) {
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<warning descr="[NON_EXHAUSTIVE_WHEN] when expression on enum is recommended to be exhaustive, add 'RED' branch or 'else' branch instead">when</warning>(c) {
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Color.BLUE -> {}
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Color.GREEN -> {}
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}
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}
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sealed class Variant {
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object Singleton : Variant()
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class Something : Variant()
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object Another : Variant()
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}
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fun nonExhaustiveSealed(v: Variant) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'is Something', 'Another' branches or 'else' branch instead">when</error>(v) {
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Variant.Singleton -> false
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}
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sealed class Empty
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fun nonExhaustiveEmpty(e: Empty) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'else' branch">when</error>(<warning>e</warning>) {}
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fun nonExhaustiveNullableEmpty(e: Empty?) = <error descr="[NO_ELSE_IN_WHEN] when expression must be exhaustive, add necessary 'else' branch">when</error>(<warning>e</warning>) {}
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