docs/io.github.mkohm.detekt.hint.rules/-open-closed-principle/visit-when-expression.md
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title: OpenClosedPrinciple.visitWhenExpression -
---
[io.github.mkohm.detekt.hint.rules](../index.html) / [OpenClosedPrinciple](index.html) / [visitWhenExpression](./visit-when-expression.html)
# visitWhenExpression
`fun visitWhenExpression(expression: KtWhenExpression): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)