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raulraja
/ TwitterHandle.kt
Created
February 20, 2020 12:16
Type Refinements with Type Proofs in Kotlin
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| /* Coming up ~ April 2020 */ | |
| package test | |
| import arrow.* | |
| inline class TwitterHandle(val handle: String) { | |
| companion object : Refined<String> { | |
| override val validate: String.() -> Map<String, Boolean> = { | |
| mapOf( | |
| "Should start with '@'" to startsWith("@"), |