Implements KAnnotatedElement.hasAnnotation()

This commit fixes KT-29041, by adding a convenience method to verify if a certain `KAnnotatedElement` has an annotation or not
2018-12-26 18:24:10 -02:00
parent 3a33f68fc9
commit a342f844b8
2 changed files with 32 additions and 0 deletions
@@ -26,3 +26,10 @@ import kotlin.reflect.*
 inline fun <reified T : Annotation> KAnnotatedElement.findAnnotation(): T? =
        @Suppress("UNCHECKED_CAST")
        annotations.firstOrNull { it is T } as T?
+
+/**
+ * Returns true if this element is annotated with [T], false otherwise
+ */
+@SinceKotlin("1.4")
+inline fun <reified T : Annotation> KAnnotatedElement.hasAnnotation(): Boolean =
+        findAnnotation<T>() != null