Migrate throw evaluator to Kotlin

src/main/kotlin/io/smnp/error/CustomException.kt

@@ -0,0 +1,3 @@
+package io.smnp.error
+
+class CustomException(message: String?) : Exception(message)

src/main/kotlin/io/smnp/evaluation/evaluator/DefaultEvaluator.kt

@@ -9,6 +9,7 @@ class DefaultEvaluator : Evaluator() {
 
     override fun tryToEvaluate(node: Node, environment: Environment): EvaluatorOutput {
         return oneOf(
+            ThrowEvaluator(),
             ExpressionEvaluator()
         ).evaluate(node, environment)
     }

src/main/kotlin/io/smnp/evaluation/evaluator/ThrowEvaluator.kt

@@ -0,0 +1,19 @@
+package io.smnp.evaluation.evaluator
+
+import io.smnp.dsl.ast.model.node.Node
+import io.smnp.dsl.ast.model.node.ThrowNode
+import io.smnp.error.CustomException
+import io.smnp.evaluation.environment.Environment
+import io.smnp.evaluation.model.entity.EvaluatorOutput
+
+class ThrowEvaluator : Evaluator() {
+    override fun supportedNodes() = listOf(ThrowNode::class)
+
+    override fun tryToEvaluate(node: Node, environment: Environment): EvaluatorOutput {
+        val evaluator = ExpressionEvaluator()
+        val valueNode = (node as ThrowNode).value
+        val value = evaluator.evaluate(valueNode, environment)
+
+        throw CustomException(value.value!!.value.toString())
+    }
+}