From 1f9da278abc259623f23c1c6a170996a27977ce6 Mon Sep 17 00:00:00 2001
From: Uko Kokņevičs
Date: Fri, 2 Aug 2024 20:15:21 +0300
Subject: Small improvements

---
 src/main/java/lv/enes/orang/NonEmptyList.java  | 7 ++++++-
 src/main/java/lv/enes/orang/ast/Statement.java | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/main/java/lv/enes/orang/NonEmptyList.java b/src/main/java/lv/enes/orang/NonEmptyList.java
index b532a18..860db28 100644
--- a/src/main/java/lv/enes/orang/NonEmptyList.java
+++ b/src/main/java/lv/enes/orang/NonEmptyList.java
@@ -1,13 +1,18 @@
 package lv.enes.orang;
 
+import lombok.EqualsAndHashCode;
+
 import java.util.AbstractList;
 import java.util.List;
 
+@EqualsAndHashCode(callSuper = true)
 public class NonEmptyList<E> extends AbstractList<E> {
 	private final List<E> delegate;
 
 	public NonEmptyList(List<E> delegate) {
-		assert !delegate.isEmpty();
+		if (delegate.isEmpty()) {
+			throw new IllegalArgumentException("Empty list");
+		}
 		this.delegate = List.copyOf(delegate);
 	}
 
diff --git a/src/main/java/lv/enes/orang/ast/Statement.java b/src/main/java/lv/enes/orang/ast/Statement.java
index 62b76bd..0f52fc3 100644
--- a/src/main/java/lv/enes/orang/ast/Statement.java
+++ b/src/main/java/lv/enes/orang/ast/Statement.java
@@ -4,5 +4,5 @@ import lv.enes.orang.OrangRuntimeException;
 import lv.enes.orang.Scope;
 
 public interface Statement {
-	Scope runStatement(Scope scope) throws OrangRuntimeException, OrangRuntimeException;
+	Scope runStatement(Scope scope) throws OrangRuntimeException;
 }
-- 
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