From d50a762f63d830ec154f6a52a36cc78e98290f04 Mon Sep 17 00:00:00 2001
From: alemi <me@alemi.dev>
Date: Tue, 23 Apr 2024 23:27:01 +0200
Subject: [PATCH] fix(apb): is_empty === len()==0, new is_nothing

basically is_empty on an empty Node::Vec is true, but is_nothing on an
empty Node::Vec is false
---
 apb/src/node.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/apb/src/node.rs b/apb/src/node.rs
index fa1c7d7..b79bd79 100644
--- a/apb/src/node.rs
+++ b/apb/src/node.rs
@@ -37,7 +37,7 @@ impl<T : super::Base> Node<T> {
 		match self {
 			Node::Empty | Node::Link(_) => None,
 			Node::Object(x) => Some(x),
-			Node::Array(v) => v.get(0),
+			Node::Array(v) => v.front(),
 		}
 	}
 
@@ -51,7 +51,7 @@ impl<T : super::Base> Node<T> {
 	}
 
 	/// true only if Node is empty
-	pub fn is_empty(&self) -> bool {
+	pub fn is_nothing(&self) -> bool {
 		matches!(self, Node::Empty)
 	}
 
@@ -70,6 +70,12 @@ impl<T : super::Base> Node<T> {
 		matches!(self, Node::Array(_))
 	}
 
+	/// true only if Node is empty
+	pub fn is_empty(&self) -> bool {
+		self.len() == 0
+	}
+
+
 	/// returns number of contained items (links count as items for len)
 	pub fn len(&self) -> usize {
 		match self {