From 6b509bd43fbf6012665ed5a30f38cafa4c665d51 Mon Sep 17 00:00:00 2001
From: Peter Kovacs <peter@kovax.org>
Date: Wed, 21 Jun 2023 11:59:44 -0400
Subject: [PATCH] Define `Node.lazy` to lazily evaluate node contents

---
 Sources/Plot/API/Node.swift | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Sources/Plot/API/Node.swift b/Sources/Plot/API/Node.swift
index 245883e..e957eb4 100644
--- a/Sources/Plot/API/Node.swift
+++ b/Sources/Plot/API/Node.swift
@@ -159,6 +159,14 @@ public extension Node {
     static func components(@ComponentBuilder _ content: () -> Component) -> Node {
         .component(content())
     }
+
+    /// Create a node that lazily evaluates its contents at rendering time.
+    /// - parameter closure: A closure which evaluates to the contents of this node
+    static func `lazy`(_ closure: @escaping () -> Node ) -> Node {
+        Node { renderer in
+            closure().rendering(&renderer)
+        }
+    }
 }
 
 internal extension Node where Context: DocumentFormat {