From 1e2b02920b0fd1cfa0c86d53a89864db8f9d4d07 Mon Sep 17 00:00:00 2001
From: Bjerg <onbjerg@users.noreply.github.com>
Date: Thu, 12 May 2022 23:47:38 +0200
Subject: [PATCH] fix: make ast node ids optional (#1254)

---
 ethers-solc/src/artifacts/ast.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ethers-solc/src/artifacts/ast.rs b/ethers-solc/src/artifacts/ast.rs
index 91f3a6aa..236c3bdb 100644
--- a/ethers-solc/src/artifacts/ast.rs
+++ b/ethers-solc/src/artifacts/ast.rs
@@ -27,7 +27,8 @@ pub struct Ast {
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub struct Node {
     /// The node ID.
-    pub id: usize,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub id: Option<usize>,
 
     /// The node type.
     #[serde(rename = "nodeType")]