From 81d8a2d50316c769bb5566541862e0e1e5d263f0 Mon Sep 17 00:00:00 2001
From: Simon Cozens <simon@simon-cozens.org>
Date: Thu, 19 Sep 2024 12:35:32 +0100
Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20crash=20if=20there=20isn?=
 =?UTF-8?q?=E2=80=99t=20a=20GDEF=20table?=
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---
 ttj/src/context.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ttj/src/context.rs b/ttj/src/context.rs
index 983eece..84d255f 100644
--- a/ttj/src/context.rs
+++ b/ttj/src/context.rs
@@ -15,7 +15,10 @@ pub(crate) struct SerializationContext<'a> {
 
 impl<'a> SerializationContext<'a> {
     pub fn new(font: &'a FontRef<'a>, names: NameMap) -> Result<Self, ReadError> {
-        let (gdef_regions, gdef_locations) = if let Some(Ok(ivs)) = font.gdef()?.item_var_store() {
+        let (gdef_regions, gdef_locations) = if let Ok(Some(ivs)) = font
+            .gdef()
+            .and_then(|gdef| gdef.item_var_store().transpose())
+        {
             let regions = ivs.variation_region_list()?.variation_regions();
 
             // Find all the peaks