From ee5c4952003efea903affb6b9a4cf4ce68dc3cb2 Mon Sep 17 00:00:00 2001
From: Yingchi Long <i@lyc.dev>
Date: Fri, 11 Aug 2023 14:08:22 +0800
Subject: [PATCH] nixd/AST: handle exceptions for `getValueEval`

---
 nixd/lib/AST/EvalAST.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/nixd/lib/AST/EvalAST.cpp b/nixd/lib/AST/EvalAST.cpp
index 3e94dd7fd..a0a40098f 100644
--- a/nixd/lib/AST/EvalAST.cpp
+++ b/nixd/lib/AST/EvalAST.cpp
@@ -78,7 +78,11 @@ EvalAST::getValueEval(const nix::Expr *Expr,
   if (!OpVAncestor)
     return std::nullopt;
 
-  forceValueDepth(State, *OpVAncestor, 2);
+  // TODO: add tests
+  try {
+    forceValueDepth(State, *OpVAncestor, 2);
+  } catch (...) {
+  }
   return getValue(Expr);
 }