From db59aed14ecb19fe9ab21fba2cdbb06ade12f09b Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Mon, 14 Sep 2020 22:24:55 +0800
Subject: [PATCH] Fix bug in optimizer for if statements with empty true
 blocks.

---
 src/optimize.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/optimize.rs b/src/optimize.rs
index ab4147c3..83f828f4 100644
--- a/src/optimize.rs
+++ b/src/optimize.rs
@@ -149,7 +149,7 @@ fn call_fn_with_constant_arguments(
 fn optimize_stmt(stmt: Stmt, state: &mut State, preserve_result: bool) -> Stmt {
     match stmt {
         // if expr { Noop }
-        Stmt::IfThenElse(x) if matches!(x.1, Stmt::Noop(_)) => {
+        Stmt::IfThenElse(x) if matches!(x.1, Stmt::Noop(_)) && x.2.is_none() => {
             state.set_dirty();
 
             let pos = x.0.position();