From 82b7eda88f43969ba9540c19d2246da377787a09 Mon Sep 17 00:00:00 2001
From: wangmengc <wangmengc@uniontech.com>
Date: Fri, 31 May 2024 10:33:45 +0800
Subject: [PATCH] add expr_unwind function

---
 utshell-0.5/r_expr/src/lib.rs | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/utshell-0.5/r_expr/src/lib.rs b/utshell-0.5/r_expr/src/lib.rs
index 8ebfebac..42acca54 100644
--- a/utshell-0.5/r_expr/src/lib.rs
+++ b/utshell-0.5/r_expr/src/lib.rs
@@ -1604,6 +1604,44 @@ unsafe extern "C" fn subexpr(mut expr: *mut libc::c_char) -> intmax_t {
 }
 
 
+#[no_mangle]
+unsafe extern "C" fn expr_unwind() {
+    loop {
+        expr_depth -= 1;
+        if !(expr_depth > 0 as libc::c_int) {
+            break;
+        }
+        if !((**expr_stack.offset(expr_depth as isize)).tokstr).is_null() {
+            sh_xfree(
+                (**expr_stack.offset(expr_depth as isize)).tokstr as *mut libc::c_void,
+                b"../expr.c\0" as *const u8 as *const libc::c_char,
+                308 as libc::c_int,
+            );
+        }
+        if !((**expr_stack.offset(expr_depth as isize)).expression).is_null() {
+            sh_xfree(
+                (**expr_stack.offset(expr_depth as isize)).expression as *mut libc::c_void,
+                b"../expr.c\0" as *const u8 as *const libc::c_char,
+                311 as libc::c_int,
+            );
+        }
+        sh_xfree(
+            *expr_stack.offset(expr_depth as isize) as *mut libc::c_void,
+            b"../expr.c\0" as *const u8 as *const libc::c_char,
+            313 as libc::c_int,
+        );
+    }
+    if expr_depth == 0 as libc::c_int {
+        sh_xfree(
+            *expr_stack.offset(expr_depth as isize) as *mut libc::c_void,
+            b"../expr.c\0" as *const u8 as *const libc::c_char,
+            316 as libc::c_int,
+        );
+    }
+    noeval = 0 as libc::c_int;
+}
+
+
 #[no_mangle]
 unsafe extern "C" fn expr_unwind() {
     loop {
-- 
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