rust-lldb: fix crash when printing empty string

1 files changed, 35 insertions, 0 deletions

diff --git a/src/test/debuginfo/empty-string.rs b/src/test/debuginfo/empty-string.rs
new file mode 100644
index 00000000000..8c5f67a6604
--- /dev/null
+++ b/src/test/debuginfo/empty-string.rs
@@ -0,0 +1,35 @@
+// ignore-windows failing on win32 bot
+// ignore-android: FIXME(#10381)
+// compile-flags:-g
+// min-gdb-version: 7.7
+// min-lldb-version: 310
+
+// === GDB TESTS ===================================================================================
+
+// gdb-command: run
+
+// gdb-command: print empty_string
+// gdb-check:$1 = ""
+
+// gdb-command: print empty_str
+// gdb-check:$2 = ""
+
+// === LLDB TESTS ==================================================================================
+
+// lldb-command: run
+
+// lldb-command: fr v empty_string
+// lldb-check:[...]empty_string = ""
+
+// lldb-command: fr v empty_str
+// lldb-check:[...]empty_str = ""
+
+fn main() {
+    let empty_string = String::new();
+
+    let empty_str = "";
+
+    zzz(); // #break
+}
+
+fn zzz() {}