1 files changed, 48 insertions, 0 deletions
diff --git a/tests/debuginfo/issue-22656.rs b/tests/debuginfo/issue-22656.rs
new file mode 100644
index 000000000..f28656627
--- /dev/null
+++ b/tests/debuginfo/issue-22656.rs
@@ -0,0 +1,48 @@
+// This test makes sure that the LLDB pretty printer does not throw an exception
+// when trying to handle a Vec<> or anything else that contains zero-sized
+// fields.
+
+// min-lldb-version: 310
+// ignore-gdb
+
+// compile-flags:-g
+
+// === LLDB TESTS ==================================================================================
+// lldb-command:run
+
+// lldb-command:print v
+// lldbg-check:[...]$0 = size=3 { [0] = 1 [1] = 2 [2] = 3 }
+// lldbr-check:(alloc::vec::Vec<i32>) v = size=3 { [0] = 1 [1] = 2 [2] = 3 }
+// lldb-command:print zs
+// lldbg-check:[...]$1 = { x = y = 123 z = w = 456 }
+// lldbr-check:(issue_22656::StructWithZeroSizedField) zs = { x = y = 123 z = w = 456 }
+// lldbr-command:continue
+
+#![allow(unused_variables)]
+#![allow(dead_code)]
+#![feature(omit_gdb_pretty_printer_section)]
+#![omit_gdb_pretty_printer_section]
+
+struct ZeroSizedStruct;
+
+struct StructWithZeroSizedField {
+    x: ZeroSizedStruct,
+    y: u32,
+    z: ZeroSizedStruct,
+    w: u64
+}
+
+fn main() {
+    let v = vec![1,2,3];
+
+    let zs = StructWithZeroSizedField {
+        x: ZeroSizedStruct,
+        y: 123,
+        z: ZeroSizedStruct,
+        w: 456
+    };
+
+    zzz(); // #break
+}
+
+fn zzz() { () }