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-rw-r--r--tests/debuginfo/rc_arc.rs145
1 files changed, 145 insertions, 0 deletions
diff --git a/tests/debuginfo/rc_arc.rs b/tests/debuginfo/rc_arc.rs
new file mode 100644
index 00000000000..5d5492d7217
--- /dev/null
+++ b/tests/debuginfo/rc_arc.rs
@@ -0,0 +1,145 @@
+// ignore-windows-gnu: pretty-printers are not loaded
+// compile-flags:-g
+
+// min-gdb-version: 8.1
+// min-cdb-version: 10.0.18317.1001
+
+// === GDB TESTS ==================================================================================
+
+// gdb-command:run
+
+// gdb-command:print rc
+// gdb-check:[...]$1 = Rc(strong=11, weak=1) = {value = 111, strong = 11, weak = 1}
+// gdb-command:print arc
+// gdb-check:[...]$2 = Arc(strong=21, weak=1) = {value = 222, strong = 21, weak = 1}
+
+// === LLDB TESTS ==================================================================================
+
+// lldb-command:run
+
+// lldb-command:print rc
+// lldb-check:[...]$0 = strong=11, weak=1 { value = 111 }
+// lldb-command:print arc
+// lldb-check:[...]$1 = strong=21, weak=1 { data = 222 }
+
+// === CDB TESTS ==================================================================================
+
+// cdb-command:g
+
+// cdb-command:dx rc,d
+// cdb-check:rc,d             : 111 [Type: alloc::rc::Rc<i32>]
+// cdb-check:    [Reference count] : 11 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+
+// cdb-command:dx weak_rc,d
+// cdb-check:weak_rc,d        : 111 [Type: alloc::rc::Weak<i32>]
+// cdb-check:    [Reference count] : 11 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+
+// cdb-command:dx arc,d
+// cdb-check:arc,d            : 222 [Type: alloc::sync::Arc<i32>]
+// cdb-check:    [Reference count] : 21 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+
+// cdb-command:dx weak_arc,d
+// cdb-check:weak_arc,d       : 222 [Type: alloc::sync::Weak<i32>]
+// cdb-check:    [Reference count] : 21 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+
+// cdb-command:dx dyn_rc,d
+// cdb-check:dyn_rc,d         [Type: alloc::rc::Rc<dyn$<core::fmt::Debug> >]
+// cdb-check:    [Reference count] : 31 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+
+// cdb-command:dx dyn_rc_weak,d
+// cdb-check:dyn_rc_weak,d    [Type: alloc::rc::Weak<dyn$<core::fmt::Debug> >]
+// cdb-check:    [Reference count] : 31 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+
+// cdb-command:dx slice_rc,d
+// cdb-check:slice_rc,d       : { len=3 } [Type: alloc::rc::Rc<slice2$<u32> >]
+// cdb-check:    [Length]         : 3 [Type: [...]]
+// cdb-check:    [Reference count] : 41 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+// cdb-check:    [0]              : 1 [Type: u32]
+// cdb-check:    [1]              : 2 [Type: u32]
+// cdb-check:    [2]              : 3 [Type: u32]
+
+// cdb-command:dx slice_rc_weak,d
+// cdb-check:slice_rc_weak,d  : { len=3 } [Type: alloc::rc::Weak<slice2$<u32> >]
+// cdb-check:    [Length]         : 3 [Type: [...]]
+// cdb-check:    [Reference count] : 41 [Type: core::cell::Cell<usize>]
+// cdb-check:    [Weak reference count] : 2 [Type: core::cell::Cell<usize>]
+// cdb-check:    [0]              : 1 [Type: u32]
+// cdb-check:    [1]              : 2 [Type: u32]
+// cdb-check:    [2]              : 3 [Type: u32]
+
+// cdb-command:dx dyn_arc,d
+// cdb-check:dyn_arc,d        [Type: alloc::sync::Arc<dyn$<core::fmt::Debug> >]
+// cdb-check:    [Reference count] : 51 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+
+// cdb-command:dx dyn_arc_weak,d
+// cdb-check:dyn_arc_weak,d   [Type: alloc::sync::Weak<dyn$<core::fmt::Debug> >]
+// cdb-check:    [Reference count] : 51 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+
+// cdb-command:dx slice_arc,d
+// cdb-check:slice_arc,d      : { len=3 } [Type: alloc::sync::Arc<slice2$<u32> >]
+// cdb-check:    [Length]         : 3 [Type: [...]]
+// cdb-check:    [Reference count] : 61 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [0]              : 4 [Type: u32]
+// cdb-check:    [1]              : 5 [Type: u32]
+// cdb-check:    [2]              : 6 [Type: u32]
+
+// cdb-command:dx slice_arc_weak,d
+// cdb-check:slice_arc_weak,d : { len=3 } [Type: alloc::sync::Weak<slice2$<u32> >]
+// cdb-check:    [Length]         : 3 [Type: [...]]
+// cdb-check:    [Reference count] : 61 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [Weak reference count] : 2 [Type: core::sync::atomic::AtomicUsize]
+// cdb-check:    [0]              : 4 [Type: u32]
+// cdb-check:    [1]              : 5 [Type: u32]
+// cdb-check:    [2]              : 6 [Type: u32]
+
+use std::fmt::Debug;
+use std::rc::Rc;
+use std::sync::Arc;
+
+fn main() {
+    let rc = Rc::new(111);
+    inc_ref_count(&rc, 10);
+    let weak_rc = Rc::downgrade(&rc);
+
+    let arc = Arc::new(222);
+    inc_ref_count(&arc, 20);
+    let weak_arc = Arc::downgrade(&arc);
+
+    let dyn_rc: Rc<dyn Debug> = Rc::new(333);
+    inc_ref_count(&dyn_rc, 30);
+    let dyn_rc_weak = Rc::downgrade(&dyn_rc);
+
+    let slice_rc: Rc<[u32]> = Rc::from(vec![1, 2, 3]);
+    inc_ref_count(&slice_rc, 40);
+    let slice_rc_weak = Rc::downgrade(&slice_rc);
+
+    let dyn_arc: Arc<dyn Debug> = Arc::new(444);
+    inc_ref_count(&dyn_arc, 50);
+    let dyn_arc_weak = Arc::downgrade(&dyn_arc);
+
+    let slice_arc: Arc<[u32]> = Arc::from(vec![4, 5, 6]);
+    inc_ref_count(&slice_arc, 60);
+    let slice_arc_weak = Arc::downgrade(&slice_arc);
+
+    zzz(); // #break
+}
+
+fn inc_ref_count<T: Clone>(rc: &T, count: usize) {
+    for _ in 0..count {
+        std::mem::forget(rc.clone());
+    }
+}
+
+fn zzz() {
+    ()
+}