1 files changed, 163 insertions, 0 deletions
diff --git a/src/test/debuginfo/pretty-std-collections.rs b/src/test/debuginfo/pretty-std-collections.rs
new file mode 100644
index 000000000..93597aa7e
--- /dev/null
+++ b/src/test/debuginfo/pretty-std-collections.rs
@@ -0,0 +1,163 @@
+// ignore-windows failing on win32 bot
+// ignore-freebsd: gdb package too new
+// ignore-android: FIXME(#10381)
+// ignore-macos: FIXME(#78665)
+// compile-flags:-g
+
+// The pretty printers being tested here require the patch from
+// https://sourceware.org/bugzilla/show_bug.cgi?id=21763
+// min-gdb-version: 8.1
+
+// min-lldb-version: 310
+
+// === GDB TESTS ===================================================================================
+
+// gdb-command: run
+
+// gdb-command: print btree_set
+// gdb-check:$1 = BTreeSet(size=15) = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}
+
+// gdb-command: print empty_btree_set
+// gdb-check:$2 = BTreeSet(size=0)
+
+// gdb-command: print btree_map
+// gdb-check:$3 = BTreeMap(size=15) = {[0] = 0, [1] = 1, [2] = 2, [3] = 3, [4] = 4, [5] = 5, [6] = 6, [7] = 7, [8] = 8, [9] = 9, [10] = 10, [11] = 11, [12] = 12, [13] = 13, [14] = 14}
+
+// gdb-command: print empty_btree_map
+// gdb-check:$4 = BTreeMap(size=0)
+
+// gdb-command: print option_btree_map
+// gdb-check:$5 = BTreeMap(size=2) = {[false] = [...], [true] = [...]}
+// (abbreviated because both values vary wildly over gdb versions and/or linux distributions)
+
+// gdb-command: print nasty_btree_map
+// gdb-check:$6 = BTreeMap(size=15) = {[0] = pretty_std_collections::MyLeafNode (0), [...]}
+// (abbreviated because it's boring but we need enough elements to include internal nodes)
+
+// gdb-command: print zst_key_btree_map
+// gdb-check:$7 = BTreeMap(size=1) = {[()] = 1}
+
+// gdb-command: print zst_val_btree_map
+// gdb-check:$8 = BTreeMap(size=1) = {[1] = ()}
+
+// gdb-command: print zst_key_val_btree_map
+// gdb-check:$9 = BTreeMap(size=1) = {[()] = ()}
+
+// gdb-command: print vec_deque
+// gdb-check:$10 = VecDeque(size=3) = {5, 3, 7}
+
+// gdb-command: print vec_deque2
+// gdb-check:$11 = VecDeque(size=7) = {2, 3, 4, 5, 6, 7, 8}
+
+// gdb-command: print hash_map
+// gdb-check:$12 = HashMap(size=4) = {[1] = 10, [2] = 20, [3] = 30, [4] = 40}
+
+// gdb-command: print hash_set
+// gdb-check:$13 = HashSet(size=4) = {1, 2, 3, 4}
+
+// === LLDB TESTS ==================================================================================
+
+// lldb-command:run
+
+// lldb-command:print vec_deque
+// lldbg-check:[...]$0 = size=3 { [0] = 5 [1] = 3 [2] = 7 }
+// lldbr-check:(alloc::collections::vec_deque::VecDeque<i32>) vec_deque = size=3 = { [0] = 5 [1] = 3 [2] = 7 }
+
+// lldb-command:print vec_deque2
+// lldbg-check:[...]$1 = size=7 { [0] = 2 [1] = 3 [2] = 4 [3] = 5 [4] = 6 [5] = 7 [6] = 8 }
+// lldbr-check:(alloc::collections::vec_deque::VecDeque<i32>) vec_deque2 = size=7 = { [0] = 2 [1] = 3 [2] = 4 [3] = 5 [4] = 6 [5] = 7 [6] = 8 }
+
+// lldb-command:print hash_map
+// lldbg-check:[...]$2 = size=4 { [0] = { 0 = 1 1 = 10 } [1] = { 0 = 2 1 = 20 } [2] = { 0 = 3 1 = 30 } [3] = { 0 = 4 1 = 40 } }
+// lldbr-check:(std::collections::hash::map::HashMap<u64, u64, [...]>) hash_map = size=4 size=4 { [0] = { 0 = 1 1 = 10 } [1] = { 0 = 2 1 = 20 } [2] = { 0 = 3 1 = 30 } [3] = { 0 = 4 1 = 40 } }
+
+// lldb-command:print hash_set
+// lldbg-check:[...]$3 = size=4 { [0] = 1 [1] = 2 [2] = 3 [3] = 4 }
+// lldbr-check:(std::collections::hash::set::HashSet<u64, [...]>) hash_set = size=4 { [0] = 1 [1] = 2 [2] = 3 [3] = 4 }
+
+#![allow(unused_variables)]
+use std::collections::BTreeMap;
+use std::collections::BTreeSet;
+use std::collections::HashMap;
+use std::collections::HashSet;
+use std::collections::VecDeque;
+use std::hash::{BuildHasherDefault, Hasher};
+
+struct MyLeafNode(i32); // helps to ensure we don't blindly replace substring "LeafNode"
+
+#[derive(Default)]
+struct SimpleHasher { hash: u64 }
+
+impl Hasher for SimpleHasher {
+    fn finish(&self) -> u64 { self.hash }
+    fn write(&mut self, bytes: &[u8]) {}
+    fn write_u64(&mut self, i: u64) { self.hash = i }
+}
+
+fn main() {
+    // BTreeSet
+    let mut btree_set = BTreeSet::new();
+    for i in 0..15 {
+        btree_set.insert(i);
+    }
+
+    let empty_btree_set: BTreeSet<i32> = BTreeSet::new();
+
+    // BTreeMap
+    let mut btree_map = BTreeMap::new();
+    for i in 0..15 {
+        btree_map.insert(i, i);
+    }
+
+    let empty_btree_map: BTreeMap<i32, u32> = BTreeMap::new();
+
+    let mut option_btree_map: BTreeMap<bool, Option<bool>> = BTreeMap::new();
+    option_btree_map.insert(false, None);
+    option_btree_map.insert(true, Some(true));
+
+    let mut nasty_btree_map: BTreeMap<i32, MyLeafNode> = BTreeMap::new();
+    for i in 0..15 {
+        nasty_btree_map.insert(i, MyLeafNode(i));
+    }
+
+    let mut zst_key_btree_map: BTreeMap<(), i32> = BTreeMap::new();
+    zst_key_btree_map.insert((), 1);
+
+    let mut zst_val_btree_map: BTreeMap<i32, ()> = BTreeMap::new();
+    zst_val_btree_map.insert(1, ());
+
+    let mut zst_key_val_btree_map: BTreeMap<(), ()> = BTreeMap::new();
+    zst_key_val_btree_map.insert((), ());
+
+    // VecDeque
+    let mut vec_deque = VecDeque::new();
+    vec_deque.push_back(5);
+    vec_deque.push_back(3);
+    vec_deque.push_back(7);
+
+    // VecDeque where an element was popped.
+    let mut vec_deque2 = VecDeque::new();
+    for i in 1..8 {
+        vec_deque2.push_back(i)
+    }
+    vec_deque2.pop_front();
+    vec_deque2.push_back(8);
+
+    // HashMap
+    let mut hash_map = HashMap::<u64, u64, BuildHasherDefault<SimpleHasher>>::default();
+    for i in 1..5 {
+        hash_map.insert(i, i * 10);
+    }
+
+    // HashSet
+    let mut hash_set = HashSet::<u64, BuildHasherDefault<SimpleHasher>>::default();
+    for i in 1..5 {
+        hash_set.insert(i);
+    }
+
+    zzz(); // #break
+}
+
+fn zzz() {
+    ()
+}