Merge pull request #11191 from Snektron/zig-gdb-improvements

Zig gdb improvements

2 files changed, 28 insertions, 0 deletions

diff --git a/lib/std/hash_map.zig b/lib/std/hash_map.zig
index 8a29741d9e..8c4e6b2581 100644
--- a/lib/std/hash_map.zig
+++ b/lib/std/hash_map.zig
@@ -1,4 +1,5 @@
 const std = @import("std.zig");
+const builtin = @import("builtin");
 const assert = debug.assert;
 const autoHash = std.hash.autoHash;
 const debug = std.debug;
@@ -1576,6 +1577,19 @@ pub fn HashMapUnmanaged(
             self.metadata = null;
             self.available = 0;
         }
+
+        /// This function is used in tools/zig-gdb.py to fetch the header type to facilitate
+        /// fancy debug printing for this type.
+        fn gdbHelper(self: *Self, hdr: *Header) void {
+            _ = self;
+            _ = hdr;
+        }
+
+        comptime {
+            if (builtin.mode == .Debug) {
+                _ = gdbHelper;
+            }
+        }
     };
 }
 
diff --git a/lib/std/multi_array_list.zig b/lib/std/multi_array_list.zig
index 53eb8fa352..2af723d3a5 100644
--- a/lib/std/multi_array_list.zig
+++ b/lib/std/multi_array_list.zig
@@ -1,4 +1,5 @@
 const std = @import("std.zig");
+const builtin = @import("builtin");
 const assert = std.debug.assert;
 const meta = std.meta;
 const mem = std.mem;
@@ -433,6 +434,19 @@ pub fn MultiArrayList(comptime S: type) type {
         fn FieldType(field: Field) type {
             return meta.fieldInfo(S, field).field_type;
         }
+
+        /// This function is used in tools/zig-gdb.py to fetch the child type to facilitate
+        /// fancy debug printing for this type.
+        fn gdbHelper(self: *Self, child: *S) void {
+            _ = self;
+            _ = child;
+        }
+
+        comptime {
+            if (builtin.mode == .Debug) {
+                _ = gdbHelper;
+            }
+        }
     };
 }