From feb8981a95988434506bad9864498e2ff1ff9243 Mon Sep 17 00:00:00 2001
From: Robin Voetter <robin@voetter.nl>
Date: Wed, 16 Mar 2022 15:38:30 +0100
Subject: gdb: add slice, multi array list, and array hash map printers

---
 lib/std/multi_array_list.zig | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'lib/std/multi_array_list.zig')

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;
+            }
+        }
     };
 }
 
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