store local variables on the stack

1 files changed, 12 insertions, 3 deletions

diff --git a/src/main.zig b/src/main.zig
index 55b7e0e..d0e94db 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -74,15 +74,24 @@ fn HashMapFormatter(HashMap: type) type {
             options: std.fmt.FormatOptions,
             writer: anytype,
         ) !void {
-            _ = fmt;
+            const k_fmt, const v_fmt = comptime blk: {
+                var fmt_it = std.mem.splitScalar(u8, fmt, ',');
+                const k_fmt = fmt_it.next() orelse "";
+                const v_fmt = fmt_it.next() orelse "";
+                break :blk .{ k_fmt, v_fmt };
+            };
             _ = options;
             try writer.writeAll("{");
             var it = hash_map.iterator();
             var first = true;
             while (it.next()) |kv| {
                 try writer.print(
-                    "{s} {" ++ (if (@TypeOf(kv.key_ptr.*) == []const u8) "s" else "any") ++ "}: {any}",
-                    .{ if (first) "" else ",", kv.key_ptr.*, kv.value_ptr.* },
+                    "{s} {" ++ k_fmt ++ "}: {" ++ v_fmt ++ "}",
+                    .{
+                        if (first) "" else ",",
+                        kv.key_ptr.*,
+                        kv.value_ptr.*,
+                    },
                 );
                 first = false;
             }