LibIPC: Add encoder and decoder for AK::OrderedHashMap

Seems like a useful thing to have.
Author: https://github.com/vkoskiv Commit: f2b4c044db Pull-request: https://github.com/SerenityOS/serenity/pull/13421 Reviewed-by: https://github.com/awesomekling Reviewed-by: https://github.com/linusg
2025-09-10 19:46:03 +00:00 · 2022-04-03 00:43:22 +03:00 · 2022-04-03 00:43:22 +03:00 · f2b4c044db · 2024-07-17 14:33:22 +09:00
commit f2b4c044db
parent a8a50a994b
2 changed files with 29 additions and 0 deletions
--- a/Userland/Libraries/LibIPC/Decoder.h
+++ b/Userland/Libraries/LibIPC/Decoder.h
@ -67,6 +67,24 @@ public:
        return {};
    }

+    template<typename K, typename V>
+    ErrorOr<void> decode(OrderedHashMap<K, V>& hashmap)
+    {
+        u32 size;
+        TRY(decode(size));
+        if (size > NumericLimits<i32>::max())
+            return Error::from_string_literal("IPC: Invalid HashMap size"sv);
+
+        for (size_t i = 0; i < size; ++i) {
+            K key;
+            TRY(decode(key));
+            V value;
+            TRY(decode(value));
+            TRY(hashmap.try_set(move(key), move(value)));
+        }
+        return {};
+    }
+
    template<Enum T>
    ErrorOr<void> decode(T& enum_value)
    {