From 5c837abc6c7fabf652c7abdb2e043b4b1003877c Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Sun, 12 Jul 2026 22:13:36 +0100
Subject: [PATCH] fx.collections: hashtable: implement clone()

---
 fx.collections/hashtable.c | 51 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/fx.collections/hashtable.c b/fx.collections/hashtable.c
index c5ee984..73d2cc1 100644
--- a/fx.collections/hashtable.c
+++ b/fx.collections/hashtable.c
@@ -546,6 +546,56 @@ static fx_status to_string(
 	return FX_SUCCESS;
 }
 
+static fx_status clone(const fx_value *src_v, fx_value *dest_v)
+{
+	fx_hashtable *src_table = NULL, *dest_table = NULL;
+	fx_value_get_object(src_v, &src_table);
+
+	dest_table = fx_hashtable_create();
+	if (!dest_table) {
+		return FX_ERR_NO_MEMORY;
+	}
+
+	struct fx_hashtable_p *src_p
+		= fx_object_get_private(src_table, FX_TYPE_HASHTABLE);
+	struct fx_hashtable_p *dest_p
+		= fx_object_get_private(dest_table, FX_TYPE_HASHTABLE);
+	dest_p->t_count = src_p->t_count;
+	dest_p->t_max_index = src_p->t_max_index;
+	size_t capacity = primes[dest_p->t_max_index];
+	dest_p->t_items = calloc(capacity, sizeof *dest_p->t_items);
+	if (!dest_p->t_items) {
+		fx_hashtable_unref(dest_table);
+		return FX_ERR_NO_MEMORY;
+	}
+
+	for (size_t i = 0; i < capacity; i++) {
+		if (!src_p->t_items[i].i_item) {
+			continue;
+		}
+
+		fx_hashtable *new_item
+			= fx_object_create(FX_TYPE_HASHTABLE_ITEM);
+		if (!new_item) {
+			fx_hashtable_unref(dest_table);
+			return FX_ERR_NO_MEMORY;
+		}
+
+		struct fx_hashtable_item_p *src_item_p = fx_object_get_private(
+			src_p->t_items[i].i_item,
+			FX_TYPE_HASHTABLE_ITEM);
+		struct fx_hashtable_item_p *new_item_p = fx_object_get_private(
+			new_item,
+			FX_TYPE_HASHTABLE_ITEM);
+		new_item_p->i_key = fx_value_copy_return(src_item_p->i_key);
+		new_item_p->i_value = fx_value_copy_return(src_item_p->i_value);
+		dest_p->t_items[i].i_item = new_item;
+	}
+
+	*dest_v = FX_VALUE_OBJECT(dest_table);
+	return FX_SUCCESS;
+}
+
 static fx_status get_key(
 	const fx_value *item_value,
 	const fx_property *prop,
@@ -655,6 +705,7 @@ static const fx_value *iterator_get_value(const fx_iterator *obj)
 FX_TYPE_CLASS_BEGIN(fx_hashtable)
 	FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_object, FX_TYPE_OBJECT)
 		FX_INTERFACE_ENTRY(to_string) = to_string;
+		FX_INTERFACE_ENTRY(clone) = clone;
 	FX_TYPE_VTABLE_INTERFACE_END(fx_object, FX_TYPE_OBJECT)
 
 	FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_iterable, FX_TYPE_ITERABLE)