fx.collections: replace fx_dict with fx_hashtable

fx.collections/test/hashtables.c

@@ -0,0 +1,49 @@
+#include <fx/collections/hashtable.h>
+#include <fx/int.h>
+#include <fx/reflection/type.h>
+#include <fx/stream.h>
+#include <stdio.h>
+
+int main(void)
+{
+	fx_hashtable *ht = fx_hashtable_create();
+	fx_hashtable_put(ht, &FX_INT(32), &FX_INT(64));
+	fx_hashtable_put(ht, &FX_CSTR("hello"), &FX_INT(128));
+
+	const fx_value *v = fx_hashtable_get(ht, &FX_INT(32));
+	if (v) {
+		printf("32= ");
+		fx_value_to_string(v, fx_stdout, NULL);
+		printf("\n");
+	} else {
+		printf("no value\n");
+	}
+
+	fx_iterator *it = fx_hashtable_begin(ht);
+	fx_foreach(val, it)
+	{
+		fx_hashtable_item *item = NULL;
+		fx_value_get_object(&val, &item);
+		printf("item %p\n", item);
+		fx_value key, value;
+		key = fx_hashtable_item_get_key(item);
+		value = fx_hashtable_item_get_value(item);
+
+		fx_iterator *prop_it = fx_type_get_properties(
+			fx_type_get_by_id(FX_TYPE_HASHTABLE_ITEM));
+		fx_foreach(prop_val, prop_it)
+		{
+			fx_property *prop;
+			fx_value_get_object(&prop_val, &prop);
+			printf("%s = ", fx_property_get_name(prop));
+			fx_value value = FX_VALUE_EMPTY;
+			fx_property_get_value(prop, &val, &value);
+			fx_value_to_string(&value, fx_stdout, NULL);
+			printf("\n");
+		}
+		fx_iterator_unref(prop_it);
+	}
+	fx_iterator_unref(it);
+
+	return 0;
+}