arg: Add functions to get/set pointer values from/to integers

This allows to reduce some code duplication and again the need to
manually pick the signed type we convert to, leaving this to the
compiler

1 files changed, 14 insertions, 0 deletions

diff --git a/gi/arg-inl.h b/gi/arg-inl.h
index 4e9afb8a..e6492ee5 100644
--- a/gi/arg-inl.h
+++ b/gi/arg-inl.h
@@ -18,6 +18,8 @@
 #include <glib-object.h>  // for GType
 #include <glib.h>         // for gboolean
 
+#include "gi/utils-inl.h"
+
 // GIArgument accessor templates
 //
 // These are intended to make access to the GIArgument union more type-safe and
@@ -186,6 +188,12 @@ inline void gjs_arg_set(GIArgument* arg, ReturnT (*v)(Args...)) {
     gjs_arg_member<void*>(arg) = reinterpret_cast<void*>(v);
 }
 
+template <typename T, GITypeTag TAG = GI_TYPE_TAG_VOID>
+inline std::enable_if_t<std::is_integral_v<T>> gjs_arg_set(GIArgument* arg,
+                                                           void *v) {
+    gjs_arg_set<T, TAG>(arg, gjs_pointer_to_int<T>(v));
+}
+
 template <>
 inline void gjs_arg_set<bool>(GIArgument* arg, bool v) {
     gjs_arg_member<bool>(arg) = !!v;
@@ -214,6 +222,12 @@ template <>
 }
 
 template <typename T, GITypeTag TAG = GI_TYPE_TAG_VOID>
+[[nodiscard]] inline std::enable_if_t<std::is_integral_v<T>, void*>
+gjs_arg_get_as_pointer(GIArgument* arg) {
+    return gjs_int_to_pointer(gjs_arg_get<T, TAG>(arg));
+}
+
+template <typename T, GITypeTag TAG = GI_TYPE_TAG_VOID>
 inline std::enable_if_t<!std::is_pointer_v<T>> gjs_arg_unset(GIArgument* arg) {
     gjs_arg_set<T, TAG>(arg, static_cast<T>(0));
 }