codegen: Perform required casts for generic types of return-values and in/out-parameters

Found by -Werror=int-conversion

Fixes https://gitlab.gnome.org/GNOME/vala/issues/1407

1 files changed, 127 insertions, 0 deletions

diff --git a/tests/generics/method-return-cast.c-expected b/tests/generics/method-return-cast.c-expected
new file mode 100644
index 000000000..08e05f365
--- /dev/null
+++ b/tests/generics/method-return-cast.c-expected
@@ -0,0 +1,127 @@
+/* generics_method_return_cast.c generated by valac, the Vala compiler
+ * generated from generics_method_return_cast.vala, do not modify */
+
+#include <glib.h>
+#include <glib-object.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if !defined(VALA_EXTERN)
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define VALA_EXTERN __declspec(dllexport) extern
+#elif __GNUC__ >= 4
+#define VALA_EXTERN __attribute__((visibility("default"))) extern
+#else
+#define VALA_EXTERN extern
+#endif
+#endif
+
+#define _g_free0(var) (var = (g_free (var), NULL))
+#define _vala_assert(expr, msg) if G_LIKELY (expr) ; else g_assertion_message_expr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, msg);
+#define _vala_return_if_fail(expr, msg) if G_LIKELY (expr) ; else { g_return_if_fail_warning (G_LOG_DOMAIN, G_STRFUNC, msg); return; }
+#define _vala_return_val_if_fail(expr, msg, val) if G_LIKELY (expr) ; else { g_return_if_fail_warning (G_LOG_DOMAIN, G_STRFUNC, msg); return val; }
+#define _vala_warn_if_fail(expr, msg) if G_LIKELY (expr) ; else g_warn_message (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, msg);
+
+VALA_EXTERN gboolean get_bool (void);
+VALA_EXTERN gpointer minim_b (GType t_type,
+                  GBoxedCopyFunc t_dup_func,
+                  GDestroyNotify t_destroy_func);
+VALA_EXTERN guint32 get_uint32 (void);
+VALA_EXTERN gpointer minim_u (GType t_type,
+                  GBoxedCopyFunc t_dup_func,
+                  GDestroyNotify t_destroy_func);
+VALA_EXTERN gchar* get_string (void);
+VALA_EXTERN gpointer minim_s (GType t_type,
+                  GBoxedCopyFunc t_dup_func,
+                  GDestroyNotify t_destroy_func);
+static void _vala_main (void);
+
+gboolean
+get_bool (void)
+{
+	gboolean result;
+	result = TRUE;
+	return result;
+}
+
+gpointer
+minim_b (GType t_type,
+         GBoxedCopyFunc t_dup_func,
+         GDestroyNotify t_destroy_func)
+{
+	gpointer result;
+	result = (gpointer) ((gintptr) get_bool ());
+	return result;
+}
+
+guint32
+get_uint32 (void)
+{
+	guint32 result;
+	result = (guint32) 42U;
+	return result;
+}
+
+gpointer
+minim_u (GType t_type,
+         GBoxedCopyFunc t_dup_func,
+         GDestroyNotify t_destroy_func)
+{
+	gpointer result;
+	result = (gpointer) ((guintptr) get_uint32 ());
+	return result;
+}
+
+gchar*
+get_string (void)
+{
+	gchar* _tmp0_;
+	gchar* result;
+	_tmp0_ = g_strdup ("bar");
+	result = _tmp0_;
+	return result;
+}
+
+gpointer
+minim_s (GType t_type,
+         GBoxedCopyFunc t_dup_func,
+         GDestroyNotify t_destroy_func)
+{
+	gchar* _tmp0_;
+	gpointer result;
+	_tmp0_ = get_string ();
+	result = _tmp0_;
+	return result;
+}
+
+static void
+_vala_main (void)
+{
+	{
+		gpointer _tmp0_;
+		_tmp0_ = minim_b (G_TYPE_BOOLEAN, NULL, NULL);
+		_vala_assert (((gboolean) ((gintptr) _tmp0_)) == TRUE, "minim_b<bool> () == true");
+	}
+	{
+		gpointer _tmp1_;
+		_tmp1_ = minim_u (G_TYPE_UINT, NULL, NULL);
+		_vala_assert (((guint32) ((guintptr) _tmp1_)) == ((guint32) 42U), "minim_u<uint32> () == 42U");
+	}
+	{
+		gpointer _tmp2_;
+		gchar* _tmp3_;
+		_tmp2_ = minim_s (G_TYPE_STRING, (GBoxedCopyFunc) g_strdup, (GDestroyNotify) g_free);
+		_tmp3_ = (gchar*) _tmp2_;
+		_vala_assert (g_strcmp0 (_tmp3_, "bar") == 0, "minim_s<string> () == \"bar\"");
+		_g_free0 (_tmp3_);
+	}
+}
+
+int
+main (int argc,
+      char ** argv)
+{
+	_vala_main ();
+	return 0;
+}
+