Objective-C layer: Add functions for determining the Objective-C runtime used and for asking for the size of types by typespec.

darcs-hash:197f36840c1568c5b3431833a0118d06729b9247

2 files changed, 50 insertions, 0 deletions

diff --git a/Objective-C/libobjcl.h b/Objective-C/libobjcl.h
index c84dbb9..2ebea37 100644
--- a/Objective-C/libobjcl.h
+++ b/Objective-C/libobjcl.h
@@ -69,3 +69,15 @@ objcl_get_yes (void);
 
 long
 objcl_get_no (void);
+
+const char *
+objcl_get_runtime_type (void);
+
+long
+objcl_sizeof_type (const char *typespec);
+
+long
+objcl_sizeof_return_type (const char *typespec);
+
+long
+objcl_alignof_type (const char *typespec);
diff --git a/Objective-C/libobjcl.m b/Objective-C/libobjcl.m
index 205a998..8c4f3fd 100644
--- a/Objective-C/libobjcl.m
+++ b/Objective-C/libobjcl.m
@@ -248,3 +248,41 @@ objcl_get_no (void)
     fprintf (stderr, "WARNING: objcl_get_no: NO might not fit into a long.\n");
   return NO;
 }
+
+
+const char *
+objcl_get_runtime_type (void)
+{
+#ifdef __NEXT_RUNTIME__
+  return "NeXT";
+#else
+  return "GNU";
+#endif
+}
+
+
+long
+objcl_sizeof_type (const char *typespec)
+{
+  if (sizeof (ssize_t) > sizeof (long))
+    fprintf (stderr, "WARNING: objcl_sizeof_typespec: Size might not fit into a long.\n");
+  return PyObjCRT_SizeOfType (typespec);
+}
+
+
+long
+objcl_sizeof_return_type (const char *typespec)
+{
+  if (sizeof (ssize_t) > sizeof (long))
+    fprintf (stderr, "WARNING: objcl_sizeof_return_typespec: Size might not fit into a long.\n");
+  return PyObjCRT_SizeOfReturnType (typespec);
+}
+
+
+long
+objcl_alignof_type (const char *typespec)
+{
+  if (sizeof (ssize_t) > sizeof (long))
+    fprintf (stderr, "WARNING: objcl_align_typespec: Alignment might not fit into a long.\n");
+  return PyObjCRT_AlignOfType (typespec);
+}