Add static inline func for doing a VM-null check.

MoarVM · Apr 29, 2014 · 2de460c · 2de460c
1 parent 0487e37
commit 2de460c
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/6model/reprs/MVMNull.h b/src/6model/reprs/MVMNull.h
@@ -5,3 +5,8 @@ struct MVMNull {
 
 /* Function for REPR setup. */
 const MVMREPROps * MVMNull_initialize(MVMThreadContext *tc);
+
+/* Macro for VM null checks. */
+MVM_STATIC_INLINE MVMint64 MVM_is_null(MVMThreadContext *tc, MVMObject *check) {
+    return !check || check == tc->instance->VMNull;
+}