1 files changed, 52 insertions, 0 deletions
diff --git a/src/civetweb/src/third_party/duktape-1.5.2/src-separate/duk_hobject_misc.c b/src/civetweb/src/third_party/duktape-1.5.2/src-separate/duk_hobject_misc.c
new file mode 100644
index 000000000..8916577a4
--- /dev/null
+++ b/src/civetweb/src/third_party/duktape-1.5.2/src-separate/duk_hobject_misc.c
@@ -0,0 +1,52 @@
+/*
+ *  Misc support functions
+ */
+
+#include "duk_internal.h"
+
+DUK_INTERNAL duk_bool_t duk_hobject_prototype_chain_contains(duk_hthread *thr, duk_hobject *h, duk_hobject *p, duk_bool_t ignore_loop) {
+	duk_uint_t sanity;
+
+	DUK_ASSERT(thr != NULL);
+
+	/* False if the object is NULL or the prototype 'p' is NULL.
+	 * In particular, false if both are NULL (don't compare equal).
+	 */
+	if (h == NULL || p == NULL) {
+		return 0;
+	}
+
+	sanity = DUK_HOBJECT_PROTOTYPE_CHAIN_SANITY;
+	do {
+		if (h == p) {
+			return 1;
+		}
+
+		if (sanity-- == 0) {
+			if (ignore_loop) {
+				break;
+			} else {
+				DUK_ERROR_RANGE(thr, DUK_STR_PROTOTYPE_CHAIN_LIMIT);
+			}
+		}
+		h = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h);
+	} while (h);
+
+	return 0;
+}
+
+DUK_INTERNAL void duk_hobject_set_prototype_updref(duk_hthread *thr, duk_hobject *h, duk_hobject *p) {
+#ifdef DUK_USE_REFERENCE_COUNTING
+	duk_hobject *tmp;
+
+	DUK_ASSERT(h);
+	tmp = DUK_HOBJECT_GET_PROTOTYPE(thr->heap, h);
+	DUK_HOBJECT_SET_PROTOTYPE(thr->heap, h, p);
+	DUK_HOBJECT_INCREF_ALLOWNULL(thr, p);  /* avoid problems if p == h->prototype */
+	DUK_HOBJECT_DECREF_ALLOWNULL(thr, tmp);
+#else
+	DUK_ASSERT(h);
+	DUK_UNREF(thr);
+	DUK_HOBJECT_SET_PROTOTYPE(thr->heap, h, p);
+#endif
+}