add sanity check

r-spatial · Jan 19, 2025 · 1b0e9d8 · 1b0e9d8
1 parent 8c7257e
commit 1b0e9d8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/sfc-sfg.cpp b/src/sfc-sfg.cpp
@@ -49,6 +49,9 @@ List sfc_unique_sfg_dims_and_types(List sfc) {
 			class_dim.insert("XYZM");
 		}
 
+		if (!Rf_inherits(item, "sfg"))
+			stop("object(s) should be of class 'sfg'");
+
 		if (Rf_inherits(item, "POINT")) {
 			class_type.insert("POINT");
 			continue;