codegen: Report internal error for unsupported collection type in foreach

diff --git a/codegen/valaccodecontrolflowmodule.vala b/codegen/valaccodecontrolflowmodule.vala
index df31fcef31b8d591d794e40aaa5278839007baaa..dbf64b75919b60c890c2c80f7b2a9516a6b42391 100644 (file)
--- a/codegen/valaccodecontrolflowmodule.vala
+++ b/codegen/valaccodecontrolflowmodule.vala
@@ -338,6 +338,10 @@ public abstract class Vala.CCodeControlFlowModule : CCodeMethodModule {
                        stmt.body.emit (this);
 
                        ccode.close ();
+               } else {
+                       Report.error (stmt.source_reference, "internal error: unsupported collection type");
+                       stmt.error = true;
+                       return;
                }
 
                foreach (LocalVariable local in stmt.get_local_variables ()) {