Ensure closures live on the heap

1 files changed, 3 insertions, 0 deletions

diff --git a/src/bytecode/vm.h b/src/bytecode/vm.h
index 4ff9743..a02bdd1 100755
--- a/src/bytecode/vm.h
+++ b/src/bytecode/vm.h
@@ -189,7 +189,10 @@ vm_interpret(VM *vm) {
                 array_push(vm->stack, frame->closure->values[idx]);
             } break;
             case OP_CAPTURE_LOCAL: {
+                // This is a closure with captured variables. We need a copy
+                // of it that lives on the heap.
                 Object proc = array_pop(vm->stack);
+                proc = make_lambda(proc.closure->chunk);
                 ssize_t n_captured = AS_FIXNUM(array_pop(vm->stack));
                 for (ssize_t i = 0; i < n_captured; i++) {
                     Object value = array_pop(vm->stack);