From d92a0366638ab7073dfde025da7af96ce3007219 Mon Sep 17 00:00:00 2001
From: CismonX <admin@cismon.net>
Date: Mon, 22 Jun 2020 01:05:36 +0800
Subject: [PATCH] proper handling of runtime errors

---
 src/runtime.c  | 3 ---
 src/vm_stack.c | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/runtime.c b/src/runtime.c
index 1d6db39..c4a1869 100644
--- a/src/runtime.c
+++ b/src/runtime.c
@@ -283,9 +283,6 @@ u6a_runtime_execute(FILE* restrict istream, FILE* restrict ostream) {
                         VM_JMP(0x03);
                     case u6a_vf_c:
                         cont = u6a_vm_stack_save(&stack_ctx);
-                        if (UNLIKELY(cont == NULL)) {
-                            goto runtime_error;
-                        }
                         STACK_PUSH2(VM_VAR_JMP, vm_var_fn_addref(arg));
                         ACC_FN_REF(u6a_vf_c1, POOL_ALLOC2_PTR(cont, ins));
                         VM_JMP(0x03);
diff --git a/src/vm_stack.c b/src/vm_stack.c
index 6335d61..bb02524 100644
--- a/src/vm_stack.c
+++ b/src/vm_stack.c
@@ -45,7 +45,7 @@ vm_stack_dup(struct u6a_vm_stack_ctx* ctx, struct u6a_vm_stack* vs) {
     struct u6a_vm_stack* dup_stack = malloc(size);
     if (UNLIKELY(dup_stack == NULL)) {
         u6a_err_bad_alloc(ctx->err_stage, size);
-        return NULL;
+        U6A_VM_ERR(ctx);
     }
     memcpy(dup_stack, vs, sizeof(struct u6a_vm_stack) + (vs->top + 1) * sizeof(struct u6a_vm_var_fn));
     dup_stack->refcnt = 0;