Fix: stop execution when trying to slice an unsupported type (#443)

d5 · Feb 25, 2024 · c461a7f · c461a7f
1 parent 47062da
commit c461a7f
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Showing 2 changed files with 2 additions and 0 deletions.
diff --git a/vm.go b/vm.go
@@ -536,6 +536,7 @@ func (v *VM) run() {
 				v.sp++
 			default:
 				v.err = fmt.Errorf("not indexable: %s", left.TypeName())
+				return
 			}
 		case parser.OpCall:
 			numArgs := int(v.curInsts[v.ip+1])

diff --git a/vm_test.go b/vm_test.go
@@ -3638,6 +3638,7 @@ func TestSliceIndex(t *testing.T) {
 	expectError(t, `undefined[:1]`, nil, "Runtime Error: not indexable")
 	expectError(t, `123[-1:2]`, nil, "Runtime Error: not indexable")
 	expectError(t, `{}[:]`, nil, "Runtime Error: not indexable")
+	expectError(t, `a := 123[-1:2] ; a += 1`, nil, "Runtime Error: not indexable")
 }
 
 func expectRun(