add -D flag for development

1 files changed, 13 insertions, 2 deletions

diff --git a/worker.go b/worker.go
index 5ae69c2..e7d76e4 100644
--- a/worker.go
+++ b/worker.go
@@ -40,6 +40,7 @@ type Worker struct {
 	routes map[string]LuaRef
 	started bool
 	mu sync.Mutex
+	repl *LuaRef
 }
 
 // NewWorker creates a new instance of Worker type.
@@ -167,10 +168,16 @@ func (w *Worker) Listen(queue chan *HTTPRequest) {
 
 		err = l.PCall(1, 3, -3)
 		if err != nil {
+			var body string
+			if debug {
+				body = err.Error()
+			} else {
+				body = "server error"
+			}
 			r.result <- &HTTPResponse{
 				Code: 500,
 				Headers: make(map[string]string),
-				Body: "server error",
+				Body: body,
 			}
 			log.Println("could not process request:\n" + err.Error())
 			return
@@ -234,7 +241,11 @@ outer:
 func (w *Worker) Eval(code string) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()
-	defer w.lua.RestoreStackFunc()()
+	if w.repl != nil {
+		w.lua.PushFromRef(*w.repl)
+		w.lua.PushString(code)
+		return w.lua.PCall(1, 0, 0)
+	}
 	return w.lua.LoadString(code)
 }