From abe4753ca121f7e303959905e1868d3a809c511a Mon Sep 17 00:00:00 2001
From: Taichi Sasaki <tchsskk@gmail.com>
Date: Thu, 16 May 2024 23:23:52 +0900
Subject: [PATCH] Report only one error using eval.TooManyArgError()

---
 dsl/http.go        | 1 +
 dsl/payload.go     | 2 ++
 dsl/result_type.go | 1 +
 dsl/server.go      | 1 +
 4 files changed, 5 insertions(+)

diff --git a/dsl/http.go b/dsl/http.go
index 632cda8e60..0ddd44034b 100644
--- a/dsl/http.go
+++ b/dsl/http.go
@@ -745,6 +745,7 @@ func Param(name string, args ...any) {
 func MapParams(args ...any) {
 	if len(args) > 1 {
 		eval.TooManyArgError()
+		return
 	}
 	e, ok := eval.Current().(*expr.HTTPEndpointExpr)
 	if !ok {
diff --git a/dsl/payload.go b/dsl/payload.go
index dded16e9d4..8dc9a41da7 100644
--- a/dsl/payload.go
+++ b/dsl/payload.go
@@ -71,6 +71,7 @@ import (
 func Payload(val any, args ...any) {
 	if len(args) > 2 {
 		eval.TooManyArgError()
+		return
 	}
 	e, ok := eval.Current().(*expr.MethodExpr)
 	if !ok {
@@ -125,6 +126,7 @@ func Payload(val any, args ...any) {
 func StreamingPayload(val any, args ...any) {
 	if len(args) > 2 {
 		eval.TooManyArgError()
+		return
 	}
 	e, ok := eval.Current().(*expr.MethodExpr)
 	if !ok {
diff --git a/dsl/result_type.go b/dsl/result_type.go
index de883d2864..9f443acf99 100644
--- a/dsl/result_type.go
+++ b/dsl/result_type.go
@@ -99,6 +99,7 @@ func ResultType(identifier string, args ...any) *expr.ResultTypeExpr {
 				}
 				if len(args) > 2 {
 					eval.TooManyArgError()
+					return nil
 				}
 			}
 		}
diff --git a/dsl/server.go b/dsl/server.go
index f230c71af0..57dc2684ef 100644
--- a/dsl/server.go
+++ b/dsl/server.go
@@ -59,6 +59,7 @@ import (
 func Server(name string, fn ...func()) *expr.ServerExpr {
 	if len(fn) > 1 {
 		eval.TooManyArgError()
+		return nil
 	}
 	api, ok := eval.Current().(*expr.APIExpr)
 	if !ok {