From 7573f68df3b71d3c5e73b566b405c798cecc7fb7 Mon Sep 17 00:00:00 2001
From: Lea Anthony <lea.anthony@gmail.com>
Date: Sun, 31 Jan 2021 15:35:33 +1100
Subject: [PATCH] Add argument guard for methods

---
 v2/internal/binding/boundMethod.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/v2/internal/binding/boundMethod.go b/v2/internal/binding/boundMethod.go
index 30b72af9..f6ffdb60 100644
--- a/v2/internal/binding/boundMethod.go
+++ b/v2/internal/binding/boundMethod.go
@@ -30,6 +30,9 @@ func (b *BoundMethod) OutputCount() int {
 func (b *BoundMethod) ParseArgs(args []json.RawMessage) ([]interface{}, error) {
 
 	result := make([]interface{}, b.InputCount())
+	if len(args) != b.InputCount() {
+		return nil, fmt.Errorf("received %d arguments to method '%s', expected %d", len(args), b.Name, b.InputCount())
+	}
 	for index, arg := range args {
 		typ := b.Inputs[index].reflectType
 		inputValue := reflect.New(typ).Interface()