From cfd20c7a12916f60f41649384272814c334f9d49 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Thu, 30 Aug 2018 05:39:41 +0200
Subject: [PATCH] Add a number for the "error" type by default

---
 passes.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/passes.go b/passes.go
index c57267c7..67e3b3ae 100644
--- a/passes.go
+++ b/passes.go
@@ -94,7 +94,7 @@ func (p *Program) AnalyseCallgraph() {
 // Find all types that are put in an interface.
 func (p *Program) AnalyseInterfaceConversions() {
 	// Clear, if AnalyseTypes has been called before.
-	p.typesWithoutMethods = map[string]int{"interface{}": 0}
+	p.typesWithoutMethods = map[string]int{"interface{}": 0, "error": 1}
 	p.typesWithMethods = map[string]*InterfaceType{}
 
 	for _, f := range p.Functions {