From e29ae58a9c75d9249dedc79881c6928ef8784163 Mon Sep 17 00:00:00 2001
From: Greg <gmp@wow.st>
Date: Fri, 31 May 2019 12:42:52 -0400
Subject: [PATCH] Add experimental "arc" directive to nswrap.yaml to experiment
 with enabling Objective-C automatic reference counting. Bindings currently
 will not compile with this turned on.

---
 main.go      |  5 +++++
 wrap/main.go | 16 ++++++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index c6d589d..8810ee4 100644
--- a/main.go
+++ b/main.go
@@ -33,6 +33,8 @@ type conf struct {
 	Sysimports []string
 	Pragma []string
 	Vaargs int
+	//Arc flag for debugging only, builds will break
+	Arc bool
 }
 
 var Config conf
@@ -190,6 +192,9 @@ func Start() (err error) {
 	if Config.Positions {
 		ast.TrackPositions = true
 	}
+	if Config.Arc {
+		wrap.Arc = true
+	}
 	//NOTE: converting in parallel is slower on my system
 	//nodes := convertLinesToNodesParallel(lines)
 	nodes := convertLinesToNodes(lines)
diff --git a/wrap/main.go b/wrap/main.go
index 8f4e7c2..33e340a 100644
--- a/wrap/main.go
+++ b/wrap/main.go
@@ -15,6 +15,8 @@ import (
 
 var (
 	Debug = false
+// Arc flag is for debugging only, your builds will break if you turn it on
+	Arc = false
 )
 
 type Wrapper struct {
@@ -55,9 +57,13 @@ func NewWrapper(debug bool) *Wrapper {
 		ProcessedClassMethods: map[string]bool{},
 		Vaargs: 16,
 	}
+	arc := " -fno-objc-arc"
+	if Arc {
+		arc = " -fobjc-arc"
+	}
 	ret.cgoFlags.WriteString(fmt.Sprintf(`/*
-#cgo CFLAGS: -x objective-c
-`))
+#cgo CFLAGS: -x objective-c%s
+`,arc))
 	ret.goTypes.WriteString(`
 type Id struct {
 	ptr unsafe.Pointer
@@ -432,6 +438,12 @@ func (w *Wrapper) AddProtocol(n *ast.ObjCProtocolDecl) {
 	for _,c := range n.Children() {
 		switch x := c.(type) {
 		case *ast.ObjCMethodDecl:
+			if Arc {
+				switch x.Name {
+				case "retain","release","autorelease":
+					continue
+				}
+			}
 			if x.ClassMethod {
 				w.AddMethod(p.ClassMethods,x)
 			} else {