Autorelease all objective-C objects constructed using "alloc".

Clean up type-related comments in generated code. Do not use
pointers to Go interfaces as receivers, use pointer to Id instead.

examples/app/main.go

@@ -18,31 +18,33 @@ func nsmgr() {
 		0,
 		nil,
 	)
-	w.SetTitle(ns.NSStringWithGoString("Hi World"))
+	nst := ns.NSStringWithGoString
+	w.SetTitle(nst("Hi World"))
 	w.MakeKeyAndOrderFront(w)
 	w.SetAlphaValue(0.85)
-	m1 := ns.NSMenuAlloc().InitWithTitle(ns.NSStringWithGoString("Main"))
+	m1 := ns.NSMenuAlloc().InitWithTitle(nst("Main"))
 	appItem := ns.NSMenuItemAlloc()
 	fileItem := ns.NSMenuItemAlloc()
 	m1.AddItem(appItem)
 	m1.AddItem(fileItem)
 
-	appMenu := ns.NSMenuAlloc().InitWithTitle(ns.NSStringWithGoString("App"))
-	fileMenu := ns.NSMenuAlloc().InitWithTitle(ns.NSStringWithGoString("File"))
+	appMenu := ns.NSMenuAlloc().InitWithTitle(nst("App"))
+	fileMenu := ns.NSMenuAlloc().InitWithTitle(nst("File"))
 	m1.SetSubmenu(appMenu, appItem)
 	m1.SetSubmenu(fileMenu, fileItem)
 
 	s := ns.NSStringWithGoString("")
-	appMenu.AddItemWithTitle(ns.NSStringWithGoString("About"), nil, s)
-	appMenu.AddItemWithTitle(ns.NSStringWithGoString("Preferences"), nil, s)
-	appMenu.AddItemWithTitle(ns.NSStringWithGoString("Quit"),ns.Selector("terminate:"), ns.NSStringWithGoString("q"))
+	appMenu.AddItemWithTitle(nst("About"), nil, s)
+	appMenu.AddItemWithTitle(nst("Preferences"), nil, s)
+	appMenu.AddItemWithTitle(nst("Quit"),ns.Selector("terminate:"), nst("q"))
 	a.SetMainMenu(m1)
-	fileMenu.AddItemWithTitle(ns.NSStringWithGoString("Open"), nil, s)
-	fileMenu.AddItemWithTitle(ns.NSStringWithGoString("New"), nil, s)
+	fileMenu.AddItemWithTitle(nst("Open"), nil, s)
+	fileMenu.AddItemWithTitle(nst("New"), nil, s)
 
 	a.SetMainMenu(m1)
 
-	b1 := ns.NSButtonWithTitle(ns.NSStringWithGoString("push"),s,nil)
+	b1 := ns.NSButtonWithTitle(nst("push"),s,nil)
+	b1.SetFrame(ns.NSMakeRect(0,550,100,50))
 	w.ContentView().AddSubview(&b1.NSView,ns.NSWindowAbove,nil)
 	a.Run()
 }

types/convert.go

@@ -250,18 +250,15 @@ func (t *Type) GoTypeDecl() string {
 	case "", "Void":
 		return ""
 	default:
-		extra := t.Node.CtypeSimplified()
 		var cgt string
 		if td := tp.Typedef(); td != nil {
 			cgt = td.CGoType()
-			extra = "typedef " + td.Node.Ctype()
 		} else {
 			cgt = tp.CGoType()
 		}
 		return fmt.Sprintf(`
-//%s (%s)
 type %s %s
-`,t.Node.Ctype(),extra,gt,cgt)
+`,gt,cgt)
 	}
 }
 
@@ -276,21 +273,19 @@ func (t *Type) GoInterfaceDecl() string {
 	if super == "" {
 		goInterfaces[gt] = true
 		return fmt.Sprintf(`
-//%s (%s)
 type %s interface {
 	Ptr() unsafe.Pointer
 }
-`,t.Node.Ctype(),t.BaseType().GoType(),gt)
+`,gt)
 	}
 	if IsGoInterface(super) {
 		super = "Id"
 	}
 	return fmt.Sprintf(`
-//%s (%s)
 type %s struct { %s }
 func (o *%s) Ptr() unsafe.Pointer { return unsafe.Pointer(o) }
 func (o *Id) %s() *%s { return (*%s)(unsafe.Pointer(o)) }
-`,t.Node.Ctype(),t.BaseType().GoType(),gt,super,gt,gt,gt,gt)
+`,gt,super,gt,gt,gt,gt)
 }
 
 func (t *Type) IsFunctionPtr() bool {

wrap/main.go

@@ -507,6 +507,9 @@ func (w *Wrapper) processType(tp *types.Type) {
 	}
 	if w.Processed[gt] { return }
 	w.Processed[gt] = true
+	if gt == "NSObject" {
+		w.ObjectHelpers()
+	}
 	if gt == "Char" {
 		w.CharHelpers()
 	}
@@ -528,6 +531,27 @@ func (w *Wrapper) processType(tp *types.Type) {
 	w.goTypes.WriteString(bt.GoTypeDecl())
 }
 
+func (w *Wrapper) ObjectHelpers() {
+	w.goHelpers.WriteString(`
+func (o *Id) Release() {
+	C.release(unsafe.Pointer(o))
+}
+func (o *Id) Autorelease() {
+	C.autorelease(unsafe.Pointer(o))
+}
+`)
+	w.cCode.WriteString(`
+void
+release(void* obj) {
+	[(NSObject*)obj release];
+}
+void
+autorelease(void* obj) {
+	[(NSObject*)obj autorelease];
+}
+`)
+}
+
 func (w *Wrapper) CharHelpers() {
 	w.goHelpers.WriteString(`
 func CharWithGoString(s string) *Char {
@@ -588,8 +612,14 @@ func (w *Wrapper) _processMethod(m *Method,fun bool) {
 		return
 	}
 	gname := strings.Title(m.Name)
+	receiver := ""
 	switch {
 	case !m.ClassMethod:
+		if types.IsGoInterface(m.GoClass) {
+			receiver = "(o *Id) "
+		} else {
+			receiver = "(o *" + m.GoClass + ") "
+		}
 	case m.Type.GoType() != "*" + m.GoClass:
 		gname = m.GoClass + gname
 	default:
@@ -606,10 +636,6 @@ func (w *Wrapper) _processMethod(m *Method,fun bool) {
 			gname = m.GoClass + gname[lens1-i:]
 		}
 	}
-	receiver := ""
-	if !m.ClassMethod {
-		receiver = "(o *" + m.GoClass + ") "
-	}
 	cname := m.Name
 	if m.Class != "" {
 		cname = m.Class + "_" + cname
@@ -642,9 +668,8 @@ func (w *Wrapper) _processMethod(m *Method,fun bool) {
 		gname = "Get" + gname
 	}
 	w.goCode.WriteString(fmt.Sprintf(`
-//%s
 func %s%s(%s) %s {
-`,m.Type.CType(),receiver,gname,gplist,grtype))
+`,receiver,gname,gplist,grtype))
 	lparm := len(tps)-1
 	if len(tps) > 0 && tps[lparm].Variadic {
 		vn := ns[lparm]
@@ -658,7 +683,7 @@ func %s%s(%s) %s {
 `,vn,w.VaArgs,vn,vn))
 	}
 	w.goCode.WriteString(`	` +
-		types.GoToC(cname,ns,m.Type,tps) + "\n}\n\n")
+		types.GoToC(cname,ns,m.Type,tps) + "\n}\n")
 
 	cret := ""
 	if !m.isVoid() {
@@ -787,12 +812,22 @@ func %sAlloc() *%s {
 }
 `,i.GoName,i.GoName,i.GoName,i.Name))
 
-		w.cCode.WriteString(fmt.Sprintf(`
+		if i.Name != "NSAutoreleasePool" {
+			w.cCode.WriteString(fmt.Sprintf(`
+void*
+%sAlloc() {
+	return [[%s alloc] autorelease];
+}
+`, i.Name, i.Name))
+		} else {
+		//who autoreleases the autorelease pools?
+			w.cCode.WriteString(fmt.Sprintf(`
 void*
 %sAlloc() {
 	return [%s alloc];
 }
 `, i.Name, i.Name))
+		}
 
 		//FIXME: sort properties
 		for _,p := range i.Properties {