443 lines
9.3 KiB
Go
443 lines
9.3 KiB
Go
package wrap
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"gitlab.wow.st/gmp/nswrap/ast"
|
|
"gitlab.wow.st/gmp/nswrap/types"
|
|
)
|
|
|
|
var (
|
|
Debug = false
|
|
)
|
|
|
|
type Wrapper struct {
|
|
Interfaces map[string]Interface
|
|
|
|
cCode strings.Builder // put cGo code here
|
|
goTypes strings.Builder // put Go type declarations here
|
|
goCode strings.Builder // put Go code here
|
|
goHelpers strings.Builder // put Go helper functions here
|
|
Processed map[string]bool
|
|
}
|
|
|
|
func NewWrapper(debug bool) *Wrapper {
|
|
Debug = debug
|
|
if Debug { fmt.Println("// Debug mode") }
|
|
ret := &Wrapper{
|
|
Interfaces: map[string]Interface{},
|
|
Processed: map[string]bool{},
|
|
}
|
|
ret.cCode.WriteString(`/*
|
|
#cgo CFLAGS: -x objective-c
|
|
#cgo LDFLAGS: -framework Foundation
|
|
`)
|
|
return ret
|
|
}
|
|
|
|
func (w *Wrapper) Import(ss []string) {
|
|
for _,s := range ss {
|
|
w.cCode.WriteString(`
|
|
#import "` + s + `"
|
|
`)
|
|
}
|
|
}
|
|
|
|
func (w *Wrapper) SysImport(ss []string) {
|
|
for _,s := range ss {
|
|
w.cCode.WriteString(`
|
|
#import <` + s + `>
|
|
`)
|
|
}
|
|
}
|
|
|
|
type Property struct {
|
|
Name, Attr string
|
|
Type *types.Type
|
|
}
|
|
|
|
type Parameter struct {
|
|
Pname, Vname string
|
|
Type *types.Type
|
|
}
|
|
|
|
type Method struct {
|
|
Name, Class string
|
|
Type *types.Type
|
|
ClassMethod bool
|
|
Parameters []Parameter
|
|
}
|
|
|
|
//isVoid() returns true if the method has no return value.
|
|
func (m Method) isVoid() bool {
|
|
return m.Type.CType() == "void"
|
|
}
|
|
|
|
//hasFunctionParam() returns true if a method has a function as a parameter.
|
|
func (m Method) hasFunctionParam() bool {
|
|
for _,p := range m.Parameters {
|
|
if p.Type.Node.IsFunction() {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (w Wrapper) cparamlist(m Method) string {
|
|
ret := make([]string,0)
|
|
if !m.ClassMethod {
|
|
ret = append(ret,"void* obj")
|
|
}
|
|
for _,p := range m.Parameters {
|
|
var tp string
|
|
if p.Type.Node.IsPointer() {
|
|
tp = "void*"
|
|
} else {
|
|
tp = p.Type.CType()
|
|
}
|
|
ret = append(ret,fmt.Sprintf("%s %s",tp,p.Vname))
|
|
}
|
|
return strings.Join(ret,", ")
|
|
}
|
|
|
|
func (w Wrapper) objcparamlist(m Method) string {
|
|
if len(m.Parameters) == 0 {
|
|
return m.Name
|
|
}
|
|
first := true
|
|
ret := []string{}
|
|
for _,p := range m.Parameters {
|
|
if first {
|
|
ret = append(ret,m.Name + ":" + p.Vname)
|
|
first = false
|
|
} else {
|
|
ret = append(ret, p.Pname + ":" + p.Vname)
|
|
}
|
|
}
|
|
return strings.Join(ret," ")
|
|
}
|
|
|
|
//goreserved is a map telling whether a word is a go reserved word that is not
|
|
//also a C/Objective-C reserved word.
|
|
var goreserved map[string]bool = map[string]bool{
|
|
"range": true,
|
|
}
|
|
|
|
func (m *Method) gpntp() ([]string,[]*types.Type,string) {
|
|
ns := []string{}
|
|
tps := []*types.Type{}
|
|
if !m.ClassMethod {
|
|
ns = append(ns,"o")
|
|
tps = append(tps,types.NewTypeFromString(m.Class + "*",""))
|
|
}
|
|
for _,p := range m.Parameters {
|
|
gname := p.Vname
|
|
if goreserved[gname] {
|
|
gname = gname + "_"
|
|
}
|
|
ns = append(ns,gname)
|
|
tps = append(tps,p.Type)
|
|
}
|
|
ret := []string{}
|
|
i := 0
|
|
if !m.ClassMethod { i = 1 }
|
|
for ; i < len(ns); i++ {
|
|
gt := tps[i].GoType()
|
|
if gt == "*Void" {
|
|
gt = "unsafe.Pointer"
|
|
}
|
|
ret = append(ret,ns[i] + " " + gt)
|
|
}
|
|
return ns, tps, strings.Join(ret,", ")
|
|
}
|
|
|
|
|
|
type Interface struct {
|
|
Name string
|
|
Properties map[string]Property
|
|
Methods map[string]Method
|
|
}
|
|
|
|
func (w *Wrapper) AddInterface(n *ast.ObjCInterfaceDecl) {
|
|
//fmt.Printf("ast.ObjCInterfaceDecl: %s\n",n.Name)
|
|
w.add(n.Name, n.Children())
|
|
}
|
|
|
|
func (w *Wrapper) AddCategory(n *ast.ObjCCategoryDecl) {
|
|
ns := n.Children()
|
|
if len(ns) > 0 {
|
|
switch x := ns[0].(type) {
|
|
case *ast.ObjCInterface:
|
|
w.add(x.Name, ns[1:])
|
|
return
|
|
}
|
|
}
|
|
fmt.Printf("Not adding methods for %s: interface name not found in first child node of category defclaration\n",n.Name)
|
|
}
|
|
|
|
func (w *Wrapper) add(name string, ns []ast.Node) {
|
|
var i Interface
|
|
var ok bool
|
|
if i,ok = w.Interfaces[name]; !ok {
|
|
i = Interface{
|
|
Name: name,
|
|
Properties: map[string]Property{},
|
|
Methods: map[string]Method{},
|
|
}
|
|
}
|
|
tp := types.NewTypeFromString(name,name)
|
|
types.Wrap(tp.GoType())
|
|
var avail bool
|
|
for _,c := range ns {
|
|
switch x := c.(type) {
|
|
case *ast.ObjCPropertyDecl:
|
|
//fmt.Printf("ObjCPropertyDecl: %s\n",x.Name)
|
|
p := Property{
|
|
Name: x.Name,
|
|
Type: types.NewTypeFromString(x.Type,name),
|
|
}
|
|
//_,avail = w.GetParms(x,name) // TODO
|
|
//if avail {
|
|
i.Properties[p.Name] = p
|
|
//}
|
|
case *ast.ObjCMethodDecl:
|
|
//fmt.Printf("ObjCMethodDecl: %s\n",x.Name)
|
|
m := Method{
|
|
Name: x.Name,
|
|
Type: types.NewTypeFromString(x.Type,name),
|
|
Class: name,
|
|
ClassMethod: x.ClassMethod,
|
|
}
|
|
m.Parameters, avail = w.GetParms(x,name)
|
|
if avail {
|
|
i.Methods[m.Name] = m
|
|
}
|
|
case *ast.ObjCProtocol:
|
|
//fmt.Printf("ast.ObjCProtocol: %s\n",x.Name)
|
|
case *ast.ObjCInterface:
|
|
if x.Super {
|
|
//fmt.Printf("ast.ObjCInterface: %s inherits from %s\n",name,x.Name)
|
|
types.SetSuper(name,x.Name)
|
|
}
|
|
case *ast.Unknown:
|
|
//fmt.Printf("(*ast.Unkonwn %s: %s)\n",x.Name,x.Content)
|
|
default:
|
|
//fmt.Println(reflect.TypeOf(x))
|
|
}
|
|
}
|
|
//fmt.Println("Add interface ",i.Name)
|
|
w.Interfaces[i.Name] = i
|
|
}
|
|
|
|
type AvailAttr struct {
|
|
OS, Version string
|
|
Deprecated bool
|
|
}
|
|
|
|
//GetParms returns the parameters of a method declaration and a bool
|
|
//indicating whether the given method is available on MacOS and not
|
|
//deprecated.
|
|
func (w *Wrapper) GetParms(n *ast.ObjCMethodDecl,class string) ([]Parameter,bool) {
|
|
ret := make([]Parameter,0)
|
|
avail := make([]AvailAttr,0)
|
|
j := 0
|
|
for _,c := range n.Children() {
|
|
switch x := c.(type) {
|
|
case *ast.ParmVarDecl:
|
|
p := Parameter{
|
|
Pname: n.Parameters[j],
|
|
Vname: x.Name,
|
|
Type: types.NewTypeFromString(x.Type,class),
|
|
}
|
|
ret = append(ret,p)
|
|
j++
|
|
case *ast.AvailabilityAttr:
|
|
avail = append(avail,
|
|
AvailAttr{
|
|
OS: x.OS,
|
|
Version: x.Version,
|
|
Deprecated: x.Unknown1 != "0",
|
|
})
|
|
//fmt.Println("AvailAttr ",avail,x)
|
|
case *ast.UnavailableAttr:
|
|
avail = append(avail,
|
|
AvailAttr{ OS: "macos", Deprecated: true })
|
|
case *ast.Unknown:
|
|
if Debug { fmt.Printf("GetParms(): ast.Unknown: %s\n",x.Name) }
|
|
}
|
|
}
|
|
// check that the method is available for this OS and not deprecated
|
|
a := func() bool {
|
|
if len(avail) == 0 {
|
|
return true
|
|
}
|
|
for _,x := range avail {
|
|
if x.OS == "macos" && x.Deprecated == false {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}()
|
|
if !a {
|
|
return nil, false
|
|
}
|
|
// check that we found the right number of parameters
|
|
if len(ret) != len(n.Parameters) {
|
|
fmt.Printf("Error in method declaration %s: Wrong number of ParmVarDecl children: %d parameters but %d ParmVarDecl children\n",n.Name,len(n.Parameters),len(ret))
|
|
}
|
|
return ret, true
|
|
}
|
|
|
|
// new version of ProcessType
|
|
func (w *Wrapper) processTypes(tps []*types.Type) {
|
|
switch len(tps) {
|
|
case 0:
|
|
return
|
|
case 1:
|
|
w.processType(tps[0])
|
|
default:
|
|
for _,tp := range tps {
|
|
w.processType(tp)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
|
|
func (w *Wrapper) processType(tp *types.Type) {
|
|
bt := tp.BaseType()
|
|
if w.Processed[bt.GoType()] { return }
|
|
w.Processed[bt.GoType()] = true
|
|
if bt.Node.IsFunction() {
|
|
return
|
|
}
|
|
w.goTypes.WriteString(tp.GoTypeDecl())
|
|
if tp.GoType() == "*Char" {
|
|
w.CharHelpers()
|
|
}
|
|
super := types.Super(bt.GoType())
|
|
if super != "" {
|
|
types.Wrap(super)
|
|
pt := types.NewTypeFromString(super + "*","")
|
|
w.processType(pt)
|
|
}
|
|
}
|
|
|
|
func (w *Wrapper) CharHelpers() {
|
|
w.goHelpers.WriteString(`
|
|
func CharFromString(s string) *Char {
|
|
return (*Char)(unsafe.Pointer(C.CString(s)))
|
|
}
|
|
|
|
func CharFromBytes(b []byte) *Char {
|
|
return (*Char)(unsafe.Pointer(C.CString(string(b))))
|
|
}
|
|
|
|
func (c *Char) String() string {
|
|
return C.GoString((*C.char)(c))
|
|
}
|
|
`)
|
|
}
|
|
|
|
|
|
func (w *Wrapper) Wrap(toproc []string) {
|
|
|
|
pInterfaces := map[string]Interface{}
|
|
for _,iface := range toproc {
|
|
pInterfaces[iface] = w.Interfaces[iface]
|
|
}
|
|
//FIXME: sort pInterfaces
|
|
for iname,i := range pInterfaces {
|
|
if Debug {
|
|
fmt.Printf("Interface %s: %d properties, %d methods\n",
|
|
iname, len(i.Properties), len(i.Methods))
|
|
}
|
|
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
func New%s() *%s {
|
|
ret := &%s{}
|
|
ret.ptr = unsafe.Pointer(C.New%s())
|
|
//ret = ret.Init()
|
|
return ret
|
|
}
|
|
`,i.Name,i.Name,i.Name,i.Name))
|
|
|
|
w.cCode.WriteString(fmt.Sprintf(`
|
|
%s*
|
|
New%s() {
|
|
return [%s alloc];
|
|
}
|
|
`, i.Name, i.Name, i.Name))
|
|
|
|
//FIXME: sort properties
|
|
for _,p := range i.Properties {
|
|
if Debug {
|
|
fmt.Printf(" property: %s (%s)\n", p.Name, p.Type.CType())
|
|
}
|
|
}
|
|
//FIXME: sort methods
|
|
for _,m := range i.Methods {
|
|
if Debug {
|
|
fmt.Printf(" method: %s (%s)\n", m.Name, m.Type)
|
|
}
|
|
if m.Type.Node.IsFunction() {
|
|
continue
|
|
}
|
|
if m.hasFunctionParam() {
|
|
continue
|
|
}
|
|
gname := strings.Title(m.Name)
|
|
if m.ClassMethod {
|
|
gname = i.Name + gname
|
|
} else {
|
|
gname = "(o *" + i.Name + ") " + gname
|
|
}
|
|
cname := i.Name + "_" + m.Name
|
|
|
|
cmtype := m.Type.CTypeAttrib()
|
|
ns,tps,gplist := m.gpntp()
|
|
w.processTypes(tps)
|
|
w.processType(m.Type)
|
|
grtype := m.Type.GoType()
|
|
if grtype == "Void" {
|
|
grtype = ""
|
|
}
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
func %s(%s) %s {
|
|
`,gname,gplist,grtype))
|
|
w.goCode.WriteString(
|
|
types.GoToC(cname,ns,m.Type,tps) + "}\n\n")
|
|
|
|
cret := ""
|
|
if !m.isVoid() {
|
|
cret = "return "
|
|
}
|
|
var cobj string
|
|
if m.ClassMethod {
|
|
cobj = i.Name
|
|
} else {
|
|
cobj = "(id)obj"
|
|
}
|
|
w.cCode.WriteString(fmt.Sprintf(`
|
|
%s
|
|
%s(%s) {
|
|
%s[%s %s];
|
|
}`, cmtype, cname, w.cparamlist(m), cret, cobj, w.objcparamlist(m)))
|
|
}
|
|
}
|
|
fmt.Println(`package main
|
|
`)
|
|
fmt.Println(w.cCode.String())
|
|
fmt.Println(`
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
`)
|
|
fmt.Println(w.goTypes.String())
|
|
fmt.Println(w.goHelpers.String())
|
|
fmt.Println(w.goCode.String())
|
|
}
|