1737 lines
42 KiB
Go
1737 lines
42 KiB
Go
package wrap
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import (
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"fmt"
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"os"
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"path"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"gitlab.wow.st/gmp/nswrap/ast"
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"gitlab.wow.st/gmp/nswrap/types"
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)
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var (
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Debug = false
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)
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type Wrapper struct {
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Package string
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Interfaces map[string]*Interface
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Functions map[string]*Method
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NamedEnums map[string]*Enum
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AnonEnums []*Enum
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Delegates map[string]map[string][]string
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Subclasses map[string]*Subclass
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Protocols map[string]*Protocol
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cgoFlags strings.Builder // put cGo directives here
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cImports strings.Builder // put C imports and sysimports here
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cCode strings.Builder // put cGo code here
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goTypes strings.Builder // put Go type declarations here
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goConst strings.Builder // put Go constants (from C enums) here
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goCode strings.Builder // put Go code here
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goExports strings.Builder // put exported Go functions here
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goHelpers strings.Builder // put Go helper functions here
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ProcessedTypes map[string]bool
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ProcessedClassMethods map[string]bool
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Vaargs int
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}
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func NewWrapper(debug bool) *Wrapper {
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Debug = debug
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if Debug { fmt.Println("// Debug mode") }
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ret := &Wrapper{
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Interfaces: map[string]*Interface{},
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Functions: map[string]*Method{},
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NamedEnums: map[string]*Enum{},
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AnonEnums: []*Enum{},
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Protocols: map[string]*Protocol{},
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Subclasses: map[string]*Subclass{},
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ProcessedTypes: map[string]bool{},
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ProcessedClassMethods: map[string]bool{},
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Vaargs: 16,
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}
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ret.cgoFlags.WriteString(fmt.Sprintf(`/*
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#cgo CFLAGS: -x objective-c
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`))
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ret.goTypes.WriteString(`
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type Id struct {
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ptr unsafe.Pointer
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}
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func (o Id) Ptr() unsafe.Pointer { return o.ptr }
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`)
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return ret
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}
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func (w *Wrapper) Frameworks(ss []string) {
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if len(ss) == 0 {
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return
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}
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for _,s := range ss {
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w.cImports.WriteString(fmt.Sprintf("#import <%s/%s.h>\n",s,s))
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}
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w.cgoFlags.WriteString("#cgo LDFLAGS: -framework " + strings.Join(ss," -framework "))
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}
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func (w *Wrapper) Import(ss []string) {
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for _,s := range ss {
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w.cImports.WriteString("\n#import \"" + s + "\"\n")
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}
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}
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func (w *Wrapper) SysImport(ss []string) {
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for _,s := range ss {
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w.cImports.WriteString("\n#import <" + s + ">\n")
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}
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}
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func (w *Wrapper) Pragma(ss []string) {
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for _,s := range ss {
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w.cgoFlags.WriteString("\n#pragma " + s + "\n")
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}
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}
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func (w *Wrapper) Delegate(ds map[string]map[string][]string) {
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w.Delegates = ds
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}
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func (w *Wrapper) Subclass(ds map[string]map[string][]string) {
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for k,v := range ds {
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sc := &Subclass{
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Overrides: []string{},
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NewMethods: []string{},
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}
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if len(ds) == 0 {
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fmt.Printf("No superclass specified for subclass %s\n",k)
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os.Exit(-1)
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}
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if len(ds) > 1 {
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fmt.Printf("Multiple inheritance not permitted for subclass %s\n",k)
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os.Exit(-1)
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}
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sc.Name = k
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for x,y := range(v) {
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sc.Super = x
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for _,m := range y {
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switch m[0] {
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case '-','+':
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sc.NewMethods = append(sc.NewMethods,m)
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default:
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sc.Overrides = append(sc.Overrides,m)
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}
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}
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}
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w.Subclasses[sc.Name] = sc
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}
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}
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type Subclass struct {
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Name,Super string
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Overrides []string
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NewMethods []string
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}
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type Property struct {
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Name, Attr string
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Type *types.Type
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}
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type Parameter struct {
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Pname, Vname string
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Type *types.Type
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}
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type Method struct {
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Name, GoName, Class, GoClass string
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Type *types.Type
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ClassMethod bool
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Parameters []*Parameter
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}
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//Fully disambiguated method name (m.GoName + all parameter names)
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func (m *Method) LongName() string {
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ret := m.GoName
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for _,p := range m.Parameters {
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ret = ret + p.Pname
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}
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return ret
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}
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func (m *Method) HasUnsupportedType() bool {
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return m.Type.IsFunction() ||
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m.Type.IsFunctionPtr() ||
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m.hasUnsupportedParam()
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}
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type Enum struct {
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Name string
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Type *types.Type
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Constants []string
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}
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type Protocol struct {
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InstanceMethods, ClassMethods *MethodCollection
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}
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type MethodCollection struct {
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Class string
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Methods []*Method
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}
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func NewMethodCollection(class string) *MethodCollection {
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ret := &MethodCollection{
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Class: class,
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Methods: []*Method{},
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}
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return ret
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}
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type ByParams []*Method
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func (a ByParams) Len() int { return len(a) }
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func (a ByParams) Swap(i,j int) { a[i], a[j] = a[j], a[i] }
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func (a ByParams) Less(i, j int) bool { return len(a[i].Parameters) < len(a[j].Parameters) }
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//Disambiguate overloaded method names
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func Disambiguate(mc *MethodCollection) {
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lst := map[string][]*Method{}
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for _,m := range mc.Methods {
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lst2 := lst[m.Name]
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if lst2 == nil {
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lst2 = []*Method{m}
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} else {
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lst2 = append(lst2,m)
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}
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lst[m.Name] = lst2
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}
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mc.Methods = []*Method{}
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used := map[string]bool{}
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for _,v := range lst {
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sort.Sort(ByParams(v))
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for _,m := range v {
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if len(v) < 2 || len(m.Parameters) < 2 {
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mc.Methods = append(mc.Methods,m)
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continue
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}
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i := 2
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pname := m.Name + strings.Title(m.Parameters[1].Pname)
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for ; used[pname] && i < len(m.Parameters); i++ {
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pname = pname + strings.Title(m.Parameters[i].Pname)
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}
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used[pname] = true
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m.GoName = strings.Title(pname)
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mc.Methods = append(mc.Methods,m)
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}
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}
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}
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//isVoid() returns true if the method has no return value.
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func (m Method) isVoid() bool {
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return m.Type.CType() == "void"
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}
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//hasUnsupportedParam() returns true if a method has a function as a parameter.
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func (m Method) hasUnsupportedParam() bool {
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for _,p := range m.Parameters {
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if p.Type.IsFunction() || p.Type.IsFunctionPtr() {
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return true
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}
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if pt := p.Type.PointsTo(); pt.IsValist() {
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return true
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}
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}
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return false
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}
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func (w Wrapper) cparamlist(m *Method) (string,string,string) {
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ns := make([]string,0)
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ret := make([]string,0)
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tps := []string{"void*"}
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if !m.ClassMethod {
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ret = append(ret,"void* o")
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}
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for _,p := range m.Parameters {
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var tp string
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wp := types.ShouldWrap(p.Type.GoType())
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if wp || p.Type.IsPointer() || p.Type.Variadic {
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tp = "void*"
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} else {
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tp = p.Type.CType()
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}
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ns = append(ns,p.Vname)
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ret = append(ret,fmt.Sprintf("%s %s",tp,p.Vname))
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tps = append(tps,tp)
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}
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return strings.Join(ns,", "),strings.Join(ret,", "),strings.Join(tps,", ")
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}
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func (w Wrapper) objcparamlist(m *Method) string {
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if len(m.Parameters) == 0 {
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return m.Name
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}
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first := true
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ret := []string{}
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for _,p := range m.Parameters {
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if first && !p.Type.Variadic {
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ret = append(ret,m.Name + ":" + p.Vname)
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first = false
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} else {
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if p.Type.Variadic {
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str := []string{p.Pname + ", arr[0]"}
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for i := 1; i < w.Vaargs; i++ {
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str = append(str,"arr["+strconv.Itoa(i)+"]")
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}
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str = append(str,"nil")
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ret = append(ret, strings.Join(str,", "))
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} else {
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ret = append(ret, p.Pname + ":" + p.Vname)
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}
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}
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}
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return strings.Join(ret," ")
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}
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//goreserved is a map telling whether a word is a go reserved word that is not
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//also a C/Objective-C reserved word.
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var goreserved map[string]bool = map[string]bool{
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"range": true,
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"type": true,
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"len": true,
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}
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func (w *Wrapper) gpntp(m *Method) ([]string,[]string,[]*types.Type,string) {
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ns := []string{}
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tps := []*types.Type{}
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if !m.ClassMethod {
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ns = append(ns,"o")
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tps = append(tps,types.NewTypeFromString(m.Class + "*",""))
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}
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for _,p := range m.Parameters {
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gname := p.Vname
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if goreserved[gname] {
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gname = gname + "_"
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}
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ns = append(ns,gname)
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tps = append(tps,p.Type)
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}
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w.processTypes(tps)
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ret := []string{}
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snames := make([]string,len(ns))
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i := 0
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if !m.ClassMethod { i = 1 }
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for ; i < len(ns); i++ {
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gt := tps[i].GoType()
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if gt == "*Void" {
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gt = "unsafe.Pointer"
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}
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if tps[i].Variadic {
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gt = "..." + gt
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ns[i] = ns[i] + "s"
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}
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if len(gt) > 2 && gt[:2] == "**" && types.ShouldWrap(gt[2:]) {
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x := gt[2:]
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if types.IsGoInterface(x) {
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x = "Id"
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}
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gt = "*[]" + x
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snames[i] = "goSlice" + strconv.Itoa(i)
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}
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ret = append(ret,ns[i] + " " + gt)
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}
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return ns, snames, tps, strings.Join(ret,", ")
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}
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type Interface struct {
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Name, GoName string
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InstanceMethods, ClassMethods *MethodCollection
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Properties map[string]*Property
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Protocols []string // Protocols impelemented by this Interface
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ProcessedInstanceMethods map[string]bool
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}
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func (w *Wrapper) AddInterface(n *ast.ObjCInterfaceDecl) {
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//fmt.Printf("ast.ObjCInterfaceDecl: %s\n",n.Name)
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w.add(n.Name, n.Children())
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}
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func (w *Wrapper) AddCategory(n *ast.ObjCCategoryDecl) {
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ns := n.Children()
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if len(ns) > 0 {
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switch x := ns[0].(type) {
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case *ast.ObjCInterface:
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w.add(x.Name, ns[1:])
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return
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}
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}
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fmt.Printf("Not adding methods for %s: interface name not found in first child node of category defclaration\n",n.Name)
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}
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func (w *Wrapper) AddFunction(n *ast.FunctionDecl) {
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//treat functions as class methods with no class
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tp := types.NewTypeFromString(n.Type,"")
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m := &Method{
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Name: n.Name,
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GoName: strings.Title(n.Name),
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Type: tp.ReturnType(),
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Class: "",
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ClassMethod: true,
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Parameters: []*Parameter{},
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}
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f := tp.Node.Children[len(tp.Node.Children)-1] // Function node
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if f.Kind != "Function" {
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//fmt.Printf("AddFunction(%s): not a function -- Node type is %s\n%s",n.Name,f.Kind,tp.String())
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return
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}
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//fmt.Printf("FunctionDecl: %s (%s) %s\n",n.Type,m.Type.CType(),n.Name)
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i := 0
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for _,c := range n.Children() {
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switch x := c.(type) {
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case *ast.ParmVarDecl:
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p := &Parameter{
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Vname: x.Name,
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Type: types.NewTypeFromString(x.Type,""),
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}
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m.Parameters = append(m.Parameters,p)
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i++
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//fmt.Printf(" %s\n",p.Type.CType())
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case *ast.Variadic:
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p := &Parameter{
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Vname: "object",
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Type: types.NewTypeFromString("NSObject*",""),
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}
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p.Type.Variadic = true
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m.Parameters = append(m.Parameters,p)
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i++
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}
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}
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if i > 0 && len(f.Children) > i {
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if e := f.Children[i]; len(e.Children) > 0 {
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//fmt.Println(" Next parameter: ",e.Children[0].String())
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//m.Parameters[i-1].Type.Variadic = true
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}
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}
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w.Functions[n.Name] = m
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}
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func (w *Wrapper) AddProtocol(n *ast.ObjCProtocolDecl) {
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p := w.Protocols[n.Name]
|
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if p == nil {
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//fmt.Printf("Adding protocol %s\n",n.Name)
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p = &Protocol{ }
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//p.GoName = types.NewTypeFromString(n.Name,n.Name).GoType()
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p.ClassMethods = NewMethodCollection(n.Name)
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p.InstanceMethods = NewMethodCollection(n.Name)
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}
|
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//fmt.Printf("Protocol %s\n",p.Name)
|
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for _,c := range n.Children() {
|
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switch x := c.(type) {
|
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case *ast.ObjCMethodDecl:
|
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if x.ClassMethod {
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w.AddMethod(p.ClassMethods,x)
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} else {
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w.AddMethod(p.InstanceMethods,x)
|
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}
|
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}
|
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}
|
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Disambiguate(p.InstanceMethods)
|
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Disambiguate(p.ClassMethods)
|
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w.Protocols[n.Name] = p
|
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}
|
|
|
|
func (w *Wrapper) AddMethod(p *MethodCollection, x *ast.ObjCMethodDecl) {
|
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m := &Method{
|
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Name: x.Name,
|
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GoName: strings.Title(x.Name),
|
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Type: types.NewTypeFromString(x.Type,p.Class),
|
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Class: p.Class,
|
|
GoClass: strings.Title(p.Class),
|
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ClassMethod: x.ClassMethod,
|
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}
|
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//fmt.Printf(" -- Method %s\n",m.Name)
|
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var avail bool
|
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m.Parameters, avail = w.GetParms(x,p.Class)
|
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if avail {
|
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//fmt.Printf("%s: Adding %s (%d)\n",p.Class,m.Name,len(m.Parameters))
|
|
//fmt.Printf("--Method name is %s\n",m.Name)
|
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p.Methods = append(p.Methods,m)
|
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}
|
|
}
|
|
|
|
//FIXME: copied from nswrap/main.go, should put this in a utils package
|
|
func matches(x string, rs []string) bool {
|
|
for _,r := range rs {
|
|
if m,_ := regexp.MatchString("^" + r + "$",x); m {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (w *Wrapper) AddEnum(n *ast.EnumDecl,rs []string) {
|
|
if n.Name != "" && !matches(n.Name,rs) {
|
|
return
|
|
}
|
|
//fmt.Printf("Adding enum: (%s) %s\n",n.Type,n.Name)
|
|
var tp *types.Type
|
|
a := (*Avail)(&[]AvailAttr{})
|
|
if n.Type == "" {
|
|
tp = nil
|
|
} else {
|
|
tp = types.NewTypeFromString(n.Type,"")
|
|
//fmt.Printf(" type: %s -> %s\n",n.Type,tp.CType())
|
|
}
|
|
e := &Enum{
|
|
Name: n.Name, // NOTE: may be empty string
|
|
Type: tp,
|
|
Constants: []string{},
|
|
}
|
|
for _,c := range n.Children() {
|
|
switch x := c.(type) {
|
|
case *ast.AvailabilityAttr, *ast.UnavailableAttr, *ast.DeprecatedAttr:
|
|
a.Add(x)
|
|
case *ast.EnumConstantDecl:
|
|
//fmt.Printf("*ast.EnumConstantDecl: (%s) '%s': %s\n",n.Type,n.Name,x.Name)
|
|
if n.Name == "" && !matches(x.Name,rs) {
|
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continue
|
|
}
|
|
e.Constants = append(e.Constants,x.Name)
|
|
}
|
|
}
|
|
if a.Available() && len(e.Constants) > 0 {
|
|
if e.Name == "" {
|
|
w.AnonEnums = append(w.AnonEnums,e)
|
|
} else {
|
|
w.NamedEnums[e.Name] = e
|
|
}
|
|
//fmt.Printf(" added\n")
|
|
}
|
|
}
|
|
|
|
//Add an Interface or add a Category to an Interface
|
|
func (w *Wrapper) add(name string, ns []ast.Node) {
|
|
var i *Interface
|
|
var ok bool
|
|
goname := strings.Title(types.NewTypeFromString(name,name).GoType())
|
|
types.Wrap(goname)
|
|
if i,ok = w.Interfaces[name]; !ok {
|
|
i = &Interface{ }
|
|
i.Name = name
|
|
i.GoName = goname
|
|
i.Properties = map[string]*Property{}
|
|
i.InstanceMethods = NewMethodCollection(name)
|
|
i.ClassMethods = NewMethodCollection(name)
|
|
i.Protocols = []string{}
|
|
i.ProcessedInstanceMethods = map[string]bool{}
|
|
m := &Method{
|
|
Name: "class",
|
|
GoName: "Class",
|
|
Class: i.Name,
|
|
GoClass: i.Name,
|
|
Type: types.NewTypeFromString("Class",i.Name),
|
|
ClassMethod: true,
|
|
Parameters: []*Parameter{},
|
|
}
|
|
i.ClassMethods.Methods = []*Method{m}
|
|
}
|
|
//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 (%s) %s\n",x.Type,name,x.Name)
|
|
if name == "NSObject" && x.Name == "initialize" {
|
|
continue
|
|
}
|
|
if x.ClassMethod {
|
|
w.AddMethod(i.ClassMethods,x)
|
|
} else {
|
|
w.AddMethod(i.InstanceMethods,x)
|
|
}
|
|
case *ast.ObjCProtocol:
|
|
//fmt.Printf("ast.ObjCProtocol: %s\n",x.Name)
|
|
i.Protocols = append(i.Protocols,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.ObjCTypeParamDecl:
|
|
//fmt.Printf("ObjCTypeParamDecl: %s = %s\n",x.Name,x.Type)
|
|
types.SetTypeParam(name,x.Name,x.Type)
|
|
case *ast.Unknown:
|
|
//fmt.Printf("(*ast.Unkonwn %s: %s)\n",x.Name,x.Content)
|
|
default:
|
|
//fmt.Println(reflect.TypeOf(x))
|
|
}
|
|
}
|
|
//Add class methods from super class
|
|
var supmethods func(*Interface,string)
|
|
supmethods = func(i *Interface, s string) {
|
|
if sup,ok := w.Interfaces[s]; !ok {
|
|
return
|
|
} else {
|
|
//depth first
|
|
supmethods(i,types.Super(s))
|
|
for _,m := range sup.ClassMethods.Methods {
|
|
m2 := &Method{
|
|
Name: m.Name,
|
|
GoName: m.GoName,
|
|
Class: i.Name,
|
|
GoClass: i.GoName,
|
|
Type: m.Type.CloneToClass(i.Name),
|
|
ClassMethod: true,
|
|
Parameters: []*Parameter{},
|
|
}
|
|
for _,p := range m.Parameters {
|
|
p2 := &Parameter{
|
|
Pname: p.Pname,
|
|
Vname: p.Vname,
|
|
Type: p.Type.CloneToClass(i.Name),
|
|
}
|
|
m2.Parameters = append(m2.Parameters,p2)
|
|
}
|
|
found := false
|
|
longname := m2.LongName()
|
|
for n,x := range i.ClassMethods.Methods {
|
|
if x.LongName() == longname {
|
|
i.ClassMethods.Methods[n] = m2
|
|
found = true
|
|
}
|
|
}
|
|
if !found {
|
|
i.ClassMethods.Methods = append(i.ClassMethods.Methods,m2)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
supmethods(i,types.Super(i.Name))
|
|
//fmt.Println("Add interface ",i.Name)
|
|
Disambiguate(i.ClassMethods)
|
|
Disambiguate(i.InstanceMethods)
|
|
w.Interfaces[i.Name] = i
|
|
}
|
|
|
|
type AvailAttr struct {
|
|
OS, Version string
|
|
Deprecated bool
|
|
}
|
|
|
|
type Avail []AvailAttr
|
|
|
|
func (a *Avail) Add(n ast.Node) {
|
|
switch x := n.(type) {
|
|
case *ast.AvailabilityAttr:
|
|
*a = append(*a, AvailAttr{
|
|
OS: x.OS,
|
|
Version: x.Version,
|
|
Deprecated: (x.Unknown1 != "0") || x.IsUnavailable,
|
|
})
|
|
case *ast.UnavailableAttr, *ast.DeprecatedAttr:
|
|
*a = append(*a, AvailAttr{
|
|
OS: "macos", Deprecated: true })
|
|
}
|
|
}
|
|
|
|
func (a *Avail) Available() bool {
|
|
if len(*a) == 0 {
|
|
return true
|
|
}
|
|
for _,x := range *a {
|
|
if x.OS == "macos" && x.Deprecated == false {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
//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.Node,class string) ([]*Parameter,bool) {
|
|
ret := make([]*Parameter,0)
|
|
avail := (*Avail)(&[]AvailAttr{})
|
|
var parms []string
|
|
switch x := n.(type) {
|
|
case *ast.ObjCMethodDecl:
|
|
parms = x.Parameters
|
|
case *ast.FunctionDecl:
|
|
default:
|
|
panic("GetParms called with wrong node type")
|
|
}
|
|
j := 0
|
|
for _,c := range n.Children() {
|
|
switch x := c.(type) {
|
|
case *ast.ParmVarDecl:
|
|
p := &Parameter{
|
|
Vname: x.Name,
|
|
Type: types.NewTypeFromString(x.Type,class),
|
|
}
|
|
if parms != nil {
|
|
p.Pname = parms[j]
|
|
}
|
|
ret = append(ret,p)
|
|
j++
|
|
case *ast.Variadic:
|
|
//ret[j-1].Type.Variadic = true
|
|
p := &Parameter{
|
|
Vname: "object",
|
|
Type: types.NewTypeFromString("NSObject*",""),
|
|
}
|
|
p.Type.Variadic = true
|
|
ret = append(ret,p)
|
|
j++
|
|
case *ast.AvailabilityAttr, *ast.UnavailableAttr, *ast.DeprecatedAttr:
|
|
avail.Add(x)
|
|
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
|
|
if !avail.Available() {
|
|
return nil, false
|
|
}
|
|
return ret, true
|
|
}
|
|
|
|
func (w *Wrapper) AddTypedef(n,t string) {
|
|
tp := types.NewTypeFromString(t,"")
|
|
gt := tp.GoType()
|
|
//fmt.Printf("Typedef %s -> %s\n",n,t)
|
|
if types.ShouldWrap(gt) {
|
|
//fmt.Printf(" should wrap\n")
|
|
//fmt.Printf(" processing type for %s (%s)\n",n,gt)
|
|
types.Wrap(n)
|
|
types.SetSuper(n,gt)
|
|
w._processType(tp,"*" + n)
|
|
} else {
|
|
types.AddTypedef(n,tp)
|
|
}
|
|
}
|
|
|
|
func (w *Wrapper) processTypes(tps []*types.Type) {
|
|
for _,tp := range tps {
|
|
w.processType(tp)
|
|
}
|
|
}
|
|
|
|
func (w *Wrapper) processType(tp *types.Type) {
|
|
bt := tp.BaseType()
|
|
gt := bt.GoType()
|
|
w._processType(bt,gt)
|
|
}
|
|
|
|
func (w *Wrapper) _processType(bt *types.Type, gt string) {
|
|
//fmt.Printf("processType: gt = %s bt = %s\n",gt,bt)
|
|
if gt == "" {
|
|
return
|
|
}
|
|
if gt[0] == '*' {
|
|
w.processType(bt.PointsTo())
|
|
return
|
|
}
|
|
if w.ProcessedTypes[gt] { return }
|
|
w.ProcessedTypes[gt] = true
|
|
if gt == "Char" {
|
|
w.CharHelpers()
|
|
}
|
|
if gt == "SEL" {
|
|
w.SelectorHelpers()
|
|
}
|
|
if gt == "NSAutoreleasePool" {
|
|
w.AutoreleaseHelpers()
|
|
}
|
|
if bt.IsFunction() || bt.IsFunctionPtr() {
|
|
return
|
|
}
|
|
super := types.Super(gt)
|
|
if super != "" {
|
|
tp := types.NewTypeFromString(super,"")
|
|
types.Wrap(tp.GoType())
|
|
w.processType(tp)
|
|
}
|
|
w.goTypes.WriteString(bt.GoTypeDecl())
|
|
}
|
|
|
|
func (w *Wrapper) CharHelpers() {
|
|
w.goHelpers.WriteString(`
|
|
func CharWithGoString(s string) *Char {
|
|
return (*Char)(unsafe.Pointer(C.CString(s)))
|
|
}
|
|
|
|
func CharWithBytes(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) StringHelpers() {
|
|
w.goHelpers.WriteString(`
|
|
func (o NSString) String() string {
|
|
return o.UTF8String().String()
|
|
}
|
|
`)
|
|
}
|
|
|
|
func (w *Wrapper) EnumeratorHelpers() {
|
|
w.goHelpers.WriteString(`
|
|
func (e NSEnumerator) ForIn(f func(Id) bool) {
|
|
for o := e.NextObject(); o.Ptr() != nil; o = e.NextObject() {
|
|
if !f(o) { break }
|
|
}
|
|
}
|
|
`)
|
|
}
|
|
|
|
func (w *Wrapper) AutoreleaseHelpers() {
|
|
//not sure why this is not coming up automatically...
|
|
w.cCode.WriteString(`
|
|
void* _Nonnull
|
|
NSAutoreleasePool_init(void* o) {
|
|
return [(NSAutoreleasePool*)o init];
|
|
}
|
|
`)
|
|
w.goHelpers.WriteString(`
|
|
func (o NSAutoreleasePool) Init() NSAutoreleasePool {
|
|
ret := NSAutoreleasePool{}
|
|
ret.ptr = C.NSAutoreleasePool_init(o.Ptr())
|
|
return ret
|
|
}
|
|
|
|
func Autoreleasepool(f func()) {
|
|
pool := NSAutoreleasePoolAlloc().Init()
|
|
f()
|
|
pool.Drain()
|
|
}
|
|
`)
|
|
}
|
|
|
|
func (w *Wrapper) SelectorHelpers() {
|
|
w.cCode.WriteString(`
|
|
void*
|
|
selectorFromString(char *s) {
|
|
return NSSelectorFromString([NSString stringWithUTF8String:s]);
|
|
}
|
|
`)
|
|
w.goHelpers.WriteString(`
|
|
func Selector(s string) SEL {
|
|
return (SEL)(unsafe.Pointer(C.selectorFromString(C.CString(s))))
|
|
}
|
|
`)
|
|
}
|
|
|
|
func (w *Wrapper) ProcessMethod(m *Method) {
|
|
w._processMethod(m,false)
|
|
}
|
|
|
|
func (w *Wrapper) ProcessMethodForClass(m *Method, class string) {
|
|
goclass := strings.Title(types.NewTypeFromString(class,class).GoType())
|
|
m2 := &Method{
|
|
Name: m.Name, GoName: m.GoName, Class: class, GoClass: goclass,
|
|
Type: m.Type.CloneToClass(class),
|
|
ClassMethod: m.ClassMethod,
|
|
Parameters: make([]*Parameter,len(m.Parameters)),
|
|
}
|
|
for i,p := range m.Parameters {
|
|
m2.Parameters[i] = &Parameter{
|
|
Pname: p.Pname, Vname: p.Vname,
|
|
Type: p.Type.CloneToClass(class),
|
|
}
|
|
}
|
|
w._processMethod(m2,false)
|
|
}
|
|
|
|
func (w *Wrapper) ProcessFunction(m *Method) {
|
|
if m.Type.Node.IsId() {
|
|
//do not wrap functions that return ID because of CGo struct size bug
|
|
return
|
|
}
|
|
w._processMethod(m,true)
|
|
}
|
|
|
|
func (w *Wrapper) _processMethod(m *Method,fun bool) {
|
|
if Debug {
|
|
fmt.Printf(" method: %s (%s)\n", m.Name, m.Type)
|
|
}
|
|
if m.HasUnsupportedType() {
|
|
return
|
|
}
|
|
w.processType(m.Type)
|
|
gname := m.GoName
|
|
gname = strings.ReplaceAll(gname,"_"," ")
|
|
gname = strings.Title(gname)
|
|
gname = strings.ReplaceAll(gname," ","")
|
|
receiver := ""
|
|
var cname string
|
|
if fun {
|
|
cname = m.Name
|
|
} else {
|
|
cname = gname
|
|
}
|
|
//fmt.Printf("Method %s (GoClass %s)\n",cname,m.GoClass)
|
|
switch {
|
|
case !m.ClassMethod:
|
|
if types.IsGoInterface(m.GoClass) {
|
|
receiver = "(o Id) "
|
|
} else {
|
|
receiver = "(o " + m.GoClass + ") "
|
|
}
|
|
//Disambiguate instance methods with same name as a class method
|
|
cname = "inst_" + cname
|
|
default:
|
|
//Shorten class method names
|
|
lens1 := len(m.Class)
|
|
i := 0
|
|
if len(gname) < len(m.Class) { i = lens1 - len(gname) }
|
|
for ; i < lens1; i++ {
|
|
if m.Class[i:] == gname[:lens1 - i] { break }
|
|
}
|
|
if lens1 - i >= len(gname) {
|
|
gname = m.GoClass + gname
|
|
} else {
|
|
gname = m.GoClass + gname[lens1-i:]
|
|
}
|
|
}
|
|
if m.Class != "" {
|
|
cname = m.Class + "_" + cname
|
|
}
|
|
var cmtype string
|
|
if m.Type.IsPointer() || types.ShouldWrap(m.Type.GoType()) {
|
|
// work around cgo bugs with struct size calculation
|
|
cmtype = "void*"
|
|
if x := m.Type.Node.Qualifiers(); x != "" {
|
|
cmtype = x + " " + cmtype
|
|
}
|
|
if x := m.Type.Node.Annotations(); x != "" {
|
|
cmtype = cmtype + " " + x
|
|
}
|
|
} else {
|
|
cmtype = m.Type.CTypeAttrib()
|
|
}
|
|
ns,snames,tps,gplist := w.gpntp(m)
|
|
grtype := m.Type.GoType()
|
|
if grtype == "Void" {
|
|
grtype = ""
|
|
}
|
|
if types.IsGoInterface(grtype) {
|
|
grtype = "Id"
|
|
}
|
|
if grtype == "BOOL" { // convert objective-c bools to Go bools
|
|
grtype = "bool"
|
|
}
|
|
if gname == grtype { // avoid name conflicts between methods and types
|
|
gname = "Get" + gname
|
|
}
|
|
if m.ClassMethod {
|
|
if w.ProcessedClassMethods[gname] {
|
|
return
|
|
}
|
|
w.ProcessedClassMethods[gname] = true
|
|
} else {
|
|
i, ok := w.Interfaces[m.Class]
|
|
if !ok {
|
|
fmt.Printf("Can't find interface %s for method %s\n",m.Class,m.Name)
|
|
os.Exit(-1)
|
|
}
|
|
if i.ProcessedInstanceMethods[gname] {
|
|
return
|
|
}
|
|
i.ProcessedInstanceMethods[gname] = true
|
|
}
|
|
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
func %s%s(%s) %s {
|
|
`,receiver,gname,gplist,grtype))
|
|
lparm := len(tps)-1
|
|
if len(tps) > 0 && tps[lparm].Variadic {
|
|
vn := ns[lparm]
|
|
vn = vn[:len(vn)-1]
|
|
ns[lparm] = vn
|
|
w.goCode.WriteString(fmt.Sprintf(
|
|
` var %s [%d]unsafe.Pointer
|
|
for i,o := range %ss {
|
|
%s[i] = o.Ptr()
|
|
}
|
|
`,vn,w.Vaargs,vn,vn))
|
|
}
|
|
for i,n := range ns {
|
|
if snames[i] == "" {
|
|
continue
|
|
}
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
%s := make([]unsafe.Pointer,cap(*%s))
|
|
for i := 0; i < len(*%s); i++ {
|
|
%s[i] = (*%s)[i].Ptr()
|
|
}
|
|
`,snames[i],n,n,snames[i],n))
|
|
}
|
|
w.goCode.WriteString(` ` +
|
|
types.GoToC(cname,ns,snames,m.Type,tps,fun) + "\n}\n")
|
|
|
|
cret := ""
|
|
if !m.isVoid() {
|
|
cret = "return "
|
|
}
|
|
var cobj string
|
|
if m.ClassMethod {
|
|
cobj = m.Class
|
|
} else {
|
|
cobj = "(" + m.Class + "*)o"
|
|
}
|
|
cns,cntps,_ := w.cparamlist(m)
|
|
if fun {
|
|
return
|
|
}
|
|
w.cCode.WriteString(fmt.Sprintf(`
|
|
%s
|
|
%s(%s) {
|
|
`, cmtype, cname, cntps))
|
|
if len(tps) > 0 && tps[lparm].Variadic {
|
|
w.cCode.WriteString(fmt.Sprintf(
|
|
` %s* arr = %s;
|
|
`, tps[lparm].CType(), ns[lparm]))
|
|
}
|
|
if fun {
|
|
w.cCode.WriteString(fmt.Sprintf(` %s%s(%s);
|
|
}`, cret, m.Name, cns))
|
|
} else {
|
|
w.cCode.WriteString(fmt.Sprintf(` %s[%s %s];
|
|
}`, cret, cobj, w.objcparamlist(m)))
|
|
}
|
|
|
|
// create GoString helper method
|
|
if ok,_ := regexp.MatchString("WithString$",m.Name); ok {
|
|
//fmt.Printf("--%s\n",gname)
|
|
gname2 := gname[:len(gname)-6] + "GoString"
|
|
gps := []string{}
|
|
i := 0
|
|
if !m.ClassMethod { i = 1 }
|
|
for ; i < len(ns); i++ {
|
|
gt := tps[i].GoType()
|
|
//fmt.Printf(" %s\n",gt)
|
|
ns2 := ns[i]
|
|
if gt == "NSString" {
|
|
gt = "string"
|
|
ns[i] = gStringToNsstring(ns[i])
|
|
}
|
|
gps = append(gps,ns2 + " " + gt)
|
|
}
|
|
gplist = strings.Join(gps,", ")
|
|
obj := ""
|
|
if !m.ClassMethod {
|
|
obj = "o."
|
|
ns = ns[1:]
|
|
}
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
func %s%s(%s) %s {
|
|
return %s%s(%s)
|
|
}
|
|
`,receiver,gname2,gplist,grtype,obj,gname,strings.Join(ns,", ")))
|
|
}
|
|
}
|
|
|
|
func gStringToNsstring(s string) string {
|
|
return fmt.Sprintf("NSStringWithUTF8String(CharWithGoString(%s))",s)
|
|
}
|
|
|
|
|
|
func (w *Wrapper) ProcessEnum(e *Enum) {
|
|
//fmt.Printf("Processing enum (%s)\n",e.Name)
|
|
w.processType(e.Type)
|
|
gtp := ""
|
|
ctp := ""
|
|
if e.Name != "" {
|
|
gtp = e.Name
|
|
ctp = "C." + e.Name
|
|
} else {
|
|
gtp = e.Type.GoType()
|
|
ctp = e.Type.CGoType()
|
|
}
|
|
if e.Type != nil {
|
|
if !w.ProcessedTypes[gtp] {
|
|
w.goTypes.WriteString(fmt.Sprintf(`
|
|
type %s %s
|
|
`,gtp,ctp))
|
|
w.ProcessedTypes[gtp] = true
|
|
}
|
|
}
|
|
gtp = gtp + " "
|
|
//fmt.Printf(" gtp = %s; ctp = %s\n",gtp,ctp)
|
|
for _,c := range e.Constants {
|
|
w.goConst.WriteString(fmt.Sprintf(`const %s %s= C.%s
|
|
`,c,gtp,c))
|
|
}
|
|
w.goConst.WriteString("\n")
|
|
}
|
|
|
|
func (w *Wrapper) MethodFromSig(sig,class string) *Method {
|
|
ret := &Method{ Parameters: []*Parameter{} }
|
|
if len(sig) == 0 {
|
|
return ret
|
|
}
|
|
if sig[0] == '+' {
|
|
ret.ClassMethod = true
|
|
}
|
|
sig = sig[1:]
|
|
rem,n := types.MethodSignature(sig,types.NewNode("AST"))
|
|
if len(rem) > 0 {
|
|
fmt.Printf("Failed to parse method signature %s (%s)\n",sig,rem)
|
|
os.Exit(-1)
|
|
}
|
|
for _,c := range n.Children {
|
|
switch c.Kind {
|
|
case "TypeName":
|
|
tp := types.NewType(c,class)
|
|
ret.Type = tp
|
|
case "Identifier":
|
|
ret.Name = c.Content
|
|
ret.GoName = strings.Title(c.Content)
|
|
case "MethodParameter":
|
|
p := &Parameter{}
|
|
for _,d := range c.Children {
|
|
switch d.Kind {
|
|
case "TypeName":
|
|
tp := types.NewType(d,class)
|
|
p.Type = tp
|
|
case "Identifier":
|
|
p.Vname = d.Content
|
|
}
|
|
}
|
|
ret.Parameters = append(ret.Parameters,p)
|
|
}
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (w *Wrapper) ProcessSubclass(sname string, sc *Subclass) {
|
|
gname := strings.Title(sname)
|
|
types.Wrap(gname)
|
|
types.SetSuper(gname,sc.Super)
|
|
ps := map[string][]string{}
|
|
ps[sc.Super] = sc.Overrides
|
|
nms := make([]*Method,len(sc.NewMethods))
|
|
for i,sig := range sc.NewMethods {
|
|
nms[i] = w.MethodFromSig(sig,sname)
|
|
}
|
|
w._ProcessDelSub(sname,ps,nms,true)
|
|
}
|
|
|
|
func (w *Wrapper) ProcessDelegate(dname string, ps map[string][]string) {
|
|
w._ProcessDelSub(dname,ps,nil,false)
|
|
}
|
|
|
|
//NOTE: The delegate wrapper does not support variadic callback functions.
|
|
func (w *Wrapper) _ProcessDelSub(dname string, ps map[string][]string, nms []*Method, sub bool) {
|
|
//To create (per delegate):
|
|
//1. ObjC interface
|
|
//2. ObjC implementation
|
|
//3. ObjC constructor function
|
|
//4. Go type
|
|
//5. Go constructor
|
|
//6. Go dispatch database for callbacks
|
|
//7. Go superclass dispatch function
|
|
//To create (per method):
|
|
//1. ObjC function prototypes for go exports
|
|
//2. Go callback registration functions
|
|
//3. Go exported callback function wrappers
|
|
//4. Go wrapper functions for superclass methods
|
|
|
|
//organize output into string builders
|
|
var cprotos, ccode, gotypes, gocode, goexports strings.Builder
|
|
|
|
//set up array of methods for this delegate
|
|
methods := []*Method{}
|
|
sms := 0 // the number of methods that have super-methods
|
|
gnames := []string{} // go names for methods
|
|
pnames := make([]string,len(ps))
|
|
var supr string
|
|
i := 0
|
|
for pname,pats := range ps {
|
|
pnames[i] = pname
|
|
i++
|
|
var ms []*Method
|
|
if sub {
|
|
interf := w.Interfaces[pname]
|
|
supr = interf.GoName
|
|
if i > 1 {
|
|
fmt.Printf("Multiple inheritance is not permitted:\n subclass %s already inherits from %s\n",dname,supr)
|
|
os.Exit(-1)
|
|
}
|
|
if interf == nil {
|
|
fmt.Printf("Failed to find interface %s for subclass %s\n",pname,dname)
|
|
os.Exit(-1)
|
|
}
|
|
//fmt.Printf(" subclass for %s\n",pname)
|
|
ms = []*Method{}
|
|
var addmeths func(s string)
|
|
addmeths = func(s string) {
|
|
if sup := types.Super(s); w.Interfaces[sup] != nil {
|
|
addmeths(sup)
|
|
}
|
|
//fmt.Printf("Adding methods for %s\n",s)
|
|
for _,m := range w.Interfaces[s].InstanceMethods.Methods {
|
|
ms = append(ms,m)
|
|
}
|
|
}
|
|
//for subclasses, add all superclass methods, depth first
|
|
addmeths(interf.Name)
|
|
} else { // not a subclass
|
|
proto := w.Protocols[pname]
|
|
if proto == nil {
|
|
fmt.Printf("Failed to find protocol %s for delegate %s\n",pname,dname)
|
|
os.Exit(-1)
|
|
}
|
|
//fmt.Printf(" proto %s\n",pname)
|
|
ms = proto.InstanceMethods.Methods
|
|
fmt.Printf("Protocol %s\n",pname)
|
|
types.SetSuper(dname,"Id")
|
|
supr = "Id"
|
|
}
|
|
for _,m := range ms {
|
|
//note:we may have capitalized the first character to make a GoName...
|
|
if !matches(string(m.Name[0])+m.GoName[1:],pats) {
|
|
continue
|
|
}
|
|
if m.HasUnsupportedType() {
|
|
continue
|
|
}
|
|
methods = append(methods,m)
|
|
gnames = append(gnames,m.GoName)
|
|
if sub { sms = len(methods) }
|
|
}
|
|
}
|
|
//add new methods being defined for the subclass
|
|
if sub {
|
|
for _,m := range nms {
|
|
methods = append(methods,m)
|
|
gnames = append(gnames,strings.Title(m.Name))
|
|
}
|
|
}
|
|
|
|
methprotos := make([]string,len(methods)) // objc method prototypes
|
|
smethprotos := make([]string,sms) // super method prototypes
|
|
sfunprotos := make([]string,sms) // super method prototypes
|
|
gname := strings.Title(dname) // go name for this Delegate
|
|
vnames := make([][]string,len(methods)) // objc variable names
|
|
vpnames := make([][]string,len(methods)) // objc parameter:variable names
|
|
gtypes := make([][]string,len(methods)) // go parameter types for each method
|
|
getypes := make([][]string,len(methods)) // parameter types for go export
|
|
grtypes := make([]string,len(methods)) // go retrun types for each method
|
|
cgtypes := make([]string,len(methods)) // cgo return types
|
|
crtypes := make([]string,len(methods)) // c return types for each method
|
|
|
|
//1. ObjC interface
|
|
if sub {
|
|
fmt.Printf("Subclass %s <%s>: %d overrides, %d new methods\n",dname,strings.Join(pnames,", "),sms, len(nms))
|
|
} else {
|
|
fmt.Printf("Delegate %s <%s>: %d methods\n",dname,strings.Join(pnames,", "),len(methods))
|
|
}
|
|
for i,m := range methods {
|
|
w.processType(m.Type)
|
|
vnames[i] = make([]string,len(m.Parameters)+1)
|
|
vpnames[i] = make([]string,len(m.Parameters))
|
|
getypes[i] = make([]string,len(m.Parameters)+1)
|
|
vnames[i][0] = "self"
|
|
getypes[i][0] = "unsafe.Pointer"
|
|
gtypes[i] = make([]string,len(m.Parameters)+1)
|
|
gtypes[i][0] = gname + "Supermethods"
|
|
//fmt.Printf("%s: %s\n",dname,m.Name)
|
|
var parms string
|
|
var cparms string
|
|
if len(m.Parameters) == 0 {
|
|
parms = ""
|
|
cparms = "void* self"
|
|
vpnames[i] = []string{m.Name}
|
|
} else {
|
|
pm := m.Parameters[0]
|
|
w.processType(pm.Type)
|
|
parms = fmt.Sprintf(":(%s)%s",pm.Type.Node.CType(),pm.Vname)
|
|
cparms = fmt.Sprintf("void* self, %s %s",pm.Type.Node.CType(),pm.Vname)
|
|
vnames[i][1] = pm.Vname
|
|
vpnames[i][0] = pm.Pname + ":" + pm.Vname
|
|
gtypes[i][1] = pm.Type.GoType()
|
|
if pm.Type.IsPointer() {
|
|
getypes[i][1] = "unsafe.Pointer"
|
|
} else {
|
|
getypes[i][1] = gtypes[i][1]
|
|
}
|
|
}
|
|
for j := 1; j < len(m.Parameters); j++ {
|
|
pm := m.Parameters[j]
|
|
w.processType(pm.Type)
|
|
parms = parms + fmt.Sprintf(" %s:(%s)%s",pm.Pname,pm.Type.Node.CType(),pm.Vname)
|
|
cparms = cparms + fmt.Sprintf(", %s %s",pm.Type.Node.CType(),pm.Vname)
|
|
vnames[i][j+1] = pm.Vname
|
|
vpnames[i][j] = pm.Pname + ":" + pm.Vname
|
|
gtypes[i][j+1] = pm.Type.GoType()
|
|
var getp string
|
|
if pm.Type.IsPointer() {
|
|
getp = "unsafe.Pointer"
|
|
} else {
|
|
getp = gtypes[i][j+1]
|
|
}
|
|
getypes[i][j+1] = getp
|
|
}
|
|
methprotos[i] = fmt.Sprintf(
|
|
`- (%s)%s%s;`,m.Type.Node.CType(),m.Name,parms)
|
|
ct := m.Type.Node.CType()
|
|
if i < sms {
|
|
smethprotos[i] = fmt.Sprintf(
|
|
`- (%s)super_%s%s;`,ct,m.Name,parms)
|
|
}
|
|
if ct == "instancetype" {
|
|
ct = gname + "*"
|
|
}
|
|
if i < sms {
|
|
sfunprotos[i] = fmt.Sprintf(
|
|
`%s %s_super_%s(%s);`,ct,dname,m.Name,cparms)
|
|
}
|
|
if x := m.Type.GoType(); x == "Void" {
|
|
grtypes[i] = ""
|
|
} else {
|
|
grtypes[i] = " " + x
|
|
}
|
|
crtypes[i] = m.Type.CTypeAttrib()
|
|
if m.Type.IsPointer() {
|
|
cgtypes[i] = "unsafe.Pointer"
|
|
} else {
|
|
crtypes[i] = m.Type.CTypeAttrib()
|
|
cgtypes[i] = m.Type.CGoType()
|
|
}
|
|
}
|
|
var supcls string
|
|
var protos string
|
|
if sub {
|
|
supcls = pnames[0]
|
|
protos = ""
|
|
} else {
|
|
supcls = "NSObject"
|
|
protos = "<" + strings.Join(pnames,", ") + ">"
|
|
}
|
|
ccode.WriteString(fmt.Sprintf(`
|
|
@interface %s : %s %s
|
|
{ }
|
|
%s
|
|
`,dname,supcls,protos,strings.Join(methprotos,"\n")))
|
|
if sub {
|
|
ccode.WriteString(strings.Join(smethprotos,"\n"))
|
|
}
|
|
ccode.WriteString(`
|
|
@end
|
|
`)
|
|
if sub {
|
|
ccode.WriteString(strings.Join(sfunprotos,"\n"))
|
|
}
|
|
|
|
//2. ObjC implementation
|
|
methdecls := make([]string,len(methods))
|
|
smethdecls := make([]string,len(methods))
|
|
sfundecls := make([]string,len(methods))
|
|
for i,mp := range methprotos {
|
|
mp := mp[:len(mp)-1]
|
|
var smp, sfp string
|
|
if sub && i < sms {
|
|
smp = smethprotos[i][:len(smethprotos[i])-1]
|
|
sfp = sfunprotos[i][:len(sfunprotos[i])-1]
|
|
}
|
|
var ret string
|
|
if crtypes[i] != "void" {
|
|
ret = "return "
|
|
}
|
|
methdecls[i] = fmt.Sprintf(`
|
|
%s
|
|
{
|
|
%s%s(%s);
|
|
}
|
|
`,mp,ret,gname + gnames[i],strings.Join(vnames[i],", "))
|
|
methdecls[i] = fmt.Sprintf(`
|
|
%s
|
|
{
|
|
%s%s(%s);
|
|
}
|
|
`,mp,ret,gname + gnames[i],strings.Join(vnames[i],", "))
|
|
if sub && i < sms {
|
|
smethdecls[i] = fmt.Sprintf(`
|
|
%s
|
|
{
|
|
%s[super %s];
|
|
}
|
|
`,smp,ret,strings.Join(vpnames[i]," "))
|
|
sfundecls[i] = fmt.Sprintf(`
|
|
%s
|
|
{
|
|
%s[(%s*)self super_%s];
|
|
}
|
|
`,sfp,ret,dname,strings.Join(vpnames[i]," "))
|
|
}
|
|
}
|
|
ccode.WriteString(fmt.Sprintf(`
|
|
@implementation %s
|
|
%s
|
|
`,dname,strings.Join(methdecls,"\n")))
|
|
if sub {
|
|
ccode.WriteString(strings.Join(smethdecls,"\n"))
|
|
}
|
|
ccode.WriteString(`
|
|
@end
|
|
`)
|
|
if sub {
|
|
ccode.WriteString(strings.Join(sfundecls,"\n"))
|
|
}
|
|
|
|
//3. ObjC constructor function
|
|
ccode.WriteString(fmt.Sprintf(`
|
|
void*
|
|
%sAlloc() {
|
|
return [[%s alloc] autorelease];
|
|
}
|
|
`,dname,dname))
|
|
|
|
//4. Go type
|
|
|
|
gotypes.WriteString(
|
|
types.NewTypeFromString(gname,supr).GoInterfaceDecl())
|
|
|
|
//5. Go constructor
|
|
gocode.WriteString(fmt.Sprintf(`
|
|
func %sAlloc() %s {
|
|
ret := %s{}
|
|
ret.ptr = unsafe.Pointer(C.%sAlloc())
|
|
return ret
|
|
}
|
|
`,gname,gname,gname,dname))
|
|
|
|
//6. Go dispatch database for callbacks
|
|
dispitems := make([]string,len(gnames))
|
|
sdispitems := make([]string,sms)
|
|
for i,n := range gnames {
|
|
if !sub || sms == 0 {
|
|
gtypes[i] = gtypes[i][1:]
|
|
}
|
|
dispitems[i] = fmt.Sprintf(
|
|
` %s func(%s)%s`,n,strings.Join(gtypes[i],", "),grtypes[i])
|
|
if sub && i < sms {
|
|
sdispitems[i] = fmt.Sprintf(
|
|
` %s func(%s)%s`,n,strings.Join(gtypes[i][1:],", "),grtypes[i])
|
|
}
|
|
}
|
|
gocode.WriteString(fmt.Sprintf(`
|
|
type %sDispatch struct {
|
|
%s
|
|
}
|
|
var %sLookup map[unsafe.Pointer]%sDispatch =
|
|
map[unsafe.Pointer]%sDispatch{}
|
|
`,gname,strings.Join(dispitems,"\n"),gname,gname,gname))
|
|
if sub && sms > 0 {
|
|
gocode.WriteString(fmt.Sprintf(`
|
|
type %sSupermethods struct {
|
|
%s
|
|
}
|
|
`,gname,strings.Join(sdispitems,"\n")))
|
|
}
|
|
//To create (per method):
|
|
cprotos.WriteString("\n\n")
|
|
for i,m := range methods {
|
|
//1. ObjC function prototypes for go exports
|
|
_,_,ctps := w.cparamlist(m)
|
|
cprotos.WriteString(fmt.Sprintf(
|
|
`%s %s%s(%s);
|
|
`,crtypes[i],gname,gnames[i],ctps))
|
|
//2. Go callback registration functions
|
|
gocode.WriteString(fmt.Sprintf(`
|
|
func (d %s) %sCallback(f func(%s)%s) {
|
|
dispatch := %sLookup[d.Ptr()]
|
|
dispatch.%s = f
|
|
%sLookup[d.Ptr()] = dispatch
|
|
}
|
|
`,gname,gnames[i],strings.Join(gtypes[i],", "),grtypes[i],gname,gnames[i],gname))
|
|
//3. Go exported callback function wrappers
|
|
earglist := []string{"o unsafe.Pointer"}
|
|
garglist := []string{}
|
|
gargconv := []string{}
|
|
if sub && sms > 0 {
|
|
garglist = []string{"super"}
|
|
}
|
|
for j := 1; j < len(vnames[i]); j++ {
|
|
earglist = append(earglist,vnames[i][j] + " " + getypes[i][j])
|
|
var gt2 string
|
|
if sub {
|
|
gt2 = gtypes[i][j]
|
|
} else {
|
|
gt2 = gtypes[i][j-1]
|
|
}
|
|
if types.IsGoInterface(gt2) {
|
|
gt2 = "Id"
|
|
}
|
|
if types.ShouldWrap(gt2) || gt2 == "Id" {
|
|
garglist = append(garglist,fmt.Sprintf(
|
|
`a%d`,j))
|
|
gargconv = append(gargconv,fmt.Sprintf(
|
|
` a%d := %s{}; a%d.ptr = %s`,j,gt2,j,vnames[i][j]))
|
|
} else {
|
|
garglist = append(garglist,fmt.Sprintf(
|
|
`(%s)(%s)`,gt2,vnames[i][j]))
|
|
}
|
|
}
|
|
retdecl := ""
|
|
retname := ""
|
|
retn := ""
|
|
retnparen := ""
|
|
crtype := ""
|
|
if cgtypes[i] != "C.void" {
|
|
retdecl = "var ret " + cgtypes[i] + "\n\t"
|
|
retname = " ret"
|
|
if cgtypes[i] == "unsafe.Pointer" {
|
|
retn = "return unsafe.Pointer("
|
|
crtype = " unsafe.Pointer"
|
|
if types.ShouldWrap(m.Type.GoType()) {
|
|
retnparen = ".Ptr()"
|
|
}
|
|
} else {
|
|
retn = "return (" + cgtypes[i] + ")("
|
|
crtype = " " + cgtypes[i]
|
|
}
|
|
retnparen = retnparen + ")"
|
|
}
|
|
sdispentries := make([]string,sms)
|
|
for i,_ := range sdispentries {
|
|
sdispentries[i] = fmt.Sprintf(
|
|
` self.Super%s`,gnames[i])
|
|
}
|
|
sper := ""
|
|
if sub && sms > 0 {
|
|
sper = fmt.Sprintf(
|
|
` self := (*%s)(o)
|
|
super := %sSupermethods{
|
|
%s,
|
|
}
|
|
`,gname,gname,strings.Join(sdispentries,",\n"))
|
|
}
|
|
if len(gargconv) > 0 {
|
|
retn = "\n " + retn
|
|
} else {
|
|
retn = " " + retn
|
|
}
|
|
goexports.WriteString(fmt.Sprintf(`
|
|
//export %s%s
|
|
func %s%s(%s)%s {
|
|
%scb := %sLookup[o].%s
|
|
if cb == nil { return%s }
|
|
%s%s%scb(%s)%s
|
|
}
|
|
`,gname,gnames[i],gname,gnames[i],strings.Join(earglist,", "),crtype,retdecl,gname,gnames[i],retname,sper,strings.Join(gargconv,"\n"),retn,strings.Join(garglist,", "),retnparen))
|
|
//4. Go wrapper functions for superclass methods
|
|
if !sub || i >= sms { continue } // for subclasses only
|
|
grtype := m.Type.GoType()
|
|
if grtype == "Void" {
|
|
grtype = ""
|
|
}
|
|
if types.IsGoInterface(grtype) {
|
|
grtype = "Id"
|
|
}
|
|
if grtype == "BOOL" {
|
|
grtype = "bool"
|
|
}
|
|
if sub {
|
|
gocode.WriteString(fmt.Sprintf(`
|
|
func (o %s) Super%s(%s) %s {
|
|
`,gname,gnames[i],strings.Join(earglist[1:],", "), grtype))
|
|
ns,snames,tps,_ := w.gpntp(m)
|
|
lparm := len(tps)-1
|
|
if len(tps) > 0 && tps[lparm].Variadic {
|
|
vn := ns[lparm]
|
|
vn = vn[:len(vn)-1]
|
|
ns[lparm] = vn
|
|
gocode.WriteString(fmt.Sprintf(
|
|
` var %s [%d]unsafe.Pointer
|
|
for i,o := range %ss {
|
|
%s[i] = o.Ptr()
|
|
}
|
|
`,vn,w.Vaargs,vn,vn))
|
|
}
|
|
gocode.WriteString(` ` + types.GoToC(dname + "_super_"+m.Name,ns,snames,m.Type,tps,false) + "\n}\n")
|
|
}
|
|
}
|
|
w.cCode.WriteString(cprotos.String())
|
|
w.cCode.WriteString(ccode.String())
|
|
w.goTypes.WriteString(gotypes.String())
|
|
w.goCode.WriteString(gocode.String())
|
|
w.goExports.WriteString(goexports.String())
|
|
}
|
|
|
|
|
|
func (w *Wrapper) Wrap(toproc []string) {
|
|
if w.Package == "" { w.Package = "ns" }
|
|
err := os.MkdirAll(w.Package,0755)
|
|
if err != nil {
|
|
fmt.Printf("Error creating directory '%s'\n%s\n",w.Package,err)
|
|
os.Exit(-1)
|
|
}
|
|
of,err := os.Create(path.Join(w.Package,"main.go"))
|
|
if err != nil {
|
|
fmt.Printf("Error opening file %s\n%s\n",path.Join(w.Package,"main.go"),err)
|
|
os.Exit(-1)
|
|
}
|
|
ef,err := os.Create(path.Join(w.Package,"exports.go"))
|
|
if err != nil {
|
|
fmt.Printf("Error opening file %s\n%s\n",path.Join(w.Package,"exports.go"),err)
|
|
os.Exit(-1)
|
|
}
|
|
fmt.Printf("Writing output to %s\n",path.Join(w.Package,"main.go"))
|
|
pInterfaces := map[string]*Interface{}
|
|
//Note: the following code eliminates duplicates, so it is acceptable
|
|
//to have duplicate interfaces in 'toproc'
|
|
for _,iface := range toproc {
|
|
pInterfaces[iface] = w.Interfaces[iface]
|
|
}
|
|
//FIXME: sort pInterfaces
|
|
for _,i := range pInterfaces {
|
|
if i == nil {
|
|
continue
|
|
}
|
|
w.processType(types.NewTypeFromString(i.GoName,""))
|
|
if i.Name == "NSString" {
|
|
w.StringHelpers()
|
|
}
|
|
if i.Name == "NSEnumerator" {
|
|
w.EnumeratorHelpers()
|
|
}
|
|
gname := i.GoName
|
|
if types.IsGoInterface(i.GoName) {
|
|
gname = "Id"
|
|
}
|
|
fmt.Printf("Interface %s: %d properties, %d class methods, %d instance methods\n",
|
|
i.Name, len(i.Properties), len(i.ClassMethods.Methods), len(i.InstanceMethods.Methods))
|
|
|
|
w.goCode.WriteString(fmt.Sprintf(`
|
|
func %sAlloc() %s {
|
|
ret := %s{}
|
|
ret.ptr = unsafe.Pointer(C.%sAlloc())
|
|
return ret
|
|
}
|
|
`,i.GoName,gname,gname,i.Name))
|
|
|
|
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 {
|
|
if Debug {
|
|
fmt.Printf(" property: %s (%s)\n", p.Name, p.Type.CType())
|
|
}
|
|
}
|
|
for _,m := range i.ClassMethods.Methods {
|
|
w.ProcessMethod(m)
|
|
}
|
|
for _,m := range i.InstanceMethods.Methods {
|
|
w.ProcessMethod(m)
|
|
}
|
|
// add methods for Protocols that this interface implements
|
|
for _,p := range i.Protocols {
|
|
prot,ok := w.Protocols[p]
|
|
if !ok {
|
|
fmt.Printf("Failed to find protocol %s for interface %s\n",p,i.Name)
|
|
os.Exit(-1)
|
|
}
|
|
for _,m := range prot.ClassMethods.Methods {
|
|
w.ProcessMethodForClass(m,i.Name)
|
|
}
|
|
for _,m := range prot.InstanceMethods.Methods {
|
|
w.ProcessMethodForClass(m,i.Name)
|
|
}
|
|
}
|
|
}
|
|
for _,m := range w.Functions {
|
|
//fmt.Printf("Processing function %s %s\n",m.Type.CType(),m.Name)
|
|
w.ProcessFunction(m)
|
|
}
|
|
for _,e := range w.NamedEnums {
|
|
w.ProcessEnum(e)
|
|
}
|
|
for _,e := range w.AnonEnums {
|
|
w.ProcessEnum(e)
|
|
}
|
|
for n,p := range w.Delegates {
|
|
w.ProcessDelegate(n,p)
|
|
}
|
|
for n,s := range w.Subclasses {
|
|
w.ProcessSubclass(n,s)
|
|
}
|
|
fmt.Printf("%d functions\n", len(w.Functions))
|
|
fmt.Printf("%d enums\n", len(w.NamedEnums) + len(w.AnonEnums))
|
|
of.WriteString("package " + w.Package + "\n\n")
|
|
|
|
of.WriteString(w.cgoFlags.String() + "\n")
|
|
of.WriteString(w.cImports.String() + "\n")
|
|
|
|
of.WriteString(w.cCode.String())
|
|
of.WriteString(`
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
`)
|
|
of.WriteString(w.goTypes.String())
|
|
of.WriteString(w.goConst.String())
|
|
of.WriteString(w.goHelpers.String())
|
|
of.WriteString(w.goCode.String())
|
|
of.Close()
|
|
|
|
if len(w.Delegates) > 0 || len(w.Subclasses) > 0 {
|
|
ef.WriteString("package " + w.Package + "\n\n")
|
|
ef.WriteString(w.cgoFlags.String() + "\n")
|
|
ef.WriteString(w.cImports.String() + "\n")
|
|
ef.WriteString(`
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
`)
|
|
ef.WriteString(w.goExports.String())
|
|
ef.Close()
|
|
} else {
|
|
ef.Close()
|
|
err := os.Remove(path.Join(w.Package,"exports.go"))
|
|
if err != nil {
|
|
fmt.Printf("Error removing 'exports.go'. %s\n",err)
|
|
os.Exit(-1)
|
|
}
|
|
}
|
|
}
|