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// 27 february 2014
package main
import (
"fmt"
"unsafe"
)
// #cgo LDFLAGS: -lobjc -framework Foundation
// #include <stdlib.h>
// #include <objc/message.h>
// #include <objc/objc.h>
// #include <objc/runtime.h>
// /* cgo doesn't handle ... */
// id objc_msgSend_noargs(id obj, SEL sel) { return objc_msgSend(obj, sel); }
// id objc_msgSend_strarg(id obj, SEL sel, char *a) { return objc_msgSend(obj, sel, a); }
import "C"
func main() {
_NSString := C.CString("NSString")
defer C.free(unsafe.Pointer(_NSString))
_stringWithUTF8String := C.CString("stringWithUTF8String:")
defer C.free(unsafe.Pointer(_stringWithUTF8String))
_UTF8String := C.CString("UTF8String")
defer C.free(unsafe.Pointer(_UTF8String))
_hello := C.CString("hello, world\n")
defer C.free(unsafe.Pointer(_hello))
NSString := C.objc_getClass(_NSString)
stringWithUTF8String :=
C.sel_getUid(_stringWithUTF8String)
str := C.objc_msgSend_strarg(NSString,
stringWithUTF8String,
_hello)
UTF8String :=
C.sel_getUid(_UTF8String)
res := C.objc_msgSend_noargs(str,
UTF8String)
cres := (*C.char)(unsafe.Pointer(res))
fmt.Printf("%s", C.GoString(cres))
}
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