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