fromFunctionPointer static method

ObjCBlock<NSRange Function(Pointer<Void>, Long)> fromFunctionPointer(
  1. Pointer<NativeFunction<NSRange Function(Pointer<Void>, Long)>> ptr
)

Creates a block from a C function pointer.

This block must be invoked by native code running on the same thread as the isolate that registered it. Invoking the block on the wrong thread will result in a crash.

Implementation

static objc.ObjCBlock<objc.NSRange Function(ffi.Pointer<ffi.Void>, ffi.Long)>
fromFunctionPointer(
  ffi.Pointer<
    ffi.NativeFunction<
      NSRange Function(ffi.Pointer<ffi.Void> arg0, NSInteger arg1)
    >
  >
  ptr,
) => objc.ObjCBlock<objc.NSRange Function(ffi.Pointer<ffi.Void>, ffi.Long)>(
  objc.newPointerBlock(
    _ObjCBlock_NSRange_ffiVoid_NSInteger_fnPtrCallable,
    ptr.cast(),
  ),
  retain: false,
  release: true,
);