The number of arguments recorded in the receiver.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
There are always at least two arguments, because an
NSMethodSignature object includes the implicit arguments
_cmd, which are the first two arguments passed to every method implementation.
Getting Information on Argument Types
The number of bytes that the arguments, taken together, occupy on the stack.
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