Can Go\'s Method Set on Pointer Types Be Called with Regular Types?

Go Method Sets: Can You Call Methods of Pointer Types on Regular Types?

The Go specification defines the method set of a type as all methods with a receiver type matching that type. However, it also states that the method set of a pointer type (*T) includes both its own methods and the methods of its corresponding non-pointer type (T). This raises the question: can you call methods of pointer types on regular types?

Despite the specification's wording, the answer is no. You cannot directly invoke a method designed to be called on a pointer type (*T) using a regular type (T). This is because method calls must match the receiver type exactly.

However, the compiler provides a clever workaround. It automatically dereferences regular type receivers and invokes the pointer type method instead. This is equivalent to manually dereferencing the receiver and calling the pointer type method explicitly: user.SayWat() becomes (&user).SayWat().

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