On Dec 5, 2008, at 10:55 PM, Jerry Krinock wrote:
On 2008 Dec, 05, at 18:40, Chris Hanson wrote:
Dot syntax compiles to objc_msgSend* just like bracket syntax
does. However, it must see either getter/setter declarations or an
@property declaration to know what selector to put in the
objc_msgSend* that it compiles to.
I understand why this must be so, but it makes the dot syntax
difficult to use in practice. When writing a message, I have to
stop and think, "Gee did I declare that as a property or not?" If
I'm not sure, and have to click to my documentation, it's faster to
just put in the square brackets.
Also, it seems to me that that dot syntax makes more fragile code.
For example, say that I declare a 'name' property. Then, next week
I decide that I need a more granular name, so replace this property
with a firstName and lastName property, and a -name accessor which
concatenates firstName and lastName.
Why would you refactor your code so that name is no longer a property?
Name is still a conceptually a property, but it is dependent on
firstName and lastName, and read only now.
@property(nonatomic, copy) NSString *firstName;
@property(nonatomic, copy) NSString *lastName;
@property(nonatomic, readonly) NSString *name; /* or fullName */
Jim
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