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Wojciech Nagrodzki 2014-01-13 23:02:29 +01:00
parent 444f9156bb
commit 144376d4e7
Signed by: wnagrodzki
GPG key ID: E9D0EB0302264569
2 changed files with 10 additions and 3 deletions
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Cocoa Programming Guidelines.pdf
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Cocoa Programming Guidelines.tex
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@ -126,7 +126,7 @@
\tableofcontents \tableofcontents
\section{Visual Appearance} \section{Code Appearance}
Hardly any software is maintained for its whole life by the original author. Writing code in unified way helps engineers to understand it more quickly. Hardly any software is maintained for its whole life by the original author. Writing code in unified way helps engineers to understand it more quickly.
@ -499,8 +499,15 @@ Instance subclasses may be in an inconsistent state during init and dealloc meth
Creating instances of abstract classes can be thwarted with following assertion. Creating instances of abstract classes can be thwarted with following assertion.
\begin{codelisting} \begin{codelisting}
NSAssert1([self isMemberOfClass:[MyAbstractClass class]] == NO, - (id)init
{
self = [super init];
if (self) {
NSAssert1([self isMemberOfClass:[MyAbstractClass class]] == NO,
@"%@ is an abstract class. Please do not create instances of it.", [self class]); @"%@ is an abstract class. Please do not create instances of it.", [self class]);
}
return self;
}
\end{codelisting} \end{codelisting}