Re: Comparing two object classes
Re: Comparing two object classes
- Subject: Re: Comparing two object classes
- From: Tito Ciuro <email@hidden>
- Date: Fri, 1 Jul 2005 00:11:50 -0400
Hi Sherm,
Thanks for the help.
I oversimplified the problem, so the solution you propose doesn't
work. Here's why:
- (BOOL)verifyParameters:(NSDictionary*)info forMethod:(NSString*)
methodName
{
NSArray *someParams = [[info objectForKey:MyParamsKey]allKeys];
BOOL paramsAreFine = NO;
if ([someParams count]) {
NSString *bundlePath = [[NSBundle bundleForClass:[self
class]]bundlePath];
NSString *infoPlistPath = [NSString stringWithFormat:@"%@/
Contents/Info.plist", bundlePath];
NSDictionary *tempDict = [[NSDictionary alloc]
initWithContentsOfFile:infoPlistPath];
NSDictionary *paramsInfo = [[[tempDict
objectForKey:MyParamsKey];
if (paramsInfo) {
int i, count = [someParams count];
paramsAreFine = YES;
for (i = 0; i < count; i++) {
id passedObject = [someParams objectAtIndex:i];
Class paramOriginalType = [[paramsInfo
objectForKey:object]class];
if (![passedObject isKindOfClass:paramOriginalType]) {
paramsAreFine = NO;
break;
}
}
[tempDict release];
}
}
return paramsAreFine;
}
I'm trying to make this method a generic datatype verification
method. Any ideas how to make this work?
Thanks again,
-- Tito
On 30/06/2005, at 23:54, Sherm Pendley wrote:
On Jun 30, 2005, at 11:42 PM, Tito Ciuro wrote:
A method receives an object of type id. I want to make sure that
the object is a string, so I'm using isKindOfClass. The problem is
that sometimes the object is a NSConstantString and other times a
NSCFString, so when the object passed is NSConstantString,
isKindOfClass returns NO. Since both objects are strings, what
test/comparison would return YES?
Both of those should descend from NSString, so I'd try:
if ([aString isKindOfClass:[NSString class]]) {
// Yep, it's a string
}
sherm--
Cocoa programming in Perl: http://camelbones.sourceforge.net
Hire me! My resume: http://www.dot-app.org
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