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Re: Comparing two object classes

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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References: 
 >Comparing two object classes (From: Tito Ciuro <email@hidden>)
 >Re: Comparing two object classes (From: Sherm Pendley <email@hidden>)



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