Question

I have a custom view onto which I draw some graphics from the drawrect function, which works fine.

However I like to draw based on the contens of an array I pass on the the view just before I do a setNeedsDisplay. In the drawRect function If I uses a NSString or NSarray from withing drawRect I get a nested functions error which I do not understand ?

Here’s my code:

//  MyView.h
#import <UIKit/UIKit.h>

@interface MyView : UIView {
 }
@end

//  MyView.m
#import "MyView.h"

@implementation MyView

CGContextRef c;

CGFloat black[4] = {0.0f, 0.0f, 0.0f, 1.0f};

- (id)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        // Initialization code
    }
    return self;
}

- (void)drawRect:(CGRect)rect {
    c = UIGraphicsGetCurrentContext();

    CGContextSetStrokeColor(c, black);

     //Gives a nested functions are disabled error at compiletime
     NSString nsz * = @"test";      
}

- (void)dealloc {
    [super dealloc];
}

@end

Answer 1

the bottom line is that the “nested function” error is just a “general” error you get when you have a really bad syntax error.

Such as forgetting to close a bracket. Or a stray operator.

(Edit — in fact in this case it was a stray ‘ * ‘ operator.)

It actually has nothing to do with “nested functions” (usually), and, the problem could be almost anywhere in the file or even the previous file.

Sorry I could not spot the typo!