方法声明中的语法错误：预期为“)”名字前
我对遇到的错误感到非常困惑。我有以下代码：
在 View1.m 中，我进行此调用：
[iconView addIconWithType:IconTypeStandard];
IconView.h
typedef enum {
IconTypeStandard = 0,
IconTypeNew = 1,
} IconType;
-(void)addIconWithType:(IconType)iconType;
IconView.m
-(void)addIconWithType:(IconType)iconType {
...
}
Icon.h
#import "IconView.h"
@interface Icon : UIView {
}
-(Icon *)initWithFrame:(CGRect)frame;
-(void)type:(IconType)iconType;
该行导致“IconType”之前出现“预期”)“错误，但我不知道为什么？
图标.m
-(void)type:(IconType)iconType {
...
}
I'm very confused about an error I'm getting. I have the following code:
In View1.m I make this call:
[iconView addIconWithType:IconTypeStandard];
IconView.h
typedef enum {
IconTypeStandard = 0,
IconTypeNew = 1,
} IconType;
-(void)addIconWithType:(IconType)iconType;
IconView.m
-(void)addIconWithType:(IconType)iconType {
...
}
Icon.h
#import "IconView.h"
@interface Icon : UIView {
}
-(Icon *)initWithFrame:(CGRect)frame;
-(void)type:(IconType)iconType;
That line is causing an error of 'Expected ')' before 'IconType'', but i have no idea why?
Icon.m
-(void)type:(IconType)iconType {
...
}
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评论（2）
我猜测存在周期性包含。
Icon.h引用IconView.h，反之亦然。由于typedef出现在Icon.h中的 import 语句之后，因此它会引发错误，因为它还找不到IconType。您可能应该声明
@class IconView;并将#import "IconView.h"移动到Icon.m。I am guessing there is a cyclical inclusion.
Icon.hrefers toIconView.hand vice versa. Since thetypedefcomes after the import statement inIcon.hit is raising the error as it can't findIconTypeyet.You should probably declare
@class IconView;and move the#import "IconView.h"toIcon.m.您的枚举中有一个尾随逗号
You have a trailing comma in your enum