Make your base class constructor take the role as an argument. Then the subclasses can just pass in the value they want to use to initialize it e.g., AccessibilityObject(AccessibilityRole role) : m_role(role) { } and then in the subclass AccessibilityImageMapLink() : AccessibilityObject(WebCoreLinkRole) { } Another option is to just forego the member variable storage and make a virtual function that returns the role. That only works if the role can be determined from the subclasses though. virtual AccessibilityRole role() const { return WebCoreLinkRole; } Hope this helps, dave (hyatt@apple.com) On Aug 3, 2009, at 5:51 PM, Chris Fleizach wrote:
I have added
protected: AccessibilityRole m_role;
to AccessibilityObject.h
I want to initialize that variable in subclasses of AccessibilityObject, like so
AccessibilityImageMapLink::AccessibilityImageMapLink() : m_role(WebCoreLinkRole)
but the compiler says
/Volumes/data/WebKit/WebCore/accessibility/ AccessibilityImageMapLink.cpp:48: error: class ‘WebCore::AccessibilityImageMapLink’ does not have any field named ‘m_role’
even though this works fine
AccessibilityImageMapLink::AccessibilityImageMapLink() { m_role = WebCoreLinkRole; }
any tips?
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