Skia源码中的类分析

1、

class SkNoncopyable

{
public:
    SkNoncopyable() {}
    
private:
    SkNoncopyable(const SkNoncopyable&);
    SkNoncopyable& operator=(const SkNoncopyable&);

};

SkNoncopyable is the base class for objects that may do not want to
be copied. It hides its copy-constructor and its assignment-operator.

隐藏了拷贝构造函数和赋值运算符，防止此类被复制。