57         inline region(const region& rhs)   in region()
58             : rects(rhs.rects), count(rhs.count), dx(rhs.dx), dy(rhs.dy) { }  in region()
72     inline region_operator(uint32_t op, const region& lhs, const region& rhs)  in region_operator()  argument
73         : op_mask(op), spanner(lhs, rhs)   in region_operator()
80             SpannerInner spannerInner(spanner.lhs, spanner.rhs);  in operator()
164         region rhs;  variable
168         : lhs(_lhs), rhs(_rhs)  in Spanner()
174             if (rhs.count) {  in Spanner()
175                 SpannerBase::rhs_head = rhs.rects->top      + rhs.dy;  in Spanner()
176                 SpannerBase::rhs_tail = rhs.rects->bottom   + rhs.dy;  in Spanner()
181             return !rhs.count && !lhs.count;  in isDone()
193                 advance(rhs, SpannerBase::rhs_head, SpannerBase::rhs_tail);  in next()
225         region rhs;  variable
229             : lhs(_lhs), rhs(_rhs)  in SpannerInner()
244                 if (rhs.count) {  in prepare()
245                     SpannerBase::rhs_head = rhs.rects->left  + rhs.dx;  in prepare()
246                     SpannerBase::rhs_tail = rhs.rects->right + rhs.dx;  in prepare()
253                 if (rhs.count) {  in prepare()
254                     SpannerBase::rhs_head = rhs.rects->left  + rhs.dx;  in prepare()
255                     SpannerBase::rhs_tail = rhs.rects->right + rhs.dx;  in prepare()
274                 advance(rhs, SpannerBase::rhs_head, SpannerBase::rhs_tail);  in next()