47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#ifndef OT_LAYOUT_GPOS_PAIRPOS_HH
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#define OT_LAYOUT_GPOS_PAIRPOS_HH
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#include "PairPosFormat1.hh"
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#include "PairPosFormat2.hh"
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namespace OT {
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namespace Layout {
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namespace GPOS_impl {
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struct PairPos
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{
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protected:
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union {
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HBUINT16 format; /* Format identifier */
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PairPosFormat1_3<SmallTypes> format1;
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PairPosFormat2_4<SmallTypes> format2;
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#ifndef HB_NO_BEYOND_64K
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PairPosFormat1_3<MediumTypes> format3;
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PairPosFormat2_4<MediumTypes> format4;
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#endif
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} u;
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public:
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template <typename context_t, typename ...Ts>
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typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const
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{
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TRACE_DISPATCH (this, u.format);
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if (unlikely (!c->may_dispatch (this, &u.format))) return_trace (c->no_dispatch_return_value ());
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switch (u.format) {
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case 1: return_trace (c->dispatch (u.format1, std::forward<Ts> (ds)...));
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case 2: return_trace (c->dispatch (u.format2, std::forward<Ts> (ds)...));
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#ifndef HB_NO_BEYOND_64K
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case 3: return_trace (c->dispatch (u.format3, std::forward<Ts> (ds)...));
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case 4: return_trace (c->dispatch (u.format4, std::forward<Ts> (ds)...));
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#endif
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default:return_trace (c->default_return_value ());
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}
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}
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};
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}
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}
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}
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#endif // OT_LAYOUT_GPOS_PAIRPOS_HH
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