[cmap] Rewrite set_for() slightly
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@ -1482,12 +1482,20 @@ struct SubtableUnicodesCache {
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SubtableUnicodesCache(const void* cmap_base)
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SubtableUnicodesCache(const void* cmap_base)
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: base(cmap_base), cached_unicodes() {}
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: base(cmap_base), cached_unicodes() {}
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hb_set_t* set_for(const EncodingRecord* record)
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hb_set_t* set_for (const EncodingRecord* record)
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{
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{
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if (!cached_unicodes.has ((intptr_t) record)) {
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if (!cached_unicodes.has ((intptr_t) record))
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if (unlikely (!cached_unicodes.set ((intptr_t) record, hb::unique_ptr<hb_set_t> {hb_set_create ()})))
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{
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hb_set_t *s = hb_set_create ();
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if (unlikely (s->in_error ()))
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return hb_set_get_empty ();
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return hb_set_get_empty ();
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(base+record->subtable).collect_unicodes (cached_unicodes.get ((intptr_t) record));
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(base+record->subtable).collect_unicodes (s);
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if (unlikely (!cached_unicodes.set ((intptr_t) record, hb::unique_ptr<hb_set_t> {s})))
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return hb_set_get_empty ();
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return s;
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}
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}
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return cached_unicodes.get ((intptr_t) record);
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return cached_unicodes.get ((intptr_t) record);
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}
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}
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