245     if (fRec != &gEmptyRec) {  in validate()
246         SkASSERT(fRec->fLength > 0);  in validate()
247         SkASSERT(fRec->fRefCnt > 0);  in validate()
248         SkASSERT(0 == fRec->data()[fRec->fLength]);  in validate()
255 SkString::SkString() : fRec(const_cast<Rec*>(&gEmptyRec)) {  in SkString()
259     fRec = AllocRec(nullptr, len);  in SkString()
265     fRec = AllocRec(text, len);  in SkString()
269     fRec = AllocRec(text, len);  in SkString()
275     fRec = RefRec(src.fRec);  in SkString()
281     fRec = src.fRec;  in SkString()
282     src.fRec = const_cast<Rec*>(&gEmptyRec);  in SkString()
288     if (fRec->fLength) {  in ~SkString()
289         SkASSERT(fRec->fRefCnt > 0);  in ~SkString()
290         if (sk_atomic_dec(&fRec->fRefCnt) == 1) {  in ~SkString()
291             sk_free(fRec);  in ~SkString()
297     return fRec == src.fRec || this->equals(src.c_str(), src.size());  in equals()
307     return fRec->fLength == len && !memcmp(fRec->data(), text, len);  in equals()
313     if (fRec != src.fRec) {  in operator =()
323     if (fRec != src.fRec) {  in operator =()
341     if (fRec->fLength) {  in reset()
342         SkASSERT(fRec->fRefCnt > 0);  in reset()
343         if (sk_atomic_dec(&fRec->fRefCnt) == 1) {  in reset()
344             sk_free(fRec);  in reset()
348     fRec = const_cast<Rec*>(&gEmptyRec);  in reset()
354     if (fRec->fLength) {  in writable_str()
355         if (fRec->fRefCnt > 1) {  in writable_str()
356             Rec* rec = AllocRec(fRec->data(), fRec->fLength);  in writable_str()
357             if (sk_atomic_dec(&fRec->fRefCnt) == 1) {  in writable_str()
361                 sk_free(fRec);  in writable_str()
363             fRec = rec;  in writable_str()
366     return fRec->data();  in writable_str()
378     } else if (1 == fRec->fRefCnt && len <= fRec->fLength) {  in set()
386         fRec->fLength = SkToU32(len);  in set()
387     } else if (1 == fRec->fRefCnt && (fRec->fLength >> 2) == (len >> 2)) {  in set()
394         fRec->fLength = SkToU32(len);  in set()
415     } else if (count <= fRec->fLength) {  in setUTF16()
417         if (count < fRec->fLength) {  in setUTF16()
442         size_t length = fRec->fLength;  in insert()
463         if (1 == fRec->fRefCnt && (length >> 2) == ((length + len) >> 2)) {  in insert()
472             fRec->fLength = SkToU32(length + len);  in insert()
477             SkString    tmp(fRec->fLength + len);  in insert()
481                 memcpy(dst, fRec->data(), offset);  in insert()
484             if (offset < fRec->fLength) {  in insert()
485                 memcpy(dst + offset + len, fRec->data() + offset,  in insert()
486                        fRec->fLength - offset);  in insert()
629     SkTSwap<Rec*>(fRec, other.fRec);  in swap()