30 struct PatchList {  struct
34   static PatchList Mk(uint32 p);
38   static void Patch(Prog::Inst *inst0, PatchList l, uint32 v);
41   static PatchList Deref(Prog::Inst *inst0, PatchList l);
44   static PatchList Append(Prog::Inst *inst0, PatchList l1, PatchList l2);
47 static PatchList nullPatchList;
50 PatchList PatchList::Mk(uint32 p) {  in Mk()
51   PatchList l;  in Mk()
57 PatchList PatchList::Deref(Prog::Inst* inst0, PatchList l) {  in Deref()
67 void PatchList::Patch(Prog::Inst *inst0, PatchList l, uint32 val) {  in Patch()
81 PatchList PatchList::Append(Prog::Inst* inst0, PatchList l1, PatchList l2) {  in Append()
87   PatchList l = l1;  in Append()
89     PatchList next = PatchList::Deref(inst0, l);  in Append()
107   PatchList end;
111   Frag(uint32 begin, PatchList end) : begin(begin), end(end) {}  in Frag()
315     PatchList::Patch(inst_, a.end, b.begin);  // in case refs to a somewhere  in Cat()
321     PatchList::Patch(inst_, b.end, a.begin);  in Cat()
325   PatchList::Patch(inst_, a.end, b.begin);  in Cat()
342   return Frag(id, PatchList::Append(inst_, a.end, b.end));  in Alt()
358   PatchList::Patch(inst_, a.end, id);  in Star()
361     return Frag(id, PatchList::Mk(id << 1));  in Star()
364     return Frag(id, PatchList::Mk((id << 1) | 1));  in Star()
380   PatchList pl;  in Quest()
383     pl = PatchList::Mk(id << 1);  in Quest()
386     pl = PatchList::Mk((id << 1) | 1);  in Quest()
388   return Frag(id, PatchList::Append(inst_, pl, a.end));  in Quest()
407   return Frag(id, PatchList::Mk(id << 1));  in ByteRange()
416   return Frag(id, PatchList::Mk(id << 1));  in Nop()
444   return Frag(id, PatchList::Mk(id << 1));  in EmptyWidth()
454   PatchList::Patch(inst_, a.end, id+1);  in Capture()
456   return Frag(id, PatchList::Mk((id+1) << 1));  in Capture()
488     PatchList::Patch(inst_, f.end, next);  in UncachedRuneByteSuffix()
490     rune_range_.end = PatchList::Append(inst_, rune_range_.end, f.end);  in UncachedRuneByteSuffix()