51   ParseState State;  member
132 ParseProgress<ResultType> makeParseProgress(ParseState State,  in makeParseProgress()  argument
134   return ParseProgress<ResultType>{State, std::move(Result)};  in makeParseProgress()
153 // Parses a single expected character \c c from \c State, skipping preceding
155 static ExpectedProgress<std::nullopt_t> parseChar(char c, ParseState State) {  in parseChar()  argument
156   State.Input = consumeWhitespace(State.Input);  in parseChar()
157   if (State.Input.empty() || State.Input.front() != c)  in parseChar()
158     return makeParseError(State,  in parseChar()
160   return makeParseProgress(advance(State, 1), std::nullopt);  in parseChar()
164 static ExpectedProgress<std::string> parseId(ParseState State) {  in parseId()  argument
165   State.Input = consumeWhitespace(State.Input);  in parseId()
166   auto Id = State.Input.take_while(  in parseId()
169     return makeParseError(State, "failed to parse name");  in parseId()
170   return makeParseProgress(advance(State, Id.size()), Id.str());  in parseId()
175 static ExpectedProgress<std::string> parseStringId(ParseState State) {  in parseStringId()  argument
176   State.Input = consumeWhitespace(State.Input);  in parseStringId()
177   if (State.Input.empty())  in parseStringId()
178     return makeParseError(State, "unexpected end of input");  in parseStringId()
179   if (!State.Input.consume_front("\""))  in parseStringId()
181         State,  in parseStringId()
184   StringRef Id = State.Input.take_until([](char c) { return c == '"'; });  in parseStringId()
185   if (State.Input.size() == Id.size())  in parseStringId()
186     return makeParseError(State, "unterminated string");  in parseStringId()
188   return makeParseProgress(advance(State, Id.size() + 1), Id.str());  in parseStringId()
196                                             ParseState State) {  in parseSingle()  argument
197   auto P = parseChar('(', State);  in parseSingle()
201   auto E = ParseElement(P->State);  in parseSingle()
205   P = parseChar(')', E->State);  in parseSingle()
209   return makeParseProgress(P->State, Op(std::move(E->Value)));  in parseSingle()
217                                           ParseState State) {  in parsePair()  argument
218   auto P = parseChar('(', State);  in parsePair()
222   auto Left = ParseElement(P->State);  in parsePair()
226   P = parseChar(',', Left->State);  in parsePair()
230   auto Right = ParseElement(P->State);  in parsePair()
234   P = parseChar(')', Right->State);  in parsePair()
238   return makeParseProgress(P->State,  in parsePair()
246 parseRangeSelectorImpl(ParseState State) {  in parseRangeSelectorImpl()  argument
247   auto Id = parseId(State);  in parseRangeSelectorImpl()
253     return parseSingle(parseStringId, *Op, Id->State);  in parseRangeSelectorImpl()
256     return parseSingle(parseRangeSelectorImpl, *Op, Id->State);  in parseRangeSelectorImpl()
259     return parsePair(parseStringId, *Op, Id->State);  in parseRangeSelectorImpl()
262     return parsePair(parseRangeSelectorImpl, *Op, Id->State);  in parseRangeSelectorImpl()
264   return makeParseError(State, "unknown selector name: " + OpName);  in parseRangeSelectorImpl()
268   ParseState State = {Input, Input};  in parseRangeSelector()  local
269   ExpectedProgress<RangeSelector> Result = parseRangeSelectorImpl(State);  in parseRangeSelector()
272   State = Result->State;  in parseRangeSelector()
274   State.Input = consumeWhitespace(State.Input);  in parseRangeSelector()
275   if (State.Input.empty())  in parseRangeSelector()
277   return makeParseError(State, "unexpected input after selector");  in parseRangeSelector()