LLVM  4.0.0
YAMLTraits.cpp
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1 //===- lib/Support/YAMLTraits.cpp -----------------------------------------===//
2 //
3 // The LLVM Linker
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
11 #include "llvm/ADT/SmallString.h"
12 #include "llvm/ADT/Twine.h"
13 #include "llvm/Support/Casting.h"
14 #include "llvm/Support/Errc.h"
16 #include "llvm/Support/Format.h"
20 #include <cctype>
21 #include <cstring>
22 using namespace llvm;
23 using namespace yaml;
24 
25 //===----------------------------------------------------------------------===//
26 // IO
27 //===----------------------------------------------------------------------===//
28 
29 IO::IO(void *Context) : Ctxt(Context) {
30 }
31 
33 }
34 
35 void *IO::getContext() {
36  return Ctxt;
37 }
38 
39 void IO::setContext(void *Context) {
40  Ctxt = Context;
41 }
42 
43 //===----------------------------------------------------------------------===//
44 // Input
45 //===----------------------------------------------------------------------===//
46 
47 Input::Input(StringRef InputContent, void *Ctxt,
48  SourceMgr::DiagHandlerTy DiagHandler, void *DiagHandlerCtxt)
49  : IO(Ctxt), Strm(new Stream(InputContent, SrcMgr, false, &EC)),
50  CurrentNode(nullptr) {
51  if (DiagHandler)
52  SrcMgr.setDiagHandler(DiagHandler, DiagHandlerCtxt);
53  DocIterator = Strm->begin();
54 }
55 
57 }
58 
59 std::error_code Input::error() { return EC; }
60 
61 // Pin the vtables to this file.
62 void Input::HNode::anchor() {}
63 void Input::EmptyHNode::anchor() {}
64 void Input::ScalarHNode::anchor() {}
65 void Input::MapHNode::anchor() {}
66 void Input::SequenceHNode::anchor() {}
67 
68 bool Input::outputting() {
69  return false;
70 }
71 
73  if (DocIterator != Strm->end()) {
74  Node *N = DocIterator->getRoot();
75  if (!N) {
76  assert(Strm->failed() && "Root is NULL iff parsing failed");
78  return false;
79  }
80 
81  if (isa<NullNode>(N)) {
82  // Empty files are allowed and ignored
83  ++DocIterator;
84  return setCurrentDocument();
85  }
86  TopNode = this->createHNodes(N);
87  CurrentNode = TopNode.get();
88  return true;
89  }
90  return false;
91 }
92 
94  return ++DocIterator != Strm->end();
95 }
96 
97 const Node *Input::getCurrentNode() const {
98  return CurrentNode ? CurrentNode->_node : nullptr;
99 }
100 
101 bool Input::mapTag(StringRef Tag, bool Default) {
102  std::string foundTag = CurrentNode->_node->getVerbatimTag();
103  if (foundTag.empty()) {
104  // If no tag found and 'Tag' is the default, say it was found.
105  return Default;
106  }
107  // Return true iff found tag matches supplied tag.
108  return Tag.equals(foundTag);
109 }
110 
111 void Input::beginMapping() {
112  if (EC)
113  return;
114  // CurrentNode can be null if the document is empty.
115  MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);
116  if (MN) {
117  MN->ValidKeys.clear();
118  }
119 }
120 
121 std::vector<StringRef> Input::keys() {
122  MapHNode *MN = dyn_cast<MapHNode>(CurrentNode);
123  std::vector<StringRef> Ret;
124  if (!MN) {
125  setError(CurrentNode, "not a mapping");
126  return Ret;
127  }
128  for (auto &P : MN->Mapping)
129  Ret.push_back(P.first());
130  return Ret;
131 }
132 
133 bool Input::preflightKey(const char *Key, bool Required, bool, bool &UseDefault,
134  void *&SaveInfo) {
135  UseDefault = false;
136  if (EC)
137  return false;
138 
139  // CurrentNode is null for empty documents, which is an error in case required
140  // nodes are present.
141  if (!CurrentNode) {
142  if (Required)
144  return false;
145  }
146 
147  MapHNode *MN = dyn_cast<MapHNode>(CurrentNode);
148  if (!MN) {
149  setError(CurrentNode, "not a mapping");
150  return false;
151  }
152  MN->ValidKeys.push_back(Key);
153  HNode *Value = MN->Mapping[Key].get();
154  if (!Value) {
155  if (Required)
156  setError(CurrentNode, Twine("missing required key '") + Key + "'");
157  else
158  UseDefault = true;
159  return false;
160  }
161  SaveInfo = CurrentNode;
162  CurrentNode = Value;
163  return true;
164 }
165 
166 void Input::postflightKey(void *saveInfo) {
167  CurrentNode = reinterpret_cast<HNode *>(saveInfo);
168 }
169 
170 void Input::endMapping() {
171  if (EC)
172  return;
173  // CurrentNode can be null if the document is empty.
174  MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);
175  if (!MN)
176  return;
177  for (const auto &NN : MN->Mapping) {
178  if (!is_contained(MN->ValidKeys, NN.first())) {
179  setError(NN.second.get(), Twine("unknown key '") + NN.first() + "'");
180  break;
181  }
182  }
183 }
184 
185 void Input::beginFlowMapping() { beginMapping(); }
186 
187 void Input::endFlowMapping() { endMapping(); }
188 
189 unsigned Input::beginSequence() {
190  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode))
191  return SQ->Entries.size();
192  if (isa<EmptyHNode>(CurrentNode))
193  return 0;
194  // Treat case where there's a scalar "null" value as an empty sequence.
195  if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
196  if (isNull(SN->value()))
197  return 0;
198  }
199  // Any other type of HNode is an error.
200  setError(CurrentNode, "not a sequence");
201  return 0;
202 }
203 
204 void Input::endSequence() {
205 }
206 
207 bool Input::preflightElement(unsigned Index, void *&SaveInfo) {
208  if (EC)
209  return false;
210  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
211  SaveInfo = CurrentNode;
212  CurrentNode = SQ->Entries[Index].get();
213  return true;
214  }
215  return false;
216 }
217 
218 void Input::postflightElement(void *SaveInfo) {
219  CurrentNode = reinterpret_cast<HNode *>(SaveInfo);
220 }
221 
222 unsigned Input::beginFlowSequence() { return beginSequence(); }
223 
224 bool Input::preflightFlowElement(unsigned index, void *&SaveInfo) {
225  if (EC)
226  return false;
227  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
228  SaveInfo = CurrentNode;
229  CurrentNode = SQ->Entries[index].get();
230  return true;
231  }
232  return false;
233 }
234 
235 void Input::postflightFlowElement(void *SaveInfo) {
236  CurrentNode = reinterpret_cast<HNode *>(SaveInfo);
237 }
238 
239 void Input::endFlowSequence() {
240 }
241 
242 void Input::beginEnumScalar() {
243  ScalarMatchFound = false;
244 }
245 
246 bool Input::matchEnumScalar(const char *Str, bool) {
247  if (ScalarMatchFound)
248  return false;
249  if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
250  if (SN->value().equals(Str)) {
251  ScalarMatchFound = true;
252  return true;
253  }
254  }
255  return false;
256 }
257 
258 bool Input::matchEnumFallback() {
259  if (ScalarMatchFound)
260  return false;
261  ScalarMatchFound = true;
262  return true;
263 }
264 
265 void Input::endEnumScalar() {
266  if (!ScalarMatchFound) {
267  setError(CurrentNode, "unknown enumerated scalar");
268  }
269 }
270 
271 bool Input::beginBitSetScalar(bool &DoClear) {
272  BitValuesUsed.clear();
273  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
274  BitValuesUsed.insert(BitValuesUsed.begin(), SQ->Entries.size(), false);
275  } else {
276  setError(CurrentNode, "expected sequence of bit values");
277  }
278  DoClear = true;
279  return true;
280 }
281 
282 bool Input::bitSetMatch(const char *Str, bool) {
283  if (EC)
284  return false;
285  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
286  unsigned Index = 0;
287  for (auto &N : SQ->Entries) {
288  if (ScalarHNode *SN = dyn_cast<ScalarHNode>(N.get())) {
289  if (SN->value().equals(Str)) {
290  BitValuesUsed[Index] = true;
291  return true;
292  }
293  } else {
294  setError(CurrentNode, "unexpected scalar in sequence of bit values");
295  }
296  ++Index;
297  }
298  } else {
299  setError(CurrentNode, "expected sequence of bit values");
300  }
301  return false;
302 }
303 
304 void Input::endBitSetScalar() {
305  if (EC)
306  return;
307  if (SequenceHNode *SQ = dyn_cast<SequenceHNode>(CurrentNode)) {
308  assert(BitValuesUsed.size() == SQ->Entries.size());
309  for (unsigned i = 0; i < SQ->Entries.size(); ++i) {
310  if (!BitValuesUsed[i]) {
311  setError(SQ->Entries[i].get(), "unknown bit value");
312  return;
313  }
314  }
315  }
316 }
317 
318 void Input::scalarString(StringRef &S, bool) {
319  if (ScalarHNode *SN = dyn_cast<ScalarHNode>(CurrentNode)) {
320  S = SN->value();
321  } else {
322  setError(CurrentNode, "unexpected scalar");
323  }
324 }
325 
326 void Input::blockScalarString(StringRef &S) { scalarString(S, false); }
327 
328 void Input::setError(HNode *hnode, const Twine &message) {
329  assert(hnode && "HNode must not be NULL");
330  this->setError(hnode->_node, message);
331 }
332 
333 void Input::setError(Node *node, const Twine &message) {
334  Strm->printError(node, message);
336 }
337 
338 std::unique_ptr<Input::HNode> Input::createHNodes(Node *N) {
339  SmallString<128> StringStorage;
340  if (ScalarNode *SN = dyn_cast<ScalarNode>(N)) {
341  StringRef KeyStr = SN->getValue(StringStorage);
342  if (!StringStorage.empty()) {
343  // Copy string to permanent storage
344  KeyStr = StringStorage.str().copy(StringAllocator);
345  }
346  return llvm::make_unique<ScalarHNode>(N, KeyStr);
347  } else if (BlockScalarNode *BSN = dyn_cast<BlockScalarNode>(N)) {
348  StringRef ValueCopy = BSN->getValue().copy(StringAllocator);
349  return llvm::make_unique<ScalarHNode>(N, ValueCopy);
350  } else if (SequenceNode *SQ = dyn_cast<SequenceNode>(N)) {
351  auto SQHNode = llvm::make_unique<SequenceHNode>(N);
352  for (Node &SN : *SQ) {
353  auto Entry = this->createHNodes(&SN);
354  if (EC)
355  break;
356  SQHNode->Entries.push_back(std::move(Entry));
357  }
358  return std::move(SQHNode);
359  } else if (MappingNode *Map = dyn_cast<MappingNode>(N)) {
360  auto mapHNode = llvm::make_unique<MapHNode>(N);
361  for (KeyValueNode &KVN : *Map) {
362  Node *KeyNode = KVN.getKey();
363  ScalarNode *KeyScalar = dyn_cast<ScalarNode>(KeyNode);
364  if (!KeyScalar) {
365  setError(KeyNode, "Map key must be a scalar");
366  break;
367  }
368  StringStorage.clear();
369  StringRef KeyStr = KeyScalar->getValue(StringStorage);
370  if (!StringStorage.empty()) {
371  // Copy string to permanent storage
372  KeyStr = StringStorage.str().copy(StringAllocator);
373  }
374  auto ValueHNode = this->createHNodes(KVN.getValue());
375  if (EC)
376  break;
377  mapHNode->Mapping[KeyStr] = std::move(ValueHNode);
378  }
379  return std::move(mapHNode);
380  } else if (isa<NullNode>(N)) {
381  return llvm::make_unique<EmptyHNode>(N);
382  } else {
383  setError(N, "unknown node kind");
384  return nullptr;
385  }
386 }
387 
388 void Input::setError(const Twine &Message) {
389  this->setError(CurrentNode, Message);
390 }
391 
392 bool Input::canElideEmptySequence() {
393  return false;
394 }
395 
396 //===----------------------------------------------------------------------===//
397 // Output
398 //===----------------------------------------------------------------------===//
399 
400 Output::Output(raw_ostream &yout, void *context, int WrapColumn)
401  : IO(context),
402  Out(yout),
403  WrapColumn(WrapColumn),
404  Column(0),
405  ColumnAtFlowStart(0),
406  ColumnAtMapFlowStart(0),
407  NeedBitValueComma(false),
408  NeedFlowSequenceComma(false),
409  EnumerationMatchFound(false),
410  NeedsNewLine(false) {
411 }
412 
414 }
415 
417  return true;
418 }
419 
421  StateStack.push_back(inMapFirstKey);
422  NeedsNewLine = true;
423 }
424 
425 bool Output::mapTag(StringRef Tag, bool Use) {
426  if (Use) {
427  // If this tag is being written inside a sequence we should write the start
428  // of the sequence before writing the tag, otherwise the tag won't be
429  // attached to the element in the sequence, but rather the sequence itself.
430  bool SequenceElement =
431  StateStack.size() > 1 && (StateStack[StateStack.size() - 2] == inSeq ||
432  StateStack[StateStack.size() - 2] == inFlowSeq);
433  if (SequenceElement && StateStack.back() == inMapFirstKey) {
434  this->newLineCheck();
435  } else {
436  this->output(" ");
437  }
438  this->output(Tag);
439  if (SequenceElement) {
440  // If we're writing the tag during the first element of a map, the tag
441  // takes the place of the first element in the sequence.
442  if (StateStack.back() == inMapFirstKey) {
443  StateStack.pop_back();
444  StateStack.push_back(inMapOtherKey);
445  }
446  // Tags inside maps in sequences should act as keys in the map from a
447  // formatting perspective, so we always want a newline in a sequence.
448  NeedsNewLine = true;
449  }
450  }
451  return Use;
452 }
453 
455  StateStack.pop_back();
456 }
457 
458 std::vector<StringRef> Output::keys() {
459  report_fatal_error("invalid call");
460 }
461 
462 bool Output::preflightKey(const char *Key, bool Required, bool SameAsDefault,
463  bool &UseDefault, void *&) {
464  UseDefault = false;
465  if (Required || !SameAsDefault) {
466  auto State = StateStack.back();
467  if (State == inFlowMapFirstKey || State == inFlowMapOtherKey) {
468  flowKey(Key);
469  } else {
470  this->newLineCheck();
471  this->paddedKey(Key);
472  }
473  return true;
474  }
475  return false;
476 }
477 
478 void Output::postflightKey(void *) {
479  if (StateStack.back() == inMapFirstKey) {
480  StateStack.pop_back();
481  StateStack.push_back(inMapOtherKey);
482  } else if (StateStack.back() == inFlowMapFirstKey) {
483  StateStack.pop_back();
484  StateStack.push_back(inFlowMapOtherKey);
485  }
486 }
487 
489  StateStack.push_back(inFlowMapFirstKey);
490  this->newLineCheck();
491  ColumnAtMapFlowStart = Column;
492  output("{ ");
493 }
494 
496  StateStack.pop_back();
497  this->outputUpToEndOfLine(" }");
498 }
499 
501  this->outputUpToEndOfLine("---");
502 }
503 
504 bool Output::preflightDocument(unsigned index) {
505  if (index > 0)
506  this->outputUpToEndOfLine("\n---");
507  return true;
508 }
509 
511 }
512 
514  output("\n...\n");
515 }
516 
518  StateStack.push_back(inSeq);
519  NeedsNewLine = true;
520  return 0;
521 }
522 
524  StateStack.pop_back();
525 }
526 
527 bool Output::preflightElement(unsigned, void *&) {
528  return true;
529 }
530 
532 }
533 
535  StateStack.push_back(inFlowSeq);
536  this->newLineCheck();
537  ColumnAtFlowStart = Column;
538  output("[ ");
539  NeedFlowSequenceComma = false;
540  return 0;
541 }
542 
544  StateStack.pop_back();
545  this->outputUpToEndOfLine(" ]");
546 }
547 
548 bool Output::preflightFlowElement(unsigned, void *&) {
549  if (NeedFlowSequenceComma)
550  output(", ");
551  if (WrapColumn && Column > WrapColumn) {
552  output("\n");
553  for (int i = 0; i < ColumnAtFlowStart; ++i)
554  output(" ");
555  Column = ColumnAtFlowStart;
556  output(" ");
557  }
558  return true;
559 }
560 
562  NeedFlowSequenceComma = true;
563 }
564 
566  EnumerationMatchFound = false;
567 }
568 
569 bool Output::matchEnumScalar(const char *Str, bool Match) {
570  if (Match && !EnumerationMatchFound) {
571  this->newLineCheck();
572  this->outputUpToEndOfLine(Str);
573  EnumerationMatchFound = true;
574  }
575  return false;
576 }
577 
579  if (EnumerationMatchFound)
580  return false;
581  EnumerationMatchFound = true;
582  return true;
583 }
584 
586  if (!EnumerationMatchFound)
587  llvm_unreachable("bad runtime enum value");
588 }
589 
590 bool Output::beginBitSetScalar(bool &DoClear) {
591  this->newLineCheck();
592  output("[ ");
593  NeedBitValueComma = false;
594  DoClear = false;
595  return true;
596 }
597 
598 bool Output::bitSetMatch(const char *Str, bool Matches) {
599  if (Matches) {
600  if (NeedBitValueComma)
601  output(", ");
602  this->output(Str);
603  NeedBitValueComma = true;
604  }
605  return false;
606 }
607 
609  this->outputUpToEndOfLine(" ]");
610 }
611 
612 void Output::scalarString(StringRef &S, bool MustQuote) {
613  this->newLineCheck();
614  if (S.empty()) {
615  // Print '' for the empty string because leaving the field empty is not
616  // allowed.
617  this->outputUpToEndOfLine("''");
618  return;
619  }
620  if (!MustQuote) {
621  // Only quote if we must.
622  this->outputUpToEndOfLine(S);
623  return;
624  }
625  unsigned i = 0;
626  unsigned j = 0;
627  unsigned End = S.size();
628  output("'"); // Starting single quote.
629  const char *Base = S.data();
630  while (j < End) {
631  // Escape a single quote by doubling it.
632  if (S[j] == '\'') {
633  output(StringRef(&Base[i], j - i + 1));
634  output("'");
635  i = j + 1;
636  }
637  ++j;
638  }
639  output(StringRef(&Base[i], j - i));
640  this->outputUpToEndOfLine("'"); // Ending single quote.
641 }
642 
644  if (!StateStack.empty())
645  newLineCheck();
646  output(" |");
647  outputNewLine();
648 
649  unsigned Indent = StateStack.empty() ? 1 : StateStack.size();
650 
651  auto Buffer = MemoryBuffer::getMemBuffer(S, "", false);
652  for (line_iterator Lines(*Buffer, false); !Lines.is_at_end(); ++Lines) {
653  for (unsigned I = 0; I < Indent; ++I) {
654  output(" ");
655  }
656  output(*Lines);
657  outputNewLine();
658  }
659 }
660 
661 void Output::setError(const Twine &message) {
662 }
663 
665  // Normally, with an optional key/value where the value is an empty sequence,
666  // the whole key/value can be not written. But, that produces wrong yaml
667  // if the key/value is the only thing in the map and the map is used in
668  // a sequence. This detects if the this sequence is the first key/value
669  // in map that itself is embedded in a sequnce.
670  if (StateStack.size() < 2)
671  return true;
672  if (StateStack.back() != inMapFirstKey)
673  return true;
674  return (StateStack[StateStack.size()-2] != inSeq);
675 }
676 
677 void Output::output(StringRef s) {
678  Column += s.size();
679  Out << s;
680 }
681 
682 void Output::outputUpToEndOfLine(StringRef s) {
683  this->output(s);
684  if (StateStack.empty() || (StateStack.back() != inFlowSeq &&
685  StateStack.back() != inFlowMapFirstKey &&
686  StateStack.back() != inFlowMapOtherKey))
687  NeedsNewLine = true;
688 }
689 
690 void Output::outputNewLine() {
691  Out << "\n";
692  Column = 0;
693 }
694 
695 // if seq at top, indent as if map, then add "- "
696 // if seq in middle, use "- " if firstKey, else use " "
697 //
698 
699 void Output::newLineCheck() {
700  if (!NeedsNewLine)
701  return;
702  NeedsNewLine = false;
703 
704  this->outputNewLine();
705 
706  assert(StateStack.size() > 0);
707  unsigned Indent = StateStack.size() - 1;
708  bool OutputDash = false;
709 
710  if (StateStack.back() == inSeq) {
711  OutputDash = true;
712  } else if ((StateStack.size() > 1) && ((StateStack.back() == inMapFirstKey) ||
713  (StateStack.back() == inFlowSeq) ||
714  (StateStack.back() == inFlowMapFirstKey)) &&
715  (StateStack[StateStack.size() - 2] == inSeq)) {
716  --Indent;
717  OutputDash = true;
718  }
719 
720  for (unsigned i = 0; i < Indent; ++i) {
721  output(" ");
722  }
723  if (OutputDash) {
724  output("- ");
725  }
726 
727 }
728 
729 void Output::paddedKey(StringRef key) {
730  output(key);
731  output(":");
732  const char *spaces = " ";
733  if (key.size() < strlen(spaces))
734  output(&spaces[key.size()]);
735  else
736  output(" ");
737 }
738 
739 void Output::flowKey(StringRef Key) {
740  if (StateStack.back() == inFlowMapOtherKey)
741  output(", ");
742  if (WrapColumn && Column > WrapColumn) {
743  output("\n");
744  for (int I = 0; I < ColumnAtMapFlowStart; ++I)
745  output(" ");
746  Column = ColumnAtMapFlowStart;
747  output(" ");
748  }
749  output(Key);
750  output(": ");
751 }
752 
753 //===----------------------------------------------------------------------===//
754 // traits for built-in types
755 //===----------------------------------------------------------------------===//
756 
757 void ScalarTraits<bool>::output(const bool &Val, void *, raw_ostream &Out) {
758  Out << (Val ? "true" : "false");
759 }
760 
762  if (Scalar.equals("true")) {
763  Val = true;
764  return StringRef();
765  } else if (Scalar.equals("false")) {
766  Val = false;
767  return StringRef();
768  }
769  return "invalid boolean";
770 }
771 
772 void ScalarTraits<StringRef>::output(const StringRef &Val, void *,
773  raw_ostream &Out) {
774  Out << Val;
775 }
776 
778  StringRef &Val) {
779  Val = Scalar;
780  return StringRef();
781 }
782 
783 void ScalarTraits<std::string>::output(const std::string &Val, void *,
784  raw_ostream &Out) {
785  Out << Val;
786 }
787 
789  std::string &Val) {
790  Val = Scalar.str();
791  return StringRef();
792 }
793 
794 void ScalarTraits<uint8_t>::output(const uint8_t &Val, void *,
795  raw_ostream &Out) {
796  // use temp uin32_t because ostream thinks uint8_t is a character
797  uint32_t Num = Val;
798  Out << Num;
799 }
800 
801 StringRef ScalarTraits<uint8_t>::input(StringRef Scalar, void *, uint8_t &Val) {
802  unsigned long long n;
803  if (getAsUnsignedInteger(Scalar, 0, n))
804  return "invalid number";
805  if (n > 0xFF)
806  return "out of range number";
807  Val = n;
808  return StringRef();
809 }
810 
811 void ScalarTraits<uint16_t>::output(const uint16_t &Val, void *,
812  raw_ostream &Out) {
813  Out << Val;
814 }
815 
817  uint16_t &Val) {
818  unsigned long long n;
819  if (getAsUnsignedInteger(Scalar, 0, n))
820  return "invalid number";
821  if (n > 0xFFFF)
822  return "out of range number";
823  Val = n;
824  return StringRef();
825 }
826 
827 void ScalarTraits<uint32_t>::output(const uint32_t &Val, void *,
828  raw_ostream &Out) {
829  Out << Val;
830 }
831 
833  uint32_t &Val) {
834  unsigned long long n;
835  if (getAsUnsignedInteger(Scalar, 0, n))
836  return "invalid number";
837  if (n > 0xFFFFFFFFUL)
838  return "out of range number";
839  Val = n;
840  return StringRef();
841 }
842 
843 void ScalarTraits<uint64_t>::output(const uint64_t &Val, void *,
844  raw_ostream &Out) {
845  Out << Val;
846 }
847 
849  uint64_t &Val) {
850  unsigned long long N;
851  if (getAsUnsignedInteger(Scalar, 0, N))
852  return "invalid number";
853  Val = N;
854  return StringRef();
855 }
856 
857 void ScalarTraits<int8_t>::output(const int8_t &Val, void *, raw_ostream &Out) {
858  // use temp in32_t because ostream thinks int8_t is a character
859  int32_t Num = Val;
860  Out << Num;
861 }
862 
863 StringRef ScalarTraits<int8_t>::input(StringRef Scalar, void *, int8_t &Val) {
864  long long N;
865  if (getAsSignedInteger(Scalar, 0, N))
866  return "invalid number";
867  if ((N > 127) || (N < -128))
868  return "out of range number";
869  Val = N;
870  return StringRef();
871 }
872 
873 void ScalarTraits<int16_t>::output(const int16_t &Val, void *,
874  raw_ostream &Out) {
875  Out << Val;
876 }
877 
878 StringRef ScalarTraits<int16_t>::input(StringRef Scalar, void *, int16_t &Val) {
879  long long N;
880  if (getAsSignedInteger(Scalar, 0, N))
881  return "invalid number";
882  if ((N > INT16_MAX) || (N < INT16_MIN))
883  return "out of range number";
884  Val = N;
885  return StringRef();
886 }
887 
888 void ScalarTraits<int32_t>::output(const int32_t &Val, void *,
889  raw_ostream &Out) {
890  Out << Val;
891 }
892 
893 StringRef ScalarTraits<int32_t>::input(StringRef Scalar, void *, int32_t &Val) {
894  long long N;
895  if (getAsSignedInteger(Scalar, 0, N))
896  return "invalid number";
897  if ((N > INT32_MAX) || (N < INT32_MIN))
898  return "out of range number";
899  Val = N;
900  return StringRef();
901 }
902 
903 void ScalarTraits<int64_t>::output(const int64_t &Val, void *,
904  raw_ostream &Out) {
905  Out << Val;
906 }
907 
908 StringRef ScalarTraits<int64_t>::input(StringRef Scalar, void *, int64_t &Val) {
909  long long N;
910  if (getAsSignedInteger(Scalar, 0, N))
911  return "invalid number";
912  Val = N;
913  return StringRef();
914 }
915 
916 void ScalarTraits<double>::output(const double &Val, void *, raw_ostream &Out) {
917  Out << format("%g", Val);
918 }
919 
920 StringRef ScalarTraits<double>::input(StringRef Scalar, void *, double &Val) {
921  SmallString<32> buff(Scalar.begin(), Scalar.end());
922  char *end;
923  Val = strtod(buff.c_str(), &end);
924  if (*end != '\0')
925  return "invalid floating point number";
926  return StringRef();
927 }
928 
929 void ScalarTraits<float>::output(const float &Val, void *, raw_ostream &Out) {
930  Out << format("%g", Val);
931 }
932 
933 StringRef ScalarTraits<float>::input(StringRef Scalar, void *, float &Val) {
934  SmallString<32> buff(Scalar.begin(), Scalar.end());
935  char *end;
936  Val = strtod(buff.c_str(), &end);
937  if (*end != '\0')
938  return "invalid floating point number";
939  return StringRef();
940 }
941 
942 void ScalarTraits<Hex8>::output(const Hex8 &Val, void *, raw_ostream &Out) {
943  uint8_t Num = Val;
944  Out << format("0x%02X", Num);
945 }
946 
947 StringRef ScalarTraits<Hex8>::input(StringRef Scalar, void *, Hex8 &Val) {
948  unsigned long long n;
949  if (getAsUnsignedInteger(Scalar, 0, n))
950  return "invalid hex8 number";
951  if (n > 0xFF)
952  return "out of range hex8 number";
953  Val = n;
954  return StringRef();
955 }
956 
957 void ScalarTraits<Hex16>::output(const Hex16 &Val, void *, raw_ostream &Out) {
958  uint16_t Num = Val;
959  Out << format("0x%04X", Num);
960 }
961 
962 StringRef ScalarTraits<Hex16>::input(StringRef Scalar, void *, Hex16 &Val) {
963  unsigned long long n;
964  if (getAsUnsignedInteger(Scalar, 0, n))
965  return "invalid hex16 number";
966  if (n > 0xFFFF)
967  return "out of range hex16 number";
968  Val = n;
969  return StringRef();
970 }
971 
972 void ScalarTraits<Hex32>::output(const Hex32 &Val, void *, raw_ostream &Out) {
973  uint32_t Num = Val;
974  Out << format("0x%08X", Num);
975 }
976 
977 StringRef ScalarTraits<Hex32>::input(StringRef Scalar, void *, Hex32 &Val) {
978  unsigned long long n;
979  if (getAsUnsignedInteger(Scalar, 0, n))
980  return "invalid hex32 number";
981  if (n > 0xFFFFFFFFUL)
982  return "out of range hex32 number";
983  Val = n;
984  return StringRef();
985 }
986 
987 void ScalarTraits<Hex64>::output(const Hex64 &Val, void *, raw_ostream &Out) {
988  uint64_t Num = Val;
989  Out << format("0x%016llX", Num);
990 }
991 
992 StringRef ScalarTraits<Hex64>::input(StringRef Scalar, void *, Hex64 &Val) {
993  unsigned long long Num;
994  if (getAsUnsignedInteger(Scalar, 0, Num))
995  return "invalid hex64 number";
996  Val = Num;
997  return StringRef();
998 }
void setError(const Twine &message) override
Definition: YAMLTraits.cpp:661
void push_back(const T &Elt)
Definition: SmallVector.h:211
const_iterator end(StringRef path)
Get end iterator over path.
Definition: Path.cpp:241
std::error_code error()
Definition: YAMLTraits.cpp:59
bool preflightElement(unsigned, void *&) override
Definition: YAMLTraits.cpp:527
bool preflightDocument(unsigned)
Definition: YAMLTraits.cpp:504
~Output() override
Definition: YAMLTraits.cpp:413
LLVMContext & Context
LLVM_ATTRIBUTE_NORETURN void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
size_t i
void beginMapping() override
Definition: YAMLTraits.cpp:420
bool getAsUnsignedInteger(StringRef Str, unsigned Radix, unsigned long long &Result)
Helper functions for StringRef::getAsInteger.
Definition: StringRef.cpp:503
SourceMgr SrcMgr
static std::unique_ptr< MemoryBuffer > getMemBuffer(StringRef InputData, StringRef BufferName="", bool RequiresNullTerminator=true)
Open the specified memory range as a MemoryBuffer.
void endFlowMapping() override
Definition: YAMLTraits.cpp:495
StringRef getValue(SmallVectorImpl< char > &Storage) const
Gets the value of this node as a StringRef.
Represents a YAML sequence created from either a block sequence for a flow sequence.
Definition: YAMLParser.h:437
void * getContext()
Definition: YAMLTraits.cpp:35
void endSequence() override
Definition: YAMLTraits.cpp:523
A forward iterator which reads text lines from a buffer.
Definition: LineIterator.h:32
void beginFlowMapping() override
Definition: YAMLTraits.cpp:488
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:81
A Use represents the edge between a Value definition and its users.
Definition: Use.h:56
void postflightElement(void *) override
Definition: YAMLTraits.cpp:531
bool matchEnumScalar(const char *, bool) override
Definition: YAMLTraits.cpp:569
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE bool equals(StringRef RHS) const
equals - Check for string equality, this is more efficient than compare() when the relative ordering ...
Definition: StringRef.h:166
std::error_code make_error_code(BitcodeError E)
Output(llvm::raw_ostream &, void *Ctxt=nullptr, int WrapColumn=70)
Definition: YAMLTraits.cpp:400
void scalarString(StringRef &, bool) override
Definition: YAMLTraits.cpp:612
bool matchEnumFallback() override
Definition: YAMLTraits.cpp:578
bool beginBitSetScalar(bool &) override
Definition: YAMLTraits.cpp:590
LLVM_NODISCARD bool empty() const
Definition: SmallVector.h:60
A key and value pair.
Definition: YAMLParser.h:266
bool outputting() override
Definition: YAMLTraits.cpp:416
Function Alias Analysis false
std::vector< StringRef > keys() override
Definition: YAMLTraits.cpp:458
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE size_t size() const
size - Get the string size.
Definition: StringRef.h:135
bool mapTag(StringRef, bool) override
Definition: YAMLTraits.cpp:425
iterator begin() const
Definition: StringRef.h:103
format_object< Ts...> format(const char *Fmt, const Ts &...Vals)
These are helper functions used to produce formatted output.
Definition: Format.h:124
void endMapping() override
Definition: YAMLTraits.cpp:454
const Node * getCurrentNode() const
Returns the current node that's being parsed by the YAML Parser.
Definition: YAMLTraits.cpp:97
#define P(N)
void setDiagHandler(DiagHandlerTy DH, void *Ctx=nullptr)
Specify a diagnostic handler to be invoked every time PrintMessage is called.
Definition: SourceMgr.h:84
void postflightFlowElement(void *) override
Definition: YAMLTraits.cpp:561
void(* DiagHandlerTy)(const SMDiagnostic &, void *Context)
Clients that want to handle their own diagnostics in a custom way can register a function pointer+con...
Definition: SourceMgr.h:46
static const unsigned End
bool setCurrentDocument()
Definition: YAMLTraits.cpp:72
void endFlowSequence() override
Definition: YAMLTraits.cpp:543
bool preflightKey(const char *key, bool, bool, bool &, void *&) override
Definition: YAMLTraits.cpp:462
LLVM_NODISCARD std::string str() const
str - Get the contents as an std::string.
Definition: StringRef.h:225
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
A scalar node is an opaque datum that can be presented as a series of zero or more Unicode scalar val...
Definition: YAMLParser.h:193
bool preflightFlowElement(unsigned, void *&) override
Definition: YAMLTraits.cpp:548
virtual ~IO()
Definition: YAMLTraits.cpp:32
This class represents a YAML stream potentially containing multiple documents.
Definition: YAMLParser.h:76
This class should be specialized by type that requires custom conversion to/from a yaml scalar...
Definition: YAMLTraits.h:136
void endBitSetScalar() override
Definition: YAMLTraits.cpp:608
bool bitSetMatch(const char *, bool) override
Definition: YAMLTraits.cpp:598
StringRef str() const
Explicit conversion to StringRef.
Definition: SmallString.h:267
void setContext(void *)
Definition: YAMLTraits.cpp:39
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:130
LLVM_NODISCARD StringRef copy(Allocator &A) const
Definition: StringRef.h:153
unsigned beginFlowSequence() override
Definition: YAMLTraits.cpp:534
IO(void *Ctxt=nullptr)
Definition: YAMLTraits.cpp:29
#define I(x, y, z)
Definition: MD5.cpp:54
#define N
LLVM_ATTRIBUTE_ALWAYS_INLINE size_type size() const
Definition: SmallVector.h:135
LLVM_NODISCARD std::enable_if<!is_simple_type< Y >::value, typename cast_retty< X, const Y >::ret_type >::type dyn_cast(const Y &Val)
Definition: Casting.h:287
A block scalar node is an opaque datum that can be presented as a series of zero or more Unicode scal...
Definition: YAMLParser.h:236
Represents a YAML map created from either a block map for a flow map.
Definition: YAMLParser.h:390
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
bool isNull(StringRef S)
Definition: YAMLTraits.h:479
LLVM Value Representation.
Definition: Value.h:71
Input(StringRef InputContent, void *Ctxt=nullptr, SourceMgr::DiagHandlerTy DiagHandler=nullptr, void *DiagHandlerCtxt=nullptr)
Definition: YAMLTraits.cpp:47
void beginEnumScalar() override
Definition: YAMLTraits.cpp:565
iterator end() const
Definition: StringRef.h:105
unsigned beginSequence() override
Definition: YAMLTraits.cpp:517
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:44
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE const char * data() const
data - Get a pointer to the start of the string (which may not be null terminated).
Definition: StringRef.h:125
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:47
void endEnumScalar() override
Definition: YAMLTraits.cpp:585
bool getAsSignedInteger(StringRef Str, unsigned Radix, long long &Result)
Definition: StringRef.cpp:513
void postflightKey(void *) override
Definition: YAMLTraits.cpp:478
void blockScalarString(StringRef &) override
Definition: YAMLTraits.cpp:643
bool canElideEmptySequence() override
Definition: YAMLTraits.cpp:664
~Input() override
Definition: YAMLTraits.cpp:56
Abstract base class for all Nodes.
Definition: YAMLParser.h:105
bool is_contained(R &&Range, const E &Element)
Wrapper function around std::find to detect if an element exists in a container.
Definition: STLExtras.h:783