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1 : //===--- Diagnostic.cpp - C Language Family Diagnostic Handling -----------===//
2 : //
3 : // The LLVM Compiler Infrastructure
4 : //
5 : // This file is distributed under the University of Illinois Open Source
6 : // License. See LICENSE.TXT for details.
7 : //
8 : //===----------------------------------------------------------------------===//
9 : //
10 : // This file implements the Diagnostic-related interfaces.
11 : //
12 : //===----------------------------------------------------------------------===//
13 :
14 : #include "clang/Basic/Diagnostic.h"
15 :
16 : #include "clang/Lex/LexDiagnostic.h"
17 : #include "clang/Parse/ParseDiagnostic.h"
18 : #include "clang/AST/ASTDiagnostic.h"
19 : #include "clang/Sema/SemaDiagnostic.h"
20 : #include "clang/Frontend/FrontendDiagnostic.h"
21 : #include "clang/Analysis/AnalysisDiagnostic.h"
22 : #include "clang/Driver/DriverDiagnostic.h"
23 :
24 : #include "clang/Basic/FileManager.h"
25 : #include "clang/Basic/IdentifierTable.h"
26 : #include "clang/Basic/SourceLocation.h"
27 : #include "clang/Basic/SourceManager.h"
28 : #include "llvm/ADT/SmallVector.h"
29 : #include "llvm/ADT/StringExtras.h"
30 : #include "llvm/Support/raw_ostream.h"
31 : #include <vector>
32 : #include <map>
33 : #include <cstring>
34 : using namespace clang;
35 :
36 : //===----------------------------------------------------------------------===//
37 : // Builtin Diagnostic information
38 : //===----------------------------------------------------------------------===//
39 :
40 : // Diagnostic classes.
41 : enum {
42 : CLASS_NOTE = 0x01,
43 : CLASS_WARNING = 0x02,
44 : CLASS_EXTENSION = 0x03,
45 : CLASS_ERROR = 0x04
46 : };
47 :
48 : struct StaticDiagInfoRec {
49 : unsigned short DiagID;
50 : unsigned Mapping : 3;
51 : unsigned Class : 3;
52 : bool SFINAE : 1;
53 : const char *Description;
54 : const char *OptionGroup;
55 :
56 5244417: bool operator<(const StaticDiagInfoRec &RHS) const {
57 5244417: return DiagID < RHS.DiagID;
58 : }
59 : bool operator>(const StaticDiagInfoRec &RHS) const {
60 : return DiagID > RHS.DiagID;
61 : }
62 : };
63 :
64 : static const StaticDiagInfoRec StaticDiagInfo[] = {
65 : #define DIAG(ENUM,CLASS,DEFAULT_MAPPING,DESC,GROUP,SFINAE) \
66 : { diag::ENUM, DEFAULT_MAPPING, CLASS, SFINAE, DESC, GROUP },
67 : #include "clang/Basic/DiagnosticCommonKinds.inc"
68 : #include "clang/Basic/DiagnosticDriverKinds.inc"
69 : #include "clang/Basic/DiagnosticFrontendKinds.inc"
70 : #include "clang/Basic/DiagnosticLexKinds.inc"
71 : #include "clang/Basic/DiagnosticParseKinds.inc"
72 : #include "clang/Basic/DiagnosticASTKinds.inc"
73 : #include "clang/Basic/DiagnosticSemaKinds.inc"
74 : #include "clang/Basic/DiagnosticAnalysisKinds.inc"
75 : { 0, 0, 0, 0, 0, 0}
76 : };
77 : #undef DIAG
78 :
79 : /// GetDiagInfo - Return the StaticDiagInfoRec entry for the specified DiagID,
80 : /// or null if the ID is invalid.
81 96714: static const StaticDiagInfoRec *GetDiagInfo(unsigned DiagID) {
82 96714: unsigned NumDiagEntries = sizeof(StaticDiagInfo)/sizeof(StaticDiagInfo[0])-1;
83 :
84 : // If assertions are enabled, verify that the StaticDiagInfo array is sorted.
85 : #ifndef NDEBUG
86 : static bool IsFirst = true;
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87 96714: if (IsFirst) {
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88 8460440: for (unsigned i = 1; i != NumDiagEntries; ++i) {
89 : assert(StaticDiagInfo[i-1].DiagID != StaticDiagInfo[i].DiagID &&
90 : "Diag ID conflict, the enums at the start of clang::diag (in "
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91 4227650: "Diagnostic.h) probably need to be increased");
92 :
93 : assert(StaticDiagInfo[i-1] < StaticDiagInfo[i] &&
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94 4227650: "Improperly sorted diag info");
95 : }
96 2570: IsFirst = false;
97 : }
98 : #endif
99 :
100 : // Search the diagnostic table with a binary search.
101 96714: StaticDiagInfoRec Find = { DiagID, 0, 0, 0, 0, 0 };
102 :
103 : const StaticDiagInfoRec *Found =
104 96714: std::lower_bound(StaticDiagInfo, StaticDiagInfo + NumDiagEntries, Find);
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105 96714: if (Found == StaticDiagInfo + NumDiagEntries ||
106 : Found->DiagID != DiagID)
107 757: return 0;
108 :
109 95957: return Found;
110 : }
111 :
112 12965: static unsigned GetDefaultDiagMapping(unsigned DiagID) {
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113 12965: if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
114 12965: return Info->Mapping;
115 0: return diag::MAP_FATAL;
116 : }
117 :
118 : /// getWarningOptionForDiag - Return the lowest-level warning option that
119 : /// enables the specified diagnostic. If there is no -Wfoo flag that controls
120 : /// the diagnostic, this returns null.
121 18: const char *Diagnostic::getWarningOptionForDiag(unsigned DiagID) {
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122 18: if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
123 18: return Info->OptionGroup;
124 0: return 0;
125 : }
126 :
127 44: bool Diagnostic::isBuiltinSFINAEDiag(unsigned DiagID) {
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128 44: if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
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129 44: return Info->SFINAE && Info->Class == CLASS_ERROR;
130 0: return false;
131 : }
132 :
133 : /// getDiagClass - Return the class field of the diagnostic.
134 : ///
135 75669: static unsigned getBuiltinDiagClass(unsigned DiagID) {
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136 75669: if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
137 75669: return Info->Class;
138 0: return ~0U;
139 : }
140 :
141 : //===----------------------------------------------------------------------===//
142 : // Custom Diagnostic information
143 : //===----------------------------------------------------------------------===//
144 :
145 : namespace clang {
146 : namespace diag {
147 356: class CustomDiagInfo {
148 : typedef std::pair<Diagnostic::Level, std::string> DiagDesc;
149 : std::vector<DiagDesc> DiagInfo;
150 : std::map<DiagDesc, unsigned> DiagIDs;
151 : public:
152 :
153 : /// getDescription - Return the description of the specified custom
154 : /// diagnostic.
155 757: const char *getDescription(unsigned DiagID) const {
156 : assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
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157 757: "Invalid diagnosic ID");
158 757: return DiagInfo[DiagID-DIAG_UPPER_LIMIT].second.c_str();
159 : }
160 :
161 : /// getLevel - Return the level of the specified custom diagnostic.
162 757: Diagnostic::Level getLevel(unsigned DiagID) const {
163 : assert(this && DiagID-DIAG_UPPER_LIMIT < DiagInfo.size() &&
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164 757: "Invalid diagnosic ID");
165 757: return DiagInfo[DiagID-DIAG_UPPER_LIMIT].first;
166 : }
167 :
168 : unsigned getOrCreateDiagID(Diagnostic::Level L, llvm::StringRef Message,
169 858: Diagnostic &Diags) {
170 858: DiagDesc D(L, Message);
171 : // Check to see if it already exists.
172 858: std::map<DiagDesc, unsigned>::iterator I = DiagIDs.lower_bound(D);
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173 858: if (I != DiagIDs.end() && I->first == D)
174 164: return I->second;
175 :
176 : // If not, assign a new ID.
177 694: unsigned ID = DiagInfo.size()+DIAG_UPPER_LIMIT;
178 694: DiagIDs.insert(std::make_pair(D, ID));
179 694: DiagInfo.push_back(D);
180 694: return ID;
181 : }
182 : };
183 :
184 : } // end diag namespace
185 : } // end clang namespace
186 :
187 :
188 : //===----------------------------------------------------------------------===//
189 : // Common Diagnostic implementation
190 : //===----------------------------------------------------------------------===//
191 :
192 : static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT,
193 : const char *Modifier, unsigned ML,
194 : const char *Argument, unsigned ArgLen,
195 : const Diagnostic::ArgumentValue *PrevArgs,
196 : unsigned NumPrevArgs,
197 : llvm::SmallVectorImpl<char> &Output,
198 0: void *Cookie) {
199 0: const char *Str = "<can't format argument>";
200 0: Output.append(Str, Str+strlen(Str));
201 0: }
202 :
203 :
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204 5342: Diagnostic::Diagnostic(DiagnosticClient *client) : Client(client) {
205 5342: AllExtensionsSilenced = 0;
206 5342: IgnoreAllWarnings = false;
207 5342: WarningsAsErrors = false;
208 5342: ErrorsAsFatal = false;
209 5342: SuppressSystemWarnings = false;
210 5342: SuppressAllDiagnostics = false;
211 5342: ExtBehavior = Ext_Ignore;
212 :
213 5342: ErrorOccurred = false;
214 5342: FatalErrorOccurred = false;
215 5342: NumDiagnostics = 0;
216 :
217 5342: NumErrors = 0;
218 5342: CustomDiagInfo = 0;
219 5342: CurDiagID = ~0U;
220 5342: LastDiagLevel = Ignored;
221 :
222 5342: ArgToStringFn = DummyArgToStringFn;
223 5342: ArgToStringCookie = 0;
224 :
225 : // Set all mappings to 'unset'.
226 5342: DiagMappings BlankDiags(diag::DIAG_UPPER_LIMIT/2, 0);
227 5342: DiagMappingsStack.push_back(BlankDiags);
228 5342: }
229 :
230 5342: Diagnostic::~Diagnostic() {
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231 5342: delete CustomDiagInfo;
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232 5342: }
233 :
234 :
235 1: void Diagnostic::pushMappings() {
236 : // Avoids undefined behavior when the stack has to resize.
237 1: DiagMappingsStack.reserve(DiagMappingsStack.size() + 1);
238 1: DiagMappingsStack.push_back(DiagMappingsStack.back());
239 1: }
240 :
241 3: bool Diagnostic::popMappings() {
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242 3: if (DiagMappingsStack.size() == 1)
243 2: return false;
244 :
245 1: DiagMappingsStack.pop_back();
246 1: return true;
247 : }
248 :
249 : /// getCustomDiagID - Return an ID for a diagnostic with the specified message
250 : /// and level. If this is the first request for this diagnosic, it is
251 : /// registered and created, otherwise the existing ID is returned.
252 858: unsigned Diagnostic::getCustomDiagID(Level L, llvm::StringRef Message) {
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253 858: if (CustomDiagInfo == 0)
254 178: CustomDiagInfo = new diag::CustomDiagInfo();
255 858: return CustomDiagInfo->getOrCreateDiagID(L, Message, *this);
256 : }
257 :
258 :
259 : /// isBuiltinWarningOrExtension - Return true if the unmapped diagnostic
260 : /// level of the specified diagnostic ID is a Warning or Extension.
261 : /// This only works on builtin diagnostics, not custom ones, and is not legal to
262 : /// call on NOTEs.
263 698: bool Diagnostic::isBuiltinWarningOrExtension(unsigned DiagID) {
264 : return DiagID < diag::DIAG_UPPER_LIMIT &&
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265 698: getBuiltinDiagClass(DiagID) != CLASS_ERROR;
266 : }
267 :
268 : /// \brief Determine whether the given built-in diagnostic ID is a
269 : /// Note.
270 6225: bool Diagnostic::isBuiltinNote(unsigned DiagID) {
271 : return DiagID < diag::DIAG_UPPER_LIMIT &&
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272 6225: getBuiltinDiagClass(DiagID) == CLASS_NOTE;
273 : }
274 :
275 : /// isBuiltinExtensionDiag - Determine whether the given built-in diagnostic
276 : /// ID is for an extension of some sort.
277 : ///
278 25265: bool Diagnostic::isBuiltinExtensionDiag(unsigned DiagID) {
279 : return DiagID < diag::DIAG_UPPER_LIMIT &&
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280 25265: getBuiltinDiagClass(DiagID) == CLASS_EXTENSION;
281 : }
282 :
283 :
284 : /// getDescription - Given a diagnostic ID, return a description of the
285 : /// issue.
286 8018: const char *Diagnostic::getDescription(unsigned DiagID) const {
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287 8018: if (const StaticDiagInfoRec *Info = GetDiagInfo(DiagID))
288 7261: return Info->Description;
289 757: return CustomDiagInfo->getDescription(DiagID);
290 : }
291 :
292 : /// getDiagnosticLevel - Based on the way the client configured the Diagnostic
293 : /// object, classify the specified diagnostic ID into a Level, consumable by
294 : /// the DiagnosticClient.
295 25720: Diagnostic::Level Diagnostic::getDiagnosticLevel(unsigned DiagID) const {
296 : // Handle custom diagnostics, which cannot be mapped.
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297 25720: if (DiagID >= diag::DIAG_UPPER_LIMIT)
298 0: return CustomDiagInfo->getLevel(DiagID);
299 :
300 25720: unsigned DiagClass = getBuiltinDiagClass(DiagID);
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301 25720: assert(DiagClass != CLASS_NOTE && "Cannot get diagnostic level of a note!");
302 25720: return getDiagnosticLevel(DiagID, DiagClass);
303 : }
304 :
305 : /// getDiagnosticLevel - Based on the way the client configured the Diagnostic
306 : /// object, classify the specified diagnostic ID into a Level, consumable by
307 : /// the DiagnosticClient.
308 : Diagnostic::Level
309 41421: Diagnostic::getDiagnosticLevel(unsigned DiagID, unsigned DiagClass) const {
310 : // Specific non-error diagnostics may be mapped to various levels from ignored
311 : // to error. Errors can only be mapped to fatal.
312 41421: Diagnostic::Level Result = Diagnostic::Fatal;
313 :
314 : // Get the mapping information, if unset, compute it lazily.
315 41421: unsigned MappingInfo = getDiagnosticMappingInfo((diag::kind)DiagID);
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316 41421: if (MappingInfo == 0) {
317 12965: MappingInfo = GetDefaultDiagMapping(DiagID);
318 12965: setDiagnosticMappingInternal(DiagID, MappingInfo, false);
319 : }
320 :
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321 41421: switch (MappingInfo & 7) {
322 0: default: assert(0 && "Unknown mapping!");
323 : case diag::MAP_IGNORE:
324 : // Ignore this, unless this is an extension diagnostic and we're mapping
325 : // them onto warnings or errors.
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326 25237: if (!isBuiltinExtensionDiag(DiagID) || // Not an extension
327 : ExtBehavior == Ext_Ignore || // Extensions ignored anyway
328 : (MappingInfo & 8) != 0) // User explicitly mapped it.
329 25090: return Diagnostic::Ignored;
330 147: Result = Diagnostic::Warning;
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331 147: if (ExtBehavior == Ext_Error) Result = Diagnostic::Error;
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332 147: if (Result == Diagnostic::Error && ErrorsAsFatal)
333 0: Result = Diagnostic::Fatal;
334 147: break;
335 : case diag::MAP_ERROR:
336 3220: Result = Diagnostic::Error;
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337 3220: if (ErrorsAsFatal)
338 0: Result = Diagnostic::Fatal;
339 3220: break;
340 : case diag::MAP_FATAL:
341 6: Result = Diagnostic::Fatal;
342 6: break;
343 : case diag::MAP_WARNING:
344 : // If warnings are globally mapped to ignore or error, do it.
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345 12957: if (IgnoreAllWarnings)
346 125: return Diagnostic::Ignored;
347 :
348 12832: Result = Diagnostic::Warning;
349 :
350 : // If this is an extension diagnostic and we're in -pedantic-error mode, and
351 : // if the user didn't explicitly map it, upgrade to an error.
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352 12832: if (ExtBehavior == Ext_Error &&
353 : (MappingInfo & 8) == 0 &&
354 : isBuiltinExtensionDiag(DiagID))
355 4: Result = Diagnostic::Error;
356 :
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357 12832: if (WarningsAsErrors)
358 18: Result = Diagnostic::Error;
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359 12832: if (Result == Diagnostic::Error && ErrorsAsFatal)
360 0: Result = Diagnostic::Fatal;
361 12832: break;
362 :
363 : case diag::MAP_WARNING_NO_WERROR:
364 : // Diagnostics specified with -Wno-error=foo should be set to warnings, but
365 : // not be adjusted by -Werror or -pedantic-errors.
366 1: Result = Diagnostic::Warning;
367 :
368 : // If warnings are globally mapped to ignore or error, do it.
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369 1: if (IgnoreAllWarnings)
370 0: return Diagnostic::Ignored;
371 :
372 1: break;
373 :
374 : case diag::MAP_ERROR_NO_WFATAL:
375 : // Diagnostics specified as -Wno-fatal-error=foo should be errors, but
376 : // unaffected by -Wfatal-errors.
377 0: Result = Diagnostic::Error;
378 : break;
379 : }
380 :
381 : // Okay, we're about to return this as a "diagnostic to emit" one last check:
382 : // if this is any sort of extension warning, and if we're in an __extension__
383 : // block, silence it.
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384 16206: if (AllExtensionsSilenced && isBuiltinExtensionDiag(DiagID))
385 15: return Diagnostic::Ignored;
386 :
387 16191: return Result;
388 : }
389 :
390 : static bool ReadUnsigned(const char *&Memory, const char *MemoryEnd,
391 493: unsigned &Value) {
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392 493: if (Memory + sizeof(unsigned) > MemoryEnd)
393 0: return true;
394 :
395 493: memmove(&Value, Memory, sizeof(unsigned));
396 493: Memory += sizeof(unsigned);
397 493: return false;
398 : }
399 :
400 : static bool ReadSourceLocation(FileManager &FM, SourceManager &SM,
401 : const char *&Memory, const char *MemoryEnd,
402 85: SourceLocation &Location) {
403 : // Read the filename.
404 85: unsigned FileNameLen = 0;
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405 85: if (ReadUnsigned(Memory, MemoryEnd, FileNameLen) ||
406 : Memory + FileNameLen > MemoryEnd)
407 0: return true;
408 :
409 85: llvm::StringRef FileName(Memory, FileNameLen);
410 85: Memory += FileNameLen;
411 :
412 : // Read the line, column.
413 85: unsigned Line = 0, Column = 0;
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414 85: if (ReadUnsigned(Memory, MemoryEnd, Line) ||
415 : ReadUnsigned(Memory, MemoryEnd, Column))
416 0: return true;
417 :
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418 85: if (FileName.empty()) {
419 3: Location = SourceLocation();
420 3: return false;
421 : }
422 :
423 82: const FileEntry *File = FM.getFile(FileName);
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82: branch 1 taken
424 82: if (!File)
425 0: return true;
426 :
427 : // Make sure that this file has an entry in the source manager.
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428 82: if (!SM.hasFileInfo(File))
429 19: SM.createFileID(File, SourceLocation(), SrcMgr::C_User);
430 :
431 82: Location = SM.getLocation(File, Line, Column);
432 82: return false;
433 : }
434 :
435 : DiagnosticBuilder Diagnostic::Deserialize(FileManager &FM, SourceManager &SM,
436 : const char *&Memory,
437 73: const char *MemoryEnd) {
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438 73: if (Memory == MemoryEnd)
439 0: return DiagnosticBuilder(0);
440 :
441 : // Read the severity level.
442 73: unsigned Level = 0;
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443 73: if (ReadUnsigned(Memory, MemoryEnd, Level) || Level > Fatal)
444 19: return DiagnosticBuilder(0);
445 :
446 : // Read the source location.
447 54: SourceLocation Location;
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448 54: if (ReadSourceLocation(FM, SM, Memory, MemoryEnd, Location))
449 0: return DiagnosticBuilder(0);
450 :
451 : // Read the diagnostic text.
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452 54: if (Memory == MemoryEnd)
453 0: return DiagnosticBuilder(0);
454 :
455 54: unsigned MessageLen = 0;
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456 54: if (ReadUnsigned(Memory, MemoryEnd, MessageLen) ||
457 : Memory + MessageLen > MemoryEnd)
458 0: return DiagnosticBuilder(0);
459 :
460 54: llvm::StringRef Message(Memory, MessageLen);
461 54: Memory += MessageLen;
462 :
463 : // At this point, we have enough information to form a diagnostic. Do so.
464 54: unsigned DiagID = getCustomDiagID((enum Level)Level, Message);
465 54: DiagnosticBuilder DB = Report(FullSourceLoc(Location, SM), DiagID);
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466 54: if (Memory == MemoryEnd)
467 0: return DB;
468 :
469 : // Read the source ranges.
470 54: unsigned NumSourceRanges = 0;
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471 54: if (ReadUnsigned(Memory, MemoryEnd, NumSourceRanges))
472 0: return DB;
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473 65: for (unsigned I = 0; I != NumSourceRanges; ++I) {
474 11: SourceLocation Begin, End;
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475 11: if (ReadSourceLocation(FM, SM, Memory, MemoryEnd, Begin) ||
476 : ReadSourceLocation(FM, SM, Memory, MemoryEnd, End))
477 0: return DB;
478 :
479 11: DB << SourceRange(Begin, End);
480 : }
481 :
482 : // Read the fix-it hints.
483 54: unsigned NumFixIts = 0;
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484 54: if (ReadUnsigned(Memory, MemoryEnd, NumFixIts))
485 0: return DB;
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486 57: for (unsigned I = 0; I != NumFixIts; ++I) {
487 3: SourceLocation RemoveBegin, RemoveEnd, InsertionLoc;
488 3: unsigned InsertLen = 0;
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489 3: if (ReadSourceLocation(FM, SM, Memory, MemoryEnd, RemoveBegin) ||
490 : ReadSourceLocation(FM, SM, Memory, MemoryEnd, RemoveEnd) ||
491 : ReadSourceLocation(FM, SM, Memory, MemoryEnd, InsertionLoc) ||
492 : ReadUnsigned(Memory, MemoryEnd, InsertLen) ||
493 : Memory + InsertLen > MemoryEnd)
494 0: return DB;
495 :
496 3: CodeModificationHint Hint;
497 3: Hint.RemoveRange = SourceRange(RemoveBegin, RemoveEnd);
498 3: Hint.InsertionLoc = InsertionLoc;
499 3: Hint.CodeToInsert.assign(Memory, Memory + InsertLen);
500 3: Memory += InsertLen;
501 3: DB << Hint;
502 : }
503 :
504 54: return DB;
505 : }
506 :
507 : struct WarningOption {
508 : const char *Name;
509 : const short *Members;
510 : const char *SubGroups;
511 : };
512 :
513 : #define GET_DIAG_ARRAYS
514 : #include "clang/Basic/DiagnosticGroups.inc"
515 : #undef GET_DIAG_ARRAYS
516 :
517 : // Second the table of options, sorted by name for fast binary lookup.
518 : static const WarningOption OptionTable[] = {
519 : #define GET_DIAG_TABLE
520 : #include "clang/Basic/DiagnosticGroups.inc"
521 : #undef GET_DIAG_TABLE
522 : };
523 : static const size_t OptionTableSize =
524 : sizeof(OptionTable) / sizeof(OptionTable[0]);
525 :
526 : static bool WarningOptionCompare(const WarningOption &LHS,
527 836: const WarningOption &RHS) {
528 836: return strcmp(LHS.Name, RHS.Name) < 0;
529 : }
530 :
531 : static void MapGroupMembers(const WarningOption *Group, diag::Mapping Mapping,
532 360: Diagnostic &Diags) {
533 : // Option exists, poke all the members of its diagnostic set.
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534 360: if (const short *Member = Group->Members) {
698: branch 0 taken
314: branch 1 taken
535 1012: for (; *Member != -1; ++Member)
536 698: Diags.setDiagnosticMapping(*Member, Mapping);
537 : }
538 :
539 : // Enable/disable all subgroups along with this one.
70: branch 0 taken
290: branch 1 taken
540 360: if (const char *SubGroups = Group->SubGroups) {
241: branch 0 taken
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541 311: for (; *SubGroups != (char)-1; ++SubGroups)
542 241: MapGroupMembers(&OptionTable[(unsigned char)*SubGroups], Mapping, Diags);
543 : }
544 360: }
545 :
546 : /// setDiagnosticGroupMapping - Change an entire diagnostic group (e.g.
547 : /// "unknown-pragmas" to have the specified mapping. This returns true and
548 : /// ignores the request if "Group" was unknown, false otherwise.
549 : bool Diagnostic::setDiagnosticGroupMapping(const char *Group,
550 120: diag::Mapping Map) {
551 :
552 120: WarningOption Key = { Group, 0, 0 };
553 : const WarningOption *Found =
554 : std::lower_bound(OptionTable, OptionTable + OptionTableSize, Key,
555 120: WarningOptionCompare);
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119: branch 4 taken
556 120: if (Found == OptionTable + OptionTableSize ||
557 : strcmp(Found->Name, Group) != 0)
558 1: return true; // Option not found.
559 :
560 119: MapGroupMembers(Found, Map, *this);
561 119: return false;
562 : }
563 :
564 :
565 : /// ProcessDiag - This is the method used to report a diagnostic that is
566 : /// finally fully formed.
567 18884: bool Diagnostic::ProcessDiag() {
568 18884: DiagnosticInfo Info(this);
569 :
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18518: branch 1 taken
570 18884: if (SuppressAllDiagnostics)
571 366: return false;
572 :
573 : // Figure out the diagnostic level of this message.
574 : Diagnostic::Level DiagLevel;
575 18518: unsigned DiagID = Info.getID();
576 :
577 : // ShouldEmitInSystemHeader - True if this diagnostic should be produced even
578 : // in a system header.
579 : bool ShouldEmitInSystemHeader;
580 :
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17761: branch 1 taken
581 18518: if (DiagID >= diag::DIAG_UPPER_LIMIT) {
582 : // Handle custom diagnostics, which cannot be mapped.
583 757: DiagLevel = CustomDiagInfo->getLevel(DiagID);
584 :
585 : // Custom diagnostics always are emitted in system headers.
586 757: ShouldEmitInSystemHeader = true;
587 : } else {
588 : // Get the class of the diagnostic. If this is a NOTE, map it onto whatever
589 : // the diagnostic level was for the previous diagnostic so that it is
590 : // filtered the same as the previous diagnostic.
591 17761: unsigned DiagClass = getBuiltinDiagClass(DiagID);
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592 17761: if (DiagClass == CLASS_NOTE) {
593 2060: DiagLevel = Diagnostic::Note;
594 2060: ShouldEmitInSystemHeader = false; // extra consideration is needed
595 : } else {
596 : // If this is not an error and we are in a system header, we ignore it.
597 : // Check the original Diag ID here, because we also want to ignore
598 : // extensions and warnings in -Werror and -pedantic-errors modes, which
599 : // *map* warnings/extensions to errors.
600 15701: ShouldEmitInSystemHeader = DiagClass == CLASS_ERROR;
601 :
602 15701: DiagLevel = getDiagnosticLevel(DiagID, DiagClass);
603 : }
604 : }
605 :
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2063: branch 1 taken
606 18518: if (DiagLevel != Diagnostic::Note) {
607 : // Record that a fatal error occurred only when we see a second
608 : // non-note diagnostic. This allows notes to be attached to the
609 : // fatal error, but suppresses any diagnostics that follow those
610 : // notes.
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611 16455: if (LastDiagLevel == Diagnostic::Fatal)
612 2: FatalErrorOccurred = true;
613 :
614 16455: LastDiagLevel = DiagLevel;
615 : }
616 :
617 : // If a fatal error has already been emitted, silence all subsequent
618 : // diagnostics.
4: branch 0 taken
18514: branch 1 taken
619 18518: if (FatalErrorOccurred)
620 4: return false;
621 :
622 : // If the client doesn't care about this message, don't issue it. If this is
623 : // a note and the last real diagnostic was ignored, ignore it too.
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624 18514: if (DiagLevel == Diagnostic::Ignored ||
625 : (DiagLevel == Diagnostic::Note && LastDiagLevel == Diagnostic::Ignored))
626 10492: return false;
627 :
628 : // If this diagnostic is in a system header and is not a clang error, suppress
629 : // it.
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630 8022: if (SuppressSystemWarnings && !ShouldEmitInSystemHeader &&
631 : Info.getLocation().isValid() &&
632 : Info.getLocation().getSpellingLoc().isInSystemHeader() &&
633 : (DiagLevel != Diagnostic::Note || LastDiagLevel == Diagnostic::Ignored)) {
634 3: LastDiagLevel = Diagnostic::Ignored;
635 3: return false;
636 : }
637 :
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4771: branch 1 taken
638 8019: if (DiagLevel >= Diagnostic::Error) {
639 3248: ErrorOccurred = true;
640 3248: ++NumErrors;
641 : }
642 :
643 : // Finally, report it.
644 8019: Client->HandleDiagnostic(DiagLevel, Info);
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0: branch 2 not taken
645 8019: if (Client->IncludeInDiagnosticCounts()) ++NumDiagnostics;
646 :
647 8019: CurDiagID = ~0U;
648 :
649 8019: return true;
650 : }
651 :
652 :
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653 11914: DiagnosticClient::~DiagnosticClient() {}
654 :
655 :
656 : /// ModifierIs - Return true if the specified modifier matches specified string.
657 : template <std::size_t StrLen>
658 : static bool ModifierIs(const char *Modifier, unsigned ModifierLen,
659 3228: const char (&Str)[StrLen]) {
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635: branch 10 taken
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71: branch 13 taken
660 3228: return StrLen-1 == ModifierLen && !memcmp(Modifier, Str, StrLen-1);
661 : }
662 :
663 : /// ScanForward - Scans forward, looking for the given character, skipping
664 : /// nested clauses and escaped characters.
665 5741: static const char *ScanFormat(const char *I, const char *E, char Target) {
666 5741: unsigned Depth = 0;
667 :
164031: branch 0 taken
428: branch 1 taken
668 164459: for ( ; I != E; ++I) {
164031: branch 0 taken
0: branch 1 not taken
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158718: branch 3 taken
669 164031: if (Depth == 0 && *I == Target) return I;
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158718: branch 3 taken
670 158718: if (Depth != 0 && *I == '}') Depth--;
671 :
172: branch 0 taken
158546: branch 1 taken
672 158718: if (*I == '%') {
673 172: I++;
172: branch 0 taken
0: branch 1 not taken
674 172: if (I == E) break;
675 :
676 : // Escaped characters get implicitly skipped here.
677 :
678 : // Format specifier.
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0: branch 4 not taken
679 172: if (!isdigit(*I) && !ispunct(*I)) {
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680 170: for (I++; I != E && !isdigit(*I) && *I != '{'; I++) ;
170: branch 0 taken
0: branch 1 not taken
681 170: if (I == E) break;
0: branch 0 not taken
170: branch 1 taken
682 170: if (*I == '{')
683 0: Depth++;
684 : }
685 : }
686 : }
687 428: return E;
688 : }
689 :
690 : /// HandleSelectModifier - Handle the integer 'select' modifier. This is used
691 : /// like this: %select{foo|bar|baz}2. This means that the integer argument
692 : /// "%2" has a value from 0-2. If the value is 0, the diagnostic prints 'foo'.
693 : /// If the value is 1, it prints 'bar'. If it has the value 2, it prints 'baz'.
694 : /// This is very useful for certain classes of variant diagnostics.
695 : static void HandleSelectModifier(const DiagnosticInfo &DInfo, unsigned ValNo,
696 : const char *Argument, unsigned ArgumentLen,
697 1745: llvm::SmallVectorImpl<char> &OutStr) {
698 1745: const char *ArgumentEnd = Argument+ArgumentLen;
699 :
700 : // Skip over 'ValNo' |'s.
2049: branch 0 taken
1745: branch 1 taken
701 5539: while (ValNo) {
702 2049: const char *NextVal = ScanFormat(Argument, ArgumentEnd, '|');
703 : assert(NextVal != ArgumentEnd && "Value for integer select modifier was"
0: branch 0 not taken
2049: branch 1 taken
704 2049: " larger than the number of options in the diagnostic string!");
705 2049: Argument = NextVal+1; // Skip this string.
706 2049: --ValNo;
707 : }
708 :
709 : // Get the end of the value. This is either the } or the |.
710 1745: const char *EndPtr = ScanFormat(Argument, ArgumentEnd, '|');
711 :
712 : // Recursively format the result of the select clause into the output string.
713 1745: DInfo.FormatDiagnostic(Argument, EndPtr, OutStr);
714 1745: }
715 :
716 : /// HandleIntegerSModifier - Handle the integer 's' modifier. This adds the
717 : /// letter 's' to the string if the value is not 1. This is used in cases like
718 : /// this: "you idiot, you have %4 parameter%s4!".
719 : static void HandleIntegerSModifier(unsigned ValNo,
720 71: llvm::SmallVectorImpl<char> &OutStr) {
25: branch 0 taken
46: branch 1 taken
721 71: if (ValNo != 1)
722 25: OutStr.push_back('s');
723 71: }
724 :
725 : /// HandleOrdinalModifier - Handle the integer 'ord' modifier. This
726 : /// prints the ordinal form of the given integer, with 1 corresponding
727 : /// to the first ordinal. Currently this is hard-coded to use the
728 : /// English form.
729 : static void HandleOrdinalModifier(unsigned ValNo,
730 89: llvm::SmallVectorImpl<char> &OutStr) {
0: branch 0 not taken
89: branch 1 taken
731 89: assert(ValNo != 0 && "ValNo must be strictly positive!");
732 :
733 89: llvm::raw_svector_ostream Out(OutStr);
734 :
735 : // We could use text forms for the first N ordinals, but the numeric
736 : // forms are actually nicer in diagnostics because they stand out.
737 89: Out << ValNo;
738 :
739 : // It is critically important that we do this perfectly for
740 : // user-written sequences with over 100 elements.
0: branch 0 not taken
89: branch 1 taken
741 89: switch (ValNo % 100) {
742 : case 11:
743 : case 12:
744 : case 13:
745 0: Out << "th"; return;
746 : default:
75: branch 0 taken
14: branch 1 taken
0: branch 2 not taken
0: branch 3 not taken
747 89: switch (ValNo % 10) {
748 75: case 1: Out << "st"; return;
749 14: case 2: Out << "nd"; return;
750 0: case 3: Out << "rd"; return;
751 0: default: Out << "th"; return;
752 : }
753 89: }
754 : }
755 :
756 :
757 : /// PluralNumber - Parse an unsigned integer and advance Start.
758 71: static unsigned PluralNumber(const char *&Start, const char *End) {
759 : // Programming 101: Parse a decimal number :-)
760 71: unsigned Val = 0;
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71: branch 1 taken
71: branch 2 taken
0: branch 3 not taken
71: branch 4 taken
0: branch 5 not taken
761 213: while (Start != End && *Start >= '0' && *Start <= '9') {
762 71: Val *= 10;
763 71: Val += *Start - '0';
764 71: ++Start;
765 : }
766 71: return Val;
767 : }
768 :
769 : /// TestPluralRange - Test if Val is in the parsed range. Modifies Start.
770 71: static bool TestPluralRange(unsigned Val, const char *&Start, const char *End) {
71: branch 0 taken
0: branch 1 not taken
771 71: if (*Start != '[') {
772 71: unsigned Ref = PluralNumber(Start, End);
773 71: return Ref == Val;
774 : }
775 :
776 0: ++Start;
777 0: unsigned Low = PluralNumber(Start, End);
0: branch 0 not taken
0: branch 1 not taken
778 0: assert(*Start == ',' && "Bad plural expression syntax: expected ,");
779 0: ++Start;
780 0: unsigned High = PluralNumber(Start, End);
0: branch 0 not taken
0: branch 1 not taken
781 0: assert(*Start == ']' && "Bad plural expression syntax: expected )");
782 0: ++Start;
0: branch 0 not taken
0: branch 1 not taken
0: branch 2 not taken
0: branch 3 not taken
783 0: return Low <= Val && Val <= High;
784 : }
785 :
786 : /// EvalPluralExpr - Actual expression evaluator for HandlePluralModifier.
787 131: static bool EvalPluralExpr(unsigned ValNo, const char *Start, const char *End) {
788 : // Empty condition?
60: branch 0 taken
71: branch 1 taken
789 131: if (*Start == ':')
790 60: return true;
791 :
792 0: while (1) {
793 71: char C = *Start;
0: branch 0 not taken
71: branch 1 taken
794 71: if (C == '%') {
795 : // Modulo expression
796 0: ++Start;
797 0: unsigned Arg = PluralNumber(Start, End);
0: branch 0 not taken
0: branch 1 not taken
798 0: assert(*Start == '=' && "Bad plural expression syntax: expected =");
799 0: ++Start;
800 0: unsigned ValMod = ValNo % Arg;
0: branch 1 not taken
0: branch 2 not taken
801 0: if (TestPluralRange(ValMod, Start, End))
802 0: return true;
803 : } else {
804 : assert((C == '[' || (C >= '0' && C <= '9')) &&
71: branch 0 taken
0: branch 1 not taken
71: branch 2 taken
0: branch 3 not taken
0: branch 4 not taken
71: branch 5 taken
805 71: "Bad plural expression syntax: unexpected character");
806 : // Range expression
11: branch 1 taken
60: branch 2 taken
807 71: if (TestPluralRange(ValNo, Start, End))
808 11: return true;
809 : }
810 :
811 : // Scan for next or-expr part.
812 60: Start = std::find(Start, End, ',');
0: branch 0 not taken
60: branch 1 taken
813 60: if (Start == End)
814 60: break;
815 0: ++Start;
816 : }
817 60: return false;
818 : }
819 :
820 : /// HandlePluralModifier - Handle the integer 'plural' modifier. This is used
821 : /// for complex plural forms, or in languages where all plurals are complex.
822 : /// The syntax is: %plural{cond1:form1|cond2:form2|:form3}, where condn are
823 : /// conditions that are tested in order, the form corresponding to the first
824 : /// that applies being emitted. The empty condition is always true, making the
825 : /// last form a default case.
826 : /// Conditions are simple boolean expressions, where n is the number argument.
827 : /// Here are the rules.
828 : /// condition := expression | empty
829 : /// empty := -> always true
830 : /// expression := numeric [',' expression] -> logical or
831 : /// numeric := range -> true if n in range
832 : /// | '%' number '=' range -> true if n % number in range
833 : /// range := number
834 : /// | '[' number ',' number ']' -> ranges are inclusive both ends
835 : ///
836 : /// Here are some examples from the GNU gettext manual written in this form:
837 : /// English:
838 : /// {1:form0|:form1}
839 : /// Latvian:
840 : /// {0:form2|%100=11,%10=0,%10=[2,9]:form1|:form0}
841 : /// Gaeilge:
842 : /// {1:form0|2:form1|:form2}
843 : /// Romanian:
844 : /// {1:form0|0,%100=[1,19]:form1|:form2}
845 : /// Lithuanian:
846 : /// {%10=0,%100=[10,19]:form2|%10=1:form0|:form1}
847 : /// Russian (requires repeated form):
848 : /// {%100=[11,14]:form2|%10=1:form0|%10=[2,4]:form1|:form2}
849 : /// Slovak
850 : /// {1:form0|[2,4]:form1|:form2}
851 : /// Polish (requires repeated form):
852 : /// {1:form0|%100=[10,20]:form2|%10=[2,4]:form1|:form2}
853 : static void HandlePluralModifier(unsigned ValNo,
854 : const char *Argument, unsigned ArgumentLen,
855 71: llvm::SmallVectorImpl<char> &OutStr) {
856 71: const char *ArgumentEnd = Argument + ArgumentLen;
857 60: while (1) {
0: branch 0 not taken
131: branch 1 taken
858 131: assert(Argument < ArgumentEnd && "Plural expression didn't match.");
859 131: const char *ExprEnd = Argument;
71: branch 0 taken
131: branch 1 taken
860 333: while (*ExprEnd != ':') {
0: branch 0 not taken
71: branch 1 taken
861 71: assert(ExprEnd != ArgumentEnd && "Plural missing expression end");
862 71: ++ExprEnd;
863 : }
71: branch 1 taken
60: branch 2 taken
864 131: if (EvalPluralExpr(ValNo, Argument, ExprEnd)) {
865 71: Argument = ExprEnd + 1;
866 71: ExprEnd = ScanFormat(Argument, ArgumentEnd, '|');
867 71: OutStr.append(Argument, ExprEnd);
868 : return;
869 : }
870 60: Argument = ScanFormat(Argument, ArgumentEnd - 1, '|') + 1;
871 : }
872 : }
873 :
874 :
875 : /// FormatDiagnostic - Format this diagnostic into a string, substituting the
876 : /// formal arguments into the %0 slots. The result is appended onto the Str
877 : /// array.
878 : void DiagnosticInfo::
879 8018: FormatDiagnostic(llvm::SmallVectorImpl<char> &OutStr) const {
880 8018: const char *DiagStr = getDiags()->getDescription(getID());
881 8018: const char *DiagEnd = DiagStr+strlen(DiagStr);
882 :
883 8018: FormatDiagnostic(DiagStr, DiagEnd, OutStr);
884 8018: }
885 :
886 : void DiagnosticInfo::
887 : FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
888 9763: llvm::SmallVectorImpl<char> &OutStr) const {
889 :
890 : /// FormattedArgs - Keep track of all of the arguments formatted by
891 : /// ConvertArgToString and pass them into subsequent calls to
892 : /// ConvertArgToString, allowing the implementation to avoid redundancies in
893 : /// obvious cases.
894 9763: llvm::SmallVector<Diagnostic::ArgumentValue, 8> FormattedArgs;
895 :
23030: branch 0 taken
9763: branch 1 taken
896 42556: while (DiagStr != DiagEnd) {
14771: branch 0 taken
8259: branch 1 taken
897 23030: if (DiagStr[0] != '%') {
898 : // Append non-%0 substrings to Str if we have one.
899 14771: const char *StrEnd = std::find(DiagStr, DiagEnd, '%');
900 14771: OutStr.append(DiagStr, StrEnd);
901 14771: DiagStr = StrEnd;
902 14771: continue;
17: branch 1 taken
8242: branch 2 taken
903 8259: } else if (ispunct(DiagStr[1])) {
904 17: OutStr.push_back(DiagStr[1]); // %% -> %.
905 17: DiagStr += 2;
906 17: continue;
907 : }
908 :
909 : // Skip the %.
910 8242: ++DiagStr;
911 :
912 : // This must be a placeholder for a diagnostic argument. The format for a
913 : // placeholder is one of "%0", "%modifier0", or "%modifier{arguments}0".
914 : // The digit is a number from 0-9 indicating which argument this comes from.
915 : // The modifier is a string of digits from the set [-a-z]+, arguments is a
916 : // brace enclosed string.
917 8242: const char *Modifier = 0, *Argument = 0;
918 8242: unsigned ModifierLen = 0, ArgumentLen = 0;
919 :
920 : // Check to see if we have a modifier. If so eat it.
2235: branch 0 taken
6007: branch 1 taken
921 8242: if (!isdigit(DiagStr[0])) {
922 2235: Modifier = DiagStr;
0: branch 0 not taken
14980: branch 1 taken
14561: branch 2 taken
419: branch 3 taken
12745: branch 4 taken
1816: branch 5 taken
923 17215: while (DiagStr[0] == '-' ||
924 : (DiagStr[0] >= 'a' && DiagStr[0] <= 'z'))
925 12745: ++DiagStr;
926 2235: ModifierLen = DiagStr-Modifier;
927 :
928 : // If we have an argument, get it next.
1816: branch 0 taken
419: branch 1 taken
929 2235: if (DiagStr[0] == '{') {
930 1816: ++DiagStr; // Skip {.
931 1816: Argument = DiagStr;
932 :
933 1816: DiagStr = ScanFormat(DiagStr, DiagEnd, '}');
0: branch 0 not taken
1816: branch 1 taken
934 1816: assert(DiagStr != DiagEnd && "Mismatched {}'s in diagnostic string!");
935 1816: ArgumentLen = DiagStr-Argument;
936 1816: ++DiagStr; // Skip }.
937 : }
938 : }
939 :
0: branch 0 not taken
8242: branch 1 taken
940 8242: assert(isdigit(*DiagStr) && "Invalid format for argument in diagnostic");
941 8242: unsigned ArgNo = *DiagStr++ - '0';
942 :
943 8242: Diagnostic::ArgumentKind Kind = getArgKind(ArgNo);
944 :
668: branch 0 taken
445: branch 1 taken
1176: branch 2 taken
993: branch 3 taken
383: branch 4 taken
4577: branch 5 taken
0: branch 6 not taken
945 8242: switch (Kind) {
946 : // ---- STRINGS ----
947 : case Diagnostic::ak_std_string: {
948 668: const std::string &S = getArgStdStr(ArgNo);
0: branch 0 not taken
668: branch 1 taken
949 668: assert(ModifierLen == 0 && "No modifiers for strings yet");
950 668: OutStr.append(S.begin(), S.end());
951 668: break;
952 : }
953 : case Diagnostic::ak_c_string: {
954 445: const char *S = getArgCStr(ArgNo);
0: branch 0 not taken
445: branch 1 taken
955 445: assert(ModifierLen == 0 && "No modifiers for strings yet");
956 :
957 : // Don't crash if get passed a null pointer by accident.
0: branch 0 not taken
445: branch 1 taken
958 445: if (!S)
959 0: S = "(null)";
960 :
961 445: OutStr.append(S, S + strlen(S));
962 445: break;
963 : }
964 : // ---- INTEGERS ----
965 : case Diagnostic::ak_sint: {
966 1176: int Val = getArgSInt(ArgNo);
967 :
1149: branch 1 taken
27: branch 2 taken
968 1176: if (ModifierIs(Modifier, ModifierLen, "select")) {
969 1149: HandleSelectModifier(*this, (unsigned)Val, Argument, ArgumentLen, OutStr);
0: branch 1 not taken
27: branch 2 taken
970 27: } else if (ModifierIs(Modifier, ModifierLen, "s")) {
971 0: HandleIntegerSModifier(Val, OutStr);
0: branch 1 not taken
27: branch 2 taken
972 27: } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
973 0: HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
0: branch 1 not taken
27: branch 2 taken
974 27: } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
975 0: HandleOrdinalModifier((unsigned)Val, OutStr);
976 : } else {
0: branch 0 not taken
27: branch 1 taken
977 27: assert(ModifierLen == 0 && "Unknown integer modifier");
978 27: llvm::raw_svector_ostream(OutStr) << Val;
979 : }
980 1176: break;
981 : }
982 : case Diagnostic::ak_uint: {
983 993: unsigned Val = getArgUInt(ArgNo);
984 :
596: branch 1 taken
397: branch 2 taken
985 993: if (ModifierIs(Modifier, ModifierLen, "select")) {
986 596: HandleSelectModifier(*this, Val, Argument, ArgumentLen, OutStr);
71: branch 1 taken
326: branch 2 taken
987 397: } else if (ModifierIs(Modifier, ModifierLen, "s")) {
988 71: HandleIntegerSModifier(Val, OutStr);
71: branch 1 taken
255: branch 2 taken
989 326: } else if (ModifierIs(Modifier, ModifierLen, "plural")) {
990 71: HandlePluralModifier((unsigned)Val, Argument, ArgumentLen, OutStr);
89: branch 1 taken
166: branch 2 taken
991 255: } else if (ModifierIs(Modifier, ModifierLen, "ordinal")) {
992 89: HandleOrdinalModifier(Val, OutStr);
993 : } else {
0: branch 0 not taken
166: branch 1 taken
994 166: assert(ModifierLen == 0 && "Unknown integer modifier");
995 166: llvm::raw_svector_ostream(OutStr) << Val;
996 : }
997 993: break;
998 : }
999 : // ---- NAMES and TYPES ----
1000 : case Diagnostic::ak_identifierinfo: {
1001 383: const IdentifierInfo *II = getArgIdentifier(ArgNo);
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383: branch 1 taken
1002 383: assert(ModifierLen == 0 && "No modifiers for strings yet");
1003 :
1004 : // Don't crash if get passed a null pointer by accident.
1: branch 0 taken
382: branch 1 taken
1005 383: if (!II) {
1006 1: const char *S = "(null)";
1007 1: OutStr.append(S, S + strlen(S));
1008 1: continue;
1009 : }
1010 :
1011 382: llvm::raw_svector_ostream(OutStr) << '\'' << II->getName() << '\'';
1012 382: break;
1013 : }
1014 : case Diagnostic::ak_qualtype:
1015 : case Diagnostic::ak_declarationname:
1016 : case Diagnostic::ak_nameddecl:
1017 : case Diagnostic::ak_nestednamespec:
1018 : case Diagnostic::ak_declcontext:
1019 : getDiags()->ConvertArgToString(Kind, getRawArg(ArgNo),
1020 : Modifier, ModifierLen,
1021 : Argument, ArgumentLen,
1022 : FormattedArgs.data(), FormattedArgs.size(),
1023 4577: OutStr);
1024 : break;
1025 : }
1026 :
1027 : // Remember this argument info for subsequent formatting operations. Turn
1028 : // std::strings into a null terminated string to make it be the same case as
1029 : // all the other ones.
7573: branch 0 taken
668: branch 1 taken
1030 8241: if (Kind != Diagnostic::ak_std_string)
1031 7573: FormattedArgs.push_back(std::make_pair(Kind, getRawArg(ArgNo)));
1032 : else
1033 : FormattedArgs.push_back(std::make_pair(Diagnostic::ak_c_string,
1034 668: (intptr_t)getArgStdStr(ArgNo).c_str()));
1035 :
1036 9763: }
1037 9763: }
1038 :
1039 474: static void WriteUnsigned(llvm::raw_ostream &OS, unsigned Value) {
1040 474: OS.write((const char *)&Value, sizeof(unsigned));
1041 474: }
1042 :
1043 139: static void WriteString(llvm::raw_ostream &OS, llvm::StringRef String) {
1044 139: WriteUnsigned(OS, String.size());
1045 139: OS.write(String.data(), String.size());
1046 139: }
1047 :
1048 : static void WriteSourceLocation(llvm::raw_ostream &OS,
1049 : SourceManager *SM,
1050 85: SourceLocation Location) {
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82: branch 4 taken
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82: branch 6 taken
1051 85: if (!SM || Location.isInvalid()) {
1052 : // If we don't have a source manager or this location is invalid,
1053 : // just write an invalid location.
1054 3: WriteUnsigned(OS, 0);
1055 3: WriteUnsigned(OS, 0);
1056 3: WriteUnsigned(OS, 0);
1057 3: return;
1058 : }
1059 :
1060 82: Location = SM->getInstantiationLoc(Location);
1061 82: std::pair<FileID, unsigned> Decomposed = SM->getDecomposedLoc(Location);
1062 :
1063 82: WriteString(OS, SM->getFileEntryForID(Decomposed.first)->getName());
1064 82: WriteUnsigned(OS, SM->getLineNumber(Decomposed.first, Decomposed.second));
1065 82: WriteUnsigned(OS, SM->getColumnNumber(Decomposed.first, Decomposed.second));
1066 : }
1067 :
1068 : void DiagnosticInfo::Serialize(Diagnostic::Level DiagLevel,
1069 54: llvm::raw_ostream &OS) const {
1070 54: SourceManager *SM = 0;
54: branch 2 taken
0: branch 3 not taken
1071 54: if (getLocation().isValid())
1072 54: SM = &const_cast<SourceManager &>(getLocation().getManager());
1073 :
1074 : // Write the diagnostic level and location.
1075 54: WriteUnsigned(OS, (unsigned)DiagLevel);
1076 54: WriteSourceLocation(OS, SM, getLocation());
1077 :
1078 : // Write the diagnostic message.
1079 54: llvm::SmallString<64> Message;
1080 54: FormatDiagnostic(Message);
1081 54: WriteString(OS, Message);
1082 :
1083 : // Count the number of ranges that don't point into macros, since
1084 : // only simple file ranges serialize well.
1085 54: unsigned NumNonMacroRanges = 0;
11: branch 1 taken
54: branch 2 taken
1086 65: for (unsigned I = 0, N = getNumRanges(); I != N; ++I) {
1087 11: SourceRange R = getRange(I);
11: branch 2 taken
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11: branch 7 taken
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11: branch 9 taken
1088 11: if (R.getBegin().isMacroID() || R.getEnd().isMacroID())
1089 0: continue;
1090 :
1091 11: ++NumNonMacroRanges;
1092 : }
1093 :
1094 : // Write the ranges.
1095 54: WriteUnsigned(OS, NumNonMacroRanges);
10: branch 0 taken
44: branch 1 taken
1096 54: if (NumNonMacroRanges) {
11: branch 1 taken
10: branch 2 taken
1097 21: for (unsigned I = 0, N = getNumRanges(); I != N; ++I) {
1098 11: SourceRange R = getRange(I);
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11: branch 7 taken
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11: branch 9 taken
1099 11: if (R.getBegin().isMacroID() || R.getEnd().isMacroID())
1100 0: continue;
1101 :
1102 11: WriteSourceLocation(OS, SM, R.getBegin());
1103 11: WriteSourceLocation(OS, SM, R.getEnd());
1104 : }
1105 : }
1106 :
1107 : // Determine if all of the fix-its involve rewrites with simple file
1108 : // locations (not in macro instantiations). If so, we can write
1109 : // fix-it information.
1110 54: unsigned NumFixIts = getNumCodeModificationHints();
3: branch 0 taken
54: branch 1 taken
1111 57: for (unsigned I = 0; I != NumFixIts; ++I) {
1112 3: const CodeModificationHint &Hint = getCodeModificationHint(I);
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3: branch 12 taken
1113 3: if (Hint.RemoveRange.isValid() &&
1114 : (Hint.RemoveRange.getBegin().isMacroID() ||
1115 : Hint.RemoveRange.getEnd().isMacroID())) {
1116 0: NumFixIts = 0;
1117 0: break;
1118 : }
1119 :
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0: branch 4 not taken
2: branch 5 taken
0: branch 6 not taken
3: branch 7 taken
1120 3: if (Hint.InsertionLoc.isValid() && Hint.InsertionLoc.isMacroID()) {
1121 0: NumFixIts = 0;
1122 0: break;
1123 : }
1124 : }
1125 :
1126 : // Write the fix-its.
1127 54: WriteUnsigned(OS, NumFixIts);
3: branch 0 taken
54: branch 1 taken
1128 57: for (unsigned I = 0; I != NumFixIts; ++I) {
1129 3: const CodeModificationHint &Hint = getCodeModificationHint(I);
1130 3: WriteSourceLocation(OS, SM, Hint.RemoveRange.getBegin());
1131 3: WriteSourceLocation(OS, SM, Hint.RemoveRange.getEnd());
1132 3: WriteSourceLocation(OS, SM, Hint.InsertionLoc);
1133 3: WriteString(OS, Hint.CodeToInsert);
1134 54: }
1135 54: }
1136 :
1137 : /// IncludeInDiagnosticCounts - This method (whose default implementation
1138 : /// returns true) indicates whether the diagnostics handled by this
1139 : /// DiagnosticClient should be included in the number of diagnostics
1140 : /// reported by Diagnostic.
1141 8019: bool DiagnosticClient::IncludeInDiagnosticCounts() const { return true; }
Generated: 2010-02-10 01:31 by zcov