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1 /*===-- clang-c/Index.h - Indexing Public C Interface -------------*- C -*-===*\
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 header provides a public inferface to a Clang library for extracting  *|
11 |* high-level symbol information from source files without exposing the full  *|
12 |* Clang C++ API.                                                             *|
13 |*                                                                            *|
14 \*===----------------------------------------------------------------------===*/
15 
16 #ifndef CLANG_C_INDEX_H
17 #define CLANG_C_INDEX_H
18 
19 #include <sys/stat.h>
20 #include <time.h>
21 #include <stdio.h>
22 
23 #include "clang-c/Platform.h"
24 #include "clang-c/CXString.h"
25 
26 /**
27  * \brief The version constants for the libclang API.
28  * CINDEX_VERSION_MINOR should increase when there are API additions.
29  * CINDEX_VERSION_MAJOR is intended for "major" source/ABI breaking changes.
30  *
31  * The policy about the libclang API was always to keep it source and ABI
32  * compatible, thus CINDEX_VERSION_MAJOR is expected to remain stable.
33  */
34 #define CINDEX_VERSION_MAJOR 0
35 #define CINDEX_VERSION_MINOR 19
36 
37 #define CINDEX_VERSION_ENCODE(major, minor) ( \
38       ((major) * 10000)                       \
39     + ((minor) *     1))
40 
41 #define CINDEX_VERSION CINDEX_VERSION_ENCODE( \
42     CINDEX_VERSION_MAJOR,                     \
43     CINDEX_VERSION_MINOR )
44 
45 #define CINDEX_VERSION_STRINGIZE_(major, minor)   \
46     #major"."#minor
47 #define CINDEX_VERSION_STRINGIZE(major, minor)    \
48     CINDEX_VERSION_STRINGIZE_(major, minor)
49 
50 #define CINDEX_VERSION_STRING CINDEX_VERSION_STRINGIZE( \
51     CINDEX_VERSION_MAJOR,                               \
52     CINDEX_VERSION_MINOR)
53 
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
57 
58 /** \defgroup CINDEX libclang: C Interface to Clang
59  *
60  * The C Interface to Clang provides a relatively small API that exposes
61  * facilities for parsing source code into an abstract syntax tree (AST),
62  * loading already-parsed ASTs, traversing the AST, associating
63  * physical source locations with elements within the AST, and other
64  * facilities that support Clang-based development tools.
65  *
66  * This C interface to Clang will never provide all of the information
67  * representation stored in Clang's C++ AST, nor should it: the intent is to
68  * maintain an API that is relatively stable from one release to the next,
69  * providing only the basic functionality needed to support development tools.
70  *
71  * To avoid namespace pollution, data types are prefixed with "CX" and
72  * functions are prefixed with "clang_".
73  *
74  * @{
75  */
76 
77 /**
78  * \brief An "index" that consists of a set of translation units that would
79  * typically be linked together into an executable or library.
80  */
81 typedef void *CXIndex;
82 
83 /**
84  * \brief A single translation unit, which resides in an index.
85  */
86 typedef struct CXTranslationUnitImpl *CXTranslationUnit;
87 
88 /**
89  * \brief Opaque pointer representing client data that will be passed through
90  * to various callbacks and visitors.
91  */
92 typedef void *CXClientData;
93 
94 /**
95  * \brief Provides the contents of a file that has not yet been saved to disk.
96  *
97  * Each CXUnsavedFile instance provides the name of a file on the
98  * system along with the current contents of that file that have not
99  * yet been saved to disk.
100  */
101 struct CXUnsavedFile {
102   /**
103    * \brief The file whose contents have not yet been saved.
104    *
105    * This file must already exist in the file system.
106    */
107   const char *Filename;
108 
109   /**
110    * \brief A buffer containing the unsaved contents of this file.
111    */
112   const char *Contents;
113 
114   /**
115    * \brief The length of the unsaved contents of this buffer.
116    */
117   unsigned long Length;
118 };
119 
120 /**
121  * \brief Describes the availability of a particular entity, which indicates
122  * whether the use of this entity will result in a warning or error due to
123  * it being deprecated or unavailable.
124  */
125 enum CXAvailabilityKind {
126   /**
127    * \brief The entity is available.
128    */
129   CXAvailability_Available,
130   /**
131    * \brief The entity is available, but has been deprecated (and its use is
132    * not recommended).
133    */
134   CXAvailability_Deprecated,
135   /**
136    * \brief The entity is not available; any use of it will be an error.
137    */
138   CXAvailability_NotAvailable,
139   /**
140    * \brief The entity is available, but not accessible; any use of it will be
141    * an error.
142    */
143   CXAvailability_NotAccessible
144 };
145 
146 /**
147  * \brief Describes a version number of the form major.minor.subminor.
148  */
149 typedef struct CXVersion {
150   /**
151    * \brief The major version number, e.g., the '10' in '10.7.3'. A negative
152    * value indicates that there is no version number at all.
153    */
154   int Major;
155   /**
156    * \brief The minor version number, e.g., the '7' in '10.7.3'. This value
157    * will be negative if no minor version number was provided, e.g., for
158    * version '10'.
159    */
160   int Minor;
161   /**
162    * \brief The subminor version number, e.g., the '3' in '10.7.3'. This value
163    * will be negative if no minor or subminor version number was provided,
164    * e.g., in version '10' or '10.7'.
165    */
166   int Subminor;
167 } CXVersion;
168 
169 /**
170  * \brief Provides a shared context for creating translation units.
171  *
172  * It provides two options:
173  *
174  * - excludeDeclarationsFromPCH: When non-zero, allows enumeration of "local"
175  * declarations (when loading any new translation units). A "local" declaration
176  * is one that belongs in the translation unit itself and not in a precompiled
177  * header that was used by the translation unit. If zero, all declarations
178  * will be enumerated.
179  *
180  * Here is an example:
181  *
182  * \code
183  *   // excludeDeclsFromPCH = 1, displayDiagnostics=1
184  *   Idx = clang_createIndex(1, 1);
185  *
186  *   // IndexTest.pch was produced with the following command:
187  *   // "clang -x c IndexTest.h -emit-ast -o IndexTest.pch"
188  *   TU = clang_createTranslationUnit(Idx, "IndexTest.pch");
189  *
190  *   // This will load all the symbols from 'IndexTest.pch'
191  *   clang_visitChildren(clang_getTranslationUnitCursor(TU),
192  *                       TranslationUnitVisitor, 0);
193  *   clang_disposeTranslationUnit(TU);
194  *
195  *   // This will load all the symbols from 'IndexTest.c', excluding symbols
196  *   // from 'IndexTest.pch'.
197  *   char *args[] = { "-Xclang", "-include-pch=IndexTest.pch" };
198  *   TU = clang_createTranslationUnitFromSourceFile(Idx, "IndexTest.c", 2, args,
199  *                                                  0, 0);
200  *   clang_visitChildren(clang_getTranslationUnitCursor(TU),
201  *                       TranslationUnitVisitor, 0);
202  *   clang_disposeTranslationUnit(TU);
203  * \endcode
204  *
205  * This process of creating the 'pch', loading it separately, and using it (via
206  * -include-pch) allows 'excludeDeclsFromPCH' to remove redundant callbacks
207  * (which gives the indexer the same performance benefit as the compiler).
208  */
209 CINDEX_LINKAGE CXIndex clang_createIndex(int excludeDeclarationsFromPCH,
210                                          int displayDiagnostics);
211 
212 /**
213  * \brief Destroy the given index.
214  *
215  * The index must not be destroyed until all of the translation units created
216  * within that index have been destroyed.
217  */
218 CINDEX_LINKAGE void clang_disposeIndex(CXIndex index);
219 
220 typedef enum {
221   /**
222    * \brief Used to indicate that no special CXIndex options are needed.
223    */
224   CXGlobalOpt_None = 0x0,
225 
226   /**
227    * \brief Used to indicate that threads that libclang creates for indexing
228    * purposes should use background priority.
229    *
230    * Affects #clang_indexSourceFile, #clang_indexTranslationUnit,
231    * #clang_parseTranslationUnit, #clang_saveTranslationUnit.
232    */
233   CXGlobalOpt_ThreadBackgroundPriorityForIndexing = 0x1,
234 
235   /**
236    * \brief Used to indicate that threads that libclang creates for editing
237    * purposes should use background priority.
238    *
239    * Affects #clang_reparseTranslationUnit, #clang_codeCompleteAt,
240    * #clang_annotateTokens
241    */
242   CXGlobalOpt_ThreadBackgroundPriorityForEditing = 0x2,
243 
244   /**
245    * \brief Used to indicate that all threads that libclang creates should use
246    * background priority.
247    */
248   CXGlobalOpt_ThreadBackgroundPriorityForAll =
249       CXGlobalOpt_ThreadBackgroundPriorityForIndexing |
250       CXGlobalOpt_ThreadBackgroundPriorityForEditing
251 
252 } CXGlobalOptFlags;
253 
254 /**
255  * \brief Sets general options associated with a CXIndex.
256  *
257  * For example:
258  * \code
259  * CXIndex idx = ...;
260  * clang_CXIndex_setGlobalOptions(idx,
261  *     clang_CXIndex_getGlobalOptions(idx) |
262  *     CXGlobalOpt_ThreadBackgroundPriorityForIndexing);
263  * \endcode
264  *
265  * \param options A bitmask of options, a bitwise OR of CXGlobalOpt_XXX flags.
266  */
267 CINDEX_LINKAGE void clang_CXIndex_setGlobalOptions(CXIndex, unsigned options);
268 
269 /**
270  * \brief Gets the general options associated with a CXIndex.
271  *
272  * \returns A bitmask of options, a bitwise OR of CXGlobalOpt_XXX flags that
273  * are associated with the given CXIndex object.
274  */
275 CINDEX_LINKAGE unsigned clang_CXIndex_getGlobalOptions(CXIndex);
276 
277 /**
278  * \defgroup CINDEX_FILES File manipulation routines
279  *
280  * @{
281  */
282 
283 /**
284  * \brief A particular source file that is part of a translation unit.
285  */
286 typedef void *CXFile;
287 
288 
289 /**
290  * \brief Retrieve the complete file and path name of the given file.
291  */
292 CINDEX_LINKAGE CXString clang_getFileName(CXFile SFile);
293 
294 /**
295  * \brief Retrieve the last modification time of the given file.
296  */
297 CINDEX_LINKAGE time_t clang_getFileTime(CXFile SFile);
298 
299 /**
300  * \brief Uniquely identifies a CXFile, that refers to the same underlying file,
301  * across an indexing session.
302  */
303 typedef struct {
304   unsigned long long data[3];
305 } CXFileUniqueID;
306 
307 /**
308  * \brief Retrieve the unique ID for the given \c file.
309  *
310  * \param file the file to get the ID for.
311  * \param outID stores the returned CXFileUniqueID.
312  * \returns If there was a failure getting the unique ID, returns non-zero,
313  * otherwise returns 0.
314 */
315 CINDEX_LINKAGE int clang_getFileUniqueID(CXFile file, CXFileUniqueID *outID);
316 
317 /**
318  * \brief Determine whether the given header is guarded against
319  * multiple inclusions, either with the conventional
320  * \#ifndef/\#define/\#endif macro guards or with \#pragma once.
321  */
322 CINDEX_LINKAGE unsigned
323 clang_isFileMultipleIncludeGuarded(CXTranslationUnit tu, CXFile file);
324 
325 /**
326  * \brief Retrieve a file handle within the given translation unit.
327  *
328  * \param tu the translation unit
329  *
330  * \param file_name the name of the file.
331  *
332  * \returns the file handle for the named file in the translation unit \p tu,
333  * or a NULL file handle if the file was not a part of this translation unit.
334  */
335 CINDEX_LINKAGE CXFile clang_getFile(CXTranslationUnit tu,
336                                     const char *file_name);
337 
338 /**
339  * @}
340  */
341 
342 /**
343  * \defgroup CINDEX_LOCATIONS Physical source locations
344  *
345  * Clang represents physical source locations in its abstract syntax tree in
346  * great detail, with file, line, and column information for the majority of
347  * the tokens parsed in the source code. These data types and functions are
348  * used to represent source location information, either for a particular
349  * point in the program or for a range of points in the program, and extract
350  * specific location information from those data types.
351  *
352  * @{
353  */
354 
355 /**
356  * \brief Identifies a specific source location within a translation
357  * unit.
358  *
359  * Use clang_getExpansionLocation() or clang_getSpellingLocation()
360  * to map a source location to a particular file, line, and column.
361  */
362 typedef struct {
363   const void *ptr_data[2];
364   unsigned int_data;
365 } CXSourceLocation;
366 
367 /**
368  * \brief Identifies a half-open character range in the source code.
369  *
370  * Use clang_getRangeStart() and clang_getRangeEnd() to retrieve the
371  * starting and end locations from a source range, respectively.
372  */
373 typedef struct {
374   const void *ptr_data[2];
375   unsigned begin_int_data;
376   unsigned end_int_data;
377 } CXSourceRange;
378 
379 /**
380  * \brief Retrieve a NULL (invalid) source location.
381  */
382 CINDEX_LINKAGE CXSourceLocation clang_getNullLocation(void);
383 
384 /**
385  * \brief Determine whether two source locations, which must refer into
386  * the same translation unit, refer to exactly the same point in the source
387  * code.
388  *
389  * \returns non-zero if the source locations refer to the same location, zero
390  * if they refer to different locations.
391  */
392 CINDEX_LINKAGE unsigned clang_equalLocations(CXSourceLocation loc1,
393                                              CXSourceLocation loc2);
394 
395 /**
396  * \brief Retrieves the source location associated with a given file/line/column
397  * in a particular translation unit.
398  */
399 CINDEX_LINKAGE CXSourceLocation clang_getLocation(CXTranslationUnit tu,
400                                                   CXFile file,
401                                                   unsigned line,
402                                                   unsigned column);
403 /**
404  * \brief Retrieves the source location associated with a given character offset
405  * in a particular translation unit.
406  */
407 CINDEX_LINKAGE CXSourceLocation clang_getLocationForOffset(CXTranslationUnit tu,
408                                                            CXFile file,
409                                                            unsigned offset);
410 
411 /**
412  * \brief Returns non-zero if the given source location is in a system header.
413  */
414 CINDEX_LINKAGE int clang_Location_isInSystemHeader(CXSourceLocation location);
415 
416 /**
417  * \brief Retrieve a NULL (invalid) source range.
418  */
419 CINDEX_LINKAGE CXSourceRange clang_getNullRange(void);
420 
421 /**
422  * \brief Retrieve a source range given the beginning and ending source
423  * locations.
424  */
425 CINDEX_LINKAGE CXSourceRange clang_getRange(CXSourceLocation begin,
426                                             CXSourceLocation end);
427 
428 /**
429  * \brief Determine whether two ranges are equivalent.
430  *
431  * \returns non-zero if the ranges are the same, zero if they differ.
432  */
433 CINDEX_LINKAGE unsigned clang_equalRanges(CXSourceRange range1,
434                                           CXSourceRange range2);
435 
436 /**
437  * \brief Returns non-zero if \p range is null.
438  */
439 CINDEX_LINKAGE int clang_Range_isNull(CXSourceRange range);
440 
441 /**
442  * \brief Retrieve the file, line, column, and offset represented by
443  * the given source location.
444  *
445  * If the location refers into a macro expansion, retrieves the
446  * location of the macro expansion.
447  *
448  * \param location the location within a source file that will be decomposed
449  * into its parts.
450  *
451  * \param file [out] if non-NULL, will be set to the file to which the given
452  * source location points.
453  *
454  * \param line [out] if non-NULL, will be set to the line to which the given
455  * source location points.
456  *
457  * \param column [out] if non-NULL, will be set to the column to which the given
458  * source location points.
459  *
460  * \param offset [out] if non-NULL, will be set to the offset into the
461  * buffer to which the given source location points.
462  */
463 CINDEX_LINKAGE void clang_getExpansionLocation(CXSourceLocation location,
464                                                CXFile *file,
465                                                unsigned *line,
466                                                unsigned *column,
467                                                unsigned *offset);
468 
469 /**
470  * \brief Retrieve the file, line, column, and offset represented by
471  * the given source location, as specified in a # line directive.
472  *
473  * Example: given the following source code in a file somefile.c
474  *
475  * \code
476  * #123 "dummy.c" 1
477  *
478  * static int func(void)
479  * {
480  *     return 0;
481  * }
482  * \endcode
483  *
484  * the location information returned by this function would be
485  *
486  * File: dummy.c Line: 124 Column: 12
487  *
488  * whereas clang_getExpansionLocation would have returned
489  *
490  * File: somefile.c Line: 3 Column: 12
491  *
492  * \param location the location within a source file that will be decomposed
493  * into its parts.
494  *
495  * \param filename [out] if non-NULL, will be set to the filename of the
496  * source location. Note that filenames returned will be for "virtual" files,
497  * which don't necessarily exist on the machine running clang - e.g. when
498  * parsing preprocessed output obtained from a different environment. If
499  * a non-NULL value is passed in, remember to dispose of the returned value
500  * using \c clang_disposeString() once you've finished with it. For an invalid
501  * source location, an empty string is returned.
502  *
503  * \param line [out] if non-NULL, will be set to the line number of the
504  * source location. For an invalid source location, zero is returned.
505  *
506  * \param column [out] if non-NULL, will be set to the column number of the
507  * source location. For an invalid source location, zero is returned.
508  */
509 CINDEX_LINKAGE void clang_getPresumedLocation(CXSourceLocation location,
510                                               CXString *filename,
511                                               unsigned *line,
512                                               unsigned *column);
513 
514 /**
515  * \brief Legacy API to retrieve the file, line, column, and offset represented
516  * by the given source location.
517  *
518  * This interface has been replaced by the newer interface
519  * #clang_getExpansionLocation(). See that interface's documentation for
520  * details.
521  */
522 CINDEX_LINKAGE void clang_getInstantiationLocation(CXSourceLocation location,
523                                                    CXFile *file,
524                                                    unsigned *line,
525                                                    unsigned *column,
526                                                    unsigned *offset);
527 
528 /**
529  * \brief Retrieve the file, line, column, and offset represented by
530  * the given source location.
531  *
532  * If the location refers into a macro instantiation, return where the
533  * location was originally spelled in the source file.
534  *
535  * \param location the location within a source file that will be decomposed
536  * into its parts.
537  *
538  * \param file [out] if non-NULL, will be set to the file to which the given
539  * source location points.
540  *
541  * \param line [out] if non-NULL, will be set to the line to which the given
542  * source location points.
543  *
544  * \param column [out] if non-NULL, will be set to the column to which the given
545  * source location points.
546  *
547  * \param offset [out] if non-NULL, will be set to the offset into the
548  * buffer to which the given source location points.
549  */
550 CINDEX_LINKAGE void clang_getSpellingLocation(CXSourceLocation location,
551                                               CXFile *file,
552                                               unsigned *line,
553                                               unsigned *column,
554                                               unsigned *offset);
555 
556 /**
557  * \brief Retrieve the file, line, column, and offset represented by
558  * the given source location.
559  *
560  * If the location refers into a macro expansion, return where the macro was
561  * expanded or where the macro argument was written, if the location points at
562  * a macro argument.
563  *
564  * \param location the location within a source file that will be decomposed
565  * into its parts.
566  *
567  * \param file [out] if non-NULL, will be set to the file to which the given
568  * source location points.
569  *
570  * \param line [out] if non-NULL, will be set to the line to which the given
571  * source location points.
572  *
573  * \param column [out] if non-NULL, will be set to the column to which the given
574  * source location points.
575  *
576  * \param offset [out] if non-NULL, will be set to the offset into the
577  * buffer to which the given source location points.
578  */
579 CINDEX_LINKAGE void clang_getFileLocation(CXSourceLocation location,
580                                           CXFile *file,
581                                           unsigned *line,
582                                           unsigned *column,
583                                           unsigned *offset);
584 
585 /**
586  * \brief Retrieve a source location representing the first character within a
587  * source range.
588  */
589 CINDEX_LINKAGE CXSourceLocation clang_getRangeStart(CXSourceRange range);
590 
591 /**
592  * \brief Retrieve a source location representing the last character within a
593  * source range.
594  */
595 CINDEX_LINKAGE CXSourceLocation clang_getRangeEnd(CXSourceRange range);
596 
597 /**
598  * @}
599  */
600 
601 /**
602  * \defgroup CINDEX_DIAG Diagnostic reporting
603  *
604  * @{
605  */
606 
607 /**
608  * \brief Describes the severity of a particular diagnostic.
609  */
610 enum CXDiagnosticSeverity {
611   /**
612    * \brief A diagnostic that has been suppressed, e.g., by a command-line
613    * option.
614    */
615   CXDiagnostic_Ignored = 0,
616 
617   /**
618    * \brief This diagnostic is a note that should be attached to the
619    * previous (non-note) diagnostic.
620    */
621   CXDiagnostic_Note    = 1,
622 
623   /**
624    * \brief This diagnostic indicates suspicious code that may not be
625    * wrong.
626    */
627   CXDiagnostic_Warning = 2,
628 
629   /**
630    * \brief This diagnostic indicates that the code is ill-formed.
631    */
632   CXDiagnostic_Error   = 3,
633 
634   /**
635    * \brief This diagnostic indicates that the code is ill-formed such
636    * that future parser recovery is unlikely to produce useful
637    * results.
638    */
639   CXDiagnostic_Fatal   = 4
640 };
641 
642 /**
643  * \brief A single diagnostic, containing the diagnostic's severity,
644  * location, text, source ranges, and fix-it hints.
645  */
646 typedef void *CXDiagnostic;
647 
648 /**
649  * \brief A group of CXDiagnostics.
650  */
651 typedef void *CXDiagnosticSet;
652 
653 /**
654  * \brief Determine the number of diagnostics in a CXDiagnosticSet.
655  */
656 CINDEX_LINKAGE unsigned clang_getNumDiagnosticsInSet(CXDiagnosticSet Diags);
657 
658 /**
659  * \brief Retrieve a diagnostic associated with the given CXDiagnosticSet.
660  *
661  * \param Diags the CXDiagnosticSet to query.
662  * \param Index the zero-based diagnostic number to retrieve.
663  *
664  * \returns the requested diagnostic. This diagnostic must be freed
665  * via a call to \c clang_disposeDiagnostic().
666  */
667 CINDEX_LINKAGE CXDiagnostic clang_getDiagnosticInSet(CXDiagnosticSet Diags,
668                                                      unsigned Index);
669 
670 
671 /**
672  * \brief Describes the kind of error that occurred (if any) in a call to
673  * \c clang_loadDiagnostics.
674  */
675 enum CXLoadDiag_Error {
676   /**
677    * \brief Indicates that no error occurred.
678    */
679   CXLoadDiag_None = 0,
680 
681   /**
682    * \brief Indicates that an unknown error occurred while attempting to
683    * deserialize diagnostics.
684    */
685   CXLoadDiag_Unknown = 1,
686 
687   /**
688    * \brief Indicates that the file containing the serialized diagnostics
689    * could not be opened.
690    */
691   CXLoadDiag_CannotLoad = 2,
692 
693   /**
694    * \brief Indicates that the serialized diagnostics file is invalid or
695    * corrupt.
696    */
697   CXLoadDiag_InvalidFile = 3
698 };
699 
700 /**
701  * \brief Deserialize a set of diagnostics from a Clang diagnostics bitcode
702  * file.
703  *
704  * \param file The name of the file to deserialize.
705  * \param error A pointer to a enum value recording if there was a problem
706  *        deserializing the diagnostics.
707  * \param errorString A pointer to a CXString for recording the error string
708  *        if the file was not successfully loaded.
709  *
710  * \returns A loaded CXDiagnosticSet if successful, and NULL otherwise.  These
711  * diagnostics should be released using clang_disposeDiagnosticSet().
712  */
713 CINDEX_LINKAGE CXDiagnosticSet clang_loadDiagnostics(const char *file,
714                                                   enum CXLoadDiag_Error *error,
715                                                   CXString *errorString);
716 
717 /**
718  * \brief Release a CXDiagnosticSet and all of its contained diagnostics.
719  */
720 CINDEX_LINKAGE void clang_disposeDiagnosticSet(CXDiagnosticSet Diags);
721 
722 /**
723  * \brief Retrieve the child diagnostics of a CXDiagnostic.
724  *
725  * This CXDiagnosticSet does not need to be released by
726  * clang_diposeDiagnosticSet.
727  */
728 CINDEX_LINKAGE CXDiagnosticSet clang_getChildDiagnostics(CXDiagnostic D);
729 
730 /**
731  * \brief Determine the number of diagnostics produced for the given
732  * translation unit.
733  */
734 CINDEX_LINKAGE unsigned clang_getNumDiagnostics(CXTranslationUnit Unit);
735 
736 /**
737  * \brief Retrieve a diagnostic associated with the given translation unit.
738  *
739  * \param Unit the translation unit to query.
740  * \param Index the zero-based diagnostic number to retrieve.
741  *
742  * \returns the requested diagnostic. This diagnostic must be freed
743  * via a call to \c clang_disposeDiagnostic().
744  */
745 CINDEX_LINKAGE CXDiagnostic clang_getDiagnostic(CXTranslationUnit Unit,
746                                                 unsigned Index);
747 
748 /**
749  * \brief Retrieve the complete set of diagnostics associated with a
750  *        translation unit.
751  *
752  * \param Unit the translation unit to query.
753  */
754 CINDEX_LINKAGE CXDiagnosticSet
755   clang_getDiagnosticSetFromTU(CXTranslationUnit Unit);
756 
757 /**
758  * \brief Destroy a diagnostic.
759  */
760 CINDEX_LINKAGE void clang_disposeDiagnostic(CXDiagnostic Diagnostic);
761 
762 /**
763  * \brief Options to control the display of diagnostics.
764  *
765  * The values in this enum are meant to be combined to customize the
766  * behavior of \c clang_displayDiagnostic().
767  */
768 enum CXDiagnosticDisplayOptions {
769   /**
770    * \brief Display the source-location information where the
771    * diagnostic was located.
772    *
773    * When set, diagnostics will be prefixed by the file, line, and
774    * (optionally) column to which the diagnostic refers. For example,
775    *
776    * \code
777    * test.c:28: warning: extra tokens at end of #endif directive
778    * \endcode
779    *
780    * This option corresponds to the clang flag \c -fshow-source-location.
781    */
782   CXDiagnostic_DisplaySourceLocation = 0x01,
783 
784   /**
785    * \brief If displaying the source-location information of the
786    * diagnostic, also include the column number.
787    *
788    * This option corresponds to the clang flag \c -fshow-column.
789    */
790   CXDiagnostic_DisplayColumn = 0x02,
791 
792   /**
793    * \brief If displaying the source-location information of the
794    * diagnostic, also include information about source ranges in a
795    * machine-parsable format.
796    *
797    * This option corresponds to the clang flag
798    * \c -fdiagnostics-print-source-range-info.
799    */
800   CXDiagnostic_DisplaySourceRanges = 0x04,
801 
802   /**
803    * \brief Display the option name associated with this diagnostic, if any.
804    *
805    * The option name displayed (e.g., -Wconversion) will be placed in brackets
806    * after the diagnostic text. This option corresponds to the clang flag
807    * \c -fdiagnostics-show-option.
808    */
809   CXDiagnostic_DisplayOption = 0x08,
810 
811   /**
812    * \brief Display the category number associated with this diagnostic, if any.
813    *
814    * The category number is displayed within brackets after the diagnostic text.
815    * This option corresponds to the clang flag
816    * \c -fdiagnostics-show-category=id.
817    */
818   CXDiagnostic_DisplayCategoryId = 0x10,
819 
820   /**
821    * \brief Display the category name associated with this diagnostic, if any.
822    *
823    * The category name is displayed within brackets after the diagnostic text.
824    * This option corresponds to the clang flag
825    * \c -fdiagnostics-show-category=name.
826    */
827   CXDiagnostic_DisplayCategoryName = 0x20
828 };
829 
830 /**
831  * \brief Format the given diagnostic in a manner that is suitable for display.
832  *
833  * This routine will format the given diagnostic to a string, rendering
834  * the diagnostic according to the various options given. The
835  * \c clang_defaultDiagnosticDisplayOptions() function returns the set of
836  * options that most closely mimics the behavior of the clang compiler.
837  *
838  * \param Diagnostic The diagnostic to print.
839  *
840  * \param Options A set of options that control the diagnostic display,
841  * created by combining \c CXDiagnosticDisplayOptions values.
842  *
843  * \returns A new string containing for formatted diagnostic.
844  */
845 CINDEX_LINKAGE CXString clang_formatDiagnostic(CXDiagnostic Diagnostic,
846                                                unsigned Options);
847 
848 /**
849  * \brief Retrieve the set of display options most similar to the
850  * default behavior of the clang compiler.
851  *
852  * \returns A set of display options suitable for use with \c
853  * clang_displayDiagnostic().
854  */
855 CINDEX_LINKAGE unsigned clang_defaultDiagnosticDisplayOptions(void);
856 
857 /**
858  * \brief Determine the severity of the given diagnostic.
859  */
860 CINDEX_LINKAGE enum CXDiagnosticSeverity
861 clang_getDiagnosticSeverity(CXDiagnostic);
862 
863 /**
864  * \brief Retrieve the source location of the given diagnostic.
865  *
866  * This location is where Clang would print the caret ('^') when
867  * displaying the diagnostic on the command line.
868  */
869 CINDEX_LINKAGE CXSourceLocation clang_getDiagnosticLocation(CXDiagnostic);
870 
871 /**
872  * \brief Retrieve the text of the given diagnostic.
873  */
874 CINDEX_LINKAGE CXString clang_getDiagnosticSpelling(CXDiagnostic);
875 
876 /**
877  * \brief Retrieve the name of the command-line option that enabled this
878  * diagnostic.
879  *
880  * \param Diag The diagnostic to be queried.
881  *
882  * \param Disable If non-NULL, will be set to the option that disables this
883  * diagnostic (if any).
884  *
885  * \returns A string that contains the command-line option used to enable this
886  * warning, such as "-Wconversion" or "-pedantic".
887  */
888 CINDEX_LINKAGE CXString clang_getDiagnosticOption(CXDiagnostic Diag,
889                                                   CXString *Disable);
890 
891 /**
892  * \brief Retrieve the category number for this diagnostic.
893  *
894  * Diagnostics can be categorized into groups along with other, related
895  * diagnostics (e.g., diagnostics under the same warning flag). This routine
896  * retrieves the category number for the given diagnostic.
897  *
898  * \returns The number of the category that contains this diagnostic, or zero
899  * if this diagnostic is uncategorized.
900  */
901 CINDEX_LINKAGE unsigned clang_getDiagnosticCategory(CXDiagnostic);
902 
903 /**
904  * \brief Retrieve the name of a particular diagnostic category.  This
905  *  is now deprecated.  Use clang_getDiagnosticCategoryText()
906  *  instead.
907  *
908  * \param Category A diagnostic category number, as returned by
909  * \c clang_getDiagnosticCategory().
910  *
911  * \returns The name of the given diagnostic category.
912  */
913 CINDEX_DEPRECATED CINDEX_LINKAGE
914 CXString clang_getDiagnosticCategoryName(unsigned Category);
915 
916 /**
917  * \brief Retrieve the diagnostic category text for a given diagnostic.
918  *
919  * \returns The text of the given diagnostic category.
920  */
921 CINDEX_LINKAGE CXString clang_getDiagnosticCategoryText(CXDiagnostic);
922 
923 /**
924  * \brief Determine the number of source ranges associated with the given
925  * diagnostic.
926  */
927 CINDEX_LINKAGE unsigned clang_getDiagnosticNumRanges(CXDiagnostic);
928 
929 /**
930  * \brief Retrieve a source range associated with the diagnostic.
931  *
932  * A diagnostic's source ranges highlight important elements in the source
933  * code. On the command line, Clang displays source ranges by
934  * underlining them with '~' characters.
935  *
936  * \param Diagnostic the diagnostic whose range is being extracted.
937  *
938  * \param Range the zero-based index specifying which range to
939  *
940  * \returns the requested source range.
941  */
942 CINDEX_LINKAGE CXSourceRange clang_getDiagnosticRange(CXDiagnostic Diagnostic,
943                                                       unsigned Range);
944 
945 /**
946  * \brief Determine the number of fix-it hints associated with the
947  * given diagnostic.
948  */
949 CINDEX_LINKAGE unsigned clang_getDiagnosticNumFixIts(CXDiagnostic Diagnostic);
950 
951 /**
952  * \brief Retrieve the replacement information for a given fix-it.
953  *
954  * Fix-its are described in terms of a source range whose contents
955  * should be replaced by a string. This approach generalizes over
956  * three kinds of operations: removal of source code (the range covers
957  * the code to be removed and the replacement string is empty),
958  * replacement of source code (the range covers the code to be
959  * replaced and the replacement string provides the new code), and
960  * insertion (both the start and end of the range point at the
961  * insertion location, and the replacement string provides the text to
962  * insert).
963  *
964  * \param Diagnostic The diagnostic whose fix-its are being queried.
965  *
966  * \param FixIt The zero-based index of the fix-it.
967  *
968  * \param ReplacementRange The source range whose contents will be
969  * replaced with the returned replacement string. Note that source
970  * ranges are half-open ranges [a, b), so the source code should be
971  * replaced from a and up to (but not including) b.
972  *
973  * \returns A string containing text that should be replace the source
974  * code indicated by the \c ReplacementRange.
975  */
976 CINDEX_LINKAGE CXString clang_getDiagnosticFixIt(CXDiagnostic Diagnostic,
977                                                  unsigned FixIt,
978                                                CXSourceRange *ReplacementRange);
979 
980 /**
981  * @}
982  */
983 
984 /**
985  * \defgroup CINDEX_TRANSLATION_UNIT Translation unit manipulation
986  *
987  * The routines in this group provide the ability to create and destroy
988  * translation units from files, either by parsing the contents of the files or
989  * by reading in a serialized representation of a translation unit.
990  *
991  * @{
992  */
993 
994 /**
995  * \brief Get the original translation unit source file name.
996  */
997 CINDEX_LINKAGE CXString
998 clang_getTranslationUnitSpelling(CXTranslationUnit CTUnit);
999 
1000 /**
1001  * \brief Return the CXTranslationUnit for a given source file and the provided
1002  * command line arguments one would pass to the compiler.
1003  *
1004  * Note: The 'source_filename' argument is optional.  If the caller provides a
1005  * NULL pointer, the name of the source file is expected to reside in the
1006  * specified command line arguments.
1007  *
1008  * Note: When encountered in 'clang_command_line_args', the following options
1009  * are ignored:
1010  *
1011  *   '-c'
1012  *   '-emit-ast'
1013  *   '-fsyntax-only'
1014  *   '-o \<output file>'  (both '-o' and '\<output file>' are ignored)
1015  *
1016  * \param CIdx The index object with which the translation unit will be
1017  * associated.
1018  *
1019  * \param source_filename The name of the source file to load, or NULL if the
1020  * source file is included in \p clang_command_line_args.
1021  *
1022  * \param num_clang_command_line_args The number of command-line arguments in
1023  * \p clang_command_line_args.
1024  *
1025  * \param clang_command_line_args The command-line arguments that would be
1026  * passed to the \c clang executable if it were being invoked out-of-process.
1027  * These command-line options will be parsed and will affect how the translation
1028  * unit is parsed. Note that the following options are ignored: '-c',
1029  * '-emit-ast', '-fsyntax-only' (which is the default), and '-o \<output file>'.
1030  *
1031  * \param num_unsaved_files the number of unsaved file entries in \p
1032  * unsaved_files.
1033  *
1034  * \param unsaved_files the files that have not yet been saved to disk
1035  * but may be required for code completion, including the contents of
1036  * those files.  The contents and name of these files (as specified by
1037  * CXUnsavedFile) are copied when necessary, so the client only needs to
1038  * guarantee their validity until the call to this function returns.
1039  */
1040 CINDEX_LINKAGE CXTranslationUnit clang_createTranslationUnitFromSourceFile(
1041                                          CXIndex CIdx,
1042                                          const char *source_filename,
1043                                          int num_clang_command_line_args,
1044                                    const char * const *clang_command_line_args,
1045                                          unsigned num_unsaved_files,
1046                                          struct CXUnsavedFile *unsaved_files);
1047 
1048 /**
1049  * \brief Create a translation unit from an AST file (-emit-ast).
1050  */
1051 CINDEX_LINKAGE CXTranslationUnit clang_createTranslationUnit(CXIndex,
1052                                              const char *ast_filename);
1053 
1054 /**
1055  * \brief Flags that control the creation of translation units.
1056  *
1057  * The enumerators in this enumeration type are meant to be bitwise
1058  * ORed together to specify which options should be used when
1059  * constructing the translation unit.
1060  */
1061 enum CXTranslationUnit_Flags {
1062   /**
1063    * \brief Used to indicate that no special translation-unit options are
1064    * needed.
1065    */
1066   CXTranslationUnit_None = 0x0,
1067 
1068   /**
1069    * \brief Used to indicate that the parser should construct a "detailed"
1070    * preprocessing record, including all macro definitions and instantiations.
1071    *
1072    * Constructing a detailed preprocessing record requires more memory
1073    * and time to parse, since the information contained in the record
1074    * is usually not retained. However, it can be useful for
1075    * applications that require more detailed information about the
1076    * behavior of the preprocessor.
1077    */
1078   CXTranslationUnit_DetailedPreprocessingRecord = 0x01,
1079 
1080   /**
1081    * \brief Used to indicate that the translation unit is incomplete.
1082    *
1083    * When a translation unit is considered "incomplete", semantic
1084    * analysis that is typically performed at the end of the
1085    * translation unit will be suppressed. For example, this suppresses
1086    * the completion of tentative declarations in C and of
1087    * instantiation of implicitly-instantiation function templates in
1088    * C++. This option is typically used when parsing a header with the
1089    * intent of producing a precompiled header.
1090    */
1091   CXTranslationUnit_Incomplete = 0x02,
1092 
1093   /**
1094    * \brief Used to indicate that the translation unit should be built with an
1095    * implicit precompiled header for the preamble.
1096    *
1097    * An implicit precompiled header is used as an optimization when a
1098    * particular translation unit is likely to be reparsed many times
1099    * when the sources aren't changing that often. In this case, an
1100    * implicit precompiled header will be built containing all of the
1101    * initial includes at the top of the main file (what we refer to as
1102    * the "preamble" of the file). In subsequent parses, if the
1103    * preamble or the files in it have not changed, \c
1104    * clang_reparseTranslationUnit() will re-use the implicit
1105    * precompiled header to improve parsing performance.
1106    */
1107   CXTranslationUnit_PrecompiledPreamble = 0x04,
1108 
1109   /**
1110    * \brief Used to indicate that the translation unit should cache some
1111    * code-completion results with each reparse of the source file.
1112    *
1113    * Caching of code-completion results is a performance optimization that
1114    * introduces some overhead to reparsing but improves the performance of
1115    * code-completion operations.
1116    */
1117   CXTranslationUnit_CacheCompletionResults = 0x08,
1118 
1119   /**
1120    * \brief Used to indicate that the translation unit will be serialized with
1121    * \c clang_saveTranslationUnit.
1122    *
1123    * This option is typically used when parsing a header with the intent of
1124    * producing a precompiled header.
1125    */
1126   CXTranslationUnit_ForSerialization = 0x10,
1127 
1128   /**
1129    * \brief DEPRECATED: Enabled chained precompiled preambles in C++.
1130    *
1131    * Note: this is a *temporary* option that is available only while
1132    * we are testing C++ precompiled preamble support. It is deprecated.
1133    */
1134   CXTranslationUnit_CXXChainedPCH = 0x20,
1135 
1136   /**
1137    * \brief Used to indicate that function/method bodies should be skipped while
1138    * parsing.
1139    *
1140    * This option can be used to search for declarations/definitions while
1141    * ignoring the usages.
1142    */
1143   CXTranslationUnit_SkipFunctionBodies = 0x40,
1144 
1145   /**
1146    * \brief Used to indicate that brief documentation comments should be
1147    * included into the set of code completions returned from this translation
1148    * unit.
1149    */
1150   CXTranslationUnit_IncludeBriefCommentsInCodeCompletion = 0x80
1151 };
1152 
1153 /**
1154  * \brief Returns the set of flags that is suitable for parsing a translation
1155  * unit that is being edited.
1156  *
1157  * The set of flags returned provide options for \c clang_parseTranslationUnit()
1158  * to indicate that the translation unit is likely to be reparsed many times,
1159  * either explicitly (via \c clang_reparseTranslationUnit()) or implicitly
1160  * (e.g., by code completion (\c clang_codeCompletionAt())). The returned flag
1161  * set contains an unspecified set of optimizations (e.g., the precompiled
1162  * preamble) geared toward improving the performance of these routines. The
1163  * set of optimizations enabled may change from one version to the next.
1164  */
1165 CINDEX_LINKAGE unsigned clang_defaultEditingTranslationUnitOptions(void);
1166 
1167 /**
1168  * \brief Parse the given source file and the translation unit corresponding
1169  * to that file.
1170  *
1171  * This routine is the main entry point for the Clang C API, providing the
1172  * ability to parse a source file into a translation unit that can then be
1173  * queried by other functions in the API. This routine accepts a set of
1174  * command-line arguments so that the compilation can be configured in the same
1175  * way that the compiler is configured on the command line.
1176  *
1177  * \param CIdx The index object with which the translation unit will be
1178  * associated.
1179  *
1180  * \param source_filename The name of the source file to load, or NULL if the
1181  * source file is included in \p command_line_args.
1182  *
1183  * \param command_line_args The command-line arguments that would be
1184  * passed to the \c clang executable if it were being invoked out-of-process.
1185  * These command-line options will be parsed and will affect how the translation
1186  * unit is parsed. Note that the following options are ignored: '-c',
1187  * '-emit-ast', '-fsyntax-only' (which is the default), and '-o \<output file>'.
1188  *
1189  * \param num_command_line_args The number of command-line arguments in
1190  * \p command_line_args.
1191  *
1192  * \param unsaved_files the files that have not yet been saved to disk
1193  * but may be required for parsing, including the contents of
1194  * those files.  The contents and name of these files (as specified by
1195  * CXUnsavedFile) are copied when necessary, so the client only needs to
1196  * guarantee their validity until the call to this function returns.
1197  *
1198  * \param num_unsaved_files the number of unsaved file entries in \p
1199  * unsaved_files.
1200  *
1201  * \param options A bitmask of options that affects how the translation unit
1202  * is managed but not its compilation. This should be a bitwise OR of the
1203  * CXTranslationUnit_XXX flags.
1204  *
1205  * \returns A new translation unit describing the parsed code and containing
1206  * any diagnostics produced by the compiler. If there is a failure from which
1207  * the compiler cannot recover, returns NULL.
1208  */
1209 CINDEX_LINKAGE CXTranslationUnit clang_parseTranslationUnit(CXIndex CIdx,
1210                                                     const char *source_filename,
1211                                          const char * const *command_line_args,
1212                                                       int num_command_line_args,
1213                                             struct CXUnsavedFile *unsaved_files,
1214                                                      unsigned num_unsaved_files,
1215                                                             unsigned options);
1216 
1217 /**
1218  * \brief Flags that control how translation units are saved.
1219  *
1220  * The enumerators in this enumeration type are meant to be bitwise
1221  * ORed together to specify which options should be used when
1222  * saving the translation unit.
1223  */
1224 enum CXSaveTranslationUnit_Flags {
1225   /**
1226    * \brief Used to indicate that no special saving options are needed.
1227    */
1228   CXSaveTranslationUnit_None = 0x0
1229 };
1230 
1231 /**
1232  * \brief Returns the set of flags that is suitable for saving a translation
1233  * unit.
1234  *
1235  * The set of flags returned provide options for
1236  * \c clang_saveTranslationUnit() by default. The returned flag
1237  * set contains an unspecified set of options that save translation units with
1238  * the most commonly-requested data.
1239  */
1240 CINDEX_LINKAGE unsigned clang_defaultSaveOptions(CXTranslationUnit TU);
1241 
1242 /**
1243  * \brief Describes the kind of error that occurred (if any) in a call to
1244  * \c clang_saveTranslationUnit().
1245  */
1246 enum CXSaveError {
1247   /**
1248    * \brief Indicates that no error occurred while saving a translation unit.
1249    */
1250   CXSaveError_None = 0,
1251 
1252   /**
1253    * \brief Indicates that an unknown error occurred while attempting to save
1254    * the file.
1255    *
1256    * This error typically indicates that file I/O failed when attempting to
1257    * write the file.
1258    */
1259   CXSaveError_Unknown = 1,
1260 
1261   /**
1262    * \brief Indicates that errors during translation prevented this attempt
1263    * to save the translation unit.
1264    *
1265    * Errors that prevent the translation unit from being saved can be
1266    * extracted using \c clang_getNumDiagnostics() and \c clang_getDiagnostic().
1267    */
1268   CXSaveError_TranslationErrors = 2,
1269 
1270   /**
1271    * \brief Indicates that the translation unit to be saved was somehow
1272    * invalid (e.g., NULL).
1273    */
1274   CXSaveError_InvalidTU = 3
1275 };
1276 
1277 /**
1278  * \brief Saves a translation unit into a serialized representation of
1279  * that translation unit on disk.
1280  *
1281  * Any translation unit that was parsed without error can be saved
1282  * into a file. The translation unit can then be deserialized into a
1283  * new \c CXTranslationUnit with \c clang_createTranslationUnit() or,
1284  * if it is an incomplete translation unit that corresponds to a
1285  * header, used as a precompiled header when parsing other translation
1286  * units.
1287  *
1288  * \param TU The translation unit to save.
1289  *
1290  * \param FileName The file to which the translation unit will be saved.
1291  *
1292  * \param options A bitmask of options that affects how the translation unit
1293  * is saved. This should be a bitwise OR of the
1294  * CXSaveTranslationUnit_XXX flags.
1295  *
1296  * \returns A value that will match one of the enumerators of the CXSaveError
1297  * enumeration. Zero (CXSaveError_None) indicates that the translation unit was
1298  * saved successfully, while a non-zero value indicates that a problem occurred.
1299  */
1300 CINDEX_LINKAGE int clang_saveTranslationUnit(CXTranslationUnit TU,
1301                                              const char *FileName,
1302                                              unsigned options);
1303 
1304 /**
1305  * \brief Destroy the specified CXTranslationUnit object.
1306  */
1307 CINDEX_LINKAGE void clang_disposeTranslationUnit(CXTranslationUnit);
1308 
1309 /**
1310  * \brief Flags that control the reparsing of translation units.
1311  *
1312  * The enumerators in this enumeration type are meant to be bitwise
1313  * ORed together to specify which options should be used when
1314  * reparsing the translation unit.
1315  */
1316 enum CXReparse_Flags {
1317   /**
1318    * \brief Used to indicate that no special reparsing options are needed.
1319    */
1320   CXReparse_None = 0x0
1321 };
1322 
1323 /**
1324  * \brief Returns the set of flags that is suitable for reparsing a translation
1325  * unit.
1326  *
1327  * The set of flags returned provide options for
1328  * \c clang_reparseTranslationUnit() by default. The returned flag
1329  * set contains an unspecified set of optimizations geared toward common uses
1330  * of reparsing. The set of optimizations enabled may change from one version
1331  * to the next.
1332  */
1333 CINDEX_LINKAGE unsigned clang_defaultReparseOptions(CXTranslationUnit TU);
1334 
1335 /**
1336  * \brief Reparse the source files that produced this translation unit.
1337  *
1338  * This routine can be used to re-parse the source files that originally
1339  * created the given translation unit, for example because those source files
1340  * have changed (either on disk or as passed via \p unsaved_files). The
1341  * source code will be reparsed with the same command-line options as it
1342  * was originally parsed.
1343  *
1344  * Reparsing a translation unit invalidates all cursors and source locations
1345  * that refer into that translation unit. This makes reparsing a translation
1346  * unit semantically equivalent to destroying the translation unit and then
1347  * creating a new translation unit with the same command-line arguments.
1348  * However, it may be more efficient to reparse a translation
1349  * unit using this routine.
1350  *
1351  * \param TU The translation unit whose contents will be re-parsed. The
1352  * translation unit must originally have been built with
1353  * \c clang_createTranslationUnitFromSourceFile().
1354  *
1355  * \param num_unsaved_files The number of unsaved file entries in \p
1356  * unsaved_files.
1357  *
1358  * \param unsaved_files The files that have not yet been saved to disk
1359  * but may be required for parsing, including the contents of
1360  * those files.  The contents and name of these files (as specified by
1361  * CXUnsavedFile) are copied when necessary, so the client only needs to
1362  * guarantee their validity until the call to this function returns.
1363  *
1364  * \param options A bitset of options composed of the flags in CXReparse_Flags.
1365  * The function \c clang_defaultReparseOptions() produces a default set of
1366  * options recommended for most uses, based on the translation unit.
1367  *
1368  * \returns 0 if the sources could be reparsed. A non-zero value will be
1369  * returned if reparsing was impossible, such that the translation unit is
1370  * invalid. In such cases, the only valid call for \p TU is
1371  * \c clang_disposeTranslationUnit(TU).
1372  */
1373 CINDEX_LINKAGE int clang_reparseTranslationUnit(CXTranslationUnit TU,
1374                                                 unsigned num_unsaved_files,
1375                                           struct CXUnsavedFile *unsaved_files,
1376                                                 unsigned options);
1377 
1378 /**
1379   * \brief Categorizes how memory is being used by a translation unit.
1380   */
1381 enum CXTUResourceUsageKind {
1382   CXTUResourceUsage_AST = 1,
1383   CXTUResourceUsage_Identifiers = 2,
1384   CXTUResourceUsage_Selectors = 3,
1385   CXTUResourceUsage_GlobalCompletionResults = 4,
1386   CXTUResourceUsage_SourceManagerContentCache = 5,
1387   CXTUResourceUsage_AST_SideTables = 6,
1388   CXTUResourceUsage_SourceManager_Membuffer_Malloc = 7,
1389   CXTUResourceUsage_SourceManager_Membuffer_MMap = 8,
1390   CXTUResourceUsage_ExternalASTSource_Membuffer_Malloc = 9,
1391   CXTUResourceUsage_ExternalASTSource_Membuffer_MMap = 10,
1392   CXTUResourceUsage_Preprocessor = 11,
1393   CXTUResourceUsage_PreprocessingRecord = 12,
1394   CXTUResourceUsage_SourceManager_DataStructures = 13,
1395   CXTUResourceUsage_Preprocessor_HeaderSearch = 14,
1396   CXTUResourceUsage_MEMORY_IN_BYTES_BEGIN = CXTUResourceUsage_AST,
1397   CXTUResourceUsage_MEMORY_IN_BYTES_END =
1398     CXTUResourceUsage_Preprocessor_HeaderSearch,
1399 
1400   CXTUResourceUsage_First = CXTUResourceUsage_AST,
1401   CXTUResourceUsage_Last = CXTUResourceUsage_Preprocessor_HeaderSearch
1402 };
1403 
1404 /**
1405   * \brief Returns the human-readable null-terminated C string that represents
1406   *  the name of the memory category.  This string should never be freed.
1407   */
1408 CINDEX_LINKAGE
1409 const char *clang_getTUResourceUsageName(enum CXTUResourceUsageKind kind);
1410 
1411 typedef struct CXTUResourceUsageEntry {
1412   /* \brief The memory usage category. */
1413   enum CXTUResourceUsageKind kind;
1414   /* \brief Amount of resources used.
1415       The units will depend on the resource kind. */
1416   unsigned long amount;
1417 } CXTUResourceUsageEntry;
1418 
1419 /**
1420   * \brief The memory usage of a CXTranslationUnit, broken into categories.
1421   */
1422 typedef struct CXTUResourceUsage {
1423   /* \brief Private data member, used for queries. */
1424   void *data;
1425 
1426   /* \brief The number of entries in the 'entries' array. */
1427   unsigned numEntries;
1428 
1429   /* \brief An array of key-value pairs, representing the breakdown of memory
1430             usage. */
1431   CXTUResourceUsageEntry *entries;
1432 
1433 } CXTUResourceUsage;
1434 
1435 /**
1436   * \brief Return the memory usage of a translation unit.  This object
1437   *  should be released with clang_disposeCXTUResourceUsage().
1438   */
1439 CINDEX_LINKAGE CXTUResourceUsage clang_getCXTUResourceUsage(CXTranslationUnit TU);
1440 
1441 CINDEX_LINKAGE void clang_disposeCXTUResourceUsage(CXTUResourceUsage usage);
1442 
1443 /**
1444  * @}
1445  */
1446 
1447 /**
1448  * \brief Describes the kind of entity that a cursor refers to.
1449  */
1450 enum CXCursorKind {
1451   /* Declarations */
1452   /**
1453    * \brief A declaration whose specific kind is not exposed via this
1454    * interface.
1455    *
1456    * Unexposed declarations have the same operations as any other kind
1457    * of declaration; one can extract their location information,
1458    * spelling, find their definitions, etc. However, the specific kind
1459    * of the declaration is not reported.
1460    */
1461   CXCursor_UnexposedDecl                 = 1,
1462   /** \brief A C or C++ struct. */
1463   CXCursor_StructDecl                    = 2,
1464   /** \brief A C or C++ union. */
1465   CXCursor_UnionDecl                     = 3,
1466   /** \brief A C++ class. */
1467   CXCursor_ClassDecl                     = 4,
1468   /** \brief An enumeration. */
1469   CXCursor_EnumDecl                      = 5,
1470   /**
1471    * \brief A field (in C) or non-static data member (in C++) in a
1472    * struct, union, or C++ class.
1473    */
1474   CXCursor_FieldDecl                     = 6,
1475   /** \brief An enumerator constant. */
1476   CXCursor_EnumConstantDecl              = 7,
1477   /** \brief A function. */
1478   CXCursor_FunctionDecl                  = 8,
1479   /** \brief A variable. */
1480   CXCursor_VarDecl                       = 9,
1481   /** \brief A function or method parameter. */
1482   CXCursor_ParmDecl                      = 10,
1483   /** \brief An Objective-C \@interface. */
1484   CXCursor_ObjCInterfaceDecl             = 11,
1485   /** \brief An Objective-C \@interface for a category. */
1486   CXCursor_ObjCCategoryDecl              = 12,
1487   /** \brief An Objective-C \@protocol declaration. */
1488   CXCursor_ObjCProtocolDecl              = 13,
1489   /** \brief An Objective-C \@property declaration. */
1490   CXCursor_ObjCPropertyDecl              = 14,
1491   /** \brief An Objective-C instance variable. */
1492   CXCursor_ObjCIvarDecl                  = 15,
1493   /** \brief An Objective-C instance method. */
1494   CXCursor_ObjCInstanceMethodDecl        = 16,
1495   /** \brief An Objective-C class method. */
1496   CXCursor_ObjCClassMethodDecl           = 17,
1497   /** \brief An Objective-C \@implementation. */
1498   CXCursor_ObjCImplementationDecl        = 18,
1499   /** \brief An Objective-C \@implementation for a category. */
1500   CXCursor_ObjCCategoryImplDecl          = 19,
1501   /** \brief A typedef */
1502   CXCursor_TypedefDecl                   = 20,
1503   /** \brief A C++ class method. */
1504   CXCursor_CXXMethod                     = 21,
1505   /** \brief A C++ namespace. */
1506   CXCursor_Namespace                     = 22,
1507   /** \brief A linkage specification, e.g. 'extern "C"'. */
1508   CXCursor_LinkageSpec                   = 23,
1509   /** \brief A C++ constructor. */
1510   CXCursor_Constructor                   = 24,
1511   /** \brief A C++ destructor. */
1512   CXCursor_Destructor                    = 25,
1513   /** \brief A C++ conversion function. */
1514   CXCursor_ConversionFunction            = 26,
1515   /** \brief A C++ template type parameter. */
1516   CXCursor_TemplateTypeParameter         = 27,
1517   /** \brief A C++ non-type template parameter. */
1518   CXCursor_NonTypeTemplateParameter      = 28,
1519   /** \brief A C++ template template parameter. */
1520   CXCursor_TemplateTemplateParameter     = 29,
1521   /** \brief A C++ function template. */
1522   CXCursor_FunctionTemplate              = 30,
1523   /** \brief A C++ class template. */
1524   CXCursor_ClassTemplate                 = 31,
1525   /** \brief A C++ class template partial specialization. */
1526   CXCursor_ClassTemplatePartialSpecialization = 32,
1527   /** \brief A C++ namespace alias declaration. */
1528   CXCursor_NamespaceAlias                = 33,
1529   /** \brief A C++ using directive. */
1530   CXCursor_UsingDirective                = 34,
1531   /** \brief A C++ using declaration. */
1532   CXCursor_UsingDeclaration              = 35,
1533   /** \brief A C++ alias declaration */
1534   CXCursor_TypeAliasDecl                 = 36,
1535   /** \brief An Objective-C \@synthesize definition. */
1536   CXCursor_ObjCSynthesizeDecl            = 37,
1537   /** \brief An Objective-C \@dynamic definition. */
1538   CXCursor_ObjCDynamicDecl               = 38,
1539   /** \brief An access specifier. */
1540   CXCursor_CXXAccessSpecifier            = 39,
1541 
1542   CXCursor_FirstDecl                     = CXCursor_UnexposedDecl,
1543   CXCursor_LastDecl                      = CXCursor_CXXAccessSpecifier,
1544 
1545   /* References */
1546   CXCursor_FirstRef                      = 40, /* Decl references */
1547   CXCursor_ObjCSuperClassRef             = 40,
1548   CXCursor_ObjCProtocolRef               = 41,
1549   CXCursor_ObjCClassRef                  = 42,
1550   /**
1551    * \brief A reference to a type declaration.
1552    *
1553    * A type reference occurs anywhere where a type is named but not
1554    * declared. For example, given:
1555    *
1556    * \code
1557    * typedef unsigned size_type;
1558    * size_type size;
1559    * \endcode
1560    *
1561    * The typedef is a declaration of size_type (CXCursor_TypedefDecl),
1562    * while the type of the variable "size" is referenced. The cursor
1563    * referenced by the type of size is the typedef for size_type.
1564    */
1565   CXCursor_TypeRef                       = 43,
1566   CXCursor_CXXBaseSpecifier              = 44,
1567   /**
1568    * \brief A reference to a class template, function template, template
1569    * template parameter, or class template partial specialization.
1570    */
1571   CXCursor_TemplateRef                   = 45,
1572   /**
1573    * \brief A reference to a namespace or namespace alias.
1574    */
1575   CXCursor_NamespaceRef                  = 46,
1576   /**
1577    * \brief A reference to a member of a struct, union, or class that occurs in
1578    * some non-expression context, e.g., a designated initializer.
1579    */
1580   CXCursor_MemberRef                     = 47,
1581   /**
1582    * \brief A reference to a labeled statement.
1583    *
1584    * This cursor kind is used to describe the jump to "start_over" in the
1585    * goto statement in the following example:
1586    *
1587    * \code
1588    *   start_over:
1589    *     ++counter;
1590    *
1591    *     goto start_over;
1592    * \endcode
1593    *
1594    * A label reference cursor refers to a label statement.
1595    */
1596   CXCursor_LabelRef                      = 48,
1597 
1598   /**
1599    * \brief A reference to a set of overloaded functions or function templates
1600    * that has not yet been resolved to a specific function or function template.
1601    *
1602    * An overloaded declaration reference cursor occurs in C++ templates where
1603    * a dependent name refers to a function. For example:
1604    *
1605    * \code
1606    * template<typename T> void swap(T&, T&);
1607    *
1608    * struct X { ... };
1609    * void swap(X&, X&);
1610    *
1611    * template<typename T>
1612    * void reverse(T* first, T* last) {
1613    *   while (first < last - 1) {
1614    *     swap(*first, *--last);
1615    *     ++first;
1616    *   }
1617    * }
1618    *
1619    * struct Y { };
1620    * void swap(Y&, Y&);
1621    * \endcode
1622    *
1623    * Here, the identifier "swap" is associated with an overloaded declaration
1624    * reference. In the template definition, "swap" refers to either of the two
1625    * "swap" functions declared above, so both results will be available. At
1626    * instantiation time, "swap" may also refer to other functions found via
1627    * argument-dependent lookup (e.g., the "swap" function at the end of the
1628    * example).
1629    *
1630    * The functions \c clang_getNumOverloadedDecls() and
1631    * \c clang_getOverloadedDecl() can be used to retrieve the definitions
1632    * referenced by this cursor.
1633    */
1634   CXCursor_OverloadedDeclRef             = 49,
1635 
1636   /**
1637    * \brief A reference to a variable that occurs in some non-expression
1638    * context, e.g., a C++ lambda capture list.
1639    */
1640   CXCursor_VariableRef                   = 50,
1641 
1642   CXCursor_LastRef                       = CXCursor_VariableRef,
1643 
1644   /* Error conditions */
1645   CXCursor_FirstInvalid                  = 70,
1646   CXCursor_InvalidFile                   = 70,
1647   CXCursor_NoDeclFound                   = 71,
1648   CXCursor_NotImplemented                = 72,
1649   CXCursor_InvalidCode                   = 73,
1650   CXCursor_LastInvalid                   = CXCursor_InvalidCode,
1651 
1652   /* Expressions */
1653   CXCursor_FirstExpr                     = 100,
1654 
1655   /**
1656    * \brief An expression whose specific kind is not exposed via this
1657    * interface.
1658    *
1659    * Unexposed expressions have the same operations as any other kind
1660    * of expression; one can extract their location information,
1661    * spelling, children, etc. However, the specific kind of the
1662    * expression is not reported.
1663    */
1664   CXCursor_UnexposedExpr                 = 100,
1665 
1666   /**
1667    * \brief An expression that refers to some value declaration, such
1668    * as a function, varible, or enumerator.
1669    */
1670   CXCursor_DeclRefExpr                   = 101,
1671 
1672   /**
1673    * \brief An expression that refers to a member of a struct, union,
1674    * class, Objective-C class, etc.
1675    */
1676   CXCursor_MemberRefExpr                 = 102,
1677 
1678   /** \brief An expression that calls a function. */
1679   CXCursor_CallExpr                      = 103,
1680 
1681   /** \brief An expression that sends a message to an Objective-C
1682    object or class. */
1683   CXCursor_ObjCMessageExpr               = 104,
1684 
1685   /** \brief An expression that represents a block literal. */
1686   CXCursor_BlockExpr                     = 105,
1687 
1688   /** \brief An integer literal.
1689    */
1690   CXCursor_IntegerLiteral                = 106,
1691 
1692   /** \brief A floating point number literal.
1693    */
1694   CXCursor_FloatingLiteral               = 107,
1695 
1696   /** \brief An imaginary number literal.
1697    */
1698   CXCursor_ImaginaryLiteral              = 108,
1699 
1700   /** \brief A string literal.
1701    */
1702   CXCursor_StringLiteral                 = 109,
1703 
1704   /** \brief A character literal.
1705    */
1706   CXCursor_CharacterLiteral              = 110,
1707 
1708   /** \brief A parenthesized expression, e.g. "(1)".
1709    *
1710    * This AST node is only formed if full location information is requested.
1711    */
1712   CXCursor_ParenExpr                     = 111,
1713 
1714   /** \brief This represents the unary-expression's (except sizeof and
1715    * alignof).
1716    */
1717   CXCursor_UnaryOperator                 = 112,
1718 
1719   /** \brief [C99 6.5.2.1] Array Subscripting.
1720    */
1721   CXCursor_ArraySubscriptExpr            = 113,
1722 
1723   /** \brief A builtin binary operation expression such as "x + y" or
1724    * "x <= y".
1725    */
1726   CXCursor_BinaryOperator                = 114,
1727 
1728   /** \brief Compound assignment such as "+=".
1729    */
1730   CXCursor_CompoundAssignOperator        = 115,
1731 
1732   /** \brief The ?: ternary operator.
1733    */
1734   CXCursor_ConditionalOperator           = 116,
1735 
1736   /** \brief An explicit cast in C (C99 6.5.4) or a C-style cast in C++
1737    * (C++ [expr.cast]), which uses the syntax (Type)expr.
1738    *
1739    * For example: (int)f.
1740    */
1741   CXCursor_CStyleCastExpr                = 117,
1742 
1743   /** \brief [C99 6.5.2.5]
1744    */
1745   CXCursor_CompoundLiteralExpr           = 118,
1746 
1747   /** \brief Describes an C or C++ initializer list.
1748    */
1749   CXCursor_InitListExpr                  = 119,
1750 
1751   /** \brief The GNU address of label extension, representing &&label.
1752    */
1753   CXCursor_AddrLabelExpr                 = 120,
1754 
1755   /** \brief This is the GNU Statement Expression extension: ({int X=4; X;})
1756    */
1757   CXCursor_StmtExpr                      = 121,
1758 
1759   /** \brief Represents a C11 generic selection.
1760    */
1761   CXCursor_GenericSelectionExpr          = 122,
1762 
1763   /** \brief Implements the GNU __null extension, which is a name for a null
1764    * pointer constant that has integral type (e.g., int or long) and is the same
1765    * size and alignment as a pointer.
1766    *
1767    * The __null extension is typically only used by system headers, which define
1768    * NULL as __null in C++ rather than using 0 (which is an integer that may not
1769    * match the size of a pointer).
1770    */
1771   CXCursor_GNUNullExpr                   = 123,
1772 
1773   /** \brief C++'s static_cast<> expression.
1774    */
1775   CXCursor_CXXStaticCastExpr             = 124,
1776 
1777   /** \brief C++'s dynamic_cast<> expression.
1778    */
1779   CXCursor_CXXDynamicCastExpr            = 125,
1780 
1781   /** \brief C++'s reinterpret_cast<> expression.
1782    */
1783   CXCursor_CXXReinterpretCastExpr        = 126,
1784 
1785   /** \brief C++'s const_cast<> expression.
1786    */
1787   CXCursor_CXXConstCastExpr              = 127,
1788 
1789   /** \brief Represents an explicit C++ type conversion that uses "functional"
1790    * notion (C++ [expr.type.conv]).
1791    *
1792    * Example:
1793    * \code
1794    *   x = int(0.5);
1795    * \endcode
1796    */
1797   CXCursor_CXXFunctionalCastExpr         = 128,
1798 
1799   /** \brief A C++ typeid expression (C++ [expr.typeid]).
1800    */
1801   CXCursor_CXXTypeidExpr                 = 129,
1802 
1803   /** \brief [C++ 2.13.5] C++ Boolean Literal.
1804    */
1805   CXCursor_CXXBoolLiteralExpr            = 130,
1806 
1807   /** \brief [C++0x 2.14.7] C++ Pointer Literal.
1808    */
1809   CXCursor_CXXNullPtrLiteralExpr         = 131,
1810 
1811   /** \brief Represents the "this" expression in C++
1812    */
1813   CXCursor_CXXThisExpr                   = 132,
1814 
1815   /** \brief [C++ 15] C++ Throw Expression.
1816    *
1817    * This handles 'throw' and 'throw' assignment-expression. When
1818    * assignment-expression isn't present, Op will be null.
1819    */
1820   CXCursor_CXXThrowExpr                  = 133,
1821 
1822   /** \brief A new expression for memory allocation and constructor calls, e.g:
1823    * "new CXXNewExpr(foo)".
1824    */
1825   CXCursor_CXXNewExpr                    = 134,
1826 
1827   /** \brief A delete expression for memory deallocation and destructor calls,
1828    * e.g. "delete[] pArray".
1829    */
1830   CXCursor_CXXDeleteExpr                 = 135,
1831 
1832   /** \brief A unary expression.
1833    */
1834   CXCursor_UnaryExpr                     = 136,
1835 
1836   /** \brief An Objective-C string literal i.e. @"foo".
1837    */
1838   CXCursor_ObjCStringLiteral             = 137,
1839 
1840   /** \brief An Objective-C \@encode expression.
1841    */
1842   CXCursor_ObjCEncodeExpr                = 138,
1843 
1844   /** \brief An Objective-C \@selector expression.
1845    */
1846   CXCursor_ObjCSelectorExpr              = 139,
1847 
1848   /** \brief An Objective-C \@protocol expression.
1849    */
1850   CXCursor_ObjCProtocolExpr              = 140,
1851 
1852   /** \brief An Objective-C "bridged" cast expression, which casts between
1853    * Objective-C pointers and C pointers, transferring ownership in the process.
1854    *
1855    * \code
1856    *   NSString *str = (__bridge_transfer NSString *)CFCreateString();
1857    * \endcode
1858    */
1859   CXCursor_ObjCBridgedCastExpr           = 141,
1860 
1861   /** \brief Represents a C++0x pack expansion that produces a sequence of
1862    * expressions.
1863    *
1864    * A pack expansion expression contains a pattern (which itself is an
1865    * expression) followed by an ellipsis. For example:
1866    *
1867    * \code
1868    * template<typename F, typename ...Types>
1869    * void forward(F f, Types &&...args) {
1870    *  f(static_cast<Types&&>(args)...);
1871    * }
1872    * \endcode
1873    */
1874   CXCursor_PackExpansionExpr             = 142,
1875 
1876   /** \brief Represents an expression that computes the length of a parameter
1877    * pack.
1878    *
1879    * \code
1880    * template<typename ...Types>
1881    * struct count {
1882    *   static const unsigned value = sizeof...(Types);
1883    * };
1884    * \endcode
1885    */
1886   CXCursor_SizeOfPackExpr                = 143,
1887 
1888   /* \brief Represents a C++ lambda expression that produces a local function
1889    * object.
1890    *
1891    * \code
1892    * void abssort(float *x, unsigned N) {
1893    *   std::sort(x, x + N,
1894    *             [](float a, float b) {
1895    *               return std::abs(a) < std::abs(b);
1896    *             });
1897    * }
1898    * \endcode
1899    */
1900   CXCursor_LambdaExpr                    = 144,
1901 
1902   /** \brief Objective-c Boolean Literal.
1903    */
1904   CXCursor_ObjCBoolLiteralExpr           = 145,
1905 
1906   /** \brief Represents the "self" expression in a ObjC method.
1907    */
1908   CXCursor_ObjCSelfExpr                  = 146,
1909 
1910   CXCursor_LastExpr                      = CXCursor_ObjCSelfExpr,
1911 
1912   /* Statements */
1913   CXCursor_FirstStmt                     = 200,
1914   /**
1915    * \brief A statement whose specific kind is not exposed via this
1916    * interface.
1917    *
1918    * Unexposed statements have the same operations as any other kind of
1919    * statement; one can extract their location information, spelling,
1920    * children, etc. However, the specific kind of the statement is not
1921    * reported.
1922    */
1923   CXCursor_UnexposedStmt                 = 200,
1924 
1925   /** \brief A labelled statement in a function.
1926    *
1927    * This cursor kind is used to describe the "start_over:" label statement in
1928    * the following example:
1929    *
1930    * \code
1931    *   start_over:
1932    *     ++counter;
1933    * \endcode
1934    *
1935    */
1936   CXCursor_LabelStmt                     = 201,
1937 
1938   /** \brief A group of statements like { stmt stmt }.
1939    *
1940    * This cursor kind is used to describe compound statements, e.g. function
1941    * bodies.
1942    */
1943   CXCursor_CompoundStmt                  = 202,
1944 
1945   /** \brief A case statment.
1946    */
1947   CXCursor_CaseStmt                      = 203,
1948 
1949   /** \brief A default statement.
1950    */
1951   CXCursor_DefaultStmt                   = 204,
1952 
1953   /** \brief An if statement
1954    */
1955   CXCursor_IfStmt                        = 205,
1956 
1957   /** \brief A switch statement.
1958    */
1959   CXCursor_SwitchStmt                    = 206,
1960 
1961   /** \brief A while statement.
1962    */
1963   CXCursor_WhileStmt                     = 207,
1964 
1965   /** \brief A do statement.
1966    */
1967   CXCursor_DoStmt                        = 208,
1968 
1969   /** \brief A for statement.
1970    */
1971   CXCursor_ForStmt                       = 209,
1972 
1973   /** \brief A goto statement.
1974    */
1975   CXCursor_GotoStmt                      = 210,
1976 
1977   /** \brief An indirect goto statement.
1978    */
1979   CXCursor_IndirectGotoStmt              = 211,
1980 
1981   /** \brief A continue statement.
1982    */
1983   CXCursor_ContinueStmt                  = 212,
1984 
1985   /** \brief A break statement.
1986    */
1987   CXCursor_BreakStmt                     = 213,
1988 
1989   /** \brief A return statement.
1990    */
1991   CXCursor_ReturnStmt                    = 214,
1992 
1993   /** \brief A GCC inline assembly statement extension.
1994    */
1995   CXCursor_GCCAsmStmt                    = 215,
1996   CXCursor_AsmStmt                       = CXCursor_GCCAsmStmt,
1997 
1998   /** \brief Objective-C's overall \@try-\@catch-\@finally statement.
1999    */
2000   CXCursor_ObjCAtTryStmt                 = 216,
2001 
2002   /** \brief Objective-C's \@catch statement.
2003    */
2004   CXCursor_ObjCAtCatchStmt               = 217,
2005 
2006   /** \brief Objective-C's \@finally statement.
2007    */
2008   CXCursor_ObjCAtFinallyStmt             = 218,
2009 
2010   /** \brief Objective-C's \@throw statement.
2011    */
2012   CXCursor_ObjCAtThrowStmt               = 219,
2013 
2014   /** \brief Objective-C's \@synchronized statement.
2015    */
2016   CXCursor_ObjCAtSynchronizedStmt        = 220,
2017 
2018   /** \brief Objective-C's autorelease pool statement.
2019    */
2020   CXCursor_ObjCAutoreleasePoolStmt       = 221,
2021 
2022   /** \brief Objective-C's collection statement.
2023    */
2024   CXCursor_ObjCForCollectionStmt         = 222,
2025 
2026   /** \brief C++'s catch statement.
2027    */
2028   CXCursor_CXXCatchStmt                  = 223,
2029 
2030   /** \brief C++'s try statement.
2031    */
2032   CXCursor_CXXTryStmt                    = 224,
2033 
2034   /** \brief C++'s for (* : *) statement.
2035    */
2036   CXCursor_CXXForRangeStmt               = 225,
2037 
2038   /** \brief Windows Structured Exception Handling's try statement.
2039    */
2040   CXCursor_SEHTryStmt                    = 226,
2041 
2042   /** \brief Windows Structured Exception Handling's except statement.
2043    */
2044   CXCursor_SEHExceptStmt                 = 227,
2045 
2046   /** \brief Windows Structured Exception Handling's finally statement.
2047    */
2048   CXCursor_SEHFinallyStmt                = 228,
2049 
2050   /** \brief A MS inline assembly statement extension.
2051    */
2052   CXCursor_MSAsmStmt                     = 229,
2053 
2054   /** \brief The null satement ";": C99 6.8.3p3.
2055    *
2056    * This cursor kind is used to describe the null statement.
2057    */
2058   CXCursor_NullStmt                      = 230,
2059 
2060   /** \brief Adaptor class for mixing declarations with statements and
2061    * expressions.
2062    */
2063   CXCursor_DeclStmt                      = 231,
2064 
2065   /** \brief OpenMP parallel directive.
2066    */
2067   CXCursor_OMPParallelDirective          = 232,
2068 
2069   CXCursor_LastStmt                      = CXCursor_OMPParallelDirective,
2070 
2071   /**
2072    * \brief Cursor that represents the translation unit itself.
2073    *
2074    * The translation unit cursor exists primarily to act as the root
2075    * cursor for traversing the contents of a translation unit.
2076    */
2077   CXCursor_TranslationUnit               = 300,
2078 
2079   /* Attributes */
2080   CXCursor_FirstAttr                     = 400,
2081   /**
2082    * \brief An attribute whose specific kind is not exposed via this
2083    * interface.
2084    */
2085   CXCursor_UnexposedAttr                 = 400,
2086 
2087   CXCursor_IBActionAttr                  = 401,
2088   CXCursor_IBOutletAttr                  = 402,
2089   CXCursor_IBOutletCollectionAttr        = 403,
2090   CXCursor_CXXFinalAttr                  = 404,
2091   CXCursor_CXXOverrideAttr               = 405,
2092   CXCursor_AnnotateAttr                  = 406,
2093   CXCursor_AsmLabelAttr                  = 407,
2094   CXCursor_LastAttr                      = CXCursor_AsmLabelAttr,
2095 
2096   /* Preprocessing */
2097   CXCursor_PreprocessingDirective        = 500,
2098   CXCursor_MacroDefinition               = 501,
2099   CXCursor_MacroExpansion                = 502,
2100   CXCursor_MacroInstantiation            = CXCursor_MacroExpansion,
2101   CXCursor_InclusionDirective            = 503,
2102   CXCursor_FirstPreprocessing            = CXCursor_PreprocessingDirective,
2103   CXCursor_LastPreprocessing             = CXCursor_InclusionDirective,
2104 
2105   /* Extra Declarations */
2106   /**
2107    * \brief A module import declaration.
2108    */
2109   CXCursor_ModuleImportDecl              = 600,
2110   CXCursor_FirstExtraDecl                = CXCursor_ModuleImportDecl,
2111   CXCursor_LastExtraDecl                 = CXCursor_ModuleImportDecl
2112 };
2113 
2114 /**
2115  * \brief A cursor representing some element in the abstract syntax tree for
2116  * a translation unit.
2117  *
2118  * The cursor abstraction unifies the different kinds of entities in a
2119  * program--declaration, statements, expressions, references to declarations,
2120  * etc.--under a single "cursor" abstraction with a common set of operations.
2121  * Common operation for a cursor include: getting the physical location in
2122  * a source file where the cursor points, getting the name associated with a
2123  * cursor, and retrieving cursors for any child nodes of a particular cursor.
2124  *
2125  * Cursors can be produced in two specific ways.
2126  * clang_getTranslationUnitCursor() produces a cursor for a translation unit,
2127  * from which one can use clang_visitChildren() to explore the rest of the
2128  * translation unit. clang_getCursor() maps from a physical source location
2129  * to the entity that resides at that location, allowing one to map from the
2130  * source code into the AST.
2131  */
2132 typedef struct {
2133   enum CXCursorKind kind;
2134   int xdata;
2135   const void *data[3];
2136 } CXCursor;
2137 
2138 /**
2139  * \brief A comment AST node.
2140  */
2141 typedef struct {
2142   const void *ASTNode;
2143   CXTranslationUnit TranslationUnit;
2144 } CXComment;
2145 
2146 /**
2147  * \defgroup CINDEX_CURSOR_MANIP Cursor manipulations
2148  *
2149  * @{
2150  */
2151 
2152 /**
2153  * \brief Retrieve the NULL cursor, which represents no entity.
2154  */
2155 CINDEX_LINKAGE CXCursor clang_getNullCursor(void);
2156 
2157 /**
2158  * \brief Retrieve the cursor that represents the given translation unit.
2159  *
2160  * The translation unit cursor can be used to start traversing the
2161  * various declarations within the given translation unit.
2162  */
2163 CINDEX_LINKAGE CXCursor clang_getTranslationUnitCursor(CXTranslationUnit);
2164 
2165 /**
2166  * \brief Determine whether two cursors are equivalent.
2167  */
2168 CINDEX_LINKAGE unsigned clang_equalCursors(CXCursor, CXCursor);
2169 
2170 /**
2171  * \brief Returns non-zero if \p cursor is null.
2172  */
2173 CINDEX_LINKAGE int clang_Cursor_isNull(CXCursor cursor);
2174 
2175 /**
2176  * \brief Compute a hash value for the given cursor.
2177  */
2178 CINDEX_LINKAGE unsigned clang_hashCursor(CXCursor);
2179 
2180 /**
2181  * \brief Retrieve the kind of the given cursor.
2182  */
2183 CINDEX_LINKAGE enum CXCursorKind clang_getCursorKind(CXCursor);
2184 
2185 /**
2186  * \brief Determine whether the given cursor kind represents a declaration.
2187  */
2188 CINDEX_LINKAGE unsigned clang_isDeclaration(enum CXCursorKind);
2189 
2190 /**
2191  * \brief Determine whether the given cursor kind represents a simple
2192  * reference.
2193  *
2194  * Note that other kinds of cursors (such as expressions) can also refer to
2195  * other cursors. Use clang_getCursorReferenced() to determine whether a
2196  * particular cursor refers to another entity.
2197  */
2198 CINDEX_LINKAGE unsigned clang_isReference(enum CXCursorKind);
2199 
2200 /**
2201  * \brief Determine whether the given cursor kind represents an expression.
2202  */
2203 CINDEX_LINKAGE unsigned clang_isExpression(enum CXCursorKind);
2204 
2205 /**
2206  * \brief Determine whether the given cursor kind represents a statement.
2207  */
2208 CINDEX_LINKAGE unsigned clang_isStatement(enum CXCursorKind);
2209 
2210 /**
2211  * \brief Determine whether the given cursor kind represents an attribute.
2212  */
2213 CINDEX_LINKAGE unsigned clang_isAttribute(enum CXCursorKind);
2214 
2215 /**
2216  * \brief Determine whether the given cursor kind represents an invalid
2217  * cursor.
2218  */
2219 CINDEX_LINKAGE unsigned clang_isInvalid(enum CXCursorKind);
2220 
2221 /**
2222  * \brief Determine whether the given cursor kind represents a translation
2223  * unit.
2224  */
2225 CINDEX_LINKAGE unsigned clang_isTranslationUnit(enum CXCursorKind);
2226 
2227 /***
2228  * \brief Determine whether the given cursor represents a preprocessing
2229  * element, such as a preprocessor directive or macro instantiation.
2230  */
2231 CINDEX_LINKAGE unsigned clang_isPreprocessing(enum CXCursorKind);
2232 
2233 /***
2234  * \brief Determine whether the given cursor represents a currently
2235  *  unexposed piece of the AST (e.g., CXCursor_UnexposedStmt).
2236  */
2237 CINDEX_LINKAGE unsigned clang_isUnexposed(enum CXCursorKind);
2238 
2239 /**
2240  * \brief Describe the linkage of the entity referred to by a cursor.
2241  */
2242 enum CXLinkageKind {
2243   /** \brief This value indicates that no linkage information is available
2244    * for a provided CXCursor. */
2245   CXLinkage_Invalid,
2246   /**
2247    * \brief This is the linkage for variables, parameters, and so on that
2248    *  have automatic storage.  This covers normal (non-extern) local variables.
2249    */
2250   CXLinkage_NoLinkage,
2251   /** \brief This is the linkage for static variables and static functions. */
2252   CXLinkage_Internal,
2253   /** \brief This is the linkage for entities with external linkage that live
2254    * in C++ anonymous namespaces.*/
2255   CXLinkage_UniqueExternal,
2256   /** \brief This is the linkage for entities with true, external linkage. */
2257   CXLinkage_External
2258 };
2259 
2260 /**
2261  * \brief Determine the linkage of the entity referred to by a given cursor.
2262  */
2263 CINDEX_LINKAGE enum CXLinkageKind clang_getCursorLinkage(CXCursor cursor);
2264 
2265 /**
2266  * \brief Determine the availability of the entity that this cursor refers to,
2267  * taking the current target platform into account.
2268  *
2269  * \param cursor The cursor to query.
2270  *
2271  * \returns The availability of the cursor.
2272  */
2273 CINDEX_LINKAGE enum CXAvailabilityKind
2274 clang_getCursorAvailability(CXCursor cursor);
2275 
2276 /**
2277  * Describes the availability of a given entity on a particular platform, e.g.,
2278  * a particular class might only be available on Mac OS 10.7 or newer.
2279  */
2280 typedef struct CXPlatformAvailability {
2281   /**
2282    * \brief A string that describes the platform for which this structure
2283    * provides availability information.
2284    *
2285    * Possible values are "ios" or "macosx".
2286    */
2287   CXString Platform;
2288   /**
2289    * \brief The version number in which this entity was introduced.
2290    */
2291   CXVersion Introduced;
2292   /**
2293    * \brief The version number in which this entity was deprecated (but is
2294    * still available).
2295    */
2296   CXVersion Deprecated;
2297   /**
2298    * \brief The version number in which this entity was obsoleted, and therefore
2299    * is no longer available.
2300    */
2301   CXVersion Obsoleted;
2302   /**
2303    * \brief Whether the entity is unconditionally unavailable on this platform.
2304    */
2305   int Unavailable;
2306   /**
2307    * \brief An optional message to provide to a user of this API, e.g., to
2308    * suggest replacement APIs.
2309    */
2310   CXString Message;
2311 } CXPlatformAvailability;
2312 
2313 /**
2314  * \brief Determine the availability of the entity that this cursor refers to
2315  * on any platforms for which availability information is known.
2316  *
2317  * \param cursor The cursor to query.
2318  *
2319  * \param always_deprecated If non-NULL, will be set to indicate whether the
2320  * entity is deprecated on all platforms.
2321  *
2322  * \param deprecated_message If non-NULL, will be set to the message text
2323  * provided along with the unconditional deprecation of this entity. The client
2324  * is responsible for deallocating this string.
2325  *
2326  * \param always_unavailable If non-NULL, will be set to indicate whether the
2327  * entity is unavailable on all platforms.
2328  *
2329  * \param unavailable_message If non-NULL, will be set to the message text
2330  * provided along with the unconditional unavailability of this entity. The
2331  * client is responsible for deallocating this string.
2332  *
2333  * \param availability If non-NULL, an array of CXPlatformAvailability instances
2334  * that will be populated with platform availability information, up to either
2335  * the number of platforms for which availability information is available (as
2336  * returned by this function) or \c availability_size, whichever is smaller.
2337  *
2338  * \param availability_size The number of elements available in the
2339  * \c availability array.
2340  *
2341  * \returns The number of platforms (N) for which availability information is
2342  * available (which is unrelated to \c availability_size).
2343  *
2344  * Note that the client is responsible for calling
2345  * \c clang_disposeCXPlatformAvailability to free each of the
2346  * platform-availability structures returned. There are
2347  * \c min(N, availability_size) such structures.
2348  */
2349 CINDEX_LINKAGE int
2350 clang_getCursorPlatformAvailability(CXCursor cursor,
2351                                     int *always_deprecated,
2352                                     CXString *deprecated_message,
2353                                     int *always_unavailable,
2354                                     CXString *unavailable_message,
2355                                     CXPlatformAvailability *availability,
2356                                     int availability_size);
2357 
2358 /**
2359  * \brief Free the memory associated with a \c CXPlatformAvailability structure.
2360  */
2361 CINDEX_LINKAGE void
2362 clang_disposeCXPlatformAvailability(CXPlatformAvailability *availability);
2363 
2364 /**
2365  * \brief Describe the "language" of the entity referred to by a cursor.
2366  */
2367 CINDEX_LINKAGE enum CXLanguageKind {
2368   CXLanguage_Invalid = 0,
2369   CXLanguage_C,
2370   CXLanguage_ObjC,
2371   CXLanguage_CPlusPlus
2372 };
2373 
2374 /**
2375  * \brief Determine the "language" of the entity referred to by a given cursor.
2376  */
2377 CINDEX_LINKAGE enum CXLanguageKind clang_getCursorLanguage(CXCursor cursor);
2378 
2379 /**
2380  * \brief Returns the translation unit that a cursor originated from.
2381  */
2382 CINDEX_LINKAGE CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor);
2383 
2384 
2385 /**
2386  * \brief A fast container representing a set of CXCursors.
2387  */
2388 typedef struct CXCursorSetImpl *CXCursorSet;
2389 
2390 /**
2391  * \brief Creates an empty CXCursorSet.
2392  */
2393 CINDEX_LINKAGE CXCursorSet clang_createCXCursorSet(void);
2394 
2395 /**
2396  * \brief Disposes a CXCursorSet and releases its associated memory.
2397  */
2398 CINDEX_LINKAGE void clang_disposeCXCursorSet(CXCursorSet cset);
2399 
2400 /**
2401  * \brief Queries a CXCursorSet to see if it contains a specific CXCursor.
2402  *
2403  * \returns non-zero if the set contains the specified cursor.
2404 */
2405 CINDEX_LINKAGE unsigned clang_CXCursorSet_contains(CXCursorSet cset,
2406                                                    CXCursor cursor);
2407 
2408 /**
2409  * \brief Inserts a CXCursor into a CXCursorSet.
2410  *
2411  * \returns zero if the CXCursor was already in the set, and non-zero otherwise.
2412 */
2413 CINDEX_LINKAGE unsigned clang_CXCursorSet_insert(CXCursorSet cset,
2414                                                  CXCursor cursor);
2415 
2416 /**
2417  * \brief Determine the semantic parent of the given cursor.
2418  *
2419  * The semantic parent of a cursor is the cursor that semantically contains
2420  * the given \p cursor. For many declarations, the lexical and semantic parents
2421  * are equivalent (the lexical parent is returned by
2422  * \c clang_getCursorLexicalParent()). They diverge when declarations or
2423  * definitions are provided out-of-line. For example:
2424  *
2425  * \code
2426  * class C {
2427  *  void f();
2428  * };
2429  *
2430  * void C::f() { }
2431  * \endcode
2432  *
2433  * In the out-of-line definition of \c C::f, the semantic parent is the
2434  * the class \c C, of which this function is a member. The lexical parent is
2435  * the place where the declaration actually occurs in the source code; in this
2436  * case, the definition occurs in the translation unit. In general, the
2437  * lexical parent for a given entity can change without affecting the semantics
2438  * of the program, and the lexical parent of different declarations of the
2439  * same entity may be different. Changing the semantic parent of a declaration,
2440  * on the other hand, can have a major impact on semantics, and redeclarations
2441  * of a particular entity should all have the same semantic context.
2442  *
2443  * In the example above, both declarations of \c C::f have \c C as their
2444  * semantic context, while the lexical context of the first \c C::f is \c C
2445  * and the lexical context of the second \c C::f is the translation unit.
2446  *
2447  * For global declarations, the semantic parent is the translation unit.
2448  */
2449 CINDEX_LINKAGE CXCursor clang_getCursorSemanticParent(CXCursor cursor);
2450 
2451 /**
2452  * \brief Determine the lexical parent of the given cursor.
2453  *
2454  * The lexical parent of a cursor is the cursor in which the given \p cursor
2455  * was actually written. For many declarations, the lexical and semantic parents
2456  * are equivalent (the semantic parent is returned by
2457  * \c clang_getCursorSemanticParent()). They diverge when declarations or
2458  * definitions are provided out-of-line. For example:
2459  *
2460  * \code
2461  * class C {
2462  *  void f();
2463  * };
2464  *
2465  * void C::f() { }
2466  * \endcode
2467  *
2468  * In the out-of-line definition of \c C::f, the semantic parent is the
2469  * the class \c C, of which this function is a member. The lexical parent is
2470  * the place where the declaration actually occurs in the source code; in this
2471  * case, the definition occurs in the translation unit. In general, the
2472  * lexical parent for a given entity can change without affecting the semantics
2473  * of the program, and the lexical parent of different declarations of the
2474  * same entity may be different. Changing the semantic parent of a declaration,
2475  * on the other hand, can have a major impact on semantics, and redeclarations
2476  * of a particular entity should all have the same semantic context.
2477  *
2478  * In the example above, both declarations of \c C::f have \c C as their
2479  * semantic context, while the lexical context of the first \c C::f is \c C
2480  * and the lexical context of the second \c C::f is the translation unit.
2481  *
2482  * For declarations written in the global scope, the lexical parent is
2483  * the translation unit.
2484  */
2485 CINDEX_LINKAGE CXCursor clang_getCursorLexicalParent(CXCursor cursor);
2486 
2487 /**
2488  * \brief Determine the set of methods that are overridden by the given
2489  * method.
2490  *
2491  * In both Objective-C and C++, a method (aka virtual member function,
2492  * in C++) can override a virtual method in a base class. For
2493  * Objective-C, a method is said to override any method in the class's
2494  * base class, its protocols, or its categories' protocols, that has the same
2495  * selector and is of the same kind (class or instance).
2496  * If no such method exists, the search continues to the class's superclass,
2497  * its protocols, and its categories, and so on. A method from an Objective-C
2498  * implementation is considered to override the same methods as its
2499  * corresponding method in the interface.
2500  *
2501  * For C++, a virtual member function overrides any virtual member
2502  * function with the same signature that occurs in its base
2503  * classes. With multiple inheritance, a virtual member function can
2504  * override several virtual member functions coming from different
2505  * base classes.
2506  *
2507  * In all cases, this function determines the immediate overridden
2508  * method, rather than all of the overridden methods. For example, if
2509  * a method is originally declared in a class A, then overridden in B
2510  * (which in inherits from A) and also in C (which inherited from B),
2511  * then the only overridden method returned from this function when
2512  * invoked on C's method will be B's method. The client may then
2513  * invoke this function again, given the previously-found overridden
2514  * methods, to map out the complete method-override set.
2515  *
2516  * \param cursor A cursor representing an Objective-C or C++
2517  * method. This routine will compute the set of methods that this
2518  * method overrides.
2519  *
2520  * \param overridden A pointer whose pointee will be replaced with a
2521  * pointer to an array of cursors, representing the set of overridden
2522  * methods. If there are no overridden methods, the pointee will be
2523  * set to NULL. The pointee must be freed via a call to
2524  * \c clang_disposeOverriddenCursors().
2525  *
2526  * \param num_overridden A pointer to the number of overridden
2527  * functions, will be set to the number of overridden functions in the
2528  * array pointed to by \p overridden.
2529  */
2530 CINDEX_LINKAGE void clang_getOverriddenCursors(CXCursor cursor,
2531                                                CXCursor **overridden,
2532                                                unsigned *num_overridden);
2533 
2534 /**
2535  * \brief Free the set of overridden cursors returned by \c
2536  * clang_getOverriddenCursors().
2537  */
2538 CINDEX_LINKAGE void clang_disposeOverriddenCursors(CXCursor *overridden);
2539 
2540 /**
2541  * \brief Retrieve the file that is included by the given inclusion directive
2542  * cursor.
2543  */
2544 CINDEX_LINKAGE CXFile clang_getIncludedFile(CXCursor cursor);
2545 
2546 /**
2547  * @}
2548  */
2549 
2550 /**
2551  * \defgroup CINDEX_CURSOR_SOURCE Mapping between cursors and source code
2552  *
2553  * Cursors represent a location within the Abstract Syntax Tree (AST). These
2554  * routines help map between cursors and the physical locations where the
2555  * described entities occur in the source code. The mapping is provided in
2556  * both directions, so one can map from source code to the AST and back.
2557  *
2558  * @{
2559  */
2560 
2561 /**
2562  * \brief Map a source location to the cursor that describes the entity at that
2563  * location in the source code.
2564  *
2565  * clang_getCursor() maps an arbitrary source location within a translation
2566  * unit down to the most specific cursor that describes the entity at that
2567  * location. For example, given an expression \c x + y, invoking
2568  * clang_getCursor() with a source location pointing to "x" will return the
2569  * cursor for "x"; similarly for "y". If the cursor points anywhere between
2570  * "x" or "y" (e.g., on the + or the whitespace around it), clang_getCursor()
2571  * will return a cursor referring to the "+" expression.
2572  *
2573  * \returns a cursor representing the entity at the given source location, or
2574  * a NULL cursor if no such entity can be found.
2575  */
2576 CINDEX_LINKAGE CXCursor clang_getCursor(CXTranslationUnit, CXSourceLocation);
2577 
2578 /**
2579  * \brief Retrieve the physical location of the source constructor referenced
2580  * by the given cursor.
2581  *
2582  * The location of a declaration is typically the location of the name of that
2583  * declaration, where the name of that declaration would occur if it is
2584  * unnamed, or some keyword that introduces that particular declaration.
2585  * The location of a reference is where that reference occurs within the
2586  * source code.
2587  */
2588 CINDEX_LINKAGE CXSourceLocation clang_getCursorLocation(CXCursor);
2589 
2590 /**
2591  * \brief Retrieve the physical extent of the source construct referenced by
2592  * the given cursor.
2593  *
2594  * The extent of a cursor starts with the file/line/column pointing at the
2595  * first character within the source construct that the cursor refers to and
2596  * ends with the last character withinin that source construct. For a
2597  * declaration, the extent covers the declaration itself. For a reference,
2598  * the extent covers the location of the reference (e.g., where the referenced
2599  * entity was actually used).
2600  */
2601 CINDEX_LINKAGE CXSourceRange clang_getCursorExtent(CXCursor);
2602 
2603 /**
2604  * @}
2605  */
2606 
2607 /**
2608  * \defgroup CINDEX_TYPES Type information for CXCursors
2609  *
2610  * @{
2611  */
2612 
2613 /**
2614  * \brief Describes the kind of type
2615  */
2616 enum CXTypeKind {
2617   /**
2618    * \brief Reprents an invalid type (e.g., where no type is available).
2619    */
2620   CXType_Invalid = 0,
2621 
2622   /**
2623    * \brief A type whose specific kind is not exposed via this
2624    * interface.
2625    */
2626   CXType_Unexposed = 1,
2627 
2628   /* Builtin types */
2629   CXType_Void = 2,
2630   CXType_Bool = 3,
2631   CXType_Char_U = 4,
2632   CXType_UChar = 5,
2633   CXType_Char16 = 6,
2634   CXType_Char32 = 7,
2635   CXType_UShort = 8,
2636   CXType_UInt = 9,
2637   CXType_ULong = 10,
2638   CXType_ULongLong = 11,
2639   CXType_UInt128 = 12,
2640   CXType_Char_S = 13,
2641   CXType_SChar = 14,
2642   CXType_WChar = 15,
2643   CXType_Short = 16,
2644   CXType_Int = 17,
2645   CXType_Long = 18,
2646   CXType_LongLong = 19,
2647   CXType_Int128 = 20,
2648   CXType_Float = 21,
2649   CXType_Double = 22,
2650   CXType_LongDouble = 23,
2651   CXType_NullPtr = 24,
2652   CXType_Overload = 25,
2653   CXType_Dependent = 26,
2654   CXType_ObjCId = 27,
2655   CXType_ObjCClass = 28,
2656   CXType_ObjCSel = 29,
2657   CXType_FirstBuiltin = CXType_Void,
2658   CXType_LastBuiltin  = CXType_ObjCSel,
2659 
2660   CXType_Complex = 100,
2661   CXType_Pointer = 101,
2662   CXType_BlockPointer = 102,
2663   CXType_LValueReference = 103,
2664   CXType_RValueReference = 104,
2665   CXType_Record = 105,
2666   CXType_Enum = 106,
2667   CXType_Typedef = 107,
2668   CXType_ObjCInterface = 108,
2669   CXType_ObjCObjectPointer = 109,
2670   CXType_FunctionNoProto = 110,
2671   CXType_FunctionProto = 111,
2672   CXType_ConstantArray = 112,
2673   CXType_Vector = 113,
2674   CXType_IncompleteArray = 114,
2675   CXType_VariableArray = 115,
2676   CXType_DependentSizedArray = 116
2677 };
2678 
2679 /**
2680  * \brief Describes the calling convention of a function type
2681  */
2682 enum CXCallingConv {
2683   CXCallingConv_Default = 0,
2684   CXCallingConv_C = 1,
2685   CXCallingConv_X86StdCall = 2,
2686   CXCallingConv_X86FastCall = 3,
2687   CXCallingConv_X86ThisCall = 4,
2688   CXCallingConv_X86Pascal = 5,
2689   CXCallingConv_AAPCS = 6,
2690   CXCallingConv_AAPCS_VFP = 7,
2691   CXCallingConv_PnaclCall = 8,
2692   CXCallingConv_IntelOclBicc = 9,
2693 
2694   CXCallingConv_Invalid = 100,
2695   CXCallingConv_Unexposed = 200
2696 };
2697 
2698 
2699 /**
2700  * \brief The type of an element in the abstract syntax tree.
2701  *
2702  */
2703 typedef struct {
2704   enum CXTypeKind kind;
2705   void *data[2];
2706 } CXType;
2707 
2708 /**
2709  * \brief Retrieve the type of a CXCursor (if any).
2710  */
2711 CINDEX_LINKAGE CXType clang_getCursorType(CXCursor C);
2712 
2713 /**
2714  * \brief Pretty-print the underlying type using the rules of the
2715  * language of the translation unit from which it came.
2716  *
2717  * If the type is invalid, an empty string is returned.
2718  */
2719 CINDEX_LINKAGE CXString clang_getTypeSpelling(CXType CT);
2720 
2721 /**
2722  * \brief Retrieve the underlying type of a typedef declaration.
2723  *
2724  * If the cursor does not reference a typedef declaration, an invalid type is
2725  * returned.
2726  */
2727 CINDEX_LINKAGE CXType clang_getTypedefDeclUnderlyingType(CXCursor C);
2728 
2729 /**
2730  * \brief Retrieve the integer type of an enum declaration.
2731  *
2732  * If the cursor does not reference an enum declaration, an invalid type is
2733  * returned.
2734  */
2735 CINDEX_LINKAGE CXType clang_getEnumDeclIntegerType(CXCursor C);
2736 
2737 /**
2738  * \brief Retrieve the integer value of an enum constant declaration as a signed
2739  *  long long.
2740  *
2741  * If the cursor does not reference an enum constant declaration, LLONG_MIN is returned.
2742  * Since this is also potentially a valid constant value, the kind of the cursor
2743  * must be verified before calling this function.
2744  */
2745 CINDEX_LINKAGE long long clang_getEnumConstantDeclValue(CXCursor C);
2746 
2747 /**
2748  * \brief Retrieve the integer value of an enum constant declaration as an unsigned
2749  *  long long.
2750  *
2751  * If the cursor does not reference an enum constant declaration, ULLONG_MAX is returned.
2752  * Since this is also potentially a valid constant value, the kind of the cursor
2753  * must be verified before calling this function.
2754  */
2755 CINDEX_LINKAGE unsigned long long clang_getEnumConstantDeclUnsignedValue(CXCursor C);
2756 
2757 /**
2758  * \brief Retrieve the bit width of a bit field declaration as an integer.
2759  *
2760  * If a cursor that is not a bit field declaration is passed in, -1 is returned.
2761  */
2762 CINDEX_LINKAGE int clang_getFieldDeclBitWidth(CXCursor C);
2763 
2764 /**
2765  * \brief Retrieve the number of non-variadic arguments associated with a given
2766  * cursor.
2767  *
2768  * The number of arguments can be determined for calls as well as for
2769  * declarations of functions or methods. For other cursors -1 is returned.
2770  */
2771 CINDEX_LINKAGE int clang_Cursor_getNumArguments(CXCursor C);
2772 
2773 /**
2774  * \brief Retrieve the argument cursor of a function or method.
2775  *
2776  * The argument cursor can be determined for calls as well as for declarations
2777  * of functions or methods. For other cursors and for invalid indices, an
2778  * invalid cursor is returned.
2779  */
2780 CINDEX_LINKAGE CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i);
2781 
2782 /**
2783  * \brief Determine whether two CXTypes represent the same type.
2784  *
2785  * \returns non-zero if the CXTypes represent the same type and
2786  *          zero otherwise.
2787  */
2788 CINDEX_LINKAGE unsigned clang_equalTypes(CXType A, CXType B);
2789 
2790 /**
2791  * \brief Return the canonical type for a CXType.
2792  *
2793  * Clang's type system explicitly models typedefs and all the ways
2794  * a specific type can be represented.  The canonical type is the underlying
2795  * type with all the "sugar" removed.  For example, if 'T' is a typedef
2796  * for 'int', the canonical type for 'T' would be 'int'.
2797  */
2798 CINDEX_LINKAGE CXType clang_getCanonicalType(CXType T);
2799 
2800 /**
2801  * \brief Determine whether a CXType has the "const" qualifier set,
2802  * without looking through typedefs that may have added "const" at a
2803  * different level.
2804  */
2805 CINDEX_LINKAGE unsigned clang_isConstQualifiedType(CXType T);
2806 
2807 /**
2808  * \brief Determine whether a CXType has the "volatile" qualifier set,
2809  * without looking through typedefs that may have added "volatile" at
2810  * a different level.
2811  */
2812 CINDEX_LINKAGE unsigned clang_isVolatileQualifiedType(CXType T);
2813 
2814 /**
2815  * \brief Determine whether a CXType has the "restrict" qualifier set,
2816  * without looking through typedefs that may have added "restrict" at a
2817  * different level.
2818  */
2819 CINDEX_LINKAGE unsigned clang_isRestrictQualifiedType(CXType T);
2820 
2821 /**
2822  * \brief For pointer types, returns the type of the pointee.
2823  */
2824 CINDEX_LINKAGE CXType clang_getPointeeType(CXType T);
2825 
2826 /**
2827  * \brief Return the cursor for the declaration of the given type.
2828  */
2829 CINDEX_LINKAGE CXCursor clang_getTypeDeclaration(CXType T);
2830 
2831 /**
2832  * Returns the Objective-C type encoding for the specified declaration.
2833  */
2834 CINDEX_LINKAGE CXString clang_getDeclObjCTypeEncoding(CXCursor C);
2835 
2836 /**
2837  * \brief Retrieve the spelling of a given CXTypeKind.
2838  */
2839 CINDEX_LINKAGE CXString clang_getTypeKindSpelling(enum CXTypeKind K);
2840 
2841 /**
2842  * \brief Retrieve the calling convention associated with a function type.
2843  *
2844  * If a non-function type is passed in, CXCallingConv_Invalid is returned.
2845  */
2846 CINDEX_LINKAGE enum CXCallingConv clang_getFunctionTypeCallingConv(CXType T);
2847 
2848 /**
2849  * \brief Retrieve the result type associated with a function type.
2850  *
2851  * If a non-function type is passed in, an invalid type is returned.
2852  */
2853 CINDEX_LINKAGE CXType clang_getResultType(CXType T);
2854 
2855 /**
2856  * \brief Retrieve the number of non-variadic arguments associated with a
2857  * function type.
2858  *
2859  * If a non-function type is passed in, -1 is returned.
2860  */
2861 CINDEX_LINKAGE int clang_getNumArgTypes(CXType T);
2862 
2863 /**
2864  * \brief Retrieve the type of an argument of a function type.
2865  *
2866  * If a non-function type is passed in or the function does not have enough
2867  * parameters, an invalid type is returned.
2868  */
2869 CINDEX_LINKAGE CXType clang_getArgType(CXType T, unsigned i);
2870 
2871 /**
2872  * \brief Return 1 if the CXType is a variadic function type, and 0 otherwise.
2873  */
2874 CINDEX_LINKAGE unsigned clang_isFunctionTypeVariadic(CXType T);
2875 
2876 /**
2877  * \brief Retrieve the result type associated with a given cursor.
2878  *
2879  * This only returns a valid type if the cursor refers to a function or method.
2880  */
2881 CINDEX_LINKAGE CXType clang_getCursorResultType(CXCursor C);
2882 
2883 /**
2884  * \brief Return 1 if the CXType is a POD (plain old data) type, and 0
2885  *  otherwise.
2886  */
2887 CINDEX_LINKAGE unsigned clang_isPODType(CXType T);
2888 
2889 /**
2890  * \brief Return the element type of an array, complex, or vector type.
2891  *
2892  * If a type is passed in that is not an array, complex, or vector type,
2893  * an invalid type is returned.
2894  */
2895 CINDEX_LINKAGE CXType clang_getElementType(CXType T);
2896 
2897 /**
2898  * \brief Return the number of elements of an array or vector type.
2899  *
2900  * If a type is passed in that is not an array or vector type,
2901  * -1 is returned.
2902  */
2903 CINDEX_LINKAGE long long clang_getNumElements(CXType T);
2904 
2905 /**
2906  * \brief Return the element type of an array type.
2907  *
2908  * If a non-array type is passed in, an invalid type is returned.
2909  */
2910 CINDEX_LINKAGE CXType clang_getArrayElementType(CXType T);
2911 
2912 /**
2913  * \brief Return the array size of a constant array.
2914  *
2915  * If a non-array type is passed in, -1 is returned.
2916  */
2917 CINDEX_LINKAGE long long clang_getArraySize(CXType T);
2918 
2919 /**
2920  * \brief List the possible error codes for \c clang_Type_getSizeOf,
2921  *   \c clang_Type_getAlignOf, \c clang_Type_getOffsetOf and
2922  *   \c clang_Cursor_getOffsetOf.
2923  *
2924  * A value of this enumeration type can be returned if the target type is not
2925  * a valid argument to sizeof, alignof or offsetof.
2926  */
2927 enum CXTypeLayoutError {
2928   /**
2929    * \brief Type is of kind CXType_Invalid.
2930    */
2931   CXTypeLayoutError_Invalid = -1,
2932   /**
2933    * \brief The type is an incomplete Type.
2934    */
2935   CXTypeLayoutError_Incomplete = -2,
2936   /**
2937    * \brief The type is a dependent Type.
2938    */
2939   CXTypeLayoutError_Dependent = -3,
2940   /**
2941    * \brief The type is not a constant size type.
2942    */
2943   CXTypeLayoutError_NotConstantSize = -4,
2944   /**
2945    * \brief The Field name is not valid for this record.
2946    */
2947   CXTypeLayoutError_InvalidFieldName = -5
2948 };
2949 
2950 /**
2951  * \brief Return the alignment of a type in bytes as per C++[expr.alignof]
2952  *   standard.
2953  *
2954  * If the type declaration is invalid, CXTypeLayoutError_Invalid is returned.
2955  * If the type declaration is an incomplete type, CXTypeLayoutError_Incomplete
2956  *   is returned.
2957  * If the type declaration is a dependent type, CXTypeLayoutError_Dependent is
2958  *   returned.
2959  * If the type declaration is not a constant size type,
2960  *   CXTypeLayoutError_NotConstantSize is returned.
2961  */
2962 CINDEX_LINKAGE long long clang_Type_getAlignOf(CXType T);
2963 
2964 /**
2965  * \brief Return the size of a type in bytes as per C++[expr.sizeof] standard.
2966  *
2967  * If the type declaration is invalid, CXTypeLayoutError_Invalid is returned.
2968  * If the type declaration is an incomplete type, CXTypeLayoutError_Incomplete
2969  *   is returned.
2970  * If the type declaration is a dependent type, CXTypeLayoutError_Dependent is
2971  *   returned.
2972  */
2973 CINDEX_LINKAGE long long clang_Type_getSizeOf(CXType T);
2974 
2975 /**
2976  * \brief Return the offset of a field named S in a record of type T in bits
2977  *   as it would be returned by __offsetof__ as per C++11[18.2p4]
2978  *
2979  * If the cursor is not a record field declaration, CXTypeLayoutError_Invalid
2980  *   is returned.
2981  * If the field's type declaration is an incomplete type,
2982  *   CXTypeLayoutError_Incomplete is returned.
2983  * If the field's type declaration is a dependent type,
2984  *   CXTypeLayoutError_Dependent is returned.
2985  * If the field's name S is not found,
2986  *   CXTypeLayoutError_InvalidFieldName is returned.
2987  */
2988 CINDEX_LINKAGE long long clang_Type_getOffsetOf(CXType T, const char *S);
2989 
2990 /**
2991  * \brief Returns non-zero if the cursor specifies a Record member that is a
2992  *   bitfield.
2993  */
2994 CINDEX_LINKAGE unsigned clang_Cursor_isBitField(CXCursor C);
2995 
2996 /**
2997  * \brief Returns 1 if the base class specified by the cursor with kind
2998  *   CX_CXXBaseSpecifier is virtual.
2999  */
3000 CINDEX_LINKAGE unsigned clang_isVirtualBase(CXCursor);
3001 
3002 /**
3003  * \brief Represents the C++ access control level to a base class for a
3004  * cursor with kind CX_CXXBaseSpecifier.
3005  */
3006 enum CX_CXXAccessSpecifier {
3007   CX_CXXInvalidAccessSpecifier,
3008   CX_CXXPublic,
3009   CX_CXXProtected,
3010   CX_CXXPrivate
3011 };
3012 
3013 /**
3014  * \brief Returns the access control level for the referenced object.
3015  *
3016  * If the cursor refers to a C++ declaration, its access control level within its
3017  * parent scope is returned. Otherwise, if the cursor refers to a base specifier or
3018  * access specifier, the specifier itself is returned.
3019  */
3020 CINDEX_LINKAGE enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor);
3021 
3022 /**
3023  * \brief Determine the number of overloaded declarations referenced by a
3024  * \c CXCursor_OverloadedDeclRef cursor.
3025  *
3026  * \param cursor The cursor whose overloaded declarations are being queried.
3027  *
3028  * \returns The number of overloaded declarations referenced by \c cursor. If it
3029  * is not a \c CXCursor_OverloadedDeclRef cursor, returns 0.
3030  */
3031 CINDEX_LINKAGE unsigned clang_getNumOverloadedDecls(CXCursor cursor);
3032 
3033 /**
3034  * \brief Retrieve a cursor for one of the overloaded declarations referenced
3035  * by a \c CXCursor_OverloadedDeclRef cursor.
3036  *
3037  * \param cursor The cursor whose overloaded declarations are being queried.
3038  *
3039  * \param index The zero-based index into the set of overloaded declarations in
3040  * the cursor.
3041  *
3042  * \returns A cursor representing the declaration referenced by the given
3043  * \c cursor at the specified \c index. If the cursor does not have an
3044  * associated set of overloaded declarations, or if the index is out of bounds,
3045  * returns \c clang_getNullCursor();
3046  */
3047 CINDEX_LINKAGE CXCursor clang_getOverloadedDecl(CXCursor cursor,
3048                                                 unsigned index);
3049 
3050 /**
3051  * @}
3052  */
3053 
3054 /**
3055  * \defgroup CINDEX_ATTRIBUTES Information for attributes
3056  *
3057  * @{
3058  */
3059 
3060 
3061 /**
3062  * \brief For cursors representing an iboutletcollection attribute,
3063  *  this function returns the collection element type.
3064  *
3065  */
3066 CINDEX_LINKAGE CXType clang_getIBOutletCollectionType(CXCursor);
3067 
3068 /**
3069  * @}
3070  */
3071 
3072 /**
3073  * \defgroup CINDEX_CURSOR_TRAVERSAL Traversing the AST with cursors
3074  *
3075  * These routines provide the ability to traverse the abstract syntax tree
3076  * using cursors.
3077  *
3078  * @{
3079  */
3080 
3081 /**
3082  * \brief Describes how the traversal of the children of a particular
3083  * cursor should proceed after visiting a particular child cursor.
3084  *
3085  * A value of this enumeration type should be returned by each
3086  * \c CXCursorVisitor to indicate how clang_visitChildren() proceed.
3087  */
3088 enum CXChildVisitResult {
3089   /**
3090    * \brief Terminates the cursor traversal.
3091    */
3092   CXChildVisit_Break,
3093   /**
3094    * \brief Continues the cursor traversal with the next sibling of
3095    * the cursor just visited, without visiting its children.
3096    */
3097   CXChildVisit_Continue,
3098   /**
3099    * \brief Recursively traverse the children of this cursor, using
3100    * the same visitor and client data.
3101    */
3102   CXChildVisit_Recurse
3103 };
3104 
3105 /**
3106  * \brief Visitor invoked for each cursor found by a traversal.
3107  *
3108  * This visitor function will be invoked for each cursor found by
3109  * clang_visitCursorChildren(). Its first argument is the cursor being
3110  * visited, its second argument is the parent visitor for that cursor,
3111  * and its third argument is the client data provided to
3112  * clang_visitCursorChildren().
3113  *
3114  * The visitor should return one of the \c CXChildVisitResult values
3115  * to direct clang_visitCursorChildren().
3116  */
3117 typedef enum CXChildVisitResult (*CXCursorVisitor)(CXCursor cursor,
3118                                                    CXCursor parent,
3119                                                    CXClientData client_data);
3120 
3121 /**
3122  * \brief Visit the children of a particular cursor.
3123  *
3124  * This function visits all the direct children of the given cursor,
3125  * invoking the given \p visitor function with the cursors of each
3126  * visited child. The traversal may be recursive, if the visitor returns
3127  * \c CXChildVisit_Recurse. The traversal may also be ended prematurely, if
3128  * the visitor returns \c CXChildVisit_Break.
3129  *
3130  * \param parent the cursor whose child may be visited. All kinds of
3131  * cursors can be visited, including invalid cursors (which, by
3132  * definition, have no children).
3133  *
3134  * \param visitor the visitor function that will be invoked for each
3135  * child of \p parent.
3136  *
3137  * \param client_data pointer data supplied by the client, which will
3138  * be passed to the visitor each time it is invoked.
3139  *
3140  * \returns a non-zero value if the traversal was terminated
3141  * prematurely by the visitor returning \c CXChildVisit_Break.
3142  */
3143 CINDEX_LINKAGE unsigned clang_visitChildren(CXCursor parent,
3144                                             CXCursorVisitor visitor,
3145                                             CXClientData client_data);
3146 #ifdef __has_feature
3147 #  if __has_feature(blocks)
3148 /**
3149  * \brief Visitor invoked for each cursor found by a traversal.
3150  *
3151  * This visitor block will be invoked for each cursor found by
3152  * clang_visitChildrenWithBlock(). Its first argument is the cursor being
3153  * visited, its second argument is the parent visitor for that cursor.
3154  *
3155  * The visitor should return one of the \c CXChildVisitResult values
3156  * to direct clang_visitChildrenWithBlock().
3157  */
3158 typedef enum CXChildVisitResult
3159      (^CXCursorVisitorBlock)(CXCursor cursor, CXCursor parent);
3160 
3161 /**
3162  * Visits the children of a cursor using the specified block.  Behaves
3163  * identically to clang_visitChildren() in all other respects.
3164  */
3165 unsigned clang_visitChildrenWithBlock(CXCursor parent,
3166                                       CXCursorVisitorBlock block);
3167 #  endif
3168 #endif
3169 
3170 /**
3171  * @}
3172  */
3173 
3174 /**
3175  * \defgroup CINDEX_CURSOR_XREF Cross-referencing in the AST
3176  *
3177  * These routines provide the ability to determine references within and
3178  * across translation units, by providing the names of the entities referenced
3179  * by cursors, follow reference cursors to the declarations they reference,
3180  * and associate declarations with their definitions.
3181  *
3182  * @{
3183  */
3184 
3185 /**
3186  * \brief Retrieve a Unified Symbol Resolution (USR) for the entity referenced
3187  * by the given cursor.
3188  *
3189  * A Unified Symbol Resolution (USR) is a string that identifies a particular
3190  * entity (function, class, variable, etc.) within a program. USRs can be
3191  * compared across translation units to determine, e.g., when references in
3192  * one translation refer to an entity defined in another translation unit.
3193  */
3194 CINDEX_LINKAGE CXString clang_getCursorUSR(CXCursor);
3195 
3196 /**
3197  * \brief Construct a USR for a specified Objective-C class.
3198  */
3199 CINDEX_LINKAGE CXString clang_constructUSR_ObjCClass(const char *class_name);
3200 
3201 /**
3202  * \brief Construct a USR for a specified Objective-C category.
3203  */
3204 CINDEX_LINKAGE CXString
3205   clang_constructUSR_ObjCCategory(const char *class_name,
3206                                  const char *category_name);
3207 
3208 /**
3209  * \brief Construct a USR for a specified Objective-C protocol.
3210  */
3211 CINDEX_LINKAGE CXString
3212   clang_constructUSR_ObjCProtocol(const char *protocol_name);
3213 
3214 
3215 /**
3216  * \brief Construct a USR for a specified Objective-C instance variable and
3217  *   the USR for its containing class.
3218  */
3219 CINDEX_LINKAGE CXString clang_constructUSR_ObjCIvar(const char *name,
3220                                                     CXString classUSR);
3221 
3222 /**
3223  * \brief Construct a USR for a specified Objective-C method and
3224  *   the USR for its containing class.
3225  */
3226 CINDEX_LINKAGE CXString clang_constructUSR_ObjCMethod(const char *name,
3227                                                       unsigned isInstanceMethod,
3228                                                       CXString classUSR);
3229 
3230 /**
3231  * \brief Construct a USR for a specified Objective-C property and the USR
3232  *  for its containing class.
3233  */
3234 CINDEX_LINKAGE CXString clang_constructUSR_ObjCProperty(const char *property,
3235                                                         CXString classUSR);
3236 
3237 /**
3238  * \brief Retrieve a name for the entity referenced by this cursor.
3239  */
3240 CINDEX_LINKAGE CXString clang_getCursorSpelling(CXCursor);
3241 
3242 /**
3243  * \brief Retrieve a range for a piece that forms the cursors spelling name.
3244  * Most of the times there is only one range for the complete spelling but for
3245  * objc methods and objc message expressions, there are multiple pieces for each
3246  * selector identifier.
3247  *
3248  * \param pieceIndex the index of the spelling name piece. If this is greater
3249  * than the actual number of pieces, it will return a NULL (invalid) range.
3250  *
3251  * \param options Reserved.
3252  */
3253 CINDEX_LINKAGE CXSourceRange clang_Cursor_getSpellingNameRange(CXCursor,
3254                                                           unsigned pieceIndex,
3255                                                           unsigned options);
3256 
3257 /**
3258  * \brief Retrieve the display name for the entity referenced by this cursor.
3259  *
3260  * The display name contains extra information that helps identify the cursor,
3261  * such as the parameters of a function or template or the arguments of a
3262  * class template specialization.
3263  */
3264 CINDEX_LINKAGE CXString clang_getCursorDisplayName(CXCursor);
3265 
3266 /** \brief For a cursor that is a reference, retrieve a cursor representing the
3267  * entity that it references.
3268  *
3269  * Reference cursors refer to other entities in the AST. For example, an
3270  * Objective-C superclass reference cursor refers to an Objective-C class.
3271  * This function produces the cursor for the Objective-C class from the
3272  * cursor for the superclass reference. If the input cursor is a declaration or
3273  * definition, it returns that declaration or definition unchanged.
3274  * Otherwise, returns the NULL cursor.
3275  */
3276 CINDEX_LINKAGE CXCursor clang_getCursorReferenced(CXCursor);
3277 
3278 /**
3279  *  \brief For a cursor that is either a reference to or a declaration
3280  *  of some entity, retrieve a cursor that describes the definition of
3281  *  that entity.
3282  *
3283  *  Some entities can be declared multiple times within a translation
3284  *  unit, but only one of those declarations can also be a
3285  *  definition. For example, given:
3286  *
3287  *  \code
3288  *  int f(int, int);
3289  *  int g(int x, int y) { return f(x, y); }
3290  *  int f(int a, int b) { return a + b; }
3291  *  int f(int, int);
3292  *  \endcode
3293  *
3294  *  there are three declarations of the function "f", but only the
3295  *  second one is a definition. The clang_getCursorDefinition()
3296  *  function will take any cursor pointing to a declaration of "f"
3297  *  (the first or fourth lines of the example) or a cursor referenced
3298  *  that uses "f" (the call to "f' inside "g") and will return a
3299  *  declaration cursor pointing to the definition (the second "f"
3300  *  declaration).
3301  *
3302  *  If given a cursor for which there is no corresponding definition,
3303  *  e.g., because there is no definition of that entity within this
3304  *  translation unit, returns a NULL cursor.
3305  */
3306 CINDEX_LINKAGE CXCursor clang_getCursorDefinition(CXCursor);
3307 
3308 /**
3309  * \brief Determine whether the declaration pointed to by this cursor
3310  * is also a definition of that entity.
3311  */
3312 CINDEX_LINKAGE unsigned clang_isCursorDefinition(CXCursor);
3313 
3314 /**
3315  * \brief Retrieve the canonical cursor corresponding to the given cursor.
3316  *
3317  * In the C family of languages, many kinds of entities can be declared several
3318  * times within a single translation unit. For example, a structure type can
3319  * be forward-declared (possibly multiple times) and later defined:
3320  *
3321  * \code
3322  * struct X;
3323  * struct X;
3324  * struct X {
3325  *   int member;
3326  * };
3327  * \endcode
3328  *
3329  * The declarations and the definition of \c X are represented by three
3330  * different cursors, all of which are declarations of the same underlying
3331  * entity. One of these cursor is considered the "canonical" cursor, which
3332  * is effectively the representative for the underlying entity. One can
3333  * determine if two cursors are declarations of the same underlying entity by
3334  * comparing their canonical cursors.
3335  *
3336  * \returns The canonical cursor for the entity referred to by the given cursor.
3337  */
3338 CINDEX_LINKAGE CXCursor clang_getCanonicalCursor(CXCursor);
3339 
3340 
3341 /**
3342  * \brief If the cursor points to a selector identifier in a objc method or
3343  * message expression, this returns the selector index.
3344  *
3345  * After getting a cursor with #clang_getCursor, this can be called to
3346  * determine if the location points to a selector identifier.
3347  *
3348  * \returns The selector index if the cursor is an objc method or message
3349  * expression and the cursor is pointing to a selector identifier, or -1
3350  * otherwise.
3351  */
3352 CINDEX_LINKAGE int clang_Cursor_getObjCSelectorIndex(CXCursor);
3353 
3354 /**
3355  * \brief Given a cursor pointing to a C++ method call or an ObjC message,
3356  * returns non-zero if the method/message is "dynamic", meaning:
3357  *
3358  * For a C++ method: the call is virtual.
3359  * For an ObjC message: the receiver is an object instance, not 'super' or a
3360  * specific class.
3361  *
3362  * If the method/message is "static" or the cursor does not point to a
3363  * method/message, it will return zero.
3364  */
3365 CINDEX_LINKAGE int clang_Cursor_isDynamicCall(CXCursor C);
3366 
3367 /**
3368  * \brief Given a cursor pointing to an ObjC message, returns the CXType of the
3369  * receiver.
3370  */
3371 CINDEX_LINKAGE CXType clang_Cursor_getReceiverType(CXCursor C);
3372 
3373 /**
3374  * \brief Property attributes for a \c CXCursor_ObjCPropertyDecl.
3375  */
3376 typedef enum {
3377   CXObjCPropertyAttr_noattr    = 0x00,
3378   CXObjCPropertyAttr_readonly  = 0x01,
3379   CXObjCPropertyAttr_getter    = 0x02,
3380   CXObjCPropertyAttr_assign    = 0x04,
3381   CXObjCPropertyAttr_readwrite = 0x08,
3382   CXObjCPropertyAttr_retain    = 0x10,
3383   CXObjCPropertyAttr_copy      = 0x20,
3384   CXObjCPropertyAttr_nonatomic = 0x40,
3385   CXObjCPropertyAttr_setter    = 0x80,
3386   CXObjCPropertyAttr_atomic    = 0x100,
3387   CXObjCPropertyAttr_weak      = 0x200,
3388   CXObjCPropertyAttr_strong    = 0x400,
3389   CXObjCPropertyAttr_unsafe_unretained = 0x800
3390 } CXObjCPropertyAttrKind;
3391 
3392 /**
3393  * \brief Given a cursor that represents a property declaration, return the
3394  * associated property attributes. The bits are formed from
3395  * \c CXObjCPropertyAttrKind.
3396  *
3397  * \param reserved Reserved for future use, pass 0.
3398  */
3399 CINDEX_LINKAGE unsigned clang_Cursor_getObjCPropertyAttributes(CXCursor C,
3400                                                              unsigned reserved);
3401 
3402 /**
3403  * \brief 'Qualifiers' written next to the return and parameter types in
3404  * ObjC method declarations.
3405  */
3406 typedef enum {
3407   CXObjCDeclQualifier_None = 0x0,
3408   CXObjCDeclQualifier_In = 0x1,
3409   CXObjCDeclQualifier_Inout = 0x2,
3410   CXObjCDeclQualifier_Out = 0x4,
3411   CXObjCDeclQualifier_Bycopy = 0x8,
3412   CXObjCDeclQualifier_Byref = 0x10,
3413   CXObjCDeclQualifier_Oneway = 0x20
3414 } CXObjCDeclQualifierKind;
3415 
3416 /**
3417  * \brief Given a cursor that represents an ObjC method or parameter
3418  * declaration, return the associated ObjC qualifiers for the return type or the
3419  * parameter respectively. The bits are formed from CXObjCDeclQualifierKind.
3420  */
3421 CINDEX_LINKAGE unsigned clang_Cursor_getObjCDeclQualifiers(CXCursor C);
3422 
3423 /**
3424  * \brief Given a cursor that represents an ObjC method or property declaration,
3425  * return non-zero if the declaration was affected by "@optional".
3426  * Returns zero if the cursor is not such a declaration or it is "@required".
3427  */
3428 CINDEX_LINKAGE unsigned clang_Cursor_isObjCOptional(CXCursor C);
3429 
3430 /**
3431  * \brief Returns non-zero if the given cursor is a variadic function or method.
3432  */
3433 CINDEX_LINKAGE unsigned clang_Cursor_isVariadic(CXCursor C);
3434 
3435 /**
3436  * \brief Given a cursor that represents a declaration, return the associated
3437  * comment's source range.  The range may include multiple consecutive comments
3438  * with whitespace in between.
3439  */
3440 CINDEX_LINKAGE CXSourceRange clang_Cursor_getCommentRange(CXCursor C);
3441 
3442 /**
3443  * \brief Given a cursor that represents a declaration, return the associated
3444  * comment text, including comment markers.
3445  */
3446 CINDEX_LINKAGE CXString clang_Cursor_getRawCommentText(CXCursor C);
3447 
3448 /**
3449  * \brief Given a cursor that represents a documentable entity (e.g.,
3450  * declaration), return the associated \\brief paragraph; otherwise return the
3451  * first paragraph.
3452  */
3453 CINDEX_LINKAGE CXString clang_Cursor_getBriefCommentText(CXCursor C);
3454 
3455 /**
3456  * \brief Given a cursor that represents a documentable entity (e.g.,
3457  * declaration), return the associated parsed comment as a
3458  * \c CXComment_FullComment AST node.
3459  */
3460 CINDEX_LINKAGE CXComment clang_Cursor_getParsedComment(CXCursor C);
3461 
3462 /**
3463  * @}
3464  */
3465 
3466 /**
3467  * \defgroup CINDEX_MODULE Module introspection
3468  *
3469  * The functions in this group provide access to information about modules.
3470  *
3471  * @{
3472  */
3473 
3474 typedef void *CXModule;
3475 
3476 /**
3477  * \brief Given a CXCursor_ModuleImportDecl cursor, return the associated module.
3478  */
3479 CINDEX_LINKAGE CXModule clang_Cursor_getModule(CXCursor C);
3480 
3481 /**
3482  * \param Module a module object.
3483  *
3484  * \returns the module file where the provided module object came from.
3485  */
3486 CINDEX_LINKAGE CXFile clang_Module_getASTFile(CXModule Module);
3487 
3488 /**
3489  * \param Module a module object.
3490  *
3491  * \returns the parent of a sub-module or NULL if the given module is top-level,
3492  * e.g. for 'std.vector' it will return the 'std' module.
3493  */
3494 CINDEX_LINKAGE CXModule clang_Module_getParent(CXModule Module);
3495 
3496 /**
3497  * \param Module a module object.
3498  *
3499  * \returns the name of the module, e.g. for the 'std.vector' sub-module it
3500  * will return "vector".
3501  */
3502 CINDEX_LINKAGE CXString clang_Module_getName(CXModule Module);
3503 
3504 /**
3505  * \param Module a module object.
3506  *
3507  * \returns the full name of the module, e.g. "std.vector".
3508  */
3509 CINDEX_LINKAGE CXString clang_Module_getFullName(CXModule Module);
3510 
3511 /**
3512  * \param Module a module object.
3513  *
3514  * \returns the number of top level headers associated with this module.
3515  */
3516 CINDEX_LINKAGE unsigned clang_Module_getNumTopLevelHeaders(CXTranslationUnit,
3517                                                            CXModule Module);
3518 
3519 /**
3520  * \param Module a module object.
3521  *
3522  * \param Index top level header index (zero-based).
3523  *
3524  * \returns the specified top level header associated with the module.
3525  */
3526 CINDEX_LINKAGE
3527 CXFile clang_Module_getTopLevelHeader(CXTranslationUnit,
3528                                       CXModule Module, unsigned Index);
3529 
3530 /**
3531  * @}
3532  */
3533 
3534 /**
3535  * \defgroup CINDEX_COMMENT Comment AST introspection
3536  *
3537  * The routines in this group provide access to information in the
3538  * documentation comment ASTs.
3539  *
3540  * @{
3541  */
3542 
3543 /**
3544  * \brief Describes the type of the comment AST node (\c CXComment).  A comment
3545  * node can be considered block content (e. g., paragraph), inline content
3546  * (plain text) or neither (the root AST node).
3547  */
3548 enum CXCommentKind {
3549   /**
3550    * \brief Null comment.  No AST node is constructed at the requested location
3551    * because there is no text or a syntax error.
3552    */
3553   CXComment_Null = 0,
3554 
3555   /**
3556    * \brief Plain text.  Inline content.
3557    */
3558   CXComment_Text = 1,
3559 
3560   /**
3561    * \brief A command with word-like arguments that is considered inline content.
3562    *
3563    * For example: \\c command.
3564    */
3565   CXComment_InlineCommand = 2,
3566 
3567   /**
3568    * \brief HTML start tag with attributes (name-value pairs).  Considered
3569    * inline content.
3570    *
3571    * For example:
3572    * \verbatim
3573    * <br> <br /> <a href="http://example.org/">
3574    * \endverbatim
3575    */
3576   CXComment_HTMLStartTag = 3,
3577 
3578   /**
3579    * \brief HTML end tag.  Considered inline content.
3580    *
3581    * For example:
3582    * \verbatim
3583    * </a>
3584    * \endverbatim
3585    */
3586   CXComment_HTMLEndTag = 4,
3587 
3588   /**
3589    * \brief A paragraph, contains inline comment.  The paragraph itself is
3590    * block content.
3591    */
3592   CXComment_Paragraph = 5,
3593 
3594   /**
3595    * \brief A command that has zero or more word-like arguments (number of
3596    * word-like arguments depends on command name) and a paragraph as an
3597    * argument.  Block command is block content.
3598    *
3599    * Paragraph argument is also a child of the block command.
3600    *
3601    * For example: \\brief has 0 word-like arguments and a paragraph argument.
3602    *
3603    * AST nodes of special kinds that parser knows about (e. g., \\param
3604    * command) have their own node kinds.
3605    */
3606   CXComment_BlockCommand = 6,
3607 
3608   /**
3609    * \brief A \\param or \\arg command that describes the function parameter
3610    * (name, passing direction, description).
3611    *
3612    * For example: \\param [in] ParamName description.
3613    */
3614   CXComment_ParamCommand = 7,
3615 
3616   /**
3617    * \brief A \\tparam command that describes a template parameter (name and
3618    * description).
3619    *
3620    * For example: \\tparam T description.
3621    */
3622   CXComment_TParamCommand = 8,
3623 
3624   /**
3625    * \brief A verbatim block command (e. g., preformatted code).  Verbatim
3626    * block has an opening and a closing command and contains multiple lines of
3627    * text (\c CXComment_VerbatimBlockLine child nodes).
3628    *
3629    * For example:
3630    * \\verbatim
3631    * aaa
3632    * \\endverbatim
3633    */
3634   CXComment_VerbatimBlockCommand = 9,
3635 
3636   /**
3637    * \brief A line of text that is contained within a
3638    * CXComment_VerbatimBlockCommand node.
3639    */
3640   CXComment_VerbatimBlockLine = 10,
3641 
3642   /**
3643    * \brief A verbatim line command.  Verbatim line has an opening command,
3644    * a single line of text (up to the newline after the opening command) and
3645    * has no closing command.
3646    */
3647   CXComment_VerbatimLine = 11,
3648 
3649   /**
3650    * \brief A full comment attached to a declaration, contains block content.
3651    */
3652   CXComment_FullComment = 12
3653 };
3654 
3655 /**
3656  * \brief The most appropriate rendering mode for an inline command, chosen on
3657  * command semantics in Doxygen.
3658  */
3659 enum CXCommentInlineCommandRenderKind {
3660   /**
3661    * \brief Command argument should be rendered in a normal font.
3662    */
3663   CXCommentInlineCommandRenderKind_Normal,
3664 
3665   /**
3666    * \brief Command argument should be rendered in a bold font.
3667    */
3668   CXCommentInlineCommandRenderKind_Bold,
3669 
3670   /**
3671    * \brief Command argument should be rendered in a monospaced font.
3672    */
3673   CXCommentInlineCommandRenderKind_Monospaced,
3674 
3675   /**
3676    * \brief Command argument should be rendered emphasized (typically italic
3677    * font).
3678    */
3679   CXCommentInlineCommandRenderKind_Emphasized
3680 };
3681 
3682 /**
3683  * \brief Describes parameter passing direction for \\param or \\arg command.
3684  */
3685 enum CXCommentParamPassDirection {
3686   /**
3687    * \brief The parameter is an input parameter.
3688    */
3689   CXCommentParamPassDirection_In,
3690 
3691   /**
3692    * \brief The parameter is an output parameter.
3693    */
3694   CXCommentParamPassDirection_Out,
3695 
3696   /**
3697    * \brief The parameter is an input and output parameter.
3698    */
3699   CXCommentParamPassDirection_InOut
3700 };
3701 
3702 /**
3703  * \param Comment AST node of any kind.
3704  *
3705  * \returns the type of the AST node.
3706  */
3707 CINDEX_LINKAGE enum CXCommentKind clang_Comment_getKind(CXComment Comment);
3708 
3709 /**
3710  * \param Comment AST node of any kind.
3711  *
3712  * \returns number of children of the AST node.
3713  */
3714 CINDEX_LINKAGE unsigned clang_Comment_getNumChildren(CXComment Comment);
3715 
3716 /**
3717  * \param Comment AST node of any kind.
3718  *
3719  * \param ChildIdx child index (zero-based).
3720  *
3721  * \returns the specified child of the AST node.
3722  */
3723 CINDEX_LINKAGE
3724 CXComment clang_Comment_getChild(CXComment Comment, unsigned ChildIdx);
3725 
3726 /**
3727  * \brief A \c CXComment_Paragraph node is considered whitespace if it contains
3728  * only \c CXComment_Text nodes that are empty or whitespace.
3729  *
3730  * Other AST nodes (except \c CXComment_Paragraph and \c CXComment_Text) are
3731  * never considered whitespace.
3732  *
3733  * \returns non-zero if \c Comment is whitespace.
3734  */
3735 CINDEX_LINKAGE unsigned clang_Comment_isWhitespace(CXComment Comment);
3736 
3737 /**
3738  * \returns non-zero if \c Comment is inline content and has a newline
3739  * immediately following it in the comment text.  Newlines between paragraphs
3740  * do not count.
3741  */
3742 CINDEX_LINKAGE
3743 unsigned clang_InlineContentComment_hasTrailingNewline(CXComment Comment);
3744 
3745 /**
3746  * \param Comment a \c CXComment_Text AST node.
3747  *
3748  * \returns text contained in the AST node.
3749  */
3750 CINDEX_LINKAGE CXString clang_TextComment_getText(CXComment Comment);
3751 
3752 /**
3753  * \param Comment a \c CXComment_InlineCommand AST node.
3754  *
3755  * \returns name of the inline command.
3756  */
3757 CINDEX_LINKAGE
3758 CXString clang_InlineCommandComment_getCommandName(CXComment Comment);
3759 
3760 /**
3761  * \param Comment a \c CXComment_InlineCommand AST node.
3762  *
3763  * \returns the most appropriate rendering mode, chosen on command
3764  * semantics in Doxygen.
3765  */
3766 CINDEX_LINKAGE enum CXCommentInlineCommandRenderKind
3767 clang_InlineCommandComment_getRenderKind(CXComment Comment);
3768 
3769 /**
3770  * \param Comment a \c CXComment_InlineCommand AST node.
3771  *
3772  * \returns number of command arguments.
3773  */
3774 CINDEX_LINKAGE
3775 unsigned clang_InlineCommandComment_getNumArgs(CXComment Comment);
3776 
3777 /**
3778  * \param Comment a \c CXComment_InlineCommand AST node.
3779  *
3780  * \param ArgIdx argument index (zero-based).
3781  *
3782  * \returns text of the specified argument.
3783  */
3784 CINDEX_LINKAGE
3785 CXString clang_InlineCommandComment_getArgText(CXComment Comment,
3786                                                unsigned ArgIdx);
3787 
3788 /**
3789  * \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST
3790  * node.
3791  *
3792  * \returns HTML tag name.
3793  */
3794 CINDEX_LINKAGE CXString clang_HTMLTagComment_getTagName(CXComment Comment);
3795 
3796 /**
3797  * \param Comment a \c CXComment_HTMLStartTag AST node.
3798  *
3799  * \returns non-zero if tag is self-closing (for example, &lt;br /&gt;).
3800  */
3801 CINDEX_LINKAGE
3802 unsigned clang_HTMLStartTagComment_isSelfClosing(CXComment Comment);
3803 
3804 /**
3805  * \param Comment a \c CXComment_HTMLStartTag AST node.
3806  *
3807  * \returns number of attributes (name-value pairs) attached to the start tag.
3808  */
3809 CINDEX_LINKAGE unsigned clang_HTMLStartTag_getNumAttrs(CXComment Comment);
3810 
3811 /**
3812  * \param Comment a \c CXComment_HTMLStartTag AST node.
3813  *
3814  * \param AttrIdx attribute index (zero-based).
3815  *
3816  * \returns name of the specified attribute.
3817  */
3818 CINDEX_LINKAGE
3819 CXString clang_HTMLStartTag_getAttrName(CXComment Comment, unsigned AttrIdx);
3820 
3821 /**
3822  * \param Comment a \c CXComment_HTMLStartTag AST node.
3823  *
3824  * \param AttrIdx attribute index (zero-based).
3825  *
3826  * \returns value of the specified attribute.
3827  */
3828 CINDEX_LINKAGE
3829 CXString clang_HTMLStartTag_getAttrValue(CXComment Comment, unsigned AttrIdx);
3830 
3831 /**
3832  * \param Comment a \c CXComment_BlockCommand AST node.
3833  *
3834  * \returns name of the block command.
3835  */
3836 CINDEX_LINKAGE
3837 CXString clang_BlockCommandComment_getCommandName(CXComment Comment);
3838 
3839 /**
3840  * \param Comment a \c CXComment_BlockCommand AST node.
3841  *
3842  * \returns number of word-like arguments.
3843  */
3844 CINDEX_LINKAGE
3845 unsigned clang_BlockCommandComment_getNumArgs(CXComment Comment);
3846 
3847 /**
3848  * \param Comment a \c CXComment_BlockCommand AST node.
3849  *
3850  * \param ArgIdx argument index (zero-based).
3851  *
3852  * \returns text of the specified word-like argument.
3853  */
3854 CINDEX_LINKAGE
3855 CXString clang_BlockCommandComment_getArgText(CXComment Comment,
3856                                               unsigned ArgIdx);
3857 
3858 /**
3859  * \param Comment a \c CXComment_BlockCommand or
3860  * \c CXComment_VerbatimBlockCommand AST node.
3861  *
3862  * \returns paragraph argument of the block command.
3863  */
3864 CINDEX_LINKAGE
3865 CXComment clang_BlockCommandComment_getParagraph(CXComment Comment);
3866 
3867 /**
3868  * \param Comment a \c CXComment_ParamCommand AST node.
3869  *
3870  * \returns parameter name.
3871  */
3872 CINDEX_LINKAGE
3873 CXString clang_ParamCommandComment_getParamName(CXComment Comment);
3874 
3875 /**
3876  * \param Comment a \c CXComment_ParamCommand AST node.
3877  *
3878  * \returns non-zero if the parameter that this AST node represents was found
3879  * in the function prototype and \c clang_ParamCommandComment_getParamIndex
3880  * function will return a meaningful value.
3881  */
3882 CINDEX_LINKAGE
3883 unsigned clang_ParamCommandComment_isParamIndexValid(CXComment Comment);
3884 
3885 /**
3886  * \param Comment a \c CXComment_ParamCommand AST node.
3887  *
3888  * \returns zero-based parameter index in function prototype.
3889  */
3890 CINDEX_LINKAGE
3891 unsigned clang_ParamCommandComment_getParamIndex(CXComment Comment);
3892 
3893 /**
3894  * \param Comment a \c CXComment_ParamCommand AST node.
3895  *
3896  * \returns non-zero if parameter passing direction was specified explicitly in
3897  * the comment.
3898  */
3899 CINDEX_LINKAGE
3900 unsigned clang_ParamCommandComment_isDirectionExplicit(CXComment Comment);
3901 
3902 /**
3903  * \param Comment a \c CXComment_ParamCommand AST node.
3904  *
3905  * \returns parameter passing direction.
3906  */
3907 CINDEX_LINKAGE
3908 enum CXCommentParamPassDirection clang_ParamCommandComment_getDirection(
3909                                                             CXComment Comment);
3910 
3911 /**
3912  * \param Comment a \c CXComment_TParamCommand AST node.
3913  *
3914  * \returns template parameter name.
3915  */
3916 CINDEX_LINKAGE
3917 CXString clang_TParamCommandComment_getParamName(CXComment Comment);
3918 
3919 /**
3920  * \param Comment a \c CXComment_TParamCommand AST node.
3921  *
3922  * \returns non-zero if the parameter that this AST node represents was found
3923  * in the template parameter list and
3924  * \c clang_TParamCommandComment_getDepth and
3925  * \c clang_TParamCommandComment_getIndex functions will return a meaningful
3926  * value.
3927  */
3928 CINDEX_LINKAGE
3929 unsigned clang_TParamCommandComment_isParamPositionValid(CXComment Comment);
3930 
3931 /**
3932  * \param Comment a \c CXComment_TParamCommand AST node.
3933  *
3934  * \returns zero-based nesting depth of this parameter in the template parameter list.
3935  *
3936  * For example,
3937  * \verbatim
3938  *     template<typename C, template<typename T> class TT>
3939  *     void test(TT<int> aaa);
3940  * \endverbatim
3941  * for C and TT nesting depth is 0,
3942  * for T nesting depth is 1.
3943  */
3944 CINDEX_LINKAGE
3945 unsigned clang_TParamCommandComment_getDepth(CXComment Comment);
3946 
3947 /**
3948  * \param Comment a \c CXComment_TParamCommand AST node.
3949  *
3950  * \returns zero-based parameter index in the template parameter list at a
3951  * given nesting depth.
3952  *
3953  * For example,
3954  * \verbatim
3955  *     template<typename C, template<typename T> class TT>
3956  *     void test(TT<int> aaa);
3957  * \endverbatim
3958  * for C and TT nesting depth is 0, so we can ask for index at depth 0:
3959  * at depth 0 C's index is 0, TT's index is 1.
3960  *
3961  * For T nesting depth is 1, so we can ask for index at depth 0 and 1:
3962  * at depth 0 T's index is 1 (same as TT's),
3963  * at depth 1 T's index is 0.
3964  */
3965 CINDEX_LINKAGE
3966 unsigned clang_TParamCommandComment_getIndex(CXComment Comment, unsigned Depth);
3967 
3968 /**
3969  * \param Comment a \c CXComment_VerbatimBlockLine AST node.
3970  *
3971  * \returns text contained in the AST node.
3972  */
3973 CINDEX_LINKAGE
3974 CXString clang_VerbatimBlockLineComment_getText(CXComment Comment);
3975 
3976 /**
3977  * \param Comment a \c CXComment_VerbatimLine AST node.
3978  *
3979  * \returns text contained in the AST node.
3980  */
3981 CINDEX_LINKAGE CXString clang_VerbatimLineComment_getText(CXComment Comment);
3982 
3983 /**
3984  * \brief Convert an HTML tag AST node to string.
3985  *
3986  * \param Comment a \c CXComment_HTMLStartTag or \c CXComment_HTMLEndTag AST
3987  * node.
3988  *
3989  * \returns string containing an HTML tag.
3990  */
3991 CINDEX_LINKAGE CXString clang_HTMLTagComment_getAsString(CXComment Comment);
3992 
3993 /**
3994  * \brief Convert a given full parsed comment to an HTML fragment.
3995  *
3996  * Specific details of HTML layout are subject to change.  Don't try to parse
3997  * this HTML back into an AST, use other APIs instead.
3998  *
3999  * Currently the following CSS classes are used:
4000  * \li "para-brief" for \\brief paragraph and equivalent commands;
4001  * \li "para-returns" for \\returns paragraph and equivalent commands;
4002  * \li "word-returns" for the "Returns" word in \\returns paragraph.
4003  *
4004  * Function argument documentation is rendered as a \<dl\> list with arguments
4005  * sorted in function prototype order.  CSS classes used:
4006  * \li "param-name-index-NUMBER" for parameter name (\<dt\>);
4007  * \li "param-descr-index-NUMBER" for parameter description (\<dd\>);
4008  * \li "param-name-index-invalid" and "param-descr-index-invalid" are used if
4009  * parameter index is invalid.
4010  *
4011  * Template parameter documentation is rendered as a \<dl\> list with
4012  * parameters sorted in template parameter list order.  CSS classes used:
4013  * \li "tparam-name-index-NUMBER" for parameter name (\<dt\>);
4014  * \li "tparam-descr-index-NUMBER" for parameter description (\<dd\>);
4015  * \li "tparam-name-index-other" and "tparam-descr-index-other" are used for
4016  * names inside template template parameters;
4017  * \li "tparam-name-index-invalid" and "tparam-descr-index-invalid" are used if
4018  * parameter position is invalid.
4019  *
4020  * \param Comment a \c CXComment_FullComment AST node.
4021  *
4022  * \returns string containing an HTML fragment.
4023  */
4024 CINDEX_LINKAGE CXString clang_FullComment_getAsHTML(CXComment Comment);
4025 
4026 /**
4027  * \brief Convert a given full parsed comment to an XML document.
4028  *
4029  * A Relax NG schema for the XML can be found in comment-xml-schema.rng file
4030  * inside clang source tree.
4031  *
4032  * \param Comment a \c CXComment_FullComment AST node.
4033  *
4034  * \returns string containing an XML document.
4035  */
4036 CINDEX_LINKAGE CXString clang_FullComment_getAsXML(CXComment Comment);
4037 
4038 /**
4039  * @}
4040  */
4041 
4042 /**
4043  * \defgroup CINDEX_CPP C++ AST introspection
4044  *
4045  * The routines in this group provide access information in the ASTs specific
4046  * to C++ language features.
4047  *
4048  * @{
4049  */
4050 
4051 /**
4052  * \brief Determine if a C++ member function or member function template is
4053  * pure virtual.
4054  */
4055 CINDEX_LINKAGE unsigned clang_CXXMethod_isPureVirtual(CXCursor C);
4056 
4057 /**
4058  * \brief Determine if a C++ member function or member function template is
4059  * declared 'static'.
4060  */
4061 CINDEX_LINKAGE unsigned clang_CXXMethod_isStatic(CXCursor C);
4062 
4063 /**
4064  * \brief Determine if a C++ member function or member function template is
4065  * explicitly declared 'virtual' or if it overrides a virtual method from
4066  * one of the base classes.
4067  */
4068 CINDEX_LINKAGE unsigned clang_CXXMethod_isVirtual(CXCursor C);
4069 
4070 /**
4071  * \brief Given a cursor that represents a template, determine
4072  * the cursor kind of the specializations would be generated by instantiating
4073  * the template.
4074  *
4075  * This routine can be used to determine what flavor of function template,
4076  * class template, or class template partial specialization is stored in the
4077  * cursor. For example, it can describe whether a class template cursor is
4078  * declared with "struct", "class" or "union".
4079  *
4080  * \param C The cursor to query. This cursor should represent a template
4081  * declaration.
4082  *
4083  * \returns The cursor kind of the specializations that would be generated
4084  * by instantiating the template \p C. If \p C is not a template, returns
4085  * \c CXCursor_NoDeclFound.
4086  */
4087 CINDEX_LINKAGE enum CXCursorKind clang_getTemplateCursorKind(CXCursor C);
4088 
4089 /**
4090  * \brief Given a cursor that may represent a specialization or instantiation
4091  * of a template, retrieve the cursor that represents the template that it
4092  * specializes or from which it was instantiated.
4093  *
4094  * This routine determines the template involved both for explicit
4095  * specializations of templates and for implicit instantiations of the template,
4096  * both of which are referred to as "specializations". For a class template
4097  * specialization (e.g., \c std::vector<bool>), this routine will return
4098  * either the primary template (\c std::vector) or, if the specialization was
4099  * instantiated from a class template partial specialization, the class template
4100  * partial specialization. For a class template partial specialization and a
4101  * function template specialization (including instantiations), this
4102  * this routine will return the specialized template.
4103  *
4104  * For members of a class template (e.g., member functions, member classes, or
4105  * static data members), returns the specialized or instantiated member.
4106  * Although not strictly "templates" in the C++ language, members of class
4107  * templates have the same notions of specializations and instantiations that
4108  * templates do, so this routine treats them similarly.
4109  *
4110  * \param C A cursor that may be a specialization of a template or a member
4111  * of a template.
4112  *
4113  * \returns If the given cursor is a specialization or instantiation of a
4114  * template or a member thereof, the template or member that it specializes or
4115  * from which it was instantiated. Otherwise, returns a NULL cursor.
4116  */
4117 CINDEX_LINKAGE CXCursor clang_getSpecializedCursorTemplate(CXCursor C);
4118 
4119 /**
4120  * \brief Given a cursor that references something else, return the source range
4121  * covering that reference.
4122  *
4123  * \param C A cursor pointing to a member reference, a declaration reference, or
4124  * an operator call.
4125  * \param NameFlags A bitset with three independent flags:
4126  * CXNameRange_WantQualifier, CXNameRange_WantTemplateArgs, and
4127  * CXNameRange_WantSinglePiece.
4128  * \param PieceIndex For contiguous names or when passing the flag
4129  * CXNameRange_WantSinglePiece, only one piece with index 0 is
4130  * available. When the CXNameRange_WantSinglePiece flag is not passed for a
4131  * non-contiguous names, this index can be used to retrieve the individual
4132  * pieces of the name. See also CXNameRange_WantSinglePiece.
4133  *
4134  * \returns The piece of the name pointed to by the given cursor. If there is no
4135  * name, or if the PieceIndex is out-of-range, a null-cursor will be returned.
4136  */
4137 CINDEX_LINKAGE CXSourceRange clang_getCursorReferenceNameRange(CXCursor C,
4138                                                 unsigned NameFlags,
4139                                                 unsigned PieceIndex);
4140 
4141 enum CXNameRefFlags {
4142   /**
4143    * \brief Include the nested-name-specifier, e.g. Foo:: in x.Foo::y, in the
4144    * range.
4145    */
4146   CXNameRange_WantQualifier = 0x1,
4147 
4148   /**
4149    * \brief Include the explicit template arguments, e.g. \<int> in x.f<int>,
4150    * in the range.
4151    */
4152   CXNameRange_WantTemplateArgs = 0x2,
4153 
4154   /**
4155    * \brief If the name is non-contiguous, return the full spanning range.
4156    *
4157    * Non-contiguous names occur in Objective-C when a selector with two or more
4158    * parameters is used, or in C++ when using an operator:
4159    * \code
4160    * [object doSomething:here withValue:there]; // ObjC
4161    * return some_vector[1]; // C++
4162    * \endcode
4163    */
4164   CXNameRange_WantSinglePiece = 0x4
4165 };
4166 
4167 /**
4168  * @}
4169  */
4170 
4171 /**
4172  * \defgroup CINDEX_LEX Token extraction and manipulation
4173  *
4174  * The routines in this group provide access to the tokens within a
4175  * translation unit, along with a semantic mapping of those tokens to
4176  * their corresponding cursors.
4177  *
4178  * @{
4179  */
4180 
4181 /**
4182  * \brief Describes a kind of token.
4183  */
4184 typedef enum CXTokenKind {
4185   /**
4186    * \brief A token that contains some kind of punctuation.
4187    */
4188   CXToken_Punctuation,
4189 
4190   /**
4191    * \brief A language keyword.
4192    */
4193   CXToken_Keyword,
4194 
4195   /**
4196    * \brief An identifier (that is not a keyword).
4197    */
4198   CXToken_Identifier,
4199 
4200   /**
4201    * \brief A numeric, string, or character literal.
4202    */
4203   CXToken_Literal,
4204 
4205   /**
4206    * \brief A comment.
4207    */
4208   CXToken_Comment
4209 } CXTokenKind;
4210 
4211 /**
4212  * \brief Describes a single preprocessing token.
4213  */
4214 typedef struct {
4215   unsigned int_data[4];
4216   void *ptr_data;
4217 } CXToken;
4218 
4219 /**
4220  * \brief Determine the kind of the given token.
4221  */
4222 CINDEX_LINKAGE CXTokenKind clang_getTokenKind(CXToken);
4223 
4224 /**
4225  * \brief Determine the spelling of the given token.
4226  *
4227  * The spelling of a token is the textual representation of that token, e.g.,
4228  * the text of an identifier or keyword.
4229  */
4230 CINDEX_LINKAGE CXString clang_getTokenSpelling(CXTranslationUnit, CXToken);
4231 
4232 /**
4233  * \brief Retrieve the source location of the given token.
4234  */
4235 CINDEX_LINKAGE CXSourceLocation clang_getTokenLocation(CXTranslationUnit,
4236                                                        CXToken);
4237 
4238 /**
4239  * \brief Retrieve a source range that covers the given token.
4240  */
4241 CINDEX_LINKAGE CXSourceRange clang_getTokenExtent(CXTranslationUnit, CXToken);
4242 
4243 /**
4244  * \brief Tokenize the source code described by the given range into raw
4245  * lexical tokens.
4246  *
4247  * \param TU the translation unit whose text is being tokenized.
4248  *
4249  * \param Range the source range in which text should be tokenized. All of the
4250  * tokens produced by tokenization will fall within this source range,
4251  *
4252  * \param Tokens this pointer will be set to point to the array of tokens
4253  * that occur within the given source range. The returned pointer must be
4254  * freed with clang_disposeTokens() before the translation unit is destroyed.
4255  *
4256  * \param NumTokens will be set to the number of tokens in the \c *Tokens
4257  * array.
4258  *
4259  */
4260 CINDEX_LINKAGE void clang_tokenize(CXTranslationUnit TU, CXSourceRange Range,
4261                                    CXToken **Tokens, unsigned *NumTokens);
4262 
4263 /**
4264  * \brief Annotate the given set of tokens by providing cursors for each token
4265  * that can be mapped to a specific entity within the abstract syntax tree.
4266  *
4267  * This token-annotation routine is equivalent to invoking
4268  * clang_getCursor() for the source locations of each of the
4269  * tokens. The cursors provided are filtered, so that only those
4270  * cursors that have a direct correspondence to the token are
4271  * accepted. For example, given a function call \c f(x),
4272  * clang_getCursor() would provide the following cursors:
4273  *
4274  *   * when the cursor is over the 'f', a DeclRefExpr cursor referring to 'f'.
4275  *   * when the cursor is over the '(' or the ')', a CallExpr referring to 'f'.
4276  *   * when the cursor is over the 'x', a DeclRefExpr cursor referring to 'x'.
4277  *
4278  * Only the first and last of these cursors will occur within the
4279  * annotate, since the tokens "f" and "x' directly refer to a function
4280  * and a variable, respectively, but the parentheses are just a small
4281  * part of the full syntax of the function call expression, which is
4282  * not provided as an annotation.
4283  *
4284  * \param TU the translation unit that owns the given tokens.
4285  *
4286  * \param Tokens the set of tokens to annotate.
4287  *
4288  * \param NumTokens the number of tokens in \p Tokens.
4289  *
4290  * \param Cursors an array of \p NumTokens cursors, whose contents will be
4291  * replaced with the cursors corresponding to each token.
4292  */
4293 CINDEX_LINKAGE void clang_annotateTokens(CXTranslationUnit TU,
4294                                          CXToken *Tokens, unsigned NumTokens,
4295                                          CXCursor *Cursors);
4296 
4297 /**
4298  * \brief Free the given set of tokens.
4299  */
4300 CINDEX_LINKAGE void clang_disposeTokens(CXTranslationUnit TU,
4301                                         CXToken *Tokens, unsigned NumTokens);
4302 
4303 /**
4304  * @}
4305  */
4306 
4307 /**
4308  * \defgroup CINDEX_DEBUG Debugging facilities
4309  *
4310  * These routines are used for testing and debugging, only, and should not
4311  * be relied upon.
4312  *
4313  * @{
4314  */
4315 
4316 /* for debug/testing */
4317 CINDEX_LINKAGE CXString clang_getCursorKindSpelling(enum CXCursorKind Kind);
4318 CINDEX_LINKAGE void clang_getDefinitionSpellingAndExtent(CXCursor,
4319                                           const char **startBuf,
4320                                           const char **endBuf,
4321                                           unsigned *startLine,
4322                                           unsigned *startColumn,
4323                                           unsigned *endLine,
4324                                           unsigned *endColumn);
4325 CINDEX_LINKAGE void clang_enableStackTraces(void);
4326 CINDEX_LINKAGE void clang_executeOnThread(void (*fn)(void*), void *user_data,
4327                                           unsigned stack_size);
4328 
4329 /**
4330  * @}
4331  */
4332 
4333 /**
4334  * \defgroup CINDEX_CODE_COMPLET Code completion
4335  *
4336  * Code completion involves taking an (incomplete) source file, along with
4337  * knowledge of where the user is actively editing that file, and suggesting
4338  * syntactically- and semantically-valid constructs that the user might want to
4339  * use at that particular point in the source code. These data structures and
4340  * routines provide support for code completion.
4341  *
4342  * @{
4343  */
4344 
4345 /**
4346  * \brief A semantic string that describes a code-completion result.
4347  *
4348  * A semantic string that describes the formatting of a code-completion
4349  * result as a single "template" of text that should be inserted into the
4350  * source buffer when a particular code-completion result is selected.
4351  * Each semantic string is made up of some number of "chunks", each of which
4352  * contains some text along with a description of what that text means, e.g.,
4353  * the name of the entity being referenced, whether the text chunk is part of
4354  * the template, or whether it is a "placeholder" that the user should replace
4355  * with actual code,of a specific kind. See \c CXCompletionChunkKind for a
4356  * description of the different kinds of chunks.
4357  */
4358 typedef void *CXCompletionString;
4359 
4360 /**
4361  * \brief A single result of code completion.
4362  */
4363 typedef struct {
4364   /**
4365    * \brief The kind of entity that this completion refers to.
4366    *
4367    * The cursor kind will be a macro, keyword, or a declaration (one of the
4368    * *Decl cursor kinds), describing the entity that the completion is
4369    * referring to.
4370    *
4371    * \todo In the future, we would like to provide a full cursor, to allow
4372    * the client to extract additional information from declaration.
4373    */
4374   enum CXCursorKind CursorKind;
4375 
4376   /**
4377    * \brief The code-completion string that describes how to insert this
4378    * code-completion result into the editing buffer.
4379    */
4380   CXCompletionString CompletionString;
4381 } CXCompletionResult;
4382 
4383 /**
4384  * \brief Describes a single piece of text within a code-completion string.
4385  *
4386  * Each "chunk" within a code-completion string (\c CXCompletionString) is
4387  * either a piece of text with a specific "kind" that describes how that text
4388  * should be interpreted by the client or is another completion string.
4389  */
4390 enum CXCompletionChunkKind {
4391   /**
4392    * \brief A code-completion string that describes "optional" text that
4393    * could be a part of the template (but is not required).
4394    *
4395    * The Optional chunk is the only kind of chunk that has a code-completion
4396    * string for its representation, which is accessible via
4397    * \c clang_getCompletionChunkCompletionString(). The code-completion string
4398    * describes an additional part of the template that is completely optional.
4399    * For example, optional chunks can be used to describe the placeholders for
4400    * arguments that match up with defaulted function parameters, e.g. given:
4401    *
4402    * \code
4403    * void f(int x, float y = 3.14, double z = 2.71828);
4404    * \endcode
4405    *
4406    * The code-completion string for this function would contain:
4407    *   - a TypedText chunk for "f".
4408    *   - a LeftParen chunk for "(".
4409    *   - a Placeholder chunk for "int x"
4410    *   - an Optional chunk containing the remaining defaulted arguments, e.g.,
4411    *       - a Comma chunk for ","
4412    *       - a Placeholder chunk for "float y"
4413    *       - an Optional chunk containing the last defaulted argument:
4414    *           - a Comma chunk for ","
4415    *           - a Placeholder chunk for "double z"
4416    *   - a RightParen chunk for ")"
4417    *
4418    * There are many ways to handle Optional chunks. Two simple approaches are:
4419    *   - Completely ignore optional chunks, in which case the template for the
4420    *     function "f" would only include the first parameter ("int x").
4421    *   - Fully expand all optional chunks, in which case the template for the
4422    *     function "f" would have all of the parameters.
4423    */
4424   CXCompletionChunk_Optional,
4425   /**
4426    * \brief Text that a user would be expected to type to get this
4427    * code-completion result.
4428    *
4429    * There will be exactly one "typed text" chunk in a semantic string, which
4430    * will typically provide the spelling of a keyword or the name of a
4431    * declaration that could be used at the current code point. Clients are
4432    * expected to filter the code-completion results based on the text in this
4433    * chunk.
4434    */
4435   CXCompletionChunk_TypedText,
4436   /**
4437    * \brief Text that should be inserted as part of a code-completion result.
4438    *
4439    * A "text" chunk represents text that is part of the template to be
4440    * inserted into user code should this particular code-completion result
4441    * be selected.
4442    */
4443   CXCompletionChunk_Text,
4444   /**
4445    * \brief Placeholder text that should be replaced by the user.
4446    *
4447    * A "placeholder" chunk marks a place where the user should insert text
4448    * into the code-completion template. For example, placeholders might mark
4449    * the function parameters for a function declaration, to indicate that the
4450    * user should provide arguments for each of those parameters. The actual
4451    * text in a placeholder is a suggestion for the text to display before
4452    * the user replaces the placeholder with real code.
4453    */
4454   CXCompletionChunk_Placeholder,
4455   /**
4456    * \brief Informative text that should be displayed but never inserted as
4457    * part of the template.
4458    *
4459    * An "informative" chunk contains annotations that can be displayed to
4460    * help the user decide whether a particular code-completion result is the
4461    * right option, but which is not part of the actual template to be inserted
4462    * by code completion.
4463    */
4464   CXCompletionChunk_Informative,
4465   /**
4466    * \brief Text that describes the current parameter when code-completion is
4467    * referring to function call, message send, or template specialization.
4468    *
4469    * A "current parameter" chunk occurs when code-completion is providing
4470    * information about a parameter corresponding to the argument at the
4471    * code-completion point. For example, given a function
4472    *
4473    * \code
4474    * int add(int x, int y);
4475    * \endcode
4476    *
4477    * and the source code \c add(, where the code-completion point is after the
4478    * "(", the code-completion string will contain a "current parameter" chunk
4479    * for "int x", indicating that the current argument will initialize that
4480    * parameter. After typing further, to \c add(17, (where the code-completion
4481    * point is after the ","), the code-completion string will contain a
4482    * "current paremeter" chunk to "int y".
4483    */
4484   CXCompletionChunk_CurrentParameter,
4485   /**
4486    * \brief A left parenthesis ('('), used to initiate a function call or
4487    * signal the beginning of a function parameter list.
4488    */
4489   CXCompletionChunk_LeftParen,
4490   /**
4491    * \brief A right parenthesis (')'), used to finish a function call or
4492    * signal the end of a function parameter list.
4493    */
4494   CXCompletionChunk_RightParen,
4495   /**
4496    * \brief A left bracket ('[').
4497    */
4498   CXCompletionChunk_LeftBracket,
4499   /**
4500    * \brief A right bracket (']').
4501    */
4502   CXCompletionChunk_RightBracket,
4503   /**
4504    * \brief A left brace ('{').
4505    */
4506   CXCompletionChunk_LeftBrace,
4507   /**
4508    * \brief A right brace ('}').
4509    */
4510   CXCompletionChunk_RightBrace,
4511   /**
4512    * \brief A left angle bracket ('<').
4513    */
4514   CXCompletionChunk_LeftAngle,
4515   /**
4516    * \brief A right angle bracket ('>').
4517    */
4518   CXCompletionChunk_RightAngle,
4519   /**
4520    * \brief A comma separator (',').
4521    */
4522   CXCompletionChunk_Comma,
4523   /**
4524    * \brief Text that specifies the result type of a given result.
4525    *
4526    * This special kind of informative chunk is not meant to be inserted into
4527    * the text buffer. Rather, it is meant to illustrate the type that an
4528    * expression using the given completion string would have.
4529    */
4530   CXCompletionChunk_ResultType,
4531   /**
4532    * \brief A colon (':').
4533    */
4534   CXCompletionChunk_Colon,
4535   /**
4536    * \brief A semicolon (';').
4537    */
4538   CXCompletionChunk_SemiColon,
4539   /**
4540    * \brief An '=' sign.
4541    */
4542   CXCompletionChunk_Equal,
4543   /**
4544    * Horizontal space (' ').
4545    */
4546   CXCompletionChunk_HorizontalSpace,
4547   /**
4548    * Vertical space ('\n'), after which it is generally a good idea to
4549    * perform indentation.
4550    */
4551   CXCompletionChunk_VerticalSpace
4552 };
4553 
4554 /**
4555  * \brief Determine the kind of a particular chunk within a completion string.
4556  *
4557  * \param completion_string the completion string to query.
4558  *
4559  * \param chunk_number the 0-based index of the chunk in the completion string.
4560  *
4561  * \returns the kind of the chunk at the index \c chunk_number.
4562  */
4563 CINDEX_LINKAGE enum CXCompletionChunkKind
4564 clang_getCompletionChunkKind(CXCompletionString completion_string,
4565                              unsigned chunk_number);
4566 
4567 /**
4568  * \brief Retrieve the text associated with a particular chunk within a
4569  * completion string.
4570  *
4571  * \param completion_string the completion string to query.
4572  *
4573  * \param chunk_number the 0-based index of the chunk in the completion string.
4574  *
4575  * \returns the text associated with the chunk at index \c chunk_number.
4576  */
4577 CINDEX_LINKAGE CXString
4578 clang_getCompletionChunkText(CXCompletionString completion_string,
4579                              unsigned chunk_number);
4580 
4581 /**
4582  * \brief Retrieve the completion string associated with a particular chunk
4583  * within a completion string.
4584  *
4585  * \param completion_string the completion string to query.
4586  *
4587  * \param chunk_number the 0-based index of the chunk in the completion string.
4588  *
4589  * \returns the completion string associated with the chunk at index
4590  * \c chunk_number.
4591  */
4592 CINDEX_LINKAGE CXCompletionString
4593 clang_getCompletionChunkCompletionString(CXCompletionString completion_string,
4594                                          unsigned chunk_number);
4595 
4596 /**
4597  * \brief Retrieve the number of chunks in the given code-completion string.
4598  */
4599 CINDEX_LINKAGE unsigned
4600 clang_getNumCompletionChunks(CXCompletionString completion_string);
4601 
4602 /**
4603  * \brief Determine the priority of this code completion.
4604  *
4605  * The priority of a code completion indicates how likely it is that this
4606  * particular completion is the completion that the user will select. The
4607  * priority is selected by various internal heuristics.
4608  *
4609  * \param completion_string The completion string to query.
4610  *
4611  * \returns The priority of this completion string. Smaller values indicate
4612  * higher-priority (more likely) completions.
4613  */
4614 CINDEX_LINKAGE unsigned
4615 clang_getCompletionPriority(CXCompletionString completion_string);
4616 
4617 /**
4618  * \brief Determine the availability of the entity that this code-completion
4619  * string refers to.
4620  *
4621  * \param completion_string The completion string to query.
4622  *
4623  * \returns The availability of the completion string.
4624  */
4625 CINDEX_LINKAGE enum CXAvailabilityKind
4626 clang_getCompletionAvailability(CXCompletionString completion_string);
4627 
4628 /**
4629  * \brief Retrieve the number of annotations associated with the given
4630  * completion string.
4631  *
4632  * \param completion_string the completion string to query.
4633  *
4634  * \returns the number of annotations associated with the given completion
4635  * string.
4636  */
4637 CINDEX_LINKAGE unsigned
4638 clang_getCompletionNumAnnotations(CXCompletionString completion_string);
4639 
4640 /**
4641  * \brief Retrieve the annotation associated with the given completion string.
4642  *
4643  * \param completion_string the completion string to query.
4644  *
4645  * \param annotation_number the 0-based index of the annotation of the
4646  * completion string.
4647  *
4648  * \returns annotation string associated with the completion at index
4649  * \c annotation_number, or a NULL string if that annotation is not available.
4650  */
4651 CINDEX_LINKAGE CXString
4652 clang_getCompletionAnnotation(CXCompletionString completion_string,
4653                               unsigned annotation_number);
4654 
4655 /**
4656  * \brief Retrieve the parent context of the given completion string.
4657  *
4658  * The parent context of a completion string is the semantic parent of
4659  * the declaration (if any) that the code completion represents. For example,
4660  * a code completion for an Objective-C method would have the method's class
4661  * or protocol as its context.
4662  *
4663  * \param completion_string The code completion string whose parent is
4664  * being queried.
4665  *
4666  * \param kind DEPRECATED: always set to CXCursor_NotImplemented if non-NULL.
4667  *
4668  * \returns The name of the completion parent, e.g., "NSObject" if
4669  * the completion string represents a method in the NSObject class.
4670  */
4671 CINDEX_LINKAGE CXString
4672 clang_getCompletionParent(CXCompletionString completion_string,
4673                           enum CXCursorKind *kind);
4674 
4675 /**
4676  * \brief Retrieve the brief documentation comment attached to the declaration
4677  * that corresponds to the given completion string.
4678  */
4679 CINDEX_LINKAGE CXString
4680 clang_getCompletionBriefComment(CXCompletionString completion_string);
4681 
4682 /**
4683  * \brief Retrieve a completion string for an arbitrary declaration or macro
4684  * definition cursor.
4685  *
4686  * \param cursor The cursor to query.
4687  *
4688  * \returns A non-context-sensitive completion string for declaration and macro
4689  * definition cursors, or NULL for other kinds of cursors.
4690  */
4691 CINDEX_LINKAGE CXCompletionString
4692 clang_getCursorCompletionString(CXCursor cursor);
4693 
4694 /**
4695  * \brief Contains the results of code-completion.
4696  *
4697  * This data structure contains the results of code completion, as
4698  * produced by \c clang_codeCompleteAt(). Its contents must be freed by
4699  * \c clang_disposeCodeCompleteResults.
4700  */
4701 typedef struct {
4702   /**
4703    * \brief The code-completion results.
4704    */
4705   CXCompletionResult *Results;
4706 
4707   /**
4708    * \brief The number of code-completion results stored in the
4709    * \c Results array.
4710    */
4711   unsigned NumResults;
4712 } CXCodeCompleteResults;
4713 
4714 /**
4715  * \brief Flags that can be passed to \c clang_codeCompleteAt() to
4716  * modify its behavior.
4717  *
4718  * The enumerators in this enumeration can be bitwise-OR'd together to
4719  * provide multiple options to \c clang_codeCompleteAt().
4720  */
4721 enum CXCodeComplete_Flags {
4722   /**
4723    * \brief Whether to include macros within the set of code
4724    * completions returned.
4725    */
4726   CXCodeComplete_IncludeMacros = 0x01,
4727 
4728   /**
4729    * \brief Whether to include code patterns for language constructs
4730    * within the set of code completions, e.g., for loops.
4731    */
4732   CXCodeComplete_IncludeCodePatterns = 0x02,
4733 
4734   /**
4735    * \brief Whether to include brief documentation within the set of code
4736    * completions returned.
4737    */
4738   CXCodeComplete_IncludeBriefComments = 0x04
4739 };
4740 
4741 /**
4742  * \brief Bits that represent the context under which completion is occurring.
4743  *
4744  * The enumerators in this enumeration may be bitwise-OR'd together if multiple
4745  * contexts are occurring simultaneously.
4746  */
4747 enum CXCompletionContext {
4748   /**
4749    * \brief The context for completions is unexposed, as only Clang results
4750    * should be included. (This is equivalent to having no context bits set.)
4751    */
4752   CXCompletionContext_Unexposed = 0,
4753 
4754   /**
4755    * \brief Completions for any possible type should be included in the results.
4756    */
4757   CXCompletionContext_AnyType = 1 << 0,
4758 
4759   /**
4760    * \brief Completions for any possible value (variables, function calls, etc.)
4761    * should be included in the results.
4762    */
4763   CXCompletionContext_AnyValue = 1 << 1,
4764   /**
4765    * \brief Completions for values that resolve to an Objective-C object should
4766    * be included in the results.
4767    */
4768   CXCompletionContext_ObjCObjectValue = 1 << 2,
4769   /**
4770    * \brief Completions for values that resolve to an Objective-C selector
4771    * should be included in the results.
4772    */
4773   CXCompletionContext_ObjCSelectorValue = 1 << 3,
4774   /**
4775    * \brief Completions for values that resolve to a C++ class type should be
4776    * included in the results.
4777    */
4778   CXCompletionContext_CXXClassTypeValue = 1 << 4,
4779 
4780   /**
4781    * \brief Completions for fields of the member being accessed using the dot
4782    * operator should be included in the results.
4783    */
4784   CXCompletionContext_DotMemberAccess = 1 << 5,
4785   /**
4786    * \brief Completions for fields of the member being accessed using the arrow
4787    * operator should be included in the results.
4788    */
4789   CXCompletionContext_ArrowMemberAccess = 1 << 6,
4790   /**
4791    * \brief Completions for properties of the Objective-C object being accessed
4792    * using the dot operator should be included in the results.
4793    */
4794   CXCompletionContext_ObjCPropertyAccess = 1 << 7,
4795 
4796   /**
4797    * \brief Completions for enum tags should be included in the results.
4798    */
4799   CXCompletionContext_EnumTag = 1 << 8,
4800   /**
4801    * \brief Completions for union tags should be included in the results.
4802    */
4803   CXCompletionContext_UnionTag = 1 << 9,
4804   /**
4805    * \brief Completions for struct tags should be included in the results.
4806    */
4807   CXCompletionContext_StructTag = 1 << 10,
4808 
4809   /**
4810    * \brief Completions for C++ class names should be included in the results.
4811    */
4812   CXCompletionContext_ClassTag = 1 << 11,
4813   /**
4814    * \brief Completions for C++ namespaces and namespace aliases should be
4815    * included in the results.
4816    */
4817   CXCompletionContext_Namespace = 1 << 12,
4818   /**
4819    * \brief Completions for C++ nested name specifiers should be included in
4820    * the results.
4821    */
4822   CXCompletionContext_NestedNameSpecifier = 1 << 13,
4823 
4824   /**
4825    * \brief Completions for Objective-C interfaces (classes) should be included
4826    * in the results.
4827    */
4828   CXCompletionContext_ObjCInterface = 1 << 14,
4829   /**
4830    * \brief Completions for Objective-C protocols should be included in
4831    * the results.
4832    */
4833   CXCompletionContext_ObjCProtocol = 1 << 15,
4834   /**
4835    * \brief Completions for Objective-C categories should be included in
4836    * the results.
4837    */
4838   CXCompletionContext_ObjCCategory = 1 << 16,
4839   /**
4840    * \brief Completions for Objective-C instance messages should be included
4841    * in the results.
4842    */
4843   CXCompletionContext_ObjCInstanceMessage = 1 << 17,
4844   /**
4845    * \brief Completions for Objective-C class messages should be included in
4846    * the results.
4847    */
4848   CXCompletionContext_ObjCClassMessage = 1 << 18,
4849   /**
4850    * \brief Completions for Objective-C selector names should be included in
4851    * the results.
4852    */
4853   CXCompletionContext_ObjCSelectorName = 1 << 19,
4854 
4855   /**
4856    * \brief Completions for preprocessor macro names should be included in
4857    * the results.
4858    */
4859   CXCompletionContext_MacroName = 1 << 20,
4860 
4861   /**
4862    * \brief Natural language completions should be included in the results.
4863    */
4864   CXCompletionContext_NaturalLanguage = 1 << 21,
4865 
4866   /**
4867    * \brief The current context is unknown, so set all contexts.
4868    */
4869   CXCompletionContext_Unknown = ((1 << 22) - 1)
4870 };
4871 
4872 /**
4873  * \brief Returns a default set of code-completion options that can be
4874  * passed to\c clang_codeCompleteAt().
4875  */
4876 CINDEX_LINKAGE unsigned clang_defaultCodeCompleteOptions(void);
4877 
4878 /**
4879  * \brief Perform code completion at a given location in a translation unit.
4880  *
4881  * This function performs code completion at a particular file, line, and
4882  * column within source code, providing results that suggest potential
4883  * code snippets based on the context of the completion. The basic model
4884  * for code completion is that Clang will parse a complete source file,
4885  * performing syntax checking up to the location where code-completion has
4886  * been requested. At that point, a special code-completion token is passed
4887  * to the parser, which recognizes this token and determines, based on the
4888  * current location in the C/Objective-C/C++ grammar and the state of
4889  * semantic analysis, what completions to provide. These completions are
4890  * returned via a new \c CXCodeCompleteResults structure.
4891  *
4892  * Code completion itself is meant to be triggered by the client when the
4893  * user types punctuation characters or whitespace, at which point the
4894  * code-completion location will coincide with the cursor. For example, if \c p
4895  * is a pointer, code-completion might be triggered after the "-" and then
4896  * after the ">" in \c p->. When the code-completion location is afer the ">",
4897  * the completion results will provide, e.g., the members of the struct that
4898  * "p" points to. The client is responsible for placing the cursor at the
4899  * beginning of the token currently being typed, then filtering the results
4900  * based on the contents of the token. For example, when code-completing for
4901  * the expression \c p->get, the client should provide the location just after
4902  * the ">" (e.g., pointing at the "g") to this code-completion hook. Then, the
4903  * client can filter the results based on the current token text ("get"), only
4904  * showing those results that start with "get". The intent of this interface
4905  * is to separate the relatively high-latency acquisition of code-completion
4906  * results from the filtering of results on a per-character basis, which must
4907  * have a lower latency.
4908  *
4909  * \param TU The translation unit in which code-completion should
4910  * occur. The source files for this translation unit need not be
4911  * completely up-to-date (and the contents of those source files may
4912  * be overridden via \p unsaved_files). Cursors referring into the
4913  * translation unit may be invalidated by this invocation.
4914  *
4915  * \param complete_filename The name of the source file where code
4916  * completion should be performed. This filename may be any file
4917  * included in the translation unit.
4918  *
4919  * \param complete_line The line at which code-completion should occur.
4920  *
4921  * \param complete_column The column at which code-completion should occur.
4922  * Note that the column should point just after the syntactic construct that
4923  * initiated code completion, and not in the middle of a lexical token.
4924  *
4925  * \param unsaved_files the Tiles that have not yet been saved to disk
4926  * but may be required for parsing or code completion, including the
4927  * contents of those files.  The contents and name of these files (as
4928  * specified by CXUnsavedFile) are copied when necessary, so the
4929  * client only needs to guarantee their validity until the call to
4930  * this function returns.
4931  *
4932  * \param num_unsaved_files The number of unsaved file entries in \p
4933  * unsaved_files.
4934  *
4935  * \param options Extra options that control the behavior of code
4936  * completion, expressed as a bitwise OR of the enumerators of the
4937  * CXCodeComplete_Flags enumeration. The
4938  * \c clang_defaultCodeCompleteOptions() function returns a default set
4939  * of code-completion options.
4940  *
4941  * \returns If successful, a new \c CXCodeCompleteResults structure
4942  * containing code-completion results, which should eventually be
4943  * freed with \c clang_disposeCodeCompleteResults(). If code
4944  * completion fails, returns NULL.
4945  */
4946 CINDEX_LINKAGE
4947 CXCodeCompleteResults *clang_codeCompleteAt(CXTranslationUnit TU,
4948                                             const char *complete_filename,
4949                                             unsigned complete_line,
4950                                             unsigned complete_column,
4951                                             struct CXUnsavedFile *unsaved_files,
4952                                             unsigned num_unsaved_files,
4953                                             unsigned options);
4954 
4955 /**
4956  * \brief Sort the code-completion results in case-insensitive alphabetical
4957  * order.
4958  *
4959  * \param Results The set of results to sort.
4960  * \param NumResults The number of results in \p Results.
4961  */
4962 CINDEX_LINKAGE
4963 void clang_sortCodeCompletionResults(CXCompletionResult *Results,
4964                                      unsigned NumResults);
4965 
4966 /**
4967  * \brief Free the given set of code-completion results.
4968  */
4969 CINDEX_LINKAGE
4970 void clang_disposeCodeCompleteResults(CXCodeCompleteResults *Results);
4971 
4972 /**
4973  * \brief Determine the number of diagnostics produced prior to the
4974  * location where code completion was performed.
4975  */
4976 CINDEX_LINKAGE
4977 unsigned clang_codeCompleteGetNumDiagnostics(CXCodeCompleteResults *Results);
4978 
4979 /**
4980  * \brief Retrieve a diagnostic associated with the given code completion.
4981  *
4982  * \param Results the code completion results to query.
4983  * \param Index the zero-based diagnostic number to retrieve.
4984  *
4985  * \returns the requested diagnostic. This diagnostic must be freed
4986  * via a call to \c clang_disposeDiagnostic().
4987  */
4988 CINDEX_LINKAGE
4989 CXDiagnostic clang_codeCompleteGetDiagnostic(CXCodeCompleteResults *Results,
4990                                              unsigned Index);
4991 
4992 /**
4993  * \brief Determines what compeltions are appropriate for the context
4994  * the given code completion.
4995  *
4996  * \param Results the code completion results to query
4997  *
4998  * \returns the kinds of completions that are appropriate for use
4999  * along with the given code completion results.
5000  */
5001 CINDEX_LINKAGE
5002 unsigned long long clang_codeCompleteGetContexts(
5003                                                 CXCodeCompleteResults *Results);
5004 
5005 /**
5006  * \brief Returns the cursor kind for the container for the current code
5007  * completion context. The container is only guaranteed to be set for
5008  * contexts where a container exists (i.e. member accesses or Objective-C
5009  * message sends); if there is not a container, this function will return
5010  * CXCursor_InvalidCode.
5011  *
5012  * \param Results the code completion results to query
5013  *
5014  * \param IsIncomplete on return, this value will be false if Clang has complete
5015  * information about the container. If Clang does not have complete
5016  * information, this value will be true.
5017  *
5018  * \returns the container kind, or CXCursor_InvalidCode if there is not a
5019  * container
5020  */
5021 CINDEX_LINKAGE
5022 enum CXCursorKind clang_codeCompleteGetContainerKind(
5023                                                  CXCodeCompleteResults *Results,
5024                                                      unsigned *IsIncomplete);
5025 
5026 /**
5027  * \brief Returns the USR for the container for the current code completion
5028  * context. If there is not a container for the current context, this
5029  * function will return the empty string.
5030  *
5031  * \param Results the code completion results to query
5032  *
5033  * \returns the USR for the container
5034  */
5035 CINDEX_LINKAGE
5036 CXString clang_codeCompleteGetContainerUSR(CXCodeCompleteResults *Results);
5037 
5038 
5039 /**
5040  * \brief Returns the currently-entered selector for an Objective-C message
5041  * send, formatted like "initWithFoo:bar:". Only guaranteed to return a
5042  * non-empty string for CXCompletionContext_ObjCInstanceMessage and
5043  * CXCompletionContext_ObjCClassMessage.
5044  *
5045  * \param Results the code completion results to query
5046  *
5047  * \returns the selector (or partial selector) that has been entered thus far
5048  * for an Objective-C message send.
5049  */
5050 CINDEX_LINKAGE
5051 CXString clang_codeCompleteGetObjCSelector(CXCodeCompleteResults *Results);
5052 
5053 /**
5054  * @}
5055  */
5056 
5057 
5058 /**
5059  * \defgroup CINDEX_MISC Miscellaneous utility functions
5060  *
5061  * @{
5062  */
5063 
5064 /**
5065  * \brief Return a version string, suitable for showing to a user, but not
5066  *        intended to be parsed (the format is not guaranteed to be stable).
5067  */
5068 CINDEX_LINKAGE CXString clang_getClangVersion(void);
5069 
5070 
5071 /**
5072  * \brief Enable/disable crash recovery.
5073  *
5074  * \param isEnabled Flag to indicate if crash recovery is enabled.  A non-zero
5075  *        value enables crash recovery, while 0 disables it.
5076  */
5077 CINDEX_LINKAGE void clang_toggleCrashRecovery(unsigned isEnabled);
5078 
5079  /**
5080   * \brief Visitor invoked for each file in a translation unit
5081   *        (used with clang_getInclusions()).
5082   *
5083   * This visitor function will be invoked by clang_getInclusions() for each
5084   * file included (either at the top-level or by \#include directives) within
5085   * a translation unit.  The first argument is the file being included, and
5086   * the second and third arguments provide the inclusion stack.  The
5087   * array is sorted in order of immediate inclusion.  For example,
5088   * the first element refers to the location that included 'included_file'.
5089   */
5090 typedef void (*CXInclusionVisitor)(CXFile included_file,
5091                                    CXSourceLocation* inclusion_stack,
5092                                    unsigned include_len,
5093                                    CXClientData client_data);
5094 
5095 /**
5096  * \brief Visit the set of preprocessor inclusions in a translation unit.
5097  *   The visitor function is called with the provided data for every included
5098  *   file.  This does not include headers included by the PCH file (unless one
5099  *   is inspecting the inclusions in the PCH file itself).
5100  */
5101 CINDEX_LINKAGE void clang_getInclusions(CXTranslationUnit tu,
5102                                         CXInclusionVisitor visitor,
5103                                         CXClientData client_data);
5104 
5105 /**
5106  * @}
5107  */
5108 
5109 /** \defgroup CINDEX_REMAPPING Remapping functions
5110  *
5111  * @{
5112  */
5113 
5114 /**
5115  * \brief A remapping of original source files and their translated files.
5116  */
5117 typedef void *CXRemapping;
5118 
5119 /**
5120  * \brief Retrieve a remapping.
5121  *
5122  * \param path the path that contains metadata about remappings.
5123  *
5124  * \returns the requested remapping. This remapping must be freed
5125  * via a call to \c clang_remap_dispose(). Can return NULL if an error occurred.
5126  */
5127 CINDEX_LINKAGE CXRemapping clang_getRemappings(const char *path);
5128 
5129 /**
5130  * \brief Retrieve a remapping.
5131  *
5132  * \param filePaths pointer to an array of file paths containing remapping info.
5133  *
5134  * \param numFiles number of file paths.
5135  *
5136  * \returns the requested remapping. This remapping must be freed
5137  * via a call to \c clang_remap_dispose(). Can return NULL if an error occurred.
5138  */
5139 CINDEX_LINKAGE
5140 CXRemapping clang_getRemappingsFromFileList(const char **filePaths,
5141                                             unsigned numFiles);
5142 
5143 /**
5144  * \brief Determine the number of remappings.
5145  */
5146 CINDEX_LINKAGE unsigned clang_remap_getNumFiles(CXRemapping);
5147 
5148 /**
5149  * \brief Get the original and the associated filename from the remapping.
5150  *
5151  * \param original If non-NULL, will be set to the original filename.
5152  *
5153  * \param transformed If non-NULL, will be set to the filename that the original
5154  * is associated with.
5155  */
5156 CINDEX_LINKAGE void clang_remap_getFilenames(CXRemapping, unsigned index,
5157                                      CXString *original, CXString *transformed);
5158 
5159 /**
5160  * \brief Dispose the remapping.
5161  */
5162 CINDEX_LINKAGE void clang_remap_dispose(CXRemapping);
5163 
5164 /**
5165  * @}
5166  */
5167 
5168 /** \defgroup CINDEX_HIGH Higher level API functions
5169  *
5170  * @{
5171  */
5172 
5173 enum CXVisitorResult {
5174   CXVisit_Break,
5175   CXVisit_Continue
5176 };
5177 
5178 typedef struct {
5179   void *context;
5180   enum CXVisitorResult (*visit)(void *context, CXCursor, CXSourceRange);
5181 } CXCursorAndRangeVisitor;
5182 
5183 typedef enum {
5184   /**
5185    * \brief Function returned successfully.
5186    */
5187   CXResult_Success = 0,
5188   /**
5189    * \brief One of the parameters was invalid for the function.
5190    */
5191   CXResult_Invalid = 1,
5192   /**
5193    * \brief The function was terminated by a callback (e.g. it returned
5194    * CXVisit_Break)
5195    */
5196   CXResult_VisitBreak = 2
5197 
5198 } CXResult;
5199 
5200 /**
5201  * \brief Find references of a declaration in a specific file.
5202  *
5203  * \param cursor pointing to a declaration or a reference of one.
5204  *
5205  * \param file to search for references.
5206  *
5207  * \param visitor callback that will receive pairs of CXCursor/CXSourceRange for
5208  * each reference found.
5209  * The CXSourceRange will point inside the file; if the reference is inside
5210  * a macro (and not a macro argument) the CXSourceRange will be invalid.
5211  *
5212  * \returns one of the CXResult enumerators.
5213  */
5214 CINDEX_LINKAGE CXResult clang_findReferencesInFile(CXCursor cursor, CXFile file,
5215                                                CXCursorAndRangeVisitor visitor);
5216 
5217 /**
5218  * \brief Find #import/#include directives in a specific file.
5219  *
5220  * \param TU translation unit containing the file to query.
5221  *
5222  * \param file to search for #import/#include directives.
5223  *
5224  * \param visitor callback that will receive pairs of CXCursor/CXSourceRange for
5225  * each directive found.
5226  *
5227  * \returns one of the CXResult enumerators.
5228  */
5229 CINDEX_LINKAGE CXResult clang_findIncludesInFile(CXTranslationUnit TU,
5230                                                  CXFile file,
5231                                               CXCursorAndRangeVisitor visitor);
5232 
5233 #ifdef __has_feature
5234 #  if __has_feature(blocks)
5235 
5236 typedef enum CXVisitorResult
5237     (^CXCursorAndRangeVisitorBlock)(CXCursor, CXSourceRange);
5238 
5239 CINDEX_LINKAGE
5240 CXResult clang_findReferencesInFileWithBlock(CXCursor, CXFile,
5241                                              CXCursorAndRangeVisitorBlock);
5242 
5243 CINDEX_LINKAGE
5244 CXResult clang_findIncludesInFileWithBlock(CXTranslationUnit, CXFile,
5245                                            CXCursorAndRangeVisitorBlock);
5246 
5247 #  endif
5248 #endif
5249 
5250 /**
5251  * \brief The client's data object that is associated with a CXFile.
5252  */
5253 typedef void *CXIdxClientFile;
5254 
5255 /**
5256  * \brief The client's data object that is associated with a semantic entity.
5257  */
5258 typedef void *CXIdxClientEntity;
5259 
5260 /**
5261  * \brief The client's data object that is associated with a semantic container
5262  * of entities.
5263  */
5264 typedef void *CXIdxClientContainer;
5265 
5266 /**
5267  * \brief The client's data object that is associated with an AST file (PCH
5268  * or module).
5269  */
5270 typedef void *CXIdxClientASTFile;
5271 
5272 /**
5273  * \brief Source location passed to index callbacks.
5274  */
5275 typedef struct {
5276   void *ptr_data[2];
5277   unsigned int_data;
5278 } CXIdxLoc;
5279 
5280 /**
5281  * \brief Data for ppIncludedFile callback.
5282  */
5283 typedef struct {
5284   /**
5285    * \brief Location of '#' in the \#include/\#import directive.
5286    */
5287   CXIdxLoc hashLoc;
5288   /**
5289    * \brief Filename as written in the \#include/\#import directive.
5290    */
5291   const char *filename;
5292   /**
5293    * \brief The actual file that the \#include/\#import directive resolved to.
5294    */
5295   CXFile file;
5296   int isImport;
5297   int isAngled;
5298   /**
5299    * \brief Non-zero if the directive was automatically turned into a module
5300    * import.
5301    */
5302   int isModuleImport;
5303 } CXIdxIncludedFileInfo;
5304 
5305 /**
5306  * \brief Data for IndexerCallbacks#importedASTFile.
5307  */
5308 typedef struct {
5309   /**
5310    * \brief Top level AST file containing the imported PCH, module or submodule.
5311    */
5312   CXFile file;
5313   /**
5314    * \brief The imported module or NULL if the AST file is a PCH.
5315    */
5316   CXModule module;
5317   /**
5318    * \brief Location where the file is imported. Applicable only for modules.
5319    */
5320   CXIdxLoc loc;
5321   /**
5322    * \brief Non-zero if an inclusion directive was automatically turned into
5323    * a module import. Applicable only for modules.
5324    */
5325   int isImplicit;
5326 
5327 } CXIdxImportedASTFileInfo;
5328 
5329 typedef enum {
5330   CXIdxEntity_Unexposed     = 0,
5331   CXIdxEntity_Typedef       = 1,
5332   CXIdxEntity_Function      = 2,
5333   CXIdxEntity_Variable      = 3,
5334   CXIdxEntity_Field         = 4,
5335   CXIdxEntity_EnumConstant  = 5,
5336 
5337   CXIdxEntity_ObjCClass     = 6,
5338   CXIdxEntity_ObjCProtocol  = 7,
5339   CXIdxEntity_ObjCCategory  = 8,
5340 
5341   CXIdxEntity_ObjCInstanceMethod = 9,
5342   CXIdxEntity_ObjCClassMethod    = 10,
5343   CXIdxEntity_ObjCProperty  = 11,
5344   CXIdxEntity_ObjCIvar      = 12,
5345 
5346   CXIdxEntity_Enum          = 13,
5347   CXIdxEntity_Struct        = 14,
5348   CXIdxEntity_Union         = 15,
5349 
5350   CXIdxEntity_CXXClass              = 16,
5351   CXIdxEntity_CXXNamespace          = 17,
5352   CXIdxEntity_CXXNamespaceAlias     = 18,
5353   CXIdxEntity_CXXStaticVariable     = 19,
5354   CXIdxEntity_CXXStaticMethod       = 20,
5355   CXIdxEntity_CXXInstanceMethod     = 21,
5356   CXIdxEntity_CXXConstructor        = 22,
5357   CXIdxEntity_CXXDestructor         = 23,
5358   CXIdxEntity_CXXConversionFunction = 24,
5359   CXIdxEntity_CXXTypeAlias          = 25,
5360   CXIdxEntity_CXXInterface          = 26
5361 
5362 } CXIdxEntityKind;
5363 
5364 typedef enum {
5365   CXIdxEntityLang_None = 0,
5366   CXIdxEntityLang_C    = 1,
5367   CXIdxEntityLang_ObjC = 2,
5368   CXIdxEntityLang_CXX  = 3
5369 } CXIdxEntityLanguage;
5370 
5371 /**
5372  * \brief Extra C++ template information for an entity. This can apply to:
5373  * CXIdxEntity_Function
5374  * CXIdxEntity_CXXClass
5375  * CXIdxEntity_CXXStaticMethod
5376  * CXIdxEntity_CXXInstanceMethod
5377  * CXIdxEntity_CXXConstructor
5378  * CXIdxEntity_CXXConversionFunction
5379  * CXIdxEntity_CXXTypeAlias
5380  */
5381 typedef enum {
5382   CXIdxEntity_NonTemplate   = 0,
5383   CXIdxEntity_Template      = 1,
5384   CXIdxEntity_TemplatePartialSpecialization = 2,
5385   CXIdxEntity_TemplateSpecialization = 3
5386 } CXIdxEntityCXXTemplateKind;
5387 
5388 typedef enum {
5389   CXIdxAttr_Unexposed     = 0,
5390   CXIdxAttr_IBAction      = 1,
5391   CXIdxAttr_IBOutlet      = 2,
5392   CXIdxAttr_IBOutletCollection = 3
5393 } CXIdxAttrKind;
5394 
5395 typedef struct {
5396   CXIdxAttrKind kind;
5397   CXCursor cursor;
5398   CXIdxLoc loc;
5399 } CXIdxAttrInfo;
5400 
5401 typedef struct {
5402   CXIdxEntityKind kind;
5403   CXIdxEntityCXXTemplateKind templateKind;
5404   CXIdxEntityLanguage lang;
5405   const char *name;
5406   const char *USR;
5407   CXCursor cursor;
5408   const CXIdxAttrInfo *const *attributes;
5409   unsigned numAttributes;
5410 } CXIdxEntityInfo;
5411 
5412 typedef struct {
5413   CXCursor cursor;
5414 } CXIdxContainerInfo;
5415 
5416 typedef struct {
5417   const CXIdxAttrInfo *attrInfo;
5418   const CXIdxEntityInfo *objcClass;
5419   CXCursor classCursor;
5420   CXIdxLoc classLoc;
5421 } CXIdxIBOutletCollectionAttrInfo;
5422 
5423 typedef enum {
5424   CXIdxDeclFlag_Skipped = 0x1
5425 } CXIdxDeclInfoFlags;
5426 
5427 typedef struct {
5428   const CXIdxEntityInfo *entityInfo;
5429   CXCursor cursor;
5430   CXIdxLoc loc;
5431   const CXIdxContainerInfo *semanticContainer;
5432   /**
5433    * \brief Generally same as #semanticContainer but can be different in
5434    * cases like out-of-line C++ member functions.
5435    */
5436   const CXIdxContainerInfo *lexicalContainer;
5437   int isRedeclaration;
5438   int isDefinition;
5439   int isContainer;
5440   const CXIdxContainerInfo *declAsContainer;
5441   /**
5442    * \brief Whether the declaration exists in code or was created implicitly
5443    * by the compiler, e.g. implicit objc methods for properties.
5444    */
5445   int isImplicit;
5446   const CXIdxAttrInfo *const *attributes;
5447   unsigned numAttributes;
5448 
5449   unsigned flags;
5450 
5451 } CXIdxDeclInfo;
5452 
5453 typedef enum {
5454   CXIdxObjCContainer_ForwardRef = 0,
5455   CXIdxObjCContainer_Interface = 1,
5456   CXIdxObjCContainer_Implementation = 2
5457 } CXIdxObjCContainerKind;
5458 
5459 typedef struct {
5460   const CXIdxDeclInfo *declInfo;
5461   CXIdxObjCContainerKind kind;
5462 } CXIdxObjCContainerDeclInfo;
5463 
5464 typedef struct {
5465   const CXIdxEntityInfo *base;
5466   CXCursor cursor;
5467   CXIdxLoc loc;
5468 } CXIdxBaseClassInfo;
5469 
5470 typedef struct {
5471   const CXIdxEntityInfo *protocol;
5472   CXCursor cursor;
5473   CXIdxLoc loc;
5474 } CXIdxObjCProtocolRefInfo;
5475 
5476 typedef struct {
5477   const CXIdxObjCProtocolRefInfo *const *protocols;
5478   unsigned numProtocols;
5479 } CXIdxObjCProtocolRefListInfo;
5480 
5481 typedef struct {
5482   const CXIdxObjCContainerDeclInfo *containerInfo;
5483   const CXIdxBaseClassInfo *superInfo;
5484   const CXIdxObjCProtocolRefListInfo *protocols;
5485 } CXIdxObjCInterfaceDeclInfo;
5486 
5487 typedef struct {
5488   const CXIdxObjCContainerDeclInfo *containerInfo;
5489   const CXIdxEntityInfo *objcClass;
5490   CXCursor classCursor;
5491   CXIdxLoc classLoc;
5492   const CXIdxObjCProtocolRefListInfo *protocols;
5493 } CXIdxObjCCategoryDeclInfo;
5494 
5495 typedef struct {
5496   const CXIdxDeclInfo *declInfo;
5497   const CXIdxEntityInfo *getter;
5498   const CXIdxEntityInfo *setter;
5499 } CXIdxObjCPropertyDeclInfo;
5500 
5501 typedef struct {
5502   const CXIdxDeclInfo *declInfo;
5503   const CXIdxBaseClassInfo *const *bases;
5504   unsigned numBases;
5505 } CXIdxCXXClassDeclInfo;
5506 
5507 /**
5508  * \brief Data for IndexerCallbacks#indexEntityReference.
5509  */
5510 typedef enum {
5511   /**
5512    * \brief The entity is referenced directly in user's code.
5513    */
5514   CXIdxEntityRef_Direct = 1,
5515   /**
5516    * \brief An implicit reference, e.g. a reference of an ObjC method via the
5517    * dot syntax.
5518    */
5519   CXIdxEntityRef_Implicit = 2
5520 } CXIdxEntityRefKind;
5521 
5522 /**
5523  * \brief Data for IndexerCallbacks#indexEntityReference.
5524  */
5525 typedef struct {
5526   CXIdxEntityRefKind kind;
5527   /**
5528    * \brief Reference cursor.
5529    */
5530   CXCursor cursor;
5531   CXIdxLoc loc;
5532   /**
5533    * \brief The entity that gets referenced.
5534    */
5535   const CXIdxEntityInfo *referencedEntity;
5536   /**
5537    * \brief Immediate "parent" of the reference. For example:
5538    *
5539    * \code
5540    * Foo *var;
5541    * \endcode
5542    *
5543    * The parent of reference of type 'Foo' is the variable 'var'.
5544    * For references inside statement bodies of functions/methods,
5545    * the parentEntity will be the function/method.
5546    */
5547   const CXIdxEntityInfo *parentEntity;
5548   /**
5549    * \brief Lexical container context of the reference.
5550    */
5551   const CXIdxContainerInfo *container;
5552 } CXIdxEntityRefInfo;
5553 
5554 /**
5555  * \brief A group of callbacks used by #clang_indexSourceFile and
5556  * #clang_indexTranslationUnit.
5557  */
5558 typedef struct {
5559   /**
5560    * \brief Called periodically to check whether indexing should be aborted.
5561    * Should return 0 to continue, and non-zero to abort.
5562    */
5563   int (*abortQuery)(CXClientData client_data, void *reserved);
5564 
5565   /**
5566    * \brief Called at the end of indexing; passes the complete diagnostic set.
5567    */
5568   void (*diagnostic)(CXClientData client_data,
5569                      CXDiagnosticSet, void *reserved);
5570 
5571   CXIdxClientFile (*enteredMainFile)(CXClientData client_data,
5572                                      CXFile mainFile, void *reserved);
5573 
5574   /**
5575    * \brief Called when a file gets \#included/\#imported.
5576    */
5577   CXIdxClientFile (*ppIncludedFile)(CXClientData client_data,
5578                                     const CXIdxIncludedFileInfo *);
5579 
5580   /**
5581    * \brief Called when a AST file (PCH or module) gets imported.
5582    *
5583    * AST files will not get indexed (there will not be callbacks to index all
5584    * the entities in an AST file). The recommended action is that, if the AST
5585    * file is not already indexed, to initiate a new indexing job specific to
5586    * the AST file.
5587    */
5588   CXIdxClientASTFile (*importedASTFile)(CXClientData client_data,
5589                                         const CXIdxImportedASTFileInfo *);
5590 
5591   /**
5592    * \brief Called at the beginning of indexing a translation unit.
5593    */
5594   CXIdxClientContainer (*startedTranslationUnit)(CXClientData client_data,
5595                                                  void *reserved);
5596 
5597   void (*indexDeclaration)(CXClientData client_data,
5598                            const CXIdxDeclInfo *);
5599 
5600   /**
5601    * \brief Called to index a reference of an entity.
5602    */
5603   void (*indexEntityReference)(CXClientData client_data,
5604                                const CXIdxEntityRefInfo *);
5605 
5606 } IndexerCallbacks;
5607 
5608 CINDEX_LINKAGE int clang_index_isEntityObjCContainerKind(CXIdxEntityKind);
5609 CINDEX_LINKAGE const CXIdxObjCContainerDeclInfo *
5610 clang_index_getObjCContainerDeclInfo(const CXIdxDeclInfo *);
5611 
5612 CINDEX_LINKAGE const CXIdxObjCInterfaceDeclInfo *
5613 clang_index_getObjCInterfaceDeclInfo(const CXIdxDeclInfo *);
5614 
5615 CINDEX_LINKAGE
5616 const CXIdxObjCCategoryDeclInfo *
5617 clang_index_getObjCCategoryDeclInfo(const CXIdxDeclInfo *);
5618 
5619 CINDEX_LINKAGE const CXIdxObjCProtocolRefListInfo *
5620 clang_index_getObjCProtocolRefListInfo(const CXIdxDeclInfo *);
5621 
5622 CINDEX_LINKAGE const CXIdxObjCPropertyDeclInfo *
5623 clang_index_getObjCPropertyDeclInfo(const CXIdxDeclInfo *);
5624 
5625 CINDEX_LINKAGE const CXIdxIBOutletCollectionAttrInfo *
5626 clang_index_getIBOutletCollectionAttrInfo(const CXIdxAttrInfo *);
5627 
5628 CINDEX_LINKAGE const CXIdxCXXClassDeclInfo *
5629 clang_index_getCXXClassDeclInfo(const CXIdxDeclInfo *);
5630 
5631 /**
5632  * \brief For retrieving a custom CXIdxClientContainer attached to a
5633  * container.
5634  */
5635 CINDEX_LINKAGE CXIdxClientContainer
5636 clang_index_getClientContainer(const CXIdxContainerInfo *);
5637 
5638 /**
5639  * \brief For setting a custom CXIdxClientContainer attached to a
5640  * container.
5641  */
5642 CINDEX_LINKAGE void
5643 clang_index_setClientContainer(const CXIdxContainerInfo *,CXIdxClientContainer);
5644 
5645 /**
5646  * \brief For retrieving a custom CXIdxClientEntity attached to an entity.
5647  */
5648 CINDEX_LINKAGE CXIdxClientEntity
5649 clang_index_getClientEntity(const CXIdxEntityInfo *);
5650 
5651 /**
5652  * \brief For setting a custom CXIdxClientEntity attached to an entity.
5653  */
5654 CINDEX_LINKAGE void
5655 clang_index_setClientEntity(const CXIdxEntityInfo *, CXIdxClientEntity);
5656 
5657 /**
5658  * \brief An indexing action/session, to be applied to one or multiple
5659  * translation units.
5660  */
5661 typedef void *CXIndexAction;
5662 
5663 /**
5664  * \brief An indexing action/session, to be applied to one or multiple
5665  * translation units.
5666  *
5667  * \param CIdx The index object with which the index action will be associated.
5668  */
5669 CINDEX_LINKAGE CXIndexAction clang_IndexAction_create(CXIndex CIdx);
5670 
5671 /**
5672  * \brief Destroy the given index action.
5673  *
5674  * The index action must not be destroyed until all of the translation units
5675  * created within that index action have been destroyed.
5676  */
5677 CINDEX_LINKAGE void clang_IndexAction_dispose(CXIndexAction);
5678 
5679 typedef enum {
5680   /**
5681    * \brief Used to indicate that no special indexing options are needed.
5682    */
5683   CXIndexOpt_None = 0x0,
5684 
5685   /**
5686    * \brief Used to indicate that IndexerCallbacks#indexEntityReference should
5687    * be invoked for only one reference of an entity per source file that does
5688    * not also include a declaration/definition of the entity.
5689    */
5690   CXIndexOpt_SuppressRedundantRefs = 0x1,
5691 
5692   /**
5693    * \brief Function-local symbols should be indexed. If this is not set
5694    * function-local symbols will be ignored.
5695    */
5696   CXIndexOpt_IndexFunctionLocalSymbols = 0x2,
5697 
5698   /**
5699    * \brief Implicit function/class template instantiations should be indexed.
5700    * If this is not set, implicit instantiations will be ignored.
5701    */
5702   CXIndexOpt_IndexImplicitTemplateInstantiations = 0x4,
5703 
5704   /**
5705    * \brief Suppress all compiler warnings when parsing for indexing.
5706    */
5707   CXIndexOpt_SuppressWarnings = 0x8,
5708 
5709   /**
5710    * \brief Skip a function/method body that was already parsed during an
5711    * indexing session assosiated with a \c CXIndexAction object.
5712    * Bodies in system headers are always skipped.
5713    */
5714   CXIndexOpt_SkipParsedBodiesInSession = 0x10
5715 
5716 } CXIndexOptFlags;
5717 
5718 /**
5719  * \brief Index the given source file and the translation unit corresponding
5720  * to that file via callbacks implemented through #IndexerCallbacks.
5721  *
5722  * \param client_data pointer data supplied by the client, which will
5723  * be passed to the invoked callbacks.
5724  *
5725  * \param index_callbacks Pointer to indexing callbacks that the client
5726  * implements.
5727  *
5728  * \param index_callbacks_size Size of #IndexerCallbacks structure that gets
5729  * passed in index_callbacks.
5730  *
5731  * \param index_options A bitmask of options that affects how indexing is
5732  * performed. This should be a bitwise OR of the CXIndexOpt_XXX flags.
5733  *
5734  * \param out_TU [out] pointer to store a CXTranslationUnit that can be reused
5735  * after indexing is finished. Set to NULL if you do not require it.
5736  *
5737  * \returns If there is a failure from which the there is no recovery, returns
5738  * non-zero, otherwise returns 0.
5739  *
5740  * The rest of the parameters are the same as #clang_parseTranslationUnit.
5741  */
5742 CINDEX_LINKAGE int clang_indexSourceFile(CXIndexAction,
5743                                          CXClientData client_data,
5744                                          IndexerCallbacks *index_callbacks,
5745                                          unsigned index_callbacks_size,
5746                                          unsigned index_options,
5747                                          const char *source_filename,
5748                                          const char * const *command_line_args,
5749                                          int num_command_line_args,
5750                                          struct CXUnsavedFile *unsaved_files,
5751                                          unsigned num_unsaved_files,
5752                                          CXTranslationUnit *out_TU,
5753                                          unsigned TU_options);
5754 
5755 /**
5756  * \brief Index the given translation unit via callbacks implemented through
5757  * #IndexerCallbacks.
5758  *
5759  * The order of callback invocations is not guaranteed to be the same as
5760  * when indexing a source file. The high level order will be:
5761  *
5762  *   -Preprocessor callbacks invocations
5763  *   -Declaration/reference callbacks invocations
5764  *   -Diagnostic callback invocations
5765  *
5766  * The parameters are the same as #clang_indexSourceFile.
5767  *
5768  * \returns If there is a failure from which the there is no recovery, returns
5769  * non-zero, otherwise returns 0.
5770  */
5771 CINDEX_LINKAGE int clang_indexTranslationUnit(CXIndexAction,
5772                                               CXClientData client_data,
5773                                               IndexerCallbacks *index_callbacks,
5774                                               unsigned index_callbacks_size,
5775                                               unsigned index_options,
5776                                               CXTranslationUnit);
5777 
5778 /**
5779  * \brief Retrieve the CXIdxFile, file, line, column, and offset represented by
5780  * the given CXIdxLoc.
5781  *
5782  * If the location refers into a macro expansion, retrieves the
5783  * location of the macro expansion and if it refers into a macro argument
5784  * retrieves the location of the argument.
5785  */
5786 CINDEX_LINKAGE void clang_indexLoc_getFileLocation(CXIdxLoc loc,
5787                                                    CXIdxClientFile *indexFile,
5788                                                    CXFile *file,
5789                                                    unsigned *line,
5790                                                    unsigned *column,
5791                                                    unsigned *offset);
5792 
5793 /**
5794  * \brief Retrieve the CXSourceLocation represented by the given CXIdxLoc.
5795  */
5796 CINDEX_LINKAGE
5797 CXSourceLocation clang_indexLoc_getCXSourceLocation(CXIdxLoc loc);
5798 
5799 /**
5800  * @}
5801  */
5802 
5803 /**
5804  * @}
5805  */
5806 
5807 #ifdef __cplusplus
5808 }
5809 #endif
5810 #endif
5811 
5812