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Index.h
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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 interface 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 LLVM_CLANG_C_INDEX_H
17 #define LLVM_CLANG_C_INDEX_H
18 
19 #include <time.h>
20 
21 #include "clang-c/Platform.h"
22 #include "clang-c/CXErrorCode.h"
23 #include "clang-c/CXString.h"
24 #include "clang-c/BuildSystem.h"
25 
26 /**
27  * 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 50
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  * 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  * An opaque type representing target information for a given translation
85  * unit.
86  */
87 typedef struct CXTargetInfoImpl *CXTargetInfo;
88 
89 /**
90  * A single translation unit, which resides in an index.
91  */
92 typedef struct CXTranslationUnitImpl *CXTranslationUnit;
93 
94 /**
95  * Opaque pointer representing client data that will be passed through
96  * to various callbacks and visitors.
97  */
98 typedef void *CXClientData;
99 
100 /**
101  * Provides the contents of a file that has not yet been saved to disk.
102  *
103  * Each CXUnsavedFile instance provides the name of a file on the
104  * system along with the current contents of that file that have not
105  * yet been saved to disk.
106  */
108  /**
109  * The file whose contents have not yet been saved.
110  *
111  * This file must already exist in the file system.
112  */
113  const char *Filename;
114 
115  /**
116  * A buffer containing the unsaved contents of this file.
117  */
118  const char *Contents;
119 
120  /**
121  * The length of the unsaved contents of this buffer.
122  */
123  unsigned long Length;
124 };
125 
126 /**
127  * Describes the availability of a particular entity, which indicates
128  * whether the use of this entity will result in a warning or error due to
129  * it being deprecated or unavailable.
130  */
132  /**
133  * The entity is available.
134  */
136  /**
137  * The entity is available, but has been deprecated (and its use is
138  * not recommended).
139  */
141  /**
142  * The entity is not available; any use of it will be an error.
143  */
145  /**
146  * The entity is available, but not accessible; any use of it will be
147  * an error.
148  */
150 };
151 
152 /**
153  * Describes a version number of the form major.minor.subminor.
154  */
155 typedef struct CXVersion {
156  /**
157  * The major version number, e.g., the '10' in '10.7.3'. A negative
158  * value indicates that there is no version number at all.
159  */
160  int Major;
161  /**
162  * The minor version number, e.g., the '7' in '10.7.3'. This value
163  * will be negative if no minor version number was provided, e.g., for
164  * version '10'.
165  */
166  int Minor;
167  /**
168  * The subminor version number, e.g., the '3' in '10.7.3'. This value
169  * will be negative if no minor or subminor version number was provided,
170  * e.g., in version '10' or '10.7'.
171  */
172  int Subminor;
173 } CXVersion;
174 
175 /**
176  * Describes the exception specification of a cursor.
177  *
178  * A negative value indicates that the cursor is not a function declaration.
179  */
181  /**
182  * The cursor has no exception specification.
183  */
185 
186  /**
187  * The cursor has exception specification throw()
188  */
190 
191  /**
192  * The cursor has exception specification throw(T1, T2)
193  */
195 
196  /**
197  * The cursor has exception specification throw(...).
198  */
200 
201  /**
202  * The cursor has exception specification basic noexcept.
203  */
205 
206  /**
207  * The cursor has exception specification computed noexcept.
208  */
210 
211  /**
212  * The exception specification has not yet been evaluated.
213  */
215 
216  /**
217  * The exception specification has not yet been instantiated.
218  */
220 
221  /**
222  * The exception specification has not been parsed yet.
223  */
225 };
226 
227 /**
228  * Provides a shared context for creating translation units.
229  *
230  * It provides two options:
231  *
232  * - excludeDeclarationsFromPCH: When non-zero, allows enumeration of "local"
233  * declarations (when loading any new translation units). A "local" declaration
234  * is one that belongs in the translation unit itself and not in a precompiled
235  * header that was used by the translation unit. If zero, all declarations
236  * will be enumerated.
237  *
238  * Here is an example:
239  *
240  * \code
241  * // excludeDeclsFromPCH = 1, displayDiagnostics=1
242  * Idx = clang_createIndex(1, 1);
243  *
244  * // IndexTest.pch was produced with the following command:
245  * // "clang -x c IndexTest.h -emit-ast -o IndexTest.pch"
246  * TU = clang_createTranslationUnit(Idx, "IndexTest.pch");
247  *
248  * // This will load all the symbols from 'IndexTest.pch'
249  * clang_visitChildren(clang_getTranslationUnitCursor(TU),
250  * TranslationUnitVisitor, 0);
251  * clang_disposeTranslationUnit(TU);
252  *
253  * // This will load all the symbols from 'IndexTest.c', excluding symbols
254  * // from 'IndexTest.pch'.
255  * char *args[] = { "-Xclang", "-include-pch=IndexTest.pch" };
256  * TU = clang_createTranslationUnitFromSourceFile(Idx, "IndexTest.c", 2, args,
257  * 0, 0);
258  * clang_visitChildren(clang_getTranslationUnitCursor(TU),
259  * TranslationUnitVisitor, 0);
260  * clang_disposeTranslationUnit(TU);
261  * \endcode
262  *
263  * This process of creating the 'pch', loading it separately, and using it (via
264  * -include-pch) allows 'excludeDeclsFromPCH' to remove redundant callbacks
265  * (which gives the indexer the same performance benefit as the compiler).
266  */
267 CINDEX_LINKAGE CXIndex clang_createIndex(int excludeDeclarationsFromPCH,
268  int displayDiagnostics);
269 
270 /**
271  * Destroy the given index.
272  *
273  * The index must not be destroyed until all of the translation units created
274  * within that index have been destroyed.
275  */
276 CINDEX_LINKAGE void clang_disposeIndex(CXIndex index);
277 
278 typedef enum {
279  /**
280  * Used to indicate that no special CXIndex options are needed.
281  */
283 
284  /**
285  * Used to indicate that threads that libclang creates for indexing
286  * purposes should use background priority.
287  *
288  * Affects #clang_indexSourceFile, #clang_indexTranslationUnit,
289  * #clang_parseTranslationUnit, #clang_saveTranslationUnit.
290  */
292 
293  /**
294  * Used to indicate that threads that libclang creates for editing
295  * purposes should use background priority.
296  *
297  * Affects #clang_reparseTranslationUnit, #clang_codeCompleteAt,
298  * #clang_annotateTokens
299  */
301 
302  /**
303  * Used to indicate that all threads that libclang creates should use
304  * background priority.
305  */
309 
311 
312 /**
313  * Sets general options associated with a CXIndex.
314  *
315  * For example:
316  * \code
317  * CXIndex idx = ...;
318  * clang_CXIndex_setGlobalOptions(idx,
319  * clang_CXIndex_getGlobalOptions(idx) |
320  * CXGlobalOpt_ThreadBackgroundPriorityForIndexing);
321  * \endcode
322  *
323  * \param options A bitmask of options, a bitwise OR of CXGlobalOpt_XXX flags.
324  */
325 CINDEX_LINKAGE void clang_CXIndex_setGlobalOptions(CXIndex, unsigned options);
326 
327 /**
328  * Gets the general options associated with a CXIndex.
329  *
330  * \returns A bitmask of options, a bitwise OR of CXGlobalOpt_XXX flags that
331  * are associated with the given CXIndex object.
332  */
334 
335 /**
336  * Sets the invocation emission path option in a CXIndex.
337  *
338  * The invocation emission path specifies a path which will contain log
339  * files for certain libclang invocations. A null value (default) implies that
340  * libclang invocations are not logged..
341  */
342 CINDEX_LINKAGE void
343 clang_CXIndex_setInvocationEmissionPathOption(CXIndex, const char *Path);
344 
345 /**
346  * \defgroup CINDEX_FILES File manipulation routines
347  *
348  * @{
349  */
350 
351 /**
352  * A particular source file that is part of a translation unit.
353  */
354 typedef void *CXFile;
355 
356 /**
357  * Retrieve the complete file and path name of the given file.
358  */
360 
361 /**
362  * Retrieve the last modification time of the given file.
363  */
364 CINDEX_LINKAGE time_t clang_getFileTime(CXFile SFile);
365 
366 /**
367  * Uniquely identifies a CXFile, that refers to the same underlying file,
368  * across an indexing session.
369  */
370 typedef struct {
371  unsigned long long data[3];
373 
374 /**
375  * Retrieve the unique ID for the given \c file.
376  *
377  * \param file the file to get the ID for.
378  * \param outID stores the returned CXFileUniqueID.
379  * \returns If there was a failure getting the unique ID, returns non-zero,
380  * otherwise returns 0.
381 */
382 CINDEX_LINKAGE int clang_getFileUniqueID(CXFile file, CXFileUniqueID *outID);
383 
384 /**
385  * Determine whether the given header is guarded against
386  * multiple inclusions, either with the conventional
387  * \#ifndef/\#define/\#endif macro guards or with \#pragma once.
388  */
389 CINDEX_LINKAGE unsigned
390 clang_isFileMultipleIncludeGuarded(CXTranslationUnit tu, CXFile file);
391 
392 /**
393  * Retrieve a file handle within the given translation unit.
394  *
395  * \param tu the translation unit
396  *
397  * \param file_name the name of the file.
398  *
399  * \returns the file handle for the named file in the translation unit \p tu,
400  * or a NULL file handle if the file was not a part of this translation unit.
401  */
402 CINDEX_LINKAGE CXFile clang_getFile(CXTranslationUnit tu,
403  const char *file_name);
404 
405 /**
406  * Retrieve the buffer associated with the given file.
407  *
408  * \param tu the translation unit
409  *
410  * \param file the file for which to retrieve the buffer.
411  *
412  * \param size [out] if non-NULL, will be set to the size of the buffer.
413  *
414  * \returns a pointer to the buffer in memory that holds the contents of
415  * \p file, or a NULL pointer when the file is not loaded.
416  */
417 CINDEX_LINKAGE const char *clang_getFileContents(CXTranslationUnit tu,
418  CXFile file, size_t *size);
419 
420 /**
421  * Returns non-zero if the \c file1 and \c file2 point to the same file,
422  * or they are both NULL.
423  */
424 CINDEX_LINKAGE int clang_File_isEqual(CXFile file1, CXFile file2);
425 
426 /**
427  * Returns the real path name of \c file.
428  *
429  * An empty string may be returned. Use \c clang_getFileName() in that case.
430  */
432 
433 /**
434  * @}
435  */
436 
437 /**
438  * \defgroup CINDEX_LOCATIONS Physical source locations
439  *
440  * Clang represents physical source locations in its abstract syntax tree in
441  * great detail, with file, line, and column information for the majority of
442  * the tokens parsed in the source code. These data types and functions are
443  * used to represent source location information, either for a particular
444  * point in the program or for a range of points in the program, and extract
445  * specific location information from those data types.
446  *
447  * @{
448  */
449 
450 /**
451  * Identifies a specific source location within a translation
452  * unit.
453  *
454  * Use clang_getExpansionLocation() or clang_getSpellingLocation()
455  * to map a source location to a particular file, line, and column.
456  */
457 typedef struct {
458  const void *ptr_data[2];
459  unsigned int_data;
461 
462 /**
463  * Identifies a half-open character range in the source code.
464  *
465  * Use clang_getRangeStart() and clang_getRangeEnd() to retrieve the
466  * starting and end locations from a source range, respectively.
467  */
468 typedef struct {
469  const void *ptr_data[2];
470  unsigned begin_int_data;
471  unsigned end_int_data;
472 } CXSourceRange;
473 
474 /**
475  * Retrieve a NULL (invalid) source location.
476  */
478 
479 /**
480  * Determine whether two source locations, which must refer into
481  * the same translation unit, refer to exactly the same point in the source
482  * code.
483  *
484  * \returns non-zero if the source locations refer to the same location, zero
485  * if they refer to different locations.
486  */
488  CXSourceLocation loc2);
489 
490 /**
491  * Retrieves the source location associated with a given file/line/column
492  * in a particular translation unit.
493  */
495  CXFile file,
496  unsigned line,
497  unsigned column);
498 /**
499  * Retrieves the source location associated with a given character offset
500  * in a particular translation unit.
501  */
503  CXFile file,
504  unsigned offset);
505 
506 /**
507  * Returns non-zero if the given source location is in a system header.
508  */
510 
511 /**
512  * Returns non-zero if the given source location is in the main file of
513  * the corresponding translation unit.
514  */
516 
517 /**
518  * Retrieve a NULL (invalid) source range.
519  */
521 
522 /**
523  * Retrieve a source range given the beginning and ending source
524  * locations.
525  */
527  CXSourceLocation end);
528 
529 /**
530  * Determine whether two ranges are equivalent.
531  *
532  * \returns non-zero if the ranges are the same, zero if they differ.
533  */
535  CXSourceRange range2);
536 
537 /**
538  * Returns non-zero if \p range is null.
539  */
541 
542 /**
543  * Retrieve the file, line, column, and offset represented by
544  * the given source location.
545  *
546  * If the location refers into a macro expansion, retrieves the
547  * location of the macro expansion.
548  *
549  * \param location the location within a source file that will be decomposed
550  * into its parts.
551  *
552  * \param file [out] if non-NULL, will be set to the file to which the given
553  * source location points.
554  *
555  * \param line [out] if non-NULL, will be set to the line to which the given
556  * source location points.
557  *
558  * \param column [out] if non-NULL, will be set to the column to which the given
559  * source location points.
560  *
561  * \param offset [out] if non-NULL, will be set to the offset into the
562  * buffer to which the given source location points.
563  */
565  CXFile *file,
566  unsigned *line,
567  unsigned *column,
568  unsigned *offset);
569 
570 /**
571  * Retrieve the file, line and column represented by the given source
572  * location, as specified in a # line directive.
573  *
574  * Example: given the following source code in a file somefile.c
575  *
576  * \code
577  * #123 "dummy.c" 1
578  *
579  * static int func(void)
580  * {
581  * return 0;
582  * }
583  * \endcode
584  *
585  * the location information returned by this function would be
586  *
587  * File: dummy.c Line: 124 Column: 12
588  *
589  * whereas clang_getExpansionLocation would have returned
590  *
591  * File: somefile.c Line: 3 Column: 12
592  *
593  * \param location the location within a source file that will be decomposed
594  * into its parts.
595  *
596  * \param filename [out] if non-NULL, will be set to the filename of the
597  * source location. Note that filenames returned will be for "virtual" files,
598  * which don't necessarily exist on the machine running clang - e.g. when
599  * parsing preprocessed output obtained from a different environment. If
600  * a non-NULL value is passed in, remember to dispose of the returned value
601  * using \c clang_disposeString() once you've finished with it. For an invalid
602  * source location, an empty string is returned.
603  *
604  * \param line [out] if non-NULL, will be set to the line number of the
605  * source location. For an invalid source location, zero is returned.
606  *
607  * \param column [out] if non-NULL, will be set to the column number of the
608  * source location. For an invalid source location, zero is returned.
609  */
611  CXString *filename,
612  unsigned *line,
613  unsigned *column);
614 
615 /**
616  * Legacy API to retrieve the file, line, column, and offset represented
617  * by the given source location.
618  *
619  * This interface has been replaced by the newer interface
620  * #clang_getExpansionLocation(). See that interface's documentation for
621  * details.
622  */
624  CXFile *file,
625  unsigned *line,
626  unsigned *column,
627  unsigned *offset);
628 
629 /**
630  * Retrieve the file, line, column, and offset represented by
631  * the given source location.
632  *
633  * If the location refers into a macro instantiation, return where the
634  * location was originally spelled in the source file.
635  *
636  * \param location the location within a source file that will be decomposed
637  * into its parts.
638  *
639  * \param file [out] if non-NULL, will be set to the file to which the given
640  * source location points.
641  *
642  * \param line [out] if non-NULL, will be set to the line to which the given
643  * source location points.
644  *
645  * \param column [out] if non-NULL, will be set to the column to which the given
646  * source location points.
647  *
648  * \param offset [out] if non-NULL, will be set to the offset into the
649  * buffer to which the given source location points.
650  */
652  CXFile *file,
653  unsigned *line,
654  unsigned *column,
655  unsigned *offset);
656 
657 /**
658  * Retrieve the file, line, column, and offset represented by
659  * the given source location.
660  *
661  * If the location refers into a macro expansion, return where the macro was
662  * expanded or where the macro argument was written, if the location points at
663  * a macro argument.
664  *
665  * \param location the location within a source file that will be decomposed
666  * into its parts.
667  *
668  * \param file [out] if non-NULL, will be set to the file to which the given
669  * source location points.
670  *
671  * \param line [out] if non-NULL, will be set to the line to which the given
672  * source location points.
673  *
674  * \param column [out] if non-NULL, will be set to the column to which the given
675  * source location points.
676  *
677  * \param offset [out] if non-NULL, will be set to the offset into the
678  * buffer to which the given source location points.
679  */
681  CXFile *file,
682  unsigned *line,
683  unsigned *column,
684  unsigned *offset);
685 
686 /**
687  * Retrieve a source location representing the first character within a
688  * source range.
689  */
691 
692 /**
693  * Retrieve a source location representing the last character within a
694  * source range.
695  */
697 
698 /**
699  * Identifies an array of ranges.
700  */
701 typedef struct {
702  /** The number of ranges in the \c ranges array. */
703  unsigned count;
704  /**
705  * An array of \c CXSourceRanges.
706  */
709 
710 /**
711  * Retrieve all ranges that were skipped by the preprocessor.
712  *
713  * The preprocessor will skip lines when they are surrounded by an
714  * if/ifdef/ifndef directive whose condition does not evaluate to true.
715  */
717  CXFile file);
718 
719 /**
720  * Retrieve all ranges from all files that were skipped by the
721  * preprocessor.
722  *
723  * The preprocessor will skip lines when they are surrounded by an
724  * if/ifdef/ifndef directive whose condition does not evaluate to true.
725  */
727 
728 /**
729  * Destroy the given \c CXSourceRangeList.
730  */
732 
733 /**
734  * @}
735  */
736 
737 /**
738  * \defgroup CINDEX_DIAG Diagnostic reporting
739  *
740  * @{
741  */
742 
743 /**
744  * Describes the severity of a particular diagnostic.
745  */
747  /**
748  * A diagnostic that has been suppressed, e.g., by a command-line
749  * option.
750  */
752 
753  /**
754  * This diagnostic is a note that should be attached to the
755  * previous (non-note) diagnostic.
756  */
758 
759  /**
760  * This diagnostic indicates suspicious code that may not be
761  * wrong.
762  */
764 
765  /**
766  * This diagnostic indicates that the code is ill-formed.
767  */
769 
770  /**
771  * This diagnostic indicates that the code is ill-formed such
772  * that future parser recovery is unlikely to produce useful
773  * results.
774  */
776 };
777 
778 /**
779  * A single diagnostic, containing the diagnostic's severity,
780  * location, text, source ranges, and fix-it hints.
781  */
782 typedef void *CXDiagnostic;
783 
784 /**
785  * A group of CXDiagnostics.
786  */
787 typedef void *CXDiagnosticSet;
788 
789 /**
790  * Determine the number of diagnostics in a CXDiagnosticSet.
791  */
792 CINDEX_LINKAGE unsigned clang_getNumDiagnosticsInSet(CXDiagnosticSet Diags);
793 
794 /**
795  * Retrieve a diagnostic associated with the given CXDiagnosticSet.
796  *
797  * \param Diags the CXDiagnosticSet to query.
798  * \param Index the zero-based diagnostic number to retrieve.
799  *
800  * \returns the requested diagnostic. This diagnostic must be freed
801  * via a call to \c clang_disposeDiagnostic().
802  */
803 CINDEX_LINKAGE CXDiagnostic clang_getDiagnosticInSet(CXDiagnosticSet Diags,
804  unsigned Index);
805 
806 /**
807  * Describes the kind of error that occurred (if any) in a call to
808  * \c clang_loadDiagnostics.
809  */
811  /**
812  * Indicates that no error occurred.
813  */
815 
816  /**
817  * Indicates that an unknown error occurred while attempting to
818  * deserialize diagnostics.
819  */
821 
822  /**
823  * Indicates that the file containing the serialized diagnostics
824  * could not be opened.
825  */
827 
828  /**
829  * Indicates that the serialized diagnostics file is invalid or
830  * corrupt.
831  */
833 };
834 
835 /**
836  * Deserialize a set of diagnostics from a Clang diagnostics bitcode
837  * file.
838  *
839  * \param file The name of the file to deserialize.
840  * \param error A pointer to a enum value recording if there was a problem
841  * deserializing the diagnostics.
842  * \param errorString A pointer to a CXString for recording the error string
843  * if the file was not successfully loaded.
844  *
845  * \returns A loaded CXDiagnosticSet if successful, and NULL otherwise. These
846  * diagnostics should be released using clang_disposeDiagnosticSet().
847  */
848 CINDEX_LINKAGE CXDiagnosticSet clang_loadDiagnostics(const char *file,
849  enum CXLoadDiag_Error *error,
850  CXString *errorString);
851 
852 /**
853  * Release a CXDiagnosticSet and all of its contained diagnostics.
854  */
855 CINDEX_LINKAGE void clang_disposeDiagnosticSet(CXDiagnosticSet Diags);
856 
857 /**
858  * Retrieve the child diagnostics of a CXDiagnostic.
859  *
860  * This CXDiagnosticSet does not need to be released by
861  * clang_disposeDiagnosticSet.
862  */
863 CINDEX_LINKAGE CXDiagnosticSet clang_getChildDiagnostics(CXDiagnostic D);
864 
865 /**
866  * Determine the number of diagnostics produced for the given
867  * translation unit.
868  */
869 CINDEX_LINKAGE unsigned clang_getNumDiagnostics(CXTranslationUnit Unit);
870 
871 /**
872  * Retrieve a diagnostic associated with the given translation unit.
873  *
874  * \param Unit the translation unit to query.
875  * \param Index the zero-based diagnostic number to retrieve.
876  *
877  * \returns the requested diagnostic. This diagnostic must be freed
878  * via a call to \c clang_disposeDiagnostic().
879  */
880 CINDEX_LINKAGE CXDiagnostic clang_getDiagnostic(CXTranslationUnit Unit,
881  unsigned Index);
882 
883 /**
884  * Retrieve the complete set of diagnostics associated with a
885  * translation unit.
886  *
887  * \param Unit the translation unit to query.
888  */
889 CINDEX_LINKAGE CXDiagnosticSet
890  clang_getDiagnosticSetFromTU(CXTranslationUnit Unit);
891 
892 /**
893  * Destroy a diagnostic.
894  */
895 CINDEX_LINKAGE void clang_disposeDiagnostic(CXDiagnostic Diagnostic);
896 
897 /**
898  * Options to control the display of diagnostics.
899  *
900  * The values in this enum are meant to be combined to customize the
901  * behavior of \c clang_formatDiagnostic().
902  */
904  /**
905  * Display the source-location information where the
906  * diagnostic was located.
907  *
908  * When set, diagnostics will be prefixed by the file, line, and
909  * (optionally) column to which the diagnostic refers. For example,
910  *
911  * \code
912  * test.c:28: warning: extra tokens at end of #endif directive
913  * \endcode
914  *
915  * This option corresponds to the clang flag \c -fshow-source-location.
916  */
918 
919  /**
920  * If displaying the source-location information of the
921  * diagnostic, also include the column number.
922  *
923  * This option corresponds to the clang flag \c -fshow-column.
924  */
926 
927  /**
928  * If displaying the source-location information of the
929  * diagnostic, also include information about source ranges in a
930  * machine-parsable format.
931  *
932  * This option corresponds to the clang flag
933  * \c -fdiagnostics-print-source-range-info.
934  */
936 
937  /**
938  * Display the option name associated with this diagnostic, if any.
939  *
940  * The option name displayed (e.g., -Wconversion) will be placed in brackets
941  * after the diagnostic text. This option corresponds to the clang flag
942  * \c -fdiagnostics-show-option.
943  */
945 
946  /**
947  * Display the category number associated with this diagnostic, if any.
948  *
949  * The category number is displayed within brackets after the diagnostic text.
950  * This option corresponds to the clang flag
951  * \c -fdiagnostics-show-category=id.
952  */
954 
955  /**
956  * Display the category name associated with this diagnostic, if any.
957  *
958  * The category name is displayed within brackets after the diagnostic text.
959  * This option corresponds to the clang flag
960  * \c -fdiagnostics-show-category=name.
961  */
963 };
964 
965 /**
966  * Format the given diagnostic in a manner that is suitable for display.
967  *
968  * This routine will format the given diagnostic to a string, rendering
969  * the diagnostic according to the various options given. The
970  * \c clang_defaultDiagnosticDisplayOptions() function returns the set of
971  * options that most closely mimics the behavior of the clang compiler.
972  *
973  * \param Diagnostic The diagnostic to print.
974  *
975  * \param Options A set of options that control the diagnostic display,
976  * created by combining \c CXDiagnosticDisplayOptions values.
977  *
978  * \returns A new string containing for formatted diagnostic.
979  */
980 CINDEX_LINKAGE CXString clang_formatDiagnostic(CXDiagnostic Diagnostic,
981  unsigned Options);
982 
983 /**
984  * Retrieve the set of display options most similar to the
985  * default behavior of the clang compiler.
986  *
987  * \returns A set of display options suitable for use with \c
988  * clang_formatDiagnostic().
989  */
991 
992 /**
993  * Determine the severity of the given diagnostic.
994  */
996 clang_getDiagnosticSeverity(CXDiagnostic);
997 
998 /**
999  * Retrieve the source location of the given diagnostic.
1000  *
1001  * This location is where Clang would print the caret ('^') when
1002  * displaying the diagnostic on the command line.
1003  */
1005 
1006 /**
1007  * Retrieve the text of the given diagnostic.
1008  */
1010 
1011 /**
1012  * Retrieve the name of the command-line option that enabled this
1013  * diagnostic.
1014  *
1015  * \param Diag The diagnostic to be queried.
1016  *
1017  * \param Disable If non-NULL, will be set to the option that disables this
1018  * diagnostic (if any).
1019  *
1020  * \returns A string that contains the command-line option used to enable this
1021  * warning, such as "-Wconversion" or "-pedantic".
1022  */
1024  CXString *Disable);
1025 
1026 /**
1027  * Retrieve the category number for this diagnostic.
1028  *
1029  * Diagnostics can be categorized into groups along with other, related
1030  * diagnostics (e.g., diagnostics under the same warning flag). This routine
1031  * retrieves the category number for the given diagnostic.
1032  *
1033  * \returns The number of the category that contains this diagnostic, or zero
1034  * if this diagnostic is uncategorized.
1035  */
1036 CINDEX_LINKAGE unsigned clang_getDiagnosticCategory(CXDiagnostic);
1037 
1038 /**
1039  * Retrieve the name of a particular diagnostic category. This
1040  * is now deprecated. Use clang_getDiagnosticCategoryText()
1041  * instead.
1042  *
1043  * \param Category A diagnostic category number, as returned by
1044  * \c clang_getDiagnosticCategory().
1045  *
1046  * \returns The name of the given diagnostic category.
1047  */
1050 
1051 /**
1052  * Retrieve the diagnostic category text for a given diagnostic.
1053  *
1054  * \returns The text of the given diagnostic category.
1055  */
1057 
1058 /**
1059  * Determine the number of source ranges associated with the given
1060  * diagnostic.
1061  */
1062 CINDEX_LINKAGE unsigned clang_getDiagnosticNumRanges(CXDiagnostic);
1063 
1064 /**
1065  * Retrieve a source range associated with the diagnostic.
1066  *
1067  * A diagnostic's source ranges highlight important elements in the source
1068  * code. On the command line, Clang displays source ranges by
1069  * underlining them with '~' characters.
1070  *
1071  * \param Diagnostic the diagnostic whose range is being extracted.
1072  *
1073  * \param Range the zero-based index specifying which range to
1074  *
1075  * \returns the requested source range.
1076  */
1077 CINDEX_LINKAGE CXSourceRange clang_getDiagnosticRange(CXDiagnostic Diagnostic,
1078  unsigned Range);
1079 
1080 /**
1081  * Determine the number of fix-it hints associated with the
1082  * given diagnostic.
1083  */
1084 CINDEX_LINKAGE unsigned clang_getDiagnosticNumFixIts(CXDiagnostic Diagnostic);
1085 
1086 /**
1087  * Retrieve the replacement information for a given fix-it.
1088  *
1089  * Fix-its are described in terms of a source range whose contents
1090  * should be replaced by a string. This approach generalizes over
1091  * three kinds of operations: removal of source code (the range covers
1092  * the code to be removed and the replacement string is empty),
1093  * replacement of source code (the range covers the code to be
1094  * replaced and the replacement string provides the new code), and
1095  * insertion (both the start and end of the range point at the
1096  * insertion location, and the replacement string provides the text to
1097  * insert).
1098  *
1099  * \param Diagnostic The diagnostic whose fix-its are being queried.
1100  *
1101  * \param FixIt The zero-based index of the fix-it.
1102  *
1103  * \param ReplacementRange The source range whose contents will be
1104  * replaced with the returned replacement string. Note that source
1105  * ranges are half-open ranges [a, b), so the source code should be
1106  * replaced from a and up to (but not including) b.
1107  *
1108  * \returns A string containing text that should be replace the source
1109  * code indicated by the \c ReplacementRange.
1110  */
1111 CINDEX_LINKAGE CXString clang_getDiagnosticFixIt(CXDiagnostic Diagnostic,
1112  unsigned FixIt,
1113  CXSourceRange *ReplacementRange);
1114 
1115 /**
1116  * @}
1117  */
1118 
1119 /**
1120  * \defgroup CINDEX_TRANSLATION_UNIT Translation unit manipulation
1121  *
1122  * The routines in this group provide the ability to create and destroy
1123  * translation units from files, either by parsing the contents of the files or
1124  * by reading in a serialized representation of a translation unit.
1125  *
1126  * @{
1127  */
1128 
1129 /**
1130  * Get the original translation unit source file name.
1131  */
1133 clang_getTranslationUnitSpelling(CXTranslationUnit CTUnit);
1134 
1135 /**
1136  * Return the CXTranslationUnit for a given source file and the provided
1137  * command line arguments one would pass to the compiler.
1138  *
1139  * Note: The 'source_filename' argument is optional. If the caller provides a
1140  * NULL pointer, the name of the source file is expected to reside in the
1141  * specified command line arguments.
1142  *
1143  * Note: When encountered in 'clang_command_line_args', the following options
1144  * are ignored:
1145  *
1146  * '-c'
1147  * '-emit-ast'
1148  * '-fsyntax-only'
1149  * '-o <output file>' (both '-o' and '<output file>' are ignored)
1150  *
1151  * \param CIdx The index object with which the translation unit will be
1152  * associated.
1153  *
1154  * \param source_filename The name of the source file to load, or NULL if the
1155  * source file is included in \p clang_command_line_args.
1156  *
1157  * \param num_clang_command_line_args The number of command-line arguments in
1158  * \p clang_command_line_args.
1159  *
1160  * \param clang_command_line_args The command-line arguments that would be
1161  * passed to the \c clang executable if it were being invoked out-of-process.
1162  * These command-line options will be parsed and will affect how the translation
1163  * unit is parsed. Note that the following options are ignored: '-c',
1164  * '-emit-ast', '-fsyntax-only' (which is the default), and '-o <output file>'.
1165  *
1166  * \param num_unsaved_files the number of unsaved file entries in \p
1167  * unsaved_files.
1168  *
1169  * \param unsaved_files the files that have not yet been saved to disk
1170  * but may be required for code completion, including the contents of
1171  * those files. The contents and name of these files (as specified by
1172  * CXUnsavedFile) are copied when necessary, so the client only needs to
1173  * guarantee their validity until the call to this function returns.
1174  */
1176  CXIndex CIdx,
1177  const char *source_filename,
1178  int num_clang_command_line_args,
1179  const char * const *clang_command_line_args,
1180  unsigned num_unsaved_files,
1181  struct CXUnsavedFile *unsaved_files);
1182 
1183 /**
1184  * Same as \c clang_createTranslationUnit2, but returns
1185  * the \c CXTranslationUnit instead of an error code. In case of an error this
1186  * routine returns a \c NULL \c CXTranslationUnit, without further detailed
1187  * error codes.
1188  */
1190  CXIndex CIdx,
1191  const char *ast_filename);
1192 
1193 /**
1194  * Create a translation unit from an AST file (\c -emit-ast).
1195  *
1196  * \param[out] out_TU A non-NULL pointer to store the created
1197  * \c CXTranslationUnit.
1198  *
1199  * \returns Zero on success, otherwise returns an error code.
1200  */
1202  CXIndex CIdx,
1203  const char *ast_filename,
1204  CXTranslationUnit *out_TU);
1205 
1206 /**
1207  * Flags that control the creation of translation units.
1208  *
1209  * The enumerators in this enumeration type are meant to be bitwise
1210  * ORed together to specify which options should be used when
1211  * constructing the translation unit.
1212  */
1214  /**
1215  * Used to indicate that no special translation-unit options are
1216  * needed.
1217  */
1219 
1220  /**
1221  * Used to indicate that the parser should construct a "detailed"
1222  * preprocessing record, including all macro definitions and instantiations.
1223  *
1224  * Constructing a detailed preprocessing record requires more memory
1225  * and time to parse, since the information contained in the record
1226  * is usually not retained. However, it can be useful for
1227  * applications that require more detailed information about the
1228  * behavior of the preprocessor.
1229  */
1231 
1232  /**
1233  * Used to indicate that the translation unit is incomplete.
1234  *
1235  * When a translation unit is considered "incomplete", semantic
1236  * analysis that is typically performed at the end of the
1237  * translation unit will be suppressed. For example, this suppresses
1238  * the completion of tentative declarations in C and of
1239  * instantiation of implicitly-instantiation function templates in
1240  * C++. This option is typically used when parsing a header with the
1241  * intent of producing a precompiled header.
1242  */
1244 
1245  /**
1246  * Used to indicate that the translation unit should be built with an
1247  * implicit precompiled header for the preamble.
1248  *
1249  * An implicit precompiled header is used as an optimization when a
1250  * particular translation unit is likely to be reparsed many times
1251  * when the sources aren't changing that often. In this case, an
1252  * implicit precompiled header will be built containing all of the
1253  * initial includes at the top of the main file (what we refer to as
1254  * the "preamble" of the file). In subsequent parses, if the
1255  * preamble or the files in it have not changed, \c
1256  * clang_reparseTranslationUnit() will re-use the implicit
1257  * precompiled header to improve parsing performance.
1258  */
1260 
1261  /**
1262  * Used to indicate that the translation unit should cache some
1263  * code-completion results with each reparse of the source file.
1264  *
1265  * Caching of code-completion results is a performance optimization that
1266  * introduces some overhead to reparsing but improves the performance of
1267  * code-completion operations.
1268  */
1270 
1271  /**
1272  * Used to indicate that the translation unit will be serialized with
1273  * \c clang_saveTranslationUnit.
1274  *
1275  * This option is typically used when parsing a header with the intent of
1276  * producing a precompiled header.
1277  */
1279 
1280  /**
1281  * DEPRECATED: Enabled chained precompiled preambles in C++.
1282  *
1283  * Note: this is a *temporary* option that is available only while
1284  * we are testing C++ precompiled preamble support. It is deprecated.
1285  */
1287 
1288  /**
1289  * Used to indicate that function/method bodies should be skipped while
1290  * parsing.
1291  *
1292  * This option can be used to search for declarations/definitions while
1293  * ignoring the usages.
1294  */
1296 
1297  /**
1298  * Used to indicate that brief documentation comments should be
1299  * included into the set of code completions returned from this translation
1300  * unit.
1301  */
1303 
1304  /**
1305  * Used to indicate that the precompiled preamble should be created on
1306  * the first parse. Otherwise it will be created on the first reparse. This
1307  * trades runtime on the first parse (serializing the preamble takes time) for
1308  * reduced runtime on the second parse (can now reuse the preamble).
1309  */
1311 
1312  /**
1313  * Do not stop processing when fatal errors are encountered.
1314  *
1315  * When fatal errors are encountered while parsing a translation unit,
1316  * semantic analysis is typically stopped early when compiling code. A common
1317  * source for fatal errors are unresolvable include files. For the
1318  * purposes of an IDE, this is undesirable behavior and as much information
1319  * as possible should be reported. Use this flag to enable this behavior.
1320  */
1322 
1323  /**
1324  * Sets the preprocessor in a mode for parsing a single file only.
1325  */
1327 
1328  /**
1329  * Used in combination with CXTranslationUnit_SkipFunctionBodies to
1330  * constrain the skipping of function bodies to the preamble.
1331  *
1332  * The function bodies of the main file are not skipped.
1333  */
1335 
1336  /**
1337  * Used to indicate that attributed types should be included in CXType.
1338  */
1340 
1341  /**
1342  * Used to indicate that implicit attributes should be visited.
1343  */
1345 };
1346 
1347 /**
1348  * Returns the set of flags that is suitable for parsing a translation
1349  * unit that is being edited.
1350  *
1351  * The set of flags returned provide options for \c clang_parseTranslationUnit()
1352  * to indicate that the translation unit is likely to be reparsed many times,
1353  * either explicitly (via \c clang_reparseTranslationUnit()) or implicitly
1354  * (e.g., by code completion (\c clang_codeCompletionAt())). The returned flag
1355  * set contains an unspecified set of optimizations (e.g., the precompiled
1356  * preamble) geared toward improving the performance of these routines. The
1357  * set of optimizations enabled may change from one version to the next.
1358  */
1360 
1361 /**
1362  * Same as \c clang_parseTranslationUnit2, but returns
1363  * the \c CXTranslationUnit instead of an error code. In case of an error this
1364  * routine returns a \c NULL \c CXTranslationUnit, without further detailed
1365  * error codes.
1366  */
1367 CINDEX_LINKAGE CXTranslationUnit
1368 clang_parseTranslationUnit(CXIndex CIdx,
1369  const char *source_filename,
1370  const char *const *command_line_args,
1371  int num_command_line_args,
1372  struct CXUnsavedFile *unsaved_files,
1373  unsigned num_unsaved_files,
1374  unsigned options);
1375 
1376 /**
1377  * Parse the given source file and the translation unit corresponding
1378  * to that file.
1379  *
1380  * This routine is the main entry point for the Clang C API, providing the
1381  * ability to parse a source file into a translation unit that can then be
1382  * queried by other functions in the API. This routine accepts a set of
1383  * command-line arguments so that the compilation can be configured in the same
1384  * way that the compiler is configured on the command line.
1385  *
1386  * \param CIdx The index object with which the translation unit will be
1387  * associated.
1388  *
1389  * \param source_filename The name of the source file to load, or NULL if the
1390  * source file is included in \c command_line_args.
1391  *
1392  * \param command_line_args The command-line arguments that would be
1393  * passed to the \c clang executable if it were being invoked out-of-process.
1394  * These command-line options will be parsed and will affect how the translation
1395  * unit is parsed. Note that the following options are ignored: '-c',
1396  * '-emit-ast', '-fsyntax-only' (which is the default), and '-o <output file>'.
1397  *
1398  * \param num_command_line_args The number of command-line arguments in
1399  * \c command_line_args.
1400  *
1401  * \param unsaved_files the files that have not yet been saved to disk
1402  * but may be required for parsing, including the contents of
1403  * those files. The contents and name of these files (as specified by
1404  * CXUnsavedFile) are copied when necessary, so the client only needs to
1405  * guarantee their validity until the call to this function returns.
1406  *
1407  * \param num_unsaved_files the number of unsaved file entries in \p
1408  * unsaved_files.
1409  *
1410  * \param options A bitmask of options that affects how the translation unit
1411  * is managed but not its compilation. This should be a bitwise OR of the
1412  * CXTranslationUnit_XXX flags.
1413  *
1414  * \param[out] out_TU A non-NULL pointer to store the created
1415  * \c CXTranslationUnit, describing the parsed code and containing any
1416  * diagnostics produced by the compiler.
1417  *
1418  * \returns Zero on success, otherwise returns an error code.
1419  */
1421 clang_parseTranslationUnit2(CXIndex CIdx,
1422  const char *source_filename,
1423  const char *const *command_line_args,
1424  int num_command_line_args,
1425  struct CXUnsavedFile *unsaved_files,
1426  unsigned num_unsaved_files,
1427  unsigned options,
1428  CXTranslationUnit *out_TU);
1429 
1430 /**
1431  * Same as clang_parseTranslationUnit2 but requires a full command line
1432  * for \c command_line_args including argv[0]. This is useful if the standard
1433  * library paths are relative to the binary.
1434  */
1436  CXIndex CIdx, const char *source_filename,
1437  const char *const *command_line_args, int num_command_line_args,
1438  struct CXUnsavedFile *unsaved_files, unsigned num_unsaved_files,
1439  unsigned options, CXTranslationUnit *out_TU);
1440 
1441 /**
1442  * Flags that control how translation units are saved.
1443  *
1444  * The enumerators in this enumeration type are meant to be bitwise
1445  * ORed together to specify which options should be used when
1446  * saving the translation unit.
1447  */
1449  /**
1450  * Used to indicate that no special saving options are needed.
1451  */
1453 };
1454 
1455 /**
1456  * Returns the set of flags that is suitable for saving a translation
1457  * unit.
1458  *
1459  * The set of flags returned provide options for
1460  * \c clang_saveTranslationUnit() by default. The returned flag
1461  * set contains an unspecified set of options that save translation units with
1462  * the most commonly-requested data.
1463  */
1464 CINDEX_LINKAGE unsigned clang_defaultSaveOptions(CXTranslationUnit TU);
1465 
1466 /**
1467  * Describes the kind of error that occurred (if any) in a call to
1468  * \c clang_saveTranslationUnit().
1469  */
1471  /**
1472  * Indicates that no error occurred while saving a translation unit.
1473  */
1475 
1476  /**
1477  * Indicates that an unknown error occurred while attempting to save
1478  * the file.
1479  *
1480  * This error typically indicates that file I/O failed when attempting to
1481  * write the file.
1482  */
1484 
1485  /**
1486  * Indicates that errors during translation prevented this attempt
1487  * to save the translation unit.
1488  *
1489  * Errors that prevent the translation unit from being saved can be
1490  * extracted using \c clang_getNumDiagnostics() and \c clang_getDiagnostic().
1491  */
1493 
1494  /**
1495  * Indicates that the translation unit to be saved was somehow
1496  * invalid (e.g., NULL).
1497  */
1499 };
1500 
1501 /**
1502  * Saves a translation unit into a serialized representation of
1503  * that translation unit on disk.
1504  *
1505  * Any translation unit that was parsed without error can be saved
1506  * into a file. The translation unit can then be deserialized into a
1507  * new \c CXTranslationUnit with \c clang_createTranslationUnit() or,
1508  * if it is an incomplete translation unit that corresponds to a
1509  * header, used as a precompiled header when parsing other translation
1510  * units.
1511  *
1512  * \param TU The translation unit to save.
1513  *
1514  * \param FileName The file to which the translation unit will be saved.
1515  *
1516  * \param options A bitmask of options that affects how the translation unit
1517  * is saved. This should be a bitwise OR of the
1518  * CXSaveTranslationUnit_XXX flags.
1519  *
1520  * \returns A value that will match one of the enumerators of the CXSaveError
1521  * enumeration. Zero (CXSaveError_None) indicates that the translation unit was
1522  * saved successfully, while a non-zero value indicates that a problem occurred.
1523  */
1524 CINDEX_LINKAGE int clang_saveTranslationUnit(CXTranslationUnit TU,
1525  const char *FileName,
1526  unsigned options);
1527 
1528 /**
1529  * Suspend a translation unit in order to free memory associated with it.
1530  *
1531  * A suspended translation unit uses significantly less memory but on the other
1532  * side does not support any other calls than \c clang_reparseTranslationUnit
1533  * to resume it or \c clang_disposeTranslationUnit to dispose it completely.
1534  */
1535 CINDEX_LINKAGE unsigned clang_suspendTranslationUnit(CXTranslationUnit);
1536 
1537 /**
1538  * Destroy the specified CXTranslationUnit object.
1539  */
1540 CINDEX_LINKAGE void clang_disposeTranslationUnit(CXTranslationUnit);
1541 
1542 /**
1543  * Flags that control the reparsing of translation units.
1544  *
1545  * The enumerators in this enumeration type are meant to be bitwise
1546  * ORed together to specify which options should be used when
1547  * reparsing the translation unit.
1548  */
1550  /**
1551  * Used to indicate that no special reparsing options are needed.
1552  */
1554 };
1555 
1556 /**
1557  * Returns the set of flags that is suitable for reparsing a translation
1558  * unit.
1559  *
1560  * The set of flags returned provide options for
1561  * \c clang_reparseTranslationUnit() by default. The returned flag
1562  * set contains an unspecified set of optimizations geared toward common uses
1563  * of reparsing. The set of optimizations enabled may change from one version
1564  * to the next.
1565  */
1566 CINDEX_LINKAGE unsigned clang_defaultReparseOptions(CXTranslationUnit TU);
1567 
1568 /**
1569  * Reparse the source files that produced this translation unit.
1570  *
1571  * This routine can be used to re-parse the source files that originally
1572  * created the given translation unit, for example because those source files
1573  * have changed (either on disk or as passed via \p unsaved_files). The
1574  * source code will be reparsed with the same command-line options as it
1575  * was originally parsed.
1576  *
1577  * Reparsing a translation unit invalidates all cursors and source locations
1578  * that refer into that translation unit. This makes reparsing a translation
1579  * unit semantically equivalent to destroying the translation unit and then
1580  * creating a new translation unit with the same command-line arguments.
1581  * However, it may be more efficient to reparse a translation
1582  * unit using this routine.
1583  *
1584  * \param TU The translation unit whose contents will be re-parsed. The
1585  * translation unit must originally have been built with
1586  * \c clang_createTranslationUnitFromSourceFile().
1587  *
1588  * \param num_unsaved_files The number of unsaved file entries in \p
1589  * unsaved_files.
1590  *
1591  * \param unsaved_files The files that have not yet been saved to disk
1592  * but may be required for parsing, including the contents of
1593  * those files. The contents and name of these files (as specified by
1594  * CXUnsavedFile) are copied when necessary, so the client only needs to
1595  * guarantee their validity until the call to this function returns.
1596  *
1597  * \param options A bitset of options composed of the flags in CXReparse_Flags.
1598  * The function \c clang_defaultReparseOptions() produces a default set of
1599  * options recommended for most uses, based on the translation unit.
1600  *
1601  * \returns 0 if the sources could be reparsed. A non-zero error code will be
1602  * returned if reparsing was impossible, such that the translation unit is
1603  * invalid. In such cases, the only valid call for \c TU is
1604  * \c clang_disposeTranslationUnit(TU). The error codes returned by this
1605  * routine are described by the \c CXErrorCode enum.
1606  */
1607 CINDEX_LINKAGE int clang_reparseTranslationUnit(CXTranslationUnit TU,
1608  unsigned num_unsaved_files,
1609  struct CXUnsavedFile *unsaved_files,
1610  unsigned options);
1611 
1612 /**
1613  * Categorizes how memory is being used by a translation unit.
1614  */
1633 
1636 };
1637 
1638 /**
1639  * Returns the human-readable null-terminated C string that represents
1640  * the name of the memory category. This string should never be freed.
1641  */
1644 
1645 typedef struct CXTUResourceUsageEntry {
1646  /* The memory usage category. */
1648  /* Amount of resources used.
1649  The units will depend on the resource kind. */
1650  unsigned long amount;
1652 
1653 /**
1654  * The memory usage of a CXTranslationUnit, broken into categories.
1655  */
1656 typedef struct CXTUResourceUsage {
1657  /* Private data member, used for queries. */
1658  void *data;
1659 
1660  /* The number of entries in the 'entries' array. */
1661  unsigned numEntries;
1662 
1663  /* An array of key-value pairs, representing the breakdown of memory
1664  usage. */
1666 
1668 
1669 /**
1670  * Return the memory usage of a translation unit. This object
1671  * should be released with clang_disposeCXTUResourceUsage().
1672  */
1674 
1676 
1677 /**
1678  * Get target information for this translation unit.
1679  *
1680  * The CXTargetInfo object cannot outlive the CXTranslationUnit object.
1681  */
1682 CINDEX_LINKAGE CXTargetInfo
1683 clang_getTranslationUnitTargetInfo(CXTranslationUnit CTUnit);
1684 
1685 /**
1686  * Destroy the CXTargetInfo object.
1687  */
1688 CINDEX_LINKAGE void
1689 clang_TargetInfo_dispose(CXTargetInfo Info);
1690 
1691 /**
1692  * Get the normalized target triple as a string.
1693  *
1694  * Returns the empty string in case of any error.
1695  */
1697 clang_TargetInfo_getTriple(CXTargetInfo Info);
1698 
1699 /**
1700  * Get the pointer width of the target in bits.
1701  *
1702  * Returns -1 in case of error.
1703  */
1704 CINDEX_LINKAGE int
1705 clang_TargetInfo_getPointerWidth(CXTargetInfo Info);
1706 
1707 /**
1708  * @}
1709  */
1710 
1711 /**
1712  * Describes the kind of entity that a cursor refers to.
1713  */
1715  /* Declarations */
1716  /**
1717  * A declaration whose specific kind is not exposed via this
1718  * interface.
1719  *
1720  * Unexposed declarations have the same operations as any other kind
1721  * of declaration; one can extract their location information,
1722  * spelling, find their definitions, etc. However, the specific kind
1723  * of the declaration is not reported.
1724  */
1726  /** A C or C++ struct. */
1728  /** A C or C++ union. */
1730  /** A C++ class. */
1732  /** An enumeration. */
1734  /**
1735  * A field (in C) or non-static data member (in C++) in a
1736  * struct, union, or C++ class.
1737  */
1739  /** An enumerator constant. */
1741  /** A function. */
1743  /** A variable. */
1745  /** A function or method parameter. */
1747  /** An Objective-C \@interface. */
1749  /** An Objective-C \@interface for a category. */
1751  /** An Objective-C \@protocol declaration. */
1753  /** An Objective-C \@property declaration. */
1755  /** An Objective-C instance variable. */
1757  /** An Objective-C instance method. */
1759  /** An Objective-C class method. */
1761  /** An Objective-C \@implementation. */
1763  /** An Objective-C \@implementation for a category. */
1765  /** A typedef. */
1767  /** A C++ class method. */
1769  /** A C++ namespace. */
1771  /** A linkage specification, e.g. 'extern "C"'. */
1773  /** A C++ constructor. */
1775  /** A C++ destructor. */
1777  /** A C++ conversion function. */
1779  /** A C++ template type parameter. */
1781  /** A C++ non-type template parameter. */
1783  /** A C++ template template parameter. */
1785  /** A C++ function template. */
1787  /** A C++ class template. */
1789  /** A C++ class template partial specialization. */
1791  /** A C++ namespace alias declaration. */
1793  /** A C++ using directive. */
1795  /** A C++ using declaration. */
1797  /** A C++ alias declaration */
1799  /** An Objective-C \@synthesize definition. */
1801  /** An Objective-C \@dynamic definition. */
1803  /** An access specifier. */
1805 
1808 
1809  /* References */
1810  CXCursor_FirstRef = 40, /* Decl references */
1814  /**
1815  * A reference to a type declaration.
1816  *
1817  * A type reference occurs anywhere where a type is named but not
1818  * declared. For example, given:
1819  *
1820  * \code
1821  * typedef unsigned size_type;
1822  * size_type size;
1823  * \endcode
1824  *
1825  * The typedef is a declaration of size_type (CXCursor_TypedefDecl),
1826  * while the type of the variable "size" is referenced. The cursor
1827  * referenced by the type of size is the typedef for size_type.
1828  */
1831  /**
1832  * A reference to a class template, function template, template
1833  * template parameter, or class template partial specialization.
1834  */
1836  /**
1837  * A reference to a namespace or namespace alias.
1838  */
1840  /**
1841  * A reference to a member of a struct, union, or class that occurs in
1842  * some non-expression context, e.g., a designated initializer.
1843  */
1845  /**
1846  * A reference to a labeled statement.
1847  *
1848  * This cursor kind is used to describe the jump to "start_over" in the
1849  * goto statement in the following example:
1850  *
1851  * \code
1852  * start_over:
1853  * ++counter;
1854  *
1855  * goto start_over;
1856  * \endcode
1857  *
1858  * A label reference cursor refers to a label statement.
1859  */
1861 
1862  /**
1863  * A reference to a set of overloaded functions or function templates
1864  * that has not yet been resolved to a specific function or function template.
1865  *
1866  * An overloaded declaration reference cursor occurs in C++ templates where
1867  * a dependent name refers to a function. For example:
1868  *
1869  * \code
1870  * template<typename T> void swap(T&, T&);
1871  *
1872  * struct X { ... };
1873  * void swap(X&, X&);
1874  *
1875  * template<typename T>
1876  * void reverse(T* first, T* last) {
1877  * while (first < last - 1) {
1878  * swap(*first, *--last);
1879  * ++first;
1880  * }
1881  * }
1882  *
1883  * struct Y { };
1884  * void swap(Y&, Y&);
1885  * \endcode
1886  *
1887  * Here, the identifier "swap" is associated with an overloaded declaration
1888  * reference. In the template definition, "swap" refers to either of the two
1889  * "swap" functions declared above, so both results will be available. At
1890  * instantiation time, "swap" may also refer to other functions found via
1891  * argument-dependent lookup (e.g., the "swap" function at the end of the
1892  * example).
1893  *
1894  * The functions \c clang_getNumOverloadedDecls() and
1895  * \c clang_getOverloadedDecl() can be used to retrieve the definitions
1896  * referenced by this cursor.
1897  */
1899 
1900  /**
1901  * A reference to a variable that occurs in some non-expression
1902  * context, e.g., a C++ lambda capture list.
1903  */
1905 
1907 
1908  /* Error conditions */
1915 
1916  /* Expressions */
1918 
1919  /**
1920  * An expression whose specific kind is not exposed via this
1921  * interface.
1922  *
1923  * Unexposed expressions have the same operations as any other kind
1924  * of expression; one can extract their location information,
1925  * spelling, children, etc. However, the specific kind of the
1926  * expression is not reported.
1927  */
1929 
1930  /**
1931  * An expression that refers to some value declaration, such
1932  * as a function, variable, or enumerator.
1933  */
1935 
1936  /**
1937  * An expression that refers to a member of a struct, union,
1938  * class, Objective-C class, etc.
1939  */
1941 
1942  /** An expression that calls a function. */
1944 
1945  /** An expression that sends a message to an Objective-C
1946  object or class. */
1948 
1949  /** An expression that represents a block literal. */
1951 
1952  /** An integer literal.
1953  */
1955 
1956  /** A floating point number literal.
1957  */
1959 
1960  /** An imaginary number literal.
1961  */
1963 
1964  /** A string literal.
1965  */
1967 
1968  /** A character literal.
1969  */
1971 
1972  /** A parenthesized expression, e.g. "(1)".
1973  *
1974  * This AST node is only formed if full location information is requested.
1975  */
1977 
1978  /** This represents the unary-expression's (except sizeof and
1979  * alignof).
1980  */
1982 
1983  /** [C99 6.5.2.1] Array Subscripting.
1984  */
1986 
1987  /** A builtin binary operation expression such as "x + y" or
1988  * "x <= y".
1989  */
1991 
1992  /** Compound assignment such as "+=".
1993  */
1995 
1996  /** The ?: ternary operator.
1997  */
1999 
2000  /** An explicit cast in C (C99 6.5.4) or a C-style cast in C++
2001  * (C++ [expr.cast]), which uses the syntax (Type)expr.
2002  *
2003  * For example: (int)f.
2004  */
2006 
2007  /** [C99 6.5.2.5]
2008  */
2010 
2011  /** Describes an C or C++ initializer list.
2012  */
2014 
2015  /** The GNU address of label extension, representing &&label.
2016  */
2018 
2019  /** This is the GNU Statement Expression extension: ({int X=4; X;})
2020  */
2022 
2023  /** Represents a C11 generic selection.
2024  */
2026 
2027  /** Implements the GNU __null extension, which is a name for a null
2028  * pointer constant that has integral type (e.g., int or long) and is the same
2029  * size and alignment as a pointer.
2030  *
2031  * The __null extension is typically only used by system headers, which define
2032  * NULL as __null in C++ rather than using 0 (which is an integer that may not
2033  * match the size of a pointer).
2034  */
2036 
2037  /** C++'s static_cast<> expression.
2038  */
2040 
2041  /** C++'s dynamic_cast<> expression.
2042  */
2044 
2045  /** C++'s reinterpret_cast<> expression.
2046  */
2048 
2049  /** C++'s const_cast<> expression.
2050  */
2052 
2053  /** Represents an explicit C++ type conversion that uses "functional"
2054  * notion (C++ [expr.type.conv]).
2055  *
2056  * Example:
2057  * \code
2058  * x = int(0.5);
2059  * \endcode
2060  */
2062 
2063  /** A C++ typeid expression (C++ [expr.typeid]).
2064  */
2066 
2067  /** [C++ 2.13.5] C++ Boolean Literal.
2068  */
2070 
2071  /** [C++0x 2.14.7] C++ Pointer Literal.
2072  */
2074 
2075  /** Represents the "this" expression in C++
2076  */
2078 
2079  /** [C++ 15] C++ Throw Expression.
2080  *
2081  * This handles 'throw' and 'throw' assignment-expression. When
2082  * assignment-expression isn't present, Op will be null.
2083  */
2085 
2086  /** A new expression for memory allocation and constructor calls, e.g:
2087  * "new CXXNewExpr(foo)".
2088  */
2090 
2091  /** A delete expression for memory deallocation and destructor calls,
2092  * e.g. "delete[] pArray".
2093  */
2095 
2096  /** A unary expression. (noexcept, sizeof, or other traits)
2097  */
2099 
2100  /** An Objective-C string literal i.e. @"foo".
2101  */
2103 
2104  /** An Objective-C \@encode expression.
2105  */
2107 
2108  /** An Objective-C \@selector expression.
2109  */
2111 
2112  /** An Objective-C \@protocol expression.
2113  */
2115 
2116  /** An Objective-C "bridged" cast expression, which casts between
2117  * Objective-C pointers and C pointers, transferring ownership in the process.
2118  *
2119  * \code
2120  * NSString *str = (__bridge_transfer NSString *)CFCreateString();
2121  * \endcode
2122  */
2124 
2125  /** Represents a C++0x pack expansion that produces a sequence of
2126  * expressions.
2127  *
2128  * A pack expansion expression contains a pattern (which itself is an
2129  * expression) followed by an ellipsis. For example:
2130  *
2131  * \code
2132  * template<typename F, typename ...Types>
2133  * void forward(F f, Types &&...args) {
2134  * f(static_cast<Types&&>(args)...);
2135  * }
2136  * \endcode
2137  */
2139 
2140  /** Represents an expression that computes the length of a parameter
2141  * pack.
2142  *
2143  * \code
2144  * template<typename ...Types>
2145  * struct count {
2146  * static const unsigned value = sizeof...(Types);
2147  * };
2148  * \endcode
2149  */
2151 
2152  /* Represents a C++ lambda expression that produces a local function
2153  * object.
2154  *
2155  * \code
2156  * void abssort(float *x, unsigned N) {
2157  * std::sort(x, x + N,
2158  * [](float a, float b) {
2159  * return std::abs(a) < std::abs(b);
2160  * });
2161  * }
2162  * \endcode
2163  */
2165 
2166  /** Objective-c Boolean Literal.
2167  */
2169 
2170  /** Represents the "self" expression in an Objective-C method.
2171  */
2173 
2174  /** OpenMP 4.0 [2.4, Array Section].
2175  */
2177 
2178  /** Represents an @available(...) check.
2179  */
2181 
2182  /**
2183  * Fixed point literal
2184  */
2186 
2188 
2189  /* Statements */
2191  /**
2192  * A statement whose specific kind is not exposed via this
2193  * interface.
2194  *
2195  * Unexposed statements have the same operations as any other kind of
2196  * statement; one can extract their location information, spelling,
2197  * children, etc. However, the specific kind of the statement is not
2198  * reported.
2199  */
2201 
2202  /** A labelled statement in a function.
2203  *
2204  * This cursor kind is used to describe the "start_over:" label statement in
2205  * the following example:
2206  *
2207  * \code
2208  * start_over:
2209  * ++counter;
2210  * \endcode
2211  *
2212  */
2214 
2215  /** A group of statements like { stmt stmt }.
2216  *
2217  * This cursor kind is used to describe compound statements, e.g. function
2218  * bodies.
2219  */
2221 
2222  /** A case statement.
2223  */
2225 
2226  /** A default statement.
2227  */
2229 
2230  /** An if statement
2231  */
2233 
2234  /** A switch statement.
2235  */
2237 
2238  /** A while statement.
2239  */
2241 
2242  /** A do statement.
2243  */
2245 
2246  /** A for statement.
2247  */
2249 
2250  /** A goto statement.
2251  */
2253 
2254  /** An indirect goto statement.
2255  */
2257 
2258  /** A continue statement.
2259  */
2261 
2262  /** A break statement.
2263  */
2265 
2266  /** A return statement.
2267  */
2269 
2270  /** A GCC inline assembly statement extension.
2271  */
2274 
2275  /** Objective-C's overall \@try-\@catch-\@finally statement.
2276  */
2278 
2279  /** Objective-C's \@catch statement.
2280  */
2282 
2283  /** Objective-C's \@finally statement.
2284  */
2286 
2287  /** Objective-C's \@throw statement.
2288  */
2290 
2291  /** Objective-C's \@synchronized statement.
2292  */
2294 
2295  /** Objective-C's autorelease pool statement.
2296  */
2298 
2299  /** Objective-C's collection statement.
2300  */
2302 
2303  /** C++'s catch statement.
2304  */
2306 
2307  /** C++'s try statement.
2308  */
2310 
2311  /** C++'s for (* : *) statement.
2312  */
2314 
2315  /** Windows Structured Exception Handling's try statement.
2316  */
2318 
2319  /** Windows Structured Exception Handling's except statement.
2320  */
2322 
2323  /** Windows Structured Exception Handling's finally statement.
2324  */
2326 
2327  /** A MS inline assembly statement extension.
2328  */
2330 
2331  /** The null statement ";": C99 6.8.3p3.
2332  *
2333  * This cursor kind is used to describe the null statement.
2334  */
2336 
2337  /** Adaptor class for mixing declarations with statements and
2338  * expressions.
2339  */
2341 
2342  /** OpenMP parallel directive.
2343  */
2345 
2346  /** OpenMP SIMD directive.
2347  */
2349 
2350  /** OpenMP for directive.
2351  */
2353 
2354  /** OpenMP sections directive.
2355  */
2357 
2358  /** OpenMP section directive.
2359  */
2361 
2362  /** OpenMP single directive.
2363  */
2365 
2366  /** OpenMP parallel for directive.
2367  */
2369 
2370  /** OpenMP parallel sections directive.
2371  */
2373 
2374  /** OpenMP task directive.
2375  */
2377 
2378  /** OpenMP master directive.
2379  */
2381 
2382  /** OpenMP critical directive.
2383  */
2385 
2386  /** OpenMP taskyield directive.
2387  */
2389 
2390  /** OpenMP barrier directive.
2391  */
2393 
2394  /** OpenMP taskwait directive.
2395  */
2397 
2398  /** OpenMP flush directive.
2399  */
2401 
2402  /** Windows Structured Exception Handling's leave statement.
2403  */
2405 
2406  /** OpenMP ordered directive.
2407  */
2409 
2410  /** OpenMP atomic directive.
2411  */
2413 
2414  /** OpenMP for SIMD directive.
2415  */
2417 
2418  /** OpenMP parallel for SIMD directive.
2419  */
2421 
2422  /** OpenMP target directive.
2423  */
2425 
2426  /** OpenMP teams directive.
2427  */
2429 
2430  /** OpenMP taskgroup directive.
2431  */
2433 
2434  /** OpenMP cancellation point directive.
2435  */
2437 
2438  /** OpenMP cancel directive.
2439  */
2441 
2442  /** OpenMP target data directive.
2443  */
2445 
2446  /** OpenMP taskloop directive.
2447  */
2449 
2450  /** OpenMP taskloop simd directive.
2451  */
2453 
2454  /** OpenMP distribute directive.
2455  */
2457 
2458  /** OpenMP target enter data directive.
2459  */
2461 
2462  /** OpenMP target exit data directive.
2463  */
2465 
2466  /** OpenMP target parallel directive.
2467  */
2469 
2470  /** OpenMP target parallel for directive.
2471  */
2473 
2474  /** OpenMP target update directive.
2475  */
2477 
2478  /** OpenMP distribute parallel for directive.
2479  */
2481 
2482  /** OpenMP distribute parallel for simd directive.
2483  */
2485 
2486  /** OpenMP distribute simd directive.
2487  */
2489 
2490  /** OpenMP target parallel for simd directive.
2491  */
2493 
2494  /** OpenMP target simd directive.
2495  */
2497 
2498  /** OpenMP teams distribute directive.
2499  */
2501 
2502  /** OpenMP teams distribute simd directive.
2503  */
2505 
2506  /** OpenMP teams distribute parallel for simd directive.
2507  */
2509 
2510  /** OpenMP teams distribute parallel for directive.
2511  */
2513 
2514  /** OpenMP target teams directive.
2515  */
2517 
2518  /** OpenMP target teams distribute directive.
2519  */
2521 
2522  /** OpenMP target teams distribute parallel for directive.
2523  */
2525 
2526  /** OpenMP target teams distribute parallel for simd directive.
2527  */
2529 
2530  /** OpenMP target teams distribute simd directive.
2531  */
2533 
2535 
2536  /**
2537  * Cursor that represents the translation unit itself.
2538  *
2539  * The translation unit cursor exists primarily to act as the root
2540  * cursor for traversing the contents of a translation unit.
2541  */
2543 
2544  /* Attributes */
2546  /**
2547  * An attribute whose specific kind is not exposed via this
2548  * interface.
2549  */
2551 
2590 
2591  /* Preprocessing */
2599 
2600  /* Extra Declarations */
2601  /**
2602  * A module import declaration.
2603  */
2606  /**
2607  * A static_assert or _Static_assert node
2608  */
2610  /**
2611  * a friend declaration.
2612  */
2616 
2617  /**
2618  * A code completion overload candidate.
2619  */
2621 };
2622 
2623 /**
2624  * A cursor representing some element in the abstract syntax tree for
2625  * a translation unit.
2626  *
2627  * The cursor abstraction unifies the different kinds of entities in a
2628  * program--declaration, statements, expressions, references to declarations,
2629  * etc.--under a single "cursor" abstraction with a common set of operations.
2630  * Common operation for a cursor include: getting the physical location in
2631  * a source file where the cursor points, getting the name associated with a
2632  * cursor, and retrieving cursors for any child nodes of a particular cursor.
2633  *
2634  * Cursors can be produced in two specific ways.
2635  * clang_getTranslationUnitCursor() produces a cursor for a translation unit,
2636  * from which one can use clang_visitChildren() to explore the rest of the
2637  * translation unit. clang_getCursor() maps from a physical source location
2638  * to the entity that resides at that location, allowing one to map from the
2639  * source code into the AST.
2640  */
2641 typedef struct {
2643  int xdata;
2644  const void *data[3];
2645 } CXCursor;
2646 
2647 /**
2648  * \defgroup CINDEX_CURSOR_MANIP Cursor manipulations
2649  *
2650  * @{
2651  */
2652 
2653 /**
2654  * Retrieve the NULL cursor, which represents no entity.
2655  */
2657 
2658 /**
2659  * Retrieve the cursor that represents the given translation unit.
2660  *
2661  * The translation unit cursor can be used to start traversing the
2662  * various declarations within the given translation unit.
2663  */
2665 
2666 /**
2667  * Determine whether two cursors are equivalent.
2668  */
2670 
2671 /**
2672  * Returns non-zero if \p cursor is null.
2673  */
2675 
2676 /**
2677  * Compute a hash value for the given cursor.
2678  */
2680 
2681 /**
2682  * Retrieve the kind of the given cursor.
2683  */
2685 
2686 /**
2687  * Determine whether the given cursor kind represents a declaration.
2688  */
2690 
2691 /**
2692  * Determine whether the given declaration is invalid.
2693  *
2694  * A declaration is invalid if it could not be parsed successfully.
2695  *
2696  * \returns non-zero if the cursor represents a declaration and it is
2697  * invalid, otherwise NULL.
2698  */
2700 
2701 /**
2702  * Determine whether the given cursor kind represents a simple
2703  * reference.
2704  *
2705  * Note that other kinds of cursors (such as expressions) can also refer to
2706  * other cursors. Use clang_getCursorReferenced() to determine whether a
2707  * particular cursor refers to another entity.
2708  */
2710 
2711 /**
2712  * Determine whether the given cursor kind represents an expression.
2713  */
2715 
2716 /**
2717  * Determine whether the given cursor kind represents a statement.
2718  */
2720 
2721 /**
2722  * Determine whether the given cursor kind represents an attribute.
2723  */
2725 
2726 /**
2727  * Determine whether the given cursor has any attributes.
2728  */
2730 
2731 /**
2732  * Determine whether the given cursor kind represents an invalid
2733  * cursor.
2734  */
2736 
2737 /**
2738  * Determine whether the given cursor kind represents a translation
2739  * unit.
2740  */
2742 
2743 /***
2744  * Determine whether the given cursor represents a preprocessing
2745  * element, such as a preprocessor directive or macro instantiation.
2746  */
2748 
2749 /***
2750  * Determine whether the given cursor represents a currently
2751  * unexposed piece of the AST (e.g., CXCursor_UnexposedStmt).
2752  */
2754 
2755 /**
2756  * Describe the linkage of the entity referred to by a cursor.
2757  */
2759  /** This value indicates that no linkage information is available
2760  * for a provided CXCursor. */
2762  /**
2763  * This is the linkage for variables, parameters, and so on that
2764  * have automatic storage. This covers normal (non-extern) local variables.
2765  */
2767  /** This is the linkage for static variables and static functions. */
2769  /** This is the linkage for entities with external linkage that live
2770  * in C++ anonymous namespaces.*/
2772  /** This is the linkage for entities with true, external linkage. */
2774 };
2775 
2776 /**
2777  * Determine the linkage of the entity referred to by a given cursor.
2778  */
2780 
2782  /** This value indicates that no visibility information is available
2783  * for a provided CXCursor. */
2785 
2786  /** Symbol not seen by the linker. */
2788  /** Symbol seen by the linker but resolves to a symbol inside this object. */
2790  /** Symbol seen by the linker and acts like a normal symbol. */
2792 };
2793 
2794 /**
2795  * Describe the visibility of the entity referred to by a cursor.
2796  *
2797  * This returns the default visibility if not explicitly specified by
2798  * a visibility attribute. The default visibility may be changed by
2799  * commandline arguments.
2800  *
2801  * \param cursor The cursor to query.
2802  *
2803  * \returns The visibility of the cursor.
2804  */
2806 
2807 /**
2808  * Determine the availability of the entity that this cursor refers to,
2809  * taking the current target platform into account.
2810  *
2811  * \param cursor The cursor to query.
2812  *
2813  * \returns The availability of the cursor.
2814  */
2817 
2818 /**
2819  * Describes the availability of a given entity on a particular platform, e.g.,
2820  * a particular class might only be available on Mac OS 10.7 or newer.
2821  */
2822 typedef struct CXPlatformAvailability {
2823  /**
2824  * A string that describes the platform for which this structure
2825  * provides availability information.
2826  *
2827  * Possible values are "ios" or "macos".
2828  */
2830  /**
2831  * The version number in which this entity was introduced.
2832  */
2834  /**
2835  * The version number in which this entity was deprecated (but is
2836  * still available).
2837  */
2839  /**
2840  * The version number in which this entity was obsoleted, and therefore
2841  * is no longer available.
2842  */
2844  /**
2845  * Whether the entity is unconditionally unavailable on this platform.
2846  */
2848  /**
2849  * An optional message to provide to a user of this API, e.g., to
2850  * suggest replacement APIs.
2851  */
2854 
2855 /**
2856  * Determine the availability of the entity that this cursor refers to
2857  * on any platforms for which availability information is known.
2858  *
2859  * \param cursor The cursor to query.
2860  *
2861  * \param always_deprecated If non-NULL, will be set to indicate whether the
2862  * entity is deprecated on all platforms.
2863  *
2864  * \param deprecated_message If non-NULL, will be set to the message text
2865  * provided along with the unconditional deprecation of this entity. The client
2866  * is responsible for deallocating this string.
2867  *
2868  * \param always_unavailable If non-NULL, will be set to indicate whether the
2869  * entity is unavailable on all platforms.
2870  *
2871  * \param unavailable_message If non-NULL, will be set to the message text
2872  * provided along with the unconditional unavailability of this entity. The
2873  * client is responsible for deallocating this string.
2874  *
2875  * \param availability If non-NULL, an array of CXPlatformAvailability instances
2876  * that will be populated with platform availability information, up to either
2877  * the number of platforms for which availability information is available (as
2878  * returned by this function) or \c availability_size, whichever is smaller.
2879  *
2880  * \param availability_size The number of elements available in the
2881  * \c availability array.
2882  *
2883  * \returns The number of platforms (N) for which availability information is
2884  * available (which is unrelated to \c availability_size).
2885  *
2886  * Note that the client is responsible for calling
2887  * \c clang_disposeCXPlatformAvailability to free each of the
2888  * platform-availability structures returned. There are
2889  * \c min(N, availability_size) such structures.
2890  */
2891 CINDEX_LINKAGE int
2893  int *always_deprecated,
2894  CXString *deprecated_message,
2895  int *always_unavailable,
2896  CXString *unavailable_message,
2897  CXPlatformAvailability *availability,
2898  int availability_size);
2899 
2900 /**
2901  * Free the memory associated with a \c CXPlatformAvailability structure.
2902  */
2903 CINDEX_LINKAGE void
2905 
2906 /**
2907  * Describe the "language" of the entity referred to by a cursor.
2908  */
2914 };
2915 
2916 /**
2917  * Determine the "language" of the entity referred to by a given cursor.
2918  */
2920 
2921 /**
2922  * Describe the "thread-local storage (TLS) kind" of the declaration
2923  * referred to by a cursor.
2924  */
2929 };
2930 
2931 /**
2932  * Determine the "thread-local storage (TLS) kind" of the declaration
2933  * referred to by a cursor.
2934  */
2936 
2937 /**
2938  * Returns the translation unit that a cursor originated from.
2939  */
2941 
2942 /**
2943  * A fast container representing a set of CXCursors.
2944  */
2945 typedef struct CXCursorSetImpl *CXCursorSet;
2946 
2947 /**
2948  * Creates an empty CXCursorSet.
2949  */
2950 CINDEX_LINKAGE CXCursorSet clang_createCXCursorSet(void);
2951 
2952 /**
2953  * Disposes a CXCursorSet and releases its associated memory.
2954  */
2955 CINDEX_LINKAGE void clang_disposeCXCursorSet(CXCursorSet cset);
2956 
2957 /**
2958  * Queries a CXCursorSet to see if it contains a specific CXCursor.
2959  *
2960  * \returns non-zero if the set contains the specified cursor.
2961 */
2962 CINDEX_LINKAGE unsigned clang_CXCursorSet_contains(CXCursorSet cset,
2963  CXCursor cursor);
2964 
2965 /**
2966  * Inserts a CXCursor into a CXCursorSet.
2967  *
2968  * \returns zero if the CXCursor was already in the set, and non-zero otherwise.
2969 */
2970 CINDEX_LINKAGE unsigned clang_CXCursorSet_insert(CXCursorSet cset,
2971  CXCursor cursor);
2972 
2973 /**
2974  * Determine the semantic parent of the given cursor.
2975  *
2976  * The semantic parent of a cursor is the cursor that semantically contains
2977  * the given \p cursor. For many declarations, the lexical and semantic parents
2978  * are equivalent (the lexical parent is returned by
2979  * \c clang_getCursorLexicalParent()). They diverge when declarations or
2980  * definitions are provided out-of-line. For example:
2981  *
2982  * \code
2983  * class C {
2984  * void f();
2985  * };
2986  *
2987  * void C::f() { }
2988  * \endcode
2989  *
2990  * In the out-of-line definition of \c C::f, the semantic parent is
2991  * the class \c C, of which this function is a member. The lexical parent is
2992  * the place where the declaration actually occurs in the source code; in this
2993  * case, the definition occurs in the translation unit. In general, the
2994  * lexical parent for a given entity can change without affecting the semantics
2995  * of the program, and the lexical parent of different declarations of the
2996  * same entity may be different. Changing the semantic parent of a declaration,
2997  * on the other hand, can have a major impact on semantics, and redeclarations
2998  * of a particular entity should all have the same semantic context.
2999  *
3000  * In the example above, both declarations of \c C::f have \c C as their
3001  * semantic context, while the lexical context of the first \c C::f is \c C
3002  * and the lexical context of the second \c C::f is the translation unit.
3003  *
3004  * For global declarations, the semantic parent is the translation unit.
3005  */
3007 
3008 /**
3009  * Determine the lexical parent of the given cursor.
3010  *
3011  * The lexical parent of a cursor is the cursor in which the given \p cursor
3012  * was actually written. For many declarations, the lexical and semantic parents
3013  * are equivalent (the semantic parent is returned by
3014  * \c clang_getCursorSemanticParent()). They diverge when declarations or
3015  * definitions are provided out-of-line. For example:
3016  *
3017  * \code
3018  * class C {
3019  * void f();
3020  * };
3021  *
3022  * void C::f() { }
3023  * \endcode
3024  *
3025  * In the out-of-line definition of \c C::f, the semantic parent is
3026  * the class \c C, of which this function is a member. The lexical parent is
3027  * the place where the declaration actually occurs in the source code; in this
3028  * case, the definition occurs in the translation unit. In general, the
3029  * lexical parent for a given entity can change without affecting the semantics
3030  * of the program, and the lexical parent of different declarations of the
3031  * same entity may be different. Changing the semantic parent of a declaration,
3032  * on the other hand, can have a major impact on semantics, and redeclarations
3033  * of a particular entity should all have the same semantic context.
3034  *
3035  * In the example above, both declarations of \c C::f have \c C as their
3036  * semantic context, while the lexical context of the first \c C::f is \c C
3037  * and the lexical context of the second \c C::f is the translation unit.
3038  *
3039  * For declarations written in the global scope, the lexical parent is
3040  * the translation unit.
3041  */
3043 
3044 /**
3045  * Determine the set of methods that are overridden by the given
3046  * method.
3047  *
3048  * In both Objective-C and C++, a method (aka virtual member function,
3049  * in C++) can override a virtual method in a base class. For
3050  * Objective-C, a method is said to override any method in the class's
3051  * base class, its protocols, or its categories' protocols, that has the same
3052  * selector and is of the same kind (class or instance).
3053  * If no such method exists, the search continues to the class's superclass,
3054  * its protocols, and its categories, and so on. A method from an Objective-C
3055  * implementation is considered to override the same methods as its
3056  * corresponding method in the interface.
3057  *
3058  * For C++, a virtual member function overrides any virtual member
3059  * function with the same signature that occurs in its base
3060  * classes. With multiple inheritance, a virtual member function can
3061  * override several virtual member functions coming from different
3062  * base classes.
3063  *
3064  * In all cases, this function determines the immediate overridden
3065  * method, rather than all of the overridden methods. For example, if
3066  * a method is originally declared in a class A, then overridden in B
3067  * (which in inherits from A) and also in C (which inherited from B),
3068  * then the only overridden method returned from this function when
3069  * invoked on C's method will be B's method. The client may then
3070  * invoke this function again, given the previously-found overridden
3071  * methods, to map out the complete method-override set.
3072  *
3073  * \param cursor A cursor representing an Objective-C or C++
3074  * method. This routine will compute the set of methods that this
3075  * method overrides.
3076  *
3077  * \param overridden A pointer whose pointee will be replaced with a
3078  * pointer to an array of cursors, representing the set of overridden
3079  * methods. If there are no overridden methods, the pointee will be
3080  * set to NULL. The pointee must be freed via a call to
3081  * \c clang_disposeOverriddenCursors().
3082  *
3083  * \param num_overridden A pointer to the number of overridden
3084  * functions, will be set to the number of overridden functions in the
3085  * array pointed to by \p overridden.
3086  */
3088  CXCursor **overridden,
3089  unsigned *num_overridden);
3090 
3091 /**
3092  * Free the set of overridden cursors returned by \c
3093  * clang_getOverriddenCursors().
3094  */
3096 
3097 /**
3098  * Retrieve the file that is included by the given inclusion directive
3099  * cursor.
3100  */
3102 
3103 /**
3104  * @}
3105  */
3106 
3107 /**
3108  * \defgroup CINDEX_CURSOR_SOURCE Mapping between cursors and source code
3109  *
3110  * Cursors represent a location within the Abstract Syntax Tree (AST). These
3111  * routines help map between cursors and the physical locations where the
3112  * described entities occur in the source code. The mapping is provided in
3113  * both directions, so one can map from source code to the AST and back.
3114  *
3115  * @{
3116  */
3117 
3118 /**
3119  * Map a source location to the cursor that describes the entity at that
3120  * location in the source code.
3121  *
3122  * clang_getCursor() maps an arbitrary source location within a translation
3123  * unit down to the most specific cursor that describes the entity at that
3124  * location. For example, given an expression \c x + y, invoking
3125  * clang_getCursor() with a source location pointing to "x" will return the
3126  * cursor for "x"; similarly for "y". If the cursor points anywhere between
3127  * "x" or "y" (e.g., on the + or the whitespace around it), clang_getCursor()
3128  * will return a cursor referring to the "+" expression.
3129  *
3130  * \returns a cursor representing the entity at the given source location, or
3131  * a NULL cursor if no such entity can be found.
3132  */
3134 
3135 /**
3136  * Retrieve the physical location of the source constructor referenced
3137  * by the given cursor.
3138  *
3139  * The location of a declaration is typically the location of the name of that
3140  * declaration, where the name of that declaration would occur if it is
3141  * unnamed, or some keyword that introduces that particular declaration.
3142  * The location of a reference is where that reference occurs within the
3143  * source code.
3144  */
3146 
3147 /**
3148  * Retrieve the physical extent of the source construct referenced by
3149  * the given cursor.
3150  *
3151  * The extent of a cursor starts with the file/line/column pointing at the
3152  * first character within the source construct that the cursor refers to and
3153  * ends with the last character within that source construct. For a
3154  * declaration, the extent covers the declaration itself. For a reference,
3155  * the extent covers the location of the reference (e.g., where the referenced
3156  * entity was actually used).
3157  */
3159 
3160 /**
3161  * @}
3162  */
3163 
3164 /**
3165  * \defgroup CINDEX_TYPES Type information for CXCursors
3166  *
3167  * @{
3168  */
3169 
3170 /**
3171  * Describes the kind of type
3172  */
3174  /**
3175  * Represents an invalid type (e.g., where no type is available).
3176  */
3178 
3179  /**
3180  * A type whose specific kind is not exposed via this
3181  * interface.
3182  */
3184 
3185  /* Builtin types */
3225 
3245 
3246  /**
3247  * Represents a type that was referred to using an elaborated type keyword.
3248  *
3249  * E.g., struct S, or via a qualified name, e.g., N::M::type, or both.
3250  */
3252 
3253  /* OpenCL PipeType. */
3255 
3256  /* OpenCL builtin types. */
3297 
3301 
3313 
3315 };
3316 
3317 /**
3318  * Describes the calling convention of a function type
3319  */
3332  /* Alias for compatibility with older versions of API. */
3340 
3343 };
3344 
3345 /**
3346  * The type of an element in the abstract syntax tree.
3347  *
3348  */
3349 typedef struct {
3351  void *data[2];
3352 } CXType;
3353 
3354 /**
3355  * Retrieve the type of a CXCursor (if any).
3356  */
3358 
3359 /**
3360  * Pretty-print the underlying type using the rules of the
3361  * language of the translation unit from which it came.
3362  *
3363  * If the type is invalid, an empty string is returned.
3364  */
3366 
3367 /**
3368  * Retrieve the underlying type of a typedef declaration.
3369  *
3370  * If the cursor does not reference a typedef declaration, an invalid type is
3371  * returned.
3372  */
3374 
3375 /**
3376  * Retrieve the integer type of an enum declaration.
3377  *
3378  * If the cursor does not reference an enum declaration, an invalid type is
3379  * returned.
3380  */
3382 
3383 /**
3384  * Retrieve the integer value of an enum constant declaration as a signed
3385  * long long.
3386  *
3387  * If the cursor does not reference an enum constant declaration, LLONG_MIN is returned.
3388  * Since this is also potentially a valid constant value, the kind of the cursor
3389  * must be verified before calling this function.
3390  */
3392 
3393 /**
3394  * Retrieve the integer value of an enum constant declaration as an unsigned
3395  * long long.
3396  *
3397  * If the cursor does not reference an enum constant declaration, ULLONG_MAX is returned.
3398  * Since this is also potentially a valid constant value, the kind of the cursor
3399  * must be verified before calling this function.
3400  */
3402 
3403 /**
3404  * Retrieve the bit width of a bit field declaration as an integer.
3405  *
3406  * If a cursor that is not a bit field declaration is passed in, -1 is returned.
3407  */
3409 
3410 /**
3411  * Retrieve the number of non-variadic arguments associated with a given
3412  * cursor.
3413  *
3414  * The number of arguments can be determined for calls as well as for
3415  * declarations of functions or methods. For other cursors -1 is returned.
3416  */
3418 
3419 /**
3420  * Retrieve the argument cursor of a function or method.
3421  *
3422  * The argument cursor can be determined for calls as well as for declarations
3423  * of functions or methods. For other cursors and for invalid indices, an
3424  * invalid cursor is returned.
3425  */
3427 
3428 /**
3429  * Describes the kind of a template argument.
3430  *
3431  * See the definition of llvm::clang::TemplateArgument::ArgKind for full
3432  * element descriptions.
3433  */
3444  /* Indicates an error case, preventing the kind from being deduced. */
3446 };
3447 
3448 /**
3449  *Returns the number of template args of a function decl representing a
3450  * template specialization.
3451  *
3452  * If the argument cursor cannot be converted into a template function
3453  * declaration, -1 is returned.
3454  *
3455  * For example, for the following declaration and specialization:
3456  * template <typename T, int kInt, bool kBool>
3457  * void foo() { ... }
3458  *
3459  * template <>
3460  * void foo<float, -7, true>();
3461  *
3462  * The value 3 would be returned from this call.
3463  */
3465 
3466 /**
3467  * Retrieve the kind of the I'th template argument of the CXCursor C.
3468  *
3469  * If the argument CXCursor does not represent a FunctionDecl, an invalid
3470  * template argument kind is returned.
3471  *
3472  * For example, for the following declaration and specialization:
3473  * template <typename T, int kInt, bool kBool>
3474  * void foo() { ... }
3475  *
3476  * template <>
3477  * void foo<float, -7, true>();
3478  *
3479  * For I = 0, 1, and 2, Type, Integral, and Integral will be returned,
3480  * respectively.
3481  */
3483  CXCursor C, unsigned I);
3484 
3485 /**
3486  * Retrieve a CXType representing the type of a TemplateArgument of a
3487  * function decl representing a template specialization.
3488  *
3489  * If the argument CXCursor does not represent a FunctionDecl whose I'th
3490  * template argument has a kind of CXTemplateArgKind_Integral, an invalid type
3491  * is returned.
3492  *
3493  * For example, for the following declaration and specialization:
3494  * template <typename T, int kInt, bool kBool>
3495  * void foo() { ... }
3496  *
3497  * template <>
3498  * void foo<float, -7, true>();
3499  *
3500  * If called with I = 0, "float", will be returned.
3501  * Invalid types will be returned for I == 1 or 2.
3502  */
3504  unsigned I);
3505 
3506 /**
3507  * Retrieve the value of an Integral TemplateArgument (of a function
3508  * decl representing a template specialization) as a signed long long.
3509  *
3510  * It is undefined to call this function on a CXCursor that does not represent a
3511  * FunctionDecl or whose I'th template argument is not an integral value.
3512  *
3513  * For example, for the following declaration and specialization:
3514  * template <typename T, int kInt, bool kBool>
3515  * void foo() { ... }
3516  *
3517  * template <>
3518  * void foo<float, -7, true>();
3519  *
3520  * If called with I = 1 or 2, -7 or true will be returned, respectively.
3521  * For I == 0, this function's behavior is undefined.
3522  */
3524  unsigned I);
3525 
3526 /**
3527  * Retrieve the value of an Integral TemplateArgument (of a function
3528  * decl representing a template specialization) as an unsigned long long.
3529  *
3530  * It is undefined to call this function on a CXCursor that does not represent a
3531  * FunctionDecl or whose I'th template argument is not an integral value.
3532  *
3533  * For example, for the following declaration and specialization:
3534  * template <typename T, int kInt, bool kBool>
3535  * void foo() { ... }
3536  *
3537  * template <>
3538  * void foo<float, 2147483649, true>();
3539  *
3540  * If called with I = 1 or 2, 2147483649 or true will be returned, respectively.
3541  * For I == 0, this function's behavior is undefined.
3542  */
3544  CXCursor C, unsigned I);
3545 
3546 /**
3547  * Determine whether two CXTypes represent the same type.
3548  *
3549  * \returns non-zero if the CXTypes represent the same type and
3550  * zero otherwise.
3551  */
3553 
3554 /**
3555  * Return the canonical type for a CXType.
3556  *
3557  * Clang's type system explicitly models typedefs and all the ways
3558  * a specific type can be represented. The canonical type is the underlying
3559  * type with all the "sugar" removed. For example, if 'T' is a typedef
3560  * for 'int', the canonical type for 'T' would be 'int'.
3561  */
3563 
3564 /**
3565  * Determine whether a CXType has the "const" qualifier set,
3566  * without looking through typedefs that may have added "const" at a
3567  * different level.
3568  */
3570 
3571 /**
3572  * Determine whether a CXCursor that is a macro, is
3573  * function like.
3574  */
3576 
3577 /**
3578  * Determine whether a CXCursor that is a macro, is a
3579  * builtin one.
3580  */
3582 
3583 /**
3584  * Determine whether a CXCursor that is a function declaration, is an
3585  * inline declaration.
3586  */
3588 
3589 /**
3590  * Determine whether a CXType has the "volatile" qualifier set,
3591  * without looking through typedefs that may have added "volatile" at
3592  * a different level.
3593  */
3595 
3596 /**
3597  * Determine whether a CXType has the "restrict" qualifier set,
3598  * without looking through typedefs that may have added "restrict" at a
3599  * different level.
3600  */
3602 
3603 /**
3604  * Returns the address space of the given type.
3605  */
3607 
3608 /**
3609  * Returns the typedef name of the given type.
3610  */
3612 
3613 /**
3614  * For pointer types, returns the type of the pointee.
3615  */
3617 
3618 /**
3619  * Return the cursor for the declaration of the given type.
3620  */
3622 
3623 /**
3624  * Returns the Objective-C type encoding for the specified declaration.
3625  */
3627 
3628 /**
3629  * Returns the Objective-C type encoding for the specified CXType.
3630  */
3632 
3633 /**
3634  * Retrieve the spelling of a given CXTypeKind.
3635  */
3637 
3638 /**
3639  * Retrieve the calling convention associated with a function type.
3640  *
3641  * If a non-function type is passed in, CXCallingConv_Invalid is returned.
3642  */
3644 
3645 /**
3646  * Retrieve the return type associated with a function type.
3647  *
3648  * If a non-function type is passed in, an invalid type is returned.
3649  */
3651 
3652 /**
3653  * Retrieve the exception specification type associated with a function type.
3654  * This is a value of type CXCursor_ExceptionSpecificationKind.
3655  *
3656  * If a non-function type is passed in, an error code of -1 is returned.
3657  */
3659 
3660 /**
3661  * Retrieve the number of non-variadic parameters associated with a
3662  * function type.
3663  *
3664  * If a non-function type is passed in, -1 is returned.
3665  */
3667 
3668 /**
3669  * Retrieve the type of a parameter of a function type.
3670  *
3671  * If a non-function type is passed in or the function does not have enough
3672  * parameters, an invalid type is returned.
3673  */
3675 
3676 /**
3677  * Retrieves the base type of the ObjCObjectType.
3678  *
3679  * If the type is not an ObjC object, an invalid type is returned.
3680  */
3682 
3683 /**
3684  * Retrieve the number of protocol references associated with an ObjC object/id.
3685  *
3686  * If the type is not an ObjC object, 0 is returned.
3687  */
3689 
3690 /**
3691  * Retrieve the decl for a protocol reference for an ObjC object/id.
3692  *
3693  * If the type is not an ObjC object or there are not enough protocol
3694  * references, an invalid cursor is returned.
3695  */
3697 
3698 /**
3699  * Retreive the number of type arguments associated with an ObjC object.
3700  *
3701  * If the type is not an ObjC object, 0 is returned.
3702  */
3704 
3705 /**
3706  * Retrieve a type argument associated with an ObjC object.
3707  *
3708  * If the type is not an ObjC or the index is not valid,
3709  * an invalid type is returned.
3710  */
3712 
3713 /**
3714  * Return 1 if the CXType is a variadic function type, and 0 otherwise.
3715  */
3717 
3718 /**
3719  * Retrieve the return type associated with a given cursor.
3720  *
3721  * This only returns a valid type if the cursor refers to a function or method.
3722  */
3724 
3725 /**
3726  * Retrieve the exception specification type associated with a given cursor.
3727  * This is a value of type CXCursor_ExceptionSpecificationKind.
3728  *
3729  * This only returns a valid result if the cursor refers to a function or method.
3730  */
3732 
3733 /**
3734  * Return 1 if the CXType is a POD (plain old data) type, and 0
3735  * otherwise.
3736  */
3738 
3739 /**
3740  * Return the element type of an array, complex, or vector type.
3741  *
3742  * If a type is passed in that is not an array, complex, or vector type,
3743  * an invalid type is returned.
3744  */
3746 
3747 /**
3748  * Return the number of elements of an array or vector type.
3749  *
3750  * If a type is passed in that is not an array or vector type,
3751  * -1 is returned.
3752  */
3754 
3755 /**
3756  * Return the element type of an array type.
3757  *
3758  * If a non-array type is passed in, an invalid type is returned.
3759  */
3761 
3762 /**
3763  * Return the array size of a constant array.
3764  *
3765  * If a non-array type is passed in, -1 is returned.
3766  */
3768 
3769 /**
3770  * Retrieve the type named by the qualified-id.
3771  *
3772  * If a non-elaborated type is passed in, an invalid type is returned.
3773  */
3775 
3776 /**
3777  * Determine if a typedef is 'transparent' tag.
3778  *
3779  * A typedef is considered 'transparent' if it shares a name and spelling
3780  * location with its underlying tag type, as is the case with the NS_ENUM macro.
3781  *
3782  * \returns non-zero if transparent and zero otherwise.
3783  */
3785 
3787  /**
3788  * Values of this type can never be null.
3789  */
3791  /**
3792  * Values of this type can be null.
3793  */
3795  /**
3796  * Whether values of this type can be null is (explicitly)
3797  * unspecified. This captures a (fairly rare) case where we
3798  * can't conclude anything about the nullability of the type even
3799  * though it has been considered.
3800  */
3802  /**
3803  * Nullability is not applicable to this type.
3804  */
3806 };
3807 
3808 /**
3809  * Retrieve the nullability kind of a pointer type.
3810  */
3812 
3813 /**
3814  * List the possible error codes for \c clang_Type_getSizeOf,
3815  * \c clang_Type_getAlignOf, \c clang_Type_getOffsetOf and
3816  * \c clang_Cursor_getOffsetOf.
3817  *
3818  * A value of this enumeration type can be returned if the target type is not
3819  * a valid argument to sizeof, alignof or offsetof.
3820  */
3822  /**
3823  * Type is of kind CXType_Invalid.
3824  */
3826  /**
3827  * The type is an incomplete Type.
3828  */
3830  /**
3831  * The type is a dependent Type.
3832  */
3834  /**
3835  * The type is not a constant size type.
3836  */
3838  /**
3839  * The Field name is not valid for this record.
3840  */
3842 };
3843 
3844 /**
3845  * Return the alignment of a type in bytes as per C++[expr.alignof]
3846  * standard.
3847  *
3848  * If the type declaration is invalid, CXTypeLayoutError_Invalid is returned.
3849  * If the type declaration is an incomplete type, CXTypeLayoutError_Incomplete
3850  * is returned.
3851  * If the type declaration is a dependent type, CXTypeLayoutError_Dependent is
3852  * returned.
3853  * If the type declaration is not a constant size type,
3854  * CXTypeLayoutError_NotConstantSize is returned.
3855  */
3857 
3858 /**
3859  * Return the class type of an member pointer type.
3860  *
3861  * If a non-member-pointer type is passed in, an invalid type is returned.
3862  */
3864 
3865 /**
3866  * Return the size of a type in bytes as per C++[expr.sizeof] standard.
3867  *
3868  * If the type declaration is invalid, CXTypeLayoutError_Invalid is returned.
3869  * If the type declaration is an incomplete type, CXTypeLayoutError_Incomplete
3870  * is returned.
3871  * If the type declaration is a dependent type, CXTypeLayoutError_Dependent is
3872  * returned.
3873  */
3875 
3876 /**
3877  * Return the offset of a field named S in a record of type T in bits
3878  * as it would be returned by __offsetof__ as per C++11[18.2p4]
3879  *
3880  * If the cursor is not a record field declaration, CXTypeLayoutError_Invalid
3881  * is returned.
3882  * If the field's type declaration is an incomplete type,
3883  * CXTypeLayoutError_Incomplete is returned.
3884  * If the field's type declaration is a dependent type,
3885  * CXTypeLayoutError_Dependent is returned.
3886  * If the field's name S is not found,
3887  * CXTypeLayoutError_InvalidFieldName is returned.
3888  */
3889 CINDEX_LINKAGE long long clang_Type_getOffsetOf(CXType T, const char *S);
3890 
3891 /**
3892  * Return the type that was modified by this attributed type.
3893  *
3894  * If the type is not an attributed type, an invalid type is returned.
3895  */
3897 
3898 /**
3899  * Return the offset of the field represented by the Cursor.
3900  *
3901  * If the cursor is not a field declaration, -1 is returned.
3902  * If the cursor semantic parent is not a record field declaration,
3903  * CXTypeLayoutError_Invalid is returned.
3904  * If the field's type declaration is an incomplete type,
3905  * CXTypeLayoutError_Incomplete is returned.
3906  * If the field's type declaration is a dependent type,
3907  * CXTypeLayoutError_Dependent is returned.
3908  * If the field's name S is not found,
3909  * CXTypeLayoutError_InvalidFieldName is returned.
3910  */
3912 
3913 /**
3914  * Determine whether the given cursor represents an anonymous record
3915  * declaration.
3916  */
3918 
3920  /** No ref-qualifier was provided. */
3922  /** An lvalue ref-qualifier was provided (\c &). */
3924  /** An rvalue ref-qualifier was provided (\c &&). */
3926 };
3927 
3928 /**
3929  * Returns the number of template arguments for given template
3930  * specialization, or -1 if type \c T is not a template specialization.
3931  */
3933 
3934 /**
3935  * Returns the type template argument of a template class specialization
3936  * at given index.
3937  *
3938  * This function only returns template type arguments and does not handle
3939  * template template arguments or variadic packs.
3940  */
3942 
3943 /**
3944  * Retrieve the ref-qualifier kind of a function or method.
3945  *
3946  * The ref-qualifier is returned for C++ functions or methods. For other types
3947  * or non-C++ declarations, CXRefQualifier_None is returned.
3948  */
3950 
3951 /**
3952  * Returns non-zero if the cursor specifies a Record member that is a
3953  * bitfield.
3954  */
3956 
3957 /**
3958  * Returns 1 if the base class specified by the cursor with kind
3959  * CX_CXXBaseSpecifier is virtual.
3960  */
3962 
3963 /**
3964  * Represents the C++ access control level to a base class for a
3965  * cursor with kind CX_CXXBaseSpecifier.
3966  */
3972 };
3973 
3974 /**
3975  * Returns the access control level for the referenced object.
3976  *
3977  * If the cursor refers to a C++ declaration, its access control level within its
3978  * parent scope is returned. Otherwise, if the cursor refers to a base specifier or
3979  * access specifier, the specifier itself is returned.
3980  */
3982 
3983 /**
3984  * Represents the storage classes as declared in the source. CX_SC_Invalid
3985  * was added for the case that the passed cursor in not a declaration.
3986  */
3996 };
3997 
3998 /**
3999  * Returns the storage class for a function or variable declaration.
4000  *
4001  * If the passed in Cursor is not a function or variable declaration,
4002  * CX_SC_Invalid is returned else the storage class.
4003  */
4005 
4006 /**
4007  * Determine the number of overloaded declarations referenced by a
4008  * \c CXCursor_OverloadedDeclRef cursor.
4009  *
4010  * \param cursor The cursor whose overloaded declarations are being queried.
4011  *
4012  * \returns The number of overloaded declarations referenced by \c cursor. If it
4013  * is not a \c CXCursor_OverloadedDeclRef cursor, returns 0.
4014  */
4016 
4017 /**
4018  * Retrieve a cursor for one of the overloaded declarations referenced
4019  * by a \c CXCursor_OverloadedDeclRef cursor.
4020  *
4021  * \param cursor The cursor whose overloaded declarations are being queried.
4022  *
4023  * \param index The zero-based index into the set of overloaded declarations in
4024  * the cursor.
4025  *
4026  * \returns A cursor representing the declaration referenced by the given
4027  * \c cursor at the specified \c index. If the cursor does not have an
4028  * associated set of overloaded declarations, or if the index is out of bounds,
4029  * returns \c clang_getNullCursor();
4030  */
4032  unsigned index);
4033 
4034 /**
4035  * @}
4036  */
4037 
4038 /**
4039  * \defgroup CINDEX_ATTRIBUTES Information for attributes
4040  *
4041  * @{
4042  */
4043 
4044 /**
4045  * For cursors representing an iboutletcollection attribute,
4046  * this function returns the collection element type.
4047  *
4048  */
4050 
4051 /**
4052  * @}
4053  */
4054 
4055 /**
4056  * \defgroup CINDEX_CURSOR_TRAVERSAL Traversing the AST with cursors
4057  *
4058  * These routines provide the ability to traverse the abstract syntax tree
4059  * using cursors.
4060  *
4061  * @{
4062  */
4063 
4064 /**
4065  * Describes how the traversal of the children of a particular
4066  * cursor should proceed after visiting a particular child cursor.
4067  *
4068  * A value of this enumeration type should be returned by each
4069  * \c CXCursorVisitor to indicate how clang_visitChildren() proceed.
4070  */
4072  /**
4073  * Terminates the cursor traversal.
4074  */
4076  /**
4077  * Continues the cursor traversal with the next sibling of
4078  * the cursor just visited, without visiting its children.
4079  */
4081  /**
4082  * Recursively traverse the children of this cursor, using
4083  * the same visitor and client data.
4084  */
4086 };
4087 
4088 /**
4089  * Visitor invoked for each cursor found by a traversal.
4090  *
4091  * This visitor function will be invoked for each cursor found by
4092  * clang_visitCursorChildren(). Its first argument is the cursor being
4093  * visited, its second argument is the parent visitor for that cursor,
4094  * and its third argument is the client data provided to
4095  * clang_visitCursorChildren().
4096  *
4097  * The visitor should return one of the \c CXChildVisitResult values
4098  * to direct clang_visitCursorChildren().
4099  */
4101  CXCursor parent,
4102  CXClientData client_data);
4103 
4104 /**
4105  * Visit the children of a particular cursor.
4106  *
4107  * This function visits all the direct children of the given cursor,
4108  * invoking the given \p visitor function with the cursors of each
4109  * visited child. The traversal may be recursive, if the visitor returns
4110  * \c CXChildVisit_Recurse. The traversal may also be ended prematurely, if
4111  * the visitor returns \c CXChildVisit_Break.
4112  *
4113  * \param parent the cursor whose child may be visited. All kinds of
4114  * cursors can be visited, including invalid cursors (which, by
4115  * definition, have no children).
4116  *
4117  * \param visitor the visitor function that will be invoked for each
4118  * child of \p parent.
4119  *
4120  * \param client_data pointer data supplied by the client, which will
4121  * be passed to the visitor each time it is invoked.
4122  *
4123  * \returns a non-zero value if the traversal was terminated
4124  * prematurely by the visitor returning \c CXChildVisit_Break.
4125  */
4127  CXCursorVisitor visitor,
4128  CXClientData client_data);
4129 #ifdef __has_feature
4130 # if __has_feature(blocks)
4131 /**
4132  * Visitor invoked for each cursor found by a traversal.
4133  *
4134  * This visitor block will be invoked for each cursor found by
4135  * clang_visitChildrenWithBlock(). Its first argument is the cursor being
4136  * visited, its second argument is the parent visitor for that cursor.
4137  *
4138  * The visitor should return one of the \c CXChildVisitResult values
4139  * to direct clang_visitChildrenWithBlock().
4140  */
4141 typedef enum CXChildVisitResult
4142  (^CXCursorVisitorBlock)(CXCursor cursor, CXCursor parent);
4143 
4144 /**
4145  * Visits the children of a cursor using the specified block. Behaves
4146  * identically to clang_visitChildren() in all other respects.
4147  */
4148 CINDEX_LINKAGE unsigned clang_visitChildrenWithBlock(CXCursor parent,
4149  CXCursorVisitorBlock block);
4150 # endif
4151 #endif
4152 
4153 /**
4154  * @}
4155  */
4156 
4157 /**
4158  * \defgroup CINDEX_CURSOR_XREF Cross-referencing in the AST
4159  *
4160  * These routines provide the ability to determine references within and
4161  * across translation units, by providing the names of the entities referenced
4162  * by cursors, follow reference cursors to the declarations they reference,
4163  * and associate declarations with their definitions.
4164  *
4165  * @{
4166  */
4167 
4168 /**
4169  * Retrieve a Unified Symbol Resolution (USR) for the entity referenced
4170  * by the given cursor.
4171  *
4172  * A Unified Symbol Resolution (USR) is a string that identifies a particular
4173  * entity (function, class, variable, etc.) within a program. USRs can be
4174  * compared across translation units to determine, e.g., when references in
4175  * one translation refer to an entity defined in another translation unit.
4176  */
4178 
4179 /**
4180  * Construct a USR for a specified Objective-C class.
4181  */
4182 CINDEX_LINKAGE CXString clang_constructUSR_ObjCClass(const char *class_name);
4183 
4184 /**
4185  * Construct a USR for a specified Objective-C category.
4186  */
4188  clang_constructUSR_ObjCCategory(const char *class_name,
4189  const char *category_name);
4190 
4191 /**
4192  * Construct a USR for a specified Objective-C protocol.
4193  */
4195  clang_constructUSR_ObjCProtocol(const char *protocol_name);
4196 
4197 /**
4198  * Construct a USR for a specified Objective-C instance variable and
4199  * the USR for its containing class.
4200  */
4202  CXString classUSR);
4203 
4204 /**
4205  * Construct a USR for a specified Objective-C method and
4206  * the USR for its containing class.
4207  */
4209  unsigned isInstanceMethod,
4210  CXString classUSR);
4211 
4212 /**
4213  * Construct a USR for a specified Objective-C property and the USR
4214  * for its containing class.
4215  */
4217  CXString classUSR);
4218 
4219 /**
4220  * Retrieve a name for the entity referenced by this cursor.
4221  */
4223 
4224 /**
4225  * Retrieve a range for a piece that forms the cursors spelling name.
4226  * Most of the times there is only one range for the complete spelling but for
4227  * Objective-C methods and Objective-C message expressions, there are multiple
4228  * pieces for each selector identifier.
4229  *
4230  * \param pieceIndex the index of the spelling name piece. If this is greater
4231  * than the actual number of pieces, it will return a NULL (invalid) range.
4232  *
4233  * \param options Reserved.
4234  */
4236  unsigned pieceIndex,
4237  unsigned options);
4238 
4239 /**
4240  * Opaque pointer representing a policy that controls pretty printing
4241  * for \c clang_getCursorPrettyPrinted.
4242  */
4243 typedef void *CXPrintingPolicy;
4244 
4245 /**
4246  * Properties for the printing policy.
4247  *
4248  * See \c clang::PrintingPolicy for more information.
4249  */
4277 
4279 };
4280 
4281 /**
4282  * Get a property value for the given printing policy.
4283  */
4284 CINDEX_LINKAGE unsigned
4285 clang_PrintingPolicy_getProperty(CXPrintingPolicy Policy,
4286  enum CXPrintingPolicyProperty Property);
4287 
4288 /**
4289  * Set a property value for the given printing policy.
4290  */
4291 CINDEX_LINKAGE void clang_PrintingPolicy_setProperty(CXPrintingPolicy Policy,
4292  enum CXPrintingPolicyProperty Property,
4293  unsigned Value);
4294 
4295 /**
4296  * Retrieve the default policy for the cursor.
4297  *
4298  * The policy should be released after use with \c
4299  * clang_PrintingPolicy_dispose.
4300  */
4302 
4303 /**
4304  * Release a printing policy.
4305  */
4306 CINDEX_LINKAGE void clang_PrintingPolicy_dispose(CXPrintingPolicy Policy);
4307 
4308 /**
4309  * Pretty print declarations.
4310  *
4311  * \param Cursor The cursor representing a declaration.
4312  *
4313  * \param Policy The policy to control the entities being printed. If
4314  * NULL, a default policy is used.
4315  *
4316  * \returns The pretty printed declaration or the empty string for
4317  * other cursors.
4318  */
4320  CXPrintingPolicy Policy);
4321 
4322 /**
4323  * Retrieve the display name for the entity referenced by this cursor.
4324  *
4325  * The display name contains extra information that helps identify the cursor,
4326  * such as the parameters of a function or template or the arguments of a
4327  * class template specialization.
4328  */
4330 
4331 /** For a cursor that is a reference, retrieve a cursor representing the
4332  * entity that it references.
4333  *
4334  * Reference cursors refer to other entities in the AST. For example, an
4335  * Objective-C superclass reference cursor refers to an Objective-C class.
4336  * This function produces the cursor for the Objective-C class from the
4337  * cursor for the superclass reference. If the input cursor is a declaration or
4338  * definition, it returns that declaration or definition unchanged.
4339  * Otherwise, returns the NULL cursor.
4340  */
4342 
4343 /**
4344  * For a cursor that is either a reference to or a declaration
4345  * of some entity, retrieve a cursor that describes the definition of
4346  * that entity.
4347  *
4348  * Some entities can be declared multiple times within a translation
4349  * unit, but only one of those declarations can also be a
4350  * definition. For example, given:
4351  *
4352  * \code
4353  * int f(int, int);
4354  * int g(int x, int y) { return f(x, y); }
4355  * int f(int a, int b) { return a + b; }
4356  * int f(int, int);
4357  * \endcode
4358  *
4359  * there are three declarations of the function "f", but only the
4360  * second one is a definition. The clang_getCursorDefinition()
4361  * function will take any cursor pointing to a declaration of "f"
4362  * (the first or fourth lines of the example) or a cursor referenced
4363  * that uses "f" (the call to "f' inside "g") and will return a
4364  * declaration cursor pointing to the definition (the second "f"
4365  * declaration).
4366  *
4367  * If given a cursor for which there is no corresponding definition,
4368  * e.g., because there is no definition of that entity within this
4369  * translation unit, returns a NULL cursor.
4370  */
4372 
4373 /**
4374  * Determine whether the declaration pointed to by this cursor
4375  * is also a definition of that entity.
4376  */
4378 
4379 /**
4380  * Retrieve the canonical cursor corresponding to the given cursor.
4381  *
4382  * In the C family of languages, many kinds of entities can be declared several
4383  * times within a single translation unit. For example, a structure type can
4384  * be forward-declared (possibly multiple times) and later defined:
4385  *
4386  * \code
4387  * struct X;
4388  * struct X;
4389  * struct X {
4390  * int member;
4391  * };
4392  * \endcode
4393  *
4394  * The declarations and the definition of \c X are represented by three
4395  * different cursors, all of which are declarations of the same underlying
4396  * entity. One of these cursor is considered the "canonical" cursor, which
4397  * is effectively the representative for the underlying entity. One can
4398  * determine if two cursors are declarations of the same underlying entity by
4399  * comparing their canonical cursors.
4400  *
4401  * \returns The canonical cursor for the entity referred to by the given cursor.
4402  */
4404 
4405 /**
4406  * If the cursor points to a selector identifier in an Objective-C
4407  * method or message expression, this returns the selector index.
4408  *
4409  * After getting a cursor with #clang_getCursor, this can be called to
4410  * determine if the location points to a selector identifier.
4411  *
4412  * \returns The selector index if the cursor is an Objective-C method or message
4413  * expression and the cursor is pointing to a selector identifier, or -1
4414  * otherwise.
4415  */
4417 
4418 /**
4419  * Given a cursor pointing to a C++ method call or an Objective-C
4420  * message, returns non-zero if the method/message is "dynamic", meaning:
4421  *
4422  * For a C++ method: the call is virtual.
4423  * For an Objective-C message: the receiver is an object instance, not 'super'
4424  * or a specific class.
4425  *
4426  * If the method/message is "static" or the cursor does not point to a
4427  * method/message, it will return zero.
4428  */
4430 
4431 /**
4432  * Given a cursor pointing to an Objective-C message or property
4433  * reference, or C++ method call, returns the CXType of the receiver.
4434  */
4436 
4437 /**
4438  * Property attributes for a \c CXCursor_ObjCPropertyDecl.
4439  */
4440 typedef enum {
4456 
4457 /**
4458  * Given a cursor that represents a property declaration, return the
4459  * associated property attributes. The bits are formed from
4460  * \c CXObjCPropertyAttrKind.
4461  *
4462  * \param reserved Reserved for future use, pass 0.
4463  */
4465  unsigned reserved);
4466 
4467 /**
4468  * Given a cursor that represents a property declaration, return the
4469  * name of the method that implements the getter.
4470  */
4472 
4473 /**
4474  * Given a cursor that represents a property declaration, return the
4475  * name of the method that implements the setter, if any.
4476  */
4478 
4479 /**
4480  * 'Qualifiers' written next to the return and parameter types in
4481  * Objective-C method declarations.
4482  */
4483 typedef enum {
4492 
4493 /**
4494  * Given a cursor that represents an Objective-C method or parameter
4495  * declaration, return the associated Objective-C qualifiers for the return
4496  * type or the parameter respectively. The bits are formed from
4497  * CXObjCDeclQualifierKind.
4498  */
4500 
4501 /**
4502  * Given a cursor that represents an Objective-C method or property
4503  * declaration, return non-zero if the declaration was affected by "\@optional".
4504  * Returns zero if the cursor is not such a declaration or it is "\@required".
4505  */
4507 
4508 /**
4509  * Returns non-zero if the given cursor is a variadic function or method.
4510  */
4512 
4513 /**
4514  * Returns non-zero if the given cursor points to a symbol marked with
4515  * external_source_symbol attribute.
4516  *
4517  * \param language If non-NULL, and the attribute is present, will be set to
4518  * the 'language' string from the attribute.
4519  *
4520  * \param definedIn If non-NULL, and the attribute is present, will be set to
4521  * the 'definedIn' string from the attribute.
4522  *
4523  * \param isGenerated If non-NULL, and the attribute is present, will be set to
4524  * non-zero if the 'generated_declaration' is set in the attribute.
4525  */
4527  CXString *language, CXString *definedIn,
4528  unsigned *isGenerated);
4529 
4530 /**
4531  * Given a cursor that represents a declaration, return the associated
4532  * comment's source range. The range may include multiple consecutive comments
4533  * with whitespace in between.
4534  */
4536 
4537 /**
4538  * Given a cursor that represents a declaration, return the associated
4539  * comment text, including comment markers.
4540  */
4542 
4543 /**
4544  * Given a cursor that represents a documentable entity (e.g.,
4545  * declaration), return the associated \paragraph; otherwise return the
4546  * first paragraph.
4547  */
4549 
4550 /**
4551  * @}
4552  */
4553 
4554 /** \defgroup CINDEX_MANGLE Name Mangling API Functions
4555  *
4556  * @{
4557  */
4558 
4559 /**
4560  * Retrieve the CXString representing the mangled name of the cursor.
4561  */
4563 
4564 /**
4565  * Retrieve the CXStrings representing the mangled symbols of the C++
4566  * constructor or destructor at the cursor.
4567  */
4569 
4570 /**
4571  * Retrieve the CXStrings representing the mangled symbols of the ObjC
4572  * class interface or implementation at the cursor.
4573  */
4575 
4576 /**
4577  * @}
4578  */
4579 
4580 /**
4581  * \defgroup CINDEX_MODULE Module introspection
4582  *
4583  * The functions in this group provide access to information about modules.
4584  *
4585  * @{
4586  */
4587 
4588 typedef void *CXModule;
4589 
4590 /**
4591  * Given a CXCursor_ModuleImportDecl cursor, return the associated module.
4592  */
4594 
4595 /**
4596  * Given a CXFile header file, return the module that contains it, if one
4597  * exists.
4598  */
4599 CINDEX_LINKAGE CXModule clang_getModuleForFile(CXTranslationUnit, CXFile);
4600 
4601 /**
4602  * \param Module a module object.
4603  *
4604  * \returns the module file where the provided module object came from.
4605  */
4606 CINDEX_LINKAGE CXFile clang_Module_getASTFile(CXModule Module);
4607 
4608 /**
4609  * \param Module a module object.
4610  *
4611  * \returns the parent of a sub-module or NULL if the given module is top-level,
4612  * e.g. for 'std.vector' it will return the 'std' module.
4613  */
4614 CINDEX_LINKAGE CXModule clang_Module_getParent(CXModule Module);
4615 
4616 /**
4617  * \param Module a module object.
4618  *
4619  * \returns the name of the module, e.g. for the 'std.vector' sub-module it
4620  * will return "vector".
4621  */
4623 
4624 /**
4625  * \param Module a module object.
4626  *
4627  * \returns the full name of the module, e.g. "std.vector".
4628  */
4630 
4631 /**
4632  * \param Module a module object.
4633  *
4634  * \returns non-zero if the module is a system one.
4635  */
4636 CINDEX_LINKAGE int clang_Module_isSystem(CXModule Module);
4637 
4638 /**
4639  * \param Module a module object.
4640  *
4641  * \returns the number of top level headers associated with this module.
4642  */
4643 CINDEX_LINKAGE unsigned clang_Module_getNumTopLevelHeaders(CXTranslationUnit,
4644  CXModule Module);
4645 
4646 /**
4647  * \param Module a module object.
4648  *
4649  * \param Index top level header index (zero-based).
4650  *
4651  * \returns the specified top level header associated with the module.
4652  */
4654 CXFile clang_Module_getTopLevelHeader(CXTranslationUnit,
4655  CXModule Module, unsigned Index);
4656 
4657 /**
4658  * @}
4659  */
4660 
4661 /**
4662  * \defgroup CINDEX_CPP C++ AST introspection
4663  *
4664  * The routines in this group provide access information in the ASTs specific
4665  * to C++ language features.
4666  *
4667  * @{
4668  */
4669 
4670 /**
4671  * Determine if a C++ constructor is a converting constructor.
4672  */
4674 
4675 /**
4676  * Determine if a C++ constructor is a copy constructor.
4677  */
4679 
4680 /**
4681  * Determine if a C++ constructor is the default constructor.
4682  */
4684 
4685 /**
4686  * Determine if a C++ constructor is a move constructor.
4687  */
4689 
4690 /**
4691  * Determine if a C++ field is declared 'mutable'.
4692  */
4694 
4695 /**
4696  * Determine if a C++ method is declared '= default'.
4697  */
4699 
4700 /**
4701  * Determine if a C++ member function or member function template is
4702  * pure virtual.
4703  */
4705 
4706 /**
4707  * Determine if a C++ member function or member function template is
4708  * declared 'static'.
4709  */
4711 
4712 /**
4713  * Determine if a C++ member function or member function template is
4714  * explicitly declared 'virtual' or if it overrides a virtual method from
4715  * one of the base classes.
4716  */
4718 
4719 /**
4720  * Determine if a C++ record is abstract, i.e. whether a class or struct
4721  * has a pure virtual member function.
4722  */
4724 
4725 /**
4726  * Determine if an enum declaration refers to a scoped enum.
4727  */
4729 
4730 /**
4731  * Determine if a C++ member function or member function template is
4732  * declared 'const'.
4733  */
4735 
4736 /**
4737  * Given a cursor that represents a template, determine
4738  * the cursor kind of the specializations would be generated by instantiating
4739  * the template.
4740  *
4741  * This routine can be used to determine what flavor of function template,
4742  * class template, or class template partial specialization is stored in the
4743  * cursor. For example, it can describe whether a class template cursor is
4744  * declared with "struct", "class" or "union".
4745  *
4746  * \param C The cursor to query. This cursor should represent a template
4747  * declaration.
4748  *
4749  * \returns The cursor kind of the specializations that would be generated
4750  * by instantiating the template \p C. If \p C is not a template, returns
4751  * \c CXCursor_NoDeclFound.
4752  */
4754 
4755 /**
4756  * Given a cursor that may represent a specialization or instantiation
4757  * of a template, retrieve the cursor that represents the template that it
4758  * specializes or from which it was instantiated.
4759  *
4760  * This routine determines the template involved both for explicit
4761  * specializations of templates and for implicit instantiations of the template,
4762  * both of which are referred to as "specializations". For a class template
4763  * specialization (e.g., \c std::vector<bool>), this routine will return
4764  * either the primary template (\c std::vector) or, if the specialization was
4765  * instantiated from a class template partial specialization, the class template
4766  * partial specialization. For a class template partial specialization and a
4767  * function template specialization (including instantiations), this
4768  * this routine will return the specialized template.
4769  *
4770  * For members of a class template (e.g., member functions, member classes, or
4771  * static data members), returns the specialized or instantiated member.
4772  * Although not strictly "templates" in the C++ language, members of class
4773  * templates have the same notions of specializations and instantiations that
4774  * templates do, so this routine treats them similarly.
4775  *
4776  * \param C A cursor that may be a specialization of a template or a member
4777  * of a template.
4778  *
4779  * \returns If the given cursor is a specialization or instantiation of a
4780  * template or a member thereof, the template or member that it specializes or
4781  * from which it was instantiated. Otherwise, returns a NULL cursor.
4782  */
4784 
4785 /**
4786  * Given a cursor that references something else, return the source range
4787  * covering that reference.
4788  *
4789  * \param C A cursor pointing to a member reference, a declaration reference, or
4790  * an operator call.
4791  * \param NameFlags A bitset with three independent flags:
4792  * CXNameRange_WantQualifier, CXNameRange_WantTemplateArgs, and
4793  * CXNameRange_WantSinglePiece.
4794  * \param PieceIndex For contiguous names or when passing the flag
4795  * CXNameRange_WantSinglePiece, only one piece with index 0 is
4796  * available. When the CXNameRange_WantSinglePiece flag is not passed for a
4797  * non-contiguous names, this index can be used to retrieve the individual
4798  * pieces of the name. See also CXNameRange_WantSinglePiece.
4799  *
4800  * \returns The piece of the name pointed to by the given cursor. If there is no
4801  * name, or if the PieceIndex is out-of-range, a null-cursor will be returned.
4802  */
4804  unsigned NameFlags,
4805  unsigned PieceIndex);
4806 
4808  /**
4809  * Include the nested-name-specifier, e.g. Foo:: in x.Foo::y, in the
4810  * range.
4811  */
4813 
4814  /**
4815  * Include the explicit template arguments, e.g. <int> in x.f<int>,
4816  * in the range.
4817  */
4819 
4820  /**
4821  * If the name is non-contiguous, return the full spanning range.
4822  *
4823  * Non-contiguous names occur in Objective-C when a selector with two or more
4824  * parameters is used, or in C++ when using an operator:
4825  * \code
4826  * [object doSomething:here withValue:there]; // Objective-C
4827  * return some_vector[1]; // C++
4828  * \endcode
4829  */
4831 };
4832 
4833 /**
4834  * @}
4835  */
4836 
4837 /**
4838  * \defgroup CINDEX_LEX Token extraction and manipulation
4839  *
4840  * The routines in this group provide access to the tokens within a
4841  * translation unit, along with a semantic mapping of those tokens to
4842  * their corresponding cursors.
4843  *
4844  * @{
4845  */
4846 
4847 /**
4848  * Describes a kind of token.
4849  */
4850 typedef enum CXTokenKind {
4851  /**
4852  * A token that contains some kind of punctuation.
4853  */
4855 
4856  /**
4857  * A language keyword.
4858  */
4860 
4861  /**
4862  * An identifier (that is not a keyword).
4863  */
4865 
4866  /**
4867  * A numeric, string, or character literal.
4868  */
4870 
4871  /**
4872  * A comment.
4873  */
4875 } CXTokenKind;
4876 
4877 /**
4878  * Describes a single preprocessing token.
4879  */
4880 typedef struct {
4881  unsigned int_data[4];
4882  void *ptr_data;
4883 } CXToken;
4884 
4885 /**
4886  * Get the raw lexical token starting with the given location.
4887  *
4888  * \param TU the translation unit whose text is being tokenized.
4889  *
4890  * \param Location the source location with which the token starts.
4891  *
4892  * \returns The token starting with the given location or NULL if no such token
4893  * exist. The returned pointer must be freed with clang_disposeTokens before the
4894  * translation unit is destroyed.
4895  */
4896 CINDEX_LINKAGE CXToken *clang_getToken(CXTranslationUnit TU,
4897  CXSourceLocation Location);
4898 
4899 /**
4900  * Determine the kind of the given token.
4901  */
4903 
4904 /**
4905  * Determine the spelling of the given token.
4906  *
4907  * The spelling of a token is the textual representation of that token, e.g.,
4908  * the text of an identifier or keyword.
4909  */
4911 
4912 /**
4913  * Retrieve the source location of the given token.
4914  */
4916  CXToken);
4917 
4918 /**
4919  * Retrieve a source range that covers the given token.
4920  */
4922 
4923 /**
4924  * Tokenize the source code described by the given range into raw
4925  * lexical tokens.
4926  *
4927  * \param TU the translation unit whose text is being tokenized.
4928  *
4929  * \param Range the source range in which text should be tokenized. All of the
4930  * tokens produced by tokenization will fall within this source range,
4931  *
4932  * \param Tokens this pointer will be set to point to the array of tokens
4933  * that occur within the given source range. The returned pointer must be
4934  * freed with clang_disposeTokens() before the translation unit is destroyed.
4935  *
4936  * \param NumTokens will be set to the number of tokens in the \c *Tokens
4937  * array.
4938  *
4939  */
4940 CINDEX_LINKAGE void clang_tokenize(CXTranslationUnit TU, CXSourceRange Range,
4941  CXToken **Tokens, unsigned *NumTokens);
4942 
4943 /**
4944  * Annotate the given set of tokens by providing cursors for each token
4945  * that can be mapped to a specific entity within the abstract syntax tree.
4946  *
4947  * This token-annotation routine is equivalent to invoking
4948  * clang_getCursor() for the source locations of each of the
4949  * tokens. The cursors provided are filtered, so that only those
4950  * cursors that have a direct correspondence to the token are
4951  * accepted. For example, given a function call \c f(x),
4952  * clang_getCursor() would provide the following cursors:
4953  *
4954  * * when the cursor is over the 'f', a DeclRefExpr cursor referring to 'f'.
4955  * * when the cursor is over the '(' or the ')', a CallExpr referring to 'f'.
4956  * * when the cursor is over the 'x', a DeclRefExpr cursor referring to 'x'.
4957  *
4958  * Only the first and last of these cursors will occur within the
4959  * annotate, since the tokens "f" and "x' directly refer to a function
4960  * and a variable, respectively, but the parentheses are just a small
4961  * part of the full syntax of the function call expression, which is
4962  * not provided as an annotation.
4963  *
4964  * \param TU the translation unit that owns the given tokens.
4965  *
4966  * \param Tokens the set of tokens to annotate.
4967  *
4968  * \param NumTokens the number of tokens in \p Tokens.
4969  *
4970  * \param Cursors an array of \p NumTokens cursors, whose contents will be
4971  * replaced with the cursors corresponding to each token.
4972  */
4973 CINDEX_LINKAGE void clang_annotateTokens(CXTranslationUnit TU,
4974  CXToken *Tokens, unsigned NumTokens,
4975  CXCursor *Cursors);
4976 
4977 /**
4978  * Free the given set of tokens.
4979  */
4980 CINDEX_LINKAGE void clang_disposeTokens(CXTranslationUnit TU,
4981  CXToken *Tokens, unsigned NumTokens);
4982 
4983 /**
4984  * @}
4985  */
4986 
4987 /**
4988  * \defgroup CINDEX_DEBUG Debugging facilities
4989  *
4990  * These routines are used for testing and debugging, only, and should not
4991  * be relied upon.
4992  *
4993  * @{
4994  */
4995 
4996 /* for debug/testing */
4999  const char **startBuf,
5000  const char **endBuf,
5001  unsigned *startLine,
5002  unsigned *startColumn,
5003  unsigned *endLine,
5004  unsigned *endColumn);
5006 CINDEX_LINKAGE void clang_executeOnThread(void (*fn)(void*), void *user_data,
5007  unsigned stack_size);
5008 
5009 /**
5010  * @}
5011  */
5012 
5013 /**
5014  * \defgroup CINDEX_CODE_COMPLET Code completion
5015  *
5016  * Code completion involves taking an (incomplete) source file, along with
5017  * knowledge of where the user is actively editing that file, and suggesting
5018  * syntactically- and semantically-valid constructs that the user might want to
5019  * use at that particular point in the source code. These data structures and
5020  * routines provide support for code completion.
5021  *
5022  * @{
5023  */
5024 
5025 /**
5026  * A semantic string that describes a code-completion result.
5027  *
5028  * A semantic string that describes the formatting of a code-completion
5029  * result as a single "template" of text that should be inserted into the
5030  * source buffer when a particular code-completion result is selected.
5031  * Each semantic string is made up of some number of "chunks", each of which
5032  * contains some text along with a description of what that text means, e.g.,
5033  * the name of the entity being referenced, whether the text chunk is part of
5034  * the template, or whether it is a "placeholder" that the user should replace
5035  * with actual code,of a specific kind. See \c CXCompletionChunkKind for a
5036  * description of the different kinds of chunks.
5037  */
5038 typedef void *CXCompletionString;
5039 
5040 /**
5041  * A single result of code completion.
5042  */
5043 typedef struct {
5044  /**
5045  * The kind of entity that this completion refers to.
5046  *
5047  * The cursor kind will be a macro, keyword, or a declaration (one of the
5048  * *Decl cursor kinds), describing the entity that the completion is
5049  * referring to.
5050  *
5051  * \todo In the future, we would like to provide a full cursor, to allow
5052  * the client to extract additional information from declaration.
5053  */
5054  enum CXCursorKind CursorKind;
5055 
5056  /**
5057  * The code-completion string that describes how to insert this
5058  * code-completion result into the editing buffer.
5059  */
5060  CXCompletionString CompletionString;
5062 
5063 /**
5064  * Describes a single piece of text within a code-completion string.
5065  *
5066  * Each "chunk" within a code-completion string (\c CXCompletionString) is
5067  * either a piece of text with a specific "kind" that describes how that text
5068  * should be interpreted by the client or is another completion string.
5069  */
5071  /**
5072  * A code-completion string that describes "optional" text that
5073  * could be a part of the template (but is not required).
5074  *
5075  * The Optional chunk is the only kind of chunk that has a code-completion
5076  * string for its representation, which is accessible via
5077  * \c clang_getCompletionChunkCompletionString(). The code-completion string
5078  * describes an additional part of the template that is completely optional.
5079  * For example, optional chunks can be used to describe the placeholders for
5080  * arguments that match up with defaulted function parameters, e.g. given:
5081  *
5082  * \code
5083  * void f(int x, float y = 3.14, double z = 2.71828);
5084  * \endcode
5085  *
5086  * The code-completion string for this function would contain:
5087  * - a TypedText chunk for "f".
5088  * - a LeftParen chunk for "(".
5089  * - a Placeholder chunk for "int x"
5090  * - an Optional chunk containing the remaining defaulted arguments, e.g.,
5091  * - a Comma chunk for ","
5092  * - a Placeholder chunk for "float y"
5093  * - an Optional chunk containing the last defaulted argument:
5094  * - a Comma chunk for ","
5095  * - a Placeholder chunk for "double z"
5096  * - a RightParen chunk for ")"
5097  *
5098  * There are many ways to handle Optional chunks. Two simple approaches are:
5099  * - Completely ignore optional chunks, in which case the template for the
5100  * function "f" would only include the first parameter ("int x").
5101  * - Fully expand all optional chunks, in which case the template for the
5102  * function "f" would have all of the parameters.
5103  */
5105  /**
5106  * Text that a user would be expected to type to get this
5107  * code-completion result.
5108  *
5109  * There will be exactly one "typed text" chunk in a semantic string, which
5110  * will typically provide the spelling of a keyword or the name of a
5111  * declaration that could be used at the current code point. Clients are
5112  * expected to filter the code-completion results based on the text in this
5113  * chunk.
5114  */
5116  /**
5117  * Text that should be inserted as part of a code-completion result.
5118  *
5119  * A "text" chunk represents text that is part of the template to be
5120  * inserted into user code should this particular code-completion result
5121  * be selected.
5122  */
5124  /**
5125  * Placeholder text that should be replaced by the user.
5126  *
5127  * A "placeholder" chunk marks a place where the user should insert text
5128  * into the code-completion template. For example, placeholders might mark
5129  * the function parameters for a function declaration, to indicate that the
5130  * user should provide arguments for each of those parameters. The actual
5131  * text in a placeholder is a suggestion for the text to display before
5132  * the user replaces the placeholder with real code.
5133  */
5135  /**
5136  * Informative text that should be displayed but never inserted as
5137  * part of the template.
5138  *
5139  * An "informative" chunk contains annotations that can be displayed to
5140  * help the user decide whether a particular code-completion result is the
5141  * right option, but which is not part of the actual template to be inserted
5142  * by code completion.
5143  */
5145  /**
5146  * Text that describes the current parameter when code-completion is
5147  * referring to function call, message send, or template specialization.
5148  *
5149  * A "current parameter" chunk occurs when code-completion is providing
5150  * information about a parameter corresponding to the argument at the
5151  * code-completion point. For example, given a function
5152  *
5153  * \code
5154  * int add(int x, int y);
5155  * \endcode
5156  *
5157  * and the source code \c add(, where the code-completion point is after the
5158  * "(", the code-completion string will contain a "current parameter" chunk
5159  * for "int x", indicating that the current argument will initialize that
5160  * parameter. After typing further, to \c add(17, (where the code-completion
5161  * point is after the ","), the code-completion string will contain a
5162  * "current parameter" chunk to "int y".
5163  */
5165  /**
5166  * A left parenthesis ('('), used to initiate a function call or
5167  * signal the beginning of a function parameter list.
5168  */
5170  /**
5171  * A right parenthesis (')'), used to finish a function call or
5172  * signal the end of a function parameter list.
5173  */
5175  /**
5176  * A left bracket ('[').
5177  */
5179  /**
5180  * A right bracket (']').
5181  */
5183  /**
5184  * A left brace ('{').
5185  */
5187  /**
5188  * A right brace ('}').
5189  */
5191  /**
5192  * A left angle bracket ('<').
5193  */
5195  /**
5196  * A right angle bracket ('>').
5197  */
5199  /**
5200  * A comma separator (',').
5201  */
5203  /**
5204  * Text that specifies the result type of a given result.
5205  *
5206  * This special kind of informative chunk is not meant to be inserted into
5207  * the text buffer. Rather, it is meant to illustrate the type that an
5208  * expression using the given completion string would have.
5209  */
5211  /**
5212  * A colon (':').
5213  */
5215  /**
5216  * A semicolon (';').
5217  */
5219  /**
5220  * An '=' sign.
5221  */
5223  /**
5224  * Horizontal space (' ').
5225  */
5227  /**
5228  * Vertical space ('\\n'), after which it is generally a good idea to
5229  * perform indentation.
5230  */
5232 };
5233 
5234 /**
5235  * Determine the kind of a particular chunk within a completion string.
5236  *
5237  * \param completion_string the completion string to query.
5238  *
5239  * \param chunk_number the 0-based index of the chunk in the completion string.
5240  *
5241  * \returns the kind of the chunk at the index \c chunk_number.
5242  */
5244 clang_getCompletionChunkKind(CXCompletionString completion_string,
5245  unsigned chunk_number);
5246 
5247 /**
5248  * Retrieve the text associated with a particular chunk within a
5249  * completion string.
5250  *
5251  * \param completion_string the completion string to query.
5252  *
5253  * \param chunk_number the 0-based index of the chunk in the completion string.
5254  *
5255  * \returns the text associated with the chunk at index \c chunk_number.
5256  */
5258 clang_getCompletionChunkText(CXCompletionString completion_string,
5259  unsigned chunk_number);
5260 
5261 /**
5262  * Retrieve the completion string associated with a particular chunk
5263  * within a completion string.
5264  *
5265  * \param completion_string the completion string to query.
5266  *
5267  * \param chunk_number the 0-based index of the chunk in the completion string.
5268  *
5269  * \returns the completion string associated with the chunk at index
5270  * \c chunk_number.
5271  */
5272 CINDEX_LINKAGE CXCompletionString
5273 clang_getCompletionChunkCompletionString(CXCompletionString completion_string,
5274  unsigned chunk_number);
5275 
5276 /**
5277  * Retrieve the number of chunks in the given code-completion string.
5278  */
5279 CINDEX_LINKAGE unsigned
5280 clang_getNumCompletionChunks(CXCompletionString completion_string);
5281 
5282 /**
5283  * Determine the priority of this code completion.
5284  *
5285  * The priority of a code completion indicates how likely it is that this
5286  * particular completion is the completion that the user will select. The
5287  * priority is selected by various internal heuristics.
5288  *
5289  * \param completion_string The completion string to query.
5290  *
5291  * \returns The priority of this completion string. Smaller values indicate
5292  * higher-priority (more likely) completions.
5293  */
5294 CINDEX_LINKAGE unsigned
5295 clang_getCompletionPriority(CXCompletionString completion_string);
5296 
5297 /**
5298  * Determine the availability of the entity that this code-completion
5299  * string refers to.
5300  *
5301  * \param completion_string The completion string to query.
5302  *
5303  * \returns The availability of the completion string.
5304  */
5306 clang_getCompletionAvailability(CXCompletionString completion_string);
5307 
5308 /**
5309  * Retrieve the number of annotations associated with the given
5310  * completion string.
5311  *
5312  * \param completion_string the completion string to query.
5313  *
5314  * \returns the number of annotations associated with the given completion
5315  * string.
5316  */
5317 CINDEX_LINKAGE unsigned
5318 clang_getCompletionNumAnnotations(CXCompletionString completion_string);
5319 
5320 /**
5321  * Retrieve the annotation associated with the given completion string.
5322  *
5323  * \param completion_string the completion string to query.
5324  *
5325  * \param annotation_number the 0-based index of the annotation of the
5326  * completion string.
5327  *
5328  * \returns annotation string associated with the completion at index
5329  * \c annotation_number, or a NULL string if that annotation is not available.
5330  */
5332 clang_getCompletionAnnotation(CXCompletionString completion_string,
5333  unsigned annotation_number);
5334 
5335 /**
5336  * Retrieve the parent context of the given completion string.
5337  *
5338  * The parent context of a completion string is the semantic parent of
5339  * the declaration (if any) that the code completion represents. For example,
5340  * a code completion for an Objective-C method would have the method's class
5341  * or protocol as its context.
5342  *
5343  * \param completion_string The code completion string whose parent is
5344  * being queried.
5345  *
5346  * \param kind DEPRECATED: always set to CXCursor_NotImplemented if non-NULL.
5347  *
5348  * \returns The name of the completion parent, e.g., "NSObject" if
5349  * the completion string represents a method in the NSObject class.
5350  */
5352 clang_getCompletionParent(CXCompletionString completion_string,
5353  enum CXCursorKind *kind);
5354 
5355 /**
5356  * Retrieve the brief documentation comment attached to the declaration
5357  * that corresponds to the given completion string.
5358  */
5360 clang_getCompletionBriefComment(CXCompletionString completion_string);
5361 
5362 /**
5363  * Retrieve a completion string for an arbitrary declaration or macro
5364  * definition cursor.
5365  *
5366  * \param cursor The cursor to query.
5367  *
5368  * \returns A non-context-sensitive completion string for declaration and macro
5369  * definition cursors, or NULL for other kinds of cursors.
5370  */
5371 CINDEX_LINKAGE CXCompletionString
5373 
5374 /**
5375  * Contains the results of code-completion.
5376  *
5377  * This data structure contains the results of code completion, as
5378  * produced by \c clang_codeCompleteAt(). Its contents must be freed by
5379  * \c clang_disposeCodeCompleteResults.
5380  */
5381 typedef struct {
5382  /**
5383  * The code-completion results.
5384  */
5386 
5387  /**
5388  * The number of code-completion results stored in the
5389  * \c Results array.
5390  */
5391  unsigned NumResults;
5393 
5394 /**
5395  * Retrieve the number of fix-its for the given completion index.
5396  *
5397  * Calling this makes sense only if CXCodeComplete_IncludeCompletionsWithFixIts
5398  * option was set.
5399  *
5400  * \param results The structure keeping all completion results
5401  *
5402  * \param completion_index The index of the completion
5403  *
5404  * \return The number of fix-its which must be applied before the completion at
5405  * completion_index can be applied
5406  */
5407 CINDEX_LINKAGE unsigned
5409  unsigned completion_index);
5410 
5411 /**
5412  * Fix-its that *must* be applied before inserting the text for the
5413  * corresponding completion.
5414  *
5415  * By default, clang_codeCompleteAt() only returns completions with empty
5416  * fix-its. Extra completions with non-empty fix-its should be explicitly
5417  * requested by setting CXCodeComplete_IncludeCompletionsWithFixIts.
5418  *
5419  * For the clients to be able to compute position of the cursor after applying
5420  * fix-its, the following conditions are guaranteed to hold for
5421  * replacement_range of the stored fix-its:
5422  * - Ranges in the fix-its are guaranteed to never contain the completion
5423  * point (or identifier under completion point, if any) inside them, except
5424  * at the start or at the end of the range.
5425  * - If a fix-it range starts or ends with completion point (or starts or
5426  * ends after the identifier under completion point), it will contain at
5427  * least one character. It allows to unambiguously recompute completion
5428  * point after applying the fix-it.
5429  *
5430  * The intuition is that provided fix-its change code around the identifier we
5431  * complete, but are not allowed to touch the identifier itself or the
5432  * completion point. One example of completions with corrections are the ones
5433  * replacing '.' with '->' and vice versa:
5434  *
5435  * std::unique_ptr<std::vector<int>> vec_ptr;
5436  * In 'vec_ptr.^', one of the completions is 'push_back', it requires
5437  * replacing '.' with '->'.
5438  * In 'vec_ptr->^', one of the completions is 'release', it requires
5439  * replacing '->' with '.'.
5440  *
5441  * \param results The structure keeping all completion results
5442  *
5443  * \param completion_index The index of the completion
5444  *
5445  * \param fixit_index The index of the fix-it for the completion at
5446  * completion_index
5447  *
5448  * \param replacement_range The fix-it range that must be replaced before the
5449  * completion at completion_index can be applied
5450  *
5451  * \returns The fix-it string that must replace the code at replacement_range
5452  * before the completion at completion_index can be applied
5453  */
5455  CXCodeCompleteResults *results, unsigned completion_index,
5456  unsigned fixit_index, CXSourceRange *replacement_range);
5457 
5458 /**
5459  * Flags that can be passed to \c clang_codeCompleteAt() to
5460  * modify its behavior.
5461  *
5462  * The enumerators in this enumeration can be bitwise-OR'd together to
5463  * provide multiple options to \c clang_codeCompleteAt().
5464  */
5466  /**
5467  * Whether to include macros within the set of code
5468  * completions returned.
5469  */
5471 
5472  /**
5473  * Whether to include code patterns for language constructs
5474  * within the set of code completions, e.g., for loops.
5475  */
5477 
5478  /**
5479  * Whether to include brief documentation within the set of code
5480  * completions returned.
5481  */
5483 
5484  /**
5485  * Whether to speed up completion by omitting top- or namespace-level entities
5486  * defined in the preamble. There's no guarantee any particular entity is
5487  * omitted. This may be useful if the headers are indexed externally.
5488  */
5490 
5491  /**
5492  * Whether to include completions with small
5493  * fix-its, e.g. change '.' to '->' on member access, etc.
5494  */
5496 };
5497 
5498 /**
5499  * Bits that represent the context under which completion is occurring.
5500  *
5501  * The enumerators in this enumeration may be bitwise-OR'd together if multiple
5502  * contexts are occurring simultaneously.
5503  */
5505  /**
5506  * The context for completions is unexposed, as only Clang results
5507  * should be included. (This is equivalent to having no context bits set.)
5508  */
5510 
5511  /**
5512  * Completions for any possible type should be included in the results.
5513  */
5515 
5516  /**
5517  * Completions for any possible value (variables, function calls, etc.)
5518  * should be included in the results.
5519  */
5521  /**
5522  * Completions for values that resolve to an Objective-C object should
5523  * be included in the results.
5524  */
5526  /**
5527  * Completions for values that resolve to an Objective-C selector
5528  * should be included in the results.
5529  */
5531  /**
5532  * Completions for values that resolve to a C++ class type should be
5533  * included in the results.
5534  */
5536 
5537  /**
5538  * Completions for fields of the member being accessed using the dot
5539  * operator should be included in the results.
5540  */
5542  /**
5543  * Completions for fields of the member being accessed using the arrow
5544  * operator should be included in the results.
5545  */
5547  /**
5548  * Completions for properties of the Objective-C object being accessed
5549  * using the dot operator should be included in the results.
5550  */
5552 
5553  /**
5554  * Completions for enum tags should be included in the results.
5555  */
5557  /**
5558  * Completions for union tags should be included in the results.
5559  */
5561  /**
5562  * Completions for struct tags should be included in the results.
5563  */
5565 
5566  /**
5567  * Completions for C++ class names should be included in the results.
5568  */
5570  /**
5571  * Completions for C++ namespaces and namespace aliases should be
5572  * included in the results.
5573  */
5575  /**
5576  * Completions for C++ nested name specifiers should be included in
5577  * the results.
5578  */
5580 
5581  /**
5582  * Completions for Objective-C interfaces (classes) should be included
5583  * in the results.
5584  */
5586  /**
5587  * Completions for Objective-C protocols should be included in
5588  * the results.
5589  */
5591  /**
5592  * Completions for Objective-C categories should be included in
5593  * the results.
5594  */
5596  /**
5597  * Completions for Objective-C instance messages should be included
5598  * in the results.
5599  */
5601  /**
5602  * Completions for Objective-C class messages should be included in
5603  * the results.
5604  */
5606  /**
5607  * Completions for Objective-C selector names should be included in
5608  * the results.
5609  */
5611 
5612  /**
5613  * Completions for preprocessor macro names should be included in
5614  * the results.
5615  */
5617 
5618  /**
5619  * Natural language completions should be included in the results.
5620  */
5622 
5623  /**
5624  * #include file completions should be included in the results.
5625  */
5627 
5628  /**
5629  * The current context is unknown, so set all contexts.
5630  */
5632 };
5633 
5634 /**
5635  * Returns a default set of code-completion options that can be
5636  * passed to\c clang_codeCompleteAt().
5637  */
5639 
5640 /**
5641  * Perform code completion at a given location in a translation unit.
5642  *
5643  * This function performs code completion at a particular file, line, and
5644  * column within source code, providing results that suggest potential
5645  * code snippets based on the context of the completion. The basic model
5646  * for code completion is that Clang will parse a complete source file,
5647  * performing syntax checking up to the location where code-completion has
5648  * been requested. At that point, a special code-completion token is passed
5649  * to the parser, which recognizes this token and determines, based on the
5650  * current location in the C/Objective-C/C++ grammar and the state of
5651  * semantic analysis, what completions to provide. These completions are
5652  * returned via a new \c CXCodeCompleteResults structure.
5653  *
5654  * Code completion itself is meant to be triggered by the client when the
5655  * user types punctuation characters or whitespace, at which point the
5656  * code-completion location will coincide with the cursor. For example, if \c p
5657  * is a pointer, code-completion might be triggered after the "-" and then
5658  * after the ">" in \c p->. When the code-completion location is after the ">",
5659  * the completion results will provide, e.g., the members of the struct that
5660  * "p" points to. The client is responsible for placing the cursor at the
5661  * beginning of the token currently being typed, then filtering the results
5662  * based on the contents of the token. For example, when code-completing for
5663  * the expression \c p->get, the client should provide the location just after
5664  * the ">" (e.g., pointing at the "g") to this code-completion hook. Then, the
5665  * client can filter the results based on the current token text ("get"), only
5666  * showing those results that start with "get". The intent of this interface
5667  * is to separate the relatively high-latency acquisition of code-completion
5668  * results from the filtering of results on a per-character basis, which must
5669  * have a lower latency.
5670  *
5671  * \param TU The translation unit in which code-completion should
5672  * occur. The source files for this translation unit need not be
5673  * completely up-to-date (and the contents of those source files may
5674  * be overridden via \p unsaved_files). Cursors referring into the
5675  * translation unit may be invalidated by this invocation.