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