ASTBitCodes.h source code [clang_source_code/include/clang/Serialization/ASTBitCodes.h]

1	//===- ASTBitCodes.h - Enum values for the PCH bitcode format ---- C++ --===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8	//
9	// This header defines Bitcode enum values for Clang serialized AST files.
10	//
11	// The enum values defined in this file should be considered permanent. If
12	// new features are added, they should have values added at the end of the
13	// respective lists.
14	//
15	//===----------------------------------------------------------------------===//
16
17	#ifndef LLVM_CLANG_SERIALIZATION_ASTBITCODES_H
18	#define LLVM_CLANG_SERIALIZATION_ASTBITCODES_H
19
20	#include "clang/AST/DeclarationName.h"
21	#include "clang/AST/Type.h"
22	#include "clang/Basic/IdentifierTable.h"
23	#include "clang/Basic/OperatorKinds.h"
24	#include "clang/Basic/SourceLocation.h"
25	#include "llvm/ADT/DenseMapInfo.h"
26	#include "llvm/Bitcode/BitCodes.h"
27	#include <cassert>
28	#include <cstdint>
29
30	namespace clang {
31	namespace serialization {
32
33	/// AST file major version number supported by this version of
34	/// Clang.
35	///
36	/// Whenever the AST file format changes in a way that makes it
37	/// incompatible with previous versions (such that a reader
38	/// designed for the previous version could not support reading
39	/// the new version), this number should be increased.
40	///
41	/// Version 4 of AST files also requires that the version control branch and
42	/// revision match exactly, since there is no backward compatibility of
43	/// AST files at this time.
44	const unsigned VERSION_MAJOR = 7;
45
46	/// AST file minor version number supported by this version of
47	/// Clang.
48	///
49	/// Whenever the AST format changes in a way that is still
50	/// compatible with previous versions (such that a reader designed
51	/// for the previous version could still support reading the new
52	/// version by ignoring new kinds of subblocks), this number
53	/// should be increased.
54	const unsigned VERSION_MINOR = 0;
55
56	/// An ID number that refers to an identifier in an AST file.
57	///
58	/// The ID numbers of identifiers are consecutive (in order of discovery)
59	/// and start at 1. 0 is reserved for NULL.
60	using IdentifierID = uint32_t;
61
62	/// An ID number that refers to a declaration in an AST file.
63	///
64	/// The ID numbers of declarations are consecutive (in order of
65	/// discovery), with values below NUM_PREDEF_DECL_IDS being reserved.
66	/// At the start of a chain of precompiled headers, declaration ID 1 is
67	/// used for the translation unit declaration.
68	using DeclID = uint32_t;
69
70	// FIXME: Turn these into classes so we can have some type safety when
71	// we go from local ID to global and vice-versa.
72	using LocalDeclID = DeclID;
73	using GlobalDeclID = DeclID;
74
75	/// An ID number that refers to a type in an AST file.
76	///
77	/// The ID of a type is partitioned into two parts: the lower
78	/// three bits are used to store the const/volatile/restrict
79	/// qualifiers (as with QualType) and the upper bits provide a
80	/// type index. The type index values are partitioned into two
81	/// sets. The values below NUM_PREDEF_TYPE_IDs are predefined type
82	/// IDs (based on the PREDEF_TYPE_*_ID constants), with 0 as a
83	/// placeholder for "no type". Values from NUM_PREDEF_TYPE_IDs are
84	/// other types that have serialized representations.
85	using TypeID = uint32_t;
86
87	/// A type index; the type ID with the qualifier bits removed.
88	class TypeIdx {
89	uint32_t Idx = 0;
90
91	public:
92	TypeIdx() = default;
93	explicit TypeIdx(uint32_t index) : Idx(index) {}
94
95	uint32_t getIndex() const { return Idx; }
96
97	TypeID asTypeID(unsigned FastQuals) const {
98	if (Idx == uint32_t(-1))
99	return TypeID(-1);
100
101	return (Idx << Qualifiers::FastWidth) \| FastQuals;
102	}
103
104	static TypeIdx fromTypeID(TypeID ID) {
105	if (ID == TypeID(-1))
106	return TypeIdx(-1);
107
108	return TypeIdx(ID >> Qualifiers::FastWidth);
109	}
110	};
111
112	/// A structure for putting "fast"-unqualified QualTypes into a
113	/// DenseMap. This uses the standard pointer hash function.
114	struct UnsafeQualTypeDenseMapInfo {
115	static bool isEqual(QualType A, QualType B) { return A == B; }
116
117	static QualType getEmptyKey() {
118	return QualType::getFromOpaquePtr((void*) 1);
119	}
120
121	static QualType getTombstoneKey() {
122	return QualType::getFromOpaquePtr((void*) 2);
123	}
124
125	static unsigned getHashValue(QualType T) {
126	(0) . __assert_fail ("!T.getLocalFastQualifiers() && \"hash invalid for types with fast quals\"", "/home/seafit/code_projects/clang_source/clang/include/clang/Serialization/ASTBitCodes.h", 127, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(!T.getLocalFastQualifiers() &&
127	(0) . __assert_fail ("!T.getLocalFastQualifiers() && \"hash invalid for types with fast quals\"", "/home/seafit/code_projects/clang_source/clang/include/clang/Serialization/ASTBitCodes.h", 127, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true"> "hash invalid for types with fast quals");
128	uintptr_t v = reinterpret_cast<uintptr_t>(T.getAsOpaquePtr());
129	return (unsigned(v) >> 4) ^ (unsigned(v) >> 9);
130	}
131	};
132
133	/// An ID number that refers to an identifier in an AST file.
134	using IdentID = uint32_t;
135
136	/// The number of predefined identifier IDs.
137	const unsigned int NUM_PREDEF_IDENT_IDS = 1;
138
139	/// An ID number that refers to a macro in an AST file.
140	using MacroID = uint32_t;
141
142	/// A global ID number that refers to a macro in an AST file.
143	using GlobalMacroID = uint32_t;
144
145	/// A local to a module ID number that refers to a macro in an
146	/// AST file.
147	using LocalMacroID = uint32_t;
148
149	/// The number of predefined macro IDs.
150	const unsigned int NUM_PREDEF_MACRO_IDS = 1;
151
152	/// An ID number that refers to an ObjC selector in an AST file.
153	using SelectorID = uint32_t;
154
155	/// The number of predefined selector IDs.
156	const unsigned int NUM_PREDEF_SELECTOR_IDS = 1;
157
158	/// An ID number that refers to a set of CXXBaseSpecifiers in an
159	/// AST file.
160	using CXXBaseSpecifiersID = uint32_t;
161
162	/// An ID number that refers to a list of CXXCtorInitializers in an
163	/// AST file.
164	using CXXCtorInitializersID = uint32_t;
165
166	/// An ID number that refers to an entity in the detailed
167	/// preprocessing record.
168	using PreprocessedEntityID = uint32_t;
169
170	/// An ID number that refers to a submodule in a module file.
171	using SubmoduleID = uint32_t;
172
173	/// The number of predefined submodule IDs.
174	const unsigned int NUM_PREDEF_SUBMODULE_IDS = 1;
175
176	/// Source range/offset of a preprocessed entity.
177	struct PPEntityOffset {
178	/// Raw source location of beginning of range.
179	unsigned Begin;
180
181	/// Raw source location of end of range.
182	unsigned End;
183
184	/// Offset in the AST file.
185	uint32_t BitOffset;
186
187	PPEntityOffset(SourceRange R, uint32_t BitOffset)
188	: Begin(R.getBegin().getRawEncoding()),
189	End(R.getEnd().getRawEncoding()), BitOffset(BitOffset) {}
190
191	SourceLocation getBegin() const {
192	return SourceLocation::getFromRawEncoding(Begin);
193	}
194
195	SourceLocation getEnd() const {
196	return SourceLocation::getFromRawEncoding(End);
197	}
198	};
199
200	/// Source range of a skipped preprocessor region
201	struct PPSkippedRange {
202	/// Raw source location of beginning of range.
203	unsigned Begin;
204	/// Raw source location of end of range.
205	unsigned End;
206
207	PPSkippedRange(SourceRange R)
208	: Begin(R.getBegin().getRawEncoding()),
209	End(R.getEnd().getRawEncoding()) { }
210
211	SourceLocation getBegin() const {
212	return SourceLocation::getFromRawEncoding(Begin);
213	}
214	SourceLocation getEnd() const {
215	return SourceLocation::getFromRawEncoding(End);
216	}
217	};
218
219	/// Source range/offset of a preprocessed entity.
220	struct DeclOffset {
221	/// Raw source location.
222	unsigned Loc = 0;
223
224	/// Offset in the AST file.
225	uint32_t BitOffset = 0;
226
227	DeclOffset() = default;
228	DeclOffset(SourceLocation Loc, uint32_t BitOffset)
229	: Loc(Loc.getRawEncoding()), BitOffset(BitOffset) {}
230
231	void setLocation(SourceLocation L) {
232	Loc = L.getRawEncoding();
233	}
234
235	SourceLocation getLocation() const {
236	return SourceLocation::getFromRawEncoding(Loc);
237	}
238	};
239
240	/// The number of predefined preprocessed entity IDs.
241	const unsigned int NUM_PREDEF_PP_ENTITY_IDS = 1;
242
243	/// Describes the various kinds of blocks that occur within
244	/// an AST file.
245	enum BlockIDs {
246	/// The AST block, which acts as a container around the
247	/// full AST block.
248	AST_BLOCK_ID = llvm::bitc::FIRST_APPLICATION_BLOCKID,
249
250	/// The block containing information about the source
251	/// manager.
252	SOURCE_MANAGER_BLOCK_ID,
253
254	/// The block containing information about the
255	/// preprocessor.
256	PREPROCESSOR_BLOCK_ID,
257
258	/// The block containing the definitions of all of the
259	/// types and decls used within the AST file.
260	DECLTYPES_BLOCK_ID,
261
262	/// The block containing the detailed preprocessing record.
263	PREPROCESSOR_DETAIL_BLOCK_ID,
264
265	/// The block containing the submodule structure.
266	SUBMODULE_BLOCK_ID,
267
268	/// The block containing comments.
269	COMMENTS_BLOCK_ID,
270
271	/// The control block, which contains all of the
272	/// information that needs to be validated prior to committing
273	/// to loading the AST file.
274	CONTROL_BLOCK_ID,
275
276	/// The block of input files, which were used as inputs
277	/// to create this AST file.
278	///
279	/// This block is part of the control block.
280	INPUT_FILES_BLOCK_ID,
281
282	/// The block of configuration options, used to check that
283	/// a module is being used in a configuration compatible with the
284	/// configuration in which it was built.
285	///
286	/// This block is part of the control block.
287	OPTIONS_BLOCK_ID,
288
289	/// A block containing a module file extension.
290	EXTENSION_BLOCK_ID,
291
292	/// A block with unhashed content.
293	///
294	/// These records should not change the \a ASTFileSignature. See \a
295	/// UnhashedControlBlockRecordTypes for the list of records.
296	UNHASHED_CONTROL_BLOCK_ID,
297	};
298
299	/// Record types that occur within the control block.
300	enum ControlRecordTypes {
301	/// AST file metadata, including the AST file version number
302	/// and information about the compiler used to build this AST file.
303	METADATA = 1,
304
305	/// Record code for the list of other AST files imported by
306	/// this AST file.
307	IMPORTS,
308
309	/// Record code for the original file that was used to
310	/// generate the AST file, including both its file ID and its
311	/// name.
312	ORIGINAL_FILE,
313
314	/// The directory that the PCH was originally created in.
315	ORIGINAL_PCH_DIR,
316
317	/// Record code for file ID of the file or buffer that was used to
318	/// generate the AST file.
319	ORIGINAL_FILE_ID,
320
321	/// Offsets into the input-files block where input files
322	/// reside.
323	INPUT_FILE_OFFSETS,
324
325	/// Record code for the module name.
326	MODULE_NAME,
327
328	/// Record code for the module map file that was used to build this
329	/// AST file.
330	MODULE_MAP_FILE,
331
332	/// Record code for the module build directory.
333	MODULE_DIRECTORY,
334	};
335
336	/// Record types that occur within the options block inside
337	/// the control block.
338	enum OptionsRecordTypes {
339	/// Record code for the language options table.
340	///
341	/// The record with this code contains the contents of the
342	/// LangOptions structure. We serialize the entire contents of
343	/// the structure, and let the reader decide which options are
344	/// actually important to check.
345	LANGUAGE_OPTIONS = 1,
346
347	/// Record code for the target options table.
348	TARGET_OPTIONS,
349
350	/// Record code for the filesystem options table.
351	FILE_SYSTEM_OPTIONS,
352
353	/// Record code for the headers search options table.
354	HEADER_SEARCH_OPTIONS,
355
356	/// Record code for the preprocessor options table.
357	PREPROCESSOR_OPTIONS,
358	};
359
360	/// Record codes for the unhashed control block.
361	enum UnhashedControlBlockRecordTypes {
362	/// Record code for the signature that identifiers this AST file.
363	SIGNATURE = 1,
364
365	/// Record code for the diagnostic options table.
366	DIAGNOSTIC_OPTIONS,
367
368	/// Record code for \#pragma diagnostic mappings.
369	DIAG_PRAGMA_MAPPINGS,
370	};
371
372	/// Record code for extension blocks.
373	enum ExtensionBlockRecordTypes {
374	/// Metadata describing this particular extension.
375	EXTENSION_METADATA = 1,
376
377	/// The first record ID allocated to the extensions themselves.
378	FIRST_EXTENSION_RECORD_ID = 4
379	};
380
381	/// Record types that occur within the input-files block
382	/// inside the control block.
383	enum InputFileRecordTypes {
384	/// An input file.
385	INPUT_FILE = 1
386	};
387
388	/// Record types that occur within the AST block itself.
389	enum ASTRecordTypes {
390	/// Record code for the offsets of each type.
391	///
392	/// The TYPE_OFFSET constant describes the record that occurs
393	/// within the AST block. The record itself is an array of offsets that
394	/// point into the declarations and types block (identified by
395	/// DECLTYPES_BLOCK_ID). The index into the array is based on the ID
396	/// of a type. For a given type ID @c T, the lower three bits of
397	/// @c T are its qualifiers (const, volatile, restrict), as in
398	/// the QualType class. The upper bits, after being shifted and
399	/// subtracting NUM_PREDEF_TYPE_IDS, are used to index into the
400	/// TYPE_OFFSET block to determine the offset of that type's
401	/// corresponding record within the DECLTYPES_BLOCK_ID block.
402	TYPE_OFFSET = 1,
403
404	/// Record code for the offsets of each decl.
405	///
406	/// The DECL_OFFSET constant describes the record that occurs
407	/// within the block identified by DECL_OFFSETS_BLOCK_ID within
408	/// the AST block. The record itself is an array of offsets that
409	/// point into the declarations and types block (identified by
410	/// DECLTYPES_BLOCK_ID). The declaration ID is an index into this
411	/// record, after subtracting one to account for the use of
412	/// declaration ID 0 for a NULL declaration pointer. Index 0 is
413	/// reserved for the translation unit declaration.
414	DECL_OFFSET = 2,
415
416	/// Record code for the table of offsets of each
417	/// identifier ID.
418	///
419	/// The offset table contains offsets into the blob stored in
420	/// the IDENTIFIER_TABLE record. Each offset points to the
421	/// NULL-terminated string that corresponds to that identifier.
422	IDENTIFIER_OFFSET = 3,
423
424	/// This is so that older clang versions, before the introduction
425	/// of the control block, can read and reject the newer PCH format.
426	/// DON'T CHANGE THIS NUMBER.
427	METADATA_OLD_FORMAT = 4,
428
429	/// Record code for the identifier table.
430	///
431	/// The identifier table is a simple blob that contains
432	/// NULL-terminated strings for all of the identifiers
433	/// referenced by the AST file. The IDENTIFIER_OFFSET table
434	/// contains the mapping from identifier IDs to the characters
435	/// in this blob. Note that the starting offsets of all of the
436	/// identifiers are odd, so that, when the identifier offset
437	/// table is loaded in, we can use the low bit to distinguish
438	/// between offsets (for unresolved identifier IDs) and
439	/// IdentifierInfo pointers (for already-resolved identifier
440	/// IDs).
441	IDENTIFIER_TABLE = 5,
442
443	/// Record code for the array of eagerly deserialized decls.
444	///
445	/// The AST file contains a list of all of the declarations that should be
446	/// eagerly deserialized present within the parsed headers, stored as an
447	/// array of declaration IDs. These declarations will be
448	/// reported to the AST consumer after the AST file has been
449	/// read, since their presence can affect the semantics of the
450	/// program (e.g., for code generation).
451	EAGERLY_DESERIALIZED_DECLS = 6,
452
453	/// Record code for the set of non-builtin, special
454	/// types.
455	///
456	/// This record contains the type IDs for the various type nodes
457	/// that are constructed during semantic analysis (e.g.,
458	/// __builtin_va_list). The SPECIAL_TYPE_* constants provide
459	/// offsets into this record.
460	SPECIAL_TYPES = 7,
461
462	/// Record code for the extra statistics we gather while
463	/// generating an AST file.
464	STATISTICS = 8,
465
466	/// Record code for the array of tentative definitions.
467	TENTATIVE_DEFINITIONS = 9,
468
469	// ID 10 used to be for a list of extern "C" declarations.
470
471	/// Record code for the table of offsets into the
472	/// Objective-C method pool.
473	SELECTOR_OFFSETS = 11,
474
475	/// Record code for the Objective-C method pool,
476	METHOD_POOL = 12,
477
478	/// The value of the next __COUNTER__ to dispense.
479	/// [PP_COUNTER_VALUE, Val]
480	PP_COUNTER_VALUE = 13,
481
482	/// Record code for the table of offsets into the block
483	/// of source-location information.
484	SOURCE_LOCATION_OFFSETS = 14,
485
486	/// Record code for the set of source location entries
487	/// that need to be preloaded by the AST reader.
488	///
489	/// This set contains the source location entry for the
490	/// predefines buffer and for any file entries that need to be
491	/// preloaded.
492	SOURCE_LOCATION_PRELOADS = 15,
493
494	/// Record code for the set of ext_vector type names.
495	EXT_VECTOR_DECLS = 16,
496
497	/// Record code for the array of unused file scoped decls.
498	UNUSED_FILESCOPED_DECLS = 17,
499
500	/// Record code for the table of offsets to entries in the
501	/// preprocessing record.
502	PPD_ENTITIES_OFFSETS = 18,
503
504	/// Record code for the array of VTable uses.
505	VTABLE_USES = 19,
506
507	// ID 20 used to be for a list of dynamic classes.
508
509	/// Record code for referenced selector pool.
510	REFERENCED_SELECTOR_POOL = 21,
511
512	/// Record code for an update to the TU's lexically contained
513	/// declarations.
514	TU_UPDATE_LEXICAL = 22,
515
516	// ID 23 used to be for a list of local redeclarations.
517
518	/// Record code for declarations that Sema keeps references of.
519	SEMA_DECL_REFS = 24,
520
521	/// Record code for weak undeclared identifiers.
522	WEAK_UNDECLARED_IDENTIFIERS = 25,
523
524	/// Record code for pending implicit instantiations.
525	PENDING_IMPLICIT_INSTANTIATIONS = 26,
526
527	// ID 27 used to be for a list of replacement decls.
528
529	/// Record code for an update to a decl context's lookup table.
530	///
531	/// In practice, this should only be used for the TU and namespaces.
532	UPDATE_VISIBLE = 28,
533
534	/// Record for offsets of DECL_UPDATES records for declarations
535	/// that were modified after being deserialized and need updates.
536	DECL_UPDATE_OFFSETS = 29,
537
538	// ID 30 used to be a decl update record. These are now in the DECLTYPES
539	// block.
540
541	// ID 31 used to be a list of offsets to DECL_CXX_BASE_SPECIFIERS records.
542
543	// ID 32 used to be the code for \#pragma diagnostic mappings.
544
545	/// Record code for special CUDA declarations.
546	CUDA_SPECIAL_DECL_REFS = 33,
547
548	/// Record code for header search information.
549	HEADER_SEARCH_TABLE = 34,
550
551	/// Record code for floating point \#pragma options.
552	FP_PRAGMA_OPTIONS = 35,
553
554	/// Record code for enabled OpenCL extensions.
555	OPENCL_EXTENSIONS = 36,
556
557	/// The list of delegating constructor declarations.
558	DELEGATING_CTORS = 37,
559
560	/// Record code for the set of known namespaces, which are used
561	/// for typo correction.
562	KNOWN_NAMESPACES = 38,
563
564	/// Record code for the remapping information used to relate
565	/// loaded modules to the various offsets and IDs(e.g., source location
566	/// offests, declaration and type IDs) that are used in that module to
567	/// refer to other modules.
568	MODULE_OFFSET_MAP = 39,
569
570	/// Record code for the source manager line table information,
571	/// which stores information about \#line directives.
572	SOURCE_MANAGER_LINE_TABLE = 40,
573
574	/// Record code for map of Objective-C class definition IDs to the
575	/// ObjC categories in a module that are attached to that class.
576	OBJC_CATEGORIES_MAP = 41,
577
578	/// Record code for a file sorted array of DeclIDs in a module.
579	FILE_SORTED_DECLS = 42,
580
581	/// Record code for an array of all of the (sub)modules that were
582	/// imported by the AST file.
583	IMPORTED_MODULES = 43,
584
585	// ID 44 used to be a table of merged canonical declarations.
586	// ID 45 used to be a list of declaration IDs of local redeclarations.
587
588	/// Record code for the array of Objective-C categories (including
589	/// extensions).
590	///
591	/// This array can only be interpreted properly using the Objective-C
592	/// categories map.
593	OBJC_CATEGORIES = 46,
594
595	/// Record code for the table of offsets of each macro ID.
596	///
597	/// The offset table contains offsets into the blob stored in
598	/// the preprocessor block. Each offset points to the corresponding
599	/// macro definition.
600	MACRO_OFFSET = 47,
601
602	/// A list of "interesting" identifiers. Only used in C++ (where we
603	/// don't normally do lookups into the serialized identifier table). These
604	/// are eagerly deserialized.
605	INTERESTING_IDENTIFIERS = 48,
606
607	/// Record code for undefined but used functions and variables that
608	/// need a definition in this TU.
609	UNDEFINED_BUT_USED = 49,
610
611	/// Record code for late parsed template functions.
612	LATE_PARSED_TEMPLATE = 50,
613
614	/// Record code for \#pragma optimize options.
615	OPTIMIZE_PRAGMA_OPTIONS = 51,
616
617	/// Record code for potentially unused local typedef names.
618	UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES = 52,
619
620	// ID 53 used to be a table of constructor initializer records.
621
622	/// Delete expressions that will be analyzed later.
623	DELETE_EXPRS_TO_ANALYZE = 54,
624
625	/// Record code for \#pragma ms_struct options.
626	MSSTRUCT_PRAGMA_OPTIONS = 55,
627
628	/// Record code for \#pragma ms_struct options.
629	POINTERS_TO_MEMBERS_PRAGMA_OPTIONS = 56,
630
631	/// Number of unmatched #pragma clang cuda_force_host_device begin
632	/// directives we've seen.
633	CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH = 57,
634
635	/// Record code for types associated with OpenCL extensions.
636	OPENCL_EXTENSION_TYPES = 58,
637
638	/// Record code for declarations associated with OpenCL extensions.
639	OPENCL_EXTENSION_DECLS = 59,
640
641	MODULAR_CODEGEN_DECLS = 60,
642
643	/// Record code for \#pragma pack options.
644	PACK_PRAGMA_OPTIONS = 61,
645
646	/// The stack of open #ifs/#ifdefs recorded in a preamble.
647	PP_CONDITIONAL_STACK = 62,
648
649	/// A table of skipped ranges within the preprocessing record.
650	PPD_SKIPPED_RANGES = 63
651	};
652
653	/// Record types used within a source manager block.
654	enum SourceManagerRecordTypes {
655	/// Describes a source location entry (SLocEntry) for a
656	/// file.
657	SM_SLOC_FILE_ENTRY = 1,
658
659	/// Describes a source location entry (SLocEntry) for a
660	/// buffer.
661	SM_SLOC_BUFFER_ENTRY = 2,
662
663	/// Describes a blob that contains the data for a buffer
664	/// entry. This kind of record always directly follows a
665	/// SM_SLOC_BUFFER_ENTRY record or a SM_SLOC_FILE_ENTRY with an
666	/// overridden buffer.
667	SM_SLOC_BUFFER_BLOB = 3,
668
669	/// Describes a zlib-compressed blob that contains the data for
670	/// a buffer entry.
671	SM_SLOC_BUFFER_BLOB_COMPRESSED = 4,
672
673	/// Describes a source location entry (SLocEntry) for a
674	/// macro expansion.
675	SM_SLOC_EXPANSION_ENTRY = 5
676	};
677
678	/// Record types used within a preprocessor block.
679	enum PreprocessorRecordTypes {
680	// The macros in the PP section are a PP_MACRO_* instance followed by a
681	// list of PP_TOKEN instances for each token in the definition.
682
683	/// An object-like macro definition.
684	/// [PP_MACRO_OBJECT_LIKE, IdentInfoID, SLoc, IsUsed]
685	PP_MACRO_OBJECT_LIKE = 1,
686
687	/// A function-like macro definition.
688	/// [PP_MACRO_FUNCTION_LIKE, \<ObjectLikeStuff>, IsC99Varargs,
689	/// IsGNUVarars, NumArgs, ArgIdentInfoID* ]
690	PP_MACRO_FUNCTION_LIKE = 2,
691
692	/// Describes one token.
693	/// [PP_TOKEN, SLoc, Length, IdentInfoID, Kind, Flags]
694	PP_TOKEN = 3,
695
696	/// The macro directives history for a particular identifier.
697	PP_MACRO_DIRECTIVE_HISTORY = 4,
698
699	/// A macro directive exported by a module.
700	/// [PP_MODULE_MACRO, SubmoduleID, MacroID, (Overridden SubmoduleID)*]
701	PP_MODULE_MACRO = 5,
702	};
703
704	/// Record types used within a preprocessor detail block.
705	enum PreprocessorDetailRecordTypes {
706	/// Describes a macro expansion within the preprocessing record.
707	PPD_MACRO_EXPANSION = 0,
708
709	/// Describes a macro definition within the preprocessing record.
710	PPD_MACRO_DEFINITION = 1,
711
712	/// Describes an inclusion directive within the preprocessing
713	/// record.
714	PPD_INCLUSION_DIRECTIVE = 2
715	};
716
717	/// Record types used within a submodule description block.
718	enum SubmoduleRecordTypes {
719	/// Metadata for submodules as a whole.
720	SUBMODULE_METADATA = 0,
721
722	/// Defines the major attributes of a submodule, including its
723	/// name and parent.
724	SUBMODULE_DEFINITION = 1,
725
726	/// Specifies the umbrella header used to create this module,
727	/// if any.
728	SUBMODULE_UMBRELLA_HEADER = 2,
729
730	/// Specifies a header that falls into this (sub)module.
731	SUBMODULE_HEADER = 3,
732
733	/// Specifies a top-level header that falls into this (sub)module.
734	SUBMODULE_TOPHEADER = 4,
735
736	/// Specifies an umbrella directory.
737	SUBMODULE_UMBRELLA_DIR = 5,
738
739	/// Specifies the submodules that are imported by this
740	/// submodule.
741	SUBMODULE_IMPORTS = 6,
742
743	/// Specifies the submodules that are re-exported from this
744	/// submodule.
745	SUBMODULE_EXPORTS = 7,
746
747	/// Specifies a required feature.
748	SUBMODULE_REQUIRES = 8,
749
750	/// Specifies a header that has been explicitly excluded
751	/// from this submodule.
752	SUBMODULE_EXCLUDED_HEADER = 9,
753
754	/// Specifies a library or framework to link against.
755	SUBMODULE_LINK_LIBRARY = 10,
756
757	/// Specifies a configuration macro for this module.
758	SUBMODULE_CONFIG_MACRO = 11,
759
760	/// Specifies a conflict with another module.
761	SUBMODULE_CONFLICT = 12,
762
763	/// Specifies a header that is private to this submodule.
764	SUBMODULE_PRIVATE_HEADER = 13,
765
766	/// Specifies a header that is part of the module but must be
767	/// textually included.
768	SUBMODULE_TEXTUAL_HEADER = 14,
769
770	/// Specifies a header that is private to this submodule but
771	/// must be textually included.
772	SUBMODULE_PRIVATE_TEXTUAL_HEADER = 15,
773
774	/// Specifies some declarations with initializers that must be
775	/// emitted to initialize the module.
776	SUBMODULE_INITIALIZERS = 16,
777
778	/// Specifies the name of the module that will eventually
779	/// re-export the entities in this module.
780	SUBMODULE_EXPORT_AS = 17,
781	};
782
783	/// Record types used within a comments block.
784	enum CommentRecordTypes {
785	COMMENTS_RAW_COMMENT = 0
786	};
787
788	/// \defgroup ASTAST AST file AST constants
789	///
790	/// The constants in this group describe various components of the
791	/// abstract syntax tree within an AST file.
792	///
793	/// @{
794
795	/// Predefined type IDs.
796	///
797	/// These type IDs correspond to predefined types in the AST
798	/// context, such as built-in types (int) and special place-holder
799	/// types (the \<overload> and \<dependent> type markers). Such
800	/// types are never actually serialized, since they will be built
801	/// by the AST context when it is created.
802	enum PredefinedTypeIDs {
803	/// The NULL type.
804	PREDEF_TYPE_NULL_ID = 0,
805
806	/// The void type.
807	PREDEF_TYPE_VOID_ID = 1,
808
809	/// The 'bool' or '_Bool' type.
810	PREDEF_TYPE_BOOL_ID = 2,
811
812	/// The 'char' type, when it is unsigned.
813	PREDEF_TYPE_CHAR_U_ID = 3,
814
815	/// The 'unsigned char' type.
816	PREDEF_TYPE_UCHAR_ID = 4,
817
818	/// The 'unsigned short' type.
819	PREDEF_TYPE_USHORT_ID = 5,
820
821	/// The 'unsigned int' type.
822	PREDEF_TYPE_UINT_ID = 6,
823
824	/// The 'unsigned long' type.
825	PREDEF_TYPE_ULONG_ID = 7,
826
827	/// The 'unsigned long long' type.
828	PREDEF_TYPE_ULONGLONG_ID = 8,
829
830	/// The 'char' type, when it is signed.
831	PREDEF_TYPE_CHAR_S_ID = 9,
832
833	/// The 'signed char' type.
834	PREDEF_TYPE_SCHAR_ID = 10,
835
836	/// The C++ 'wchar_t' type.
837	PREDEF_TYPE_WCHAR_ID = 11,
838
839	/// The (signed) 'short' type.
840	PREDEF_TYPE_SHORT_ID = 12,
841
842	/// The (signed) 'int' type.
843	PREDEF_TYPE_INT_ID = 13,
844
845	/// The (signed) 'long' type.
846	PREDEF_TYPE_LONG_ID = 14,
847
848	/// The (signed) 'long long' type.
849	PREDEF_TYPE_LONGLONG_ID = 15,
850
851	/// The 'float' type.
852	PREDEF_TYPE_FLOAT_ID = 16,
853
854	/// The 'double' type.
855	PREDEF_TYPE_DOUBLE_ID = 17,
856
857	/// The 'long double' type.
858	PREDEF_TYPE_LONGDOUBLE_ID = 18,
859
860	/// The placeholder type for overloaded function sets.
861	PREDEF_TYPE_OVERLOAD_ID = 19,
862
863	/// The placeholder type for dependent types.
864	PREDEF_TYPE_DEPENDENT_ID = 20,
865
866	/// The '__uint128_t' type.
867	PREDEF_TYPE_UINT128_ID = 21,
868
869	/// The '__int128_t' type.
870	PREDEF_TYPE_INT128_ID = 22,
871
872	/// The type of 'nullptr'.
873	PREDEF_TYPE_NULLPTR_ID = 23,
874
875	/// The C++ 'char16_t' type.
876	PREDEF_TYPE_CHAR16_ID = 24,
877
878	/// The C++ 'char32_t' type.
879	PREDEF_TYPE_CHAR32_ID = 25,
880
881	/// The ObjC 'id' type.
882	PREDEF_TYPE_OBJC_ID = 26,
883
884	/// The ObjC 'Class' type.
885	PREDEF_TYPE_OBJC_CLASS = 27,
886
887	/// The ObjC 'SEL' type.
888	PREDEF_TYPE_OBJC_SEL = 28,
889
890	/// The 'unknown any' placeholder type.
891	PREDEF_TYPE_UNKNOWN_ANY = 29,
892
893	/// The placeholder type for bound member functions.
894	PREDEF_TYPE_BOUND_MEMBER = 30,
895
896	/// The "auto" deduction type.
897	PREDEF_TYPE_AUTO_DEDUCT = 31,
898
899	/// The "auto &&" deduction type.
900	PREDEF_TYPE_AUTO_RREF_DEDUCT = 32,
901
902	/// The OpenCL 'half' / ARM NEON __fp16 type.
903	PREDEF_TYPE_HALF_ID = 33,
904
905	/// ARC's unbridged-cast placeholder type.
906	PREDEF_TYPE_ARC_UNBRIDGED_CAST = 34,
907
908	/// The pseudo-object placeholder type.
909	PREDEF_TYPE_PSEUDO_OBJECT = 35,
910
911	/// The placeholder type for builtin functions.
912	PREDEF_TYPE_BUILTIN_FN = 36,
913
914	/// OpenCL event type.
915	PREDEF_TYPE_EVENT_ID = 37,
916
917	/// OpenCL clk event type.
918	PREDEF_TYPE_CLK_EVENT_ID = 38,
919
920	/// OpenCL sampler type.
921	PREDEF_TYPE_SAMPLER_ID = 39,
922
923	/// OpenCL queue type.
924	PREDEF_TYPE_QUEUE_ID = 40,
925
926	/// OpenCL reserve_id type.
927	PREDEF_TYPE_RESERVE_ID_ID = 41,
928
929	/// The placeholder type for OpenMP array section.
930	PREDEF_TYPE_OMP_ARRAY_SECTION = 42,
931
932	/// The '__float128' type
933	PREDEF_TYPE_FLOAT128_ID = 43,
934
935	/// The '_Float16' type
936	PREDEF_TYPE_FLOAT16_ID = 44,
937
938	/// The C++ 'char8_t' type.
939	PREDEF_TYPE_CHAR8_ID = 45,
940
941	/// \brief The 'short _Accum' type
942	PREDEF_TYPE_SHORT_ACCUM_ID = 46,
943
944	/// \brief The '_Accum' type
945	PREDEF_TYPE_ACCUM_ID = 47,
946
947	/// \brief The 'long _Accum' type
948	PREDEF_TYPE_LONG_ACCUM_ID = 48,
949
950	/// \brief The 'unsigned short _Accum' type
951	PREDEF_TYPE_USHORT_ACCUM_ID = 49,
952
953	/// \brief The 'unsigned _Accum' type
954	PREDEF_TYPE_UACCUM_ID = 50,
955
956	/// \brief The 'unsigned long _Accum' type
957	PREDEF_TYPE_ULONG_ACCUM_ID = 51,
958
959	/// \brief The 'short _Fract' type
960	PREDEF_TYPE_SHORT_FRACT_ID = 52,
961
962	/// \brief The '_Fract' type
963	PREDEF_TYPE_FRACT_ID = 53,
964
965	/// \brief The 'long _Fract' type
966	PREDEF_TYPE_LONG_FRACT_ID = 54,
967
968	/// \brief The 'unsigned short _Fract' type
969	PREDEF_TYPE_USHORT_FRACT_ID = 55,
970
971	/// \brief The 'unsigned _Fract' type
972	PREDEF_TYPE_UFRACT_ID = 56,
973
974	/// \brief The 'unsigned long _Fract' type
975	PREDEF_TYPE_ULONG_FRACT_ID = 57,
976
977	/// \brief The '_Sat short _Accum' type
978	PREDEF_TYPE_SAT_SHORT_ACCUM_ID = 58,
979
980	/// \brief The '_Sat _Accum' type
981	PREDEF_TYPE_SAT_ACCUM_ID = 59,
982
983	/// \brief The '_Sat long _Accum' type
984	PREDEF_TYPE_SAT_LONG_ACCUM_ID = 60,
985
986	/// \brief The '_Sat unsigned short _Accum' type
987	PREDEF_TYPE_SAT_USHORT_ACCUM_ID = 61,
988
989	/// \brief The '_Sat unsigned _Accum' type
990	PREDEF_TYPE_SAT_UACCUM_ID = 62,
991
992	/// \brief The '_Sat unsigned long _Accum' type
993	PREDEF_TYPE_SAT_ULONG_ACCUM_ID = 63,
994
995	/// \brief The '_Sat short _Fract' type
996	PREDEF_TYPE_SAT_SHORT_FRACT_ID = 64,
997
998	/// \brief The '_Sat _Fract' type
999	PREDEF_TYPE_SAT_FRACT_ID = 65,
1000
1001	/// \brief The '_Sat long _Fract' type
1002	PREDEF_TYPE_SAT_LONG_FRACT_ID = 66,
1003
1004	/// \brief The '_Sat unsigned short _Fract' type
1005	PREDEF_TYPE_SAT_USHORT_FRACT_ID = 67,
1006
1007	/// \brief The '_Sat unsigned _Fract' type
1008	PREDEF_TYPE_SAT_UFRACT_ID = 68,
1009
1010	/// \brief The '_Sat unsigned long _Fract' type
1011	PREDEF_TYPE_SAT_ULONG_FRACT_ID = 69,
1012
1013	/// OpenCL image types with auto numeration
1014	#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
1015	PREDEF_TYPE_##Id##_ID,
1016	#include "clang/Basic/OpenCLImageTypes.def"
1017	/// \brief OpenCL extension types with auto numeration
1018	#define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
1019	PREDEF_TYPE_##Id##_ID,
1020	#include "clang/Basic/OpenCLExtensionTypes.def"
1021	};
1022
1023	/// The number of predefined type IDs that are reserved for
1024	/// the PREDEF_TYPE_* constants.
1025	///
1026	/// Type IDs for non-predefined types will start at
1027	/// NUM_PREDEF_TYPE_IDs.
1028	const unsigned NUM_PREDEF_TYPE_IDS = 200;
1029
1030	/// Record codes for each kind of type.
1031	///
1032	/// These constants describe the type records that can occur within a
1033	/// block identified by DECLTYPES_BLOCK_ID in the AST file. Each
1034	/// constant describes a record for a specific type class in the
1035	/// AST. Note that DeclCode values share this code space.
1036	enum TypeCode {
1037	/// An ExtQualType record.
1038	TYPE_EXT_QUAL = 1,
1039
1040	/// A ComplexType record.
1041	TYPE_COMPLEX = 3,
1042
1043	/// A PointerType record.
1044	TYPE_POINTER = 4,
1045
1046	/// A BlockPointerType record.
1047	TYPE_BLOCK_POINTER = 5,
1048
1049	/// An LValueReferenceType record.
1050	TYPE_LVALUE_REFERENCE = 6,
1051
1052	/// An RValueReferenceType record.
1053	TYPE_RVALUE_REFERENCE = 7,
1054
1055	/// A MemberPointerType record.
1056	TYPE_MEMBER_POINTER = 8,
1057
1058	/// A ConstantArrayType record.
1059	TYPE_CONSTANT_ARRAY = 9,
1060
1061	/// An IncompleteArrayType record.
1062	TYPE_INCOMPLETE_ARRAY = 10,
1063
1064	/// A VariableArrayType record.
1065	TYPE_VARIABLE_ARRAY = 11,
1066
1067	/// A VectorType record.
1068	TYPE_VECTOR = 12,
1069
1070	/// An ExtVectorType record.
1071	TYPE_EXT_VECTOR = 13,
1072
1073	/// A FunctionNoProtoType record.
1074	TYPE_FUNCTION_NO_PROTO = 14,
1075
1076	/// A FunctionProtoType record.
1077	TYPE_FUNCTION_PROTO = 15,
1078
1079	/// A TypedefType record.
1080	TYPE_TYPEDEF = 16,
1081
1082	/// A TypeOfExprType record.
1083	TYPE_TYPEOF_EXPR = 17,
1084
1085	/// A TypeOfType record.
1086	TYPE_TYPEOF = 18,
1087
1088	/// A RecordType record.
1089	TYPE_RECORD = 19,
1090
1091	/// An EnumType record.
1092	TYPE_ENUM = 20,
1093
1094	/// An ObjCInterfaceType record.
1095	TYPE_OBJC_INTERFACE = 21,
1096
1097	/// An ObjCObjectPointerType record.
1098	TYPE_OBJC_OBJECT_POINTER = 22,
1099
1100	/// a DecltypeType record.
1101	TYPE_DECLTYPE = 23,
1102
1103	/// An ElaboratedType record.
1104	TYPE_ELABORATED = 24,
1105
1106	/// A SubstTemplateTypeParmType record.
1107	TYPE_SUBST_TEMPLATE_TYPE_PARM = 25,
1108
1109	/// An UnresolvedUsingType record.
1110	TYPE_UNRESOLVED_USING = 26,
1111
1112	/// An InjectedClassNameType record.
1113	TYPE_INJECTED_CLASS_NAME = 27,
1114
1115	/// An ObjCObjectType record.
1116	TYPE_OBJC_OBJECT = 28,
1117
1118	/// An TemplateTypeParmType record.
1119	TYPE_TEMPLATE_TYPE_PARM = 29,
1120
1121	/// An TemplateSpecializationType record.
1122	TYPE_TEMPLATE_SPECIALIZATION = 30,
1123
1124	/// A DependentNameType record.
1125	TYPE_DEPENDENT_NAME = 31,
1126
1127	/// A DependentTemplateSpecializationType record.
1128	TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION = 32,
1129
1130	/// A DependentSizedArrayType record.
1131	TYPE_DEPENDENT_SIZED_ARRAY = 33,
1132
1133	/// A ParenType record.
1134	TYPE_PAREN = 34,
1135
1136	/// A PackExpansionType record.
1137	TYPE_PACK_EXPANSION = 35,
1138
1139	/// An AttributedType record.
1140	TYPE_ATTRIBUTED = 36,
1141
1142	/// A SubstTemplateTypeParmPackType record.
1143	TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK = 37,
1144
1145	/// A AutoType record.
1146	TYPE_AUTO = 38,
1147
1148	/// A UnaryTransformType record.
1149	TYPE_UNARY_TRANSFORM = 39,
1150
1151	/// An AtomicType record.
1152	TYPE_ATOMIC = 40,
1153
1154	/// A DecayedType record.
1155	TYPE_DECAYED = 41,
1156
1157	/// An AdjustedType record.
1158	TYPE_ADJUSTED = 42,
1159
1160	/// A PipeType record.
1161	TYPE_PIPE = 43,
1162
1163	/// An ObjCTypeParamType record.
1164	TYPE_OBJC_TYPE_PARAM = 44,
1165
1166	/// A DeducedTemplateSpecializationType record.
1167	TYPE_DEDUCED_TEMPLATE_SPECIALIZATION = 45,
1168
1169	/// A DependentSizedExtVectorType record.
1170	TYPE_DEPENDENT_SIZED_EXT_VECTOR = 46,
1171
1172	/// A DependentAddressSpaceType record.
1173	TYPE_DEPENDENT_ADDRESS_SPACE = 47,
1174
1175	/// A dependentSizedVectorType record.
1176	TYPE_DEPENDENT_SIZED_VECTOR = 48
1177	};
1178
1179	/// The type IDs for special types constructed by semantic
1180	/// analysis.
1181	///
1182	/// The constants in this enumeration are indices into the
1183	/// SPECIAL_TYPES record.
1184	enum SpecialTypeIDs {
1185	/// CFConstantString type
1186	SPECIAL_TYPE_CF_CONSTANT_STRING = 0,
1187
1188	/// C FILE typedef type
1189	SPECIAL_TYPE_FILE = 1,
1190
1191	/// C jmp_buf typedef type
1192	SPECIAL_TYPE_JMP_BUF = 2,
1193
1194	/// C sigjmp_buf typedef type
1195	SPECIAL_TYPE_SIGJMP_BUF = 3,
1196
1197	/// Objective-C "id" redefinition type
1198	SPECIAL_TYPE_OBJC_ID_REDEFINITION = 4,
1199
1200	/// Objective-C "Class" redefinition type
1201	SPECIAL_TYPE_OBJC_CLASS_REDEFINITION = 5,
1202
1203	/// Objective-C "SEL" redefinition type
1204	SPECIAL_TYPE_OBJC_SEL_REDEFINITION = 6,
1205
1206	/// C ucontext_t typedef type
1207	SPECIAL_TYPE_UCONTEXT_T = 7
1208	};
1209
1210	/// The number of special type IDs.
1211	const unsigned NumSpecialTypeIDs = 8;
1212
1213	/// Predefined declaration IDs.
1214	///
1215	/// These declaration IDs correspond to predefined declarations in the AST
1216	/// context, such as the NULL declaration ID. Such declarations are never
1217	/// actually serialized, since they will be built by the AST context when
1218	/// it is created.
1219	enum PredefinedDeclIDs {
1220	/// The NULL declaration.
1221	PREDEF_DECL_NULL_ID = 0,
1222
1223	/// The translation unit.
1224	PREDEF_DECL_TRANSLATION_UNIT_ID = 1,
1225
1226	/// The Objective-C 'id' type.
1227	PREDEF_DECL_OBJC_ID_ID = 2,
1228
1229	/// The Objective-C 'SEL' type.
1230	PREDEF_DECL_OBJC_SEL_ID = 3,
1231
1232	/// The Objective-C 'Class' type.
1233	PREDEF_DECL_OBJC_CLASS_ID = 4,
1234
1235	/// The Objective-C 'Protocol' type.
1236	PREDEF_DECL_OBJC_PROTOCOL_ID = 5,
1237
1238	/// The signed 128-bit integer type.
1239	PREDEF_DECL_INT_128_ID = 6,
1240
1241	/// The unsigned 128-bit integer type.
1242	PREDEF_DECL_UNSIGNED_INT_128_ID = 7,
1243
1244	/// The internal 'instancetype' typedef.
1245	PREDEF_DECL_OBJC_INSTANCETYPE_ID = 8,
1246
1247	/// The internal '__builtin_va_list' typedef.
1248	PREDEF_DECL_BUILTIN_VA_LIST_ID = 9,
1249
1250	/// The internal '__va_list_tag' struct, if any.
1251	PREDEF_DECL_VA_LIST_TAG = 10,
1252
1253	/// The internal '__builtin_ms_va_list' typedef.
1254	PREDEF_DECL_BUILTIN_MS_VA_LIST_ID = 11,
1255
1256	/// The extern "C" context.
1257	PREDEF_DECL_EXTERN_C_CONTEXT_ID = 12,
1258
1259	/// The internal '__make_integer_seq' template.
1260	PREDEF_DECL_MAKE_INTEGER_SEQ_ID = 13,
1261
1262	/// The internal '__NSConstantString' typedef.
1263	PREDEF_DECL_CF_CONSTANT_STRING_ID = 14,
1264
1265	/// The internal '__NSConstantString' tag type.
1266	PREDEF_DECL_CF_CONSTANT_STRING_TAG_ID = 15,
1267
1268	/// The internal '__type_pack_element' template.
1269	PREDEF_DECL_TYPE_PACK_ELEMENT_ID = 16,
1270	};
1271
1272	/// The number of declaration IDs that are predefined.
1273	///
1274	/// For more information about predefined declarations, see the
1275	/// \c PredefinedDeclIDs type and the PREDEF_DECL_*_ID constants.
1276	const unsigned int NUM_PREDEF_DECL_IDS = 17;
1277
1278	/// Record of updates for a declaration that was modified after
1279	/// being deserialized. This can occur within DECLTYPES_BLOCK_ID.
1280	const unsigned int DECL_UPDATES = 49;
1281
1282	/// Record code for a list of local redeclarations of a declaration.
1283	/// This can occur within DECLTYPES_BLOCK_ID.
1284	const unsigned int LOCAL_REDECLARATIONS = 50;
1285
1286	/// Record codes for each kind of declaration.
1287	///
1288	/// These constants describe the declaration records that can occur within
1289	/// a declarations block (identified by DECLTYPES_BLOCK_ID). Each
1290	/// constant describes a record for a specific declaration class
1291	/// in the AST. Note that TypeCode values share this code space.
1292	enum DeclCode {
1293	/// A TypedefDecl record.
1294	DECL_TYPEDEF = 51,
1295	/// A TypeAliasDecl record.
1296
1297	DECL_TYPEALIAS,
1298
1299	/// An EnumDecl record.
1300	DECL_ENUM,
1301
1302	/// A RecordDecl record.
1303	DECL_RECORD,
1304
1305	/// An EnumConstantDecl record.
1306	DECL_ENUM_CONSTANT,
1307
1308	/// A FunctionDecl record.
1309	DECL_FUNCTION,
1310
1311	/// A ObjCMethodDecl record.
1312	DECL_OBJC_METHOD,
1313
1314	/// A ObjCInterfaceDecl record.
1315	DECL_OBJC_INTERFACE,
1316
1317	/// A ObjCProtocolDecl record.
1318	DECL_OBJC_PROTOCOL,
1319
1320	/// A ObjCIvarDecl record.
1321	DECL_OBJC_IVAR,
1322
1323	/// A ObjCAtDefsFieldDecl record.
1324	DECL_OBJC_AT_DEFS_FIELD,
1325
1326	/// A ObjCCategoryDecl record.
1327	DECL_OBJC_CATEGORY,
1328
1329	/// A ObjCCategoryImplDecl record.
1330	DECL_OBJC_CATEGORY_IMPL,
1331
1332	/// A ObjCImplementationDecl record.
1333	DECL_OBJC_IMPLEMENTATION,
1334
1335	/// A ObjCCompatibleAliasDecl record.
1336	DECL_OBJC_COMPATIBLE_ALIAS,
1337
1338	/// A ObjCPropertyDecl record.
1339	DECL_OBJC_PROPERTY,
1340
1341	/// A ObjCPropertyImplDecl record.
1342	DECL_OBJC_PROPERTY_IMPL,
1343
1344	/// A FieldDecl record.
1345	DECL_FIELD,
1346
1347	/// A MSPropertyDecl record.
1348	DECL_MS_PROPERTY,
1349
1350	/// A VarDecl record.
1351	DECL_VAR,
1352
1353	/// An ImplicitParamDecl record.
1354	DECL_IMPLICIT_PARAM,
1355
1356	/// A ParmVarDecl record.
1357	DECL_PARM_VAR,
1358
1359	/// A DecompositionDecl record.
1360	DECL_DECOMPOSITION,
1361
1362	/// A BindingDecl record.
1363	DECL_BINDING,
1364
1365	/// A FileScopeAsmDecl record.
1366	DECL_FILE_SCOPE_ASM,
1367
1368	/// A BlockDecl record.
1369	DECL_BLOCK,
1370
1371	/// A CapturedDecl record.
1372	DECL_CAPTURED,
1373
1374	/// A record that stores the set of declarations that are
1375	/// lexically stored within a given DeclContext.
1376	///
1377	/// The record itself is a blob that is an array of declaration IDs,
1378	/// in the order in which those declarations were added to the
1379	/// declaration context. This data is used when iterating over
1380	/// the contents of a DeclContext, e.g., via
1381	/// DeclContext::decls_begin() and DeclContext::decls_end().
1382	DECL_CONTEXT_LEXICAL,
1383
1384	/// A record that stores the set of declarations that are
1385	/// visible from a given DeclContext.
1386	///
1387	/// The record itself stores a set of mappings, each of which
1388	/// associates a declaration name with one or more declaration
1389	/// IDs. This data is used when performing qualified name lookup
1390	/// into a DeclContext via DeclContext::lookup.
1391	DECL_CONTEXT_VISIBLE,
1392
1393	/// A LabelDecl record.
1394	DECL_LABEL,
1395
1396	/// A NamespaceDecl record.
1397	DECL_NAMESPACE,
1398
1399	/// A NamespaceAliasDecl record.
1400	DECL_NAMESPACE_ALIAS,
1401
1402	/// A UsingDecl record.
1403	DECL_USING,
1404
1405	/// A UsingPackDecl record.
1406	DECL_USING_PACK,
1407
1408	/// A UsingShadowDecl record.
1409	DECL_USING_SHADOW,
1410
1411	/// A ConstructorUsingShadowDecl record.
1412	DECL_CONSTRUCTOR_USING_SHADOW,
1413
1414	/// A UsingDirecitveDecl record.
1415	DECL_USING_DIRECTIVE,
1416
1417	/// An UnresolvedUsingValueDecl record.
1418	DECL_UNRESOLVED_USING_VALUE,
1419
1420	/// An UnresolvedUsingTypenameDecl record.
1421	DECL_UNRESOLVED_USING_TYPENAME,
1422
1423	/// A LinkageSpecDecl record.
1424	DECL_LINKAGE_SPEC,
1425
1426	/// An ExportDecl record.
1427	DECL_EXPORT,
1428
1429	/// A CXXRecordDecl record.
1430	DECL_CXX_RECORD,
1431
1432	/// A CXXDeductionGuideDecl record.
1433	DECL_CXX_DEDUCTION_GUIDE,
1434
1435	/// A CXXMethodDecl record.
1436	DECL_CXX_METHOD,
1437
1438	/// A CXXConstructorDecl record.
1439	DECL_CXX_CONSTRUCTOR,
1440
1441	/// A CXXConstructorDecl record for an inherited constructor.
1442	DECL_CXX_INHERITED_CONSTRUCTOR,
1443
1444	/// A CXXDestructorDecl record.
1445	DECL_CXX_DESTRUCTOR,
1446
1447	/// A CXXConversionDecl record.
1448	DECL_CXX_CONVERSION,
1449
1450	/// An AccessSpecDecl record.
1451	DECL_ACCESS_SPEC,
1452
1453	/// A FriendDecl record.
1454	DECL_FRIEND,
1455
1456	/// A FriendTemplateDecl record.
1457	DECL_FRIEND_TEMPLATE,
1458
1459	/// A ClassTemplateDecl record.
1460	DECL_CLASS_TEMPLATE,
1461
1462	/// A ClassTemplateSpecializationDecl record.
1463	DECL_CLASS_TEMPLATE_SPECIALIZATION,
1464
1465	/// A ClassTemplatePartialSpecializationDecl record.
1466	DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION,
1467
1468	/// A VarTemplateDecl record.
1469	DECL_VAR_TEMPLATE,
1470
1471	/// A VarTemplateSpecializationDecl record.
1472	DECL_VAR_TEMPLATE_SPECIALIZATION,
1473
1474	/// A VarTemplatePartialSpecializationDecl record.
1475	DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION,
1476
1477	/// A FunctionTemplateDecl record.
1478	DECL_FUNCTION_TEMPLATE,
1479
1480	/// A TemplateTypeParmDecl record.
1481	DECL_TEMPLATE_TYPE_PARM,
1482
1483	/// A NonTypeTemplateParmDecl record.
1484	DECL_NON_TYPE_TEMPLATE_PARM,
1485
1486	/// A TemplateTemplateParmDecl record.
1487	DECL_TEMPLATE_TEMPLATE_PARM,
1488
1489	/// A TypeAliasTemplateDecl record.
1490	DECL_TYPE_ALIAS_TEMPLATE,
1491
1492	/// A StaticAssertDecl record.
1493	DECL_STATIC_ASSERT,
1494
1495	/// A record containing CXXBaseSpecifiers.
1496	DECL_CXX_BASE_SPECIFIERS,
1497
1498	/// A record containing CXXCtorInitializers.
1499	DECL_CXX_CTOR_INITIALIZERS,
1500
1501	/// A IndirectFieldDecl record.
1502	DECL_INDIRECTFIELD,
1503
1504	/// A NonTypeTemplateParmDecl record that stores an expanded
1505	/// non-type template parameter pack.
1506	DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK,
1507
1508	/// A TemplateTemplateParmDecl record that stores an expanded
1509	/// template template parameter pack.
1510	DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK,
1511
1512	/// A ClassScopeFunctionSpecializationDecl record a class scope
1513	/// function specialization. (Microsoft extension).
1514	DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION,
1515
1516	/// An ImportDecl recording a module import.
1517	DECL_IMPORT,
1518
1519	/// An OMPThreadPrivateDecl record.
1520	DECL_OMP_THREADPRIVATE,
1521
1522	/// An OMPRequiresDecl record.
1523	DECL_OMP_REQUIRES,
1524
1525	/// An OMPAllocateDcl record.
1526	DECL_OMP_ALLOCATE,
1527
1528	/// An EmptyDecl record.
1529	DECL_EMPTY,
1530
1531	/// An ObjCTypeParamDecl record.
1532	DECL_OBJC_TYPE_PARAM,
1533
1534	/// An OMPCapturedExprDecl record.
1535	DECL_OMP_CAPTUREDEXPR,
1536
1537	/// A PragmaCommentDecl record.
1538	DECL_PRAGMA_COMMENT,
1539
1540	/// A PragmaDetectMismatchDecl record.
1541	DECL_PRAGMA_DETECT_MISMATCH,
1542
1543	/// An OMPDeclareMapperDecl record.
1544	DECL_OMP_DECLARE_MAPPER,
1545
1546	/// An OMPDeclareReductionDecl record.
1547	DECL_OMP_DECLARE_REDUCTION,
1548
1549	DECL_LAST = DECL_OMP_DECLARE_REDUCTION
1550	};
1551
1552	/// Record codes for each kind of statement or expression.
1553	///
1554	/// These constants describe the records that describe statements
1555	/// or expressions. These records occur within type and declarations
1556	/// block, so they begin with record values of 128. Each constant
1557	/// describes a record for a specific statement or expression class in the
1558	/// AST.
1559	enum StmtCode {
1560	/// A marker record that indicates that we are at the end
1561	/// of an expression.
1562	STMT_STOP = DECL_LAST + 1,
1563
1564	/// A NULL expression.
1565	STMT_NULL_PTR,
1566
1567	/// A reference to a previously [de]serialized Stmt record.
1568	STMT_REF_PTR,
1569
1570	/// A NullStmt record.
1571	STMT_NULL,
1572
1573	/// A CompoundStmt record.
1574	STMT_COMPOUND,
1575
1576	/// A CaseStmt record.
1577	STMT_CASE,
1578
1579	/// A DefaultStmt record.
1580	STMT_DEFAULT,
1581
1582	/// A LabelStmt record.
1583	STMT_LABEL,
1584
1585	/// An AttributedStmt record.
1586	STMT_ATTRIBUTED,
1587
1588	/// An IfStmt record.
1589	STMT_IF,
1590
1591	/// A SwitchStmt record.
1592	STMT_SWITCH,
1593
1594	/// A WhileStmt record.
1595	STMT_WHILE,
1596
1597	/// A DoStmt record.
1598	STMT_DO,
1599
1600	/// A ForStmt record.
1601	STMT_FOR,
1602
1603	/// A GotoStmt record.
1604	STMT_GOTO,
1605
1606	/// An IndirectGotoStmt record.
1607	STMT_INDIRECT_GOTO,
1608
1609	/// A ContinueStmt record.
1610	STMT_CONTINUE,
1611
1612	/// A BreakStmt record.
1613	STMT_BREAK,
1614
1615	/// A ReturnStmt record.
1616	STMT_RETURN,
1617
1618	/// A DeclStmt record.
1619	STMT_DECL,
1620
1621	/// A CapturedStmt record.
1622	STMT_CAPTURED,
1623
1624	/// A GCC-style AsmStmt record.
1625	STMT_GCCASM,
1626
1627	/// A MS-style AsmStmt record.
1628	STMT_MSASM,
1629
1630	/// A constant expression context.
1631	EXPR_CONSTANT,
1632
1633	/// A PredefinedExpr record.
1634	EXPR_PREDEFINED,
1635
1636	/// A DeclRefExpr record.
1637	EXPR_DECL_REF,
1638
1639	/// An IntegerLiteral record.
1640	EXPR_INTEGER_LITERAL,
1641
1642	/// A FloatingLiteral record.
1643	EXPR_FLOATING_LITERAL,
1644
1645	/// An ImaginaryLiteral record.
1646	EXPR_IMAGINARY_LITERAL,
1647
1648	/// A StringLiteral record.
1649	EXPR_STRING_LITERAL,
1650
1651	/// A CharacterLiteral record.
1652	EXPR_CHARACTER_LITERAL,
1653
1654	/// A ParenExpr record.
1655	EXPR_PAREN,
1656
1657	/// A ParenListExpr record.
1658	EXPR_PAREN_LIST,
1659
1660	/// A UnaryOperator record.
1661	EXPR_UNARY_OPERATOR,
1662
1663	/// An OffsetOfExpr record.
1664	EXPR_OFFSETOF,
1665
1666	/// A SizefAlignOfExpr record.
1667	EXPR_SIZEOF_ALIGN_OF,
1668
1669	/// An ArraySubscriptExpr record.
1670	EXPR_ARRAY_SUBSCRIPT,
1671
1672	/// A CallExpr record.
1673	EXPR_CALL,
1674
1675	/// A MemberExpr record.
1676	EXPR_MEMBER,
1677
1678	/// A BinaryOperator record.
1679	EXPR_BINARY_OPERATOR,
1680
1681	/// A CompoundAssignOperator record.
1682	EXPR_COMPOUND_ASSIGN_OPERATOR,
1683
1684	/// A ConditionOperator record.
1685	EXPR_CONDITIONAL_OPERATOR,
1686
1687	/// An ImplicitCastExpr record.
1688	EXPR_IMPLICIT_CAST,
1689
1690	/// A CStyleCastExpr record.
1691	EXPR_CSTYLE_CAST,
1692
1693	/// A CompoundLiteralExpr record.
1694	EXPR_COMPOUND_LITERAL,
1695
1696	/// An ExtVectorElementExpr record.
1697	EXPR_EXT_VECTOR_ELEMENT,
1698
1699	/// An InitListExpr record.
1700	EXPR_INIT_LIST,
1701
1702	/// A DesignatedInitExpr record.
1703	EXPR_DESIGNATED_INIT,
1704
1705	/// A DesignatedInitUpdateExpr record.
1706	EXPR_DESIGNATED_INIT_UPDATE,
1707
1708	/// An NoInitExpr record.
1709	EXPR_NO_INIT,
1710
1711	/// An ArrayInitLoopExpr record.
1712	EXPR_ARRAY_INIT_LOOP,
1713
1714	/// An ArrayInitIndexExpr record.
1715	EXPR_ARRAY_INIT_INDEX,
1716
1717	/// An ImplicitValueInitExpr record.
1718	EXPR_IMPLICIT_VALUE_INIT,
1719
1720	/// A VAArgExpr record.
1721	EXPR_VA_ARG,
1722
1723	/// An AddrLabelExpr record.
1724	EXPR_ADDR_LABEL,
1725
1726	/// A StmtExpr record.
1727	EXPR_STMT,
1728
1729	/// A ChooseExpr record.
1730	EXPR_CHOOSE,
1731
1732	/// A GNUNullExpr record.
1733	EXPR_GNU_NULL,
1734
1735	/// A ShuffleVectorExpr record.
1736	EXPR_SHUFFLE_VECTOR,
1737
1738	/// A ConvertVectorExpr record.
1739	EXPR_CONVERT_VECTOR,
1740
1741	/// BlockExpr
1742	EXPR_BLOCK,
1743
1744	/// A GenericSelectionExpr record.
1745	EXPR_GENERIC_SELECTION,
1746
1747	/// A PseudoObjectExpr record.
1748	EXPR_PSEUDO_OBJECT,
1749
1750	/// An AtomicExpr record.
1751	EXPR_ATOMIC,
1752
1753	// Objective-C
1754
1755	/// An ObjCStringLiteral record.
1756	EXPR_OBJC_STRING_LITERAL,
1757
1758	EXPR_OBJC_BOXED_EXPRESSION,
1759	EXPR_OBJC_ARRAY_LITERAL,
1760	EXPR_OBJC_DICTIONARY_LITERAL,
1761
1762	/// An ObjCEncodeExpr record.
1763	EXPR_OBJC_ENCODE,
1764
1765	/// An ObjCSelectorExpr record.
1766	EXPR_OBJC_SELECTOR_EXPR,
1767
1768	/// An ObjCProtocolExpr record.
1769	EXPR_OBJC_PROTOCOL_EXPR,
1770
1771	/// An ObjCIvarRefExpr record.
1772	EXPR_OBJC_IVAR_REF_EXPR,
1773
1774	/// An ObjCPropertyRefExpr record.
1775	EXPR_OBJC_PROPERTY_REF_EXPR,
1776
1777	/// An ObjCSubscriptRefExpr record.
1778	EXPR_OBJC_SUBSCRIPT_REF_EXPR,
1779
1780	/// UNUSED
1781	EXPR_OBJC_KVC_REF_EXPR,
1782
1783	/// An ObjCMessageExpr record.
1784	EXPR_OBJC_MESSAGE_EXPR,
1785
1786	/// An ObjCIsa Expr record.
1787	EXPR_OBJC_ISA,
1788
1789	/// An ObjCIndirectCopyRestoreExpr record.
1790	EXPR_OBJC_INDIRECT_COPY_RESTORE,
1791
1792	/// An ObjCForCollectionStmt record.
1793	STMT_OBJC_FOR_COLLECTION,
1794
1795	/// An ObjCAtCatchStmt record.
1796	STMT_OBJC_CATCH,
1797
1798	/// An ObjCAtFinallyStmt record.
1799	STMT_OBJC_FINALLY,
1800
1801	/// An ObjCAtTryStmt record.
1802	STMT_OBJC_AT_TRY,
1803
1804	/// An ObjCAtSynchronizedStmt record.
1805	STMT_OBJC_AT_SYNCHRONIZED,
1806
1807	/// An ObjCAtThrowStmt record.
1808	STMT_OBJC_AT_THROW,
1809
1810	/// An ObjCAutoreleasePoolStmt record.
1811	STMT_OBJC_AUTORELEASE_POOL,
1812
1813	/// An ObjCBoolLiteralExpr record.
1814	EXPR_OBJC_BOOL_LITERAL,
1815
1816	/// An ObjCAvailabilityCheckExpr record.
1817	EXPR_OBJC_AVAILABILITY_CHECK,
1818
1819	// C++
1820
1821	/// A CXXCatchStmt record.
1822	STMT_CXX_CATCH,
1823
1824	/// A CXXTryStmt record.
1825	STMT_CXX_TRY,
1826	/// A CXXForRangeStmt record.
1827
1828	STMT_CXX_FOR_RANGE,
1829
1830	/// A CXXOperatorCallExpr record.
1831	EXPR_CXX_OPERATOR_CALL,
1832
1833	/// A CXXMemberCallExpr record.
1834	EXPR_CXX_MEMBER_CALL,
1835
1836	/// A CXXConstructExpr record.
1837	EXPR_CXX_CONSTRUCT,
1838
1839	/// A CXXInheritedCtorInitExpr record.
1840	EXPR_CXX_INHERITED_CTOR_INIT,
1841
1842	/// A CXXTemporaryObjectExpr record.
1843	EXPR_CXX_TEMPORARY_OBJECT,
1844
1845	/// A CXXStaticCastExpr record.
1846	EXPR_CXX_STATIC_CAST,
1847
1848	/// A CXXDynamicCastExpr record.
1849	EXPR_CXX_DYNAMIC_CAST,
1850
1851	/// A CXXReinterpretCastExpr record.
1852	EXPR_CXX_REINTERPRET_CAST,
1853
1854	/// A CXXConstCastExpr record.
1855	EXPR_CXX_CONST_CAST,
1856
1857	/// A CXXFunctionalCastExpr record.
1858	EXPR_CXX_FUNCTIONAL_CAST,
1859
1860	/// A UserDefinedLiteral record.
1861	EXPR_USER_DEFINED_LITERAL,
1862
1863	/// A CXXStdInitializerListExpr record.
1864	EXPR_CXX_STD_INITIALIZER_LIST,
1865
1866	/// A CXXBoolLiteralExpr record.
1867	EXPR_CXX_BOOL_LITERAL,
1868
1869	EXPR_CXX_NULL_PTR_LITERAL, // CXXNullPtrLiteralExpr
1870	EXPR_CXX_TYPEID_EXPR, // CXXTypeidExpr (of expr).
1871	EXPR_CXX_TYPEID_TYPE, // CXXTypeidExpr (of type).
1872	EXPR_CXX_THIS, // CXXThisExpr
1873	EXPR_CXX_THROW, // CXXThrowExpr
1874	EXPR_CXX_DEFAULT_ARG, // CXXDefaultArgExpr
1875	EXPR_CXX_DEFAULT_INIT, // CXXDefaultInitExpr
1876	EXPR_CXX_BIND_TEMPORARY, // CXXBindTemporaryExpr
1877
1878	EXPR_CXX_SCALAR_VALUE_INIT, // CXXScalarValueInitExpr
1879	EXPR_CXX_NEW, // CXXNewExpr
1880	EXPR_CXX_DELETE, // CXXDeleteExpr
1881	EXPR_CXX_PSEUDO_DESTRUCTOR, // CXXPseudoDestructorExpr
1882
1883	EXPR_EXPR_WITH_CLEANUPS, // ExprWithCleanups
1884
1885	EXPR_CXX_DEPENDENT_SCOPE_MEMBER, // CXXDependentScopeMemberExpr
1886	EXPR_CXX_DEPENDENT_SCOPE_DECL_REF, // DependentScopeDeclRefExpr
1887	EXPR_CXX_UNRESOLVED_CONSTRUCT, // CXXUnresolvedConstructExpr
1888	EXPR_CXX_UNRESOLVED_MEMBER, // UnresolvedMemberExpr
1889	EXPR_CXX_UNRESOLVED_LOOKUP, // UnresolvedLookupExpr
1890
1891	EXPR_CXX_EXPRESSION_TRAIT, // ExpressionTraitExpr
1892	EXPR_CXX_NOEXCEPT, // CXXNoexceptExpr
1893
1894	EXPR_OPAQUE_VALUE, // OpaqueValueExpr
1895	EXPR_BINARY_CONDITIONAL_OPERATOR, // BinaryConditionalOperator
1896	EXPR_TYPE_TRAIT, // TypeTraitExpr
1897	EXPR_ARRAY_TYPE_TRAIT, // ArrayTypeTraitIntExpr
1898
1899	EXPR_PACK_EXPANSION, // PackExpansionExpr
1900	EXPR_SIZEOF_PACK, // SizeOfPackExpr
1901	EXPR_SUBST_NON_TYPE_TEMPLATE_PARM, // SubstNonTypeTemplateParmExpr
1902	EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK,// SubstNonTypeTemplateParmPackExpr
1903	EXPR_FUNCTION_PARM_PACK, // FunctionParmPackExpr
1904	EXPR_MATERIALIZE_TEMPORARY, // MaterializeTemporaryExpr
1905	EXPR_CXX_FOLD, // CXXFoldExpr
1906
1907	// CUDA
1908	EXPR_CUDA_KERNEL_CALL, // CUDAKernelCallExpr
1909
1910	// OpenCL
1911	EXPR_ASTYPE, // AsTypeExpr
1912
1913	// Microsoft
1914	EXPR_CXX_PROPERTY_REF_EXPR, // MSPropertyRefExpr
1915	EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR, // MSPropertySubscriptExpr
1916	EXPR_CXX_UUIDOF_EXPR, // CXXUuidofExpr (of expr).
1917	EXPR_CXX_UUIDOF_TYPE, // CXXUuidofExpr (of type).
1918	STMT_SEH_LEAVE, // SEHLeaveStmt
1919	STMT_SEH_EXCEPT, // SEHExceptStmt
1920	STMT_SEH_FINALLY, // SEHFinallyStmt
1921	STMT_SEH_TRY, // SEHTryStmt
1922
1923	// OpenMP directives
1924	STMT_OMP_PARALLEL_DIRECTIVE,
1925	STMT_OMP_SIMD_DIRECTIVE,
1926	STMT_OMP_FOR_DIRECTIVE,
1927	STMT_OMP_FOR_SIMD_DIRECTIVE,
1928	STMT_OMP_SECTIONS_DIRECTIVE,
1929	STMT_OMP_SECTION_DIRECTIVE,
1930	STMT_OMP_SINGLE_DIRECTIVE,
1931	STMT_OMP_MASTER_DIRECTIVE,
1932	STMT_OMP_CRITICAL_DIRECTIVE,
1933	STMT_OMP_PARALLEL_FOR_DIRECTIVE,
1934	STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE,
1935	STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE,
1936	STMT_OMP_TASK_DIRECTIVE,
1937	STMT_OMP_TASKYIELD_DIRECTIVE,
1938	STMT_OMP_BARRIER_DIRECTIVE,
1939	STMT_OMP_TASKWAIT_DIRECTIVE,
1940	STMT_OMP_FLUSH_DIRECTIVE,
1941	STMT_OMP_ORDERED_DIRECTIVE,
1942	STMT_OMP_ATOMIC_DIRECTIVE,
1943	STMT_OMP_TARGET_DIRECTIVE,
1944	STMT_OMP_TARGET_DATA_DIRECTIVE,
1945	STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE,
1946	STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE,
1947	STMT_OMP_TARGET_PARALLEL_DIRECTIVE,
1948	STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE,
1949	STMT_OMP_TEAMS_DIRECTIVE,
1950	STMT_OMP_TASKGROUP_DIRECTIVE,
1951	STMT_OMP_CANCELLATION_POINT_DIRECTIVE,
1952	STMT_OMP_CANCEL_DIRECTIVE,
1953	STMT_OMP_TASKLOOP_DIRECTIVE,
1954	STMT_OMP_TASKLOOP_SIMD_DIRECTIVE,
1955	STMT_OMP_DISTRIBUTE_DIRECTIVE,
1956	STMT_OMP_TARGET_UPDATE_DIRECTIVE,
1957	STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE,
1958	STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE,
1959	STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE,
1960	STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE,
1961	STMT_OMP_TARGET_SIMD_DIRECTIVE,
1962	STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE,
1963	STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE,
1964	STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE,
1965	STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE,
1966	STMT_OMP_TARGET_TEAMS_DIRECTIVE,
1967	STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE,
1968	STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE,
1969	STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE,
1970	STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE,
1971	EXPR_OMP_ARRAY_SECTION,
1972
1973	// ARC
1974	EXPR_OBJC_BRIDGED_CAST, // ObjCBridgedCastExpr
1975
1976	STMT_MS_DEPENDENT_EXISTS, // MSDependentExistsStmt
1977	EXPR_LAMBDA, // LambdaExpr
1978	STMT_COROUTINE_BODY,
1979	STMT_CORETURN,
1980	EXPR_COAWAIT,
1981	EXPR_COYIELD,
1982	EXPR_DEPENDENT_COAWAIT,
1983	};
1984
1985	/// The kinds of designators that can occur in a
1986	/// DesignatedInitExpr.
1987	enum DesignatorTypes {
1988	/// Field designator where only the field name is known.
1989	DESIG_FIELD_NAME = 0,
1990
1991	/// Field designator where the field has been resolved to
1992	/// a declaration.
1993	DESIG_FIELD_DECL = 1,
1994
1995	/// Array designator.
1996	DESIG_ARRAY = 2,
1997
1998	/// GNU array range designator.
1999	DESIG_ARRAY_RANGE = 3
2000	};
2001
2002	/// The different kinds of data that can occur in a
2003	/// CtorInitializer.
2004	enum CtorInitializerType {
2005	CTOR_INITIALIZER_BASE,
2006	CTOR_INITIALIZER_DELEGATING,
2007	CTOR_INITIALIZER_MEMBER,
2008	CTOR_INITIALIZER_INDIRECT_MEMBER
2009	};
2010
2011	/// Describes the redeclarations of a declaration.
2012	struct LocalRedeclarationsInfo {
2013	// The ID of the first declaration
2014	DeclID FirstID;
2015
2016	// Offset into the array of redeclaration chains.
2017	unsigned Offset;
2018
2019	friend bool operator<(const LocalRedeclarationsInfo &X,
2020	const LocalRedeclarationsInfo &Y) {
2021	return X.FirstID < Y.FirstID;
2022	}
2023
2024	friend bool operator>(const LocalRedeclarationsInfo &X,
2025	const LocalRedeclarationsInfo &Y) {
2026	return X.FirstID > Y.FirstID;
2027	}
2028
2029	friend bool operator<=(const LocalRedeclarationsInfo &X,
2030	const LocalRedeclarationsInfo &Y) {
2031	return X.FirstID <= Y.FirstID;
2032	}
2033
2034	friend bool operator>=(const LocalRedeclarationsInfo &X,
2035	const LocalRedeclarationsInfo &Y) {
2036	return X.FirstID >= Y.FirstID;
2037	}
2038	};
2039
2040	/// Describes the categories of an Objective-C class.
2041	struct ObjCCategoriesInfo {
2042	// The ID of the definition
2043	DeclID DefinitionID;
2044
2045	// Offset into the array of category lists.
2046	unsigned Offset;
2047
2048	friend bool operator<(const ObjCCategoriesInfo &X,
2049	const ObjCCategoriesInfo &Y) {
2050	return X.DefinitionID < Y.DefinitionID;
2051	}
2052
2053	friend bool operator>(const ObjCCategoriesInfo &X,
2054	const ObjCCategoriesInfo &Y) {
2055	return X.DefinitionID > Y.DefinitionID;
2056	}
2057
2058	friend bool operator<=(const ObjCCategoriesInfo &X,
2059	const ObjCCategoriesInfo &Y) {
2060	return X.DefinitionID <= Y.DefinitionID;
2061	}
2062
2063	friend bool operator>=(const ObjCCategoriesInfo &X,
2064	const ObjCCategoriesInfo &Y) {
2065	return X.DefinitionID >= Y.DefinitionID;
2066	}
2067	};
2068
2069	/// A key used when looking up entities by \ref DeclarationName.
2070	///
2071	/// Different \ref DeclarationNames are mapped to different keys, but the
2072	/// same key can occasionally represent multiple names (for names that
2073	/// contain types, in particular).
2074	class DeclarationNameKey {
2075	using NameKind = unsigned;
2076
2077	NameKind Kind = 0;
2078	uint64_t Data = 0;
2079
2080	public:
2081	DeclarationNameKey() = default;
2082	DeclarationNameKey(DeclarationName Name);
2083	DeclarationNameKey(NameKind Kind, uint64_t Data)
2084	: Kind(Kind), Data(Data) {}
2085
2086	NameKind getKind() const { return Kind; }
2087
2088	IdentifierInfo *getIdentifier() const {
2089	assert(Kind == DeclarationName::Identifier \|\|
2090	Kind == DeclarationName::CXXLiteralOperatorName \|\|
2091	Kind == DeclarationName::CXXDeductionGuideName);
2092	return (IdentifierInfo *)Data;
2093	}
2094
2095	Selector getSelector() const {
2096	assert(Kind == DeclarationName::ObjCZeroArgSelector \|\|
2097	Kind == DeclarationName::ObjCOneArgSelector \|\|
2098	Kind == DeclarationName::ObjCMultiArgSelector);
2099	return Selector(Data);
2100	}
2101
2102	OverloadedOperatorKind getOperatorKind() const {
2103	assert(Kind == DeclarationName::CXXOperatorName);
2104	return (OverloadedOperatorKind)Data;
2105	}
2106
2107	/// Compute a fingerprint of this key for use in on-disk hash table.
2108	unsigned getHash() const;
2109
2110	friend bool operator==(const DeclarationNameKey &A,
2111	const DeclarationNameKey &B) {
2112	return A.Kind == B.Kind && A.Data == B.Data;
2113	}
2114	};
2115
2116	/// @}
2117
2118	} // namespace serialization
2119	} // namespace clang
2120
2121	namespace llvm {
2122
2123	template <> struct DenseMapInfo<clang::serialization::DeclarationNameKey> {
2124	static clang::serialization::DeclarationNameKey getEmptyKey() {
2125	return clang::serialization::DeclarationNameKey(-1, 1);
2126	}
2127
2128	static clang::serialization::DeclarationNameKey getTombstoneKey() {
2129	return clang::serialization::DeclarationNameKey(-1, 2);
2130	}
2131
2132	static unsigned
2133	getHashValue(const clang::serialization::DeclarationNameKey &Key) {
2134	return Key.getHash();
2135	}
2136
2137	static bool isEqual(const clang::serialization::DeclarationNameKey &L,
2138	const clang::serialization::DeclarationNameKey &R) {
2139	return L == R;
2140	}
2141	};
2142
2143	} // namespace llvm
2144
2145	#endif // LLVM_CLANG_SERIALIZATION_ASTBITCODES_H
2146