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Sebastian Redl4ee2ad02010-08-18 23:56:31 +00001//===--- ASTWriter.cpp - AST File Writer ----------------------------------===//
Douglas Gregor2cf26342009-04-09 22:27:44 +00002//
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//
Sebastian Redla4232eb2010-08-18 23:56:21 +000010// This file defines the ASTWriter class, which writes AST files.
Douglas Gregor2cf26342009-04-09 22:27:44 +000011//
12//===----------------------------------------------------------------------===//
13
Sebastian Redl7faa2ec2010-08-18 23:56:37 +000014#include "clang/Serialization/ASTWriter.h"
Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +000015#include "ASTCommon.h"
Douglas Gregore737f502010-08-12 20:07:10 +000016#include "clang/Sema/Sema.h"
17#include "clang/Sema/IdentifierResolver.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000018#include "clang/AST/ASTContext.h"
19#include "clang/AST/Decl.h"
20#include "clang/AST/DeclContextInternals.h"
John McCall2a7fb272010-08-25 05:32:35 +000021#include "clang/AST/DeclTemplate.h"
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +000022#include "clang/AST/DeclFriend.h"
Douglas Gregor0b748912009-04-14 21:18:50 +000023#include "clang/AST/Expr.h"
John McCall7a1fad32010-08-24 07:32:53 +000024#include "clang/AST/ExprCXX.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000025#include "clang/AST/Type.h"
John McCalla1ee0c52009-10-16 21:56:05 +000026#include "clang/AST/TypeLocVisitor.h"
Sebastian Redl6ab7cd82010-08-18 23:57:17 +000027#include "clang/Serialization/ASTReader.h"
Chris Lattner7c5d24e2009-04-10 18:00:12 +000028#include "clang/Lex/MacroInfo.h"
Douglas Gregor6a5a23f2010-03-19 21:51:54 +000029#include "clang/Lex/PreprocessingRecord.h"
Chris Lattner7c5d24e2009-04-10 18:00:12 +000030#include "clang/Lex/Preprocessor.h"
Steve Naroff83d63c72009-04-24 20:03:17 +000031#include "clang/Lex/HeaderSearch.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000032#include "clang/Basic/FileManager.h"
Chris Lattner10e286a2010-11-23 19:19:34 +000033#include "clang/Basic/FileSystemStatCache.h"
Douglas Gregor3251ceb2009-04-20 20:36:09 +000034#include "clang/Basic/OnDiskHashTable.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000035#include "clang/Basic/SourceManager.h"
Douglas Gregorbd945002009-04-13 16:31:14 +000036#include "clang/Basic/SourceManagerInternals.h"
Douglas Gregor2bec0412009-04-10 21:16:55 +000037#include "clang/Basic/TargetInfo.h"
Douglas Gregorab41e632009-04-27 22:23:34 +000038#include "clang/Basic/Version.h"
Douglas Gregor0a0d2b12011-03-23 00:50:03 +000039#include "clang/Basic/VersionTuple.h"
Douglas Gregor17fc2232009-04-14 21:55:33 +000040#include "llvm/ADT/APFloat.h"
41#include "llvm/ADT/APInt.h"
Daniel Dunbar2596e422009-10-17 23:52:28 +000042#include "llvm/ADT/StringExtras.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000043#include "llvm/Bitcode/BitstreamWriter.h"
Michael J. Spencerfbfd1802010-12-21 16:45:57 +000044#include "llvm/Support/FileSystem.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000045#include "llvm/Support/MemoryBuffer.h"
Michael J. Spencer03013fa2010-11-29 18:12:39 +000046#include "llvm/Support/Path.h"
Douglas Gregorf62d43d2011-07-19 16:10:42 +000047#include <algorithm>
Chris Lattner3c304bd2009-04-11 18:40:46 +000048#include <cstdio>
Douglas Gregorcfbf1c72011-02-10 17:09:37 +000049#include <string.h>
Douglas Gregorf62d43d2011-07-19 16:10:42 +000050#include <utility>
Douglas Gregor2cf26342009-04-09 22:27:44 +000051using namespace clang;
Sebastian Redl8538e8d2010-08-18 23:57:32 +000052using namespace clang::serialization;
Douglas Gregor2cf26342009-04-09 22:27:44 +000053
Sebastian Redlade50002010-07-30 17:03:48 +000054template <typename T, typename Allocator>
Chris Lattner5f9e2722011-07-23 10:55:15 +000055static StringRef data(const std::vector<T, Allocator> &v) {
56 if (v.empty()) return StringRef();
57 return StringRef(reinterpret_cast<const char*>(&v[0]),
Benjamin Kramer6e089c62011-04-24 17:44:50 +000058 sizeof(T) * v.size());
Sebastian Redlade50002010-07-30 17:03:48 +000059}
Benjamin Kramer6e089c62011-04-24 17:44:50 +000060
61template <typename T>
Chris Lattner5f9e2722011-07-23 10:55:15 +000062static StringRef data(const SmallVectorImpl<T> &v) {
63 return StringRef(reinterpret_cast<const char*>(v.data()),
Benjamin Kramer6e089c62011-04-24 17:44:50 +000064 sizeof(T) * v.size());
Sebastian Redlade50002010-07-30 17:03:48 +000065}
66
Douglas Gregor2cf26342009-04-09 22:27:44 +000067//===----------------------------------------------------------------------===//
68// Type serialization
69//===----------------------------------------------------------------------===//
Chris Lattner12b1c762009-04-27 06:16:06 +000070
Douglas Gregor2cf26342009-04-09 22:27:44 +000071namespace {
Sebastian Redl3397c552010-08-18 23:56:27 +000072 class ASTTypeWriter {
Sebastian Redla4232eb2010-08-18 23:56:21 +000073 ASTWriter &Writer;
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +000074 ASTWriter::RecordDataImpl &Record;
Douglas Gregor2cf26342009-04-09 22:27:44 +000075
76 public:
77 /// \brief Type code that corresponds to the record generated.
Sebastian Redl8538e8d2010-08-18 23:57:32 +000078 TypeCode Code;
Douglas Gregor2cf26342009-04-09 22:27:44 +000079
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +000080 ASTTypeWriter(ASTWriter &Writer, ASTWriter::RecordDataImpl &Record)
Sebastian Redl8538e8d2010-08-18 23:57:32 +000081 : Writer(Writer), Record(Record), Code(TYPE_EXT_QUAL) { }
Douglas Gregor2cf26342009-04-09 22:27:44 +000082
83 void VisitArrayType(const ArrayType *T);
84 void VisitFunctionType(const FunctionType *T);
85 void VisitTagType(const TagType *T);
86
87#define TYPE(Class, Base) void Visit##Class##Type(const Class##Type *T);
88#define ABSTRACT_TYPE(Class, Base)
Douglas Gregor2cf26342009-04-09 22:27:44 +000089#include "clang/AST/TypeNodes.def"
90 };
91}
92
Sebastian Redl3397c552010-08-18 23:56:27 +000093void ASTTypeWriter::VisitBuiltinType(const BuiltinType *T) {
David Blaikieb219cfc2011-09-23 05:06:16 +000094 llvm_unreachable("Built-in types are never serialized");
Douglas Gregor2cf26342009-04-09 22:27:44 +000095}
96
Sebastian Redl3397c552010-08-18 23:56:27 +000097void ASTTypeWriter::VisitComplexType(const ComplexType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +000098 Writer.AddTypeRef(T->getElementType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +000099 Code = TYPE_COMPLEX;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000100}
101
Sebastian Redl3397c552010-08-18 23:56:27 +0000102void ASTTypeWriter::VisitPointerType(const PointerType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000103 Writer.AddTypeRef(T->getPointeeType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000104 Code = TYPE_POINTER;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000105}
106
Sebastian Redl3397c552010-08-18 23:56:27 +0000107void ASTTypeWriter::VisitBlockPointerType(const BlockPointerType *T) {
Mike Stump1eb44332009-09-09 15:08:12 +0000108 Writer.AddTypeRef(T->getPointeeType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000109 Code = TYPE_BLOCK_POINTER;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000110}
111
Sebastian Redl3397c552010-08-18 23:56:27 +0000112void ASTTypeWriter::VisitLValueReferenceType(const LValueReferenceType *T) {
Richard Smithdf1550f2011-04-12 10:38:03 +0000113 Writer.AddTypeRef(T->getPointeeTypeAsWritten(), Record);
114 Record.push_back(T->isSpelledAsLValue());
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000115 Code = TYPE_LVALUE_REFERENCE;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000116}
117
Sebastian Redl3397c552010-08-18 23:56:27 +0000118void ASTTypeWriter::VisitRValueReferenceType(const RValueReferenceType *T) {
Richard Smithdf1550f2011-04-12 10:38:03 +0000119 Writer.AddTypeRef(T->getPointeeTypeAsWritten(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000120 Code = TYPE_RVALUE_REFERENCE;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000121}
122
Sebastian Redl3397c552010-08-18 23:56:27 +0000123void ASTTypeWriter::VisitMemberPointerType(const MemberPointerType *T) {
Mike Stump1eb44332009-09-09 15:08:12 +0000124 Writer.AddTypeRef(T->getPointeeType(), Record);
125 Writer.AddTypeRef(QualType(T->getClass(), 0), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000126 Code = TYPE_MEMBER_POINTER;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000127}
128
Sebastian Redl3397c552010-08-18 23:56:27 +0000129void ASTTypeWriter::VisitArrayType(const ArrayType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000130 Writer.AddTypeRef(T->getElementType(), Record);
131 Record.push_back(T->getSizeModifier()); // FIXME: stable values
John McCall0953e762009-09-24 19:53:00 +0000132 Record.push_back(T->getIndexTypeCVRQualifiers()); // FIXME: stable values
Douglas Gregor2cf26342009-04-09 22:27:44 +0000133}
134
Sebastian Redl3397c552010-08-18 23:56:27 +0000135void ASTTypeWriter::VisitConstantArrayType(const ConstantArrayType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000136 VisitArrayType(T);
137 Writer.AddAPInt(T->getSize(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000138 Code = TYPE_CONSTANT_ARRAY;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000139}
140
Sebastian Redl3397c552010-08-18 23:56:27 +0000141void ASTTypeWriter::VisitIncompleteArrayType(const IncompleteArrayType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000142 VisitArrayType(T);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000143 Code = TYPE_INCOMPLETE_ARRAY;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000144}
145
Sebastian Redl3397c552010-08-18 23:56:27 +0000146void ASTTypeWriter::VisitVariableArrayType(const VariableArrayType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000147 VisitArrayType(T);
Douglas Gregor7e7eb3d2009-07-06 15:59:29 +0000148 Writer.AddSourceLocation(T->getLBracketLoc(), Record);
149 Writer.AddSourceLocation(T->getRBracketLoc(), Record);
Douglas Gregorc9490c02009-04-16 22:23:12 +0000150 Writer.AddStmt(T->getSizeExpr());
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000151 Code = TYPE_VARIABLE_ARRAY;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000152}
153
Sebastian Redl3397c552010-08-18 23:56:27 +0000154void ASTTypeWriter::VisitVectorType(const VectorType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000155 Writer.AddTypeRef(T->getElementType(), Record);
156 Record.push_back(T->getNumElements());
Bob Wilsone86d78c2010-11-10 21:56:12 +0000157 Record.push_back(T->getVectorKind());
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000158 Code = TYPE_VECTOR;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000159}
160
Sebastian Redl3397c552010-08-18 23:56:27 +0000161void ASTTypeWriter::VisitExtVectorType(const ExtVectorType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000162 VisitVectorType(T);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000163 Code = TYPE_EXT_VECTOR;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000164}
165
Sebastian Redl3397c552010-08-18 23:56:27 +0000166void ASTTypeWriter::VisitFunctionType(const FunctionType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000167 Writer.AddTypeRef(T->getResultType(), Record);
Rafael Espindola264ba482010-03-30 20:24:48 +0000168 FunctionType::ExtInfo C = T->getExtInfo();
169 Record.push_back(C.getNoReturn());
Eli Friedmana49218e2011-04-09 08:18:08 +0000170 Record.push_back(C.getHasRegParm());
Rafael Espindola425ef722010-03-30 22:15:11 +0000171 Record.push_back(C.getRegParm());
Douglas Gregorab8bbf42010-01-18 17:14:39 +0000172 // FIXME: need to stabilize encoding of calling convention...
Rafael Espindola264ba482010-03-30 20:24:48 +0000173 Record.push_back(C.getCC());
John McCallf85e1932011-06-15 23:02:42 +0000174 Record.push_back(C.getProducesResult());
Douglas Gregor2cf26342009-04-09 22:27:44 +0000175}
176
Sebastian Redl3397c552010-08-18 23:56:27 +0000177void ASTTypeWriter::VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000178 VisitFunctionType(T);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000179 Code = TYPE_FUNCTION_NO_PROTO;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000180}
181
Sebastian Redl3397c552010-08-18 23:56:27 +0000182void ASTTypeWriter::VisitFunctionProtoType(const FunctionProtoType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000183 VisitFunctionType(T);
184 Record.push_back(T->getNumArgs());
185 for (unsigned I = 0, N = T->getNumArgs(); I != N; ++I)
186 Writer.AddTypeRef(T->getArgType(I), Record);
187 Record.push_back(T->isVariadic());
Richard Smitheefb3d52012-02-10 09:58:53 +0000188 Record.push_back(T->hasTrailingReturn());
Douglas Gregor2cf26342009-04-09 22:27:44 +0000189 Record.push_back(T->getTypeQuals());
Douglas Gregorc938c162011-01-26 05:01:58 +0000190 Record.push_back(static_cast<unsigned>(T->getRefQualifier()));
Sebastian Redl60618fa2011-03-12 11:50:43 +0000191 Record.push_back(T->getExceptionSpecType());
192 if (T->getExceptionSpecType() == EST_Dynamic) {
193 Record.push_back(T->getNumExceptions());
194 for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
195 Writer.AddTypeRef(T->getExceptionType(I), Record);
196 } else if (T->getExceptionSpecType() == EST_ComputedNoexcept) {
197 Writer.AddStmt(T->getNoexceptExpr());
Richard Smith7bb698a2012-04-21 17:47:47 +0000198 } else if (T->getExceptionSpecType() == EST_Uninstantiated) {
199 Writer.AddDeclRef(T->getExceptionSpecDecl(), Record);
200 Writer.AddDeclRef(T->getExceptionSpecTemplate(), Record);
Sebastian Redl60618fa2011-03-12 11:50:43 +0000201 }
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000202 Code = TYPE_FUNCTION_PROTO;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000203}
204
Sebastian Redl3397c552010-08-18 23:56:27 +0000205void ASTTypeWriter::VisitUnresolvedUsingType(const UnresolvedUsingType *T) {
John McCalled976492009-12-04 22:46:56 +0000206 Writer.AddDeclRef(T->getDecl(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000207 Code = TYPE_UNRESOLVED_USING;
John McCalled976492009-12-04 22:46:56 +0000208}
John McCalled976492009-12-04 22:46:56 +0000209
Sebastian Redl3397c552010-08-18 23:56:27 +0000210void ASTTypeWriter::VisitTypedefType(const TypedefType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000211 Writer.AddDeclRef(T->getDecl(), Record);
Argyrios Kyrtzidis9763e222010-07-02 11:55:11 +0000212 assert(!T->isCanonicalUnqualified() && "Invalid typedef ?");
213 Writer.AddTypeRef(T->getCanonicalTypeInternal(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000214 Code = TYPE_TYPEDEF;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000215}
216
Sebastian Redl3397c552010-08-18 23:56:27 +0000217void ASTTypeWriter::VisitTypeOfExprType(const TypeOfExprType *T) {
Douglas Gregorc9490c02009-04-16 22:23:12 +0000218 Writer.AddStmt(T->getUnderlyingExpr());
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000219 Code = TYPE_TYPEOF_EXPR;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000220}
221
Sebastian Redl3397c552010-08-18 23:56:27 +0000222void ASTTypeWriter::VisitTypeOfType(const TypeOfType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000223 Writer.AddTypeRef(T->getUnderlyingType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000224 Code = TYPE_TYPEOF;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000225}
226
Sebastian Redl3397c552010-08-18 23:56:27 +0000227void ASTTypeWriter::VisitDecltypeType(const DecltypeType *T) {
Douglas Gregorf8af9822012-02-12 18:42:33 +0000228 Writer.AddTypeRef(T->getUnderlyingType(), Record);
Anders Carlsson395b4752009-06-24 19:06:50 +0000229 Writer.AddStmt(T->getUnderlyingExpr());
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000230 Code = TYPE_DECLTYPE;
Anders Carlsson395b4752009-06-24 19:06:50 +0000231}
232
Sean Huntca63c202011-05-24 22:41:36 +0000233void ASTTypeWriter::VisitUnaryTransformType(const UnaryTransformType *T) {
234 Writer.AddTypeRef(T->getBaseType(), Record);
235 Writer.AddTypeRef(T->getUnderlyingType(), Record);
236 Record.push_back(T->getUTTKind());
237 Code = TYPE_UNARY_TRANSFORM;
238}
239
Richard Smith34b41d92011-02-20 03:19:35 +0000240void ASTTypeWriter::VisitAutoType(const AutoType *T) {
241 Writer.AddTypeRef(T->getDeducedType(), Record);
242 Code = TYPE_AUTO;
243}
244
Sebastian Redl3397c552010-08-18 23:56:27 +0000245void ASTTypeWriter::VisitTagType(const TagType *T) {
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +0000246 Record.push_back(T->isDependentType());
Douglas Gregor56ca8a92012-01-17 19:21:53 +0000247 Writer.AddDeclRef(T->getDecl()->getCanonicalDecl(), Record);
Mike Stump1eb44332009-09-09 15:08:12 +0000248 assert(!T->isBeingDefined() &&
Douglas Gregor2cf26342009-04-09 22:27:44 +0000249 "Cannot serialize in the middle of a type definition");
250}
251
Sebastian Redl3397c552010-08-18 23:56:27 +0000252void ASTTypeWriter::VisitRecordType(const RecordType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000253 VisitTagType(T);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000254 Code = TYPE_RECORD;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000255}
256
Sebastian Redl3397c552010-08-18 23:56:27 +0000257void ASTTypeWriter::VisitEnumType(const EnumType *T) {
Douglas Gregor2cf26342009-04-09 22:27:44 +0000258 VisitTagType(T);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000259 Code = TYPE_ENUM;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000260}
261
John McCall9d156a72011-01-06 01:58:22 +0000262void ASTTypeWriter::VisitAttributedType(const AttributedType *T) {
263 Writer.AddTypeRef(T->getModifiedType(), Record);
264 Writer.AddTypeRef(T->getEquivalentType(), Record);
265 Record.push_back(T->getAttrKind());
266 Code = TYPE_ATTRIBUTED;
267}
268
Mike Stump1eb44332009-09-09 15:08:12 +0000269void
Sebastian Redl3397c552010-08-18 23:56:27 +0000270ASTTypeWriter::VisitSubstTemplateTypeParmType(
John McCall49a832b2009-10-18 09:09:24 +0000271 const SubstTemplateTypeParmType *T) {
272 Writer.AddTypeRef(QualType(T->getReplacedParameter(), 0), Record);
273 Writer.AddTypeRef(T->getReplacementType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000274 Code = TYPE_SUBST_TEMPLATE_TYPE_PARM;
John McCall49a832b2009-10-18 09:09:24 +0000275}
276
277void
Douglas Gregorc3069d62011-01-14 02:55:32 +0000278ASTTypeWriter::VisitSubstTemplateTypeParmPackType(
279 const SubstTemplateTypeParmPackType *T) {
280 Writer.AddTypeRef(QualType(T->getReplacedParameter(), 0), Record);
281 Writer.AddTemplateArgument(T->getArgumentPack(), Record);
282 Code = TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK;
283}
284
285void
Sebastian Redl3397c552010-08-18 23:56:27 +0000286ASTTypeWriter::VisitTemplateSpecializationType(
Douglas Gregor2cf26342009-04-09 22:27:44 +0000287 const TemplateSpecializationType *T) {
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +0000288 Record.push_back(T->isDependentType());
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000289 Writer.AddTemplateName(T->getTemplateName(), Record);
290 Record.push_back(T->getNumArgs());
291 for (TemplateSpecializationType::iterator ArgI = T->begin(), ArgE = T->end();
292 ArgI != ArgE; ++ArgI)
293 Writer.AddTemplateArgument(*ArgI, Record);
Richard Smith3e4c6c42011-05-05 21:57:07 +0000294 Writer.AddTypeRef(T->isTypeAlias() ? T->getAliasedType() :
295 T->isCanonicalUnqualified() ? QualType()
Argyrios Kyrtzidis9763e222010-07-02 11:55:11 +0000296 : T->getCanonicalTypeInternal(),
297 Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000298 Code = TYPE_TEMPLATE_SPECIALIZATION;
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000299}
300
301void
Sebastian Redl3397c552010-08-18 23:56:27 +0000302ASTTypeWriter::VisitDependentSizedArrayType(const DependentSizedArrayType *T) {
Argyrios Kyrtzidisae8b17f2010-06-30 08:49:25 +0000303 VisitArrayType(T);
304 Writer.AddStmt(T->getSizeExpr());
305 Writer.AddSourceRange(T->getBracketsRange(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000306 Code = TYPE_DEPENDENT_SIZED_ARRAY;
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000307}
308
309void
Sebastian Redl3397c552010-08-18 23:56:27 +0000310ASTTypeWriter::VisitDependentSizedExtVectorType(
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000311 const DependentSizedExtVectorType *T) {
312 // FIXME: Serialize this type (C++ only)
David Blaikieb219cfc2011-09-23 05:06:16 +0000313 llvm_unreachable("Cannot serialize dependent sized extended vector types");
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000314}
315
316void
Sebastian Redl3397c552010-08-18 23:56:27 +0000317ASTTypeWriter::VisitTemplateTypeParmType(const TemplateTypeParmType *T) {
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000318 Record.push_back(T->getDepth());
319 Record.push_back(T->getIndex());
320 Record.push_back(T->isParameterPack());
Chandler Carruth4fb86f82011-05-01 00:51:33 +0000321 Writer.AddDeclRef(T->getDecl(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000322 Code = TYPE_TEMPLATE_TYPE_PARM;
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000323}
324
325void
Sebastian Redl3397c552010-08-18 23:56:27 +0000326ASTTypeWriter::VisitDependentNameType(const DependentNameType *T) {
Argyrios Kyrtzidis8dfbd8b2010-06-24 08:57:31 +0000327 Record.push_back(T->getKeyword());
328 Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
329 Writer.AddIdentifierRef(T->getIdentifier(), Record);
Argyrios Kyrtzidisf48d45e2010-07-02 11:55:24 +0000330 Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType()
331 : T->getCanonicalTypeInternal(),
332 Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000333 Code = TYPE_DEPENDENT_NAME;
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000334}
335
336void
Sebastian Redl3397c552010-08-18 23:56:27 +0000337ASTTypeWriter::VisitDependentTemplateSpecializationType(
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +0000338 const DependentTemplateSpecializationType *T) {
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +0000339 Record.push_back(T->getKeyword());
340 Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
341 Writer.AddIdentifierRef(T->getIdentifier(), Record);
342 Record.push_back(T->getNumArgs());
343 for (DependentTemplateSpecializationType::iterator
344 I = T->begin(), E = T->end(); I != E; ++I)
345 Writer.AddTemplateArgument(*I, Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000346 Code = TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000347}
348
Douglas Gregor7536dd52010-12-20 02:24:11 +0000349void ASTTypeWriter::VisitPackExpansionType(const PackExpansionType *T) {
350 Writer.AddTypeRef(T->getPattern(), Record);
Douglas Gregorcded4f62011-01-14 17:04:44 +0000351 if (llvm::Optional<unsigned> NumExpansions = T->getNumExpansions())
352 Record.push_back(*NumExpansions + 1);
353 else
354 Record.push_back(0);
Douglas Gregor7536dd52010-12-20 02:24:11 +0000355 Code = TYPE_PACK_EXPANSION;
356}
357
Abramo Bagnara075f8f12010-12-10 16:29:40 +0000358void ASTTypeWriter::VisitParenType(const ParenType *T) {
359 Writer.AddTypeRef(T->getInnerType(), Record);
360 Code = TYPE_PAREN;
361}
362
Sebastian Redl3397c552010-08-18 23:56:27 +0000363void ASTTypeWriter::VisitElaboratedType(const ElaboratedType *T) {
Abramo Bagnara465d41b2010-05-11 21:36:43 +0000364 Record.push_back(T->getKeyword());
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +0000365 Writer.AddNestedNameSpecifier(T->getQualifier(), Record);
366 Writer.AddTypeRef(T->getNamedType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000367 Code = TYPE_ELABORATED;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000368}
369
Sebastian Redl3397c552010-08-18 23:56:27 +0000370void ASTTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) {
Douglas Gregora8e0b972012-03-26 15:52:37 +0000371 Writer.AddDeclRef(T->getDecl()->getCanonicalDecl(), Record);
John McCall31f17ec2010-04-27 00:57:59 +0000372 Writer.AddTypeRef(T->getInjectedSpecializationType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000373 Code = TYPE_INJECTED_CLASS_NAME;
John McCall3cb0ebd2010-03-10 03:28:59 +0000374}
375
Sebastian Redl3397c552010-08-18 23:56:27 +0000376void ASTTypeWriter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
Douglas Gregor56ca8a92012-01-17 19:21:53 +0000377 Writer.AddDeclRef(T->getDecl()->getCanonicalDecl(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000378 Code = TYPE_OBJC_INTERFACE;
John McCallc12c5bb2010-05-15 11:32:37 +0000379}
380
Sebastian Redl3397c552010-08-18 23:56:27 +0000381void ASTTypeWriter::VisitObjCObjectType(const ObjCObjectType *T) {
John McCallc12c5bb2010-05-15 11:32:37 +0000382 Writer.AddTypeRef(T->getBaseType(), Record);
Douglas Gregor2cf26342009-04-09 22:27:44 +0000383 Record.push_back(T->getNumProtocols());
John McCallc12c5bb2010-05-15 11:32:37 +0000384 for (ObjCObjectType::qual_iterator I = T->qual_begin(),
Steve Naroff446ee4e2009-05-27 16:21:00 +0000385 E = T->qual_end(); I != E; ++I)
386 Writer.AddDeclRef(*I, Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000387 Code = TYPE_OBJC_OBJECT;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000388}
389
Steve Naroffd1b3c2d2009-06-17 22:40:22 +0000390void
Sebastian Redl3397c552010-08-18 23:56:27 +0000391ASTTypeWriter::VisitObjCObjectPointerType(const ObjCObjectPointerType *T) {
Mike Stump1eb44332009-09-09 15:08:12 +0000392 Writer.AddTypeRef(T->getPointeeType(), Record);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000393 Code = TYPE_OBJC_OBJECT_POINTER;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000394}
395
Eli Friedmanb001de72011-10-06 23:00:33 +0000396void
397ASTTypeWriter::VisitAtomicType(const AtomicType *T) {
398 Writer.AddTypeRef(T->getValueType(), Record);
399 Code = TYPE_ATOMIC;
400}
401
John McCalla1ee0c52009-10-16 21:56:05 +0000402namespace {
403
404class TypeLocWriter : public TypeLocVisitor<TypeLocWriter> {
Sebastian Redla4232eb2010-08-18 23:56:21 +0000405 ASTWriter &Writer;
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000406 ASTWriter::RecordDataImpl &Record;
John McCalla1ee0c52009-10-16 21:56:05 +0000407
408public:
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000409 TypeLocWriter(ASTWriter &Writer, ASTWriter::RecordDataImpl &Record)
John McCalla1ee0c52009-10-16 21:56:05 +0000410 : Writer(Writer), Record(Record) { }
411
John McCall51bd8032009-10-18 01:05:36 +0000412#define ABSTRACT_TYPELOC(CLASS, PARENT)
John McCalla1ee0c52009-10-16 21:56:05 +0000413#define TYPELOC(CLASS, PARENT) \
John McCall51bd8032009-10-18 01:05:36 +0000414 void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
John McCalla1ee0c52009-10-16 21:56:05 +0000415#include "clang/AST/TypeLocNodes.def"
416
John McCall51bd8032009-10-18 01:05:36 +0000417 void VisitArrayTypeLoc(ArrayTypeLoc TyLoc);
418 void VisitFunctionTypeLoc(FunctionTypeLoc TyLoc);
John McCalla1ee0c52009-10-16 21:56:05 +0000419};
420
421}
422
John McCall51bd8032009-10-18 01:05:36 +0000423void TypeLocWriter::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
424 // nothing to do
John McCalla1ee0c52009-10-16 21:56:05 +0000425}
John McCall51bd8032009-10-18 01:05:36 +0000426void TypeLocWriter::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
Douglas Gregorddf889a2010-01-18 18:04:31 +0000427 Writer.AddSourceLocation(TL.getBuiltinLoc(), Record);
428 if (TL.needsExtraLocalData()) {
429 Record.push_back(TL.getWrittenTypeSpec());
430 Record.push_back(TL.getWrittenSignSpec());
431 Record.push_back(TL.getWrittenWidthSpec());
432 Record.push_back(TL.hasModeAttr());
433 }
John McCalla1ee0c52009-10-16 21:56:05 +0000434}
John McCall51bd8032009-10-18 01:05:36 +0000435void TypeLocWriter::VisitComplexTypeLoc(ComplexTypeLoc TL) {
436 Writer.AddSourceLocation(TL.getNameLoc(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000437}
John McCall51bd8032009-10-18 01:05:36 +0000438void TypeLocWriter::VisitPointerTypeLoc(PointerTypeLoc TL) {
439 Writer.AddSourceLocation(TL.getStarLoc(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000440}
John McCall51bd8032009-10-18 01:05:36 +0000441void TypeLocWriter::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
442 Writer.AddSourceLocation(TL.getCaretLoc(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000443}
John McCall51bd8032009-10-18 01:05:36 +0000444void TypeLocWriter::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
445 Writer.AddSourceLocation(TL.getAmpLoc(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000446}
John McCall51bd8032009-10-18 01:05:36 +0000447void TypeLocWriter::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
448 Writer.AddSourceLocation(TL.getAmpAmpLoc(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000449}
John McCall51bd8032009-10-18 01:05:36 +0000450void TypeLocWriter::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
451 Writer.AddSourceLocation(TL.getStarLoc(), Record);
Abramo Bagnarab6ab6c12011-03-05 14:42:21 +0000452 Writer.AddTypeSourceInfo(TL.getClassTInfo(), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000453}
John McCall51bd8032009-10-18 01:05:36 +0000454void TypeLocWriter::VisitArrayTypeLoc(ArrayTypeLoc TL) {
455 Writer.AddSourceLocation(TL.getLBracketLoc(), Record);
456 Writer.AddSourceLocation(TL.getRBracketLoc(), Record);
457 Record.push_back(TL.getSizeExpr() ? 1 : 0);
458 if (TL.getSizeExpr())
459 Writer.AddStmt(TL.getSizeExpr());
John McCalla1ee0c52009-10-16 21:56:05 +0000460}
John McCall51bd8032009-10-18 01:05:36 +0000461void TypeLocWriter::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
462 VisitArrayTypeLoc(TL);
463}
464void TypeLocWriter::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
465 VisitArrayTypeLoc(TL);
466}
467void TypeLocWriter::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
468 VisitArrayTypeLoc(TL);
469}
470void TypeLocWriter::VisitDependentSizedArrayTypeLoc(
471 DependentSizedArrayTypeLoc TL) {
472 VisitArrayTypeLoc(TL);
473}
474void TypeLocWriter::VisitDependentSizedExtVectorTypeLoc(
475 DependentSizedExtVectorTypeLoc TL) {
476 Writer.AddSourceLocation(TL.getNameLoc(), Record);
477}
478void TypeLocWriter::VisitVectorTypeLoc(VectorTypeLoc TL) {
479 Writer.AddSourceLocation(TL.getNameLoc(), Record);
480}
481void TypeLocWriter::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
482 Writer.AddSourceLocation(TL.getNameLoc(), Record);
483}
484void TypeLocWriter::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
Abramo Bagnara796aa442011-03-12 11:17:06 +0000485 Writer.AddSourceLocation(TL.getLocalRangeBegin(), Record);
486 Writer.AddSourceLocation(TL.getLocalRangeEnd(), Record);
Douglas Gregordab60ad2010-10-01 18:44:50 +0000487 Record.push_back(TL.getTrailingReturn());
John McCall51bd8032009-10-18 01:05:36 +0000488 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
489 Writer.AddDeclRef(TL.getArg(i), Record);
490}
491void TypeLocWriter::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
492 VisitFunctionTypeLoc(TL);
493}
494void TypeLocWriter::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
495 VisitFunctionTypeLoc(TL);
496}
John McCalled976492009-12-04 22:46:56 +0000497void TypeLocWriter::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
498 Writer.AddSourceLocation(TL.getNameLoc(), Record);
499}
John McCall51bd8032009-10-18 01:05:36 +0000500void TypeLocWriter::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
501 Writer.AddSourceLocation(TL.getNameLoc(), Record);
502}
503void TypeLocWriter::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
John McCallcfb708c2010-01-13 20:03:27 +0000504 Writer.AddSourceLocation(TL.getTypeofLoc(), Record);
505 Writer.AddSourceLocation(TL.getLParenLoc(), Record);
506 Writer.AddSourceLocation(TL.getRParenLoc(), Record);
John McCall51bd8032009-10-18 01:05:36 +0000507}
508void TypeLocWriter::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
John McCallcfb708c2010-01-13 20:03:27 +0000509 Writer.AddSourceLocation(TL.getTypeofLoc(), Record);
510 Writer.AddSourceLocation(TL.getLParenLoc(), Record);
511 Writer.AddSourceLocation(TL.getRParenLoc(), Record);
512 Writer.AddTypeSourceInfo(TL.getUnderlyingTInfo(), Record);
John McCall51bd8032009-10-18 01:05:36 +0000513}
514void TypeLocWriter::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
515 Writer.AddSourceLocation(TL.getNameLoc(), Record);
516}
Sean Huntca63c202011-05-24 22:41:36 +0000517void TypeLocWriter::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
518 Writer.AddSourceLocation(TL.getKWLoc(), Record);
519 Writer.AddSourceLocation(TL.getLParenLoc(), Record);
520 Writer.AddSourceLocation(TL.getRParenLoc(), Record);
521 Writer.AddTypeSourceInfo(TL.getUnderlyingTInfo(), Record);
522}
Richard Smith34b41d92011-02-20 03:19:35 +0000523void TypeLocWriter::VisitAutoTypeLoc(AutoTypeLoc TL) {
524 Writer.AddSourceLocation(TL.getNameLoc(), Record);
525}
John McCall51bd8032009-10-18 01:05:36 +0000526void TypeLocWriter::VisitRecordTypeLoc(RecordTypeLoc TL) {
527 Writer.AddSourceLocation(TL.getNameLoc(), Record);
528}
529void TypeLocWriter::VisitEnumTypeLoc(EnumTypeLoc TL) {
530 Writer.AddSourceLocation(TL.getNameLoc(), Record);
531}
John McCall9d156a72011-01-06 01:58:22 +0000532void TypeLocWriter::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
533 Writer.AddSourceLocation(TL.getAttrNameLoc(), Record);
534 if (TL.hasAttrOperand()) {
535 SourceRange range = TL.getAttrOperandParensRange();
536 Writer.AddSourceLocation(range.getBegin(), Record);
537 Writer.AddSourceLocation(range.getEnd(), Record);
538 }
539 if (TL.hasAttrExprOperand()) {
540 Expr *operand = TL.getAttrExprOperand();
541 Record.push_back(operand ? 1 : 0);
542 if (operand) Writer.AddStmt(operand);
543 } else if (TL.hasAttrEnumOperand()) {
544 Writer.AddSourceLocation(TL.getAttrEnumOperandLoc(), Record);
545 }
546}
John McCall51bd8032009-10-18 01:05:36 +0000547void TypeLocWriter::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
548 Writer.AddSourceLocation(TL.getNameLoc(), Record);
549}
John McCall49a832b2009-10-18 09:09:24 +0000550void TypeLocWriter::VisitSubstTemplateTypeParmTypeLoc(
551 SubstTemplateTypeParmTypeLoc TL) {
552 Writer.AddSourceLocation(TL.getNameLoc(), Record);
553}
Douglas Gregorc3069d62011-01-14 02:55:32 +0000554void TypeLocWriter::VisitSubstTemplateTypeParmPackTypeLoc(
555 SubstTemplateTypeParmPackTypeLoc TL) {
556 Writer.AddSourceLocation(TL.getNameLoc(), Record);
557}
John McCall51bd8032009-10-18 01:05:36 +0000558void TypeLocWriter::VisitTemplateSpecializationTypeLoc(
559 TemplateSpecializationTypeLoc TL) {
Abramo Bagnara55d23c92012-02-06 14:41:24 +0000560 Writer.AddSourceLocation(TL.getTemplateKeywordLoc(), Record);
John McCall833ca992009-10-29 08:12:44 +0000561 Writer.AddSourceLocation(TL.getTemplateNameLoc(), Record);
562 Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
563 Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
564 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +0000565 Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(i).getArgument().getKind(),
566 TL.getArgLoc(i).getLocInfo(), Record);
John McCall51bd8032009-10-18 01:05:36 +0000567}
Abramo Bagnara075f8f12010-12-10 16:29:40 +0000568void TypeLocWriter::VisitParenTypeLoc(ParenTypeLoc TL) {
569 Writer.AddSourceLocation(TL.getLParenLoc(), Record);
570 Writer.AddSourceLocation(TL.getRParenLoc(), Record);
571}
Abramo Bagnara465d41b2010-05-11 21:36:43 +0000572void TypeLocWriter::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
Abramo Bagnara38a42912012-02-06 19:09:27 +0000573 Writer.AddSourceLocation(TL.getElaboratedKeywordLoc(), Record);
Douglas Gregor9e876872011-03-01 18:12:44 +0000574 Writer.AddNestedNameSpecifierLoc(TL.getQualifierLoc(), Record);
John McCall51bd8032009-10-18 01:05:36 +0000575}
John McCall3cb0ebd2010-03-10 03:28:59 +0000576void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
577 Writer.AddSourceLocation(TL.getNameLoc(), Record);
578}
Douglas Gregor4714c122010-03-31 17:34:00 +0000579void TypeLocWriter::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
Abramo Bagnara38a42912012-02-06 19:09:27 +0000580 Writer.AddSourceLocation(TL.getElaboratedKeywordLoc(), Record);
Douglas Gregor2494dd02011-03-01 01:34:45 +0000581 Writer.AddNestedNameSpecifierLoc(TL.getQualifierLoc(), Record);
John McCall51bd8032009-10-18 01:05:36 +0000582 Writer.AddSourceLocation(TL.getNameLoc(), Record);
583}
John McCall33500952010-06-11 00:33:02 +0000584void TypeLocWriter::VisitDependentTemplateSpecializationTypeLoc(
585 DependentTemplateSpecializationTypeLoc TL) {
Abramo Bagnara55d23c92012-02-06 14:41:24 +0000586 Writer.AddSourceLocation(TL.getElaboratedKeywordLoc(), Record);
Douglas Gregor94fdffa2011-03-01 20:11:18 +0000587 Writer.AddNestedNameSpecifierLoc(TL.getQualifierLoc(), Record);
Abramo Bagnara66581d42012-02-06 22:45:07 +0000588 Writer.AddSourceLocation(TL.getTemplateKeywordLoc(), Record);
Abramo Bagnara55d23c92012-02-06 14:41:24 +0000589 Writer.AddSourceLocation(TL.getTemplateNameLoc(), Record);
John McCall33500952010-06-11 00:33:02 +0000590 Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
591 Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
592 for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +0000593 Writer.AddTemplateArgumentLocInfo(TL.getArgLoc(I).getArgument().getKind(),
594 TL.getArgLoc(I).getLocInfo(), Record);
John McCall33500952010-06-11 00:33:02 +0000595}
Douglas Gregor7536dd52010-12-20 02:24:11 +0000596void TypeLocWriter::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
597 Writer.AddSourceLocation(TL.getEllipsisLoc(), Record);
598}
John McCall51bd8032009-10-18 01:05:36 +0000599void TypeLocWriter::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
600 Writer.AddSourceLocation(TL.getNameLoc(), Record);
John McCallc12c5bb2010-05-15 11:32:37 +0000601}
602void TypeLocWriter::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
603 Record.push_back(TL.hasBaseTypeAsWritten());
John McCall51bd8032009-10-18 01:05:36 +0000604 Writer.AddSourceLocation(TL.getLAngleLoc(), Record);
605 Writer.AddSourceLocation(TL.getRAngleLoc(), Record);
606 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
607 Writer.AddSourceLocation(TL.getProtocolLoc(i), Record);
John McCalla1ee0c52009-10-16 21:56:05 +0000608}
John McCall54e14c42009-10-22 22:37:11 +0000609void TypeLocWriter::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
610 Writer.AddSourceLocation(TL.getStarLoc(), Record);
John McCall54e14c42009-10-22 22:37:11 +0000611}
Eli Friedmanb001de72011-10-06 23:00:33 +0000612void TypeLocWriter::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
613 Writer.AddSourceLocation(TL.getKWLoc(), Record);
614 Writer.AddSourceLocation(TL.getLParenLoc(), Record);
615 Writer.AddSourceLocation(TL.getRParenLoc(), Record);
616}
John McCalla1ee0c52009-10-16 21:56:05 +0000617
Chris Lattner4dcf151a2009-04-22 05:57:30 +0000618//===----------------------------------------------------------------------===//
Sebastian Redla4232eb2010-08-18 23:56:21 +0000619// ASTWriter Implementation
Douglas Gregor2cf26342009-04-09 22:27:44 +0000620//===----------------------------------------------------------------------===//
621
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000622static void EmitBlockID(unsigned ID, const char *Name,
623 llvm::BitstreamWriter &Stream,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000624 ASTWriter::RecordDataImpl &Record) {
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000625 Record.clear();
626 Record.push_back(ID);
627 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETBID, Record);
628
629 // Emit the block name if present.
630 if (Name == 0 || Name[0] == 0) return;
631 Record.clear();
632 while (*Name)
633 Record.push_back(*Name++);
634 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_BLOCKNAME, Record);
635}
636
637static void EmitRecordID(unsigned ID, const char *Name,
638 llvm::BitstreamWriter &Stream,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000639 ASTWriter::RecordDataImpl &Record) {
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000640 Record.clear();
641 Record.push_back(ID);
642 while (*Name)
643 Record.push_back(*Name++);
644 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETRECORDNAME, Record);
Chris Lattner0558df22009-04-27 00:49:53 +0000645}
646
647static void AddStmtsExprs(llvm::BitstreamWriter &Stream,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +0000648 ASTWriter::RecordDataImpl &Record) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000649#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
Chris Lattner0558df22009-04-27 00:49:53 +0000650 RECORD(STMT_STOP);
651 RECORD(STMT_NULL_PTR);
652 RECORD(STMT_NULL);
653 RECORD(STMT_COMPOUND);
654 RECORD(STMT_CASE);
655 RECORD(STMT_DEFAULT);
656 RECORD(STMT_LABEL);
Richard Smith534986f2012-04-14 00:33:13 +0000657 RECORD(STMT_ATTRIBUTED);
Chris Lattner0558df22009-04-27 00:49:53 +0000658 RECORD(STMT_IF);
659 RECORD(STMT_SWITCH);
660 RECORD(STMT_WHILE);
661 RECORD(STMT_DO);
662 RECORD(STMT_FOR);
663 RECORD(STMT_GOTO);
664 RECORD(STMT_INDIRECT_GOTO);
665 RECORD(STMT_CONTINUE);
666 RECORD(STMT_BREAK);
667 RECORD(STMT_RETURN);
668 RECORD(STMT_DECL);
669 RECORD(STMT_ASM);
670 RECORD(EXPR_PREDEFINED);
671 RECORD(EXPR_DECL_REF);
672 RECORD(EXPR_INTEGER_LITERAL);
673 RECORD(EXPR_FLOATING_LITERAL);
674 RECORD(EXPR_IMAGINARY_LITERAL);
675 RECORD(EXPR_STRING_LITERAL);
676 RECORD(EXPR_CHARACTER_LITERAL);
677 RECORD(EXPR_PAREN);
678 RECORD(EXPR_UNARY_OPERATOR);
679 RECORD(EXPR_SIZEOF_ALIGN_OF);
680 RECORD(EXPR_ARRAY_SUBSCRIPT);
681 RECORD(EXPR_CALL);
682 RECORD(EXPR_MEMBER);
683 RECORD(EXPR_BINARY_OPERATOR);
684 RECORD(EXPR_COMPOUND_ASSIGN_OPERATOR);
685 RECORD(EXPR_CONDITIONAL_OPERATOR);
686 RECORD(EXPR_IMPLICIT_CAST);
687 RECORD(EXPR_CSTYLE_CAST);
688 RECORD(EXPR_COMPOUND_LITERAL);
689 RECORD(EXPR_EXT_VECTOR_ELEMENT);
690 RECORD(EXPR_INIT_LIST);
691 RECORD(EXPR_DESIGNATED_INIT);
692 RECORD(EXPR_IMPLICIT_VALUE_INIT);
693 RECORD(EXPR_VA_ARG);
694 RECORD(EXPR_ADDR_LABEL);
695 RECORD(EXPR_STMT);
Chris Lattner0558df22009-04-27 00:49:53 +0000696 RECORD(EXPR_CHOOSE);
697 RECORD(EXPR_GNU_NULL);
698 RECORD(EXPR_SHUFFLE_VECTOR);
699 RECORD(EXPR_BLOCK);
Peter Collingbournef111d932011-04-15 00:35:48 +0000700 RECORD(EXPR_GENERIC_SELECTION);
Chris Lattner0558df22009-04-27 00:49:53 +0000701 RECORD(EXPR_OBJC_STRING_LITERAL);
Patrick Beardeb382ec2012-04-19 00:25:12 +0000702 RECORD(EXPR_OBJC_BOXED_EXPRESSION);
Ted Kremenekebcb57a2012-03-06 20:05:56 +0000703 RECORD(EXPR_OBJC_ARRAY_LITERAL);
704 RECORD(EXPR_OBJC_DICTIONARY_LITERAL);
Chris Lattner0558df22009-04-27 00:49:53 +0000705 RECORD(EXPR_OBJC_ENCODE);
706 RECORD(EXPR_OBJC_SELECTOR_EXPR);
707 RECORD(EXPR_OBJC_PROTOCOL_EXPR);
708 RECORD(EXPR_OBJC_IVAR_REF_EXPR);
709 RECORD(EXPR_OBJC_PROPERTY_REF_EXPR);
710 RECORD(EXPR_OBJC_KVC_REF_EXPR);
711 RECORD(EXPR_OBJC_MESSAGE_EXPR);
Chris Lattner0558df22009-04-27 00:49:53 +0000712 RECORD(STMT_OBJC_FOR_COLLECTION);
713 RECORD(STMT_OBJC_CATCH);
714 RECORD(STMT_OBJC_FINALLY);
715 RECORD(STMT_OBJC_AT_TRY);
716 RECORD(STMT_OBJC_AT_SYNCHRONIZED);
717 RECORD(STMT_OBJC_AT_THROW);
Ted Kremenekebcb57a2012-03-06 20:05:56 +0000718 RECORD(EXPR_OBJC_BOOL_LITERAL);
Sam Weinigeb7f9612010-02-07 06:32:43 +0000719 RECORD(EXPR_CXX_OPERATOR_CALL);
720 RECORD(EXPR_CXX_CONSTRUCT);
721 RECORD(EXPR_CXX_STATIC_CAST);
722 RECORD(EXPR_CXX_DYNAMIC_CAST);
723 RECORD(EXPR_CXX_REINTERPRET_CAST);
724 RECORD(EXPR_CXX_CONST_CAST);
725 RECORD(EXPR_CXX_FUNCTIONAL_CAST);
Richard Smith9fcce652012-03-07 08:35:16 +0000726 RECORD(EXPR_USER_DEFINED_LITERAL);
Sam Weinigeb7f9612010-02-07 06:32:43 +0000727 RECORD(EXPR_CXX_BOOL_LITERAL);
728 RECORD(EXPR_CXX_NULL_PTR_LITERAL);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000729 RECORD(EXPR_CXX_TYPEID_EXPR);
730 RECORD(EXPR_CXX_TYPEID_TYPE);
731 RECORD(EXPR_CXX_UUIDOF_EXPR);
732 RECORD(EXPR_CXX_UUIDOF_TYPE);
733 RECORD(EXPR_CXX_THIS);
734 RECORD(EXPR_CXX_THROW);
735 RECORD(EXPR_CXX_DEFAULT_ARG);
736 RECORD(EXPR_CXX_BIND_TEMPORARY);
737 RECORD(EXPR_CXX_SCALAR_VALUE_INIT);
738 RECORD(EXPR_CXX_NEW);
739 RECORD(EXPR_CXX_DELETE);
740 RECORD(EXPR_CXX_PSEUDO_DESTRUCTOR);
741 RECORD(EXPR_EXPR_WITH_CLEANUPS);
742 RECORD(EXPR_CXX_DEPENDENT_SCOPE_MEMBER);
743 RECORD(EXPR_CXX_DEPENDENT_SCOPE_DECL_REF);
744 RECORD(EXPR_CXX_UNRESOLVED_CONSTRUCT);
745 RECORD(EXPR_CXX_UNRESOLVED_MEMBER);
746 RECORD(EXPR_CXX_UNRESOLVED_LOOKUP);
747 RECORD(EXPR_CXX_UNARY_TYPE_TRAIT);
748 RECORD(EXPR_CXX_NOEXCEPT);
749 RECORD(EXPR_OPAQUE_VALUE);
750 RECORD(EXPR_BINARY_TYPE_TRAIT);
751 RECORD(EXPR_PACK_EXPANSION);
752 RECORD(EXPR_SIZEOF_PACK);
753 RECORD(EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK);
Peter Collingbournee08ce652011-02-09 21:07:24 +0000754 RECORD(EXPR_CUDA_KERNEL_CALL);
Chris Lattner0558df22009-04-27 00:49:53 +0000755#undef RECORD
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000756}
Mike Stump1eb44332009-09-09 15:08:12 +0000757
Sebastian Redla4232eb2010-08-18 23:56:21 +0000758void ASTWriter::WriteBlockInfoBlock() {
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000759 RecordData Record;
760 Stream.EnterSubblock(llvm::bitc::BLOCKINFO_BLOCK_ID, 3);
Mike Stump1eb44332009-09-09 15:08:12 +0000761
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000762#define BLOCK(X) EmitBlockID(X ## _ID, #X, Stream, Record)
763#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
Mike Stump1eb44332009-09-09 15:08:12 +0000764
Sebastian Redl3397c552010-08-18 23:56:27 +0000765 // AST Top-Level Block.
Sebastian Redlf29f0a22010-08-18 23:57:22 +0000766 BLOCK(AST_BLOCK);
Zhongxing Xu51e774d2009-06-03 09:23:28 +0000767 RECORD(ORIGINAL_FILE_NAME);
Douglas Gregor31d375f2011-05-06 21:43:30 +0000768 RECORD(ORIGINAL_FILE_ID);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000769 RECORD(TYPE_OFFSET);
770 RECORD(DECL_OFFSET);
771 RECORD(LANGUAGE_OPTIONS);
Douglas Gregorab41e632009-04-27 22:23:34 +0000772 RECORD(METADATA);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000773 RECORD(IDENTIFIER_OFFSET);
774 RECORD(IDENTIFIER_TABLE);
775 RECORD(EXTERNAL_DEFINITIONS);
776 RECORD(SPECIAL_TYPES);
777 RECORD(STATISTICS);
778 RECORD(TENTATIVE_DEFINITIONS);
Argyrios Kyrtzidis49b96d12010-08-13 18:42:17 +0000779 RECORD(UNUSED_FILESCOPED_DECLS);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000780 RECORD(LOCALLY_SCOPED_EXTERNAL_DECLS);
781 RECORD(SELECTOR_OFFSETS);
782 RECORD(METHOD_POOL);
783 RECORD(PP_COUNTER_VALUE);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +0000784 RECORD(SOURCE_LOCATION_OFFSETS);
785 RECORD(SOURCE_LOCATION_PRELOADS);
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000786 RECORD(STAT_CACHE);
Douglas Gregorb81c1702009-04-27 20:06:05 +0000787 RECORD(EXT_VECTOR_DECLS);
Ted Kremenek5b4ec632010-01-22 20:59:36 +0000788 RECORD(VERSION_CONTROL_BRANCH_REVISION);
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +0000789 RECORD(PPD_ENTITIES_OFFSETS);
Douglas Gregore95b9192011-08-17 21:07:30 +0000790 RECORD(IMPORTS);
Fariborz Jahanian32019832010-07-23 19:11:11 +0000791 RECORD(REFERENCED_SELECTOR_POOL);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000792 RECORD(TU_UPDATE_LEXICAL);
Douglas Gregor2171bf12012-01-15 16:58:34 +0000793 RECORD(LOCAL_REDECLARATIONS_MAP);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000794 RECORD(SEMA_DECL_REFS);
795 RECORD(WEAK_UNDECLARED_IDENTIFIERS);
796 RECORD(PENDING_IMPLICIT_INSTANTIATIONS);
797 RECORD(DECL_REPLACEMENTS);
798 RECORD(UPDATE_VISIBLE);
799 RECORD(DECL_UPDATE_OFFSETS);
800 RECORD(DECL_UPDATES);
801 RECORD(CXX_BASE_SPECIFIER_OFFSETS);
802 RECORD(DIAG_PRAGMA_MAPPINGS);
Peter Collingbourne84bccea2011-02-15 19:46:30 +0000803 RECORD(CUDA_SPECIAL_DECL_REFS);
Douglas Gregorcfbf1c72011-02-10 17:09:37 +0000804 RECORD(HEADER_SEARCH_TABLE);
Douglas Gregor837593f2011-08-04 16:39:39 +0000805 RECORD(ORIGINAL_PCH_DIR);
Peter Collingbourne84bccea2011-02-15 19:46:30 +0000806 RECORD(FP_PRAGMA_OPTIONS);
807 RECORD(OPENCL_EXTENSIONS);
Sean Huntebcbe1d2011-05-04 23:29:54 +0000808 RECORD(DELEGATING_CTORS);
Douglas Gregord8bba9c2011-06-28 16:20:02 +0000809 RECORD(FILE_SOURCE_LOCATION_OFFSETS);
810 RECORD(KNOWN_NAMESPACES);
Douglas Gregor837593f2011-08-04 16:39:39 +0000811 RECORD(MODULE_OFFSET_MAP);
812 RECORD(SOURCE_MANAGER_LINE_TABLE);
Douglas Gregorcff9f262012-01-27 01:47:08 +0000813 RECORD(OBJC_CATEGORIES_MAP);
Douglas Gregora1266512011-12-19 21:09:25 +0000814 RECORD(FILE_SORTED_DECLS);
815 RECORD(IMPORTED_MODULES);
Douglas Gregor2171bf12012-01-15 16:58:34 +0000816 RECORD(MERGED_DECLARATIONS);
817 RECORD(LOCAL_REDECLARATIONS);
Douglas Gregorcff9f262012-01-27 01:47:08 +0000818 RECORD(OBJC_CATEGORIES);
Douglas Gregor2171bf12012-01-15 16:58:34 +0000819
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000820 // SourceManager Block.
Chris Lattner2f4efd12009-04-27 00:40:25 +0000821 BLOCK(SOURCE_MANAGER_BLOCK);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000822 RECORD(SM_SLOC_FILE_ENTRY);
823 RECORD(SM_SLOC_BUFFER_ENTRY);
824 RECORD(SM_SLOC_BUFFER_BLOB);
Chandler Carruthf70d12d2011-07-15 07:25:21 +0000825 RECORD(SM_SLOC_EXPANSION_ENTRY);
Mike Stump1eb44332009-09-09 15:08:12 +0000826
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000827 // Preprocessor Block.
Chris Lattner2f4efd12009-04-27 00:40:25 +0000828 BLOCK(PREPROCESSOR_BLOCK);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000829 RECORD(PP_MACRO_OBJECT_LIKE);
830 RECORD(PP_MACRO_FUNCTION_LIKE);
831 RECORD(PP_TOKEN);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000832
Douglas Gregor61d60ee2009-10-17 00:13:19 +0000833 // Decls and Types block.
834 BLOCK(DECLTYPES_BLOCK);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000835 RECORD(TYPE_EXT_QUAL);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000836 RECORD(TYPE_COMPLEX);
837 RECORD(TYPE_POINTER);
838 RECORD(TYPE_BLOCK_POINTER);
839 RECORD(TYPE_LVALUE_REFERENCE);
840 RECORD(TYPE_RVALUE_REFERENCE);
841 RECORD(TYPE_MEMBER_POINTER);
842 RECORD(TYPE_CONSTANT_ARRAY);
843 RECORD(TYPE_INCOMPLETE_ARRAY);
844 RECORD(TYPE_VARIABLE_ARRAY);
845 RECORD(TYPE_VECTOR);
846 RECORD(TYPE_EXT_VECTOR);
847 RECORD(TYPE_FUNCTION_PROTO);
848 RECORD(TYPE_FUNCTION_NO_PROTO);
849 RECORD(TYPE_TYPEDEF);
850 RECORD(TYPE_TYPEOF_EXPR);
851 RECORD(TYPE_TYPEOF);
852 RECORD(TYPE_RECORD);
853 RECORD(TYPE_ENUM);
854 RECORD(TYPE_OBJC_INTERFACE);
John McCalla53d2cb2010-05-16 02:12:35 +0000855 RECORD(TYPE_OBJC_OBJECT);
Steve Naroffd1b3c2d2009-06-17 22:40:22 +0000856 RECORD(TYPE_OBJC_OBJECT_POINTER);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000857 RECORD(TYPE_DECLTYPE);
858 RECORD(TYPE_ELABORATED);
859 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM);
860 RECORD(TYPE_UNRESOLVED_USING);
861 RECORD(TYPE_INJECTED_CLASS_NAME);
862 RECORD(TYPE_OBJC_OBJECT);
863 RECORD(TYPE_TEMPLATE_TYPE_PARM);
864 RECORD(TYPE_TEMPLATE_SPECIALIZATION);
865 RECORD(TYPE_DEPENDENT_NAME);
866 RECORD(TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION);
867 RECORD(TYPE_DEPENDENT_SIZED_ARRAY);
868 RECORD(TYPE_PAREN);
869 RECORD(TYPE_PACK_EXPANSION);
870 RECORD(TYPE_ATTRIBUTED);
871 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK);
Eli Friedmanb001de72011-10-06 23:00:33 +0000872 RECORD(TYPE_ATOMIC);
Chris Lattner0ff8cda2009-04-26 22:32:16 +0000873 RECORD(DECL_TYPEDEF);
874 RECORD(DECL_ENUM);
875 RECORD(DECL_RECORD);
876 RECORD(DECL_ENUM_CONSTANT);
877 RECORD(DECL_FUNCTION);
878 RECORD(DECL_OBJC_METHOD);
879 RECORD(DECL_OBJC_INTERFACE);
880 RECORD(DECL_OBJC_PROTOCOL);
881 RECORD(DECL_OBJC_IVAR);
882 RECORD(DECL_OBJC_AT_DEFS_FIELD);
Chris Lattner0ff8cda2009-04-26 22:32:16 +0000883 RECORD(DECL_OBJC_CATEGORY);
884 RECORD(DECL_OBJC_CATEGORY_IMPL);
885 RECORD(DECL_OBJC_IMPLEMENTATION);
886 RECORD(DECL_OBJC_COMPATIBLE_ALIAS);
887 RECORD(DECL_OBJC_PROPERTY);
888 RECORD(DECL_OBJC_PROPERTY_IMPL);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000889 RECORD(DECL_FIELD);
890 RECORD(DECL_VAR);
Chris Lattner0ff8cda2009-04-26 22:32:16 +0000891 RECORD(DECL_IMPLICIT_PARAM);
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000892 RECORD(DECL_PARM_VAR);
Chris Lattner0ff8cda2009-04-26 22:32:16 +0000893 RECORD(DECL_FILE_SCOPE_ASM);
894 RECORD(DECL_BLOCK);
895 RECORD(DECL_CONTEXT_LEXICAL);
896 RECORD(DECL_CONTEXT_VISIBLE);
Douglas Gregorb6c2b3f2011-02-08 16:34:17 +0000897 RECORD(DECL_NAMESPACE);
898 RECORD(DECL_NAMESPACE_ALIAS);
899 RECORD(DECL_USING);
900 RECORD(DECL_USING_SHADOW);
901 RECORD(DECL_USING_DIRECTIVE);
902 RECORD(DECL_UNRESOLVED_USING_VALUE);
903 RECORD(DECL_UNRESOLVED_USING_TYPENAME);
904 RECORD(DECL_LINKAGE_SPEC);
905 RECORD(DECL_CXX_RECORD);
906 RECORD(DECL_CXX_METHOD);
907 RECORD(DECL_CXX_CONSTRUCTOR);
908 RECORD(DECL_CXX_DESTRUCTOR);
909 RECORD(DECL_CXX_CONVERSION);
910 RECORD(DECL_ACCESS_SPEC);
911 RECORD(DECL_FRIEND);
912 RECORD(DECL_FRIEND_TEMPLATE);
913 RECORD(DECL_CLASS_TEMPLATE);
914 RECORD(DECL_CLASS_TEMPLATE_SPECIALIZATION);
915 RECORD(DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION);
916 RECORD(DECL_FUNCTION_TEMPLATE);
917 RECORD(DECL_TEMPLATE_TYPE_PARM);
918 RECORD(DECL_NON_TYPE_TEMPLATE_PARM);
919 RECORD(DECL_TEMPLATE_TEMPLATE_PARM);
920 RECORD(DECL_STATIC_ASSERT);
921 RECORD(DECL_CXX_BASE_SPECIFIERS);
922 RECORD(DECL_INDIRECTFIELD);
923 RECORD(DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK);
924
Douglas Gregora72d8c42011-06-03 02:27:19 +0000925 // Statements and Exprs can occur in the Decls and Types block.
926 AddStmtsExprs(Stream, Record);
927
Douglas Gregor4800a5c2011-02-08 21:58:10 +0000928 BLOCK(PREPROCESSOR_DETAIL_BLOCK);
Chandler Carruthf70d12d2011-07-15 07:25:21 +0000929 RECORD(PPD_MACRO_EXPANSION);
Douglas Gregor4800a5c2011-02-08 21:58:10 +0000930 RECORD(PPD_MACRO_DEFINITION);
931 RECORD(PPD_INCLUSION_DIRECTIVE);
932
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000933#undef RECORD
934#undef BLOCK
935 Stream.ExitBlock();
936}
937
Douglas Gregore650c8c2009-07-07 00:12:59 +0000938/// \brief Adjusts the given filename to only write out the portion of the
939/// filename that is not part of the system root directory.
Mike Stump1eb44332009-09-09 15:08:12 +0000940///
Douglas Gregore650c8c2009-07-07 00:12:59 +0000941/// \param Filename the file name to adjust.
942///
943/// \param isysroot When non-NULL, the PCH file is a relocatable PCH file and
944/// the returned filename will be adjusted by this system root.
945///
946/// \returns either the original filename (if it needs no adjustment) or the
947/// adjusted filename (which points into the @p Filename parameter).
Mike Stump1eb44332009-09-09 15:08:12 +0000948static const char *
Douglas Gregor832d6202011-07-22 16:35:34 +0000949adjustFilenameForRelocatablePCH(const char *Filename, StringRef isysroot) {
Douglas Gregore650c8c2009-07-07 00:12:59 +0000950 assert(Filename && "No file name to adjust?");
Mike Stump1eb44332009-09-09 15:08:12 +0000951
Douglas Gregor832d6202011-07-22 16:35:34 +0000952 if (isysroot.empty())
Douglas Gregore650c8c2009-07-07 00:12:59 +0000953 return Filename;
Mike Stump1eb44332009-09-09 15:08:12 +0000954
Douglas Gregore650c8c2009-07-07 00:12:59 +0000955 // Verify that the filename and the system root have the same prefix.
956 unsigned Pos = 0;
Douglas Gregor832d6202011-07-22 16:35:34 +0000957 for (; Filename[Pos] && Pos < isysroot.size(); ++Pos)
Douglas Gregore650c8c2009-07-07 00:12:59 +0000958 if (Filename[Pos] != isysroot[Pos])
959 return Filename; // Prefixes don't match.
Mike Stump1eb44332009-09-09 15:08:12 +0000960
Douglas Gregore650c8c2009-07-07 00:12:59 +0000961 // We hit the end of the filename before we hit the end of the system root.
962 if (!Filename[Pos])
963 return Filename;
Mike Stump1eb44332009-09-09 15:08:12 +0000964
Douglas Gregore650c8c2009-07-07 00:12:59 +0000965 // If the file name has a '/' at the current position, skip over the '/'.
966 // We distinguish sysroot-based includes from absolute includes by the
967 // absence of '/' at the beginning of sysroot-based includes.
968 if (Filename[Pos] == '/')
969 ++Pos;
Mike Stump1eb44332009-09-09 15:08:12 +0000970
Douglas Gregore650c8c2009-07-07 00:12:59 +0000971 return Filename + Pos;
972}
Chris Lattnerb145b1e2009-04-26 22:26:21 +0000973
Sebastian Redl3397c552010-08-18 23:56:27 +0000974/// \brief Write the AST metadata (e.g., i686-apple-darwin9).
Douglas Gregor832d6202011-07-22 16:35:34 +0000975void ASTWriter::WriteMetadata(ASTContext &Context, StringRef isysroot,
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +0000976 const std::string &OutputFile) {
Douglas Gregor2bec0412009-04-10 21:16:55 +0000977 using namespace llvm;
Douglas Gregorb64c1932009-05-12 01:31:05 +0000978
Douglas Gregore650c8c2009-07-07 00:12:59 +0000979 // Metadata
Douglas Gregorbcfd1f52011-09-02 00:18:52 +0000980 const TargetInfo &Target = Context.getTargetInfo();
Douglas Gregore650c8c2009-07-07 00:12:59 +0000981 BitCodeAbbrev *MetaAbbrev = new BitCodeAbbrev();
Douglas Gregore95b9192011-08-17 21:07:30 +0000982 MetaAbbrev->Add(BitCodeAbbrevOp(METADATA));
Sebastian Redl3397c552010-08-18 23:56:27 +0000983 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // AST major
984 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // AST minor
Douglas Gregore650c8c2009-07-07 00:12:59 +0000985 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang major
986 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang minor
987 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Relocatable
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +0000988 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Has errors
Douglas Gregore95b9192011-08-17 21:07:30 +0000989 MetaAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Target triple
Douglas Gregore650c8c2009-07-07 00:12:59 +0000990 unsigned MetaAbbrevCode = Stream.EmitAbbrev(MetaAbbrev);
Mike Stump1eb44332009-09-09 15:08:12 +0000991
Douglas Gregore650c8c2009-07-07 00:12:59 +0000992 RecordData Record;
Douglas Gregore95b9192011-08-17 21:07:30 +0000993 Record.push_back(METADATA);
Sebastian Redl8538e8d2010-08-18 23:57:32 +0000994 Record.push_back(VERSION_MAJOR);
995 Record.push_back(VERSION_MINOR);
Douglas Gregore650c8c2009-07-07 00:12:59 +0000996 Record.push_back(CLANG_VERSION_MAJOR);
997 Record.push_back(CLANG_VERSION_MINOR);
Douglas Gregor832d6202011-07-22 16:35:34 +0000998 Record.push_back(!isysroot.empty());
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +0000999 Record.push_back(ASTHasCompilerErrors);
Douglas Gregore95b9192011-08-17 21:07:30 +00001000 const std::string &Triple = Target.getTriple().getTriple();
1001 Stream.EmitRecordWithBlob(MetaAbbrevCode, Record, Triple);
1002
1003 if (Chain) {
Douglas Gregore95b9192011-08-17 21:07:30 +00001004 serialization::ModuleManager &Mgr = Chain->getModuleManager();
1005 llvm::SmallVector<char, 128> ModulePaths;
1006 Record.clear();
Douglas Gregor10bc00f2011-08-18 04:12:04 +00001007
1008 for (ModuleManager::ModuleIterator M = Mgr.begin(), MEnd = Mgr.end();
1009 M != MEnd; ++M) {
1010 // Skip modules that weren't directly imported.
1011 if (!(*M)->isDirectlyImported())
1012 continue;
1013
1014 Record.push_back((unsigned)(*M)->Kind); // FIXME: Stable encoding
1015 // FIXME: Write import location, once it matters.
1016 // FIXME: This writes the absolute path for AST files we depend on.
1017 const std::string &FileName = (*M)->FileName;
1018 Record.push_back(FileName.size());
1019 Record.append(FileName.begin(), FileName.end());
1020 }
Douglas Gregore95b9192011-08-17 21:07:30 +00001021 Stream.EmitRecord(IMPORTS, Record);
1022 }
Mike Stump1eb44332009-09-09 15:08:12 +00001023
Douglas Gregor31d375f2011-05-06 21:43:30 +00001024 // Original file name and file ID
Douglas Gregorb64c1932009-05-12 01:31:05 +00001025 SourceManager &SM = Context.getSourceManager();
1026 if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
1027 BitCodeAbbrev *FileAbbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001028 FileAbbrev->Add(BitCodeAbbrevOp(ORIGINAL_FILE_NAME));
Douglas Gregorb64c1932009-05-12 01:31:05 +00001029 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1030 unsigned FileAbbrevCode = Stream.EmitAbbrev(FileAbbrev);
1031
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001032 SmallString<128> MainFilePath(MainFile->getName());
Mike Stump1eb44332009-09-09 15:08:12 +00001033
Michael J. Spencerfbfd1802010-12-21 16:45:57 +00001034 llvm::sys::fs::make_absolute(MainFilePath);
Douglas Gregorb64c1932009-05-12 01:31:05 +00001035
Kovarththanan Rajaratnamaba54a92010-03-14 07:15:57 +00001036 const char *MainFileNameStr = MainFilePath.c_str();
Mike Stump1eb44332009-09-09 15:08:12 +00001037 MainFileNameStr = adjustFilenameForRelocatablePCH(MainFileNameStr,
Douglas Gregore650c8c2009-07-07 00:12:59 +00001038 isysroot);
Douglas Gregorb64c1932009-05-12 01:31:05 +00001039 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001040 Record.push_back(ORIGINAL_FILE_NAME);
Daniel Dunbarec312a12009-08-24 09:31:37 +00001041 Stream.EmitRecordWithBlob(FileAbbrevCode, Record, MainFileNameStr);
Douglas Gregor31d375f2011-05-06 21:43:30 +00001042
1043 Record.clear();
1044 Record.push_back(SM.getMainFileID().getOpaqueValue());
1045 Stream.EmitRecord(ORIGINAL_FILE_ID, Record);
Douglas Gregorb64c1932009-05-12 01:31:05 +00001046 }
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00001047
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001048 // Original PCH directory
1049 if (!OutputFile.empty() && OutputFile != "-") {
1050 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
1051 Abbrev->Add(BitCodeAbbrevOp(ORIGINAL_PCH_DIR));
1052 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1053 unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
1054
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001055 SmallString<128> OutputPath(OutputFile);
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001056
1057 llvm::sys::fs::make_absolute(OutputPath);
1058 StringRef origDir = llvm::sys::path::parent_path(OutputPath);
1059
1060 RecordData Record;
1061 Record.push_back(ORIGINAL_PCH_DIR);
1062 Stream.EmitRecordWithBlob(AbbrevCode, Record, origDir);
1063 }
1064
Ted Kremenekf7a96a32010-01-22 22:12:47 +00001065 // Repository branch/version information.
1066 BitCodeAbbrev *RepoAbbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001067 RepoAbbrev->Add(BitCodeAbbrevOp(VERSION_CONTROL_BRANCH_REVISION));
Ted Kremenekf7a96a32010-01-22 22:12:47 +00001068 RepoAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN branch/tag
1069 unsigned RepoAbbrevCode = Stream.EmitAbbrev(RepoAbbrev);
Douglas Gregor445e23e2009-10-05 21:07:28 +00001070 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001071 Record.push_back(VERSION_CONTROL_BRANCH_REVISION);
Ted Kremenekf7a96a32010-01-22 22:12:47 +00001072 Stream.EmitRecordWithBlob(RepoAbbrevCode, Record,
1073 getClangFullRepositoryVersion());
Douglas Gregor2bec0412009-04-10 21:16:55 +00001074}
1075
1076/// \brief Write the LangOptions structure.
Sebastian Redla4232eb2010-08-18 23:56:21 +00001077void ASTWriter::WriteLanguageOptions(const LangOptions &LangOpts) {
Douglas Gregor0a0428e2009-04-10 20:39:37 +00001078 RecordData Record;
Douglas Gregor7d5e81b2011-09-13 18:26:39 +00001079#define LANGOPT(Name, Bits, Default, Description) \
1080 Record.push_back(LangOpts.Name);
1081#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1082 Record.push_back(static_cast<unsigned>(LangOpts.get##Name()));
1083#include "clang/Basic/LangOptions.def"
Douglas Gregorb86b8dc2011-11-15 19:35:01 +00001084
1085 Record.push_back(LangOpts.CurrentModule.size());
1086 Record.append(LangOpts.CurrentModule.begin(), LangOpts.CurrentModule.end());
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001087 Stream.EmitRecord(LANGUAGE_OPTIONS, Record);
Douglas Gregor0a0428e2009-04-10 20:39:37 +00001088}
1089
Douglas Gregor14f79002009-04-10 03:52:48 +00001090//===----------------------------------------------------------------------===//
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001091// stat cache Serialization
1092//===----------------------------------------------------------------------===//
1093
1094namespace {
1095// Trait used for the on-disk hash table of stat cache results.
Sebastian Redl3397c552010-08-18 23:56:27 +00001096class ASTStatCacheTrait {
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001097public:
1098 typedef const char * key_type;
1099 typedef key_type key_type_ref;
Mike Stump1eb44332009-09-09 15:08:12 +00001100
Chris Lattner74e976b2010-11-23 19:28:12 +00001101 typedef struct stat data_type;
1102 typedef const data_type &data_type_ref;
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001103
1104 static unsigned ComputeHash(const char *path) {
Daniel Dunbar2596e422009-10-17 23:52:28 +00001105 return llvm::HashString(path);
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001106 }
Mike Stump1eb44332009-09-09 15:08:12 +00001107
1108 std::pair<unsigned,unsigned>
Chris Lattner5f9e2722011-07-23 10:55:15 +00001109 EmitKeyDataLength(raw_ostream& Out, const char *path,
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001110 data_type_ref Data) {
1111 unsigned StrLen = strlen(path);
1112 clang::io::Emit16(Out, StrLen);
Chris Lattner74e976b2010-11-23 19:28:12 +00001113 unsigned DataLen = 4 + 4 + 2 + 8 + 8;
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001114 clang::io::Emit8(Out, DataLen);
1115 return std::make_pair(StrLen + 1, DataLen);
1116 }
Mike Stump1eb44332009-09-09 15:08:12 +00001117
Chris Lattner5f9e2722011-07-23 10:55:15 +00001118 void EmitKey(raw_ostream& Out, const char *path, unsigned KeyLen) {
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001119 Out.write(path, KeyLen);
1120 }
Mike Stump1eb44332009-09-09 15:08:12 +00001121
Chris Lattner5f9e2722011-07-23 10:55:15 +00001122 void EmitData(raw_ostream &Out, key_type_ref,
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001123 data_type_ref Data, unsigned DataLen) {
1124 using namespace clang::io;
1125 uint64_t Start = Out.tell(); (void)Start;
Mike Stump1eb44332009-09-09 15:08:12 +00001126
Chris Lattner74e976b2010-11-23 19:28:12 +00001127 Emit32(Out, (uint32_t) Data.st_ino);
1128 Emit32(Out, (uint32_t) Data.st_dev);
1129 Emit16(Out, (uint16_t) Data.st_mode);
1130 Emit64(Out, (uint64_t) Data.st_mtime);
1131 Emit64(Out, (uint64_t) Data.st_size);
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001132
1133 assert(Out.tell() - Start == DataLen && "Wrong data length");
1134 }
1135};
1136} // end anonymous namespace
1137
Sebastian Redl3397c552010-08-18 23:56:27 +00001138/// \brief Write the stat() system call cache to the AST file.
Sebastian Redla4232eb2010-08-18 23:56:21 +00001139void ASTWriter::WriteStatCache(MemorizeStatCalls &StatCalls) {
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001140 // Build the on-disk hash table containing information about every
1141 // stat() call.
Sebastian Redl3397c552010-08-18 23:56:27 +00001142 OnDiskChainedHashTableGenerator<ASTStatCacheTrait> Generator;
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001143 unsigned NumStatEntries = 0;
Mike Stump1eb44332009-09-09 15:08:12 +00001144 for (MemorizeStatCalls::iterator Stat = StatCalls.begin(),
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001145 StatEnd = StatCalls.end();
Douglas Gregore650c8c2009-07-07 00:12:59 +00001146 Stat != StatEnd; ++Stat, ++NumStatEntries) {
Chris Lattner5f9e2722011-07-23 10:55:15 +00001147 StringRef Filename = Stat->first();
Chris Lattner1e5f83b2011-07-14 18:24:21 +00001148 Generator.insert(Filename.data(), Stat->second);
Douglas Gregore650c8c2009-07-07 00:12:59 +00001149 }
Mike Stump1eb44332009-09-09 15:08:12 +00001150
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001151 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001152 SmallString<4096> StatCacheData;
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001153 uint32_t BucketOffset;
1154 {
1155 llvm::raw_svector_ostream Out(StatCacheData);
1156 // Make sure that no bucket is at offset 0
1157 clang::io::Emit32(Out, 0);
1158 BucketOffset = Generator.Emit(Out);
1159 }
1160
1161 // Create a blob abbreviation
1162 using namespace llvm;
1163 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001164 Abbrev->Add(BitCodeAbbrevOp(STAT_CACHE));
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001165 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1166 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1167 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1168 unsigned StatCacheAbbrev = Stream.EmitAbbrev(Abbrev);
1169
1170 // Write the stat cache
1171 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001172 Record.push_back(STAT_CACHE);
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001173 Record.push_back(BucketOffset);
1174 Record.push_back(NumStatEntries);
Daniel Dunbarec312a12009-08-24 09:31:37 +00001175 Stream.EmitRecordWithBlob(StatCacheAbbrev, Record, StatCacheData.str());
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001176}
1177
1178//===----------------------------------------------------------------------===//
Douglas Gregor14f79002009-04-10 03:52:48 +00001179// Source Manager Serialization
1180//===----------------------------------------------------------------------===//
1181
1182/// \brief Create an abbreviation for the SLocEntry that refers to a
1183/// file.
Douglas Gregorc9490c02009-04-16 22:23:12 +00001184static unsigned CreateSLocFileAbbrev(llvm::BitstreamWriter &Stream) {
Douglas Gregor14f79002009-04-10 03:52:48 +00001185 using namespace llvm;
1186 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001187 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_FILE_ENTRY));
Douglas Gregor14f79002009-04-10 03:52:48 +00001188 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1189 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1190 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic
1191 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
Douglas Gregor2d52be52010-03-21 22:49:54 +00001192 // FileEntry fields.
1193 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 12)); // Size
1194 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 32)); // Modification time
Douglas Gregora081da52011-11-16 20:05:18 +00001195 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // BufferOverridden
Argyrios Kyrtzidisd9d2b672011-08-21 23:33:04 +00001196 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumCreatedFIDs
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00001197 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 24)); // FirstDeclIndex
1198 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumDecls
Douglas Gregor14f79002009-04-10 03:52:48 +00001199 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
Douglas Gregorc9490c02009-04-16 22:23:12 +00001200 return Stream.EmitAbbrev(Abbrev);
Douglas Gregor14f79002009-04-10 03:52:48 +00001201}
1202
1203/// \brief Create an abbreviation for the SLocEntry that refers to a
1204/// buffer.
Douglas Gregorc9490c02009-04-16 22:23:12 +00001205static unsigned CreateSLocBufferAbbrev(llvm::BitstreamWriter &Stream) {
Douglas Gregor14f79002009-04-10 03:52:48 +00001206 using namespace llvm;
1207 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001208 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_ENTRY));
Douglas Gregor14f79002009-04-10 03:52:48 +00001209 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1210 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1211 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Characteristic
1212 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
1213 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Buffer name blob
Douglas Gregorc9490c02009-04-16 22:23:12 +00001214 return Stream.EmitAbbrev(Abbrev);
Douglas Gregor14f79002009-04-10 03:52:48 +00001215}
1216
1217/// \brief Create an abbreviation for the SLocEntry that refers to a
1218/// buffer's blob.
Douglas Gregorc9490c02009-04-16 22:23:12 +00001219static unsigned CreateSLocBufferBlobAbbrev(llvm::BitstreamWriter &Stream) {
Douglas Gregor14f79002009-04-10 03:52:48 +00001220 using namespace llvm;
1221 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001222 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_BLOB));
Douglas Gregor14f79002009-04-10 03:52:48 +00001223 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Blob
Douglas Gregorc9490c02009-04-16 22:23:12 +00001224 return Stream.EmitAbbrev(Abbrev);
Douglas Gregor14f79002009-04-10 03:52:48 +00001225}
1226
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001227/// \brief Create an abbreviation for the SLocEntry that refers to a macro
1228/// expansion.
1229static unsigned CreateSLocExpansionAbbrev(llvm::BitstreamWriter &Stream) {
Douglas Gregor14f79002009-04-10 03:52:48 +00001230 using namespace llvm;
1231 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001232 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_EXPANSION_ENTRY));
Douglas Gregor14f79002009-04-10 03:52:48 +00001233 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1234 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Spelling location
1235 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Start location
1236 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // End location
Douglas Gregorf60e9912009-04-15 18:05:10 +00001237 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Token length
Douglas Gregorc9490c02009-04-16 22:23:12 +00001238 return Stream.EmitAbbrev(Abbrev);
Douglas Gregor14f79002009-04-10 03:52:48 +00001239}
1240
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001241namespace {
1242 // Trait used for the on-disk hash table of header search information.
1243 class HeaderFileInfoTrait {
1244 ASTWriter &Writer;
Argyrios Kyrtzidis590ad932011-11-13 22:08:39 +00001245 const HeaderSearch &HS;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001246
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001247 // Keep track of the framework names we've used during serialization.
1248 SmallVector<char, 128> FrameworkStringData;
1249 llvm::StringMap<unsigned> FrameworkNameOffset;
1250
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001251 public:
Argyrios Kyrtzidis590ad932011-11-13 22:08:39 +00001252 HeaderFileInfoTrait(ASTWriter &Writer, const HeaderSearch &HS)
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001253 : Writer(Writer), HS(HS) { }
1254
1255 typedef const char *key_type;
1256 typedef key_type key_type_ref;
1257
1258 typedef HeaderFileInfo data_type;
1259 typedef const data_type &data_type_ref;
1260
1261 static unsigned ComputeHash(const char *path) {
1262 // The hash is based only on the filename portion of the key, so that the
1263 // reader can match based on filenames when symlinking or excess path
1264 // elements ("foo/../", "../") change the form of the name. However,
1265 // complete path is still the key.
1266 return llvm::HashString(llvm::sys::path::filename(path));
1267 }
1268
1269 std::pair<unsigned,unsigned>
Chris Lattner5f9e2722011-07-23 10:55:15 +00001270 EmitKeyDataLength(raw_ostream& Out, const char *path,
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001271 data_type_ref Data) {
1272 unsigned StrLen = strlen(path);
1273 clang::io::Emit16(Out, StrLen);
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001274 unsigned DataLen = 1 + 2 + 4 + 4;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001275 clang::io::Emit8(Out, DataLen);
1276 return std::make_pair(StrLen + 1, DataLen);
1277 }
1278
Chris Lattner5f9e2722011-07-23 10:55:15 +00001279 void EmitKey(raw_ostream& Out, const char *path, unsigned KeyLen) {
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001280 Out.write(path, KeyLen);
1281 }
1282
Chris Lattner5f9e2722011-07-23 10:55:15 +00001283 void EmitData(raw_ostream &Out, key_type_ref,
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001284 data_type_ref Data, unsigned DataLen) {
1285 using namespace clang::io;
1286 uint64_t Start = Out.tell(); (void)Start;
1287
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001288 unsigned char Flags = (Data.isImport << 5)
1289 | (Data.isPragmaOnce << 4)
1290 | (Data.DirInfo << 2)
1291 | (Data.Resolved << 1)
1292 | Data.IndexHeaderMapHeader;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001293 Emit8(Out, (uint8_t)Flags);
1294 Emit16(Out, (uint16_t) Data.NumIncludes);
1295
1296 if (!Data.ControllingMacro)
1297 Emit32(Out, (uint32_t)Data.ControllingMacroID);
1298 else
1299 Emit32(Out, (uint32_t)Writer.getIdentifierRef(Data.ControllingMacro));
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001300
1301 unsigned Offset = 0;
1302 if (!Data.Framework.empty()) {
1303 // If this header refers into a framework, save the framework name.
1304 llvm::StringMap<unsigned>::iterator Pos
1305 = FrameworkNameOffset.find(Data.Framework);
1306 if (Pos == FrameworkNameOffset.end()) {
1307 Offset = FrameworkStringData.size() + 1;
1308 FrameworkStringData.append(Data.Framework.begin(),
1309 Data.Framework.end());
1310 FrameworkStringData.push_back(0);
1311
1312 FrameworkNameOffset[Data.Framework] = Offset;
1313 } else
1314 Offset = Pos->second;
1315 }
1316 Emit32(Out, Offset);
1317
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001318 assert(Out.tell() - Start == DataLen && "Wrong data length");
1319 }
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001320
1321 const char *strings_begin() const { return FrameworkStringData.begin(); }
1322 const char *strings_end() const { return FrameworkStringData.end(); }
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001323 };
1324} // end anonymous namespace
1325
1326/// \brief Write the header search block for the list of files that
1327///
1328/// \param HS The header search structure to save.
1329///
1330/// \param Chain Whether we're creating a chained AST file.
Argyrios Kyrtzidis590ad932011-11-13 22:08:39 +00001331void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS, StringRef isysroot) {
Chris Lattner5f9e2722011-07-23 10:55:15 +00001332 SmallVector<const FileEntry *, 16> FilesByUID;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001333 HS.getFileMgr().GetUniqueIDMapping(FilesByUID);
1334
1335 if (FilesByUID.size() > HS.header_file_size())
1336 FilesByUID.resize(HS.header_file_size());
1337
1338 HeaderFileInfoTrait GeneratorTrait(*this, HS);
1339 OnDiskChainedHashTableGenerator<HeaderFileInfoTrait> Generator;
Chris Lattner5f9e2722011-07-23 10:55:15 +00001340 SmallVector<const char *, 4> SavedStrings;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001341 unsigned NumHeaderSearchEntries = 0;
1342 for (unsigned UID = 0, LastUID = FilesByUID.size(); UID != LastUID; ++UID) {
1343 const FileEntry *File = FilesByUID[UID];
1344 if (!File)
1345 continue;
1346
Argyrios Kyrtzidis590ad932011-11-13 22:08:39 +00001347 // Use HeaderSearch's getFileInfo to make sure we get the HeaderFileInfo
1348 // from the external source if it was not provided already.
1349 const HeaderFileInfo &HFI = HS.getFileInfo(File);
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001350 if (HFI.External && Chain)
1351 continue;
1352
1353 // Turn the file name into an absolute path, if it isn't already.
1354 const char *Filename = File->getName();
1355 Filename = adjustFilenameForRelocatablePCH(Filename, isysroot);
1356
1357 // If we performed any translation on the file name at all, we need to
1358 // save this string, since the generator will refer to it later.
1359 if (Filename != File->getName()) {
1360 Filename = strdup(Filename);
1361 SavedStrings.push_back(Filename);
1362 }
1363
1364 Generator.insert(Filename, HFI, GeneratorTrait);
1365 ++NumHeaderSearchEntries;
1366 }
1367
1368 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001369 SmallString<4096> TableData;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001370 uint32_t BucketOffset;
1371 {
1372 llvm::raw_svector_ostream Out(TableData);
1373 // Make sure that no bucket is at offset 0
1374 clang::io::Emit32(Out, 0);
1375 BucketOffset = Generator.Emit(Out, GeneratorTrait);
1376 }
1377
1378 // Create a blob abbreviation
1379 using namespace llvm;
1380 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
1381 Abbrev->Add(BitCodeAbbrevOp(HEADER_SEARCH_TABLE));
1382 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1383 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001384 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001385 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1386 unsigned TableAbbrev = Stream.EmitAbbrev(Abbrev);
1387
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001388 // Write the header search table
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001389 RecordData Record;
1390 Record.push_back(HEADER_SEARCH_TABLE);
1391 Record.push_back(BucketOffset);
1392 Record.push_back(NumHeaderSearchEntries);
Douglas Gregorb4dc4852011-07-28 04:50:02 +00001393 Record.push_back(TableData.size());
1394 TableData.append(GeneratorTrait.strings_begin(),GeneratorTrait.strings_end());
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001395 Stream.EmitRecordWithBlob(TableAbbrev, Record, TableData.str());
1396
1397 // Free all of the strings we had to duplicate.
1398 for (unsigned I = 0, N = SavedStrings.size(); I != N; ++I)
1399 free((void*)SavedStrings[I]);
1400}
1401
Douglas Gregor14f79002009-04-10 03:52:48 +00001402/// \brief Writes the block containing the serialized form of the
1403/// source manager.
1404///
1405/// TODO: We should probably use an on-disk hash table (stored in a
1406/// blob), indexed based on the file name, so that we only create
1407/// entries for files that we actually need. In the common case (no
1408/// errors), we probably won't have to create file entries for any of
1409/// the files in the AST.
Sebastian Redla4232eb2010-08-18 23:56:21 +00001410void ASTWriter::WriteSourceManagerBlock(SourceManager &SourceMgr,
Douglas Gregore650c8c2009-07-07 00:12:59 +00001411 const Preprocessor &PP,
Douglas Gregor832d6202011-07-22 16:35:34 +00001412 StringRef isysroot) {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001413 RecordData Record;
1414
Chris Lattnerf04ad692009-04-10 17:16:57 +00001415 // Enter the source manager block.
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001416 Stream.EnterSubblock(SOURCE_MANAGER_BLOCK_ID, 3);
Douglas Gregor14f79002009-04-10 03:52:48 +00001417
1418 // Abbreviations for the various kinds of source-location entries.
Chris Lattner828e18c2009-04-27 19:03:22 +00001419 unsigned SLocFileAbbrv = CreateSLocFileAbbrev(Stream);
1420 unsigned SLocBufferAbbrv = CreateSLocBufferAbbrev(Stream);
1421 unsigned SLocBufferBlobAbbrv = CreateSLocBufferBlobAbbrev(Stream);
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001422 unsigned SLocExpansionAbbrv = CreateSLocExpansionAbbrev(Stream);
Douglas Gregor14f79002009-04-10 03:52:48 +00001423
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001424 // Write out the source location entry table. We skip the first
1425 // entry, which is always the same dummy entry.
Chris Lattner090d9b52009-04-27 19:01:47 +00001426 std::vector<uint32_t> SLocEntryOffsets;
Argyrios Kyrtzidis4cdb0e22011-06-02 20:01:46 +00001427 // Write out the offsets of only source location file entries.
1428 // We will go through them in ASTReader::validateFileEntries().
1429 std::vector<uint32_t> SLocFileEntryOffsets;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001430 RecordData PreloadSLocs;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001431 SLocEntryOffsets.reserve(SourceMgr.local_sloc_entry_size() - 1);
1432 for (unsigned I = 1, N = SourceMgr.local_sloc_entry_size();
Sebastian Redl0fa7d0b2010-07-22 17:01:13 +00001433 I != N; ++I) {
Douglas Gregorbdfe48a2009-10-16 22:46:09 +00001434 // Get this source location entry.
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001435 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getLocalSLocEntry(I);
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00001436
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001437 // Record the offset of this source-location entry.
1438 SLocEntryOffsets.push_back(Stream.GetCurrentBitNo());
1439
1440 // Figure out which record code to use.
1441 unsigned Code;
1442 if (SLoc->isFile()) {
Douglas Gregora081da52011-11-16 20:05:18 +00001443 const SrcMgr::ContentCache *Cache = SLoc->getFile().getContentCache();
1444 if (Cache->OrigEntry) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001445 Code = SM_SLOC_FILE_ENTRY;
Argyrios Kyrtzidis4cdb0e22011-06-02 20:01:46 +00001446 SLocFileEntryOffsets.push_back(Stream.GetCurrentBitNo());
1447 } else
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001448 Code = SM_SLOC_BUFFER_ENTRY;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001449 } else
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001450 Code = SM_SLOC_EXPANSION_ENTRY;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001451 Record.clear();
1452 Record.push_back(Code);
1453
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001454 // Starting offset of this entry within this module, so skip the dummy.
1455 Record.push_back(SLoc->getOffset() - 2);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001456 if (SLoc->isFile()) {
1457 const SrcMgr::FileInfo &File = SLoc->getFile();
1458 Record.push_back(File.getIncludeLoc().getRawEncoding());
1459 Record.push_back(File.getFileCharacteristic()); // FIXME: stable encoding
1460 Record.push_back(File.hasLineDirectives());
1461
1462 const SrcMgr::ContentCache *Content = File.getContentCache();
Argyrios Kyrtzidisb1c86492011-03-05 01:03:53 +00001463 if (Content->OrigEntry) {
1464 assert(Content->OrigEntry == Content->ContentsEntry &&
Douglas Gregora081da52011-11-16 20:05:18 +00001465 "Writing to AST an overridden file is not supported");
Argyrios Kyrtzidisb1c86492011-03-05 01:03:53 +00001466
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001467 // The source location entry is a file. The blob associated
1468 // with this entry is the file name.
Mike Stump1eb44332009-09-09 15:08:12 +00001469
Douglas Gregor2d52be52010-03-21 22:49:54 +00001470 // Emit size/modification time for this file.
Argyrios Kyrtzidisb1c86492011-03-05 01:03:53 +00001471 Record.push_back(Content->OrigEntry->getSize());
1472 Record.push_back(Content->OrigEntry->getModificationTime());
Douglas Gregora081da52011-11-16 20:05:18 +00001473 Record.push_back(Content->BufferOverridden);
Argyrios Kyrtzidisd9d2b672011-08-21 23:33:04 +00001474 Record.push_back(File.NumCreatedFIDs);
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00001475
1476 FileDeclIDsTy::iterator FDI = FileDeclIDs.find(SLoc);
1477 if (FDI != FileDeclIDs.end()) {
1478 Record.push_back(FDI->second->FirstDeclIndex);
1479 Record.push_back(FDI->second->DeclIDs.size());
1480 } else {
1481 Record.push_back(0);
1482 Record.push_back(0);
1483 }
Douglas Gregora081da52011-11-16 20:05:18 +00001484
Douglas Gregore650c8c2009-07-07 00:12:59 +00001485 // Turn the file name into an absolute path, if it isn't already.
Argyrios Kyrtzidisb1c86492011-03-05 01:03:53 +00001486 const char *Filename = Content->OrigEntry->getName();
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001487 SmallString<128> FilePath(Filename);
Anders Carlsson2c10c802011-03-08 16:04:35 +00001488
1489 // Ask the file manager to fixup the relative path for us. This will
1490 // honor the working directory.
1491 SourceMgr.getFileManager().FixupRelativePath(FilePath);
1492
1493 // FIXME: This call to make_absolute shouldn't be necessary, the
1494 // call to FixupRelativePath should always return an absolute path.
Michael J. Spencerfbfd1802010-12-21 16:45:57 +00001495 llvm::sys::fs::make_absolute(FilePath);
Kovarththanan Rajaratnamaba54a92010-03-14 07:15:57 +00001496 Filename = FilePath.c_str();
Mike Stump1eb44332009-09-09 15:08:12 +00001497
Douglas Gregore650c8c2009-07-07 00:12:59 +00001498 Filename = adjustFilenameForRelocatablePCH(Filename, isysroot);
Daniel Dunbarec312a12009-08-24 09:31:37 +00001499 Stream.EmitRecordWithBlob(SLocFileAbbrv, Record, Filename);
Douglas Gregora081da52011-11-16 20:05:18 +00001500
1501 if (Content->BufferOverridden) {
1502 Record.clear();
1503 Record.push_back(SM_SLOC_BUFFER_BLOB);
1504 const llvm::MemoryBuffer *Buffer
1505 = Content->getBuffer(PP.getDiagnostics(), PP.getSourceManager());
1506 Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record,
1507 StringRef(Buffer->getBufferStart(),
1508 Buffer->getBufferSize() + 1));
1509 }
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001510 } else {
1511 // The source location entry is a buffer. The blob associated
1512 // with this entry contains the contents of the buffer.
1513
1514 // We add one to the size so that we capture the trailing NULL
1515 // that is required by llvm::MemoryBuffer::getMemBuffer (on
1516 // the reader side).
Douglas Gregor36c35ba2010-03-16 00:35:39 +00001517 const llvm::MemoryBuffer *Buffer
Chris Lattnere127a0d2010-04-20 20:35:58 +00001518 = Content->getBuffer(PP.getDiagnostics(), PP.getSourceManager());
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001519 const char *Name = Buffer->getBufferIdentifier();
Daniel Dunbarec312a12009-08-24 09:31:37 +00001520 Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record,
Chris Lattner5f9e2722011-07-23 10:55:15 +00001521 StringRef(Name, strlen(Name) + 1));
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001522 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001523 Record.push_back(SM_SLOC_BUFFER_BLOB);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001524 Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record,
Chris Lattner5f9e2722011-07-23 10:55:15 +00001525 StringRef(Buffer->getBufferStart(),
Daniel Dunbarec312a12009-08-24 09:31:37 +00001526 Buffer->getBufferSize() + 1));
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001527
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001528 if (strcmp(Name, "<built-in>") == 0) {
1529 PreloadSLocs.push_back(SLocEntryOffsets.size());
1530 }
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001531 }
1532 } else {
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001533 // The source location entry is a macro expansion.
Chandler Carruth17287622011-07-26 04:56:51 +00001534 const SrcMgr::ExpansionInfo &Expansion = SLoc->getExpansion();
Chandler Carruth78df8362011-07-26 04:41:47 +00001535 Record.push_back(Expansion.getSpellingLoc().getRawEncoding());
1536 Record.push_back(Expansion.getExpansionLocStart().getRawEncoding());
Argyrios Kyrtzidisd21683c2011-08-17 00:31:14 +00001537 Record.push_back(Expansion.isMacroArgExpansion() ? 0
1538 : Expansion.getExpansionLocEnd().getRawEncoding());
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001539
1540 // Compute the token length for this macro expansion.
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001541 unsigned NextOffset = SourceMgr.getNextLocalOffset();
Douglas Gregorbdfe48a2009-10-16 22:46:09 +00001542 if (I + 1 != N)
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001543 NextOffset = SourceMgr.getLocalSLocEntry(I + 1).getOffset();
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001544 Record.push_back(NextOffset - SLoc->getOffset() - 1);
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001545 Stream.EmitRecordWithAbbrev(SLocExpansionAbbrv, Record);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001546 }
1547 }
1548
Douglas Gregorc9490c02009-04-16 22:23:12 +00001549 Stream.ExitBlock();
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001550
1551 if (SLocEntryOffsets.empty())
1552 return;
1553
Sebastian Redl3397c552010-08-18 23:56:27 +00001554 // Write the source-location offsets table into the AST block. This
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001555 // table is used for lazily loading source-location information.
1556 using namespace llvm;
1557 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001558 Abbrev->Add(BitCodeAbbrevOp(SOURCE_LOCATION_OFFSETS));
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001559 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001560 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // total size
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001561 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
1562 unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(Abbrev);
Mike Stump1eb44332009-09-09 15:08:12 +00001563
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001564 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001565 Record.push_back(SOURCE_LOCATION_OFFSETS);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001566 Record.push_back(SLocEntryOffsets.size());
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001567 Record.push_back(SourceMgr.getNextLocalOffset() - 1); // skip dummy
Benjamin Kramer6e089c62011-04-24 17:44:50 +00001568 Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record, data(SLocEntryOffsets));
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001569
Argyrios Kyrtzidis4cdb0e22011-06-02 20:01:46 +00001570 Abbrev = new BitCodeAbbrev();
1571 Abbrev->Add(BitCodeAbbrevOp(FILE_SOURCE_LOCATION_OFFSETS));
1572 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs
1573 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
1574 unsigned SLocFileOffsetsAbbrev = Stream.EmitAbbrev(Abbrev);
1575
1576 Record.clear();
1577 Record.push_back(FILE_SOURCE_LOCATION_OFFSETS);
1578 Record.push_back(SLocFileEntryOffsets.size());
1579 Stream.EmitRecordWithBlob(SLocFileOffsetsAbbrev, Record,
1580 data(SLocFileEntryOffsets));
1581
Sebastian Redl3397c552010-08-18 23:56:27 +00001582 // Write the source location entry preloads array, telling the AST
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001583 // reader which source locations entries it should load eagerly.
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001584 Stream.EmitRecord(SOURCE_LOCATION_PRELOADS, PreloadSLocs);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001585
1586 // Write the line table. It depends on remapping working, so it must come
1587 // after the source location offsets.
1588 if (SourceMgr.hasLineTable()) {
1589 LineTableInfo &LineTable = SourceMgr.getLineTable();
1590
1591 Record.clear();
1592 // Emit the file names
1593 Record.push_back(LineTable.getNumFilenames());
1594 for (unsigned I = 0, N = LineTable.getNumFilenames(); I != N; ++I) {
1595 // Emit the file name
1596 const char *Filename = LineTable.getFilename(I);
1597 Filename = adjustFilenameForRelocatablePCH(Filename, isysroot);
1598 unsigned FilenameLen = Filename? strlen(Filename) : 0;
1599 Record.push_back(FilenameLen);
1600 if (FilenameLen)
1601 Record.insert(Record.end(), Filename, Filename + FilenameLen);
1602 }
1603
1604 // Emit the line entries
1605 for (LineTableInfo::iterator L = LineTable.begin(), LEnd = LineTable.end();
1606 L != LEnd; ++L) {
1607 // Only emit entries for local files.
1608 if (L->first < 0)
1609 continue;
1610
1611 // Emit the file ID
1612 Record.push_back(L->first);
1613
1614 // Emit the line entries
1615 Record.push_back(L->second.size());
1616 for (std::vector<LineEntry>::iterator LE = L->second.begin(),
1617 LEEnd = L->second.end();
1618 LE != LEEnd; ++LE) {
1619 Record.push_back(LE->FileOffset);
1620 Record.push_back(LE->LineNo);
1621 Record.push_back(LE->FilenameID);
1622 Record.push_back((unsigned)LE->FileKind);
1623 Record.push_back(LE->IncludeOffset);
1624 }
1625 }
1626 Stream.EmitRecord(SOURCE_MANAGER_LINE_TABLE, Record);
1627 }
Douglas Gregor14f79002009-04-10 03:52:48 +00001628}
1629
Douglas Gregor4fed3f42009-04-27 18:38:38 +00001630//===----------------------------------------------------------------------===//
1631// Preprocessor Serialization
1632//===----------------------------------------------------------------------===//
1633
Douglas Gregor9c736102011-02-10 18:20:09 +00001634static int compareMacroDefinitions(const void *XPtr, const void *YPtr) {
1635 const std::pair<const IdentifierInfo *, MacroInfo *> &X =
1636 *(const std::pair<const IdentifierInfo *, MacroInfo *>*)XPtr;
1637 const std::pair<const IdentifierInfo *, MacroInfo *> &Y =
1638 *(const std::pair<const IdentifierInfo *, MacroInfo *>*)YPtr;
1639 return X.first->getName().compare(Y.first->getName());
1640}
1641
Chris Lattner0b1fb982009-04-10 17:15:23 +00001642/// \brief Writes the block containing the serialized form of the
1643/// preprocessor.
1644///
Douglas Gregor7143aab2011-09-01 17:04:32 +00001645void ASTWriter::WritePreprocessor(const Preprocessor &PP, bool IsModule) {
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001646 PreprocessingRecord *PPRec = PP.getPreprocessingRecord();
1647 if (PPRec)
1648 WritePreprocessorDetail(*PPRec);
1649
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001650 RecordData Record;
Chris Lattnerf04ad692009-04-10 17:16:57 +00001651
Chris Lattnerc1f9d822009-04-13 01:29:17 +00001652 // If the preprocessor __COUNTER__ value has been bumped, remember it.
1653 if (PP.getCounterValue() != 0) {
1654 Record.push_back(PP.getCounterValue());
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001655 Stream.EmitRecord(PP_COUNTER_VALUE, Record);
Chris Lattnerc1f9d822009-04-13 01:29:17 +00001656 Record.clear();
Douglas Gregor2eafc1b2009-04-26 00:07:37 +00001657 }
1658
1659 // Enter the preprocessor block.
Douglas Gregorecdcb882010-10-20 22:00:55 +00001660 Stream.EnterSubblock(PREPROCESSOR_BLOCK_ID, 3);
Mike Stump1eb44332009-09-09 15:08:12 +00001661
Sebastian Redl3397c552010-08-18 23:56:27 +00001662 // If the AST file contains __DATE__ or __TIME__ emit a warning about this.
Douglas Gregor2eafc1b2009-04-26 00:07:37 +00001663 // FIXME: use diagnostics subsystem for localization etc.
1664 if (PP.SawDateOrTime())
1665 fprintf(stderr, "warning: precompiled header used __DATE__ or __TIME__.\n");
Mike Stump1eb44332009-09-09 15:08:12 +00001666
Douglas Gregorecdcb882010-10-20 22:00:55 +00001667
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001668 // Loop over all the macro definitions that are live at the end of the file,
1669 // emitting each to the PP section.
Michael J. Spencer20249a12010-10-21 03:16:25 +00001670
Douglas Gregor9c736102011-02-10 18:20:09 +00001671 // Construct the list of macro definitions that need to be serialized.
Chris Lattner5f9e2722011-07-23 10:55:15 +00001672 SmallVector<std::pair<const IdentifierInfo *, MacroInfo *>, 2>
Douglas Gregor9c736102011-02-10 18:20:09 +00001673 MacrosToEmit;
1674 llvm::SmallPtrSet<const IdentifierInfo*, 4> MacroDefinitionsSeen;
Douglas Gregor040a8042011-02-11 00:26:14 +00001675 for (Preprocessor::macro_iterator I = PP.macro_begin(Chain == 0),
1676 E = PP.macro_end(Chain == 0);
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001677 I != E; ++I) {
Douglas Gregor1d4c1132011-12-20 22:06:13 +00001678 const IdentifierInfo *Name = I->first;
Douglas Gregoraa93a872011-10-17 15:32:29 +00001679 if (!IsModule || I->second->isPublic()) {
Douglas Gregor1d4c1132011-12-20 22:06:13 +00001680 MacroDefinitionsSeen.insert(Name);
Douglas Gregor7143aab2011-09-01 17:04:32 +00001681 MacrosToEmit.push_back(std::make_pair(I->first, I->second));
1682 }
Douglas Gregor9c736102011-02-10 18:20:09 +00001683 }
1684
1685 // Sort the set of macro definitions that need to be serialized by the
1686 // name of the macro, to provide a stable ordering.
1687 llvm::array_pod_sort(MacrosToEmit.begin(), MacrosToEmit.end(),
1688 &compareMacroDefinitions);
1689
Douglas Gregor040a8042011-02-11 00:26:14 +00001690 // Resolve any identifiers that defined macros at the time they were
1691 // deserialized, adding them to the list of macros to emit (if appropriate).
1692 for (unsigned I = 0, N = DeserializedMacroNames.size(); I != N; ++I) {
1693 IdentifierInfo *Name
1694 = const_cast<IdentifierInfo *>(DeserializedMacroNames[I]);
1695 if (Name->hasMacroDefinition() && MacroDefinitionsSeen.insert(Name))
1696 MacrosToEmit.push_back(std::make_pair(Name, PP.getMacroInfo(Name)));
1697 }
1698
Douglas Gregor9c736102011-02-10 18:20:09 +00001699 for (unsigned I = 0, N = MacrosToEmit.size(); I != N; ++I) {
1700 const IdentifierInfo *Name = MacrosToEmit[I].first;
1701 MacroInfo *MI = MacrosToEmit[I].second;
Douglas Gregor040a8042011-02-11 00:26:14 +00001702 if (!MI)
1703 continue;
1704
Sebastian Redl3397c552010-08-18 23:56:27 +00001705 // Don't emit builtin macros like __LINE__ to the AST file unless they have
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001706 // been redefined by the header (in which case they are not isBuiltinMacro).
Sebastian Redl3397c552010-08-18 23:56:27 +00001707 // Also skip macros from a AST file if we're chaining.
Douglas Gregoree9b0ba2010-10-01 01:03:07 +00001708
1709 // FIXME: There is a (probably minor) optimization we could do here, if
1710 // the macro comes from the original PCH but the identifier comes from a
1711 // chained PCH, by storing the offset into the original PCH rather than
1712 // writing the macro definition a second time.
Michael J. Spencer20249a12010-10-21 03:16:25 +00001713 if (MI->isBuiltinMacro() ||
Douglas Gregoreee242f2011-10-27 09:33:13 +00001714 (Chain &&
1715 Name->isFromAST() && !Name->hasChangedSinceDeserialization() &&
1716 MI->isFromAST() && !MI->hasChangedAfterLoad()))
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001717 continue;
1718
Douglas Gregor9c736102011-02-10 18:20:09 +00001719 AddIdentifierRef(Name, Record);
1720 MacroOffsets[Name] = Stream.GetCurrentBitNo();
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001721 Record.push_back(MI->getDefinitionLoc().getRawEncoding());
1722 Record.push_back(MI->isUsed());
Douglas Gregoraa93a872011-10-17 15:32:29 +00001723 Record.push_back(MI->isPublic());
1724 AddSourceLocation(MI->getVisibilityLocation(), Record);
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001725 unsigned Code;
1726 if (MI->isObjectLike()) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001727 Code = PP_MACRO_OBJECT_LIKE;
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001728 } else {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001729 Code = PP_MACRO_FUNCTION_LIKE;
Mike Stump1eb44332009-09-09 15:08:12 +00001730
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001731 Record.push_back(MI->isC99Varargs());
1732 Record.push_back(MI->isGNUVarargs());
1733 Record.push_back(MI->getNumArgs());
1734 for (MacroInfo::arg_iterator I = MI->arg_begin(), E = MI->arg_end();
1735 I != E; ++I)
Chris Lattner7356a312009-04-11 21:15:38 +00001736 AddIdentifierRef(*I, Record);
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001737 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00001738
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001739 // If we have a detailed preprocessing record, record the macro definition
1740 // ID that corresponds to this macro.
1741 if (PPRec)
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001742 Record.push_back(MacroDefinitions[PPRec->findMacroDefinition(MI)]);
Michael J. Spencer20249a12010-10-21 03:16:25 +00001743
Douglas Gregorc9490c02009-04-16 22:23:12 +00001744 Stream.EmitRecord(Code, Record);
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001745 Record.clear();
1746
Chris Lattnerdf961c22009-04-10 18:08:30 +00001747 // Emit the tokens array.
1748 for (unsigned TokNo = 0, e = MI->getNumTokens(); TokNo != e; ++TokNo) {
1749 // Note that we know that the preprocessor does not have any annotation
1750 // tokens in it because they are created by the parser, and thus can't be
1751 // in a macro definition.
1752 const Token &Tok = MI->getReplacementToken(TokNo);
Mike Stump1eb44332009-09-09 15:08:12 +00001753
Chris Lattnerdf961c22009-04-10 18:08:30 +00001754 Record.push_back(Tok.getLocation().getRawEncoding());
1755 Record.push_back(Tok.getLength());
1756
Chris Lattnerdf961c22009-04-10 18:08:30 +00001757 // FIXME: When reading literal tokens, reconstruct the literal pointer if
1758 // it is needed.
Chris Lattner7356a312009-04-11 21:15:38 +00001759 AddIdentifierRef(Tok.getIdentifierInfo(), Record);
Chris Lattnerdf961c22009-04-10 18:08:30 +00001760 // FIXME: Should translate token kind to a stable encoding.
1761 Record.push_back(Tok.getKind());
1762 // FIXME: Should translate token flags to a stable encoding.
1763 Record.push_back(Tok.getFlags());
Mike Stump1eb44332009-09-09 15:08:12 +00001764
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001765 Stream.EmitRecord(PP_TOKEN, Record);
Chris Lattnerdf961c22009-04-10 18:08:30 +00001766 Record.clear();
1767 }
Douglas Gregor37e26842009-04-21 23:56:24 +00001768 ++NumMacros;
Chris Lattner7c5d24e2009-04-10 18:00:12 +00001769 }
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001770 Stream.ExitBlock();
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001771}
1772
1773void ASTWriter::WritePreprocessorDetail(PreprocessingRecord &PPRec) {
Argyrios Kyrtzidisb6441ef2011-09-19 20:40:42 +00001774 if (PPRec.local_begin() == PPRec.local_end())
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001775 return;
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001776
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00001777 SmallVector<PPEntityOffset, 64> PreprocessedEntityOffsets;
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001778
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001779 // Enter the preprocessor block.
1780 Stream.EnterSubblock(PREPROCESSOR_DETAIL_BLOCK_ID, 3);
Michael J. Spencer20249a12010-10-21 03:16:25 +00001781
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001782 // If the preprocessor has a preprocessing record, emit it.
1783 unsigned NumPreprocessingRecords = 0;
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001784 using namespace llvm;
1785
1786 // Set up the abbreviation for
1787 unsigned InclusionAbbrev = 0;
1788 {
1789 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
1790 Abbrev->Add(BitCodeAbbrevOp(PPD_INCLUSION_DIRECTIVE));
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001791 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // filename length
1792 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // in quotes
1793 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // kind
1794 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1795 InclusionAbbrev = Stream.EmitAbbrev(Abbrev);
1796 }
1797
Douglas Gregor272b6bc2011-08-04 18:56:47 +00001798 unsigned FirstPreprocessorEntityID
1799 = (Chain ? PPRec.getNumLoadedPreprocessedEntities() : 0)
1800 + NUM_PREDEF_PP_ENTITY_IDS;
1801 unsigned NextPreprocessorEntityID = FirstPreprocessorEntityID;
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001802 RecordData Record;
Argyrios Kyrtzidisb6441ef2011-09-19 20:40:42 +00001803 for (PreprocessingRecord::iterator E = PPRec.local_begin(),
1804 EEnd = PPRec.local_end();
Douglas Gregor7338a922011-08-04 17:06:18 +00001805 E != EEnd;
1806 (void)++E, ++NumPreprocessingRecords, ++NextPreprocessorEntityID) {
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001807 Record.clear();
Michael J. Spencer20249a12010-10-21 03:16:25 +00001808
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00001809 PreprocessedEntityOffsets.push_back(PPEntityOffset((*E)->getSourceRange(),
1810 Stream.GetCurrentBitNo()));
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001811
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001812 if (MacroDefinition *MD = dyn_cast<MacroDefinition>(*E)) {
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001813 // Record this macro definition's ID.
1814 MacroDefinitions[MD] = NextPreprocessorEntityID;
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001815
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001816 AddIdentifierRef(MD->getName(), Record);
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001817 Stream.EmitRecord(PPD_MACRO_DEFINITION, Record);
1818 continue;
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001819 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00001820
Chandler Carruth9e5bb852011-07-14 08:20:46 +00001821 if (MacroExpansion *ME = dyn_cast<MacroExpansion>(*E)) {
Argyrios Kyrtzidis8f7c5402011-09-08 17:18:41 +00001822 Record.push_back(ME->isBuiltinMacro());
1823 if (ME->isBuiltinMacro())
1824 AddIdentifierRef(ME->getName(), Record);
1825 else
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001826 Record.push_back(MacroDefinitions[ME->getDefinition()]);
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001827 Stream.EmitRecord(PPD_MACRO_EXPANSION, Record);
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001828 continue;
1829 }
1830
1831 if (InclusionDirective *ID = dyn_cast<InclusionDirective>(*E)) {
1832 Record.push_back(PPD_INCLUSION_DIRECTIVE);
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001833 Record.push_back(ID->getFileName().size());
1834 Record.push_back(ID->wasInQuotes());
1835 Record.push_back(static_cast<unsigned>(ID->getKind()));
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001836 SmallString<64> Buffer;
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001837 Buffer += ID->getFileName();
Argyrios Kyrtzidis29f98b42012-03-08 01:08:28 +00001838 // Check that the FileEntry is not null because it was not resolved and
1839 // we create a PCH even with compiler errors.
1840 if (ID->getFile())
1841 Buffer += ID->getFile()->getName();
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001842 Stream.EmitRecordWithBlob(InclusionAbbrev, Record, Buffer);
1843 continue;
1844 }
1845
1846 llvm_unreachable("Unhandled PreprocessedEntity in ASTWriter");
1847 }
Douglas Gregorc9490c02009-04-16 22:23:12 +00001848 Stream.ExitBlock();
Michael J. Spencer20249a12010-10-21 03:16:25 +00001849
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001850 // Write the offsets table for the preprocessing record.
1851 if (NumPreprocessingRecords > 0) {
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001852 assert(PreprocessedEntityOffsets.size() == NumPreprocessingRecords);
1853
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001854 // Write the offsets table for identifier IDs.
1855 using namespace llvm;
1856 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001857 Abbrev->Add(BitCodeAbbrevOp(PPD_ENTITIES_OFFSETS));
Douglas Gregor272b6bc2011-08-04 18:56:47 +00001858 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first pp entity
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001859 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001860 unsigned PPEOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
Michael J. Spencer20249a12010-10-21 03:16:25 +00001861
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001862 Record.clear();
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001863 Record.push_back(PPD_ENTITIES_OFFSETS);
Douglas Gregor272b6bc2011-08-04 18:56:47 +00001864 Record.push_back(FirstPreprocessorEntityID - NUM_PREDEF_PP_ENTITY_IDS);
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001865 Stream.EmitRecordWithBlob(PPEOffsetAbbrev, Record,
1866 data(PreprocessedEntityOffsets));
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001867 }
Chris Lattner0b1fb982009-04-10 17:15:23 +00001868}
1869
Douglas Gregore209e502011-12-06 01:10:29 +00001870unsigned ASTWriter::getSubmoduleID(Module *Mod) {
1871 llvm::DenseMap<Module *, unsigned>::iterator Known = SubmoduleIDs.find(Mod);
1872 if (Known != SubmoduleIDs.end())
1873 return Known->second;
1874
1875 return SubmoduleIDs[Mod] = NextSubmoduleID++;
1876}
1877
Douglas Gregor26ced122011-12-01 00:59:36 +00001878/// \brief Compute the number of modules within the given tree (including the
1879/// given module).
1880static unsigned getNumberOfModules(Module *Mod) {
1881 unsigned ChildModules = 0;
Douglas Gregorb7a78192012-01-04 23:32:19 +00001882 for (Module::submodule_iterator Sub = Mod->submodule_begin(),
1883 SubEnd = Mod->submodule_end();
Douglas Gregor26ced122011-12-01 00:59:36 +00001884 Sub != SubEnd; ++Sub)
Douglas Gregorb7a78192012-01-04 23:32:19 +00001885 ChildModules += getNumberOfModules(*Sub);
Douglas Gregor26ced122011-12-01 00:59:36 +00001886
1887 return ChildModules + 1;
1888}
1889
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001890void ASTWriter::WriteSubmodules(Module *WritingModule) {
Douglas Gregor4bc8738d2011-12-05 16:35:23 +00001891 // Determine the dependencies of our module and each of it's submodules.
Douglas Gregor55988682011-12-05 16:33:54 +00001892 // FIXME: This feels like it belongs somewhere else, but there are no
1893 // other consumers of this information.
1894 SourceManager &SrcMgr = PP->getSourceManager();
1895 ModuleMap &ModMap = PP->getHeaderSearchInfo().getModuleMap();
1896 for (ASTContext::import_iterator I = Context->local_import_begin(),
1897 IEnd = Context->local_import_end();
1898 I != IEnd; ++I) {
Douglas Gregor55988682011-12-05 16:33:54 +00001899 if (Module *ImportedFrom
1900 = ModMap.inferModuleFromLocation(FullSourceLoc(I->getLocation(),
1901 SrcMgr))) {
1902 ImportedFrom->Imports.push_back(I->getImportedModule());
1903 }
1904 }
1905
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001906 // Enter the submodule description block.
1907 Stream.EnterSubblock(SUBMODULE_BLOCK_ID, NUM_ALLOWED_ABBREVS_SIZE);
1908
1909 // Write the abbreviations needed for the submodules block.
1910 using namespace llvm;
1911 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
1912 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_DEFINITION));
Douglas Gregore209e502011-12-06 01:10:29 +00001913 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ID
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001914 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Parent
1915 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFramework
1916 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsExplicit
Douglas Gregora1f1fad2012-01-27 19:52:33 +00001917 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsSystem
1918 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferSubmodules...
Douglas Gregor1e123682011-12-05 22:27:44 +00001919 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExplicit...
Douglas Gregor1e123682011-12-05 22:27:44 +00001920 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExportWild...
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001921 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1922 unsigned DefinitionAbbrev = Stream.EmitAbbrev(Abbrev);
1923
1924 Abbrev = new BitCodeAbbrev();
Douglas Gregor77d029f2011-12-08 19:11:24 +00001925 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_HEADER));
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001926 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1927 unsigned UmbrellaAbbrev = Stream.EmitAbbrev(Abbrev);
1928
1929 Abbrev = new BitCodeAbbrev();
1930 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_HEADER));
1931 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1932 unsigned HeaderAbbrev = Stream.EmitAbbrev(Abbrev);
Douglas Gregor77d029f2011-12-08 19:11:24 +00001933
1934 Abbrev = new BitCodeAbbrev();
1935 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_DIR));
1936 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1937 unsigned UmbrellaDirAbbrev = Stream.EmitAbbrev(Abbrev);
1938
Douglas Gregor51f564f2011-12-31 04:05:44 +00001939 Abbrev = new BitCodeAbbrev();
1940 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_REQUIRES));
1941 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Feature
1942 unsigned RequiresAbbrev = Stream.EmitAbbrev(Abbrev);
1943
Douglas Gregor26ced122011-12-01 00:59:36 +00001944 // Write the submodule metadata block.
1945 RecordData Record;
1946 Record.push_back(getNumberOfModules(WritingModule));
1947 Record.push_back(FirstSubmoduleID - NUM_PREDEF_SUBMODULE_IDS);
1948 Stream.EmitRecord(SUBMODULE_METADATA, Record);
1949
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001950 // Write all of the submodules.
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001951 std::queue<Module *> Q;
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001952 Q.push(WritingModule);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001953 while (!Q.empty()) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001954 Module *Mod = Q.front();
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001955 Q.pop();
Douglas Gregore209e502011-12-06 01:10:29 +00001956 unsigned ID = getSubmoduleID(Mod);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001957
1958 // Emit the definition of the block.
1959 Record.clear();
1960 Record.push_back(SUBMODULE_DEFINITION);
Douglas Gregore209e502011-12-06 01:10:29 +00001961 Record.push_back(ID);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001962 if (Mod->Parent) {
1963 assert(SubmoduleIDs[Mod->Parent] && "Submodule parent not written?");
1964 Record.push_back(SubmoduleIDs[Mod->Parent]);
1965 } else {
1966 Record.push_back(0);
1967 }
1968 Record.push_back(Mod->IsFramework);
1969 Record.push_back(Mod->IsExplicit);
Douglas Gregora1f1fad2012-01-27 19:52:33 +00001970 Record.push_back(Mod->IsSystem);
Douglas Gregor1e123682011-12-05 22:27:44 +00001971 Record.push_back(Mod->InferSubmodules);
1972 Record.push_back(Mod->InferExplicitSubmodules);
1973 Record.push_back(Mod->InferExportWildcard);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001974 Stream.EmitRecordWithBlob(DefinitionAbbrev, Record, Mod->Name);
1975
Douglas Gregor51f564f2011-12-31 04:05:44 +00001976 // Emit the requirements.
1977 for (unsigned I = 0, N = Mod->Requires.size(); I != N; ++I) {
1978 Record.clear();
1979 Record.push_back(SUBMODULE_REQUIRES);
1980 Stream.EmitRecordWithBlob(RequiresAbbrev, Record,
1981 Mod->Requires[I].data(),
1982 Mod->Requires[I].size());
1983 }
1984
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001985 // Emit the umbrella header, if there is one.
Douglas Gregor10694ce2011-12-08 17:39:04 +00001986 if (const FileEntry *UmbrellaHeader = Mod->getUmbrellaHeader()) {
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001987 Record.clear();
Douglas Gregor77d029f2011-12-08 19:11:24 +00001988 Record.push_back(SUBMODULE_UMBRELLA_HEADER);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001989 Stream.EmitRecordWithBlob(UmbrellaAbbrev, Record,
Douglas Gregor10694ce2011-12-08 17:39:04 +00001990 UmbrellaHeader->getName());
Douglas Gregor77d029f2011-12-08 19:11:24 +00001991 } else if (const DirectoryEntry *UmbrellaDir = Mod->getUmbrellaDir()) {
1992 Record.clear();
1993 Record.push_back(SUBMODULE_UMBRELLA_DIR);
1994 Stream.EmitRecordWithBlob(UmbrellaDirAbbrev, Record,
1995 UmbrellaDir->getName());
Douglas Gregor392ed2b2011-11-30 17:33:56 +00001996 }
1997
1998 // Emit the headers.
1999 for (unsigned I = 0, N = Mod->Headers.size(); I != N; ++I) {
2000 Record.clear();
2001 Record.push_back(SUBMODULE_HEADER);
2002 Stream.EmitRecordWithBlob(HeaderAbbrev, Record,
2003 Mod->Headers[I]->getName());
2004 }
Douglas Gregor55988682011-12-05 16:33:54 +00002005
2006 // Emit the imports.
2007 if (!Mod->Imports.empty()) {
2008 Record.clear();
2009 for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) {
Douglas Gregorbab9f4a2011-12-12 23:17:57 +00002010 unsigned ImportedID = getSubmoduleID(Mod->Imports[I]);
Douglas Gregor55988682011-12-05 16:33:54 +00002011 assert(ImportedID && "Unknown submodule!");
2012 Record.push_back(ImportedID);
2013 }
2014 Stream.EmitRecord(SUBMODULE_IMPORTS, Record);
2015 }
2016
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002017 // Emit the exports.
2018 if (!Mod->Exports.empty()) {
2019 Record.clear();
2020 for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) {
Douglas Gregorbab9f4a2011-12-12 23:17:57 +00002021 if (Module *Exported = Mod->Exports[I].getPointer()) {
2022 unsigned ExportedID = SubmoduleIDs[Exported];
2023 assert(ExportedID > 0 && "Unknown submodule ID?");
2024 Record.push_back(ExportedID);
2025 } else {
2026 Record.push_back(0);
2027 }
2028
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002029 Record.push_back(Mod->Exports[I].getInt());
2030 }
2031 Stream.EmitRecord(SUBMODULE_EXPORTS, Record);
2032 }
2033
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002034 // Queue up the submodules of this module.
Douglas Gregorb7a78192012-01-04 23:32:19 +00002035 for (Module::submodule_iterator Sub = Mod->submodule_begin(),
2036 SubEnd = Mod->submodule_end();
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002037 Sub != SubEnd; ++Sub)
Douglas Gregorb7a78192012-01-04 23:32:19 +00002038 Q.push(*Sub);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002039 }
2040
2041 Stream.ExitBlock();
Douglas Gregore209e502011-12-06 01:10:29 +00002042
2043 assert((NextSubmoduleID - FirstSubmoduleID
2044 == getNumberOfModules(WritingModule)) && "Wrong # of submodules");
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002045}
2046
Douglas Gregor185dbd72011-12-01 02:07:58 +00002047serialization::SubmoduleID
2048ASTWriter::inferSubmoduleIDFromLocation(SourceLocation Loc) {
Douglas Gregore209e502011-12-06 01:10:29 +00002049 if (Loc.isInvalid() || !WritingModule)
Douglas Gregor185dbd72011-12-01 02:07:58 +00002050 return 0; // No submodule
Douglas Gregor55988682011-12-05 16:33:54 +00002051
2052 // Find the module that owns this location.
Douglas Gregor185dbd72011-12-01 02:07:58 +00002053 ModuleMap &ModMap = PP->getHeaderSearchInfo().getModuleMap();
Douglas Gregor55988682011-12-05 16:33:54 +00002054 Module *OwningMod
2055 = ModMap.inferModuleFromLocation(FullSourceLoc(Loc,PP->getSourceManager()));
Douglas Gregor185dbd72011-12-01 02:07:58 +00002056 if (!OwningMod)
2057 return 0;
2058
Douglas Gregore209e502011-12-06 01:10:29 +00002059 // Check whether this submodule is part of our own module.
2060 if (WritingModule != OwningMod && !OwningMod->isSubModuleOf(WritingModule))
Douglas Gregor185dbd72011-12-01 02:07:58 +00002061 return 0;
2062
Douglas Gregore209e502011-12-06 01:10:29 +00002063 return getSubmoduleID(OwningMod);
Douglas Gregor185dbd72011-12-01 02:07:58 +00002064}
2065
David Blaikied6471f72011-09-25 23:23:43 +00002066void ASTWriter::WritePragmaDiagnosticMappings(const DiagnosticsEngine &Diag) {
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002067 RecordData Record;
David Blaikied6471f72011-09-25 23:23:43 +00002068 for (DiagnosticsEngine::DiagStatePointsTy::const_iterator
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002069 I = Diag.DiagStatePoints.begin(), E = Diag.DiagStatePoints.end();
2070 I != E; ++I) {
David Blaikied6471f72011-09-25 23:23:43 +00002071 const DiagnosticsEngine::DiagStatePoint &point = *I;
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002072 if (point.Loc.isInvalid())
2073 continue;
2074
2075 Record.push_back(point.Loc.getRawEncoding());
Daniel Dunbarba494c62011-09-29 01:42:25 +00002076 for (DiagnosticsEngine::DiagState::const_iterator
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002077 I = point.State->begin(), E = point.State->end(); I != E; ++I) {
Daniel Dunbarb1c99c62011-09-29 01:30:00 +00002078 if (I->second.isPragma()) {
2079 Record.push_back(I->first);
2080 Record.push_back(I->second.getMapping());
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002081 }
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002082 }
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002083 Record.push_back(-1); // mark the end of the diag/map pairs for this
2084 // location.
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002085 }
2086
Argyrios Kyrtzidis60f76842010-11-05 22:20:49 +00002087 if (!Record.empty())
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002088 Stream.EmitRecord(DIAG_PRAGMA_MAPPINGS, Record);
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002089}
2090
Anders Carlssonc8505782011-03-06 18:41:18 +00002091void ASTWriter::WriteCXXBaseSpecifiersOffsets() {
2092 if (CXXBaseSpecifiersOffsets.empty())
2093 return;
2094
2095 RecordData Record;
2096
2097 // Create a blob abbreviation for the C++ base specifiers offsets.
2098 using namespace llvm;
2099
2100 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
2101 Abbrev->Add(BitCodeAbbrevOp(CXX_BASE_SPECIFIER_OFFSETS));
2102 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // size
2103 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2104 unsigned BaseSpecifierOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
2105
Douglas Gregore92b8a12011-08-04 00:01:48 +00002106 // Write the base specifier offsets table.
Anders Carlssonc8505782011-03-06 18:41:18 +00002107 Record.clear();
2108 Record.push_back(CXX_BASE_SPECIFIER_OFFSETS);
2109 Record.push_back(CXXBaseSpecifiersOffsets.size());
2110 Stream.EmitRecordWithBlob(BaseSpecifierOffsetAbbrev, Record,
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002111 data(CXXBaseSpecifiersOffsets));
Anders Carlssonc8505782011-03-06 18:41:18 +00002112}
2113
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002114//===----------------------------------------------------------------------===//
2115// Type Serialization
2116//===----------------------------------------------------------------------===//
Chris Lattner0b1fb982009-04-10 17:15:23 +00002117
Sebastian Redl3397c552010-08-18 23:56:27 +00002118/// \brief Write the representation of a type to the AST stream.
Sebastian Redla4232eb2010-08-18 23:56:21 +00002119void ASTWriter::WriteType(QualType T) {
Argyrios Kyrtzidis01b81c42010-08-20 16:04:04 +00002120 TypeIdx &Idx = TypeIdxs[T];
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00002121 if (Idx.getIndex() == 0) // we haven't seen this type before.
2122 Idx = TypeIdx(NextTypeID++);
Mike Stump1eb44332009-09-09 15:08:12 +00002123
Douglas Gregor97475832010-10-05 18:37:06 +00002124 assert(Idx.getIndex() >= FirstTypeID && "Re-writing a type from a prior AST");
Douglas Gregor55f48de2010-10-04 18:21:45 +00002125
Douglas Gregor2cf26342009-04-09 22:27:44 +00002126 // Record the offset for this type.
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00002127 unsigned Index = Idx.getIndex() - FirstTypeID;
Sebastian Redl681d7232010-07-27 00:17:23 +00002128 if (TypeOffsets.size() == Index)
Douglas Gregorc9490c02009-04-16 22:23:12 +00002129 TypeOffsets.push_back(Stream.GetCurrentBitNo());
Sebastian Redl681d7232010-07-27 00:17:23 +00002130 else if (TypeOffsets.size() < Index) {
2131 TypeOffsets.resize(Index + 1);
2132 TypeOffsets[Index] = Stream.GetCurrentBitNo();
Douglas Gregor2cf26342009-04-09 22:27:44 +00002133 }
2134
2135 RecordData Record;
Mike Stump1eb44332009-09-09 15:08:12 +00002136
Douglas Gregor2cf26342009-04-09 22:27:44 +00002137 // Emit the type's representation.
Sebastian Redl3397c552010-08-18 23:56:27 +00002138 ASTTypeWriter W(*this, Record);
John McCall0953e762009-09-24 19:53:00 +00002139
Douglas Gregora4923eb2009-11-16 21:35:15 +00002140 if (T.hasLocalNonFastQualifiers()) {
2141 Qualifiers Qs = T.getLocalQualifiers();
2142 AddTypeRef(T.getLocalUnqualifiedType(), Record);
John McCall0953e762009-09-24 19:53:00 +00002143 Record.push_back(Qs.getAsOpaqueValue());
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002144 W.Code = TYPE_EXT_QUAL;
John McCall0953e762009-09-24 19:53:00 +00002145 } else {
2146 switch (T->getTypeClass()) {
2147 // For all of the concrete, non-dependent types, call the
2148 // appropriate visitor function.
Douglas Gregor2cf26342009-04-09 22:27:44 +00002149#define TYPE(Class, Base) \
Mike Stumpb7166332010-01-20 02:03:14 +00002150 case Type::Class: W.Visit##Class##Type(cast<Class##Type>(T)); break;
Douglas Gregor2cf26342009-04-09 22:27:44 +00002151#define ABSTRACT_TYPE(Class, Base)
Douglas Gregor2cf26342009-04-09 22:27:44 +00002152#include "clang/AST/TypeNodes.def"
John McCall0953e762009-09-24 19:53:00 +00002153 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00002154 }
2155
2156 // Emit the serialized record.
Douglas Gregorc9490c02009-04-16 22:23:12 +00002157 Stream.EmitRecord(W.Code, Record);
Douglas Gregor0b748912009-04-14 21:18:50 +00002158
2159 // Flush any expressions that were written as part of this type.
Douglas Gregorc9490c02009-04-16 22:23:12 +00002160 FlushStmts();
Douglas Gregor2cf26342009-04-09 22:27:44 +00002161}
2162
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002163//===----------------------------------------------------------------------===//
2164// Declaration Serialization
2165//===----------------------------------------------------------------------===//
2166
Douglas Gregor2cf26342009-04-09 22:27:44 +00002167/// \brief Write the block containing all of the declaration IDs
2168/// lexically declared within the given DeclContext.
2169///
2170/// \returns the offset of the DECL_CONTEXT_LEXICAL block within the
2171/// bistream, or 0 if no block was written.
Sebastian Redla4232eb2010-08-18 23:56:21 +00002172uint64_t ASTWriter::WriteDeclContextLexicalBlock(ASTContext &Context,
Douglas Gregor2cf26342009-04-09 22:27:44 +00002173 DeclContext *DC) {
Argyrios Kyrtzidis17945a02009-06-30 02:36:12 +00002174 if (DC->decls_empty())
Douglas Gregor2cf26342009-04-09 22:27:44 +00002175 return 0;
2176
Douglas Gregorc9490c02009-04-16 22:23:12 +00002177 uint64_t Offset = Stream.GetCurrentBitNo();
Douglas Gregor2cf26342009-04-09 22:27:44 +00002178 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002179 Record.push_back(DECL_CONTEXT_LEXICAL);
Chris Lattner5f9e2722011-07-23 10:55:15 +00002180 SmallVector<KindDeclIDPair, 64> Decls;
Argyrios Kyrtzidis17945a02009-06-30 02:36:12 +00002181 for (DeclContext::decl_iterator D = DC->decls_begin(), DEnd = DC->decls_end();
2182 D != DEnd; ++D)
Argyrios Kyrtzidiseb5e9982010-10-14 20:14:34 +00002183 Decls.push_back(std::make_pair((*D)->getKind(), GetDeclRef(*D)));
Douglas Gregor2cf26342009-04-09 22:27:44 +00002184
Douglas Gregor25123082009-04-22 22:34:57 +00002185 ++NumLexicalDeclContexts;
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002186 Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record, data(Decls));
Douglas Gregor2cf26342009-04-09 22:27:44 +00002187 return Offset;
2188}
2189
Sebastian Redla4232eb2010-08-18 23:56:21 +00002190void ASTWriter::WriteTypeDeclOffsets() {
Sebastian Redl1476ed42010-07-16 16:36:56 +00002191 using namespace llvm;
2192 RecordData Record;
2193
2194 // Write the type offsets array
2195 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002196 Abbrev->Add(BitCodeAbbrevOp(TYPE_OFFSET));
Sebastian Redl1476ed42010-07-16 16:36:56 +00002197 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of types
Douglas Gregora119da02011-08-02 16:26:37 +00002198 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base type index
Sebastian Redl1476ed42010-07-16 16:36:56 +00002199 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block
2200 unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
2201 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002202 Record.push_back(TYPE_OFFSET);
Sebastian Redl1476ed42010-07-16 16:36:56 +00002203 Record.push_back(TypeOffsets.size());
Douglas Gregora119da02011-08-02 16:26:37 +00002204 Record.push_back(FirstTypeID - NUM_PREDEF_TYPE_IDS);
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002205 Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, data(TypeOffsets));
Sebastian Redl1476ed42010-07-16 16:36:56 +00002206
2207 // Write the declaration offsets array
2208 Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002209 Abbrev->Add(BitCodeAbbrevOp(DECL_OFFSET));
Sebastian Redl1476ed42010-07-16 16:36:56 +00002210 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of declarations
Douglas Gregor496c7092011-08-03 15:48:04 +00002211 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base decl ID
Sebastian Redl1476ed42010-07-16 16:36:56 +00002212 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // declarations block
2213 unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
2214 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002215 Record.push_back(DECL_OFFSET);
Sebastian Redl1476ed42010-07-16 16:36:56 +00002216 Record.push_back(DeclOffsets.size());
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00002217 Record.push_back(FirstDeclID - NUM_PREDEF_DECL_IDS);
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002218 Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, data(DeclOffsets));
Sebastian Redl1476ed42010-07-16 16:36:56 +00002219}
2220
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00002221void ASTWriter::WriteFileDeclIDsMap() {
2222 using namespace llvm;
2223 RecordData Record;
2224
2225 // Join the vectors of DeclIDs from all files.
2226 SmallVector<DeclID, 256> FileSortedIDs;
2227 for (FileDeclIDsTy::iterator
2228 FI = FileDeclIDs.begin(), FE = FileDeclIDs.end(); FI != FE; ++FI) {
2229 DeclIDInFileInfo &Info = *FI->second;
2230 Info.FirstDeclIndex = FileSortedIDs.size();
2231 for (LocDeclIDsTy::iterator
2232 DI = Info.DeclIDs.begin(), DE = Info.DeclIDs.end(); DI != DE; ++DI)
2233 FileSortedIDs.push_back(DI->second);
2234 }
2235
2236 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
2237 Abbrev->Add(BitCodeAbbrevOp(FILE_SORTED_DECLS));
2238 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2239 unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
2240 Record.push_back(FILE_SORTED_DECLS);
2241 Stream.EmitRecordWithBlob(AbbrevCode, Record, data(FileSortedIDs));
2242}
2243
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002244//===----------------------------------------------------------------------===//
2245// Global Method Pool and Selector Serialization
2246//===----------------------------------------------------------------------===//
2247
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002248namespace {
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002249// Trait used for the on-disk hash table used in the method pool.
Sebastian Redl3397c552010-08-18 23:56:27 +00002250class ASTMethodPoolTrait {
Sebastian Redla4232eb2010-08-18 23:56:21 +00002251 ASTWriter &Writer;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002252
2253public:
2254 typedef Selector key_type;
2255 typedef key_type key_type_ref;
Mike Stump1eb44332009-09-09 15:08:12 +00002256
Sebastian Redl5d050072010-08-04 17:20:04 +00002257 struct data_type {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002258 SelectorID ID;
Sebastian Redl5d050072010-08-04 17:20:04 +00002259 ObjCMethodList Instance, Factory;
2260 };
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002261 typedef const data_type& data_type_ref;
2262
Sebastian Redl3397c552010-08-18 23:56:27 +00002263 explicit ASTMethodPoolTrait(ASTWriter &Writer) : Writer(Writer) { }
Mike Stump1eb44332009-09-09 15:08:12 +00002264
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002265 static unsigned ComputeHash(Selector Sel) {
Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +00002266 return serialization::ComputeHash(Sel);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002267 }
Mike Stump1eb44332009-09-09 15:08:12 +00002268
2269 std::pair<unsigned,unsigned>
Chris Lattner5f9e2722011-07-23 10:55:15 +00002270 EmitKeyDataLength(raw_ostream& Out, Selector Sel,
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002271 data_type_ref Methods) {
2272 unsigned KeyLen = 2 + (Sel.getNumArgs()? Sel.getNumArgs() * 4 : 4);
2273 clang::io::Emit16(Out, KeyLen);
Sebastian Redl5d050072010-08-04 17:20:04 +00002274 unsigned DataLen = 4 + 2 + 2; // 2 bytes for each of the method counts
2275 for (const ObjCMethodList *Method = &Methods.Instance; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002276 Method = Method->Next)
2277 if (Method->Method)
2278 DataLen += 4;
Sebastian Redl5d050072010-08-04 17:20:04 +00002279 for (const ObjCMethodList *Method = &Methods.Factory; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002280 Method = Method->Next)
2281 if (Method->Method)
2282 DataLen += 4;
2283 clang::io::Emit16(Out, DataLen);
2284 return std::make_pair(KeyLen, DataLen);
2285 }
Mike Stump1eb44332009-09-09 15:08:12 +00002286
Chris Lattner5f9e2722011-07-23 10:55:15 +00002287 void EmitKey(raw_ostream& Out, Selector Sel, unsigned) {
Mike Stump1eb44332009-09-09 15:08:12 +00002288 uint64_t Start = Out.tell();
Douglas Gregor83941df2009-04-25 17:48:32 +00002289 assert((Start >> 32) == 0 && "Selector key offset too large");
2290 Writer.SetSelectorOffset(Sel, Start);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002291 unsigned N = Sel.getNumArgs();
2292 clang::io::Emit16(Out, N);
2293 if (N == 0)
2294 N = 1;
2295 for (unsigned I = 0; I != N; ++I)
Mike Stump1eb44332009-09-09 15:08:12 +00002296 clang::io::Emit32(Out,
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002297 Writer.getIdentifierRef(Sel.getIdentifierInfoForSlot(I)));
2298 }
Mike Stump1eb44332009-09-09 15:08:12 +00002299
Chris Lattner5f9e2722011-07-23 10:55:15 +00002300 void EmitData(raw_ostream& Out, key_type_ref,
Douglas Gregora67e58c2009-04-24 21:49:02 +00002301 data_type_ref Methods, unsigned DataLen) {
2302 uint64_t Start = Out.tell(); (void)Start;
Sebastian Redl5d050072010-08-04 17:20:04 +00002303 clang::io::Emit32(Out, Methods.ID);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002304 unsigned NumInstanceMethods = 0;
Sebastian Redl5d050072010-08-04 17:20:04 +00002305 for (const ObjCMethodList *Method = &Methods.Instance; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002306 Method = Method->Next)
2307 if (Method->Method)
2308 ++NumInstanceMethods;
2309
2310 unsigned NumFactoryMethods = 0;
Sebastian Redl5d050072010-08-04 17:20:04 +00002311 for (const ObjCMethodList *Method = &Methods.Factory; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002312 Method = Method->Next)
2313 if (Method->Method)
2314 ++NumFactoryMethods;
2315
2316 clang::io::Emit16(Out, NumInstanceMethods);
2317 clang::io::Emit16(Out, NumFactoryMethods);
Sebastian Redl5d050072010-08-04 17:20:04 +00002318 for (const ObjCMethodList *Method = &Methods.Instance; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002319 Method = Method->Next)
2320 if (Method->Method)
2321 clang::io::Emit32(Out, Writer.getDeclID(Method->Method));
Sebastian Redl5d050072010-08-04 17:20:04 +00002322 for (const ObjCMethodList *Method = &Methods.Factory; Method;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002323 Method = Method->Next)
2324 if (Method->Method)
2325 clang::io::Emit32(Out, Writer.getDeclID(Method->Method));
Douglas Gregora67e58c2009-04-24 21:49:02 +00002326
2327 assert(Out.tell() - Start == DataLen && "Data length is wrong");
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002328 }
2329};
2330} // end anonymous namespace
2331
Sebastian Redl059612d2010-08-03 21:58:15 +00002332/// \brief Write ObjC data: selectors and the method pool.
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002333///
2334/// The method pool contains both instance and factory methods, stored
Sebastian Redl059612d2010-08-03 21:58:15 +00002335/// in an on-disk hash table indexed by the selector. The hash table also
2336/// contains an empty entry for every other selector known to Sema.
Sebastian Redla4232eb2010-08-18 23:56:21 +00002337void ASTWriter::WriteSelectors(Sema &SemaRef) {
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002338 using namespace llvm;
2339
Sebastian Redl059612d2010-08-03 21:58:15 +00002340 // Do we have to do anything at all?
Sebastian Redl5d050072010-08-04 17:20:04 +00002341 if (SemaRef.MethodPool.empty() && SelectorIDs.empty())
Sebastian Redl059612d2010-08-03 21:58:15 +00002342 return;
Sebastian Redle58aa892010-08-04 18:21:41 +00002343 unsigned NumTableEntries = 0;
Sebastian Redl059612d2010-08-03 21:58:15 +00002344 // Create and write out the blob that contains selectors and the method pool.
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002345 {
Sebastian Redl3397c552010-08-18 23:56:27 +00002346 OnDiskChainedHashTableGenerator<ASTMethodPoolTrait> Generator;
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002347 ASTMethodPoolTrait Trait(*this);
Mike Stump1eb44332009-09-09 15:08:12 +00002348
Sebastian Redl059612d2010-08-03 21:58:15 +00002349 // Create the on-disk hash table representation. We walk through every
2350 // selector we've seen and look it up in the method pool.
Sebastian Redle58aa892010-08-04 18:21:41 +00002351 SelectorOffsets.resize(NextSelectorID - FirstSelectorID);
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002352 for (llvm::DenseMap<Selector, SelectorID>::iterator
Sebastian Redl5d050072010-08-04 17:20:04 +00002353 I = SelectorIDs.begin(), E = SelectorIDs.end();
2354 I != E; ++I) {
2355 Selector S = I->first;
Sebastian Redl059612d2010-08-03 21:58:15 +00002356 Sema::GlobalMethodPool::iterator F = SemaRef.MethodPool.find(S);
Sebastian Redl3397c552010-08-18 23:56:27 +00002357 ASTMethodPoolTrait::data_type Data = {
Sebastian Redl5d050072010-08-04 17:20:04 +00002358 I->second,
2359 ObjCMethodList(),
2360 ObjCMethodList()
2361 };
2362 if (F != SemaRef.MethodPool.end()) {
2363 Data.Instance = F->second.first;
2364 Data.Factory = F->second.second;
2365 }
Sebastian Redl3397c552010-08-18 23:56:27 +00002366 // Only write this selector if it's not in an existing AST or something
Sebastian Redle58aa892010-08-04 18:21:41 +00002367 // changed.
2368 if (Chain && I->second < FirstSelectorID) {
2369 // Selector already exists. Did it change?
2370 bool changed = false;
2371 for (ObjCMethodList *M = &Data.Instance; !changed && M && M->Method;
2372 M = M->Next) {
Douglas Gregor919814d2011-09-09 23:01:35 +00002373 if (!M->Method->isFromASTFile())
Sebastian Redle58aa892010-08-04 18:21:41 +00002374 changed = true;
2375 }
2376 for (ObjCMethodList *M = &Data.Factory; !changed && M && M->Method;
2377 M = M->Next) {
Douglas Gregor919814d2011-09-09 23:01:35 +00002378 if (!M->Method->isFromASTFile())
Sebastian Redle58aa892010-08-04 18:21:41 +00002379 changed = true;
2380 }
2381 if (!changed)
2382 continue;
Sebastian Redlfa78dec2010-08-04 21:22:45 +00002383 } else if (Data.Instance.Method || Data.Factory.Method) {
2384 // A new method pool entry.
2385 ++NumTableEntries;
Sebastian Redle58aa892010-08-04 18:21:41 +00002386 }
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002387 Generator.insert(S, Data, Trait);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002388 }
2389
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002390 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00002391 SmallString<4096> MethodPool;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002392 uint32_t BucketOffset;
2393 {
Sebastian Redl3397c552010-08-18 23:56:27 +00002394 ASTMethodPoolTrait Trait(*this);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002395 llvm::raw_svector_ostream Out(MethodPool);
2396 // Make sure that no bucket is at offset 0
Douglas Gregora67e58c2009-04-24 21:49:02 +00002397 clang::io::Emit32(Out, 0);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002398 BucketOffset = Generator.Emit(Out, Trait);
2399 }
2400
2401 // Create a blob abbreviation
2402 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002403 Abbrev->Add(BitCodeAbbrevOp(METHOD_POOL));
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002404 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
Douglas Gregor83941df2009-04-25 17:48:32 +00002405 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002406 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2407 unsigned MethodPoolAbbrev = Stream.EmitAbbrev(Abbrev);
2408
Douglas Gregor83941df2009-04-25 17:48:32 +00002409 // Write the method pool
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002410 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002411 Record.push_back(METHOD_POOL);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002412 Record.push_back(BucketOffset);
Sebastian Redle58aa892010-08-04 18:21:41 +00002413 Record.push_back(NumTableEntries);
Daniel Dunbarec312a12009-08-24 09:31:37 +00002414 Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool.str());
Douglas Gregor83941df2009-04-25 17:48:32 +00002415
2416 // Create a blob abbreviation for the selector table offsets.
2417 Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002418 Abbrev->Add(BitCodeAbbrevOp(SELECTOR_OFFSETS));
Douglas Gregor7c789c12010-10-29 22:39:52 +00002419 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // size
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002420 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
Douglas Gregor83941df2009-04-25 17:48:32 +00002421 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2422 unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
2423
2424 // Write the selector offsets table.
2425 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002426 Record.push_back(SELECTOR_OFFSETS);
Douglas Gregor83941df2009-04-25 17:48:32 +00002427 Record.push_back(SelectorOffsets.size());
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002428 Record.push_back(FirstSelectorID - NUM_PREDEF_SELECTOR_IDS);
Douglas Gregor83941df2009-04-25 17:48:32 +00002429 Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002430 data(SelectorOffsets));
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002431 }
2432}
2433
Sebastian Redl3397c552010-08-18 23:56:27 +00002434/// \brief Write the selectors referenced in @selector expression into AST file.
Sebastian Redla4232eb2010-08-18 23:56:21 +00002435void ASTWriter::WriteReferencedSelectorsPool(Sema &SemaRef) {
Fariborz Jahanian32019832010-07-23 19:11:11 +00002436 using namespace llvm;
2437 if (SemaRef.ReferencedSelectors.empty())
2438 return;
Sebastian Redl725cd962010-08-04 20:40:17 +00002439
Fariborz Jahanian32019832010-07-23 19:11:11 +00002440 RecordData Record;
Sebastian Redl725cd962010-08-04 20:40:17 +00002441
Sebastian Redl3397c552010-08-18 23:56:27 +00002442 // Note: this writes out all references even for a dependent AST. But it is
Sebastian Redla68340f2010-08-04 22:21:29 +00002443 // very tricky to fix, and given that @selector shouldn't really appear in
2444 // headers, probably not worth it. It's not a correctness issue.
Fariborz Jahanian32019832010-07-23 19:11:11 +00002445 for (DenseMap<Selector, SourceLocation>::iterator S =
2446 SemaRef.ReferencedSelectors.begin(),
2447 E = SemaRef.ReferencedSelectors.end(); S != E; ++S) {
2448 Selector Sel = (*S).first;
2449 SourceLocation Loc = (*S).second;
2450 AddSelectorRef(Sel, Record);
2451 AddSourceLocation(Loc, Record);
2452 }
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002453 Stream.EmitRecord(REFERENCED_SELECTOR_POOL, Record);
Fariborz Jahanian32019832010-07-23 19:11:11 +00002454}
2455
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002456//===----------------------------------------------------------------------===//
2457// Identifier Table Serialization
2458//===----------------------------------------------------------------------===//
2459
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002460namespace {
Sebastian Redl3397c552010-08-18 23:56:27 +00002461class ASTIdentifierTableTrait {
Sebastian Redla4232eb2010-08-18 23:56:21 +00002462 ASTWriter &Writer;
Douglas Gregor37e26842009-04-21 23:56:24 +00002463 Preprocessor &PP;
Douglas Gregoreee242f2011-10-27 09:33:13 +00002464 IdentifierResolver &IdResolver;
Douglas Gregor7143aab2011-09-01 17:04:32 +00002465 bool IsModule;
2466
Douglas Gregora92193e2009-04-28 21:18:29 +00002467 /// \brief Determines whether this is an "interesting" identifier
2468 /// that needs a full IdentifierInfo structure written into the hash
2469 /// table.
Douglas Gregor7143aab2011-09-01 17:04:32 +00002470 bool isInterestingIdentifier(IdentifierInfo *II, MacroInfo *&Macro) {
Douglas Gregor7143aab2011-09-01 17:04:32 +00002471 if (II->isPoisoned() ||
2472 II->isExtensionToken() ||
2473 II->getObjCOrBuiltinID() ||
Douglas Gregoreee242f2011-10-27 09:33:13 +00002474 II->hasRevertedTokenIDToIdentifier() ||
Douglas Gregor7143aab2011-09-01 17:04:32 +00002475 II->getFETokenInfo<void>())
2476 return true;
2477
Douglas Gregorce835df2011-09-14 22:14:14 +00002478 return hasMacroDefinition(II, Macro);
2479 }
2480
2481 bool hasMacroDefinition(IdentifierInfo *II, MacroInfo *&Macro) {
Douglas Gregor7143aab2011-09-01 17:04:32 +00002482 if (!II->hasMacroDefinition())
2483 return false;
2484
Douglas Gregorce835df2011-09-14 22:14:14 +00002485 if (Macro || (Macro = PP.getMacroInfo(II)))
Douglas Gregoraa93a872011-10-17 15:32:29 +00002486 return !Macro->isBuiltinMacro() && (!IsModule || Macro->isPublic());
Douglas Gregor7143aab2011-09-01 17:04:32 +00002487
Douglas Gregorce835df2011-09-14 22:14:14 +00002488 return false;
Douglas Gregora92193e2009-04-28 21:18:29 +00002489 }
2490
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002491public:
Douglas Gregor7143aab2011-09-01 17:04:32 +00002492 typedef IdentifierInfo* key_type;
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002493 typedef key_type key_type_ref;
Mike Stump1eb44332009-09-09 15:08:12 +00002494
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002495 typedef IdentID data_type;
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002496 typedef data_type data_type_ref;
Mike Stump1eb44332009-09-09 15:08:12 +00002497
Douglas Gregoreee242f2011-10-27 09:33:13 +00002498 ASTIdentifierTableTrait(ASTWriter &Writer, Preprocessor &PP,
2499 IdentifierResolver &IdResolver, bool IsModule)
2500 : Writer(Writer), PP(PP), IdResolver(IdResolver), IsModule(IsModule) { }
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002501
2502 static unsigned ComputeHash(const IdentifierInfo* II) {
Daniel Dunbar2596e422009-10-17 23:52:28 +00002503 return llvm::HashString(II->getName());
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002504 }
Mike Stump1eb44332009-09-09 15:08:12 +00002505
2506 std::pair<unsigned,unsigned>
Douglas Gregoreee242f2011-10-27 09:33:13 +00002507 EmitKeyDataLength(raw_ostream& Out, IdentifierInfo* II, IdentID ID) {
Daniel Dunbare013d682009-10-18 20:26:12 +00002508 unsigned KeyLen = II->getLength() + 1;
Douglas Gregora92193e2009-04-28 21:18:29 +00002509 unsigned DataLen = 4; // 4 bytes for the persistent ID << 1
Douglas Gregorce835df2011-09-14 22:14:14 +00002510 MacroInfo *Macro = 0;
Douglas Gregor7143aab2011-09-01 17:04:32 +00002511 if (isInterestingIdentifier(II, Macro)) {
Douglas Gregor5998da52009-04-28 21:32:13 +00002512 DataLen += 2; // 2 bytes for builtin ID, flags
Douglas Gregorce835df2011-09-14 22:14:14 +00002513 if (hasMacroDefinition(II, Macro))
Douglas Gregor13292642011-12-02 15:45:10 +00002514 DataLen += 8;
Douglas Gregoreee242f2011-10-27 09:33:13 +00002515
2516 for (IdentifierResolver::iterator D = IdResolver.begin(II),
2517 DEnd = IdResolver.end();
Douglas Gregora92193e2009-04-28 21:18:29 +00002518 D != DEnd; ++D)
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002519 DataLen += sizeof(DeclID);
Douglas Gregora92193e2009-04-28 21:18:29 +00002520 }
Douglas Gregor668c1a42009-04-21 22:25:48 +00002521 clang::io::Emit16(Out, DataLen);
Douglas Gregor02fc7512009-04-28 20:01:51 +00002522 // We emit the key length after the data length so that every
2523 // string is preceded by a 16-bit length. This matches the PTH
2524 // format for storing identifiers.
Douglas Gregord6595a42009-04-25 21:04:17 +00002525 clang::io::Emit16(Out, KeyLen);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002526 return std::make_pair(KeyLen, DataLen);
2527 }
Mike Stump1eb44332009-09-09 15:08:12 +00002528
Chris Lattner5f9e2722011-07-23 10:55:15 +00002529 void EmitKey(raw_ostream& Out, const IdentifierInfo* II,
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002530 unsigned KeyLen) {
2531 // Record the location of the key data. This is used when generating
2532 // the mapping from persistent IDs to strings.
2533 Writer.SetIdentifierOffset(II, Out.tell());
Daniel Dunbare013d682009-10-18 20:26:12 +00002534 Out.write(II->getNameStart(), KeyLen);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002535 }
Mike Stump1eb44332009-09-09 15:08:12 +00002536
Douglas Gregor7143aab2011-09-01 17:04:32 +00002537 void EmitData(raw_ostream& Out, IdentifierInfo* II,
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002538 IdentID ID, unsigned) {
Douglas Gregorce835df2011-09-14 22:14:14 +00002539 MacroInfo *Macro = 0;
Douglas Gregor7143aab2011-09-01 17:04:32 +00002540 if (!isInterestingIdentifier(II, Macro)) {
Douglas Gregora92193e2009-04-28 21:18:29 +00002541 clang::io::Emit32(Out, ID << 1);
2542 return;
2543 }
Douglas Gregor5998da52009-04-28 21:32:13 +00002544
Douglas Gregora92193e2009-04-28 21:18:29 +00002545 clang::io::Emit32(Out, (ID << 1) | 0x01);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002546 uint32_t Bits = 0;
Douglas Gregorce835df2011-09-14 22:14:14 +00002547 bool HasMacroDefinition = hasMacroDefinition(II, Macro);
Douglas Gregor5998da52009-04-28 21:32:13 +00002548 Bits = (uint32_t)II->getObjCOrBuiltinID();
Craig Topper925be542011-12-19 05:04:33 +00002549 assert((Bits & 0x7ff) == Bits && "ObjCOrBuiltinID too big for ASTReader.");
Douglas Gregorce835df2011-09-14 22:14:14 +00002550 Bits = (Bits << 1) | unsigned(HasMacroDefinition);
Daniel Dunbarb0b84382009-12-18 20:58:47 +00002551 Bits = (Bits << 1) | unsigned(II->isExtensionToken());
2552 Bits = (Bits << 1) | unsigned(II->isPoisoned());
Argyrios Kyrtzidis646395b2010-08-11 22:55:12 +00002553 Bits = (Bits << 1) | unsigned(II->hasRevertedTokenIDToIdentifier());
Daniel Dunbarb0b84382009-12-18 20:58:47 +00002554 Bits = (Bits << 1) | unsigned(II->isCPlusPlusOperatorKeyword());
Douglas Gregor5998da52009-04-28 21:32:13 +00002555 clang::io::Emit16(Out, Bits);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002556
Douglas Gregor13292642011-12-02 15:45:10 +00002557 if (HasMacroDefinition) {
Douglas Gregor5998da52009-04-28 21:32:13 +00002558 clang::io::Emit32(Out, Writer.getMacroOffset(II));
Douglas Gregor13292642011-12-02 15:45:10 +00002559 clang::io::Emit32(Out,
2560 Writer.inferSubmoduleIDFromLocation(Macro->getDefinitionLoc()));
2561 }
2562
Douglas Gregor668c1a42009-04-21 22:25:48 +00002563 // Emit the declaration IDs in reverse order, because the
2564 // IdentifierResolver provides the declarations as they would be
2565 // visible (e.g., the function "stat" would come before the struct
Douglas Gregoreee242f2011-10-27 09:33:13 +00002566 // "stat"), but the ASTReader adds declarations to the end of the list
2567 // (so we need to see the struct "status" before the function "status").
Sebastian Redlf2f0f032010-07-23 23:49:55 +00002568 // Only emit declarations that aren't from a chained PCH, though.
Douglas Gregoreee242f2011-10-27 09:33:13 +00002569 SmallVector<Decl *, 16> Decls(IdResolver.begin(II),
2570 IdResolver.end());
Chris Lattner5f9e2722011-07-23 10:55:15 +00002571 for (SmallVector<Decl *, 16>::reverse_iterator D = Decls.rbegin(),
Douglas Gregoreee242f2011-10-27 09:33:13 +00002572 DEnd = Decls.rend();
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002573 D != DEnd; ++D)
Sebastian Redld8c5abb2010-08-02 18:30:12 +00002574 clang::io::Emit32(Out, Writer.getDeclID(*D));
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002575 }
2576};
2577} // end anonymous namespace
2578
Sebastian Redl3397c552010-08-18 23:56:27 +00002579/// \brief Write the identifier table into the AST file.
Douglas Gregorafaf3082009-04-11 00:14:32 +00002580///
2581/// The identifier table consists of a blob containing string data
2582/// (the actual identifiers themselves) and a separate "offsets" index
2583/// that maps identifier IDs to locations within the blob.
Douglas Gregoreee242f2011-10-27 09:33:13 +00002584void ASTWriter::WriteIdentifierTable(Preprocessor &PP,
2585 IdentifierResolver &IdResolver,
2586 bool IsModule) {
Douglas Gregorafaf3082009-04-11 00:14:32 +00002587 using namespace llvm;
2588
2589 // Create and write out the blob that contains the identifier
2590 // strings.
Douglas Gregorafaf3082009-04-11 00:14:32 +00002591 {
Sebastian Redl3397c552010-08-18 23:56:27 +00002592 OnDiskChainedHashTableGenerator<ASTIdentifierTableTrait> Generator;
Douglas Gregoreee242f2011-10-27 09:33:13 +00002593 ASTIdentifierTableTrait Trait(*this, PP, IdResolver, IsModule);
Mike Stump1eb44332009-09-09 15:08:12 +00002594
Douglas Gregor92b059e2009-04-28 20:33:11 +00002595 // Look for any identifiers that were named while processing the
2596 // headers, but are otherwise not needed. We add these to the hash
2597 // table to enable checking of the predefines buffer in the case
Sebastian Redl3397c552010-08-18 23:56:27 +00002598 // where the user adds new macro definitions when building the AST
Douglas Gregor92b059e2009-04-28 20:33:11 +00002599 // file.
2600 for (IdentifierTable::iterator ID = PP.getIdentifierTable().begin(),
2601 IDEnd = PP.getIdentifierTable().end();
2602 ID != IDEnd; ++ID)
2603 getIdentifierRef(ID->second);
2604
Sebastian Redlf2f0f032010-07-23 23:49:55 +00002605 // Create the on-disk hash table representation. We only store offsets
2606 // for identifiers that appear here for the first time.
2607 IdentifierOffsets.resize(NextIdentID - FirstIdentID);
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002608 for (llvm::DenseMap<const IdentifierInfo *, IdentID>::iterator
Douglas Gregorafaf3082009-04-11 00:14:32 +00002609 ID = IdentifierIDs.begin(), IDEnd = IdentifierIDs.end();
2610 ID != IDEnd; ++ID) {
2611 assert(ID->first && "NULL identifier in identifier table");
Douglas Gregoreee242f2011-10-27 09:33:13 +00002612 if (!Chain || !ID->first->isFromAST() ||
2613 ID->first->hasChangedSinceDeserialization())
Douglas Gregor7143aab2011-09-01 17:04:32 +00002614 Generator.insert(const_cast<IdentifierInfo *>(ID->first), ID->second,
2615 Trait);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002616 }
Douglas Gregorafaf3082009-04-11 00:14:32 +00002617
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002618 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00002619 SmallString<4096> IdentifierTable;
Douglas Gregor668c1a42009-04-21 22:25:48 +00002620 uint32_t BucketOffset;
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002621 {
Douglas Gregoreee242f2011-10-27 09:33:13 +00002622 ASTIdentifierTableTrait Trait(*this, PP, IdResolver, IsModule);
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002623 llvm::raw_svector_ostream Out(IdentifierTable);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002624 // Make sure that no bucket is at offset 0
Douglas Gregora67e58c2009-04-24 21:49:02 +00002625 clang::io::Emit32(Out, 0);
Douglas Gregor668c1a42009-04-21 22:25:48 +00002626 BucketOffset = Generator.Emit(Out, Trait);
Douglas Gregorafaf3082009-04-11 00:14:32 +00002627 }
2628
2629 // Create a blob abbreviation
2630 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002631 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_TABLE));
Douglas Gregor668c1a42009-04-21 22:25:48 +00002632 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
Douglas Gregor3251ceb2009-04-20 20:36:09 +00002633 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
Douglas Gregorc9490c02009-04-16 22:23:12 +00002634 unsigned IDTableAbbrev = Stream.EmitAbbrev(Abbrev);
Douglas Gregorafaf3082009-04-11 00:14:32 +00002635
2636 // Write the identifier table
2637 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002638 Record.push_back(IDENTIFIER_TABLE);
Douglas Gregor668c1a42009-04-21 22:25:48 +00002639 Record.push_back(BucketOffset);
Daniel Dunbarec312a12009-08-24 09:31:37 +00002640 Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable.str());
Douglas Gregorafaf3082009-04-11 00:14:32 +00002641 }
2642
2643 // Write the offsets table for identifier IDs.
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002644 BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002645 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_OFFSET));
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002646 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of identifiers
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002647 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002648 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2649 unsigned IdentifierOffsetAbbrev = Stream.EmitAbbrev(Abbrev);
2650
2651 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002652 Record.push_back(IDENTIFIER_OFFSET);
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002653 Record.push_back(IdentifierOffsets.size());
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002654 Record.push_back(FirstIdentID - NUM_PREDEF_IDENT_IDS);
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002655 Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
Benjamin Kramer6e089c62011-04-24 17:44:50 +00002656 data(IdentifierOffsets));
Douglas Gregorafaf3082009-04-11 00:14:32 +00002657}
2658
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002659//===----------------------------------------------------------------------===//
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002660// DeclContext's Name Lookup Table Serialization
2661//===----------------------------------------------------------------------===//
2662
2663namespace {
2664// Trait used for the on-disk hash table used in the method pool.
2665class ASTDeclContextNameLookupTrait {
2666 ASTWriter &Writer;
2667
2668public:
2669 typedef DeclarationName key_type;
2670 typedef key_type key_type_ref;
2671
2672 typedef DeclContext::lookup_result data_type;
2673 typedef const data_type& data_type_ref;
2674
2675 explicit ASTDeclContextNameLookupTrait(ASTWriter &Writer) : Writer(Writer) { }
2676
2677 unsigned ComputeHash(DeclarationName Name) {
2678 llvm::FoldingSetNodeID ID;
2679 ID.AddInteger(Name.getNameKind());
2680
2681 switch (Name.getNameKind()) {
2682 case DeclarationName::Identifier:
2683 ID.AddString(Name.getAsIdentifierInfo()->getName());
2684 break;
2685 case DeclarationName::ObjCZeroArgSelector:
2686 case DeclarationName::ObjCOneArgSelector:
2687 case DeclarationName::ObjCMultiArgSelector:
2688 ID.AddInteger(serialization::ComputeHash(Name.getObjCSelector()));
2689 break;
2690 case DeclarationName::CXXConstructorName:
2691 case DeclarationName::CXXDestructorName:
2692 case DeclarationName::CXXConversionFunctionName:
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002693 break;
2694 case DeclarationName::CXXOperatorName:
2695 ID.AddInteger(Name.getCXXOverloadedOperator());
2696 break;
2697 case DeclarationName::CXXLiteralOperatorName:
2698 ID.AddString(Name.getCXXLiteralIdentifier()->getName());
2699 case DeclarationName::CXXUsingDirective:
2700 break;
2701 }
2702
2703 return ID.ComputeHash();
2704 }
2705
2706 std::pair<unsigned,unsigned>
Chris Lattner5f9e2722011-07-23 10:55:15 +00002707 EmitKeyDataLength(raw_ostream& Out, DeclarationName Name,
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002708 data_type_ref Lookup) {
2709 unsigned KeyLen = 1;
2710 switch (Name.getNameKind()) {
2711 case DeclarationName::Identifier:
2712 case DeclarationName::ObjCZeroArgSelector:
2713 case DeclarationName::ObjCOneArgSelector:
2714 case DeclarationName::ObjCMultiArgSelector:
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002715 case DeclarationName::CXXLiteralOperatorName:
2716 KeyLen += 4;
2717 break;
2718 case DeclarationName::CXXOperatorName:
2719 KeyLen += 1;
2720 break;
Douglas Gregore3605012011-08-02 18:32:54 +00002721 case DeclarationName::CXXConstructorName:
2722 case DeclarationName::CXXDestructorName:
2723 case DeclarationName::CXXConversionFunctionName:
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002724 case DeclarationName::CXXUsingDirective:
2725 break;
2726 }
2727 clang::io::Emit16(Out, KeyLen);
2728
2729 // 2 bytes for num of decls and 4 for each DeclID.
2730 unsigned DataLen = 2 + 4 * (Lookup.second - Lookup.first);
2731 clang::io::Emit16(Out, DataLen);
2732
2733 return std::make_pair(KeyLen, DataLen);
2734 }
2735
Chris Lattner5f9e2722011-07-23 10:55:15 +00002736 void EmitKey(raw_ostream& Out, DeclarationName Name, unsigned) {
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002737 using namespace clang::io;
2738
2739 assert(Name.getNameKind() < 0x100 && "Invalid name kind ?");
2740 Emit8(Out, Name.getNameKind());
2741 switch (Name.getNameKind()) {
2742 case DeclarationName::Identifier:
2743 Emit32(Out, Writer.getIdentifierRef(Name.getAsIdentifierInfo()));
2744 break;
2745 case DeclarationName::ObjCZeroArgSelector:
2746 case DeclarationName::ObjCOneArgSelector:
2747 case DeclarationName::ObjCMultiArgSelector:
2748 Emit32(Out, Writer.getSelectorRef(Name.getObjCSelector()));
2749 break;
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002750 case DeclarationName::CXXOperatorName:
2751 assert(Name.getCXXOverloadedOperator() < 0x100 && "Invalid operator ?");
2752 Emit8(Out, Name.getCXXOverloadedOperator());
2753 break;
2754 case DeclarationName::CXXLiteralOperatorName:
2755 Emit32(Out, Writer.getIdentifierRef(Name.getCXXLiteralIdentifier()));
2756 break;
Douglas Gregore3605012011-08-02 18:32:54 +00002757 case DeclarationName::CXXConstructorName:
2758 case DeclarationName::CXXDestructorName:
2759 case DeclarationName::CXXConversionFunctionName:
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002760 case DeclarationName::CXXUsingDirective:
2761 break;
2762 }
2763 }
2764
Chris Lattner5f9e2722011-07-23 10:55:15 +00002765 void EmitData(raw_ostream& Out, key_type_ref,
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00002766 data_type Lookup, unsigned DataLen) {
2767 uint64_t Start = Out.tell(); (void)Start;
2768 clang::io::Emit16(Out, Lookup.second - Lookup.first);
2769 for (; Lookup.first != Lookup.second; ++Lookup.first)
2770 clang::io::Emit32(Out, Writer.GetDeclRef(*Lookup.first));
2771
2772 assert(Out.tell() - Start == DataLen && "Data length is wrong");
2773 }
2774};
2775} // end anonymous namespace
2776
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002777/// \brief Write the block containing all of the declaration IDs
2778/// visible from the given DeclContext.
2779///
2780/// \returns the offset of the DECL_CONTEXT_VISIBLE block within the
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002781/// bitstream, or 0 if no block was written.
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002782uint64_t ASTWriter::WriteDeclContextVisibleBlock(ASTContext &Context,
2783 DeclContext *DC) {
2784 if (DC->getPrimaryContext() != DC)
2785 return 0;
2786
2787 // Since there is no name lookup into functions or methods, don't bother to
2788 // build a visible-declarations table for these entities.
2789 if (DC->isFunctionOrMethod())
2790 return 0;
2791
2792 // If not in C++, we perform name lookup for the translation unit via the
2793 // IdentifierInfo chains, don't bother to build a visible-declarations table.
2794 // FIXME: In C++ we need the visible declarations in order to "see" the
2795 // friend declarations, is there a way to do this without writing the table ?
David Blaikie4e4d0842012-03-11 07:00:24 +00002796 if (DC->isTranslationUnit() && !Context.getLangOpts().CPlusPlus)
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002797 return 0;
2798
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002799 // Serialize the contents of the mapping used for lookup. Note that,
2800 // although we have two very different code paths, the serialized
2801 // representation is the same for both cases: a declaration name,
2802 // followed by a size, followed by references to the visible
2803 // declarations that have that name.
2804 uint64_t Offset = Stream.GetCurrentBitNo();
Richard Smithc5d3e802012-03-16 06:12:59 +00002805 StoredDeclsMap *Map = DC->buildLookup();
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002806 if (!Map || Map->empty())
2807 return 0;
2808
2809 OnDiskChainedHashTableGenerator<ASTDeclContextNameLookupTrait> Generator;
2810 ASTDeclContextNameLookupTrait Trait(*this);
2811
2812 // Create the on-disk hash table representation.
Douglas Gregore5a54b62011-08-30 20:49:19 +00002813 DeclarationName ConversionName;
2814 llvm::SmallVector<NamedDecl *, 4> ConversionDecls;
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002815 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
2816 D != DEnd; ++D) {
2817 DeclarationName Name = D->first;
2818 DeclContext::lookup_result Result = D->second.getLookupResult();
Douglas Gregore5a54b62011-08-30 20:49:19 +00002819 if (Result.first != Result.second) {
2820 if (Name.getNameKind() == DeclarationName::CXXConversionFunctionName) {
2821 // Hash all conversion function names to the same name. The actual
2822 // type information in conversion function name is not used in the
2823 // key (since such type information is not stable across different
2824 // modules), so the intended effect is to coalesce all of the conversion
2825 // functions under a single key.
2826 if (!ConversionName)
2827 ConversionName = Name;
2828 ConversionDecls.append(Result.first, Result.second);
2829 continue;
2830 }
2831
Argyrios Kyrtzidis45118d82011-08-30 19:43:23 +00002832 Generator.insert(Name, Result, Trait);
Douglas Gregore5a54b62011-08-30 20:49:19 +00002833 }
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002834 }
2835
Douglas Gregore5a54b62011-08-30 20:49:19 +00002836 // Add the conversion functions
2837 if (!ConversionDecls.empty()) {
2838 Generator.insert(ConversionName,
2839 DeclContext::lookup_result(ConversionDecls.begin(),
2840 ConversionDecls.end()),
2841 Trait);
2842 }
2843
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002844 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00002845 SmallString<4096> LookupTable;
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00002846 uint32_t BucketOffset;
2847 {
2848 llvm::raw_svector_ostream Out(LookupTable);
2849 // Make sure that no bucket is at offset 0
2850 clang::io::Emit32(Out, 0);
2851 BucketOffset = Generator.Emit(Out, Trait);
2852 }
2853
2854 // Write the lookup table
2855 RecordData Record;
2856 Record.push_back(DECL_CONTEXT_VISIBLE);
2857 Record.push_back(BucketOffset);
2858 Stream.EmitRecordWithBlob(DeclContextVisibleLookupAbbrev, Record,
2859 LookupTable.str());
2860
2861 Stream.EmitRecord(DECL_CONTEXT_VISIBLE, Record);
2862 ++NumVisibleDeclContexts;
2863 return Offset;
2864}
2865
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002866/// \brief Write an UPDATE_VISIBLE block for the given context.
2867///
2868/// UPDATE_VISIBLE blocks contain the declarations that are added to an existing
2869/// DeclContext in a dependent AST file. As such, they only exist for the TU
Richard Smithc5d3e802012-03-16 06:12:59 +00002870/// (in C++), for namespaces, and for classes with forward-declared unscoped
2871/// enumeration members (in C++11).
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002872void ASTWriter::WriteDeclContextVisibleUpdate(const DeclContext *DC) {
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002873 StoredDeclsMap *Map = static_cast<StoredDeclsMap*>(DC->getLookupPtr());
2874 if (!Map || Map->empty())
2875 return;
2876
2877 OnDiskChainedHashTableGenerator<ASTDeclContextNameLookupTrait> Generator;
2878 ASTDeclContextNameLookupTrait Trait(*this);
2879
2880 // Create the hash table.
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002881 for (StoredDeclsMap::iterator D = Map->begin(), DEnd = Map->end();
2882 D != DEnd; ++D) {
2883 DeclarationName Name = D->first;
2884 DeclContext::lookup_result Result = D->second.getLookupResult();
Sebastian Redl5967d622010-08-24 00:50:16 +00002885 // For any name that appears in this table, the results are complete, i.e.
2886 // they overwrite results from previous PCHs. Merging is always a mess.
Argyrios Kyrtzidis45118d82011-08-30 19:43:23 +00002887 if (Result.first != Result.second)
2888 Generator.insert(Name, Result, Trait);
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002889 }
2890
2891 // Create the on-disk hash table in a buffer.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00002892 SmallString<4096> LookupTable;
Sebastian Redl1d1e42b2010-08-24 00:50:09 +00002893 uint32_t BucketOffset;
2894 {
2895 llvm::raw_svector_ostream Out(LookupTable);
2896 // Make sure that no bucket is at offset 0
2897 clang::io::Emit32(Out, 0);
2898 BucketOffset = Generator.Emit(Out, Trait);
2899 }
2900
2901 // Write the lookup table
2902 RecordData Record;
2903 Record.push_back(UPDATE_VISIBLE);
2904 Record.push_back(getDeclID(cast<Decl>(DC)));
2905 Record.push_back(BucketOffset);
2906 Stream.EmitRecordWithBlob(UpdateVisibleAbbrev, Record, LookupTable.str());
2907}
2908
Peter Collingbourne84bccea2011-02-15 19:46:30 +00002909/// \brief Write an FP_PRAGMA_OPTIONS block for the given FPOptions.
2910void ASTWriter::WriteFPPragmaOptions(const FPOptions &Opts) {
2911 RecordData Record;
2912 Record.push_back(Opts.fp_contract);
2913 Stream.EmitRecord(FP_PRAGMA_OPTIONS, Record);
2914}
2915
2916/// \brief Write an OPENCL_EXTENSIONS block for the given OpenCLOptions.
2917void ASTWriter::WriteOpenCLExtensions(Sema &SemaRef) {
David Blaikie4e4d0842012-03-11 07:00:24 +00002918 if (!SemaRef.Context.getLangOpts().OpenCL)
Peter Collingbourne84bccea2011-02-15 19:46:30 +00002919 return;
2920
2921 const OpenCLOptions &Opts = SemaRef.getOpenCLOptions();
2922 RecordData Record;
2923#define OPENCLEXT(nm) Record.push_back(Opts.nm);
2924#include "clang/Basic/OpenCLExtensions.def"
2925 Stream.EmitRecord(OPENCL_EXTENSIONS, Record);
2926}
2927
Douglas Gregor2171bf12012-01-15 16:58:34 +00002928void ASTWriter::WriteRedeclarations() {
2929 RecordData LocalRedeclChains;
2930 SmallVector<serialization::LocalRedeclarationsInfo, 2> LocalRedeclsMap;
2931
2932 for (unsigned I = 0, N = Redeclarations.size(); I != N; ++I) {
2933 Decl *First = Redeclarations[I];
2934 assert(First->getPreviousDecl() == 0 && "Not the first declaration?");
2935
2936 Decl *MostRecent = First->getMostRecentDecl();
2937
2938 // If we only have a single declaration, there is no point in storing
2939 // a redeclaration chain.
2940 if (First == MostRecent)
2941 continue;
2942
2943 unsigned Offset = LocalRedeclChains.size();
2944 unsigned Size = 0;
2945 LocalRedeclChains.push_back(0); // Placeholder for the size.
2946
2947 // Collect the set of local redeclarations of this declaration.
2948 for (Decl *Prev = MostRecent; Prev != First;
2949 Prev = Prev->getPreviousDecl()) {
2950 if (!Prev->isFromASTFile()) {
2951 AddDeclRef(Prev, LocalRedeclChains);
2952 ++Size;
2953 }
2954 }
2955 LocalRedeclChains[Offset] = Size;
2956
2957 // Reverse the set of local redeclarations, so that we store them in
2958 // order (since we found them in reverse order).
2959 std::reverse(LocalRedeclChains.end() - Size, LocalRedeclChains.end());
2960
2961 // Add the mapping from the first ID to the set of local declarations.
2962 LocalRedeclarationsInfo Info = { getDeclID(First), Offset };
2963 LocalRedeclsMap.push_back(Info);
2964
2965 assert(N == Redeclarations.size() &&
2966 "Deserialized a declaration we shouldn't have");
2967 }
2968
2969 if (LocalRedeclChains.empty())
2970 return;
2971
2972 // Sort the local redeclarations map by the first declaration ID,
2973 // since the reader will be performing binary searches on this information.
2974 llvm::array_pod_sort(LocalRedeclsMap.begin(), LocalRedeclsMap.end());
2975
2976 // Emit the local redeclarations map.
2977 using namespace llvm;
2978 llvm::BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
2979 Abbrev->Add(BitCodeAbbrevOp(LOCAL_REDECLARATIONS_MAP));
2980 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # of entries
2981 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2982 unsigned AbbrevID = Stream.EmitAbbrev(Abbrev);
2983
2984 RecordData Record;
2985 Record.push_back(LOCAL_REDECLARATIONS_MAP);
2986 Record.push_back(LocalRedeclsMap.size());
2987 Stream.EmitRecordWithBlob(AbbrevID, Record,
2988 reinterpret_cast<char*>(LocalRedeclsMap.data()),
2989 LocalRedeclsMap.size() * sizeof(LocalRedeclarationsInfo));
2990
2991 // Emit the redeclaration chains.
2992 Stream.EmitRecord(LOCAL_REDECLARATIONS, LocalRedeclChains);
2993}
2994
Douglas Gregorcff9f262012-01-27 01:47:08 +00002995void ASTWriter::WriteObjCCategories() {
2996 llvm::SmallVector<ObjCCategoriesInfo, 2> CategoriesMap;
2997 RecordData Categories;
2998
2999 for (unsigned I = 0, N = ObjCClassesWithCategories.size(); I != N; ++I) {
3000 unsigned Size = 0;
3001 unsigned StartIndex = Categories.size();
3002
3003 ObjCInterfaceDecl *Class = ObjCClassesWithCategories[I];
3004
3005 // Allocate space for the size.
3006 Categories.push_back(0);
3007
3008 // Add the categories.
3009 for (ObjCCategoryDecl *Cat = Class->getCategoryList();
3010 Cat; Cat = Cat->getNextClassCategory(), ++Size) {
3011 assert(getDeclID(Cat) != 0 && "Bogus category");
3012 AddDeclRef(Cat, Categories);
3013 }
3014
3015 // Update the size.
3016 Categories[StartIndex] = Size;
3017
3018 // Record this interface -> category map.
3019 ObjCCategoriesInfo CatInfo = { getDeclID(Class), StartIndex };
3020 CategoriesMap.push_back(CatInfo);
3021 }
3022
3023 // Sort the categories map by the definition ID, since the reader will be
3024 // performing binary searches on this information.
3025 llvm::array_pod_sort(CategoriesMap.begin(), CategoriesMap.end());
3026
3027 // Emit the categories map.
3028 using namespace llvm;
3029 llvm::BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
3030 Abbrev->Add(BitCodeAbbrevOp(OBJC_CATEGORIES_MAP));
3031 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # of entries
3032 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3033 unsigned AbbrevID = Stream.EmitAbbrev(Abbrev);
3034
3035 RecordData Record;
3036 Record.push_back(OBJC_CATEGORIES_MAP);
3037 Record.push_back(CategoriesMap.size());
3038 Stream.EmitRecordWithBlob(AbbrevID, Record,
3039 reinterpret_cast<char*>(CategoriesMap.data()),
3040 CategoriesMap.size() * sizeof(ObjCCategoriesInfo));
3041
3042 // Emit the category lists.
3043 Stream.EmitRecord(OBJC_CATEGORIES, Categories);
3044}
3045
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00003046void ASTWriter::WriteMergedDecls() {
3047 if (!Chain || Chain->MergedDecls.empty())
3048 return;
3049
3050 RecordData Record;
3051 for (ASTReader::MergedDeclsMap::iterator I = Chain->MergedDecls.begin(),
3052 IEnd = Chain->MergedDecls.end();
3053 I != IEnd; ++I) {
Douglas Gregorb6b60c12012-01-05 22:27:05 +00003054 DeclID CanonID = I->first->isFromASTFile()? I->first->getGlobalID()
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00003055 : getDeclID(I->first);
3056 assert(CanonID && "Merged declaration not known?");
3057
3058 Record.push_back(CanonID);
3059 Record.push_back(I->second.size());
3060 Record.append(I->second.begin(), I->second.end());
3061 }
3062 Stream.EmitRecord(MERGED_DECLARATIONS, Record);
3063}
3064
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00003065//===----------------------------------------------------------------------===//
Douglas Gregor4fed3f42009-04-27 18:38:38 +00003066// General Serialization Routines
3067//===----------------------------------------------------------------------===//
3068
Douglas Gregor68a2eb02009-04-15 21:30:51 +00003069/// \brief Write a record containing the given attributes.
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003070void ASTWriter::WriteAttributes(const AttrVec &Attrs, RecordDataImpl &Record) {
Argyrios Kyrtzidis4eb9fc02010-10-18 19:20:11 +00003071 Record.push_back(Attrs.size());
Sean Huntcf807c42010-08-18 23:23:40 +00003072 for (AttrVec::const_iterator i = Attrs.begin(), e = Attrs.end(); i != e; ++i){
3073 const Attr * A = *i;
3074 Record.push_back(A->getKind()); // FIXME: stable encoding, target attrs
Argyrios Kyrtzidis768d6ca2011-09-13 16:05:58 +00003075 AddSourceRange(A->getRange(), Record);
Douglas Gregor68a2eb02009-04-15 21:30:51 +00003076
Sean Huntcf807c42010-08-18 23:23:40 +00003077#include "clang/Serialization/AttrPCHWrite.inc"
Daniel Dunbar4e9255f2010-05-27 02:25:39 +00003078
Douglas Gregor68a2eb02009-04-15 21:30:51 +00003079 }
Douglas Gregor68a2eb02009-04-15 21:30:51 +00003080}
3081
Chris Lattner5f9e2722011-07-23 10:55:15 +00003082void ASTWriter::AddString(StringRef Str, RecordDataImpl &Record) {
Douglas Gregor68a2eb02009-04-15 21:30:51 +00003083 Record.push_back(Str.size());
3084 Record.insert(Record.end(), Str.begin(), Str.end());
3085}
3086
Douglas Gregor0a0d2b12011-03-23 00:50:03 +00003087void ASTWriter::AddVersionTuple(const VersionTuple &Version,
3088 RecordDataImpl &Record) {
3089 Record.push_back(Version.getMajor());
3090 if (llvm::Optional<unsigned> Minor = Version.getMinor())
3091 Record.push_back(*Minor + 1);
3092 else
3093 Record.push_back(0);
3094 if (llvm::Optional<unsigned> Subminor = Version.getSubminor())
3095 Record.push_back(*Subminor + 1);
3096 else
3097 Record.push_back(0);
3098}
3099
Douglas Gregor3251ceb2009-04-20 20:36:09 +00003100/// \brief Note that the identifier II occurs at the given offset
3101/// within the identifier table.
Sebastian Redla4232eb2010-08-18 23:56:21 +00003102void ASTWriter::SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003103 IdentID ID = IdentifierIDs[II];
Sebastian Redl3397c552010-08-18 23:56:27 +00003104 // Only store offsets new to this AST file. Other identifier names are looked
Sebastian Redlf2f0f032010-07-23 23:49:55 +00003105 // up earlier in the chain and thus don't need an offset.
3106 if (ID >= FirstIdentID)
3107 IdentifierOffsets[ID - FirstIdentID] = Offset;
Douglas Gregor3251ceb2009-04-20 20:36:09 +00003108}
3109
Douglas Gregor83941df2009-04-25 17:48:32 +00003110/// \brief Note that the selector Sel occurs at the given offset
3111/// within the method pool/selector table.
Sebastian Redla4232eb2010-08-18 23:56:21 +00003112void ASTWriter::SetSelectorOffset(Selector Sel, uint32_t Offset) {
Douglas Gregor83941df2009-04-25 17:48:32 +00003113 unsigned ID = SelectorIDs[Sel];
3114 assert(ID && "Unknown selector");
Sebastian Redle58aa892010-08-04 18:21:41 +00003115 // Don't record offsets for selectors that are also available in a different
3116 // file.
3117 if (ID < FirstSelectorID)
3118 return;
3119 SelectorOffsets[ID - FirstSelectorID] = Offset;
Douglas Gregor83941df2009-04-25 17:48:32 +00003120}
3121
Sebastian Redla4232eb2010-08-18 23:56:21 +00003122ASTWriter::ASTWriter(llvm::BitstreamWriter &Stream)
Douglas Gregore209e502011-12-06 01:10:29 +00003123 : Stream(Stream), Context(0), PP(0), Chain(0), WritingModule(0),
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +00003124 WritingAST(false), ASTHasCompilerErrors(false),
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00003125 FirstDeclID(NUM_PREDEF_DECL_IDS), NextDeclID(FirstDeclID),
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003126 FirstTypeID(NUM_PREDEF_TYPE_IDS), NextTypeID(FirstTypeID),
Douglas Gregor6ec60e02011-08-03 21:49:18 +00003127 FirstIdentID(NUM_PREDEF_IDENT_IDS), NextIdentID(FirstIdentID),
Douglas Gregor26ced122011-12-01 00:59:36 +00003128 FirstSubmoduleID(NUM_PREDEF_SUBMODULE_IDS),
3129 NextSubmoduleID(FirstSubmoduleID),
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00003130 FirstSelectorID(NUM_PREDEF_SELECTOR_IDS), NextSelectorID(FirstSelectorID),
Douglas Gregor77424bc2010-10-02 19:29:26 +00003131 CollectedStmts(&StmtsToEmit),
Sebastian Redle58aa892010-08-04 18:21:41 +00003132 NumStatements(0), NumMacros(0), NumLexicalDeclContexts(0),
Douglas Gregora72d8c42011-06-03 02:27:19 +00003133 NumVisibleDeclContexts(0),
Douglas Gregore92b8a12011-08-04 00:01:48 +00003134 NextCXXBaseSpecifiersID(1),
Jonathan D. Turner953c5642011-06-03 23:11:16 +00003135 DeclParmVarAbbrev(0), DeclContextLexicalAbbrev(0),
Douglas Gregora72d8c42011-06-03 02:27:19 +00003136 DeclContextVisibleLookupAbbrev(0), UpdateVisibleAbbrev(0),
3137 DeclRefExprAbbrev(0), CharacterLiteralAbbrev(0),
3138 DeclRecordAbbrev(0), IntegerLiteralAbbrev(0),
Jonathan D. Turner953c5642011-06-03 23:11:16 +00003139 DeclTypedefAbbrev(0),
3140 DeclVarAbbrev(0), DeclFieldAbbrev(0),
3141 DeclEnumAbbrev(0), DeclObjCIvarAbbrev(0)
Douglas Gregor7c789c12010-10-29 22:39:52 +00003142{
Sebastian Redl30c514c2010-07-14 23:45:08 +00003143}
Douglas Gregor2cf26342009-04-09 22:27:44 +00003144
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003145ASTWriter::~ASTWriter() {
3146 for (FileDeclIDsTy::iterator
3147 I = FileDeclIDs.begin(), E = FileDeclIDs.end(); I != E; ++I)
3148 delete I->second;
3149}
3150
Sebastian Redla4232eb2010-08-18 23:56:21 +00003151void ASTWriter::WriteAST(Sema &SemaRef, MemorizeStatCalls *StatCalls,
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00003152 const std::string &OutputFile,
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +00003153 Module *WritingModule, StringRef isysroot,
3154 bool hasErrors) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00003155 WritingAST = true;
3156
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +00003157 ASTHasCompilerErrors = hasErrors;
3158
Douglas Gregor2cf26342009-04-09 22:27:44 +00003159 // Emit the file header.
Douglas Gregorc9490c02009-04-16 22:23:12 +00003160 Stream.Emit((unsigned)'C', 8);
3161 Stream.Emit((unsigned)'P', 8);
3162 Stream.Emit((unsigned)'C', 8);
3163 Stream.Emit((unsigned)'H', 8);
Mike Stump1eb44332009-09-09 15:08:12 +00003164
Chris Lattnerb145b1e2009-04-26 22:26:21 +00003165 WriteBlockInfoBlock();
Douglas Gregor2cf26342009-04-09 22:27:44 +00003166
Douglas Gregor3b8043b2011-08-09 15:13:55 +00003167 Context = &SemaRef.Context;
Douglas Gregor185dbd72011-12-01 02:07:58 +00003168 PP = &SemaRef.PP;
Douglas Gregore209e502011-12-06 01:10:29 +00003169 this->WritingModule = WritingModule;
Douglas Gregora8cc6ce2011-11-30 04:39:39 +00003170 WriteASTCore(SemaRef, StatCalls, isysroot, OutputFile, WritingModule);
Douglas Gregor3b8043b2011-08-09 15:13:55 +00003171 Context = 0;
Douglas Gregor185dbd72011-12-01 02:07:58 +00003172 PP = 0;
Douglas Gregore209e502011-12-06 01:10:29 +00003173 this->WritingModule = 0;
Douglas Gregor61c5e342011-09-17 00:05:03 +00003174
3175 WritingAST = false;
Sebastian Redl1dc13a12010-07-12 22:02:52 +00003176}
3177
Douglas Gregora2ee20a2011-07-27 21:45:57 +00003178template<typename Vector>
3179static void AddLazyVectorDecls(ASTWriter &Writer, Vector &Vec,
3180 ASTWriter::RecordData &Record) {
3181 for (typename Vector::iterator I = Vec.begin(0, true), E = Vec.end();
3182 I != E; ++I) {
3183 Writer.AddDeclRef(*I, Record);
3184 }
3185}
3186
Sebastian Redla4232eb2010-08-18 23:56:21 +00003187void ASTWriter::WriteASTCore(Sema &SemaRef, MemorizeStatCalls *StatCalls,
Douglas Gregor832d6202011-07-22 16:35:34 +00003188 StringRef isysroot,
Douglas Gregora8cc6ce2011-11-30 04:39:39 +00003189 const std::string &OutputFile,
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003190 Module *WritingModule) {
Sebastian Redl1dc13a12010-07-12 22:02:52 +00003191 using namespace llvm;
3192
Douglas Gregorecc2c092011-12-01 22:20:10 +00003193 // Make sure that the AST reader knows to finalize itself.
3194 if (Chain)
3195 Chain->finalizeForWriting();
3196
Sebastian Redl1dc13a12010-07-12 22:02:52 +00003197 ASTContext &Context = SemaRef.Context;
3198 Preprocessor &PP = SemaRef.PP;
3199
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00003200 // Set up predefined declaration IDs.
3201 DeclIDs[Context.getTranslationUnitDecl()] = PREDEF_DECL_TRANSLATION_UNIT_ID;
Douglas Gregor4dfd02a2011-08-12 05:46:01 +00003202 if (Context.ObjCIdDecl)
3203 DeclIDs[Context.ObjCIdDecl] = PREDEF_DECL_OBJC_ID_ID;
Douglas Gregor7a27ea52011-08-12 06:17:30 +00003204 if (Context.ObjCSelDecl)
3205 DeclIDs[Context.ObjCSelDecl] = PREDEF_DECL_OBJC_SEL_ID;
Douglas Gregor79d67262011-08-12 05:59:41 +00003206 if (Context.ObjCClassDecl)
3207 DeclIDs[Context.ObjCClassDecl] = PREDEF_DECL_OBJC_CLASS_ID;
Douglas Gregora6ea10e2012-01-17 18:09:05 +00003208 if (Context.ObjCProtocolClassDecl)
3209 DeclIDs[Context.ObjCProtocolClassDecl] = PREDEF_DECL_OBJC_PROTOCOL_ID;
Douglas Gregor772eeae2011-08-12 06:49:56 +00003210 if (Context.Int128Decl)
3211 DeclIDs[Context.Int128Decl] = PREDEF_DECL_INT_128_ID;
3212 if (Context.UInt128Decl)
3213 DeclIDs[Context.UInt128Decl] = PREDEF_DECL_UNSIGNED_INT_128_ID;
Douglas Gregore97179c2011-09-08 01:46:34 +00003214 if (Context.ObjCInstanceTypeDecl)
3215 DeclIDs[Context.ObjCInstanceTypeDecl] = PREDEF_DECL_OBJC_INSTANCETYPE_ID;
Douglas Gregor79d67262011-08-12 05:59:41 +00003216
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003217 if (!Chain) {
3218 // Make sure that we emit IdentifierInfos (and any attached
3219 // declarations) for builtins. We don't need to do this when we're
3220 // emitting chained PCH files, because all of the builtins will be
3221 // in the original PCH file.
3222 // FIXME: Modules won't like this at all.
Douglas Gregor2deaea32009-04-22 18:49:13 +00003223 IdentifierTable &Table = PP.getIdentifierTable();
Chris Lattner5f9e2722011-07-23 10:55:15 +00003224 SmallVector<const char *, 32> BuiltinNames;
Douglas Gregor2deaea32009-04-22 18:49:13 +00003225 Context.BuiltinInfo.GetBuiltinNames(BuiltinNames,
David Blaikie4e4d0842012-03-11 07:00:24 +00003226 Context.getLangOpts().NoBuiltin);
Douglas Gregor2deaea32009-04-22 18:49:13 +00003227 for (unsigned I = 0, N = BuiltinNames.size(); I != N; ++I)
3228 getIdentifierRef(&Table.get(BuiltinNames[I]));
3229 }
3230
Douglas Gregoreee242f2011-10-27 09:33:13 +00003231 // If there are any out-of-date identifiers, bring them up to date.
3232 if (ExternalPreprocessorSource *ExtSource = PP.getExternalSource()) {
3233 for (IdentifierTable::iterator ID = PP.getIdentifierTable().begin(),
3234 IDEnd = PP.getIdentifierTable().end();
3235 ID != IDEnd; ++ID)
3236 if (ID->second->isOutOfDate())
3237 ExtSource->updateOutOfDateIdentifier(*ID->second);
3238 }
3239
Chris Lattner63d65f82009-09-08 18:19:27 +00003240 // Build a record containing all of the tentative definitions in this file, in
Sebastian Redle9d12b62010-01-31 22:27:38 +00003241 // TentativeDefinitions order. Generally, this record will be empty for
Chris Lattner63d65f82009-09-08 18:19:27 +00003242 // headers.
Douglas Gregor4c0e86b2009-04-22 22:02:47 +00003243 RecordData TentativeDefinitions;
Douglas Gregora2ee20a2011-07-27 21:45:57 +00003244 AddLazyVectorDecls(*this, SemaRef.TentativeDefinitions, TentativeDefinitions);
Douglas Gregora8623202011-07-27 20:58:46 +00003245
Argyrios Kyrtzidis49b96d12010-08-13 18:42:17 +00003246 // Build a record containing all of the file scoped decls in this file.
3247 RecordData UnusedFileScopedDecls;
Douglas Gregora2ee20a2011-07-27 21:45:57 +00003248 AddLazyVectorDecls(*this, SemaRef.UnusedFileScopedDecls,
3249 UnusedFileScopedDecls);
Sebastian Redl40566802010-08-05 18:21:25 +00003250
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003251 // Build a record containing all of the delegating constructors we still need
3252 // to resolve.
Sean Huntebcbe1d2011-05-04 23:29:54 +00003253 RecordData DelegatingCtorDecls;
Douglas Gregor0129b562011-07-27 21:57:17 +00003254 AddLazyVectorDecls(*this, SemaRef.DelegatingCtorDecls, DelegatingCtorDecls);
Sean Huntebcbe1d2011-05-04 23:29:54 +00003255
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003256 // Write the set of weak, undeclared identifiers. We always write the
3257 // entire table, since later PCH files in a PCH chain are only interested in
3258 // the results at the end of the chain.
Argyrios Kyrtzidis72b90572010-08-05 09:48:08 +00003259 RecordData WeakUndeclaredIdentifiers;
3260 if (!SemaRef.WeakUndeclaredIdentifiers.empty()) {
Douglas Gregor31e37b22011-07-28 18:09:57 +00003261 for (llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator
Argyrios Kyrtzidis72b90572010-08-05 09:48:08 +00003262 I = SemaRef.WeakUndeclaredIdentifiers.begin(),
3263 E = SemaRef.WeakUndeclaredIdentifiers.end(); I != E; ++I) {
3264 AddIdentifierRef(I->first, WeakUndeclaredIdentifiers);
3265 AddIdentifierRef(I->second.getAlias(), WeakUndeclaredIdentifiers);
3266 AddSourceLocation(I->second.getLocation(), WeakUndeclaredIdentifiers);
3267 WeakUndeclaredIdentifiers.push_back(I->second.getUsed());
3268 }
3269 }
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00003270
Douglas Gregor14c22f22009-04-22 22:18:58 +00003271 // Build a record containing all of the locally-scoped external
3272 // declarations in this header file. Generally, this record will be
3273 // empty.
3274 RecordData LocallyScopedExternalDecls;
Sebastian Redl3397c552010-08-18 23:56:27 +00003275 // FIXME: This is filling in the AST file in densemap order which is
Chris Lattner63d65f82009-09-08 18:19:27 +00003276 // nondeterminstic!
Mike Stump1eb44332009-09-09 15:08:12 +00003277 for (llvm::DenseMap<DeclarationName, NamedDecl *>::iterator
Douglas Gregor14c22f22009-04-22 22:18:58 +00003278 TD = SemaRef.LocallyScopedExternalDecls.begin(),
3279 TDEnd = SemaRef.LocallyScopedExternalDecls.end();
Douglas Gregorec12ce22011-07-28 14:20:37 +00003280 TD != TDEnd; ++TD) {
Douglas Gregor919814d2011-09-09 23:01:35 +00003281 if (!TD->second->isFromASTFile())
Douglas Gregorec12ce22011-07-28 14:20:37 +00003282 AddDeclRef(TD->second, LocallyScopedExternalDecls);
3283 }
3284
Douglas Gregorb81c1702009-04-27 20:06:05 +00003285 // Build a record containing all of the ext_vector declarations.
3286 RecordData ExtVectorDecls;
Douglas Gregord58a0a52011-07-28 00:39:29 +00003287 AddLazyVectorDecls(*this, SemaRef.ExtVectorDecls, ExtVectorDecls);
Douglas Gregorb81c1702009-04-27 20:06:05 +00003288
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003289 // Build a record containing all of the VTable uses information.
3290 RecordData VTableUses;
Argyrios Kyrtzidisbe4ebcd2010-08-03 17:29:52 +00003291 if (!SemaRef.VTableUses.empty()) {
Argyrios Kyrtzidisbe4ebcd2010-08-03 17:29:52 +00003292 for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
3293 AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
3294 AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
3295 VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
3296 }
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003297 }
3298
3299 // Build a record containing all of dynamic classes declarations.
3300 RecordData DynamicClasses;
Douglas Gregora126f172011-07-28 00:53:40 +00003301 AddLazyVectorDecls(*this, SemaRef.DynamicClasses, DynamicClasses);
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003302
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00003303 // Build a record containing all of pending implicit instantiations.
Chandler Carruth62c78d52010-08-25 08:44:16 +00003304 RecordData PendingInstantiations;
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00003305 for (std::deque<Sema::PendingImplicitInstantiation>::iterator
Chandler Carruth62c78d52010-08-25 08:44:16 +00003306 I = SemaRef.PendingInstantiations.begin(),
3307 N = SemaRef.PendingInstantiations.end(); I != N; ++I) {
3308 AddDeclRef(I->first, PendingInstantiations);
3309 AddSourceLocation(I->second, PendingInstantiations);
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00003310 }
3311 assert(SemaRef.PendingLocalImplicitInstantiations.empty() &&
3312 "There are local ones at end of translation unit!");
3313
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00003314 // Build a record containing some declaration references.
3315 RecordData SemaDeclRefs;
3316 if (SemaRef.StdNamespace || SemaRef.StdBadAlloc) {
3317 AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs);
3318 AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs);
3319 }
3320
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00003321 RecordData CUDASpecialDeclRefs;
3322 if (Context.getcudaConfigureCallDecl()) {
3323 AddDeclRef(Context.getcudaConfigureCallDecl(), CUDASpecialDeclRefs);
3324 }
3325
Douglas Gregord8bba9c2011-06-28 16:20:02 +00003326 // Build a record containing all of the known namespaces.
3327 RecordData KnownNamespaces;
3328 for (llvm::DenseMap<NamespaceDecl*, bool>::iterator
3329 I = SemaRef.KnownNamespaces.begin(),
3330 IEnd = SemaRef.KnownNamespaces.end();
3331 I != IEnd; ++I) {
3332 if (!I->second)
3333 AddDeclRef(I->first, KnownNamespaces);
3334 }
3335
Sebastian Redl3397c552010-08-18 23:56:27 +00003336 // Write the remaining AST contents.
Douglas Gregorad1de002009-04-18 05:55:16 +00003337 RecordData Record;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003338 Stream.EnterSubblock(AST_BLOCK_ID, 5);
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00003339 WriteMetadata(Context, isysroot, OutputFile);
David Blaikie4e4d0842012-03-11 07:00:24 +00003340 WriteLanguageOptions(Context.getLangOpts());
Douglas Gregor832d6202011-07-22 16:35:34 +00003341 if (StatCalls && isysroot.empty())
Douglas Gregordd41ed52010-07-12 23:48:14 +00003342 WriteStatCache(*StatCalls);
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003343
3344 // Create a lexical update block containing all of the declarations in the
3345 // translation unit that do not come from other AST files.
3346 const TranslationUnitDecl *TU = Context.getTranslationUnitDecl();
3347 SmallVector<KindDeclIDPair, 64> NewGlobalDecls;
3348 for (DeclContext::decl_iterator I = TU->noload_decls_begin(),
3349 E = TU->noload_decls_end();
3350 I != E; ++I) {
Douglas Gregor919814d2011-09-09 23:01:35 +00003351 if (!(*I)->isFromASTFile())
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003352 NewGlobalDecls.push_back(std::make_pair((*I)->getKind(), GetDeclRef(*I)));
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003353 }
3354
3355 llvm::BitCodeAbbrev *Abv = new llvm::BitCodeAbbrev();
3356 Abv->Add(llvm::BitCodeAbbrevOp(TU_UPDATE_LEXICAL));
3357 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
3358 unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(Abv);
3359 Record.clear();
3360 Record.push_back(TU_UPDATE_LEXICAL);
3361 Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
3362 data(NewGlobalDecls));
3363
3364 // And a visible updates block for the translation unit.
3365 Abv = new llvm::BitCodeAbbrev();
3366 Abv->Add(llvm::BitCodeAbbrevOp(UPDATE_VISIBLE));
3367 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
3368 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Fixed, 32));
3369 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
3370 UpdateVisibleAbbrev = Stream.EmitAbbrev(Abv);
3371 WriteDeclContextVisibleUpdate(TU);
3372
3373 // If the translation unit has an anonymous namespace, and we don't already
3374 // have an update block for it, write it as an update block.
3375 if (NamespaceDecl *NS = TU->getAnonymousNamespace()) {
3376 ASTWriter::UpdateRecord &Record = DeclUpdates[TU];
3377 if (Record.empty()) {
3378 Record.push_back(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE);
Douglas Gregor61c5e342011-09-17 00:05:03 +00003379 Record.push_back(reinterpret_cast<uint64_t>(NS));
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003380 }
3381 }
3382
Argyrios Kyrtzidis67bc4ba2011-11-14 04:52:24 +00003383 // Resolve any declaration pointers within the declaration updates block.
Douglas Gregor61c5e342011-09-17 00:05:03 +00003384 ResolveDeclUpdatesBlocks();
Douglas Gregor61c5e342011-09-17 00:05:03 +00003385
Douglas Gregora119da02011-08-02 16:26:37 +00003386 // Form the record of special types.
3387 RecordData SpecialTypes;
3388 AddTypeRef(Context.getBuiltinVaListType(), SpecialTypes);
Douglas Gregora119da02011-08-02 16:26:37 +00003389 AddTypeRef(Context.getRawCFConstantStringType(), SpecialTypes);
Douglas Gregora119da02011-08-02 16:26:37 +00003390 AddTypeRef(Context.getFILEType(), SpecialTypes);
3391 AddTypeRef(Context.getjmp_bufType(), SpecialTypes);
3392 AddTypeRef(Context.getsigjmp_bufType(), SpecialTypes);
3393 AddTypeRef(Context.ObjCIdRedefinitionType, SpecialTypes);
3394 AddTypeRef(Context.ObjCClassRedefinitionType, SpecialTypes);
Douglas Gregora119da02011-08-02 16:26:37 +00003395 AddTypeRef(Context.ObjCSelRedefinitionType, SpecialTypes);
Rafael Espindolae2d4f4e2011-11-13 21:51:09 +00003396 AddTypeRef(Context.getucontext_tType(), SpecialTypes);
Douglas Gregor185dbd72011-12-01 02:07:58 +00003397
Douglas Gregor366809a2009-04-26 03:49:13 +00003398 // Keep writing types and declarations until all types and
3399 // declarations have been written.
Douglas Gregora72d8c42011-06-03 02:27:19 +00003400 Stream.EnterSubblock(DECLTYPES_BLOCK_ID, NUM_ALLOWED_ABBREVS_SIZE);
Douglas Gregor61d60ee2009-10-17 00:13:19 +00003401 WriteDeclsBlockAbbrevs();
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003402 for (DeclsToRewriteTy::iterator I = DeclsToRewrite.begin(),
3403 E = DeclsToRewrite.end();
3404 I != E; ++I)
3405 DeclTypesToEmit.push(const_cast<Decl*>(*I));
Douglas Gregor61d60ee2009-10-17 00:13:19 +00003406 while (!DeclTypesToEmit.empty()) {
3407 DeclOrType DOT = DeclTypesToEmit.front();
3408 DeclTypesToEmit.pop();
3409 if (DOT.isType())
3410 WriteType(DOT.getType());
3411 else
3412 WriteDecl(Context, DOT.getDecl());
3413 }
3414 Stream.ExitBlock();
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00003415
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003416 WriteFileDeclIDsMap();
3417 WriteSourceManagerBlock(Context.getSourceManager(), PP, isysroot);
3418
3419 if (Chain) {
3420 // Write the mapping information describing our module dependencies and how
3421 // each of those modules were mapped into our own offset/ID space, so that
3422 // the reader can build the appropriate mapping to its own offset/ID space.
3423 // The map consists solely of a blob with the following format:
3424 // *(module-name-len:i16 module-name:len*i8
3425 // source-location-offset:i32
3426 // identifier-id:i32
3427 // preprocessed-entity-id:i32
3428 // macro-definition-id:i32
Douglas Gregor26ced122011-12-01 00:59:36 +00003429 // submodule-id:i32
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003430 // selector-id:i32
3431 // declaration-id:i32
3432 // c++-base-specifiers-id:i32
3433 // type-id:i32)
3434 //
3435 llvm::BitCodeAbbrev *Abbrev = new BitCodeAbbrev();
3436 Abbrev->Add(BitCodeAbbrevOp(MODULE_OFFSET_MAP));
3437 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3438 unsigned ModuleOffsetMapAbbrev = Stream.EmitAbbrev(Abbrev);
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00003439 SmallString<2048> Buffer;
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003440 {
3441 llvm::raw_svector_ostream Out(Buffer);
3442 for (ModuleManager::ModuleConstIterator M = Chain->ModuleMgr.begin(),
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00003443 MEnd = Chain->ModuleMgr.end();
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003444 M != MEnd; ++M) {
3445 StringRef FileName = (*M)->FileName;
3446 io::Emit16(Out, FileName.size());
3447 Out.write(FileName.data(), FileName.size());
3448 io::Emit32(Out, (*M)->SLocEntryBaseOffset);
3449 io::Emit32(Out, (*M)->BaseIdentifierID);
3450 io::Emit32(Out, (*M)->BasePreprocessedEntityID);
Douglas Gregor26ced122011-12-01 00:59:36 +00003451 io::Emit32(Out, (*M)->BaseSubmoduleID);
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003452 io::Emit32(Out, (*M)->BaseSelectorID);
3453 io::Emit32(Out, (*M)->BaseDeclID);
3454 io::Emit32(Out, (*M)->BaseTypeIndex);
3455 }
3456 }
3457 Record.clear();
3458 Record.push_back(MODULE_OFFSET_MAP);
3459 Stream.EmitRecordWithBlob(ModuleOffsetMapAbbrev, Record,
3460 Buffer.data(), Buffer.size());
3461 }
Douglas Gregora8cc6ce2011-11-30 04:39:39 +00003462 WritePreprocessor(PP, WritingModule != 0);
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00003463 WriteHeaderSearch(PP.getHeaderSearchInfo(), isysroot);
Sebastian Redl059612d2010-08-03 21:58:15 +00003464 WriteSelectors(SemaRef);
Fariborz Jahanian32019832010-07-23 19:11:11 +00003465 WriteReferencedSelectorsPool(SemaRef);
Douglas Gregora8cc6ce2011-11-30 04:39:39 +00003466 WriteIdentifierTable(PP, SemaRef.IdResolver, WritingModule != 0);
Peter Collingbourne84bccea2011-02-15 19:46:30 +00003467 WriteFPPragmaOptions(SemaRef.getFPOptions());
3468 WriteOpenCLExtensions(SemaRef);
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00003469
Sebastian Redl1476ed42010-07-16 16:36:56 +00003470 WriteTypeDeclOffsets();
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00003471 WritePragmaDiagnosticMappings(Context.getDiagnostics());
Douglas Gregorad1de002009-04-18 05:55:16 +00003472
Anders Carlssonc8505782011-03-06 18:41:18 +00003473 WriteCXXBaseSpecifiersOffsets();
Douglas Gregor7c789c12010-10-29 22:39:52 +00003474
Douglas Gregore209e502011-12-06 01:10:29 +00003475 // If we're emitting a module, write out the submodule information.
3476 if (WritingModule)
3477 WriteSubmodules(WritingModule);
3478
Douglas Gregora119da02011-08-02 16:26:37 +00003479 Stream.EmitRecord(SPECIAL_TYPES, SpecialTypes);
3480
Douglas Gregor4c0e86b2009-04-22 22:02:47 +00003481 // Write the record containing external, unnamed definitions.
Douglas Gregorfdd01722009-04-14 00:24:19 +00003482 if (!ExternalDefinitions.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003483 Stream.EmitRecord(EXTERNAL_DEFINITIONS, ExternalDefinitions);
Douglas Gregor4c0e86b2009-04-22 22:02:47 +00003484
3485 // Write the record containing tentative definitions.
3486 if (!TentativeDefinitions.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003487 Stream.EmitRecord(TENTATIVE_DEFINITIONS, TentativeDefinitions);
Douglas Gregor14c22f22009-04-22 22:18:58 +00003488
Argyrios Kyrtzidis49b96d12010-08-13 18:42:17 +00003489 // Write the record containing unused file scoped decls.
3490 if (!UnusedFileScopedDecls.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003491 Stream.EmitRecord(UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls);
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00003492
Argyrios Kyrtzidis72b90572010-08-05 09:48:08 +00003493 // Write the record containing weak undeclared identifiers.
3494 if (!WeakUndeclaredIdentifiers.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003495 Stream.EmitRecord(WEAK_UNDECLARED_IDENTIFIERS,
Argyrios Kyrtzidis72b90572010-08-05 09:48:08 +00003496 WeakUndeclaredIdentifiers);
3497
Douglas Gregor14c22f22009-04-22 22:18:58 +00003498 // Write the record containing locally-scoped external definitions.
3499 if (!LocallyScopedExternalDecls.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003500 Stream.EmitRecord(LOCALLY_SCOPED_EXTERNAL_DECLS,
Douglas Gregor14c22f22009-04-22 22:18:58 +00003501 LocallyScopedExternalDecls);
Douglas Gregorb81c1702009-04-27 20:06:05 +00003502
3503 // Write the record containing ext_vector type names.
3504 if (!ExtVectorDecls.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003505 Stream.EmitRecord(EXT_VECTOR_DECLS, ExtVectorDecls);
Mike Stump1eb44332009-09-09 15:08:12 +00003506
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003507 // Write the record containing VTable uses information.
3508 if (!VTableUses.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003509 Stream.EmitRecord(VTABLE_USES, VTableUses);
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003510
3511 // Write the record containing dynamic classes declarations.
3512 if (!DynamicClasses.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003513 Stream.EmitRecord(DYNAMIC_CLASSES, DynamicClasses);
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00003514
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00003515 // Write the record containing pending implicit instantiations.
Chandler Carruth62c78d52010-08-25 08:44:16 +00003516 if (!PendingInstantiations.empty())
3517 Stream.EmitRecord(PENDING_IMPLICIT_INSTANTIATIONS, PendingInstantiations);
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00003518
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00003519 // Write the record containing declaration references of Sema.
3520 if (!SemaDeclRefs.empty())
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003521 Stream.EmitRecord(SEMA_DECL_REFS, SemaDeclRefs);
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00003522
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00003523 // Write the record containing CUDA-specific declaration references.
3524 if (!CUDASpecialDeclRefs.empty())
3525 Stream.EmitRecord(CUDA_SPECIAL_DECL_REFS, CUDASpecialDeclRefs);
Sean Huntebcbe1d2011-05-04 23:29:54 +00003526
3527 // Write the delegating constructors.
3528 if (!DelegatingCtorDecls.empty())
3529 Stream.EmitRecord(DELEGATING_CTORS, DelegatingCtorDecls);
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00003530
Douglas Gregord8bba9c2011-06-28 16:20:02 +00003531 // Write the known namespaces.
3532 if (!KnownNamespaces.empty())
3533 Stream.EmitRecord(KNOWN_NAMESPACES, KnownNamespaces);
3534
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003535 // Write the visible updates to DeclContexts.
3536 for (llvm::SmallPtrSet<const DeclContext *, 16>::iterator
3537 I = UpdatedDeclContexts.begin(),
3538 E = UpdatedDeclContexts.end();
3539 I != E; ++I)
3540 WriteDeclContextVisibleUpdate(*I);
3541
Douglas Gregorc5e0f9b2011-12-03 01:15:29 +00003542 if (!WritingModule) {
3543 // Write the submodules that were imported, if any.
3544 RecordData ImportedModules;
3545 for (ASTContext::import_iterator I = Context.local_import_begin(),
3546 IEnd = Context.local_import_end();
3547 I != IEnd; ++I) {
3548 assert(SubmoduleIDs.find(I->getImportedModule()) != SubmoduleIDs.end());
3549 ImportedModules.push_back(SubmoduleIDs[I->getImportedModule()]);
3550 }
3551 if (!ImportedModules.empty()) {
3552 // Sort module IDs.
3553 llvm::array_pod_sort(ImportedModules.begin(), ImportedModules.end());
3554
3555 // Unique module IDs.
3556 ImportedModules.erase(std::unique(ImportedModules.begin(),
3557 ImportedModules.end()),
3558 ImportedModules.end());
3559
3560 Stream.EmitRecord(IMPORTED_MODULES, ImportedModules);
3561 }
Douglas Gregorf6137e42011-12-03 00:59:55 +00003562 }
3563
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00003564 WriteDeclUpdatesBlocks();
Douglas Gregorb7c324f2011-08-12 01:39:19 +00003565 WriteDeclReplacementsBlock();
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00003566 WriteMergedDecls();
Douglas Gregor2171bf12012-01-15 16:58:34 +00003567 WriteRedeclarations();
Douglas Gregorcff9f262012-01-27 01:47:08 +00003568 WriteObjCCategories();
Douglas Gregora1be2782011-12-17 23:38:30 +00003569
Douglas Gregor3e1af842009-04-17 22:13:46 +00003570 // Some simple statistics
Douglas Gregorad1de002009-04-18 05:55:16 +00003571 Record.clear();
Douglas Gregor3e1af842009-04-17 22:13:46 +00003572 Record.push_back(NumStatements);
Douglas Gregor37e26842009-04-21 23:56:24 +00003573 Record.push_back(NumMacros);
Douglas Gregor25123082009-04-22 22:34:57 +00003574 Record.push_back(NumLexicalDeclContexts);
3575 Record.push_back(NumVisibleDeclContexts);
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003576 Stream.EmitRecord(STATISTICS, Record);
Douglas Gregorc9490c02009-04-16 22:23:12 +00003577 Stream.ExitBlock();
Douglas Gregor2cf26342009-04-09 22:27:44 +00003578}
3579
Douglas Gregor61c5e342011-09-17 00:05:03 +00003580/// \brief Go through the declaration update blocks and resolve declaration
3581/// pointers into declaration IDs.
3582void ASTWriter::ResolveDeclUpdatesBlocks() {
3583 for (DeclUpdateMap::iterator
3584 I = DeclUpdates.begin(), E = DeclUpdates.end(); I != E; ++I) {
3585 const Decl *D = I->first;
3586 UpdateRecord &URec = I->second;
3587
Argyrios Kyrtzidisad834d52011-11-12 21:07:46 +00003588 if (isRewritten(D))
Douglas Gregor61c5e342011-09-17 00:05:03 +00003589 continue; // The decl will be written completely
3590
3591 unsigned Idx = 0, N = URec.size();
3592 while (Idx < N) {
3593 switch ((DeclUpdateKind)URec[Idx++]) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00003594 case UPD_CXX_ADDED_IMPLICIT_MEMBER:
3595 case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
3596 case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE:
3597 URec[Idx] = GetDeclRef(reinterpret_cast<Decl *>(URec[Idx]));
3598 ++Idx;
3599 break;
3600
3601 case UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER:
3602 ++Idx;
3603 break;
3604 }
3605 }
3606 }
3607}
3608
Argyrios Kyrtzidisaacdd022010-10-24 17:26:43 +00003609void ASTWriter::WriteDeclUpdatesBlocks() {
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00003610 if (DeclUpdates.empty())
3611 return;
3612
3613 RecordData OffsetsRecord;
Douglas Gregora72d8c42011-06-03 02:27:19 +00003614 Stream.EnterSubblock(DECL_UPDATES_BLOCK_ID, NUM_ALLOWED_ABBREVS_SIZE);
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00003615 for (DeclUpdateMap::iterator
3616 I = DeclUpdates.begin(), E = DeclUpdates.end(); I != E; ++I) {
3617 const Decl *D = I->first;
3618 UpdateRecord &URec = I->second;
3619
Argyrios Kyrtzidisad834d52011-11-12 21:07:46 +00003620 if (isRewritten(D))
Argyrios Kyrtzidisba901b52010-10-24 17:26:46 +00003621 continue; // The decl will be written completely,no need to store updates.
3622
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00003623 uint64_t Offset = Stream.GetCurrentBitNo();
3624 Stream.EmitRecord(DECL_UPDATES, URec);
3625
3626 OffsetsRecord.push_back(GetDeclRef(D));
3627 OffsetsRecord.push_back(Offset);
3628 }
3629 Stream.ExitBlock();
3630 Stream.EmitRecord(DECL_UPDATE_OFFSETS, OffsetsRecord);
3631}
3632
Argyrios Kyrtzidisaacdd022010-10-24 17:26:43 +00003633void ASTWriter::WriteDeclReplacementsBlock() {
Sebastian Redl0b17c612010-08-13 00:28:03 +00003634 if (ReplacedDecls.empty())
3635 return;
3636
3637 RecordData Record;
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00003638 for (SmallVector<ReplacedDeclInfo, 16>::iterator
Sebastian Redl0b17c612010-08-13 00:28:03 +00003639 I = ReplacedDecls.begin(), E = ReplacedDecls.end(); I != E; ++I) {
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00003640 Record.push_back(I->ID);
3641 Record.push_back(I->Offset);
3642 Record.push_back(I->Loc);
Sebastian Redl0b17c612010-08-13 00:28:03 +00003643 }
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003644 Stream.EmitRecord(DECL_REPLACEMENTS, Record);
Sebastian Redl0b17c612010-08-13 00:28:03 +00003645}
3646
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003647void ASTWriter::AddSourceLocation(SourceLocation Loc, RecordDataImpl &Record) {
Douglas Gregor2cf26342009-04-09 22:27:44 +00003648 Record.push_back(Loc.getRawEncoding());
3649}
3650
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003651void ASTWriter::AddSourceRange(SourceRange Range, RecordDataImpl &Record) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00003652 AddSourceLocation(Range.getBegin(), Record);
3653 AddSourceLocation(Range.getEnd(), Record);
3654}
3655
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003656void ASTWriter::AddAPInt(const llvm::APInt &Value, RecordDataImpl &Record) {
Douglas Gregor2cf26342009-04-09 22:27:44 +00003657 Record.push_back(Value.getBitWidth());
Benjamin Kramer4ea884b2010-09-06 23:43:28 +00003658 const uint64_t *Words = Value.getRawData();
3659 Record.append(Words, Words + Value.getNumWords());
Douglas Gregor2cf26342009-04-09 22:27:44 +00003660}
3661
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003662void ASTWriter::AddAPSInt(const llvm::APSInt &Value, RecordDataImpl &Record) {
Douglas Gregor0a2b45e2009-04-13 18:14:40 +00003663 Record.push_back(Value.isUnsigned());
3664 AddAPInt(Value, Record);
3665}
3666
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003667void ASTWriter::AddAPFloat(const llvm::APFloat &Value, RecordDataImpl &Record) {
Douglas Gregor17fc2232009-04-14 21:55:33 +00003668 AddAPInt(Value.bitcastToAPInt(), Record);
3669}
3670
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003671void ASTWriter::AddIdentifierRef(const IdentifierInfo *II, RecordDataImpl &Record) {
Douglas Gregor2deaea32009-04-22 18:49:13 +00003672 Record.push_back(getIdentifierRef(II));
3673}
3674
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003675IdentID ASTWriter::getIdentifierRef(const IdentifierInfo *II) {
Douglas Gregor2deaea32009-04-22 18:49:13 +00003676 if (II == 0)
3677 return 0;
Douglas Gregorafaf3082009-04-11 00:14:32 +00003678
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003679 IdentID &ID = IdentifierIDs[II];
Douglas Gregorafaf3082009-04-11 00:14:32 +00003680 if (ID == 0)
Sebastian Redlf2f0f032010-07-23 23:49:55 +00003681 ID = NextIdentID++;
Douglas Gregor2deaea32009-04-22 18:49:13 +00003682 return ID;
Douglas Gregor2cf26342009-04-09 22:27:44 +00003683}
3684
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003685void ASTWriter::AddSelectorRef(const Selector SelRef, RecordDataImpl &Record) {
Sebastian Redl5d050072010-08-04 17:20:04 +00003686 Record.push_back(getSelectorRef(SelRef));
3687}
3688
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003689SelectorID ASTWriter::getSelectorRef(Selector Sel) {
Sebastian Redl5d050072010-08-04 17:20:04 +00003690 if (Sel.getAsOpaquePtr() == 0) {
3691 return 0;
Steve Naroff90cd1bb2009-04-23 10:39:46 +00003692 }
3693
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003694 SelectorID &SID = SelectorIDs[Sel];
Sebastian Redle58aa892010-08-04 18:21:41 +00003695 if (SID == 0 && Chain) {
3696 // This might trigger a ReadSelector callback, which will set the ID for
3697 // this selector.
3698 Chain->LoadSelector(Sel);
3699 }
Steve Naroff90cd1bb2009-04-23 10:39:46 +00003700 if (SID == 0) {
Sebastian Redle58aa892010-08-04 18:21:41 +00003701 SID = NextSelectorID++;
Steve Naroff90cd1bb2009-04-23 10:39:46 +00003702 }
Sebastian Redl5d050072010-08-04 17:20:04 +00003703 return SID;
Steve Naroff90cd1bb2009-04-23 10:39:46 +00003704}
3705
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003706void ASTWriter::AddCXXTemporary(const CXXTemporary *Temp, RecordDataImpl &Record) {
Chris Lattnerd2598362010-05-10 00:25:06 +00003707 AddDeclRef(Temp->getDestructor(), Record);
3708}
3709
Douglas Gregor7c789c12010-10-29 22:39:52 +00003710void ASTWriter::AddCXXBaseSpecifiersRef(CXXBaseSpecifier const *Bases,
3711 CXXBaseSpecifier const *BasesEnd,
3712 RecordDataImpl &Record) {
3713 assert(Bases != BasesEnd && "Empty base-specifier sets are not recorded");
3714 CXXBaseSpecifiersToWrite.push_back(
3715 QueuedCXXBaseSpecifiers(NextCXXBaseSpecifiersID,
3716 Bases, BasesEnd));
3717 Record.push_back(NextCXXBaseSpecifiersID++);
3718}
3719
Sebastian Redla4232eb2010-08-18 23:56:21 +00003720void ASTWriter::AddTemplateArgumentLocInfo(TemplateArgument::ArgKind Kind,
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003721 const TemplateArgumentLocInfo &Arg,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003722 RecordDataImpl &Record) {
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003723 switch (Kind) {
John McCall833ca992009-10-29 08:12:44 +00003724 case TemplateArgument::Expression:
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003725 AddStmt(Arg.getAsExpr());
John McCall833ca992009-10-29 08:12:44 +00003726 break;
3727 case TemplateArgument::Type:
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003728 AddTypeSourceInfo(Arg.getAsTypeSourceInfo(), Record);
John McCall833ca992009-10-29 08:12:44 +00003729 break;
Douglas Gregor788cd062009-11-11 01:00:40 +00003730 case TemplateArgument::Template:
Douglas Gregorb6744ef2011-03-02 17:09:35 +00003731 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc(), Record);
Argyrios Kyrtzidis17cfded2010-06-28 09:31:42 +00003732 AddSourceLocation(Arg.getTemplateNameLoc(), Record);
Douglas Gregora7fc9012011-01-05 18:58:31 +00003733 break;
3734 case TemplateArgument::TemplateExpansion:
Douglas Gregorb6744ef2011-03-02 17:09:35 +00003735 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc(), Record);
Douglas Gregora7fc9012011-01-05 18:58:31 +00003736 AddSourceLocation(Arg.getTemplateNameLoc(), Record);
Douglas Gregorba68eca2011-01-05 17:40:24 +00003737 AddSourceLocation(Arg.getTemplateEllipsisLoc(), Record);
Douglas Gregor788cd062009-11-11 01:00:40 +00003738 break;
John McCall833ca992009-10-29 08:12:44 +00003739 case TemplateArgument::Null:
3740 case TemplateArgument::Integral:
3741 case TemplateArgument::Declaration:
3742 case TemplateArgument::Pack:
3743 break;
3744 }
3745}
3746
Sebastian Redla4232eb2010-08-18 23:56:21 +00003747void ASTWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003748 RecordDataImpl &Record) {
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003749 AddTemplateArgument(Arg.getArgument(), Record);
Argyrios Kyrtzidis17cfded2010-06-28 09:31:42 +00003750
3751 if (Arg.getArgument().getKind() == TemplateArgument::Expression) {
3752 bool InfoHasSameExpr
3753 = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr();
3754 Record.push_back(InfoHasSameExpr);
3755 if (InfoHasSameExpr)
3756 return; // Avoid storing the same expr twice.
3757 }
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00003758 AddTemplateArgumentLocInfo(Arg.getArgument().getKind(), Arg.getLocInfo(),
3759 Record);
3760}
3761
Douglas Gregordc355712011-02-25 00:36:19 +00003762void ASTWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo,
3763 RecordDataImpl &Record) {
John McCalla93c9342009-12-07 02:54:59 +00003764 if (TInfo == 0) {
John McCalla1ee0c52009-10-16 21:56:05 +00003765 AddTypeRef(QualType(), Record);
3766 return;
3767 }
3768
Douglas Gregordc355712011-02-25 00:36:19 +00003769 AddTypeLoc(TInfo->getTypeLoc(), Record);
3770}
3771
3772void ASTWriter::AddTypeLoc(TypeLoc TL, RecordDataImpl &Record) {
3773 AddTypeRef(TL.getType(), Record);
3774
John McCalla1ee0c52009-10-16 21:56:05 +00003775 TypeLocWriter TLW(*this, Record);
Douglas Gregordc355712011-02-25 00:36:19 +00003776 for (; !TL.isNull(); TL = TL.getNextTypeLoc())
Kovarththanan Rajaratnam11a18f12010-03-14 07:06:50 +00003777 TLW.Visit(TL);
John McCalla1ee0c52009-10-16 21:56:05 +00003778}
3779
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003780void ASTWriter::AddTypeRef(QualType T, RecordDataImpl &Record) {
Argyrios Kyrtzidis7fb35182010-08-20 16:04:14 +00003781 Record.push_back(GetOrCreateTypeID(T));
3782}
3783
Douglas Gregor3b8043b2011-08-09 15:13:55 +00003784TypeID ASTWriter::GetOrCreateTypeID( QualType T) {
3785 return MakeTypeID(*Context, T,
Argyrios Kyrtzidiseb3f04e2010-08-20 16:04:20 +00003786 std::bind1st(std::mem_fun(&ASTWriter::GetOrCreateTypeIdx), this));
3787}
Douglas Gregor2cf26342009-04-09 22:27:44 +00003788
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00003789TypeID ASTWriter::getTypeID(QualType T) const {
Douglas Gregor3b8043b2011-08-09 15:13:55 +00003790 return MakeTypeID(*Context, T,
Argyrios Kyrtzidiseb3f04e2010-08-20 16:04:20 +00003791 std::bind1st(std::mem_fun(&ASTWriter::getTypeIdx), this));
Argyrios Kyrtzidis26fca902010-08-20 16:04:09 +00003792}
3793
3794TypeIdx ASTWriter::GetOrCreateTypeIdx(QualType T) {
3795 if (T.isNull())
3796 return TypeIdx();
3797 assert(!T.getLocalFastQualifiers());
3798
Argyrios Kyrtzidis01b81c42010-08-20 16:04:04 +00003799 TypeIdx &Idx = TypeIdxs[T];
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00003800 if (Idx.getIndex() == 0) {
Douglas Gregor366809a2009-04-26 03:49:13 +00003801 // We haven't seen this type before. Assign it a new ID and put it
John McCall0953e762009-09-24 19:53:00 +00003802 // into the queue of types to emit.
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00003803 Idx = TypeIdx(NextTypeID++);
Douglas Gregor61d60ee2009-10-17 00:13:19 +00003804 DeclTypesToEmit.push(T);
Douglas Gregor366809a2009-04-26 03:49:13 +00003805 }
Argyrios Kyrtzidis26fca902010-08-20 16:04:09 +00003806 return Idx;
3807}
Douglas Gregor2cf26342009-04-09 22:27:44 +00003808
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00003809TypeIdx ASTWriter::getTypeIdx(QualType T) const {
Argyrios Kyrtzidis26fca902010-08-20 16:04:09 +00003810 if (T.isNull())
3811 return TypeIdx();
3812 assert(!T.getLocalFastQualifiers());
3813
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +00003814 TypeIdxMap::const_iterator I = TypeIdxs.find(T);
3815 assert(I != TypeIdxs.end() && "Type not emitted!");
3816 return I->second;
Douglas Gregor2cf26342009-04-09 22:27:44 +00003817}
3818
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00003819void ASTWriter::AddDeclRef(const Decl *D, RecordDataImpl &Record) {
Sebastian Redl681d7232010-07-27 00:17:23 +00003820 Record.push_back(GetDeclRef(D));
3821}
3822
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003823DeclID ASTWriter::GetDeclRef(const Decl *D) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00003824 assert(WritingAST && "Cannot request a declaration ID before AST writing");
3825
Douglas Gregor2cf26342009-04-09 22:27:44 +00003826 if (D == 0) {
Sebastian Redl681d7232010-07-27 00:17:23 +00003827 return 0;
Douglas Gregor2cf26342009-04-09 22:27:44 +00003828 }
Douglas Gregor1c7946a2012-01-05 22:33:30 +00003829
3830 // If D comes from an AST file, its declaration ID is already known and
3831 // fixed.
3832 if (D->isFromASTFile())
3833 return D->getGlobalID();
3834
Douglas Gregor97475832010-10-05 18:37:06 +00003835 assert(!(reinterpret_cast<uintptr_t>(D) & 0x01) && "Invalid decl pointer");
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003836 DeclID &ID = DeclIDs[D];
Mike Stump1eb44332009-09-09 15:08:12 +00003837 if (ID == 0) {
Douglas Gregor2cf26342009-04-09 22:27:44 +00003838 // We haven't seen this declaration before. Give it a new ID and
3839 // enqueue it in the list of declarations to emit.
Sebastian Redlf2f0f032010-07-23 23:49:55 +00003840 ID = NextDeclID++;
Douglas Gregor61d60ee2009-10-17 00:13:19 +00003841 DeclTypesToEmit.push(const_cast<Decl *>(D));
Douglas Gregor2cf26342009-04-09 22:27:44 +00003842 }
3843
Sebastian Redl681d7232010-07-27 00:17:23 +00003844 return ID;
Douglas Gregor2cf26342009-04-09 22:27:44 +00003845}
3846
Sebastian Redl8538e8d2010-08-18 23:57:32 +00003847DeclID ASTWriter::getDeclID(const Decl *D) {
Douglas Gregor3251ceb2009-04-20 20:36:09 +00003848 if (D == 0)
3849 return 0;
3850
Douglas Gregor1c7946a2012-01-05 22:33:30 +00003851 // If D comes from an AST file, its declaration ID is already known and
3852 // fixed.
3853 if (D->isFromASTFile())
3854 return D->getGlobalID();
3855
Douglas Gregor3251ceb2009-04-20 20:36:09 +00003856 assert(DeclIDs.find(D) != DeclIDs.end() && "Declaration not emitted!");
3857 return DeclIDs[D];
3858}
3859
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003860static inline bool compLocDecl(std::pair<unsigned, serialization::DeclID> L,
3861 std::pair<unsigned, serialization::DeclID> R) {
3862 return L.first < R.first;
3863}
3864
Argyrios Kyrtzidis19645d22011-10-28 23:57:43 +00003865void ASTWriter::associateDeclWithFile(const Decl *D, DeclID ID) {
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003866 assert(ID);
Argyrios Kyrtzidis19645d22011-10-28 23:57:43 +00003867 assert(D);
3868
3869 SourceLocation Loc = D->getLocation();
3870 if (Loc.isInvalid())
3871 return;
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003872
3873 // We only keep track of the file-level declarations of each file.
3874 if (!D->getLexicalDeclContext()->isFileContext())
3875 return;
Argyrios Kyrtzidis69015c22012-02-24 19:45:46 +00003876 // FIXME: ParmVarDecls that are part of a function type of a parameter of
3877 // a function/objc method, should not have TU as lexical context.
Argyrios Kyrtzidis8cceefa2012-02-24 01:12:38 +00003878 if (isa<ParmVarDecl>(D))
3879 return;
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003880
3881 SourceManager &SM = Context->getSourceManager();
Argyrios Kyrtzidis19645d22011-10-28 23:57:43 +00003882 SourceLocation FileLoc = SM.getFileLoc(Loc);
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003883 assert(SM.isLocalSourceLocation(FileLoc));
Argyrios Kyrtzidisfab8d5b2011-10-28 23:57:47 +00003884 FileID FID;
3885 unsigned Offset;
3886 llvm::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc);
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003887 if (FID.isInvalid())
3888 return;
3889 const SrcMgr::SLocEntry *Entry = &SM.getSLocEntry(FID);
3890 assert(Entry->isFile());
3891
3892 DeclIDInFileInfo *&Info = FileDeclIDs[Entry];
3893 if (!Info)
3894 Info = new DeclIDInFileInfo();
3895
Argyrios Kyrtzidisfab8d5b2011-10-28 23:57:47 +00003896 std::pair<unsigned, serialization::DeclID> LocDecl(Offset, ID);
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003897 LocDeclIDsTy &Decls = Info->DeclIDs;
3898
Argyrios Kyrtzidisfab8d5b2011-10-28 23:57:47 +00003899 if (Decls.empty() || Decls.back().first <= Offset) {
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00003900 Decls.push_back(LocDecl);
3901 return;
3902 }
3903
3904 LocDeclIDsTy::iterator
3905 I = std::upper_bound(Decls.begin(), Decls.end(), LocDecl, compLocDecl);
3906
3907 Decls.insert(I, LocDecl);
3908}
3909
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003910void ASTWriter::AddDeclarationName(DeclarationName Name, RecordDataImpl &Record) {
Chris Lattnerea5ce472009-04-27 07:35:58 +00003911 // FIXME: Emit a stable enum for NameKind. 0 = Identifier etc.
Douglas Gregor2cf26342009-04-09 22:27:44 +00003912 Record.push_back(Name.getNameKind());
3913 switch (Name.getNameKind()) {
3914 case DeclarationName::Identifier:
3915 AddIdentifierRef(Name.getAsIdentifierInfo(), Record);
3916 break;
3917
3918 case DeclarationName::ObjCZeroArgSelector:
3919 case DeclarationName::ObjCOneArgSelector:
3920 case DeclarationName::ObjCMultiArgSelector:
Steve Naroff90cd1bb2009-04-23 10:39:46 +00003921 AddSelectorRef(Name.getObjCSelector(), Record);
Douglas Gregor2cf26342009-04-09 22:27:44 +00003922 break;
3923
3924 case DeclarationName::CXXConstructorName:
3925 case DeclarationName::CXXDestructorName:
3926 case DeclarationName::CXXConversionFunctionName:
3927 AddTypeRef(Name.getCXXNameType(), Record);
3928 break;
3929
3930 case DeclarationName::CXXOperatorName:
3931 Record.push_back(Name.getCXXOverloadedOperator());
3932 break;
3933
Sean Hunt3e518bd2009-11-29 07:34:05 +00003934 case DeclarationName::CXXLiteralOperatorName:
3935 AddIdentifierRef(Name.getCXXLiteralIdentifier(), Record);
3936 break;
3937
Douglas Gregor2cf26342009-04-09 22:27:44 +00003938 case DeclarationName::CXXUsingDirective:
3939 // No extra data to emit
3940 break;
3941 }
3942}
Chris Lattner6ad9ac02010-05-07 21:43:38 +00003943
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00003944void ASTWriter::AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003945 DeclarationName Name, RecordDataImpl &Record) {
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00003946 switch (Name.getNameKind()) {
3947 case DeclarationName::CXXConstructorName:
3948 case DeclarationName::CXXDestructorName:
3949 case DeclarationName::CXXConversionFunctionName:
3950 AddTypeSourceInfo(DNLoc.NamedType.TInfo, Record);
3951 break;
3952
3953 case DeclarationName::CXXOperatorName:
3954 AddSourceLocation(
3955 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.BeginOpNameLoc),
3956 Record);
3957 AddSourceLocation(
3958 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc),
3959 Record);
3960 break;
3961
3962 case DeclarationName::CXXLiteralOperatorName:
3963 AddSourceLocation(
3964 SourceLocation::getFromRawEncoding(DNLoc.CXXLiteralOperatorName.OpNameLoc),
3965 Record);
3966 break;
3967
3968 case DeclarationName::Identifier:
3969 case DeclarationName::ObjCZeroArgSelector:
3970 case DeclarationName::ObjCOneArgSelector:
3971 case DeclarationName::ObjCMultiArgSelector:
3972 case DeclarationName::CXXUsingDirective:
3973 break;
3974 }
3975}
3976
3977void ASTWriter::AddDeclarationNameInfo(const DeclarationNameInfo &NameInfo,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003978 RecordDataImpl &Record) {
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00003979 AddDeclarationName(NameInfo.getName(), Record);
3980 AddSourceLocation(NameInfo.getLoc(), Record);
3981 AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName(), Record);
3982}
3983
3984void ASTWriter::AddQualifierInfo(const QualifierInfo &Info,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003985 RecordDataImpl &Record) {
Douglas Gregorc22b5ff2011-02-25 02:25:35 +00003986 AddNestedNameSpecifierLoc(Info.QualifierLoc, Record);
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00003987 Record.push_back(Info.NumTemplParamLists);
3988 for (unsigned i=0, e=Info.NumTemplParamLists; i != e; ++i)
3989 AddTemplateParameterList(Info.TemplParamLists[i], Record);
3990}
3991
Sebastian Redla4232eb2010-08-18 23:56:21 +00003992void ASTWriter::AddNestedNameSpecifier(NestedNameSpecifier *NNS,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00003993 RecordDataImpl &Record) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00003994 // Nested name specifiers usually aren't too long. I think that 8 would
Chris Lattnerfc8f0e12011-04-15 05:22:18 +00003995 // typically accommodate the vast majority.
Chris Lattner5f9e2722011-07-23 10:55:15 +00003996 SmallVector<NestedNameSpecifier *, 8> NestedNames;
Chris Lattner6ad9ac02010-05-07 21:43:38 +00003997
3998 // Push each of the NNS's onto a stack for serialization in reverse order.
3999 while (NNS) {
4000 NestedNames.push_back(NNS);
4001 NNS = NNS->getPrefix();
4002 }
4003
4004 Record.push_back(NestedNames.size());
4005 while(!NestedNames.empty()) {
4006 NNS = NestedNames.pop_back_val();
4007 NestedNameSpecifier::SpecifierKind Kind = NNS->getKind();
4008 Record.push_back(Kind);
4009 switch (Kind) {
4010 case NestedNameSpecifier::Identifier:
4011 AddIdentifierRef(NNS->getAsIdentifier(), Record);
4012 break;
4013
4014 case NestedNameSpecifier::Namespace:
4015 AddDeclRef(NNS->getAsNamespace(), Record);
4016 break;
4017
Douglas Gregor14aba762011-02-24 02:36:08 +00004018 case NestedNameSpecifier::NamespaceAlias:
4019 AddDeclRef(NNS->getAsNamespaceAlias(), Record);
4020 break;
4021
Chris Lattner6ad9ac02010-05-07 21:43:38 +00004022 case NestedNameSpecifier::TypeSpec:
4023 case NestedNameSpecifier::TypeSpecWithTemplate:
4024 AddTypeRef(QualType(NNS->getAsType(), 0), Record);
4025 Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
4026 break;
4027
4028 case NestedNameSpecifier::Global:
4029 // Don't need to write an associated value.
4030 break;
4031 }
4032 }
4033}
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004034
Douglas Gregordc355712011-02-25 00:36:19 +00004035void ASTWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS,
4036 RecordDataImpl &Record) {
4037 // Nested name specifiers usually aren't too long. I think that 8 would
Chris Lattnerfc8f0e12011-04-15 05:22:18 +00004038 // typically accommodate the vast majority.
Chris Lattner5f9e2722011-07-23 10:55:15 +00004039 SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
Douglas Gregordc355712011-02-25 00:36:19 +00004040
4041 // Push each of the nested-name-specifiers's onto a stack for
4042 // serialization in reverse order.
4043 while (NNS) {
4044 NestedNames.push_back(NNS);
4045 NNS = NNS.getPrefix();
4046 }
4047
4048 Record.push_back(NestedNames.size());
4049 while(!NestedNames.empty()) {
4050 NNS = NestedNames.pop_back_val();
4051 NestedNameSpecifier::SpecifierKind Kind
4052 = NNS.getNestedNameSpecifier()->getKind();
4053 Record.push_back(Kind);
4054 switch (Kind) {
4055 case NestedNameSpecifier::Identifier:
4056 AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier(), Record);
4057 AddSourceRange(NNS.getLocalSourceRange(), Record);
4058 break;
4059
4060 case NestedNameSpecifier::Namespace:
4061 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace(), Record);
4062 AddSourceRange(NNS.getLocalSourceRange(), Record);
4063 break;
4064
4065 case NestedNameSpecifier::NamespaceAlias:
4066 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias(), Record);
4067 AddSourceRange(NNS.getLocalSourceRange(), Record);
4068 break;
4069
4070 case NestedNameSpecifier::TypeSpec:
4071 case NestedNameSpecifier::TypeSpecWithTemplate:
4072 Record.push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
4073 AddTypeLoc(NNS.getTypeLoc(), Record);
4074 AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
4075 break;
4076
4077 case NestedNameSpecifier::Global:
4078 AddSourceLocation(NNS.getLocalSourceRange().getEnd(), Record);
4079 break;
4080 }
4081 }
4082}
4083
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004084void ASTWriter::AddTemplateName(TemplateName Name, RecordDataImpl &Record) {
Michael J. Spencer20249a12010-10-21 03:16:25 +00004085 TemplateName::NameKind Kind = Name.getKind();
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004086 Record.push_back(Kind);
4087 switch (Kind) {
4088 case TemplateName::Template:
4089 AddDeclRef(Name.getAsTemplateDecl(), Record);
4090 break;
4091
4092 case TemplateName::OverloadedTemplate: {
4093 OverloadedTemplateStorage *OvT = Name.getAsOverloadedTemplate();
4094 Record.push_back(OvT->size());
4095 for (OverloadedTemplateStorage::iterator I = OvT->begin(), E = OvT->end();
4096 I != E; ++I)
4097 AddDeclRef(*I, Record);
4098 break;
4099 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004100
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004101 case TemplateName::QualifiedTemplate: {
4102 QualifiedTemplateName *QualT = Name.getAsQualifiedTemplateName();
4103 AddNestedNameSpecifier(QualT->getQualifier(), Record);
4104 Record.push_back(QualT->hasTemplateKeyword());
4105 AddDeclRef(QualT->getTemplateDecl(), Record);
4106 break;
4107 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004108
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004109 case TemplateName::DependentTemplate: {
4110 DependentTemplateName *DepT = Name.getAsDependentTemplateName();
4111 AddNestedNameSpecifier(DepT->getQualifier(), Record);
4112 Record.push_back(DepT->isIdentifier());
4113 if (DepT->isIdentifier())
4114 AddIdentifierRef(DepT->getIdentifier(), Record);
4115 else
4116 Record.push_back(DepT->getOperator());
4117 break;
4118 }
John McCall14606042011-06-30 08:33:18 +00004119
4120 case TemplateName::SubstTemplateTemplateParm: {
4121 SubstTemplateTemplateParmStorage *subst
4122 = Name.getAsSubstTemplateTemplateParm();
4123 AddDeclRef(subst->getParameter(), Record);
4124 AddTemplateName(subst->getReplacement(), Record);
4125 break;
4126 }
Douglas Gregor1aee05d2011-01-15 06:45:20 +00004127
4128 case TemplateName::SubstTemplateTemplateParmPack: {
4129 SubstTemplateTemplateParmPackStorage *SubstPack
4130 = Name.getAsSubstTemplateTemplateParmPack();
4131 AddDeclRef(SubstPack->getParameterPack(), Record);
4132 AddTemplateArgument(SubstPack->getArgumentPack(), Record);
4133 break;
4134 }
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004135 }
4136}
4137
Michael J. Spencer20249a12010-10-21 03:16:25 +00004138void ASTWriter::AddTemplateArgument(const TemplateArgument &Arg,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004139 RecordDataImpl &Record) {
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004140 Record.push_back(Arg.getKind());
4141 switch (Arg.getKind()) {
4142 case TemplateArgument::Null:
4143 break;
4144 case TemplateArgument::Type:
4145 AddTypeRef(Arg.getAsType(), Record);
4146 break;
4147 case TemplateArgument::Declaration:
4148 AddDeclRef(Arg.getAsDecl(), Record);
4149 break;
4150 case TemplateArgument::Integral:
4151 AddAPSInt(*Arg.getAsIntegral(), Record);
4152 AddTypeRef(Arg.getIntegralType(), Record);
4153 break;
4154 case TemplateArgument::Template:
Douglas Gregor2be29f42011-01-14 23:41:42 +00004155 AddTemplateName(Arg.getAsTemplateOrTemplatePattern(), Record);
4156 break;
Douglas Gregora7fc9012011-01-05 18:58:31 +00004157 case TemplateArgument::TemplateExpansion:
4158 AddTemplateName(Arg.getAsTemplateOrTemplatePattern(), Record);
Douglas Gregor2be29f42011-01-14 23:41:42 +00004159 if (llvm::Optional<unsigned> NumExpansions = Arg.getNumTemplateExpansions())
4160 Record.push_back(*NumExpansions + 1);
4161 else
4162 Record.push_back(0);
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004163 break;
4164 case TemplateArgument::Expression:
4165 AddStmt(Arg.getAsExpr());
4166 break;
4167 case TemplateArgument::Pack:
4168 Record.push_back(Arg.pack_size());
4169 for (TemplateArgument::pack_iterator I=Arg.pack_begin(), E=Arg.pack_end();
4170 I != E; ++I)
4171 AddTemplateArgument(*I, Record);
4172 break;
4173 }
4174}
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00004175
4176void
Sebastian Redla4232eb2010-08-18 23:56:21 +00004177ASTWriter::AddTemplateParameterList(const TemplateParameterList *TemplateParams,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004178 RecordDataImpl &Record) {
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00004179 assert(TemplateParams && "No TemplateParams!");
4180 AddSourceLocation(TemplateParams->getTemplateLoc(), Record);
4181 AddSourceLocation(TemplateParams->getLAngleLoc(), Record);
4182 AddSourceLocation(TemplateParams->getRAngleLoc(), Record);
4183 Record.push_back(TemplateParams->size());
4184 for (TemplateParameterList::const_iterator
4185 P = TemplateParams->begin(), PEnd = TemplateParams->end();
4186 P != PEnd; ++P)
4187 AddDeclRef(*P, Record);
4188}
4189
4190/// \brief Emit a template argument list.
4191void
Sebastian Redla4232eb2010-08-18 23:56:21 +00004192ASTWriter::AddTemplateArgumentList(const TemplateArgumentList *TemplateArgs,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004193 RecordDataImpl &Record) {
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00004194 assert(TemplateArgs && "No TemplateArgs!");
Douglas Gregor910f8002010-11-07 23:05:16 +00004195 Record.push_back(TemplateArgs->size());
4196 for (int i=0, e = TemplateArgs->size(); i != e; ++i)
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00004197 AddTemplateArgument(TemplateArgs->get(i), Record);
4198}
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00004199
4200
4201void
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004202ASTWriter::AddUnresolvedSet(const UnresolvedSetImpl &Set, RecordDataImpl &Record) {
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00004203 Record.push_back(Set.size());
4204 for (UnresolvedSetImpl::const_iterator
4205 I = Set.begin(), E = Set.end(); I != E; ++I) {
4206 AddDeclRef(I.getDecl(), Record);
4207 Record.push_back(I.getAccess());
4208 }
4209}
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00004210
Sebastian Redla4232eb2010-08-18 23:56:21 +00004211void ASTWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base,
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004212 RecordDataImpl &Record) {
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00004213 Record.push_back(Base.isVirtual());
4214 Record.push_back(Base.isBaseOfClass());
4215 Record.push_back(Base.getAccessSpecifierAsWritten());
Sebastian Redlf677ea32011-02-05 19:23:19 +00004216 Record.push_back(Base.getInheritConstructors());
Nick Lewycky56062202010-07-26 16:56:01 +00004217 AddTypeSourceInfo(Base.getTypeSourceInfo(), Record);
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00004218 AddSourceRange(Base.getSourceRange(), Record);
Douglas Gregorf90b27a2011-01-03 22:36:02 +00004219 AddSourceLocation(Base.isPackExpansion()? Base.getEllipsisLoc()
4220 : SourceLocation(),
4221 Record);
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00004222}
Sebastian Redl30c514c2010-07-14 23:45:08 +00004223
Douglas Gregor7c789c12010-10-29 22:39:52 +00004224void ASTWriter::FlushCXXBaseSpecifiers() {
4225 RecordData Record;
4226 for (unsigned I = 0, N = CXXBaseSpecifiersToWrite.size(); I != N; ++I) {
4227 Record.clear();
4228
4229 // Record the offset of this base-specifier set.
Douglas Gregore92b8a12011-08-04 00:01:48 +00004230 unsigned Index = CXXBaseSpecifiersToWrite[I].ID - 1;
Douglas Gregor7c789c12010-10-29 22:39:52 +00004231 if (Index == CXXBaseSpecifiersOffsets.size())
4232 CXXBaseSpecifiersOffsets.push_back(Stream.GetCurrentBitNo());
4233 else {
4234 if (Index > CXXBaseSpecifiersOffsets.size())
4235 CXXBaseSpecifiersOffsets.resize(Index + 1);
4236 CXXBaseSpecifiersOffsets[Index] = Stream.GetCurrentBitNo();
4237 }
4238
4239 const CXXBaseSpecifier *B = CXXBaseSpecifiersToWrite[I].Bases,
4240 *BEnd = CXXBaseSpecifiersToWrite[I].BasesEnd;
4241 Record.push_back(BEnd - B);
4242 for (; B != BEnd; ++B)
4243 AddCXXBaseSpecifier(*B, Record);
4244 Stream.EmitRecord(serialization::DECL_CXX_BASE_SPECIFIERS, Record);
Douglas Gregoracec34b2010-10-30 04:28:16 +00004245
4246 // Flush any expressions that were written as part of the base specifiers.
4247 FlushStmts();
Douglas Gregor7c789c12010-10-29 22:39:52 +00004248 }
4249
4250 CXXBaseSpecifiersToWrite.clear();
4251}
4252
Sean Huntcbb67482011-01-08 20:30:50 +00004253void ASTWriter::AddCXXCtorInitializers(
4254 const CXXCtorInitializer * const *CtorInitializers,
4255 unsigned NumCtorInitializers,
4256 RecordDataImpl &Record) {
4257 Record.push_back(NumCtorInitializers);
4258 for (unsigned i=0; i != NumCtorInitializers; ++i) {
4259 const CXXCtorInitializer *Init = CtorInitializers[i];
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004260
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004261 if (Init->isBaseInitializer()) {
Sean Hunt156b6402011-05-04 01:19:08 +00004262 Record.push_back(CTOR_INITIALIZER_BASE);
Douglas Gregor76852c22011-11-01 01:16:03 +00004263 AddTypeSourceInfo(Init->getTypeSourceInfo(), Record);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004264 Record.push_back(Init->isBaseVirtual());
Sean Hunt156b6402011-05-04 01:19:08 +00004265 } else if (Init->isDelegatingInitializer()) {
4266 Record.push_back(CTOR_INITIALIZER_DELEGATING);
Douglas Gregor76852c22011-11-01 01:16:03 +00004267 AddTypeSourceInfo(Init->getTypeSourceInfo(), Record);
Sean Hunt156b6402011-05-04 01:19:08 +00004268 } else if (Init->isMemberInitializer()){
4269 Record.push_back(CTOR_INITIALIZER_MEMBER);
4270 AddDeclRef(Init->getMember(), Record);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004271 } else {
Sean Hunt156b6402011-05-04 01:19:08 +00004272 Record.push_back(CTOR_INITIALIZER_INDIRECT_MEMBER);
4273 AddDeclRef(Init->getIndirectMember(), Record);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004274 }
Francois Pichet00eb3f92010-12-04 09:14:42 +00004275
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004276 AddSourceLocation(Init->getMemberLocation(), Record);
4277 AddStmt(Init->getInit());
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00004278 AddSourceLocation(Init->getLParenLoc(), Record);
4279 AddSourceLocation(Init->getRParenLoc(), Record);
4280 Record.push_back(Init->isWritten());
4281 if (Init->isWritten()) {
4282 Record.push_back(Init->getSourceOrder());
4283 } else {
4284 Record.push_back(Init->getNumArrayIndices());
4285 for (unsigned i=0, e=Init->getNumArrayIndices(); i != e; ++i)
4286 AddDeclRef(Init->getArrayIndex(i), Record);
4287 }
4288 }
4289}
4290
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004291void ASTWriter::AddCXXDefinitionData(const CXXRecordDecl *D, RecordDataImpl &Record) {
4292 assert(D->DefinitionData);
4293 struct CXXRecordDecl::DefinitionData &Data = *D->DefinitionData;
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00004294 Record.push_back(Data.IsLambda);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004295 Record.push_back(Data.UserDeclaredConstructor);
4296 Record.push_back(Data.UserDeclaredCopyConstructor);
Douglas Gregor58e97972011-09-06 16:38:46 +00004297 Record.push_back(Data.UserDeclaredMoveConstructor);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004298 Record.push_back(Data.UserDeclaredCopyAssignment);
Douglas Gregor58e97972011-09-06 16:38:46 +00004299 Record.push_back(Data.UserDeclaredMoveAssignment);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004300 Record.push_back(Data.UserDeclaredDestructor);
4301 Record.push_back(Data.Aggregate);
4302 Record.push_back(Data.PlainOldData);
4303 Record.push_back(Data.Empty);
4304 Record.push_back(Data.Polymorphic);
4305 Record.push_back(Data.Abstract);
Chandler Carruthec997dc2011-04-30 10:07:30 +00004306 Record.push_back(Data.IsStandardLayout);
Chandler Carrutha8225442011-04-30 09:17:45 +00004307 Record.push_back(Data.HasNoNonEmptyBases);
4308 Record.push_back(Data.HasPrivateFields);
4309 Record.push_back(Data.HasProtectedFields);
4310 Record.push_back(Data.HasPublicFields);
Douglas Gregor2bb11012011-05-13 01:05:07 +00004311 Record.push_back(Data.HasMutableFields);
Richard Smithdfefb842012-02-25 07:33:38 +00004312 Record.push_back(Data.HasOnlyCMembers);
Richard Smithd079abf2012-05-07 01:07:30 +00004313 Record.push_back(Data.HasInClassInitializer);
Sean Hunt023df372011-05-09 18:22:59 +00004314 Record.push_back(Data.HasTrivialDefaultConstructor);
Richard Smith6b8bc072011-08-10 18:11:37 +00004315 Record.push_back(Data.HasConstexprNonCopyMoveConstructor);
Richard Smithdfefb842012-02-25 07:33:38 +00004316 Record.push_back(Data.DefaultedDefaultConstructorIsConstexpr);
4317 Record.push_back(Data.DefaultedCopyConstructorIsConstexpr);
4318 Record.push_back(Data.DefaultedMoveConstructorIsConstexpr);
4319 Record.push_back(Data.HasConstexprDefaultConstructor);
4320 Record.push_back(Data.HasConstexprCopyConstructor);
4321 Record.push_back(Data.HasConstexprMoveConstructor);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004322 Record.push_back(Data.HasTrivialCopyConstructor);
Chandler Carruth4d6e5a22011-04-23 23:10:33 +00004323 Record.push_back(Data.HasTrivialMoveConstructor);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004324 Record.push_back(Data.HasTrivialCopyAssignment);
Chandler Carruth4d6e5a22011-04-23 23:10:33 +00004325 Record.push_back(Data.HasTrivialMoveAssignment);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004326 Record.push_back(Data.HasTrivialDestructor);
Richard Smithdfefb842012-02-25 07:33:38 +00004327 Record.push_back(Data.HasIrrelevantDestructor);
Chandler Carruth9b6347c2011-04-24 02:49:34 +00004328 Record.push_back(Data.HasNonLiteralTypeFieldsOrBases);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004329 Record.push_back(Data.ComputedVisibleConversions);
Sean Huntcdee3fe2011-05-11 22:34:38 +00004330 Record.push_back(Data.UserProvidedDefaultConstructor);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004331 Record.push_back(Data.DeclaredDefaultConstructor);
4332 Record.push_back(Data.DeclaredCopyConstructor);
Douglas Gregor58e97972011-09-06 16:38:46 +00004333 Record.push_back(Data.DeclaredMoveConstructor);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004334 Record.push_back(Data.DeclaredCopyAssignment);
Douglas Gregor58e97972011-09-06 16:38:46 +00004335 Record.push_back(Data.DeclaredMoveAssignment);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004336 Record.push_back(Data.DeclaredDestructor);
Sebastian Redl14c36332011-08-31 13:59:56 +00004337 Record.push_back(Data.FailedImplicitMoveConstructor);
4338 Record.push_back(Data.FailedImplicitMoveAssignment);
Richard Smithdfefb842012-02-25 07:33:38 +00004339 // IsLambda bit is already saved.
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004340
4341 Record.push_back(Data.NumBases);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004342 if (Data.NumBases > 0)
4343 AddCXXBaseSpecifiersRef(Data.getBases(), Data.getBases() + Data.NumBases,
4344 Record);
4345
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004346 // FIXME: Make VBases lazily computed when needed to avoid storing them.
4347 Record.push_back(Data.NumVBases);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004348 if (Data.NumVBases > 0)
4349 AddCXXBaseSpecifiersRef(Data.getVBases(), Data.getVBases() + Data.NumVBases,
4350 Record);
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004351
4352 AddUnresolvedSet(Data.Conversions, Record);
4353 AddUnresolvedSet(Data.VisibleConversions, Record);
4354 // Data.Definition is the owning decl, no need to write it.
4355 AddDeclRef(Data.FirstFriend, Record);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00004356
4357 // Add lambda-specific data.
4358 if (Data.IsLambda) {
4359 CXXRecordDecl::LambdaDefinitionData &Lambda = D->getLambdaData();
Douglas Gregorf4b7de12012-02-21 19:11:17 +00004360 Record.push_back(Lambda.Dependent);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00004361 Record.push_back(Lambda.NumCaptures);
4362 Record.push_back(Lambda.NumExplicitCaptures);
Douglas Gregor9e8c92a2012-02-20 19:44:39 +00004363 Record.push_back(Lambda.ManglingNumber);
Douglas Gregorccc1b5e2012-02-21 00:37:24 +00004364 AddDeclRef(Lambda.ContextDecl, Record);
Douglas Gregor9d36f5d2012-02-14 17:54:36 +00004365 for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
4366 LambdaExpr::Capture &Capture = Lambda.Captures[I];
4367 AddSourceLocation(Capture.getLocation(), Record);
4368 Record.push_back(Capture.isImplicit());
4369 Record.push_back(Capture.getCaptureKind()); // FIXME: stable!
4370 VarDecl *Var = Capture.capturesVariable()? Capture.getCapturedVar() : 0;
4371 AddDeclRef(Var, Record);
4372 AddSourceLocation(Capture.isPackExpansion()? Capture.getEllipsisLoc()
4373 : SourceLocation(),
4374 Record);
4375 }
4376 }
Argyrios Kyrtzidis89eaf3a2010-10-24 17:26:40 +00004377}
4378
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00004379void ASTWriter::ReaderInitialized(ASTReader *Reader) {
Sebastian Redlffaab3e2010-07-30 00:29:29 +00004380 assert(Reader && "Cannot remove chain");
Douglas Gregor10bc00f2011-08-18 04:12:04 +00004381 assert((!Chain || Chain == Reader) && "Cannot replace chain");
Sebastian Redlffaab3e2010-07-30 00:29:29 +00004382 assert(FirstDeclID == NextDeclID &&
4383 FirstTypeID == NextTypeID &&
4384 FirstIdentID == NextIdentID &&
Douglas Gregor26ced122011-12-01 00:59:36 +00004385 FirstSubmoduleID == NextSubmoduleID &&
Sebastian Redle58aa892010-08-04 18:21:41 +00004386 FirstSelectorID == NextSelectorID &&
Sebastian Redlffaab3e2010-07-30 00:29:29 +00004387 "Setting chain after writing has started.");
Douglas Gregorf62d43d2011-07-19 16:10:42 +00004388
Sebastian Redlffaab3e2010-07-30 00:29:29 +00004389 Chain = Reader;
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00004390
Douglas Gregor10bc00f2011-08-18 04:12:04 +00004391 FirstDeclID = NUM_PREDEF_DECL_IDS + Chain->getTotalNumDecls();
4392 FirstTypeID = NUM_PREDEF_TYPE_IDS + Chain->getTotalNumTypes();
4393 FirstIdentID = NUM_PREDEF_IDENT_IDS + Chain->getTotalNumIdentifiers();
Douglas Gregor26ced122011-12-01 00:59:36 +00004394 FirstSubmoduleID = NUM_PREDEF_SUBMODULE_IDS + Chain->getTotalNumSubmodules();
Douglas Gregor10bc00f2011-08-18 04:12:04 +00004395 FirstSelectorID = NUM_PREDEF_SELECTOR_IDS + Chain->getTotalNumSelectors();
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00004396 NextDeclID = FirstDeclID;
4397 NextTypeID = FirstTypeID;
4398 NextIdentID = FirstIdentID;
4399 NextSelectorID = FirstSelectorID;
Douglas Gregor26ced122011-12-01 00:59:36 +00004400 NextSubmoduleID = FirstSubmoduleID;
Sebastian Redlffaab3e2010-07-30 00:29:29 +00004401}
4402
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004403void ASTWriter::IdentifierRead(IdentID ID, IdentifierInfo *II) {
Sebastian Redlf2f0f032010-07-23 23:49:55 +00004404 IdentifierIDs[II] = ID;
Douglas Gregor040a8042011-02-11 00:26:14 +00004405 if (II->hasMacroDefinition())
4406 DeserializedMacroNames.push_back(II);
Sebastian Redlf2f0f032010-07-23 23:49:55 +00004407}
4408
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00004409void ASTWriter::TypeRead(TypeIdx Idx, QualType T) {
Douglas Gregor97475832010-10-05 18:37:06 +00004410 // Always take the highest-numbered type index. This copes with an interesting
4411 // case for chained AST writing where we schedule writing the type and then,
Michael J. Spencer20249a12010-10-21 03:16:25 +00004412 // later, deserialize the type from another AST. In this case, we want to
Douglas Gregor97475832010-10-05 18:37:06 +00004413 // keep the higher-numbered entry so that we can properly write it out to
4414 // the AST file.
4415 TypeIdx &StoredIdx = TypeIdxs[T];
4416 if (Idx.getIndex() >= StoredIdx.getIndex())
4417 StoredIdx = Idx;
Sebastian Redl30c514c2010-07-14 23:45:08 +00004418}
4419
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004420void ASTWriter::SelectorRead(SelectorID ID, Selector S) {
Sebastian Redl5d050072010-08-04 17:20:04 +00004421 SelectorIDs[S] = ID;
4422}
Douglas Gregor77424bc2010-10-02 19:29:26 +00004423
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00004424void ASTWriter::MacroDefinitionRead(serialization::PreprocessedEntityID ID,
Douglas Gregor77424bc2010-10-02 19:29:26 +00004425 MacroDefinition *MD) {
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00004426 assert(MacroDefinitions.find(MD) == MacroDefinitions.end());
Douglas Gregor77424bc2010-10-02 19:29:26 +00004427 MacroDefinitions[MD] = ID;
4428}
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004429
Douglas Gregor1d4c1132011-12-20 22:06:13 +00004430void ASTWriter::MacroVisible(IdentifierInfo *II) {
4431 DeserializedMacroNames.push_back(II);
4432}
4433
Douglas Gregora015cab2011-12-02 17:30:13 +00004434void ASTWriter::ModuleRead(serialization::SubmoduleID ID, Module *Mod) {
4435 assert(SubmoduleIDs.find(Mod) == SubmoduleIDs.end());
4436 SubmoduleIDs[Mod] = ID;
4437}
4438
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004439void ASTWriter::CompletedTagDefinition(const TagDecl *D) {
John McCall5e1cdac2011-10-07 06:10:15 +00004440 assert(D->isCompleteDefinition());
Douglas Gregor61c5e342011-09-17 00:05:03 +00004441 assert(!WritingAST && "Already writing the AST!");
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004442 if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) {
4443 // We are interested when a PCH decl is modified.
Douglas Gregor919814d2011-09-09 23:01:35 +00004444 if (RD->isFromASTFile()) {
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004445 // A forward reference was mutated into a definition. Rewrite it.
4446 // FIXME: This happens during template instantiation, should we
4447 // have created a new definition decl instead ?
Argyrios Kyrtzidisd3d07552010-10-28 07:38:45 +00004448 RewriteDecl(RD);
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004449 }
Argyrios Kyrtzidis565bf302010-10-24 17:26:50 +00004450 }
4451}
Argyrios Kyrtzidis100050b2010-10-28 07:38:51 +00004452void ASTWriter::AddedVisibleDecl(const DeclContext *DC, const Decl *D) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00004453 assert(!WritingAST && "Already writing the AST!");
4454
Argyrios Kyrtzidis100050b2010-10-28 07:38:51 +00004455 // TU and namespaces are handled elsewhere.
4456 if (isa<TranslationUnitDecl>(DC) || isa<NamespaceDecl>(DC))
4457 return;
4458
Douglas Gregor919814d2011-09-09 23:01:35 +00004459 if (!(!D->isFromASTFile() && cast<Decl>(DC)->isFromASTFile()))
Argyrios Kyrtzidis100050b2010-10-28 07:38:51 +00004460 return; // Not a source decl added to a DeclContext from PCH.
4461
4462 AddUpdatedDeclContext(DC);
4463}
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00004464
4465void ASTWriter::AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00004466 assert(!WritingAST && "Already writing the AST!");
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00004467 assert(D->isImplicit());
Douglas Gregor919814d2011-09-09 23:01:35 +00004468 if (!(!D->isFromASTFile() && RD->isFromASTFile()))
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00004469 return; // Not a source member added to a class from PCH.
4470 if (!isa<CXXMethodDecl>(D))
4471 return; // We are interested in lazily declared implicit methods.
4472
4473 // A decl coming from PCH was modified.
John McCall5e1cdac2011-10-07 06:10:15 +00004474 assert(RD->isCompleteDefinition());
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00004475 UpdateRecord &Record = DeclUpdates[RD];
4476 Record.push_back(UPD_CXX_ADDED_IMPLICIT_MEMBER);
Douglas Gregor61c5e342011-09-17 00:05:03 +00004477 Record.push_back(reinterpret_cast<uint64_t>(D));
Argyrios Kyrtzidisb6cc0e12010-10-24 17:26:54 +00004478}
Argyrios Kyrtzidisbef1a7b2010-10-28 07:38:42 +00004479
4480void ASTWriter::AddedCXXTemplateSpecialization(const ClassTemplateDecl *TD,
4481 const ClassTemplateSpecializationDecl *D) {
Argyrios Kyrtzidis0f04f692010-10-28 07:38:47 +00004482 // The specializations set is kept in the canonical template.
Douglas Gregor61c5e342011-09-17 00:05:03 +00004483 assert(!WritingAST && "Already writing the AST!");
Argyrios Kyrtzidis0f04f692010-10-28 07:38:47 +00004484 TD = TD->getCanonicalDecl();
Douglas Gregor919814d2011-09-09 23:01:35 +00004485 if (!(!D->isFromASTFile() && TD->isFromASTFile()))
Argyrios Kyrtzidisbef1a7b2010-10-28 07:38:42 +00004486 return; // Not a source specialization added to a template from PCH.
4487
4488 UpdateRecord &Record = DeclUpdates[TD];
4489 Record.push_back(UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION);
Douglas Gregor61c5e342011-09-17 00:05:03 +00004490 Record.push_back(reinterpret_cast<uint64_t>(D));
Argyrios Kyrtzidisbef1a7b2010-10-28 07:38:42 +00004491}
Douglas Gregor89d99802010-11-30 06:16:57 +00004492
Sebastian Redl5bbcdbf2011-04-14 14:07:59 +00004493void ASTWriter::AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
4494 const FunctionDecl *D) {
4495 // The specializations set is kept in the canonical template.
Douglas Gregor61c5e342011-09-17 00:05:03 +00004496 assert(!WritingAST && "Already writing the AST!");
Sebastian Redl5bbcdbf2011-04-14 14:07:59 +00004497 TD = TD->getCanonicalDecl();
Douglas Gregor919814d2011-09-09 23:01:35 +00004498 if (!(!D->isFromASTFile() && TD->isFromASTFile()))
Sebastian Redl5bbcdbf2011-04-14 14:07:59 +00004499 return; // Not a source specialization added to a template from PCH.
4500
4501 UpdateRecord &Record = DeclUpdates[TD];
4502 Record.push_back(UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION);
Douglas Gregor61c5e342011-09-17 00:05:03 +00004503 Record.push_back(reinterpret_cast<uint64_t>(D));
Sebastian Redl5bbcdbf2011-04-14 14:07:59 +00004504}
4505
Sebastian Redl58a2cd82011-04-24 16:28:06 +00004506void ASTWriter::CompletedImplicitDefinition(const FunctionDecl *D) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00004507 assert(!WritingAST && "Already writing the AST!");
Douglas Gregor919814d2011-09-09 23:01:35 +00004508 if (!D->isFromASTFile())
Sebastian Redl58a2cd82011-04-24 16:28:06 +00004509 return; // Declaration not imported from PCH.
4510
4511 // Implicit decl from a PCH was defined.
4512 // FIXME: Should implicit definition be a separate FunctionDecl?
4513 RewriteDecl(D);
4514}
4515
Sebastian Redlf79a7192011-04-29 08:19:30 +00004516void ASTWriter::StaticDataMemberInstantiated(const VarDecl *D) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00004517 assert(!WritingAST && "Already writing the AST!");
Douglas Gregor919814d2011-09-09 23:01:35 +00004518 if (!D->isFromASTFile())
Sebastian Redlf79a7192011-04-29 08:19:30 +00004519 return;
4520
4521 // Since the actual instantiation is delayed, this really means that we need
4522 // to update the instantiation location.
4523 UpdateRecord &Record = DeclUpdates[D];
4524 Record.push_back(UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER);
4525 AddSourceLocation(
4526 D->getMemberSpecializationInfo()->getPointOfInstantiation(), Record);
4527}
4528
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00004529void ASTWriter::AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
4530 const ObjCInterfaceDecl *IFD) {
Douglas Gregor61c5e342011-09-17 00:05:03 +00004531 assert(!WritingAST && "Already writing the AST!");
Douglas Gregor919814d2011-09-09 23:01:35 +00004532 if (!IFD->isFromASTFile())
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00004533 return; // Declaration not imported from PCH.
Douglas Gregorcff9f262012-01-27 01:47:08 +00004534
4535 assert(IFD->getDefinition() && "Category on a class without a definition?");
4536 ObjCClassesWithCategories.insert(
4537 const_cast<ObjCInterfaceDecl *>(IFD->getDefinition()));
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00004538}
Argyrios Kyrtzidisad834d52011-11-12 21:07:46 +00004539
Argyrios Kyrtzidis1a434152011-11-12 21:07:52 +00004540
Argyrios Kyrtzidisc80553e2011-11-14 04:52:29 +00004541void ASTWriter::AddedObjCPropertyInClassExtension(const ObjCPropertyDecl *Prop,
4542 const ObjCPropertyDecl *OrigProp,
4543 const ObjCCategoryDecl *ClassExt) {
4544 const ObjCInterfaceDecl *D = ClassExt->getClassInterface();
4545 if (!D)
4546 return;
4547
4548 assert(!WritingAST && "Already writing the AST!");
4549 if (!D->isFromASTFile())
4550 return; // Declaration not imported from PCH.
4551
4552 RewriteDecl(D);
4553}