Decl.cpp revision db9924191092b4d426cc066637d81698211846aa
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Decl.cpp - Declaration AST Node Implementation -------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 10e184baeaa112ceac32420f8ca127b8d4d152d109Argyrios Kyrtzidis// This file implements the Decl subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Decl.h" 152a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor#include "clang/AST/DeclCXX.h" 160de21fd85d79bccd32f04256f5b3328ab5ed7c95Steve Naroff#include "clang/AST/DeclObjC.h" 177da97d0f31e1ec16998d3de2cfd2e88fe3736673Douglas Gregor#include "clang/AST/DeclTemplate.h" 186c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner#include "clang/AST/ASTContext.h" 19b17166c8077cd900cca83a895c43b30ea6660598Argyrios Kyrtzidis#include "clang/AST/TypeLoc.h" 20e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Stmt.h" 2199f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes#include "clang/AST/Expr.h" 22337cba4b3e17b98cfa512dfd12e57f4ccb0859beAnders Carlsson#include "clang/AST/ExprCXX.h" 23d249e1d1f1498b81314459ceda19d6ff25c278adDouglas Gregor#include "clang/AST/PrettyPrinter.h" 24565bf30bf5607b9740d288d8d9c45cf38ea75298Argyrios Kyrtzidis#include "clang/AST/ASTMutationListener.h" 251b63e4f732dbc73d90abf886b4d21f8e3a165f6dChris Lattner#include "clang/Basic/Builtins.h" 26e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/Basic/IdentifierTable.h" 27465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara#include "clang/Basic/Specifiers.h" 28f1bbbb49f06a7462476cd88166fccda5feb15cabJohn McCall#include "llvm/Support/ErrorHandling.h" 2927f8a28bee33bb0e857cfe1a61c281bbc234b338Ted Kremenek 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32d3b9065ec7052ec4741783d2fb4130d13c766933Chris Lattner//===----------------------------------------------------------------------===// 334afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor// NamedDecl Implementation 345239304ff761b8b03eefb772bd5d830a9b9f1aeaArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 355239304ff761b8b03eefb772bd5d830a9b9f1aeaArgyrios Kyrtzidis 367f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCallstatic const VisibilityAttr *GetExplicitVisibility(const Decl *d) { 377f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // Use the most recent declaration of a variable. 387f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (const VarDecl *var = dyn_cast<VarDecl>(d)) 397f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return var->getMostRecentDeclaration()->getAttr<VisibilityAttr>(); 407f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 417f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // Use the most recent declaration of a function, and also handle 427f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // function template specializations. 437f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (const FunctionDecl *fn = dyn_cast<FunctionDecl>(d)) { 447f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (const VisibilityAttr *attr 457f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall = fn->getMostRecentDeclaration()->getAttr<VisibilityAttr>()) 467f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return attr; 477f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 487f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // If the function is a specialization of a template with an 497f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // explicit visibility attribute, use that. 507f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (FunctionTemplateSpecializationInfo *templateInfo 517f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall = fn->getTemplateSpecializationInfo()) 527f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return templateInfo->getTemplate()->getTemplatedDecl() 537f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall ->getAttr<VisibilityAttr>(); 547f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 557f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return 0; 56e7bc9722c807030409178d4af8ce8d1260bbd821John McCall } 577f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 587f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // Otherwise, just check the declaration itself first. 597f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (const VisibilityAttr *attr = d->getAttr<VisibilityAttr>()) 607f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return attr; 617f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 627f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // If there wasn't explicit visibility there, and this is a 637f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // specialization of a class template, check for visibility 647f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall // on the pattern. 657f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall if (const ClassTemplateSpecializationDecl *spec 667f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall = dyn_cast<ClassTemplateSpecializationDecl>(d)) 677f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return spec->getSpecializedTemplate()->getTemplatedDecl() 687f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall ->getAttr<VisibilityAttr>(); 697f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall 707f1b98760d419a09b2261c1ef901f6bc1ff33e19John McCall return 0; 71e7bc9722c807030409178d4af8ce8d1260bbd821John McCall} 72e7bc9722c807030409178d4af8ce8d1260bbd821John McCall 731fb0caaa7bef765b85972274e3b434af2572c141John McCallstatic Visibility GetVisibilityFromAttr(const VisibilityAttr *A) { 741fb0caaa7bef765b85972274e3b434af2572c141John McCall switch (A->getVisibility()) { 751fb0caaa7bef765b85972274e3b434af2572c141John McCall case VisibilityAttr::Default: 761fb0caaa7bef765b85972274e3b434af2572c141John McCall return DefaultVisibility; 771fb0caaa7bef765b85972274e3b434af2572c141John McCall case VisibilityAttr::Hidden: 781fb0caaa7bef765b85972274e3b434af2572c141John McCall return HiddenVisibility; 791fb0caaa7bef765b85972274e3b434af2572c141John McCall case VisibilityAttr::Protected: 801fb0caaa7bef765b85972274e3b434af2572c141John McCall return ProtectedVisibility; 811fb0caaa7bef765b85972274e3b434af2572c141John McCall } 821fb0caaa7bef765b85972274e3b434af2572c141John McCall return DefaultVisibility; 831fb0caaa7bef765b85972274e3b434af2572c141John McCall} 841fb0caaa7bef765b85972274e3b434af2572c141John McCall 85af14603ca61757cf4361b583b45639a04c57e651John McCalltypedef NamedDecl::LinkageInfo LinkageInfo; 861fb0caaa7bef765b85972274e3b434af2572c141John McCalltypedef std::pair<Linkage,Visibility> LVPair; 87af14603ca61757cf4361b583b45639a04c57e651John McCall 881fb0caaa7bef765b85972274e3b434af2572c141John McCallstatic LVPair merge(LVPair L, LVPair R) { 891fb0caaa7bef765b85972274e3b434af2572c141John McCall return LVPair(minLinkage(L.first, R.first), 901fb0caaa7bef765b85972274e3b434af2572c141John McCall minVisibility(L.second, R.second)); 911fb0caaa7bef765b85972274e3b434af2572c141John McCall} 921fb0caaa7bef765b85972274e3b434af2572c141John McCall 93af14603ca61757cf4361b583b45639a04c57e651John McCallstatic LVPair merge(LVPair L, LinkageInfo R) { 94af14603ca61757cf4361b583b45639a04c57e651John McCall return LVPair(minLinkage(L.first, R.linkage()), 95af14603ca61757cf4361b583b45639a04c57e651John McCall minVisibility(L.second, R.visibility())); 96af14603ca61757cf4361b583b45639a04c57e651John McCall} 97af14603ca61757cf4361b583b45639a04c57e651John McCall 98752c2e930a3ec30b5e338845fd5e7baae532ee69Benjamin Kramernamespace { 993698748400478880d2a146ef9eaa111cd0e60522John McCall/// Flags controlling the computation of linkage and visibility. 1003698748400478880d2a146ef9eaa111cd0e60522John McCallstruct LVFlags { 1013698748400478880d2a146ef9eaa111cd0e60522John McCall bool ConsiderGlobalVisibility; 1023698748400478880d2a146ef9eaa111cd0e60522John McCall bool ConsiderVisibilityAttributes; 1033698748400478880d2a146ef9eaa111cd0e60522John McCall 1043698748400478880d2a146ef9eaa111cd0e60522John McCall LVFlags() : ConsiderGlobalVisibility(true), 1053698748400478880d2a146ef9eaa111cd0e60522John McCall ConsiderVisibilityAttributes(true) { 1063698748400478880d2a146ef9eaa111cd0e60522John McCall } 1073698748400478880d2a146ef9eaa111cd0e60522John McCall 108381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor /// \brief Returns a set of flags that is only useful for computing the 109381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor /// linkage, not the visibility, of a declaration. 110381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor static LVFlags CreateOnlyDeclLinkage() { 111381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LVFlags F; 112381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor F.ConsiderGlobalVisibility = false; 113381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor F.ConsiderVisibilityAttributes = false; 114381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor return F; 115381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor } 116381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 1173698748400478880d2a146ef9eaa111cd0e60522John McCall /// Returns a set of flags, otherwise based on these, which ignores 1183698748400478880d2a146ef9eaa111cd0e60522John McCall /// off all sources of visibility except template arguments. 1193698748400478880d2a146ef9eaa111cd0e60522John McCall LVFlags onlyTemplateVisibility() const { 1203698748400478880d2a146ef9eaa111cd0e60522John McCall LVFlags F = *this; 1213698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility = false; 1223698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderVisibilityAttributes = false; 1233698748400478880d2a146ef9eaa111cd0e60522John McCall return F; 1243698748400478880d2a146ef9eaa111cd0e60522John McCall } 12589d63e5e4f4423455f7ee6b1e85143c34d088128Douglas Gregor}; 126752c2e930a3ec30b5e338845fd5e7baae532ee69Benjamin Kramer} // end anonymous namespace 1273698748400478880d2a146ef9eaa111cd0e60522John McCall 1280b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor/// \brief Get the most restrictive linkage for the types in the given 1290b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor/// template parameter list. 1301fb0caaa7bef765b85972274e3b434af2572c141John McCallstatic LVPair 1311fb0caaa7bef765b85972274e3b434af2572c141John McCallgetLVForTemplateParameterList(const TemplateParameterList *Params) { 1321fb0caaa7bef765b85972274e3b434af2572c141John McCall LVPair LV(ExternalLinkage, DefaultVisibility); 1330b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor for (TemplateParameterList::const_iterator P = Params->begin(), 1340b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor PEnd = Params->end(); 1350b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor P != PEnd; ++P) { 1366952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) { 1376952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (NTTP->isExpandedParameterPack()) { 1386952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) { 1396952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor QualType T = NTTP->getExpansionType(I); 1406952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (!T->isDependentType()) 1416952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor LV = merge(LV, T->getLinkageAndVisibility()); 1426952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 1436952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor continue; 1446952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 1456952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor 1460b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor if (!NTTP->getType()->isDependentType()) { 1471fb0caaa7bef765b85972274e3b434af2572c141John McCall LV = merge(LV, NTTP->getType()->getLinkageAndVisibility()); 1480b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor continue; 1490b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 1506952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor } 1510b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1520b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor if (TemplateTemplateParmDecl *TTP 1530b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor = dyn_cast<TemplateTemplateParmDecl>(*P)) { 154af14603ca61757cf4361b583b45639a04c57e651John McCall LV = merge(LV, getLVForTemplateParameterList(TTP->getTemplateParameters())); 1550b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 1560b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 1570b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1581fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 1590b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor} 1600b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 161381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor/// getLVForDecl - Get the linkage and visibility for the given declaration. 162381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregorstatic LinkageInfo getLVForDecl(const NamedDecl *D, LVFlags F); 163381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 1640b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor/// \brief Get the most restrictive linkage for the types and 1650b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor/// declarations in the given template argument list. 1661fb0caaa7bef765b85972274e3b434af2572c141John McCallstatic LVPair getLVForTemplateArgumentList(const TemplateArgument *Args, 167381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor unsigned NumArgs, 168381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LVFlags &F) { 1691fb0caaa7bef765b85972274e3b434af2572c141John McCall LVPair LV(ExternalLinkage, DefaultVisibility); 1700b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1710b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor for (unsigned I = 0; I != NumArgs; ++I) { 1720b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor switch (Args[I].getKind()) { 1730b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Null: 1740b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Integral: 1750b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Expression: 1760b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor break; 1770b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1780b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Type: 1791fb0caaa7bef765b85972274e3b434af2572c141John McCall LV = merge(LV, Args[I].getAsType()->getLinkageAndVisibility()); 1800b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor break; 1810b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1820b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Declaration: 1831fb0caaa7bef765b85972274e3b434af2572c141John McCall // The decl can validly be null as the representation of nullptr 1841fb0caaa7bef765b85972274e3b434af2572c141John McCall // arguments, valid only in C++0x. 1851fb0caaa7bef765b85972274e3b434af2572c141John McCall if (Decl *D = Args[I].getAsDecl()) { 18689d63e5e4f4423455f7ee6b1e85143c34d088128Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) 18789d63e5e4f4423455f7ee6b1e85143c34d088128Douglas Gregor LV = merge(LV, getLVForDecl(ND, F)); 1881fb0caaa7bef765b85972274e3b434af2572c141John McCall } 1890b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor break; 1900b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1910b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Template: 192a7fc901a2e39bfe55bfcff5934b2d9fdf9656491Douglas Gregor case TemplateArgument::TemplateExpansion: 193a7fc901a2e39bfe55bfcff5934b2d9fdf9656491Douglas Gregor if (TemplateDecl *Template 194a7fc901a2e39bfe55bfcff5934b2d9fdf9656491Douglas Gregor = Args[I].getAsTemplateOrTemplatePattern().getAsTemplateDecl()) 19589d63e5e4f4423455f7ee6b1e85143c34d088128Douglas Gregor LV = merge(LV, getLVForDecl(Template, F)); 1960b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor break; 1970b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 1980b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor case TemplateArgument::Pack: 1991fb0caaa7bef765b85972274e3b434af2572c141John McCall LV = merge(LV, getLVForTemplateArgumentList(Args[I].pack_begin(), 200381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor Args[I].pack_size(), 201381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor F)); 2020b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor break; 2030b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 2040b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 2050b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 2061fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 2070b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor} 2080b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 209af14603ca61757cf4361b583b45639a04c57e651John McCallstatic LVPair 210381d34e0b205ca27bcc7e7c1652561941c437965Douglas GregorgetLVForTemplateArgumentList(const TemplateArgumentList &TArgs, 211381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LVFlags &F) { 212381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor return getLVForTemplateArgumentList(TArgs.data(), TArgs.size(), F); 2133cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall} 2143cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 2153698748400478880d2a146ef9eaa111cd0e60522John McCallstatic LinkageInfo getLVForNamespaceScopeDecl(const NamedDecl *D, LVFlags F) { 2167a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl assert(D->getDeclContext()->getRedeclContext()->isFileContext() && 217d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor "Not a name having namespace scope"); 218d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor ASTContext &Context = D->getASTContext(); 219d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 220d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C++ [basic.link]p3: 221d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // A name having namespace scope (3.3.6) has internal linkage if it 222d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // is the name of 223d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - an object, reference, function or function template that is 224d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // explicitly declared static; or, 225d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // (This bullet corresponds to C99 6.2.2p3.) 226d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 227d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // Explicitly declared static. 228d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (Var->getStorageClass() == SC_Static) 229af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::internal(); 230d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 231d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - an object or reference that is explicitly declared const 232d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // and neither explicitly declared extern nor previously 233d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // declared to have external linkage; or 234d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // (there is no equivalent in C99) 235d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (Context.getLangOptions().CPlusPlus && 236e9d6554ba78fb81e810fdaec9b2c98ab96526e83Eli Friedman Var->getType().isConstant(Context) && 237d931b086984257de68868a64a235c2b4b34003fbJohn McCall Var->getStorageClass() != SC_Extern && 238d931b086984257de68868a64a235c2b4b34003fbJohn McCall Var->getStorageClass() != SC_PrivateExtern) { 239d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor bool FoundExtern = false; 240d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor for (const VarDecl *PrevVar = Var->getPreviousDeclaration(); 241d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor PrevVar && !FoundExtern; 242d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor PrevVar = PrevVar->getPreviousDeclaration()) 2430b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor if (isExternalLinkage(PrevVar->getLinkage())) 244d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor FoundExtern = true; 245d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 246d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (!FoundExtern) 247af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::internal(); 248d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 249d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } else if (isa<FunctionDecl>(D) || isa<FunctionTemplateDecl>(D)) { 2500b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor // C++ [temp]p4: 2510b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor // A non-member function template can have internal linkage; any 2520b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor // other template name shall have external linkage. 253d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor const FunctionDecl *Function = 0; 254d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (const FunctionTemplateDecl *FunTmpl 255d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor = dyn_cast<FunctionTemplateDecl>(D)) 256d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor Function = FunTmpl->getTemplatedDecl(); 257d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor else 258d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor Function = cast<FunctionDecl>(D); 259d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 260d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // Explicitly declared static. 261d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (Function->getStorageClass() == SC_Static) 262af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo(InternalLinkage, DefaultVisibility, false); 263d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } else if (const FieldDecl *Field = dyn_cast<FieldDecl>(D)) { 264d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a data member of an anonymous union. 265d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (cast<RecordDecl>(Field->getDeclContext())->isAnonymousStructOrUnion()) 266af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::internal(); 267d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 268d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 269094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth if (D->isInAnonymousNamespace()) { 270094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth const VarDecl *Var = dyn_cast<VarDecl>(D); 271094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth const FunctionDecl *Func = dyn_cast<FunctionDecl>(D); 272094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth if ((!Var || !Var->isExternC()) && (!Func || !Func->isExternC())) 273094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth return LinkageInfo::uniqueExternal(); 274094b64336495496ca29bc1e4774f5e2ceed79096Chandler Carruth } 275e7bc9722c807030409178d4af8ce8d1260bbd821John McCall 2761fb0caaa7bef765b85972274e3b434af2572c141John McCall // Set up the defaults. 2771fb0caaa7bef765b85972274e3b434af2572c141John McCall 2781fb0caaa7bef765b85972274e3b434af2572c141John McCall // C99 6.2.2p5: 2791fb0caaa7bef765b85972274e3b434af2572c141John McCall // If the declaration of an identifier for an object has file 2801fb0caaa7bef765b85972274e3b434af2572c141John McCall // scope and no storage-class specifier, its linkage is 2811fb0caaa7bef765b85972274e3b434af2572c141John McCall // external. 282af14603ca61757cf4361b583b45639a04c57e651John McCall LinkageInfo LV; 283af14603ca61757cf4361b583b45639a04c57e651John McCall 2843698748400478880d2a146ef9eaa111cd0e60522John McCall if (F.ConsiderVisibilityAttributes) { 2853698748400478880d2a146ef9eaa111cd0e60522John McCall if (const VisibilityAttr *VA = GetExplicitVisibility(D)) { 2863698748400478880d2a146ef9eaa111cd0e60522John McCall LV.setVisibility(GetVisibilityFromAttr(VA), true); 2873698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility = false; 28890f1450c109fbbd333001165bbd986061f7c4513John McCall } else { 28990f1450c109fbbd333001165bbd986061f7c4513John McCall // If we're declared in a namespace with a visibility attribute, 29090f1450c109fbbd333001165bbd986061f7c4513John McCall // use that namespace's visibility, but don't call it explicit. 29190f1450c109fbbd333001165bbd986061f7c4513John McCall for (const DeclContext *DC = D->getDeclContext(); 29290f1450c109fbbd333001165bbd986061f7c4513John McCall !isa<TranslationUnitDecl>(DC); 29390f1450c109fbbd333001165bbd986061f7c4513John McCall DC = DC->getParent()) { 29490f1450c109fbbd333001165bbd986061f7c4513John McCall if (!isa<NamespaceDecl>(DC)) continue; 29590f1450c109fbbd333001165bbd986061f7c4513John McCall if (const VisibilityAttr *VA = 29690f1450c109fbbd333001165bbd986061f7c4513John McCall cast<NamespaceDecl>(DC)->getAttr<VisibilityAttr>()) { 29790f1450c109fbbd333001165bbd986061f7c4513John McCall LV.setVisibility(GetVisibilityFromAttr(VA), false); 29890f1450c109fbbd333001165bbd986061f7c4513John McCall F.ConsiderGlobalVisibility = false; 29990f1450c109fbbd333001165bbd986061f7c4513John McCall break; 30090f1450c109fbbd333001165bbd986061f7c4513John McCall } 30190f1450c109fbbd333001165bbd986061f7c4513John McCall } 3023698748400478880d2a146ef9eaa111cd0e60522John McCall } 303af14603ca61757cf4361b583b45639a04c57e651John McCall } 3041fb0caaa7bef765b85972274e3b434af2572c141John McCall 305d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C++ [basic.link]p4: 3061fb0caaa7bef765b85972274e3b434af2572c141John McCall 307d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // A name having namespace scope has external linkage if it is the 308d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // name of 309d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // 310d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - an object or reference, unless it has internal linkage; or 311d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (const VarDecl *Var = dyn_cast<VarDecl>(D)) { 312110e8e56af30363072c140285961592b0107f789John McCall // GCC applies the following optimization to variables and static 313110e8e56af30363072c140285961592b0107f789John McCall // data members, but not to functions: 314110e8e56af30363072c140285961592b0107f789John McCall // 3151fb0caaa7bef765b85972274e3b434af2572c141John McCall // Modify the variable's LV by the LV of its type unless this is 3161fb0caaa7bef765b85972274e3b434af2572c141John McCall // C or extern "C". This follows from [basic.link]p9: 3171fb0caaa7bef765b85972274e3b434af2572c141John McCall // A type without linkage shall not be used as the type of a 3181fb0caaa7bef765b85972274e3b434af2572c141John McCall // variable or function with external linkage unless 3191fb0caaa7bef765b85972274e3b434af2572c141John McCall // - the entity has C language linkage, or 3201fb0caaa7bef765b85972274e3b434af2572c141John McCall // - the entity is declared within an unnamed namespace, or 3211fb0caaa7bef765b85972274e3b434af2572c141John McCall // - the entity is not used or is defined in the same 3221fb0caaa7bef765b85972274e3b434af2572c141John McCall // translation unit. 3231fb0caaa7bef765b85972274e3b434af2572c141John McCall // and [basic.link]p10: 3241fb0caaa7bef765b85972274e3b434af2572c141John McCall // ...the types specified by all declarations referring to a 3251fb0caaa7bef765b85972274e3b434af2572c141John McCall // given variable or function shall be identical... 3261fb0caaa7bef765b85972274e3b434af2572c141John McCall // C does not have an equivalent rule. 3271fb0caaa7bef765b85972274e3b434af2572c141John McCall // 328ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall // Ignore this if we've got an explicit attribute; the user 329ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall // probably knows what they're doing. 330ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall // 3311fb0caaa7bef765b85972274e3b434af2572c141John McCall // Note that we don't want to make the variable non-external 3321fb0caaa7bef765b85972274e3b434af2572c141John McCall // because of this, but unique-external linkage suits us. 333ee30102a9ef32cdbf0afe0e4c07a53d265a18f98John McCall if (Context.getLangOptions().CPlusPlus && !Var->isExternC()) { 3341fb0caaa7bef765b85972274e3b434af2572c141John McCall LVPair TypeLV = Var->getType()->getLinkageAndVisibility(); 3351fb0caaa7bef765b85972274e3b434af2572c141John McCall if (TypeLV.first != ExternalLinkage) 336af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::uniqueExternal(); 337af14603ca61757cf4361b583b45639a04c57e651John McCall if (!LV.visibilityExplicit()) 338af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(TypeLV.second); 339110e8e56af30363072c140285961592b0107f789John McCall } 340110e8e56af30363072c140285961592b0107f789John McCall 34135cebc3eea898637057b10b5cf7dd08b1d788980John McCall if (Var->getStorageClass() == SC_PrivateExtern) 34235cebc3eea898637057b10b5cf7dd08b1d788980John McCall LV.setVisibility(HiddenVisibility, true); 34335cebc3eea898637057b10b5cf7dd08b1d788980John McCall 344d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (!Context.getLangOptions().CPlusPlus && 345d931b086984257de68868a64a235c2b4b34003fbJohn McCall (Var->getStorageClass() == SC_Extern || 346d931b086984257de68868a64a235c2b4b34003fbJohn McCall Var->getStorageClass() == SC_PrivateExtern)) { 3471fb0caaa7bef765b85972274e3b434af2572c141John McCall 348d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C99 6.2.2p4: 349d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // For an identifier declared with the storage-class specifier 350d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // extern in a scope in which a prior declaration of that 351d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // identifier is visible, if the prior declaration specifies 352d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // internal or external linkage, the linkage of the identifier 353d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // at the later declaration is the same as the linkage 354d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // specified at the prior declaration. If no prior declaration 355d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // is visible, or if the prior declaration specifies no 356d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // linkage, then the identifier has external linkage. 357d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (const VarDecl *PrevVar = Var->getPreviousDeclaration()) { 358381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo PrevLV = getLVForDecl(PrevVar, F); 359af14603ca61757cf4361b583b45639a04c57e651John McCall if (PrevLV.linkage()) LV.setLinkage(PrevLV.linkage()); 360af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(PrevLV); 361d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 362d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 363d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 364d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a function, unless it has internal linkage; or 3651fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 36667fa6d5ea630c800c3c96e129129aba93d1487c2John McCall // In theory, we can modify the function's LV by the LV of its 36767fa6d5ea630c800c3c96e129129aba93d1487c2John McCall // type unless it has C linkage (see comment above about variables 36867fa6d5ea630c800c3c96e129129aba93d1487c2John McCall // for justification). In practice, GCC doesn't do this, so it's 36967fa6d5ea630c800c3c96e129129aba93d1487c2John McCall // just too painful to make work. 3701fb0caaa7bef765b85972274e3b434af2572c141John McCall 37135cebc3eea898637057b10b5cf7dd08b1d788980John McCall if (Function->getStorageClass() == SC_PrivateExtern) 37235cebc3eea898637057b10b5cf7dd08b1d788980John McCall LV.setVisibility(HiddenVisibility, true); 37335cebc3eea898637057b10b5cf7dd08b1d788980John McCall 374d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C99 6.2.2p5: 375d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // If the declaration of an identifier for a function has no 376d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // storage-class specifier, its linkage is determined exactly 377d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // as if it were declared with the storage-class specifier 378d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // extern. 379d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (!Context.getLangOptions().CPlusPlus && 380d931b086984257de68868a64a235c2b4b34003fbJohn McCall (Function->getStorageClass() == SC_Extern || 381d931b086984257de68868a64a235c2b4b34003fbJohn McCall Function->getStorageClass() == SC_PrivateExtern || 382d931b086984257de68868a64a235c2b4b34003fbJohn McCall Function->getStorageClass() == SC_None)) { 383d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C99 6.2.2p4: 384d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // For an identifier declared with the storage-class specifier 385d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // extern in a scope in which a prior declaration of that 386d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // identifier is visible, if the prior declaration specifies 387d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // internal or external linkage, the linkage of the identifier 388d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // at the later declaration is the same as the linkage 389d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // specified at the prior declaration. If no prior declaration 390d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // is visible, or if the prior declaration specifies no 391d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // linkage, then the identifier has external linkage. 392d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor if (const FunctionDecl *PrevFunc = Function->getPreviousDeclaration()) { 393381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo PrevLV = getLVForDecl(PrevFunc, F); 394af14603ca61757cf4361b583b45639a04c57e651John McCall if (PrevLV.linkage()) LV.setLinkage(PrevLV.linkage()); 395af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(PrevLV); 396d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 397d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 398d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 399af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // In C++, then if the type of the function uses a type with 400af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // unique-external linkage, it's not legally usable from outside 401af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // this translation unit. However, we should use the C linkage 402af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // rules instead for extern "C" declarations. 403af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall if (Context.getLangOptions().CPlusPlus && !Function->isExternC() && 404af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall Function->getType()->getLinkage() == UniqueExternalLinkage) 405af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall return LinkageInfo::uniqueExternal(); 406af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall 4070b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor if (FunctionTemplateSpecializationInfo *SpecInfo 4080b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor = Function->getTemplateSpecializationInfo()) { 4093698748400478880d2a146ef9eaa111cd0e60522John McCall LV.merge(getLVForDecl(SpecInfo->getTemplate(), 4103698748400478880d2a146ef9eaa111cd0e60522John McCall F.onlyTemplateVisibility())); 4110b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor const TemplateArgumentList &TemplateArgs = *SpecInfo->TemplateArguments; 412381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.merge(getLVForTemplateArgumentList(TemplateArgs, F)); 4130b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 4140b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 415d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a named class (Clause 9), or an unnamed class defined in a 416d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // typedef declaration in which the class has the typedef name 417d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // for linkage purposes (7.1.3); or 418d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a named enumeration (7.2), or an unnamed enumeration 419d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // defined in a typedef declaration in which the enumeration 420d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // has the typedef name for linkage purposes (7.1.3); or 4211fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (const TagDecl *Tag = dyn_cast<TagDecl>(D)) { 4221fb0caaa7bef765b85972274e3b434af2572c141John McCall // Unnamed tags have no linkage. 4231fb0caaa7bef765b85972274e3b434af2572c141John McCall if (!Tag->getDeclName() && !Tag->getTypedefForAnonDecl()) 424af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 4251fb0caaa7bef765b85972274e3b434af2572c141John McCall 4261fb0caaa7bef765b85972274e3b434af2572c141John McCall // If this is a class template specialization, consider the 4271fb0caaa7bef765b85972274e3b434af2572c141John McCall // linkage of the template and template arguments. 4281fb0caaa7bef765b85972274e3b434af2572c141John McCall if (const ClassTemplateSpecializationDecl *Spec 4291fb0caaa7bef765b85972274e3b434af2572c141John McCall = dyn_cast<ClassTemplateSpecializationDecl>(Tag)) { 4303698748400478880d2a146ef9eaa111cd0e60522John McCall // From the template. 4313698748400478880d2a146ef9eaa111cd0e60522John McCall LV.merge(getLVForDecl(Spec->getSpecializedTemplate(), 4323698748400478880d2a146ef9eaa111cd0e60522John McCall F.onlyTemplateVisibility())); 4331fb0caaa7bef765b85972274e3b434af2572c141John McCall 4341fb0caaa7bef765b85972274e3b434af2572c141John McCall // The arguments at which the template was instantiated. 4351fb0caaa7bef765b85972274e3b434af2572c141John McCall const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); 436381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.merge(getLVForTemplateArgumentList(TemplateArgs, F)); 4370b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor } 438d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 439ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall // Consider -fvisibility unless the type has C linkage. 4403698748400478880d2a146ef9eaa111cd0e60522John McCall if (F.ConsiderGlobalVisibility) 4413698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility = 442ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall (Context.getLangOptions().CPlusPlus && 443ac65c6208d48b0f9b4661c30c28997a280ac5ba6John McCall !Tag->getDeclContext()->isExternCContext()); 4441fb0caaa7bef765b85972274e3b434af2572c141John McCall 445d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - an enumerator belonging to an enumeration with external linkage; 4461fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (isa<EnumConstantDecl>(D)) { 447381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo EnumLV = getLVForDecl(cast<NamedDecl>(D->getDeclContext()), F); 448af14603ca61757cf4361b583b45639a04c57e651John McCall if (!isExternalLinkage(EnumLV.linkage())) 449af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 450af14603ca61757cf4361b583b45639a04c57e651John McCall LV.merge(EnumLV); 451d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 452d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a template, unless it is a function template that has 453d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // internal linkage (Clause 14); 4541fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (const TemplateDecl *Template = dyn_cast<TemplateDecl>(D)) { 455af14603ca61757cf4361b583b45639a04c57e651John McCall LV.merge(getLVForTemplateParameterList(Template->getTemplateParameters())); 4560b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 457d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // - a namespace (7.3), unless it is declared within an unnamed 458d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // namespace. 4591fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (isa<NamespaceDecl>(D) && !D->isInAnonymousNamespace()) { 4601fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 4611fb0caaa7bef765b85972274e3b434af2572c141John McCall 4621fb0caaa7bef765b85972274e3b434af2572c141John McCall // By extension, we assign external linkage to Objective-C 4631fb0caaa7bef765b85972274e3b434af2572c141John McCall // interfaces. 4641fb0caaa7bef765b85972274e3b434af2572c141John McCall } else if (isa<ObjCInterfaceDecl>(D)) { 4651fb0caaa7bef765b85972274e3b434af2572c141John McCall // fallout 4661fb0caaa7bef765b85972274e3b434af2572c141John McCall 4671fb0caaa7bef765b85972274e3b434af2572c141John McCall // Everything not covered here has no linkage. 4681fb0caaa7bef765b85972274e3b434af2572c141John McCall } else { 469af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 4701fb0caaa7bef765b85972274e3b434af2572c141John McCall } 4711fb0caaa7bef765b85972274e3b434af2572c141John McCall 4721fb0caaa7bef765b85972274e3b434af2572c141John McCall // If we ended up with non-external linkage, visibility should 4731fb0caaa7bef765b85972274e3b434af2572c141John McCall // always be default. 474af14603ca61757cf4361b583b45639a04c57e651John McCall if (LV.linkage() != ExternalLinkage) 475af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo(LV.linkage(), DefaultVisibility, false); 4761fb0caaa7bef765b85972274e3b434af2572c141John McCall 4771fb0caaa7bef765b85972274e3b434af2572c141John McCall // If we didn't end up with hidden visibility, consider attributes 4781fb0caaa7bef765b85972274e3b434af2572c141John McCall // and -fvisibility. 4793698748400478880d2a146ef9eaa111cd0e60522John McCall if (F.ConsiderGlobalVisibility) 480af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(Context.getLangOptions().getVisibilityMode()); 481d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 4821fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 483d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor} 484d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 4853698748400478880d2a146ef9eaa111cd0e60522John McCallstatic LinkageInfo getLVForClassMember(const NamedDecl *D, LVFlags F) { 4861fb0caaa7bef765b85972274e3b434af2572c141John McCall // Only certain class members have linkage. Note that fields don't 4871fb0caaa7bef765b85972274e3b434af2572c141John McCall // really have linkage, but it's convenient to say they do for the 4881fb0caaa7bef765b85972274e3b434af2572c141John McCall // purposes of calculating linkage of pointer-to-data-member 4891fb0caaa7bef765b85972274e3b434af2572c141John McCall // template arguments. 4903cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall if (!(isa<CXXMethodDecl>(D) || 4913cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall isa<VarDecl>(D) || 4921fb0caaa7bef765b85972274e3b434af2572c141John McCall isa<FieldDecl>(D) || 4933cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall (isa<TagDecl>(D) && 4943cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall (D->getDeclName() || cast<TagDecl>(D)->getTypedefForAnonDecl())))) 495af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 4963cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 4973698748400478880d2a146ef9eaa111cd0e60522John McCall LinkageInfo LV; 4983698748400478880d2a146ef9eaa111cd0e60522John McCall 4993698748400478880d2a146ef9eaa111cd0e60522John McCall // The flags we're going to use to compute the class's visibility. 5003698748400478880d2a146ef9eaa111cd0e60522John McCall LVFlags ClassF = F; 5013698748400478880d2a146ef9eaa111cd0e60522John McCall 5023698748400478880d2a146ef9eaa111cd0e60522John McCall // If we have an explicit visibility attribute, merge that in. 5033698748400478880d2a146ef9eaa111cd0e60522John McCall if (F.ConsiderVisibilityAttributes) { 5043698748400478880d2a146ef9eaa111cd0e60522John McCall if (const VisibilityAttr *VA = GetExplicitVisibility(D)) { 5053698748400478880d2a146ef9eaa111cd0e60522John McCall LV.mergeVisibility(GetVisibilityFromAttr(VA), true); 5063698748400478880d2a146ef9eaa111cd0e60522John McCall 5073698748400478880d2a146ef9eaa111cd0e60522John McCall // Ignore global visibility later, but not this attribute. 5083698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility = false; 5093698748400478880d2a146ef9eaa111cd0e60522John McCall 5103698748400478880d2a146ef9eaa111cd0e60522John McCall // Ignore both global visibility and attributes when computing our 5113698748400478880d2a146ef9eaa111cd0e60522John McCall // parent's visibility. 5123698748400478880d2a146ef9eaa111cd0e60522John McCall ClassF = F.onlyTemplateVisibility(); 5133698748400478880d2a146ef9eaa111cd0e60522John McCall } 5143698748400478880d2a146ef9eaa111cd0e60522John McCall } 515af14603ca61757cf4361b583b45639a04c57e651John McCall 516af14603ca61757cf4361b583b45639a04c57e651John McCall // Class members only have linkage if their class has external 5173698748400478880d2a146ef9eaa111cd0e60522John McCall // linkage. 5183698748400478880d2a146ef9eaa111cd0e60522John McCall LV.merge(getLVForDecl(cast<RecordDecl>(D->getDeclContext()), ClassF)); 5193698748400478880d2a146ef9eaa111cd0e60522John McCall if (!isExternalLinkage(LV.linkage())) 520af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 5213cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 5223cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall // If the class already has unique-external linkage, we can't improve. 5233698748400478880d2a146ef9eaa111cd0e60522John McCall if (LV.linkage() == UniqueExternalLinkage) 524af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::uniqueExternal(); 5251fb0caaa7bef765b85972274e3b434af2572c141John McCall 5263cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(D)) { 527af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // If the type of the function uses a type with unique-external 528af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall // linkage, it's not legally usable from outside this translation unit. 529af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall if (MD->getType()->getLinkage() == UniqueExternalLinkage) 530af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall return LinkageInfo::uniqueExternal(); 531af8ca37a7fa45bff84831706c6d85f9e5b4e1d15John McCall 532110e8e56af30363072c140285961592b0107f789John McCall TemplateSpecializationKind TSK = TSK_Undeclared; 533110e8e56af30363072c140285961592b0107f789John McCall 5341fb0caaa7bef765b85972274e3b434af2572c141John McCall // If this is a method template specialization, use the linkage for 5351fb0caaa7bef765b85972274e3b434af2572c141John McCall // the template parameters and arguments. 5361fb0caaa7bef765b85972274e3b434af2572c141John McCall if (FunctionTemplateSpecializationInfo *Spec 5373cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall = MD->getTemplateSpecializationInfo()) { 538381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.merge(getLVForTemplateArgumentList(*Spec->TemplateArguments, F)); 539af14603ca61757cf4361b583b45639a04c57e651John McCall LV.merge(getLVForTemplateParameterList( 5401fb0caaa7bef765b85972274e3b434af2572c141John McCall Spec->getTemplate()->getTemplateParameters())); 541110e8e56af30363072c140285961592b0107f789John McCall 542110e8e56af30363072c140285961592b0107f789John McCall TSK = Spec->getTemplateSpecializationKind(); 543110e8e56af30363072c140285961592b0107f789John McCall } else if (MemberSpecializationInfo *MSI = 544110e8e56af30363072c140285961592b0107f789John McCall MD->getMemberSpecializationInfo()) { 545110e8e56af30363072c140285961592b0107f789John McCall TSK = MSI->getTemplateSpecializationKind(); 5463cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall } 5473cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 548110e8e56af30363072c140285961592b0107f789John McCall // If we're paying attention to global visibility, apply 549110e8e56af30363072c140285961592b0107f789John McCall // -finline-visibility-hidden if this is an inline method. 550110e8e56af30363072c140285961592b0107f789John McCall // 551af14603ca61757cf4361b583b45639a04c57e651John McCall // Note that ConsiderGlobalVisibility doesn't yet have information 552af14603ca61757cf4361b583b45639a04c57e651John McCall // about whether containing classes have visibility attributes, 553af14603ca61757cf4361b583b45639a04c57e651John McCall // and that's intentional. 554af14603ca61757cf4361b583b45639a04c57e651John McCall if (TSK != TSK_ExplicitInstantiationDeclaration && 5553698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility && 55666cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall MD->getASTContext().getLangOptions().InlineVisibilityHidden) { 55766cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall // InlineVisibilityHidden only applies to definitions, and 55866cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall // isInlined() only gives meaningful answers on definitions 55966cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall // anyway. 56066cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall const FunctionDecl *Def = 0; 56166cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall if (MD->hasBody(Def) && Def->isInlined()) 56266cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall LV.setVisibility(HiddenVisibility); 56366cbcf3f150d075fead7c5935b6e9c61a32cf3d4John McCall } 5641fb0caaa7bef765b85972274e3b434af2572c141John McCall 565110e8e56af30363072c140285961592b0107f789John McCall // Note that in contrast to basically every other situation, we 566110e8e56af30363072c140285961592b0107f789John McCall // *do* apply -fvisibility to method declarations. 567110e8e56af30363072c140285961592b0107f789John McCall 568110e8e56af30363072c140285961592b0107f789John McCall } else if (const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(D)) { 569110e8e56af30363072c140285961592b0107f789John McCall if (const ClassTemplateSpecializationDecl *Spec 570110e8e56af30363072c140285961592b0107f789John McCall = dyn_cast<ClassTemplateSpecializationDecl>(RD)) { 571110e8e56af30363072c140285961592b0107f789John McCall // Merge template argument/parameter information for member 572110e8e56af30363072c140285961592b0107f789John McCall // class template specializations. 573381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.merge(getLVForTemplateArgumentList(Spec->getTemplateArgs(), F)); 574af14603ca61757cf4361b583b45639a04c57e651John McCall LV.merge(getLVForTemplateParameterList( 5751fb0caaa7bef765b85972274e3b434af2572c141John McCall Spec->getSpecializedTemplate()->getTemplateParameters())); 576110e8e56af30363072c140285961592b0107f789John McCall } 577110e8e56af30363072c140285961592b0107f789John McCall 578110e8e56af30363072c140285961592b0107f789John McCall // Static data members. 579110e8e56af30363072c140285961592b0107f789John McCall } else if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 580ee30102a9ef32cdbf0afe0e4c07a53d265a18f98John McCall // Modify the variable's linkage by its type, but ignore the 581ee30102a9ef32cdbf0afe0e4c07a53d265a18f98John McCall // type's visibility unless it's a definition. 582ee30102a9ef32cdbf0afe0e4c07a53d265a18f98John McCall LVPair TypeLV = VD->getType()->getLinkageAndVisibility(); 583ee30102a9ef32cdbf0afe0e4c07a53d265a18f98John McCall if (TypeLV.first != ExternalLinkage) 584af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeLinkage(UniqueExternalLinkage); 585af14603ca61757cf4361b583b45639a04c57e651John McCall if (!LV.visibilityExplicit()) 586af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(TypeLV.second); 587110e8e56af30363072c140285961592b0107f789John McCall } 588110e8e56af30363072c140285961592b0107f789John McCall 5893698748400478880d2a146ef9eaa111cd0e60522John McCall F.ConsiderGlobalVisibility &= !LV.visibilityExplicit(); 590110e8e56af30363072c140285961592b0107f789John McCall 591110e8e56af30363072c140285961592b0107f789John McCall // Apply -fvisibility if desired. 5923698748400478880d2a146ef9eaa111cd0e60522John McCall if (F.ConsiderGlobalVisibility && LV.visibility() != HiddenVisibility) { 593af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(D->getASTContext().getLangOptions().getVisibilityMode()); 5943cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall } 5953cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 5961fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 5973cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall} 5983cdfc4d1862b7195159c376a4542b440037dac6aJohn McCall 599f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCallstatic void clearLinkageForClass(const CXXRecordDecl *record) { 600f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall for (CXXRecordDecl::decl_iterator 601f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall i = record->decls_begin(), e = record->decls_end(); i != e; ++i) { 602f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall Decl *child = *i; 603f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall if (isa<NamedDecl>(child)) 604f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall cast<NamedDecl>(child)->ClearLinkageCache(); 605f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall } 606f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall} 607f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 608f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCallvoid NamedDecl::ClearLinkageCache() { 609f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // Note that we can't skip clearing the linkage of children just 610f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // because the parent doesn't have cached linkage: we don't cache 611f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // when computing linkage for parent contexts. 612f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 613f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall HasCachedLinkage = 0; 614f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 615f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // If we're changing the linkage of a class, we need to reset the 616f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // linkage of child declarations, too. 617f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall if (const CXXRecordDecl *record = dyn_cast<CXXRecordDecl>(this)) 618f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall clearLinkageForClass(record); 619f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 62015e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall if (ClassTemplateDecl *temp = 62115e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall dyn_cast<ClassTemplateDecl>(const_cast<NamedDecl*>(this))) { 622f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall // Clear linkage for the template pattern. 623f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall CXXRecordDecl *record = temp->getTemplatedDecl(); 624f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall record->HasCachedLinkage = 0; 625f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall clearLinkageForClass(record); 626f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 62715e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall // We need to clear linkage for specializations, too. 62815e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall for (ClassTemplateDecl::spec_iterator 62915e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall i = temp->spec_begin(), e = temp->spec_end(); i != e; ++i) 63015e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall i->ClearLinkageCache(); 631f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall } 63215e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall 63315e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall // Clear cached linkage for function template decls, too. 63415e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall if (FunctionTemplateDecl *temp = 63515e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall dyn_cast<FunctionTemplateDecl>(const_cast<NamedDecl*>(this))) 63615e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall for (FunctionTemplateDecl::spec_iterator 63715e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall i = temp->spec_begin(), e = temp->spec_end(); i != e; ++i) 63815e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall i->ClearLinkageCache(); 63915e310a3b970b64a84cb30f0005bc396b4d978cbJohn McCall 640f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall} 641f76b092e1a6f0df4a5c64aae3c71d6e81e4b717cJohn McCall 642381d34e0b205ca27bcc7e7c1652561941c437965Douglas GregorLinkage NamedDecl::getLinkage() const { 643381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (HasCachedLinkage) { 64456ed7927232256516efcf6afb7bd59bad1e7af71Benjamin Kramer assert(Linkage(CachedLinkage) == 64556ed7927232256516efcf6afb7bd59bad1e7af71Benjamin Kramer getLVForDecl(this, LVFlags::CreateOnlyDeclLinkage()).linkage()); 646381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor return Linkage(CachedLinkage); 647381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor } 648381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 649381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor CachedLinkage = getLVForDecl(this, 650381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LVFlags::CreateOnlyDeclLinkage()).linkage(); 651381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor HasCachedLinkage = 1; 652381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor return Linkage(CachedLinkage); 653381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor} 654381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 655af14603ca61757cf4361b583b45639a04c57e651John McCallLinkageInfo NamedDecl::getLinkageAndVisibility() const { 656381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo LI = getLVForDecl(this, LVFlags()); 65756ed7927232256516efcf6afb7bd59bad1e7af71Benjamin Kramer assert(!HasCachedLinkage || Linkage(CachedLinkage) == LI.linkage()); 658381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor HasCachedLinkage = 1; 659381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor CachedLinkage = LI.linkage(); 660381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor return LI; 6610df9587ab011c12968fcbe3518666b2117afe350John McCall} 662becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek 6633698748400478880d2a146ef9eaa111cd0e60522John McCallstatic LinkageInfo getLVForDecl(const NamedDecl *D, LVFlags Flags) { 664becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek // Objective-C: treat all Objective-C declarations as having external 665becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek // linkage. 6660df9587ab011c12968fcbe3518666b2117afe350John McCall switch (D->getKind()) { 667becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek default: 668becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek break; 6691fb0caaa7bef765b85972274e3b434af2572c141John McCall case Decl::TemplateTemplateParm: // count these as external 6701fb0caaa7bef765b85972274e3b434af2572c141John McCall case Decl::NonTypeTemplateParm: 671becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCAtDefsField: 672becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCCategory: 673becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCCategoryImpl: 674becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCCompatibleAlias: 675becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCForwardProtocol: 676becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCImplementation: 677becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCMethod: 678becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCProperty: 679becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCPropertyImpl: 680becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek case Decl::ObjCProtocol: 681af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::external(); 682becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek } 683becc308ff32df8c5738ffb958f8033189d62d6f2Ted Kremenek 684d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // Handle linkage for namespace-scope names. 6850df9587ab011c12968fcbe3518666b2117afe350John McCall if (D->getDeclContext()->getRedeclContext()->isFileContext()) 6863698748400478880d2a146ef9eaa111cd0e60522John McCall return getLVForNamespaceScopeDecl(D, Flags); 687d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 688d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C++ [basic.link]p5: 689d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // In addition, a member function, static data member, a named 690d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // class or enumeration of class scope, or an unnamed class or 691d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // enumeration defined in a class-scope typedef declaration such 692d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // that the class or enumeration has the typedef name for linkage 693d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // purposes (7.1.3), has external linkage if the name of the class 694d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // has external linkage. 6950df9587ab011c12968fcbe3518666b2117afe350John McCall if (D->getDeclContext()->isRecord()) 6963698748400478880d2a146ef9eaa111cd0e60522John McCall return getLVForClassMember(D, Flags); 697d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 698d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C++ [basic.link]p6: 699d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // The name of a function declared in block scope and the name of 700d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // an object declared by a block scope extern declaration have 701d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // linkage. If there is a visible declaration of an entity with 702d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // linkage having the same name and type, ignoring entities 703d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // declared outside the innermost enclosing namespace scope, the 704d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // block scope declaration declares that same entity and receives 705d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // the linkage of the previous declaration. If there is more than 706d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // one such matching entity, the program is ill-formed. Otherwise, 707d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // if no matching entity is found, the block scope entity receives 708d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // external linkage. 7090df9587ab011c12968fcbe3518666b2117afe350John McCall if (D->getLexicalDeclContext()->isFunctionOrMethod()) { 7100df9587ab011c12968fcbe3518666b2117afe350John McCall if (const FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) { 71110aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth if (Function->isInAnonymousNamespace() && !Function->isExternC()) 712af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::uniqueExternal(); 7131fb0caaa7bef765b85972274e3b434af2572c141John McCall 714af14603ca61757cf4361b583b45639a04c57e651John McCall LinkageInfo LV; 715381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (Flags.ConsiderVisibilityAttributes) { 716381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (const VisibilityAttr *VA = GetExplicitVisibility(Function)) 717381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.setVisibility(GetVisibilityFromAttr(VA)); 718381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor } 719381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 7201fb0caaa7bef765b85972274e3b434af2572c141John McCall if (const FunctionDecl *Prev = Function->getPreviousDeclaration()) { 721381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo PrevLV = getLVForDecl(Prev, Flags); 722af14603ca61757cf4361b583b45639a04c57e651John McCall if (PrevLV.linkage()) LV.setLinkage(PrevLV.linkage()); 723af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(PrevLV); 7241fb0caaa7bef765b85972274e3b434af2572c141John McCall } 7250b6bc8bd7a1d2a7d7478d13d78cff94cacad61fcDouglas Gregor 7261fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 727d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 728d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 7290df9587ab011c12968fcbe3518666b2117afe350John McCall if (const VarDecl *Var = dyn_cast<VarDecl>(D)) 730d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (Var->getStorageClass() == SC_Extern || 731d931b086984257de68868a64a235c2b4b34003fbJohn McCall Var->getStorageClass() == SC_PrivateExtern) { 73210aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth if (Var->isInAnonymousNamespace() && !Var->isExternC()) 733af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::uniqueExternal(); 7341fb0caaa7bef765b85972274e3b434af2572c141John McCall 735af14603ca61757cf4361b583b45639a04c57e651John McCall LinkageInfo LV; 7361fb0caaa7bef765b85972274e3b434af2572c141John McCall if (Var->getStorageClass() == SC_PrivateExtern) 737af14603ca61757cf4361b583b45639a04c57e651John McCall LV.setVisibility(HiddenVisibility); 738381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor else if (Flags.ConsiderVisibilityAttributes) { 739381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (const VisibilityAttr *VA = GetExplicitVisibility(Var)) 740381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LV.setVisibility(GetVisibilityFromAttr(VA)); 741381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor } 742381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 7431fb0caaa7bef765b85972274e3b434af2572c141John McCall if (const VarDecl *Prev = Var->getPreviousDeclaration()) { 744381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor LinkageInfo PrevLV = getLVForDecl(Prev, Flags); 745af14603ca61757cf4361b583b45639a04c57e651John McCall if (PrevLV.linkage()) LV.setLinkage(PrevLV.linkage()); 746af14603ca61757cf4361b583b45639a04c57e651John McCall LV.mergeVisibility(PrevLV); 7471fb0caaa7bef765b85972274e3b434af2572c141John McCall } 7481fb0caaa7bef765b85972274e3b434af2572c141John McCall 7491fb0caaa7bef765b85972274e3b434af2572c141John McCall return LV; 750d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 751d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor } 752d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 753d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // C++ [basic.link]p6: 754d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor // Names not covered by these rules have no linkage. 755af14603ca61757cf4361b583b45639a04c57e651John McCall return LinkageInfo::none(); 7561fb0caaa7bef765b85972274e3b434af2572c141John McCall} 757d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor 75847b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregorstd::string NamedDecl::getQualifiedNameAsString() const { 7593a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson return getQualifiedNameAsString(getASTContext().getLangOptions()); 7603a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson} 7613a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 7623a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlssonstd::string NamedDecl::getQualifiedNameAsString(const PrintingPolicy &P) const { 76347b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor const DeclContext *Ctx = getDeclContext(); 76447b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor 76547b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor if (Ctx->isFunctionOrMethod()) 76647b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor return getNameAsString(); 76747b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor 76868eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer typedef llvm::SmallVector<const DeclContext *, 8> ContextsTy; 76968eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer ContextsTy Contexts; 77068eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer 77168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer // Collect contexts. 77268eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer while (Ctx && isa<NamedDecl>(Ctx)) { 77368eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer Contexts.push_back(Ctx); 77468eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer Ctx = Ctx->getParent(); 77568eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer }; 77668eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer 77768eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer std::string QualName; 77868eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer llvm::raw_string_ostream OS(QualName); 77968eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer 78068eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer for (ContextsTy::reverse_iterator I = Contexts.rbegin(), E = Contexts.rend(); 78168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer I != E; ++I) { 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (const ClassTemplateSpecializationDecl *Spec 78368eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer = dyn_cast<ClassTemplateSpecializationDecl>(*I)) { 784f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor const TemplateArgumentList &TemplateArgs = Spec->getTemplateArgs(); 785f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor std::string TemplateArgsStr 786f3e7ce4bd9837cdab6a096235922865f95467d3dDouglas Gregor = TemplateSpecializationType::PrintTemplateArgumentList( 787910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgs.data(), 788910f8008fea79120489a53593fe971b0b8a4a740Douglas Gregor TemplateArgs.size(), 7893a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson P); 79068eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << Spec->getName() << TemplateArgsStr; 79168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer } else if (const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(*I)) { 7926be112049b24ffaa8508646aa695834b4b5ca2b2Sam Weinig if (ND->isAnonymousNamespace()) 79368eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << "<anonymous namespace>"; 7946be112049b24ffaa8508646aa695834b4b5ca2b2Sam Weinig else 79568eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << ND; 79668eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer } else if (const RecordDecl *RD = dyn_cast<RecordDecl>(*I)) { 79768eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer if (!RD->getIdentifier()) 79868eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << "<anonymous " << RD->getKindName() << '>'; 79968eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer else 80068eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << RD; 80168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer } else if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*I)) { 8023521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig const FunctionProtoType *FT = 0; 8033521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig if (FD->hasWrittenPrototype()) 8043521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig FT = dyn_cast<FunctionProtoType>(FD->getType()->getAs<FunctionType>()); 8053521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig 80668eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << FD << '('; 8073521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig if (FT) { 8083521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig unsigned NumParams = FD->getNumParams(); 8093521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig for (unsigned i = 0; i < NumParams; ++i) { 8103521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig if (i) 81168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << ", "; 8123521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig std::string Param; 8133521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig FD->getParamDecl(i)->getType().getAsStringInternal(Param, P); 81468eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << Param; 8153521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig } 8163521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig 8173521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig if (FT->isVariadic()) { 8183521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig if (NumParams > 0) 81968eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << ", "; 82068eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << "..."; 8213521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig } 8223521d01aed2f55b66c7ce2ad47541a9974079699Sam Weinig } 82368eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << ')'; 82468eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer } else { 82568eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << cast<NamedDecl>(*I); 82668eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer } 82768eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << "::"; 82847b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor } 82947b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor 8308472af4df9292e02fb25c952d25a81f3ca296252John McCall if (getDeclName()) 83168eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << this; 8328472af4df9292e02fb25c952d25a81f3ca296252John McCall else 83368eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer OS << "<anonymous>"; 83447b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor 83568eebbb6279cf5d5133963b1474f0765c589cf3aBenjamin Kramer return OS.str(); 83647b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor} 83747b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor 8384afa39deaa245592977136d367251ee2c173dd8dDouglas Gregorbool NamedDecl::declarationReplaces(NamedDecl *OldD) const { 8396ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor assert(getDeclName() == OldD->getDeclName() && "Declaration name mismatch"); 8406ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor 8412a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor // UsingDirectiveDecl's are not really NamedDecl's, and all have same name. 8422a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor // We want to keep it, unless it nominates same namespace. 8432a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor if (getKind() == Decl::UsingDirective) { 844db9924191092b4d426cc066637d81698211846aaDouglas Gregor return cast<UsingDirectiveDecl>(this)->getNominatedNamespace() 845db9924191092b4d426cc066637d81698211846aaDouglas Gregor ->getOriginalNamespace() == 846db9924191092b4d426cc066637d81698211846aaDouglas Gregor cast<UsingDirectiveDecl>(OldD)->getNominatedNamespace() 847db9924191092b4d426cc066637d81698211846aaDouglas Gregor ->getOriginalNamespace(); 8482a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor } 8491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8506ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(this)) 8516ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor // For function declarations, we keep track of redeclarations. 8526ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor return FD->getPreviousDeclaration() == OldD; 8536ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor 854e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor // For function templates, the underlying function declarations are linked. 855e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (const FunctionTemplateDecl *FunctionTemplate 856e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor = dyn_cast<FunctionTemplateDecl>(this)) 857e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor if (const FunctionTemplateDecl *OldFunctionTemplate 858e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor = dyn_cast<FunctionTemplateDecl>(OldD)) 859e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor return FunctionTemplate->getTemplatedDecl() 860e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor ->declarationReplaces(OldFunctionTemplate->getTemplatedDecl()); 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8620de21fd85d79bccd32f04256f5b3328ab5ed7c95Steve Naroff // For method declarations, we keep track of redeclarations. 8630de21fd85d79bccd32f04256f5b3328ab5ed7c95Steve Naroff if (isa<ObjCMethodDecl>(this)) 8640de21fd85d79bccd32f04256f5b3328ab5ed7c95Steve Naroff return false; 8651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 866f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall if (isa<ObjCInterfaceDecl>(this) && isa<ObjCCompatibleAliasDecl>(OldD)) 867f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall return true; 868f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall 8699488ea120e093068021f944176c3d610dd540914John McCall if (isa<UsingShadowDecl>(this) && isa<UsingShadowDecl>(OldD)) 8709488ea120e093068021f944176c3d610dd540914John McCall return cast<UsingShadowDecl>(this)->getTargetDecl() == 8719488ea120e093068021f944176c3d610dd540914John McCall cast<UsingShadowDecl>(OldD)->getTargetDecl(); 8729488ea120e093068021f944176c3d610dd540914John McCall 873dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor if (isa<UsingDecl>(this) && isa<UsingDecl>(OldD)) { 874dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor ASTContext &Context = getASTContext(); 875dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor return Context.getCanonicalNestedNameSpecifier( 876dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor cast<UsingDecl>(this)->getQualifier()) == 877dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor Context.getCanonicalNestedNameSpecifier( 878dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor cast<UsingDecl>(OldD)->getQualifier()); 879dc355713be51fcb4ee52d9fd6b4548ceff47fadfDouglas Gregor } 880c80117e7971c34088f3e254c849ec3a40205d2c3Argyrios Kyrtzidis 8816ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor // For non-function declarations, if the declarations are of the 8826ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor // same kind then this must be a redeclaration, or semantic analysis 8836ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor // would not have given us the new declaration. 8846ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor return this->getKind() == OldD->getKind(); 8856ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor} 8866ed40e351a7c1fb3084434f1db19216b79623cf0Douglas Gregor 887d6f7e9dccd0fa8a5a15d7478324c0ae229fc5e1eDouglas Gregorbool NamedDecl::hasLinkage() const { 888d85b5b9b8fcf53906d9a61649b3657ca0d902017Douglas Gregor return getLinkage() != NoLinkage; 889d6f7e9dccd0fa8a5a15d7478324c0ae229fc5e1eDouglas Gregor} 8904afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 891e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders CarlssonNamedDecl *NamedDecl::getUnderlyingDecl() { 892e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson NamedDecl *ND = this; 893e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson while (true) { 8949488ea120e093068021f944176c3d610dd540914John McCall if (UsingShadowDecl *UD = dyn_cast<UsingShadowDecl>(ND)) 895e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson ND = UD->getTargetDecl(); 896e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson else if (ObjCCompatibleAliasDecl *AD 897e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson = dyn_cast<ObjCCompatibleAliasDecl>(ND)) 898e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson return AD->getClassInterface(); 899e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson else 900e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson return ND; 901e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson } 902e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson} 903e136e0e1b74760d7ec3ede38e0e739d5c52a3c0aAnders Carlsson 904161755a09898c95d21bfff33707da9ca41cd53c5John McCallbool NamedDecl::isCXXInstanceMember() const { 905161755a09898c95d21bfff33707da9ca41cd53c5John McCall assert(isCXXClassMember() && 906161755a09898c95d21bfff33707da9ca41cd53c5John McCall "checking whether non-member is instance member"); 907161755a09898c95d21bfff33707da9ca41cd53c5John McCall 908161755a09898c95d21bfff33707da9ca41cd53c5John McCall const NamedDecl *D = this; 909161755a09898c95d21bfff33707da9ca41cd53c5John McCall if (isa<UsingShadowDecl>(D)) 910161755a09898c95d21bfff33707da9ca41cd53c5John McCall D = cast<UsingShadowDecl>(D)->getTargetDecl(); 911161755a09898c95d21bfff33707da9ca41cd53c5John McCall 91287c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet if (isa<FieldDecl>(D) || isa<IndirectFieldDecl>(D)) 913161755a09898c95d21bfff33707da9ca41cd53c5John McCall return true; 914161755a09898c95d21bfff33707da9ca41cd53c5John McCall if (isa<CXXMethodDecl>(D)) 915161755a09898c95d21bfff33707da9ca41cd53c5John McCall return cast<CXXMethodDecl>(D)->isInstance(); 916161755a09898c95d21bfff33707da9ca41cd53c5John McCall if (isa<FunctionTemplateDecl>(D)) 917161755a09898c95d21bfff33707da9ca41cd53c5John McCall return cast<CXXMethodDecl>(cast<FunctionTemplateDecl>(D) 918161755a09898c95d21bfff33707da9ca41cd53c5John McCall ->getTemplatedDecl())->isInstance(); 919161755a09898c95d21bfff33707da9ca41cd53c5John McCall return false; 920161755a09898c95d21bfff33707da9ca41cd53c5John McCall} 921161755a09898c95d21bfff33707da9ca41cd53c5John McCall 9225239304ff761b8b03eefb772bd5d830a9b9f1aeaArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 923a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis// DeclaratorDecl Implementation 924a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis//===----------------------------------------------------------------------===// 925a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis 9261693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregortemplate <typename DeclT> 9271693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregorstatic SourceLocation getTemplateOrInnerLocStart(const DeclT *decl) { 9281693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor if (decl->getNumTemplateParameterLists() > 0) 9291693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return decl->getTemplateParameterList(0)->getTemplateLoc(); 9301693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor else 9311693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return decl->getInnerLocStart(); 9321693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor} 9331693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor 934a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios KyrtzidisSourceLocation DeclaratorDecl::getTypeSpecStartLoc() const { 9354e449836c0deee9cfd92d32cb7d843759fa6452bJohn McCall TypeSourceInfo *TSI = getTypeSourceInfo(); 9364e449836c0deee9cfd92d32cb7d843759fa6452bJohn McCall if (TSI) return TSI->getTypeLoc().getBeginLoc(); 937a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis return SourceLocation(); 938a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis} 939a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis 940c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregorvoid DeclaratorDecl::setQualifierInfo(NestedNameSpecifierLoc QualifierLoc) { 941c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 942b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Make sure the extended decl info is allocated. 943b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (!hasExtInfo()) { 944b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Save (non-extended) type source info pointer. 945b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall TypeSourceInfo *savedTInfo = DeclInfo.get<TypeSourceInfo*>(); 946b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Allocate external info struct. 947b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall DeclInfo = new (getASTContext()) ExtInfo; 948b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Restore savedTInfo into (extended) decl info. 949b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall getExtInfo()->TInfo = savedTInfo; 950b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 951b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Set qualifier info. 952c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor getExtInfo()->QualifierLoc = QualifierLoc; 953b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 954b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall else { 955b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Here Qualifier == 0, i.e., we are removing the qualifier (if any). 956b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (hasExtInfo()) { 957b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Save type source info pointer. 958b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall TypeSourceInfo *savedTInfo = getExtInfo()->TInfo; 959b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Deallocate the extended decl info. 960b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall getASTContext().Deallocate(getExtInfo()); 961b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Restore savedTInfo into (non-extended) decl info. 962b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall DeclInfo = savedTInfo; 963b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 964b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 965b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall} 966b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 9671693e154bef16ca060b5e3786d8528ddc11f5637Douglas GregorSourceLocation DeclaratorDecl::getOuterLocStart() const { 9681693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return getTemplateOrInnerLocStart(this); 9691693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor} 9701693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor 9719b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnaravoid 972c722ea4fbf886d6460b256b5e819a4ee751d5fffDouglas GregorQualifierInfo::setTemplateParameterListsInfo(ASTContext &Context, 973c722ea4fbf886d6460b256b5e819a4ee751d5fffDouglas Gregor unsigned NumTPLists, 9749b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara TemplateParameterList **TPLists) { 9759b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara assert((NumTPLists == 0 || TPLists != 0) && 9769b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara "Empty array of template parameters with positive size!"); 977c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor assert((NumTPLists == 0 || QualifierLoc) && 9789b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara "Nonempty array of template parameters with no qualifier!"); 9799b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara 9809b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara // Free previous template parameters (if any). 9819b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara if (NumTemplParamLists > 0) { 982c722ea4fbf886d6460b256b5e819a4ee751d5fffDouglas Gregor Context.Deallocate(TemplParamLists); 9839b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara TemplParamLists = 0; 9849b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara NumTemplParamLists = 0; 9859b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara } 9869b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara // Set info on matched template parameter lists (if any). 9879b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara if (NumTPLists > 0) { 988c722ea4fbf886d6460b256b5e819a4ee751d5fffDouglas Gregor TemplParamLists = new (Context) TemplateParameterList*[NumTPLists]; 9899b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara NumTemplParamLists = NumTPLists; 9909b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara for (unsigned i = NumTPLists; i-- > 0; ) 9919b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara TemplParamLists[i] = TPLists[i]; 9929b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara } 9939b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara} 9949b9348889d85fc9daf943c64e3ac3fb021a4f028Abramo Bagnara 995a5d82000f7b173a0a5ce34dc8c09a03f98d9e439Argyrios Kyrtzidis//===----------------------------------------------------------------------===// 99699f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes// VarDecl Implementation 99799f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes//===----------------------------------------------------------------------===// 99899f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes 9997783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlconst char *VarDecl::getStorageClassSpecifierString(StorageClass SC) { 10007783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl switch (SC) { 1001d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_None: break; 1002d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_Auto: return "auto"; break; 1003d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_Extern: return "extern"; break; 1004d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_PrivateExtern: return "__private_extern__"; break; 1005d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_Register: return "register"; break; 1006d931b086984257de68868a64a235c2b4b34003fbJohn McCall case SC_Static: return "static"; break; 10077783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 10087783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10097783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert(0 && "Invalid storage class"); 10107783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return 0; 10117783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 10127783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10134afa39deaa245592977136d367251ee2c173dd8dDouglas GregorVarDecl *VarDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L, 1014a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo, 101516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor StorageClass S, StorageClass SCAsWritten) { 101616573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor return new (C) VarDecl(Var, DC, L, Id, T, TInfo, S, SCAsWritten); 101799f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes} 101899f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes 1019381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregorvoid VarDecl::setStorageClass(StorageClass SC) { 1020381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor assert(isLegalForVariable(SC)); 1021381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (getStorageClass() != SC) 1022381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor ClearLinkageCache(); 1023381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 1024381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor SClass = SC; 1025381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor} 1026381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 1027da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas GregorSourceLocation VarDecl::getInnerLocStart() const { 1028da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor SourceLocation Start = getTypeSpecStartLoc(); 1029da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor if (Start.isInvalid()) 1030da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor Start = getLocation(); 1031da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor return Start; 1032da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor} 1033da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor 10341693e154bef16ca060b5e3786d8528ddc11f5637Douglas GregorSourceRange VarDecl::getSourceRange() const { 103555d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis if (getInit()) 10361693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return SourceRange(getOuterLocStart(), getInit()->getLocEnd()); 10371693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return SourceRange(getOuterLocStart(), getLocation()); 103855d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis} 103955d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis 10407783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlbool VarDecl::isExternC() const { 10417783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl ASTContext &Context = getASTContext(); 10427783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (!Context.getLangOptions().CPlusPlus) 10437783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return (getDeclContext()->isTranslationUnit() && 1044d931b086984257de68868a64a235c2b4b34003fbJohn McCall getStorageClass() != SC_Static) || 10457783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl (getDeclContext()->isFunctionOrMethod() && hasExternalStorage()); 10467783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 104710aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth const DeclContext *DC = getDeclContext(); 104810aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth if (DC->isFunctionOrMethod()) 104910aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth return false; 105010aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth 105110aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth for (; !DC->isTranslationUnit(); DC = DC->getParent()) { 10527783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (const LinkageSpecDecl *Linkage = dyn_cast<LinkageSpecDecl>(DC)) { 10537783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (Linkage->getLanguage() == LinkageSpecDecl::lang_c) 1054d931b086984257de68868a64a235c2b4b34003fbJohn McCall return getStorageClass() != SC_Static; 10557783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10567783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl break; 10577783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 10587783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10597783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 10607783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10617783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return false; 10627783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 10637783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 10647783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlVarDecl *VarDecl::getCanonicalDecl() { 10657783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return getFirstDeclaration(); 10667783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 10677783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 1068e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian RedlVarDecl::DefinitionKind VarDecl::isThisDeclarationADefinition() const { 1069e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // C++ [basic.def]p2: 1070e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // A declaration is a definition unless [...] it contains the 'extern' 1071e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // specifier or a linkage-specification and neither an initializer [...], 1072e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // it declares a static data member in a class declaration [...]. 1073e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // C++ [temp.expl.spec]p15: 1074e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // An explicit specialization of a static data member of a template is a 1075e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // definition if the declaration includes an initializer; otherwise, it is 1076e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // a declaration. 1077e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (isStaticDataMember()) { 1078e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (isOutOfLine() && (hasInit() || 1079e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl getTemplateSpecializationKind() != TSK_ExplicitSpecialization)) 1080e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return Definition; 1081e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl else 1082e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return DeclarationOnly; 1083e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl } 1084e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // C99 6.7p5: 1085e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // A definition of an identifier is a declaration for that identifier that 1086e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // [...] causes storage to be reserved for that object. 1087e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // Note: that applies for all non-file-scope objects. 1088e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // C99 6.9.2p1: 1089e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // If the declaration of an identifier for an object has file scope and an 1090e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // initializer, the declaration is an external definition for the identifier 1091e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (hasInit()) 1092e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return Definition; 1093e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // AST for 'extern "C" int foo;' is annotated with 'extern'. 1094e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (hasExternalStorage()) 1095e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return DeclarationOnly; 10962bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian 1097d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (getStorageClassAsWritten() == SC_Extern || 1098d931b086984257de68868a64a235c2b4b34003fbJohn McCall getStorageClassAsWritten() == SC_PrivateExtern) { 10992bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian for (const VarDecl *PrevVar = getPreviousDeclaration(); 11002bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian PrevVar; PrevVar = PrevVar->getPreviousDeclaration()) { 11012bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian if (PrevVar->getLinkage() == InternalLinkage && PrevVar->hasInit()) 11022bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian return DeclarationOnly; 11032bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian } 11042bf6d7b1f7406ca4dfe841d4f6ef4b91dce195e4Fariborz Jahanian } 1105e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // C99 6.9.2p2: 1106e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // A declaration of an object that has file scope without an initializer, 1107e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // and without a storage class specifier or the scs 'static', constitutes 1108e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // a tentative definition. 1109e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // No such thing in C++. 1110e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (!getASTContext().getLangOptions().CPlusPlus && isFileVarDecl()) 1111e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return TentativeDefinition; 1112e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1113e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // What's left is (in C, block-scope) declarations without initializers or 1114e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl // external storage. These are definitions. 1115e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return Definition; 1116e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl} 1117e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1118e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian RedlVarDecl *VarDecl::getActingDefinition() { 1119e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl DefinitionKind Kind = isThisDeclarationADefinition(); 1120e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (Kind != TentativeDefinition) 1121e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return 0; 1122e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1123f0ed9ef428a051bafc914b9935dcd1d1aa30cf3fChris Lattner VarDecl *LastTentative = 0; 1124e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl VarDecl *First = getFirstDeclaration(); 1125e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl for (redecl_iterator I = First->redecls_begin(), E = First->redecls_end(); 1126e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl I != E; ++I) { 1127e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl Kind = (*I)->isThisDeclarationADefinition(); 1128e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (Kind == Definition) 1129e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return 0; 1130e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl else if (Kind == TentativeDefinition) 1131e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl LastTentative = *I; 1132e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl } 1133e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return LastTentative; 1134e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl} 1135e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1136e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redlbool VarDecl::isTentativeDefinitionNow() const { 1137e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl DefinitionKind Kind = isThisDeclarationADefinition(); 1138e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (Kind != TentativeDefinition) 1139e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return false; 1140e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1141e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl for (redecl_iterator I = redecls_begin(), E = redecls_end(); I != E; ++I) { 1142e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if ((*I)->isThisDeclarationADefinition() == Definition) 1143e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl return false; 1144e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl } 114531310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl return true; 114631310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl} 114731310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl 114831310a21fb2a9f13950f864f681c86080b05d5b2Sebastian RedlVarDecl *VarDecl::getDefinition() { 1149e2c52d29e483b4167bd5d8e3265c2fb7c38fbcd5Sebastian Redl VarDecl *First = getFirstDeclaration(); 1150e2c52d29e483b4167bd5d8e3265c2fb7c38fbcd5Sebastian Redl for (redecl_iterator I = First->redecls_begin(), E = First->redecls_end(); 1151e2c52d29e483b4167bd5d8e3265c2fb7c38fbcd5Sebastian Redl I != E; ++I) { 115231310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl if ((*I)->isThisDeclarationADefinition() == Definition) 115331310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl return *I; 115431310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl } 115531310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl return 0; 1156e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl} 1157e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl 1158110e8e56af30363072c140285961592b0107f789John McCallVarDecl::DefinitionKind VarDecl::hasDefinition() const { 1159110e8e56af30363072c140285961592b0107f789John McCall DefinitionKind Kind = DeclarationOnly; 1160110e8e56af30363072c140285961592b0107f789John McCall 1161110e8e56af30363072c140285961592b0107f789John McCall const VarDecl *First = getFirstDeclaration(); 1162110e8e56af30363072c140285961592b0107f789John McCall for (redecl_iterator I = First->redecls_begin(), E = First->redecls_end(); 1163110e8e56af30363072c140285961592b0107f789John McCall I != E; ++I) 1164110e8e56af30363072c140285961592b0107f789John McCall Kind = std::max(Kind, (*I)->isThisDeclarationADefinition()); 1165110e8e56af30363072c140285961592b0107f789John McCall 1166110e8e56af30363072c140285961592b0107f789John McCall return Kind; 1167110e8e56af30363072c140285961592b0107f789John McCall} 1168110e8e56af30363072c140285961592b0107f789John McCall 116931310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redlconst Expr *VarDecl::getAnyInitializer(const VarDecl *&D) const { 11707783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl redecl_iterator I = redecls_begin(), E = redecls_end(); 11717783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl while (I != E && !I->getInit()) 11727783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl ++I; 11737783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 11747783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (I != E) { 117531310a21fb2a9f13950f864f681c86080b05d5b2Sebastian Redl D = *I; 11767783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return I->getInit(); 11777783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 11787783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return 0; 11797783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 11807783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 11811028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregorbool VarDecl::isOutOfLine() const { 1182da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor if (Decl::isOutOfLine()) 11831028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor return true; 11848761d680eaa7386e03f51286f4b84a1ffe575e2eChandler Carruth 11858761d680eaa7386e03f51286f4b84a1ffe575e2eChandler Carruth if (!isStaticDataMember()) 11868761d680eaa7386e03f51286f4b84a1ffe575e2eChandler Carruth return false; 11878761d680eaa7386e03f51286f4b84a1ffe575e2eChandler Carruth 11881028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor // If this static data member was instantiated from a static data member of 11891028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor // a class template, check whether that static data member was defined 11901028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor // out-of-line. 11911028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor if (VarDecl *VD = getInstantiatedFromStaticDataMember()) 11921028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor return VD->isOutOfLine(); 11931028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor 11941028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor return false; 11951028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor} 11961028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas Gregor 11970d03514da06dffb39a260a1228ea3fd01d196fa4Douglas GregorVarDecl *VarDecl::getOutOfLineDefinition() { 11980d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor if (!isStaticDataMember()) 11990d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor return 0; 12000d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor 12010d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor for (VarDecl::redecl_iterator RD = redecls_begin(), RDEnd = redecls_end(); 12020d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor RD != RDEnd; ++RD) { 12030d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor if (RD->getLexicalDeclContext()->isFileContext()) 12040d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor return *RD; 12050d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor } 12060d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor 12070d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor return 0; 12080d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor} 12090d03514da06dffb39a260a1228ea3fd01d196fa4Douglas Gregor 1210838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregorvoid VarDecl::setInit(Expr *I) { 12117783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (EvaluatedStmt *Eval = Init.dyn_cast<EvaluatedStmt *>()) { 12127783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl Eval->~EvaluatedStmt(); 1213838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor getASTContext().Deallocate(Eval); 12147783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 12157783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12167783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl Init = I; 12177783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 12187783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12191028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas GregorVarDecl *VarDecl::getInstantiatedFromStaticDataMember() const { 1220b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo()) 1221251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return cast<VarDecl>(MSI->getInstantiatedFrom()); 1222251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 1223251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return 0; 1224251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor} 1225251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 1226663b5a0be7261c29bc4c526a71cffcfa02d4153eDouglas GregorTemplateSpecializationKind VarDecl::getTemplateSpecializationKind() const { 1227e9d12b6c50c1e9b05443db099e21026c5991a93bSebastian Redl if (MemberSpecializationInfo *MSI = getMemberSpecializationInfo()) 1228251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return MSI->getTemplateSpecializationKind(); 1229251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 1230251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor return TSK_Undeclared; 1231251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor} 1232251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor 12331028c9f0afc1cc5f4951b39b7067fa57c1fea07bDouglas GregorMemberSpecializationInfo *VarDecl::getMemberSpecializationInfo() const { 1234b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor return getASTContext().getInstantiatedFromStaticDataMember(this); 1235b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor} 1236b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor 12370a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregorvoid VarDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK, 12380a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor SourceLocation PointOfInstantiation) { 1239b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor MemberSpecializationInfo *MSI = getMemberSpecializationInfo(); 1240251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor assert(MSI && "Not an instantiated static data member?"); 1241251b4ff2578e26959a4c036140ccd61c5e9292f2Douglas Gregor MSI->setTemplateSpecializationKind(TSK); 12420a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor if (TSK != TSK_ExplicitSpecialization && 12430a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor PointOfInstantiation.isValid() && 12440a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor MSI->getPointOfInstantiation().isInvalid()) 12450a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor MSI->setPointOfInstantiation(PointOfInstantiation); 12467caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor} 12477caa6825f42a0f7e97d6fc06233133c42b218e46Douglas Gregor 12487783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 12497783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl// ParmVarDecl Implementation 12507783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 1251275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor 12527783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlParmVarDecl *ParmVarDecl::Create(ASTContext &C, DeclContext *DC, 12537783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl SourceLocation L, IdentifierInfo *Id, 12547783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl QualType T, TypeSourceInfo *TInfo, 125516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor StorageClass S, StorageClass SCAsWritten, 125616573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor Expr *DefArg) { 125716573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor return new (C) ParmVarDecl(ParmVar, DC, L, Id, T, TInfo, 125816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor S, SCAsWritten, DefArg); 1259275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor} 1260275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor 12617783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlExpr *ParmVarDecl::getDefaultArg() { 12627783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert(!hasUnparsedDefaultArg() && "Default argument is not yet parsed!"); 12637783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert(!hasUninstantiatedDefaultArg() && 12647783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl "Default argument is not yet instantiated!"); 12657783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12667783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl Expr *Arg = getInit(); 12674765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall if (ExprWithCleanups *E = dyn_cast_or_null<ExprWithCleanups>(Arg)) 12687783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return E->getSubExpr(); 12697783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12707783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return Arg; 12717783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 12727783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12737783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlunsigned ParmVarDecl::getNumDefaultArgTemporaries() const { 12744765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall if (const ExprWithCleanups *E = dyn_cast<ExprWithCleanups>(getInit())) 12757783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return E->getNumTemporaries(); 1276275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor 1277c37929c9e0dba89770dc5f0fbcfa0c9046da0b06Argyrios Kyrtzidis return 0; 1278275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor} 1279275a369f003f25bd22c00c1c0fc0251c7208caf4Douglas Gregor 12807783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlCXXTemporary *ParmVarDecl::getDefaultArgTemporary(unsigned i) { 12817783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert(getNumDefaultArgTemporaries() && 12827783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl "Default arguments does not have any temporaries!"); 12837783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12844765fa05b5652fcc4356371c2f481d0ea9a1b007John McCall ExprWithCleanups *E = cast<ExprWithCleanups>(getInit()); 12857783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return E->getTemporary(i); 12867783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 12877783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12887783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlSourceRange ParmVarDecl::getDefaultArgRange() const { 12897783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (const Expr *E = getInit()) 12907783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return E->getSourceRange(); 12917783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12927783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (hasUninstantiatedDefaultArg()) 12937783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return getUninstantiatedDefaultArg()->getSourceRange(); 12947783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 12957783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return SourceRange(); 1296fc7e2a8fbb08f0f496ac6cea0721fe72db8ce240Argyrios Kyrtzidis} 1297fc7e2a8fbb08f0f496ac6cea0721fe72db8ce240Argyrios Kyrtzidis 12981fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregorbool ParmVarDecl::isParameterPack() const { 12991fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregor return isa<PackExpansionType>(getType()); 13001fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregor} 13011fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregor 130299f06ba988922ea721035a89e6d3c66ba100ba8aNuno Lopes//===----------------------------------------------------------------------===// 13038a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner// FunctionDecl Implementation 13048a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner//===----------------------------------------------------------------------===// 13058a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner 1306da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregorvoid FunctionDecl::getNameForDiagnostic(std::string &S, 1307da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor const PrintingPolicy &Policy, 1308da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor bool Qualified) const { 1309da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor NamedDecl::getNameForDiagnostic(S, Policy, Qualified); 1310da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor const TemplateArgumentList *TemplateArgs = getTemplateSpecializationArgs(); 1311da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor if (TemplateArgs) 1312da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor S += TemplateSpecializationType::PrintTemplateArgumentList( 1313da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor TemplateArgs->data(), 1314da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor TemplateArgs->size(), 1315da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor Policy); 1316da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor 1317da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor} 1318da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor 13199498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenekbool FunctionDecl::isVariadic() const { 13209498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenek if (const FunctionProtoType *FT = getType()->getAs<FunctionProtoType>()) 13219498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenek return FT->isVariadic(); 13229498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenek return false; 13239498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenek} 13249498d388810d284d3970aef0d69fa4d069fd6cafTed Kremenek 132506a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidisbool FunctionDecl::hasBody(const FunctionDecl *&Definition) const { 132606a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis for (redecl_iterator I = redecls_begin(), E = redecls_end(); I != E; ++I) { 132706a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (I->Body) { 132806a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis Definition = *I; 132906a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis return true; 133006a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis } 133106a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis } 133206a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis 133306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis return false; 133406a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis} 133506a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis 13366fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios KyrtzidisStmt *FunctionDecl::getBody(const FunctionDecl *&Definition) const { 1337c37929c9e0dba89770dc5f0fbcfa0c9046da0b06Argyrios Kyrtzidis for (redecl_iterator I = redecls_begin(), E = redecls_end(); I != E; ++I) { 1338c37929c9e0dba89770dc5f0fbcfa0c9046da0b06Argyrios Kyrtzidis if (I->Body) { 1339c37929c9e0dba89770dc5f0fbcfa0c9046da0b06Argyrios Kyrtzidis Definition = *I; 1340c37929c9e0dba89770dc5f0fbcfa0c9046da0b06Argyrios Kyrtzidis return I->Body.get(getASTContext().getExternalSource()); 1341f009795057dc8ca254f5618c80a0a90f07cd44b4Douglas Gregor } 1342f009795057dc8ca254f5618c80a0a90f07cd44b4Douglas Gregor } 1343f009795057dc8ca254f5618c80a0a90f07cd44b4Douglas Gregor 1344f009795057dc8ca254f5618c80a0a90f07cd44b4Douglas Gregor return 0; 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 134755d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidisvoid FunctionDecl::setBody(Stmt *B) { 134855d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis Body = B; 1349b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor if (B) 135055d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis EndRangeLoc = B->getLocEnd(); 135155d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis} 135255d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis 13532138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregorvoid FunctionDecl::setPure(bool P) { 13542138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor IsPure = P; 13552138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor if (P) 13562138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor if (CXXRecordDecl *Parent = dyn_cast<CXXRecordDecl>(getDeclContext())) 13572138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor Parent->markedVirtualFunctionPure(); 13582138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor} 13592138664dd2cff39de52ff11ca35f653c20b2e4b0Douglas Gregor 136048a83b5e7ae4051c7c11680ac00c1fa02d610a62Douglas Gregorbool FunctionDecl::isMain() const { 136148a83b5e7ae4051c7c11680ac00c1fa02d610a62Douglas Gregor ASTContext &Context = getASTContext(); 136207a5c22bb6fb0674c95205ae189365bf8e1b695eJohn McCall return !Context.getLangOptions().Freestanding && 13637a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl getDeclContext()->getRedeclContext()->isTranslationUnit() && 136404495c859f81e440748a9b86baa2913461652bb0Douglas Gregor getIdentifier() && getIdentifier()->isStr("main"); 136504495c859f81e440748a9b86baa2913461652bb0Douglas Gregor} 136604495c859f81e440748a9b86baa2913461652bb0Douglas Gregor 136748a83b5e7ae4051c7c11680ac00c1fa02d610a62Douglas Gregorbool FunctionDecl::isExternC() const { 136848a83b5e7ae4051c7c11680ac00c1fa02d610a62Douglas Gregor ASTContext &Context = getASTContext(); 13696393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor // In C, any non-static, non-overloadable function has external 13706393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor // linkage. 13716393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor if (!Context.getLangOptions().CPlusPlus) 1372d931b086984257de68868a64a235c2b4b34003fbJohn McCall return getStorageClass() != SC_Static && !getAttr<OverloadableAttr>(); 13736393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor 137410aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth const DeclContext *DC = getDeclContext(); 137510aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth if (DC->isRecord()) 137610aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth return false; 137710aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth 137810aad449dfbb5b43611d45b99c88dfc26db7fac9Chandler Carruth for (; !DC->isTranslationUnit(); DC = DC->getParent()) { 13796393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor if (const LinkageSpecDecl *Linkage = dyn_cast<LinkageSpecDecl>(DC)) { 13806393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor if (Linkage->getLanguage() == LinkageSpecDecl::lang_c) 1381d931b086984257de68868a64a235c2b4b34003fbJohn McCall return getStorageClass() != SC_Static && 138240b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis !getAttr<OverloadableAttr>(); 13836393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor 13846393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor break; 13856393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor } 13866393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor } 13876393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor 13880bab54cf82cd679152197c7a2eb938f8aa9f07ddDouglas Gregor return isMain(); 13896393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor} 13906393519272ce727f4d26e71bbefb5de712274d0eDouglas Gregor 13918499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregorbool FunctionDecl::isGlobal() const { 13928499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor if (const CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(this)) 13938499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor return Method->isStatic(); 13948499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor 1395d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (getStorageClass() == SC_Static) 13968499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor return false; 13978499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor 13981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (const DeclContext *DC = getDeclContext(); 13998499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor DC->isNamespace(); 14008499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor DC = DC->getParent()) { 14018499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor if (const NamespaceDecl *Namespace = cast<NamespaceDecl>(DC)) { 14028499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor if (!Namespace->getDeclName()) 14038499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor return false; 14048499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor break; 14058499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor } 14068499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor } 14078499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor 14088499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor return true; 14098499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor} 14108499f3f5ff8d5f95ece8047780030a3daad1b6faDouglas Gregor 14117783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlvoid 14127783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlFunctionDecl::setPreviousDeclaration(FunctionDecl *PrevDecl) { 14137783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl redeclarable_base::setPreviousDeclaration(PrevDecl); 14147783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 14157783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (FunctionTemplateDecl *FunTmpl = getDescribedFunctionTemplate()) { 14167783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl FunctionTemplateDecl *PrevFunTmpl 14177783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl = PrevDecl? PrevDecl->getDescribedFunctionTemplate() : 0; 14187783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert((!PrevDecl || PrevFunTmpl) && "Function/function template mismatch"); 14197783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl FunTmpl->setPreviousDeclaration(PrevFunTmpl); 14207783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl } 14218f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor 14228f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor if (PrevDecl->IsInline) 14238f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor IsInline = true; 14247783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 14257783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 14267783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlconst FunctionDecl *FunctionDecl::getCanonicalDecl() const { 14277783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return getFirstDeclaration(); 14287783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 14297783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 14307783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlFunctionDecl *FunctionDecl::getCanonicalDecl() { 14317783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return getFirstDeclaration(); 14327783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 14337783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 1434381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregorvoid FunctionDecl::setStorageClass(StorageClass SC) { 1435381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor assert(isLegalForFunction(SC)); 1436381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor if (getStorageClass() != SC) 1437381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor ClearLinkageCache(); 1438381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 1439381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor SClass = SC; 1440381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor} 1441381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor 14423e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// \brief Returns a value indicating whether this function 14433e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// corresponds to a builtin function. 14443e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// 14453e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// The function corresponds to a built-in function if it is 14463e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// declared at translation scope or within an extern "C" block and 14473e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// its name matches with the name of a builtin. The returned value 14483e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// will be 0 for functions that do not correspond to a builtin, a 14491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// value of type \c Builtin::ID if in the target-independent range 14503e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor/// \c [1,Builtin::First), or a target-specific builtin value. 14517814e6d6645d587891293d59ecf6576defcfac92Douglas Gregorunsigned FunctionDecl::getBuiltinID() const { 14527814e6d6645d587891293d59ecf6576defcfac92Douglas Gregor ASTContext &Context = getASTContext(); 14533c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor if (!getIdentifier() || !getIdentifier()->getBuiltinID()) 14543c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor return 0; 14553c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor 14563c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned BuiltinID = getIdentifier()->getBuiltinID(); 14573c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor if (!Context.BuiltinInfo.isPredefinedLibFunction(BuiltinID)) 14583c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor return BuiltinID; 14593c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor 14603c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // This function has the name of a known C library 14613c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // function. Determine whether it actually refers to the C library 14623c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // function or whether it just has the same name. 14633c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor 14649add31798f621f843233dbff8bba103fca64447bDouglas Gregor // If this is a static function, it's not a builtin. 1465d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (getStorageClass() == SC_Static) 14669add31798f621f843233dbff8bba103fca64447bDouglas Gregor return 0; 14679add31798f621f843233dbff8bba103fca64447bDouglas Gregor 14683c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // If this function is at translation-unit scope and we're not in 14693c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // C++, it refers to the C library function. 14703c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor if (!Context.getLangOptions().CPlusPlus && 14713c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor getDeclContext()->isTranslationUnit()) 14723c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor return BuiltinID; 14733c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor 14743c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // If the function is in an extern "C" linkage specification and is 14753c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // not marked "overloadable", it's the real function. 14763c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor if (isa<LinkageSpecDecl>(getDeclContext()) && 14771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump cast<LinkageSpecDecl>(getDeclContext())->getLanguage() 14783c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor == LinkageSpecDecl::lang_c && 147940b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis !getAttr<OverloadableAttr>()) 14803c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor return BuiltinID; 14813c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor 14823c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor // Not a builtin 14833e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor return 0; 14843e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor} 14853e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor 14863e41d60eb627dc227c770f1c1c87d06909cf05fdDouglas Gregor 14871ad9b28e3217c2349a04f3d3bf14f9c73a99afa7Chris Lattner/// getNumParams - Return the number of parameters this function must have 14888dbfbf4c95251c69a455d4d016d6c7890c932007Bob Wilson/// based on its FunctionType. This is the length of the ParamInfo array 14891ad9b28e3217c2349a04f3d3bf14f9c73a99afa7Chris Lattner/// after it has been created. 14901ad9b28e3217c2349a04f3d3bf14f9c73a99afa7Chris Lattnerunsigned FunctionDecl::getNumParams() const { 1491183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = getType()->getAs<FunctionType>(); 149272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (isa<FunctionNoProtoType>(FT)) 1493d3b9065ec7052ec4741783d2fb4130d13c766933Chris Lattner return 0; 149472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FT)->getNumArgs(); 14951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14986b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidisvoid FunctionDecl::setParams(ASTContext &C, 14996b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidis ParmVarDecl **NewParamInfo, unsigned NumParams) { 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(ParamInfo == 0 && "Already has param info!"); 15012dbd285f5033ca6dea25babfd1c43d9fec35e7e5Chris Lattner assert(NumParams == getNumParams() && "Parameter count mismatch!"); 15021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Zero params -> null pointer. 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (NumParams) { 15056b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidis void *Mem = C.Allocate(sizeof(ParmVarDecl*)*NumParams); 1506fc767615bc67d3a7587b1fb2e0494c32c9dbd7a5Ted Kremenek ParamInfo = new (Mem) ParmVarDecl*[NumParams]; 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer memcpy(ParamInfo, NewParamInfo, sizeof(ParmVarDecl*)*NumParams); 150855d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis 150996888cc2515e55c9b5dd6798063bf4be2c22983aArgyrios Kyrtzidis // Update source range. The check below allows us to set EndRangeLoc before 151096888cc2515e55c9b5dd6798063bf4be2c22983aArgyrios Kyrtzidis // setting the parameters. 1511cb5f8f59322c352f51714c3de5d8047e70895165Argyrios Kyrtzidis if (EndRangeLoc.isInvalid() || EndRangeLoc == getLocation()) 151255d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis EndRangeLoc = NewParamInfo[NumParams-1]->getLocEnd(); 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15168123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner/// getMinRequiredArguments - Returns the minimum number of arguments 15178123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner/// needed to call this function. This may be fewer than the number of 15188123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner/// function parameters, if some of the parameters have default 1519f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor/// arguments (in C++) or the last parameter is a parameter pack. 15208123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattnerunsigned FunctionDecl::getMinRequiredArguments() const { 15217d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor if (!getASTContext().getLangOptions().CPlusPlus) 15227d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor return getNumParams(); 15237d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor 1524f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor unsigned NumRequiredArgs = getNumParams(); 1525f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor 1526f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor // If the last parameter is a parameter pack, we don't need an argument for 1527f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor // it. 1528f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor if (NumRequiredArgs > 0 && 1529f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor getParamDecl(NumRequiredArgs - 1)->isParameterPack()) 1530f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor --NumRequiredArgs; 1531f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor 1532f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor // If this parameter has a default argument, we don't need an argument for 1533f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor // it. 1534f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor while (NumRequiredArgs > 0 && 1535f5c65ffbd7374b6c8d9f1e361041578640cab320Douglas Gregor getParamDecl(NumRequiredArgs-1)->hasDefaultArg()) 15368123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner --NumRequiredArgs; 15378123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner 15387d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor // We might have parameter packs before the end. These can't be deduced, 15397d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor // but they can still handle multiple arguments. 15407d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor unsigned ArgIdx = NumRequiredArgs; 15417d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor while (ArgIdx > 0) { 15427d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor if (getParamDecl(ArgIdx - 1)->isParameterPack()) 15437d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor NumRequiredArgs = ArgIdx; 15447d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor 15457d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor --ArgIdx; 15467d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor } 15477d5c0c1273bdc1cb3dff1cb5a62d07b1439e82c7Douglas Gregor 15488123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner return NumRequiredArgs; 15498123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner} 15508123a95c33b792d35c2e4992ba6e27882748fb0dChris Lattner 15517ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregorbool FunctionDecl::isInlined() const { 15528f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor if (IsInline) 15537d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor return true; 155448eda2c5d6d2a5c95775a1a3a8a22428bb6869c6Anders Carlsson 155548eda2c5d6d2a5c95775a1a3a8a22428bb6869c6Anders Carlsson if (isa<CXXMethodDecl>(this)) { 155648eda2c5d6d2a5c95775a1a3a8a22428bb6869c6Anders Carlsson if (!isOutOfLine() || getCanonicalDecl()->isInlineSpecified()) 155748eda2c5d6d2a5c95775a1a3a8a22428bb6869c6Anders Carlsson return true; 155848eda2c5d6d2a5c95775a1a3a8a22428bb6869c6Anders Carlsson } 15597d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor 15607d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor switch (getTemplateSpecializationKind()) { 15617d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor case TSK_Undeclared: 15627d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor case TSK_ExplicitSpecialization: 15637d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor return false; 15647d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor 15657d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor case TSK_ImplicitInstantiation: 15667d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor case TSK_ExplicitInstantiationDeclaration: 15677d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor case TSK_ExplicitInstantiationDefinition: 15687d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor // Handle below. 15697d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor break; 15707d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor } 15717d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor 15727d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor const FunctionDecl *PatternDecl = getTemplateInstantiationPattern(); 157306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis bool HasPattern = false; 15747d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor if (PatternDecl) 157506a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis HasPattern = PatternDecl->hasBody(PatternDecl); 15767d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor 157706a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (HasPattern && PatternDecl) 15787d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor return PatternDecl->isInlined(); 15797d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor 15807d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor return false; 15817ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor} 15827ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor 15837d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor/// \brief For an inline function definition in C or C++, determine whether the 15841fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// definition will be externally visible. 15851fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// 15861fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// Inline function definitions are always available for inlining optimizations. 15871fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// However, depending on the language dialect, declaration specifiers, and 15881fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// attributes, the definition of an inline function may or may not be 15891fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// "externally" visible to other translation units in the program. 15901fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// 15911fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// In C99, inline definitions are not externally visible by default. However, 15921e5fd7f8e90e0953e5c59cbbbc130633d84a1e37Mike Stump/// if even one of the global-scope declarations is marked "extern inline", the 15931fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// inline definition becomes externally visible (C99 6.7.4p6). 15941fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// 15951fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// In GNU89 mode, or if the gnu_inline attribute is attached to the function 15961fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// definition, we use the GNU semantics for inline, which are nearly the 15971fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// opposite of C99 semantics. In particular, "inline" by itself will create 15981fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// an externally visible symbol, but "extern inline" will not create an 15991fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor/// externally visible symbol. 16001fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregorbool FunctionDecl::isInlineDefinitionExternallyVisible() const { 16011fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor assert(isThisDeclarationADefinition() && "Must have the function definition"); 16027ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor assert(isInlined() && "Function must be inline"); 16037d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor ASTContext &Context = getASTContext(); 16041fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor 16057d9c3c92c90ae36d58ec21bc53c4c08e02ac3555Douglas Gregor if (!Context.getLangOptions().C99 || hasAttr<GNUInlineAttr>()) { 16068f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor // If it's not the case that both 'inline' and 'extern' are 16078f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor // specified on the definition, then this inline definition is 16088f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor // externally visible. 16098f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor if (!(isInlineSpecified() && getStorageClassAsWritten() == SC_Extern)) 16108f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor return true; 16118f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor 16128f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor // If any declaration is 'inline' but not 'extern', then this definition 16138f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor // is externally visible. 16141fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor for (redecl_iterator Redecl = redecls_begin(), RedeclEnd = redecls_end(); 16151fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor Redecl != RedeclEnd; 16161fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor ++Redecl) { 16178f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor if (Redecl->isInlineSpecified() && 16188f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor Redecl->getStorageClassAsWritten() != SC_Extern) 16191fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor return true; 16208f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor } 16211fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor 16229f9bf258f8ebae30bfb70feb9d797d6eb67b0460Douglas Gregor return false; 16231fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor } 16241fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor 16251fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // C99 6.7.4p6: 16261fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // [...] If all of the file scope declarations for a function in a 16271fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // translation unit include the inline function specifier without extern, 16281fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // then the definition in that translation unit is an inline definition. 16291fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor for (redecl_iterator Redecl = redecls_begin(), RedeclEnd = redecls_end(); 16301fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor Redecl != RedeclEnd; 16311fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor ++Redecl) { 16321fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // Only consider file-scope declarations in this test. 16331fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor if (!Redecl->getLexicalDeclContext()->isTranslationUnit()) 16341fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor continue; 16351fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor 1636d931b086984257de68868a64a235c2b4b34003fbJohn McCall if (!Redecl->isInlineSpecified() || Redecl->getStorageClass() == SC_Extern) 16371fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor return true; // Not an inline definition 16381fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor } 16391fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor 16401fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // C99 6.7.4p6: 16411fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // An inline definition does not provide an external definition for the 16421fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // function, and does not forbid an external definition in another 16431fc09a92d0bffda20e06fa882388c01e192e2069Douglas Gregor // translation unit. 16449f9bf258f8ebae30bfb70feb9d797d6eb67b0460Douglas Gregor return false; 16459f9bf258f8ebae30bfb70feb9d797d6eb67b0460Douglas Gregor} 16469f9bf258f8ebae30bfb70feb9d797d6eb67b0460Douglas Gregor 16471cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// getOverloadedOperator - Which C++ overloaded operator this 16481cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// function represents, if any. 16491cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas GregorOverloadedOperatorKind FunctionDecl::getOverloadedOperator() const { 1650e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor if (getDeclName().getNameKind() == DeclarationName::CXXOperatorName) 1651e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return getDeclName().getCXXOverloadedOperator(); 16521cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor else 16531cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return OO_None; 16541cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 16551cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 1656a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt/// getLiteralIdentifier - The literal suffix identifier this function 1657a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt/// represents, if any. 1658a6c058dd75c5563cced821fc16766a7cc179e00cSean Huntconst IdentifierInfo *FunctionDecl::getLiteralIdentifier() const { 1659a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt if (getDeclName().getNameKind() == DeclarationName::CXXLiteralOperatorName) 1660a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt return getDeclName().getCXXLiteralIdentifier(); 1661a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt else 1662a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt return 0; 1663a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt} 1664a6c058dd75c5563cced821fc16766a7cc179e00cSean Hunt 1665d0913557c800c8a712fb554032a833619f23bc56Argyrios KyrtzidisFunctionDecl::TemplatedKind FunctionDecl::getTemplatedKind() const { 1666d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis if (TemplateOrSpecialization.isNull()) 1667d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_NonTemplate; 1668d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis if (TemplateOrSpecialization.is<FunctionTemplateDecl *>()) 1669d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_FunctionTemplate; 1670d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis if (TemplateOrSpecialization.is<MemberSpecializationInfo *>()) 1671d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_MemberSpecialization; 1672d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis if (TemplateOrSpecialization.is<FunctionTemplateSpecializationInfo *>()) 1673d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_FunctionTemplateSpecialization; 1674d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis if (TemplateOrSpecialization.is 1675d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis <DependentFunctionTemplateSpecializationInfo*>()) 1676d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_DependentFunctionTemplateSpecialization; 1677d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis 1678d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis assert(false && "Did we miss a TemplateOrSpecialization type?"); 1679d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis return TK_NonTemplate; 1680d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis} 1681d0913557c800c8a712fb554032a833619f23bc56Argyrios Kyrtzidis 16822db323294ac02296125e1e0beb4c3595992e75bbDouglas GregorFunctionDecl *FunctionDecl::getInstantiatedFromMemberFunction() const { 1683b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor if (MemberSpecializationInfo *Info = getMemberSpecializationInfo()) 16842db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor return cast<FunctionDecl>(Info->getInstantiatedFrom()); 16852db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor 16862db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor return 0; 16872db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor} 16882db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor 1689b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas GregorMemberSpecializationInfo *FunctionDecl::getMemberSpecializationInfo() const { 1690b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor return TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>(); 1691b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor} 1692b3ae4fcd4314a9c1c46d41b200883599c32025b4Douglas Gregor 16932db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregorvoid 16946b5415196327fa8ef00f028ba175fafef1738ae1Argyrios KyrtzidisFunctionDecl::setInstantiationOfMemberFunction(ASTContext &C, 16956b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidis FunctionDecl *FD, 16962db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor TemplateSpecializationKind TSK) { 16972db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor assert(TemplateOrSpecialization.isNull() && 16982db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor "Member function is already a specialization"); 16992db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor MemberSpecializationInfo *Info 17006b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidis = new (C) MemberSpecializationInfo(FD, TSK); 17012db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor TemplateOrSpecialization = Info; 17022db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor} 17032db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor 17043b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregorbool FunctionDecl::isImplicitlyInstantiable() const { 17056cfacfe54c75baa4d67f1fbdf4f80644b662818eDouglas Gregor // If the function is invalid, it can't be implicitly instantiated. 17066cfacfe54c75baa4d67f1fbdf4f80644b662818eDouglas Gregor if (isInvalidDecl()) 17073b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return false; 17083b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17093b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor switch (getTemplateSpecializationKind()) { 17103b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor case TSK_Undeclared: 17113b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor case TSK_ExplicitSpecialization: 17123b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor case TSK_ExplicitInstantiationDefinition: 17133b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return false; 17143b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17153b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor case TSK_ImplicitInstantiation: 17163b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return true; 17173b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17183b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor case TSK_ExplicitInstantiationDeclaration: 17193b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // Handled below. 17203b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor break; 17213b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor } 17223b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17233b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // Find the actual template from which we will instantiate. 17243b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor const FunctionDecl *PatternDecl = getTemplateInstantiationPattern(); 172506a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis bool HasPattern = false; 17263b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor if (PatternDecl) 172706a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis HasPattern = PatternDecl->hasBody(PatternDecl); 17283b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17293b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // C++0x [temp.explicit]p9: 17303b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // Except for inline functions, other explicit instantiation declarations 17313b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // have the effect of suppressing the implicit instantiation of the entity 17323b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // to which they refer. 173306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (!HasPattern || !PatternDecl) 17343b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return true; 17353b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17367ced9c8529b734e313f62a3b81189d6f402f6713Douglas Gregor return PatternDecl->isInlined(); 17373b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor} 17383b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17393b846b6c252972a6f142aa226c1e65aebd0feecaDouglas GregorFunctionDecl *FunctionDecl::getTemplateInstantiationPattern() const { 17403b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor if (FunctionTemplateDecl *Primary = getPrimaryTemplate()) { 17413b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor while (Primary->getInstantiatedFromMemberTemplate()) { 17423b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // If we have hit a point where the user provided a specialization of 17433b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor // this template, we're done looking. 17443b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor if (Primary->isMemberSpecialization()) 17453b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor break; 17463b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17473b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor Primary = Primary->getInstantiatedFromMemberTemplate(); 17483b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor } 17493b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17503b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return Primary->getTemplatedDecl(); 17513b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor } 17523b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 17533b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor return getInstantiatedFromMemberFunction(); 17543b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor} 17553b846b6c252972a6f142aa226c1e65aebd0feecaDouglas Gregor 175616e8be2ac532358d4e413fdfa2643b1876edda78Douglas GregorFunctionTemplateDecl *FunctionDecl::getPrimaryTemplate() const { 17571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionTemplateSpecializationInfo *Info 175816e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor = TemplateOrSpecialization 175916e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor .dyn_cast<FunctionTemplateSpecializationInfo*>()) { 17601fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor return Info->Template.getPointer(); 176116e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor } 176216e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor return 0; 176316e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor} 176416e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor 176516e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregorconst TemplateArgumentList * 176616e8be2ac532358d4e413fdfa2643b1876edda78Douglas GregorFunctionDecl::getTemplateSpecializationArgs() const { 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (FunctionTemplateSpecializationInfo *Info 1768fd056bc86a8b22a9421b5d921bbca276d0f9d0f7Douglas Gregor = TemplateOrSpecialization 1769fd056bc86a8b22a9421b5d921bbca276d0f9d0f7Douglas Gregor .dyn_cast<FunctionTemplateSpecializationInfo*>()) { 177016e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor return Info->TemplateArguments; 177116e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor } 177216e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor return 0; 177316e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor} 177416e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor 1775e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnaraconst TemplateArgumentListInfo * 1776e03db98d67111ebf7622d9086951aacc24406b66Abramo BagnaraFunctionDecl::getTemplateSpecializationArgsAsWritten() const { 1777e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara if (FunctionTemplateSpecializationInfo *Info 1778e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara = TemplateOrSpecialization 1779e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara .dyn_cast<FunctionTemplateSpecializationInfo*>()) { 1780e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara return Info->TemplateArgumentsAsWritten; 1781e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara } 1782e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara return 0; 1783e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara} 1784e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara 17851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 17866b5415196327fa8ef00f028ba175fafef1738ae1Argyrios KyrtzidisFunctionDecl::setFunctionTemplateSpecialization(ASTContext &C, 17876b5415196327fa8ef00f028ba175fafef1738ae1Argyrios Kyrtzidis FunctionTemplateDecl *Template, 1788127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor const TemplateArgumentList *TemplateArgs, 1789b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor void *InsertPos, 1790e03db98d67111ebf7622d9086951aacc24406b66Abramo Bagnara TemplateSpecializationKind TSK, 17917b081c8604efd33bc7f7e5c1e9427a031eedb2b4Argyrios Kyrtzidis const TemplateArgumentListInfo *TemplateArgsAsWritten, 17927b081c8604efd33bc7f7e5c1e9427a031eedb2b4Argyrios Kyrtzidis SourceLocation PointOfInstantiation) { 1793b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor assert(TSK != TSK_Undeclared && 1794b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor "Must specify the type of function template specialization"); 17951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FunctionTemplateSpecializationInfo *Info 179616e8be2ac532358d4e413fdfa2643b1876edda78Douglas Gregor = TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>(); 17971637be727f2a0434c1ed7aa385ea1c18328b0ccdDouglas Gregor if (!Info) 1798a626a3d0fb74455651f742c0938902a42e6e71c8Argyrios Kyrtzidis Info = FunctionTemplateSpecializationInfo::Create(C, this, Template, TSK, 1799a626a3d0fb74455651f742c0938902a42e6e71c8Argyrios Kyrtzidis TemplateArgs, 1800a626a3d0fb74455651f742c0938902a42e6e71c8Argyrios Kyrtzidis TemplateArgsAsWritten, 1801a626a3d0fb74455651f742c0938902a42e6e71c8Argyrios Kyrtzidis PointOfInstantiation); 18021637be727f2a0434c1ed7aa385ea1c18328b0ccdDouglas Gregor TemplateOrSpecialization = Info; 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1804127102b5196ffe04bdb70fd553fe62c265ab10a9Douglas Gregor // Insert this function template specialization into the set of known 1805b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor // function template specializations. 1806b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor if (InsertPos) 1807b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor Template->getSpecializations().InsertNode(Info, InsertPos); 1808b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor else { 18092c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis // Try to insert the new node. If there is an existing node, leave it, the 18102c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis // set will contain the canonical decls while 18112c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis // FunctionTemplateDecl::findSpecialization will return 18122c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis // the most recent redeclarations. 1813b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor FunctionTemplateSpecializationInfo *Existing 1814b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor = Template->getSpecializations().GetOrInsertNode(Info); 18152c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis (void)Existing; 18162c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis assert((!Existing || Existing->Function->isCanonicalDecl()) && 18172c853e401ca406d417eb916e867226050e7be06bArgyrios Kyrtzidis "Set is supposed to only contain canonical decls"); 1818b9aa6b214c8fbc3e081dde575eef1f0913d48bdcDouglas Gregor } 18191637be727f2a0434c1ed7aa385ea1c18328b0ccdDouglas Gregor} 18201637be727f2a0434c1ed7aa385ea1c18328b0ccdDouglas Gregor 1821af2094e7cecadf36667deb61a83587ffdd979bd3John McCallvoid 1822af2094e7cecadf36667deb61a83587ffdd979bd3John McCallFunctionDecl::setDependentTemplateSpecialization(ASTContext &Context, 1823af2094e7cecadf36667deb61a83587ffdd979bd3John McCall const UnresolvedSetImpl &Templates, 1824af2094e7cecadf36667deb61a83587ffdd979bd3John McCall const TemplateArgumentListInfo &TemplateArgs) { 1825af2094e7cecadf36667deb61a83587ffdd979bd3John McCall assert(TemplateOrSpecialization.isNull()); 1826af2094e7cecadf36667deb61a83587ffdd979bd3John McCall size_t Size = sizeof(DependentFunctionTemplateSpecializationInfo); 1827af2094e7cecadf36667deb61a83587ffdd979bd3John McCall Size += Templates.size() * sizeof(FunctionTemplateDecl*); 182821c0160959961b3a6ab3308608ee3fde182ecb49John McCall Size += TemplateArgs.size() * sizeof(TemplateArgumentLoc); 1829af2094e7cecadf36667deb61a83587ffdd979bd3John McCall void *Buffer = Context.Allocate(Size); 1830af2094e7cecadf36667deb61a83587ffdd979bd3John McCall DependentFunctionTemplateSpecializationInfo *Info = 1831af2094e7cecadf36667deb61a83587ffdd979bd3John McCall new (Buffer) DependentFunctionTemplateSpecializationInfo(Templates, 1832af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgs); 1833af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateOrSpecialization = Info; 1834af2094e7cecadf36667deb61a83587ffdd979bd3John McCall} 1835af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1836af2094e7cecadf36667deb61a83587ffdd979bd3John McCallDependentFunctionTemplateSpecializationInfo:: 1837af2094e7cecadf36667deb61a83587ffdd979bd3John McCallDependentFunctionTemplateSpecializationInfo(const UnresolvedSetImpl &Ts, 1838af2094e7cecadf36667deb61a83587ffdd979bd3John McCall const TemplateArgumentListInfo &TArgs) 1839af2094e7cecadf36667deb61a83587ffdd979bd3John McCall : AngleLocs(TArgs.getLAngleLoc(), TArgs.getRAngleLoc()) { 1840af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1841af2094e7cecadf36667deb61a83587ffdd979bd3John McCall d.NumTemplates = Ts.size(); 1842af2094e7cecadf36667deb61a83587ffdd979bd3John McCall d.NumArgs = TArgs.size(); 1843af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1844af2094e7cecadf36667deb61a83587ffdd979bd3John McCall FunctionTemplateDecl **TsArray = 1845af2094e7cecadf36667deb61a83587ffdd979bd3John McCall const_cast<FunctionTemplateDecl**>(getTemplates()); 1846af2094e7cecadf36667deb61a83587ffdd979bd3John McCall for (unsigned I = 0, E = Ts.size(); I != E; ++I) 1847af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TsArray[I] = cast<FunctionTemplateDecl>(Ts[I]->getUnderlyingDecl()); 1848af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1849af2094e7cecadf36667deb61a83587ffdd979bd3John McCall TemplateArgumentLoc *ArgsArray = 1850af2094e7cecadf36667deb61a83587ffdd979bd3John McCall const_cast<TemplateArgumentLoc*>(getTemplateArgs()); 1851af2094e7cecadf36667deb61a83587ffdd979bd3John McCall for (unsigned I = 0, E = TArgs.size(); I != E; ++I) 1852af2094e7cecadf36667deb61a83587ffdd979bd3John McCall new (&ArgsArray[I]) TemplateArgumentLoc(TArgs[I]); 1853af2094e7cecadf36667deb61a83587ffdd979bd3John McCall} 1854af2094e7cecadf36667deb61a83587ffdd979bd3John McCall 1855d0e3daf2b980b505e535d35b432c938c6d0208efDouglas GregorTemplateSpecializationKind FunctionDecl::getTemplateSpecializationKind() const { 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // For a function template specialization, query the specialization 1857d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor // information object. 18582db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor FunctionTemplateSpecializationInfo *FTSInfo 18591fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor = TemplateOrSpecialization.dyn_cast<FunctionTemplateSpecializationInfo*>(); 18602db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor if (FTSInfo) 18612db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor return FTSInfo->getTemplateSpecializationKind(); 1862d0e3daf2b980b505e535d35b432c938c6d0208efDouglas Gregor 18632db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor MemberSpecializationInfo *MSInfo 18642db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>(); 18652db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor if (MSInfo) 18662db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor return MSInfo->getTemplateSpecializationKind(); 18672db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor 18682db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor return TSK_Undeclared; 18691fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor} 18701fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor 18711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid 18720a897e32a09d290aa5b375444fe33928e47168bbDouglas GregorFunctionDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK, 18730a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor SourceLocation PointOfInstantiation) { 18742db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor if (FunctionTemplateSpecializationInfo *FTSInfo 18752db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor = TemplateOrSpecialization.dyn_cast< 18760a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor FunctionTemplateSpecializationInfo*>()) { 18772db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor FTSInfo->setTemplateSpecializationKind(TSK); 18780a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor if (TSK != TSK_ExplicitSpecialization && 18790a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor PointOfInstantiation.isValid() && 18800a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor FTSInfo->getPointOfInstantiation().isInvalid()) 18810a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor FTSInfo->setPointOfInstantiation(PointOfInstantiation); 18820a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor } else if (MemberSpecializationInfo *MSInfo 18830a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>()) { 18842db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor MSInfo->setTemplateSpecializationKind(TSK); 18850a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor if (TSK != TSK_ExplicitSpecialization && 18860a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor PointOfInstantiation.isValid() && 18870a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor MSInfo->getPointOfInstantiation().isInvalid()) 18880a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor MSInfo->setPointOfInstantiation(PointOfInstantiation); 18890a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor } else 18902db323294ac02296125e1e0beb4c3595992e75bbDouglas Gregor assert(false && "Function cannot have a template specialization kind"); 18911fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor} 18921fd2dd145d9bcdf0b8d60a88e1795b6ae83656f5Douglas Gregor 18930a897e32a09d290aa5b375444fe33928e47168bbDouglas GregorSourceLocation FunctionDecl::getPointOfInstantiation() const { 18940a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor if (FunctionTemplateSpecializationInfo *FTSInfo 18950a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor = TemplateOrSpecialization.dyn_cast< 18960a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor FunctionTemplateSpecializationInfo*>()) 18970a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor return FTSInfo->getPointOfInstantiation(); 18980a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor else if (MemberSpecializationInfo *MSInfo 18990a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor = TemplateOrSpecialization.dyn_cast<MemberSpecializationInfo*>()) 19000a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor return MSInfo->getPointOfInstantiation(); 19010a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor 19020a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor return SourceLocation(); 19030a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor} 19040a897e32a09d290aa5b375444fe33928e47168bbDouglas Gregor 19059f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregorbool FunctionDecl::isOutOfLine() const { 1906da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor if (Decl::isOutOfLine()) 19079f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor return true; 19089f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor 19099f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor // If this function was instantiated from a member function of a 19109f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor // class template, check whether that member function was defined out-of-line. 19119f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor if (FunctionDecl *FD = getInstantiatedFromMemberFunction()) { 19129f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor const FunctionDecl *Definition; 191306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (FD->hasBody(Definition)) 19149f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor return Definition->isOutOfLine(); 19159f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor } 19169f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor 19179f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor // If this function was instantiated from a function template, 19189f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor // check whether that function template was defined out-of-line. 19199f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor if (FunctionTemplateDecl *FunTmpl = getPrimaryTemplate()) { 19209f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor const FunctionDecl *Definition; 192106a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis if (FunTmpl->getTemplatedDecl()->hasBody(Definition)) 19229f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor return Definition->isOutOfLine(); 19239f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor } 19249f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor 19259f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor return false; 19269f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor} 19279f185076dc8b79c8240b20a8746da96beb3f147bDouglas Gregor 19288a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner//===----------------------------------------------------------------------===// 19297783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl// FieldDecl Implementation 19307783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 19317783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 19324ba2a17694148e16eaa8d3917f657ffcd3667be4Jay FoadFieldDecl *FieldDecl::Create(const ASTContext &C, DeclContext *DC, 19334ba2a17694148e16eaa8d3917f657ffcd3667be4Jay Foad SourceLocation L, IdentifierInfo *Id, QualType T, 19347783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl TypeSourceInfo *TInfo, Expr *BW, bool Mutable) { 19357783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) FieldDecl(Decl::Field, DC, L, Id, T, TInfo, BW, Mutable); 19367783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 19377783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 19387783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redlbool FieldDecl::isAnonymousStructOrUnion() const { 19397783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (!isImplicit() || getDeclName()) 19407783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return false; 19417783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 19427783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl if (const RecordType *Record = getType()->getAs<RecordType>()) 19437783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return Record->getDecl()->isAnonymousStructOrUnion(); 19447783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 19457783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return false; 19467783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 19477783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 1948ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCallunsigned FieldDecl::getFieldIndex() const { 1949ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall if (CachedFieldIndex) return CachedFieldIndex - 1; 1950ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall 1951ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall unsigned index = 0; 1952ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall RecordDecl::field_iterator 1953ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall i = getParent()->field_begin(), e = getParent()->field_end(); 1954ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall while (true) { 1955ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall assert(i != e && "failed to find field in parent!"); 1956ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall if (*i == this) 1957ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall break; 1958ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall 1959ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall ++i; 1960ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall ++index; 1961ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall } 1962ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall 1963ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall CachedFieldIndex = index + 1; 1964ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall return index; 1965ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall} 1966ba4f5d5754c8291690d01ca9581926673d69b24cJohn McCall 19677783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 1968bcbffc46f1ad3796c4582fa1e3a9113b5aa26061Douglas Gregor// TagDecl Implementation 19694b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek//===----------------------------------------------------------------------===// 19704b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 19711693e154bef16ca060b5e3786d8528ddc11f5637Douglas GregorSourceLocation TagDecl::getOuterLocStart() const { 19721693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return getTemplateOrInnerLocStart(this); 19731693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor} 19741693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor 1975f602c8b6ce1a269c0bf8b3f049e923f4ea5c18e2Argyrios KyrtzidisSourceRange TagDecl::getSourceRange() const { 1976f602c8b6ce1a269c0bf8b3f049e923f4ea5c18e2Argyrios Kyrtzidis SourceLocation E = RBraceLoc.isValid() ? RBraceLoc : getLocation(); 19771693e154bef16ca060b5e3786d8528ddc11f5637Douglas Gregor return SourceRange(getOuterLocStart(), E); 1978f602c8b6ce1a269c0bf8b3f049e923f4ea5c18e2Argyrios Kyrtzidis} 1979f602c8b6ce1a269c0bf8b3f049e923f4ea5c18e2Argyrios Kyrtzidis 1980b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios KyrtzidisTagDecl* TagDecl::getCanonicalDecl() { 19818e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor return getFirstDeclaration(); 1982b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis} 1983b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis 198460e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregorvoid TagDecl::setTypedefForAnonDecl(TypedefDecl *TDD) { 198560e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor TypedefDeclOrQualifier = TDD; 198660e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor if (TypeForDecl) 1987f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall const_cast<Type*>(TypeForDecl)->ClearLinkageCache(); 1988381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor ClearLinkageCache(); 198960e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor} 199060e7064d78f1a29cf969f255a19a9ae25e6bc128Douglas Gregor 19910b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregorvoid TagDecl::startDefinition() { 1992ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl IsBeingDefined = true; 199386ff308724171494395a840fd2efbe25e62f352eJohn McCall 199486ff308724171494395a840fd2efbe25e62f352eJohn McCall if (isa<CXXRecordDecl>(this)) { 199586ff308724171494395a840fd2efbe25e62f352eJohn McCall CXXRecordDecl *D = cast<CXXRecordDecl>(this); 199686ff308724171494395a840fd2efbe25e62f352eJohn McCall struct CXXRecordDecl::DefinitionData *Data = 199786ff308724171494395a840fd2efbe25e62f352eJohn McCall new (getASTContext()) struct CXXRecordDecl::DefinitionData(D); 19982243288c4826905b5a0837f6f21d9d821688652eJohn McCall for (redecl_iterator I = redecls_begin(), E = redecls_end(); I != E; ++I) 19992243288c4826905b5a0837f6f21d9d821688652eJohn McCall cast<CXXRecordDecl>(*I)->DefinitionData = Data; 200086ff308724171494395a840fd2efbe25e62f352eJohn McCall } 20010b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor} 20020b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor 20030b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregorvoid TagDecl::completeDefinition() { 20045cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall assert((!isa<CXXRecordDecl>(this) || 20055cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall cast<CXXRecordDecl>(this)->hasDefinition()) && 20065cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall "definition completed but not started"); 20075cfa011e61e14e6f2e1659047d809706c0e4c6a3John McCall 20080b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor IsDefinition = true; 2009ed48a8faa10b6750f334540711c7b3949bbfb3aeSebastian Redl IsBeingDefined = false; 2010565bf30bf5607b9740d288d8d9c45cf38ea75298Argyrios Kyrtzidis 2011565bf30bf5607b9740d288d8d9c45cf38ea75298Argyrios Kyrtzidis if (ASTMutationListener *L = getASTMutationListener()) 2012565bf30bf5607b9740d288d8d9c45cf38ea75298Argyrios Kyrtzidis L->CompletedTagDefinition(this); 20130b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor} 20140b7a158d120ac8d78c114a823e17eedfec6b6658Douglas Gregor 2015952b017601f9c82b51119c3a1600f1312a833db9Douglas GregorTagDecl* TagDecl::getDefinition() const { 20168e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor if (isDefinition()) 20178e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor return const_cast<TagDecl *>(this); 2018220a9c82dc76a83a7f930879bf176783866c0514Andrew Trick if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(this)) 2019220a9c82dc76a83a7f930879bf176783866c0514Andrew Trick return CXXRD->getDefinition(); 20201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (redecl_iterator R = redecls_begin(), REnd = redecls_end(); 20228e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor R != REnd; ++R) 20238e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor if (R->isDefinition()) 20248e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor return *R; 20251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20268e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor return 0; 20274b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek} 20284b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek 2029c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregorvoid TagDecl::setQualifierInfo(NestedNameSpecifierLoc QualifierLoc) { 2030c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor if (QualifierLoc) { 2031b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Make sure the extended qualifier info is allocated. 2032b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (!hasExtInfo()) 2033b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall TypedefDeclOrQualifier = new (getASTContext()) ExtInfo; 2034b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Set qualifier info. 2035c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor getExtInfo()->QualifierLoc = QualifierLoc; 2036b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2037b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall else { 2038b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall // Here Qualifier == 0, i.e., we are removing the qualifier (if any). 2039b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (hasExtInfo()) { 2040b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall getASTContext().Deallocate(getExtInfo()); 2041b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall TypedefDeclOrQualifier = (TypedefDecl*) 0; 2042b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2043b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2044b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall} 2045b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall 20464b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek//===----------------------------------------------------------------------===// 20477783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl// EnumDecl Implementation 20487783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 20497783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 20507783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlEnumDecl *EnumDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L, 20517783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl IdentifierInfo *Id, SourceLocation TKL, 2052a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara EnumDecl *PrevDecl, bool IsScoped, 2053a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara bool IsScopedUsingClassTag, bool IsFixed) { 20541274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor EnumDecl *Enum = new (C) EnumDecl(DC, L, Id, PrevDecl, TKL, 2055a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara IsScoped, IsScopedUsingClassTag, IsFixed); 20567783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl C.getTypeDeclType(Enum, PrevDecl); 20577783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return Enum; 20587783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 20597783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 2060b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios KyrtzidisEnumDecl *EnumDecl::Create(ASTContext &C, EmptyShell Empty) { 20611274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor return new (C) EnumDecl(0, SourceLocation(), 0, 0, SourceLocation(), 2062a88cefd266c428be33cc06f7e8b00ff8fc97c1ffAbramo Bagnara false, false, false); 2063b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis} 2064b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis 2065838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregorvoid EnumDecl::completeDefinition(QualType NewType, 20661b5a618c59025898806160ed5e7f0ff5bb79e482John McCall QualType NewPromotionType, 20671b5a618c59025898806160ed5e7f0ff5bb79e482John McCall unsigned NumPositiveBits, 20681b5a618c59025898806160ed5e7f0ff5bb79e482John McCall unsigned NumNegativeBits) { 20697783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl assert(!isDefinition() && "Cannot redefine enums!"); 20701274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor if (!IntegerType) 20711274ccd90aec0b205fc838c3d504821ccfb55482Douglas Gregor IntegerType = NewType.getTypePtr(); 20727783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl PromotionType = NewPromotionType; 20731b5a618c59025898806160ed5e7f0ff5bb79e482John McCall setNumPositiveBits(NumPositiveBits); 20741b5a618c59025898806160ed5e7f0ff5bb79e482John McCall setNumNegativeBits(NumNegativeBits); 20757783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl TagDecl::completeDefinition(); 20767783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 20777783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 20787783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 20798a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner// RecordDecl Implementation 20808a934233d1582b5bde9d270bc0705aa81e471a79Chris Lattner//===----------------------------------------------------------------------===// 20815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 208235bc0821c4f80041724cd4c5c4889b2581546a41Argyrios KyrtzidisRecordDecl::RecordDecl(Kind DK, TagKind TK, DeclContext *DC, SourceLocation L, 20838e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor IdentifierInfo *Id, RecordDecl *PrevDecl, 20848e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor SourceLocation TKL) 20858e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor : TagDecl(DK, TK, DC, L, Id, PrevDecl, TKL) { 20866359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek HasFlexibleArrayMember = false; 2087bcbffc46f1ad3796c4582fa1e3a9113b5aa26061Douglas Gregor AnonymousStructOrUnion = false; 2088082b02e8403d3ee9d2ded969fbe0e5d472f04cd8Fariborz Jahanian HasObjectMember = false; 2089eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis LoadedFieldsFromExternalStorage = false; 20906359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek assert(classof(static_cast<Decl*>(this)) && "Invalid Kind!"); 20916359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek} 20926359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek 20934ba2a17694148e16eaa8d3917f657ffcd3667be4Jay FoadRecordDecl *RecordDecl::Create(const ASTContext &C, TagKind TK, DeclContext *DC, 20944b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek SourceLocation L, IdentifierInfo *Id, 2095741dd9a7e1d63e4e385b657e4ce11c5d96d44f72Douglas Gregor SourceLocation TKL, RecordDecl* PrevDecl) { 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20978e9e9ef5348bce1a8f0741a5684fac3de9701c28Douglas Gregor RecordDecl* R = new (C) RecordDecl(Record, TK, DC, L, Id, PrevDecl, TKL); 20984b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek C.getTypeDeclType(R, PrevDecl); 20994b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek return R; 21006359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek} 21016359792ca92e7ca2f416cb804c6604358174e994Ted Kremenek 21024ba2a17694148e16eaa8d3917f657ffcd3667be4Jay FoadRecordDecl *RecordDecl::Create(const ASTContext &C, EmptyShell Empty) { 2103b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis return new (C) RecordDecl(Record, TTK_Struct, 0, SourceLocation(), 0, 0, 2104b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis SourceLocation()); 2105b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis} 2106b8b03e6df1cc89e701a809c6a47c41f31b7a9e50Argyrios Kyrtzidis 2107c9b5b4074bd73d4af76e69cccf8ecd365fdd1008Douglas Gregorbool RecordDecl::isInjectedClassName() const { 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return isImplicit() && getDeclName() && getDeclContext()->isRecord() && 2109c9b5b4074bd73d4af76e69cccf8ecd365fdd1008Douglas Gregor cast<RecordDecl>(getDeclContext())->getDeclName() == getDeclName(); 2110c9b5b4074bd73d4af76e69cccf8ecd365fdd1008Douglas Gregor} 2111c9b5b4074bd73d4af76e69cccf8ecd365fdd1008Douglas Gregor 2112eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios KyrtzidisRecordDecl::field_iterator RecordDecl::field_begin() const { 2113eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis if (hasExternalLexicalStorage() && !LoadedFieldsFromExternalStorage) 2114eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis LoadFieldsFromExternalStorage(); 2115eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2116eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis return field_iterator(decl_iterator(FirstDecl)); 2117eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis} 2118eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2119da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor/// completeDefinition - Notes that the definition of this type is now 2120da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor/// complete. 2121da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregorvoid RecordDecl::completeDefinition() { 2122da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor assert(!isDefinition() && "Cannot redefine record!"); 2123da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor TagDecl::completeDefinition(); 2124da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor} 2125da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor 2126eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidisvoid RecordDecl::LoadFieldsFromExternalStorage() const { 2127eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis ExternalASTSource *Source = getASTContext().getExternalSource(); 2128eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis assert(hasExternalLexicalStorage() && Source && "No external storage?"); 2129eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2130eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis // Notify that we have a RecordDecl doing some initialization. 2131eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis ExternalASTSource::Deserializing TheFields(Source); 2132eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2133eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis llvm::SmallVector<Decl*, 64> Decls; 2134eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis if (Source->FindExternalLexicalDeclsBy<FieldDecl>(this, Decls)) 2135eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis return; 2136eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2137eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis#ifndef NDEBUG 2138eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis // Check that all decls we got were FieldDecls. 2139eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis for (unsigned i=0, e=Decls.size(); i != e; ++i) 2140eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis assert(isa<FieldDecl>(Decls[i])); 2141eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis#endif 2142eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2143eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis LoadedFieldsFromExternalStorage = true; 2144eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2145eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis if (Decls.empty()) 2146eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis return; 2147eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 2148eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis llvm::tie(FirstDecl, LastDecl) = BuildDeclChain(Decls); 2149eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis} 2150eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 215156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff//===----------------------------------------------------------------------===// 215256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff// BlockDecl Implementation 215356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff//===----------------------------------------------------------------------===// 215456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2155838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregorvoid BlockDecl::setParams(ParmVarDecl **NewParamInfo, 2156e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff unsigned NParms) { 2157e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff assert(ParamInfo == 0 && "Already has param info!"); 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2159e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff // Zero params -> null pointer. 2160e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff if (NParms) { 2161e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff NumParams = NParms; 2162838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor void *Mem = getASTContext().Allocate(sizeof(ParmVarDecl*)*NumParams); 2163e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff ParamInfo = new (Mem) ParmVarDecl*[NumParams]; 2164e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff memcpy(ParamInfo, NewParamInfo, sizeof(ParmVarDecl*)*NumParams); 2165e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff } 2166e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff} 2167e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff 21686b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCallvoid BlockDecl::setCaptures(ASTContext &Context, 21696b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const Capture *begin, 21706b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall const Capture *end, 21716b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall bool capturesCXXThis) { 2172469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall CapturesCXXThis = capturesCXXThis; 2173469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall 2174469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall if (begin == end) { 21756b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall NumCaptures = 0; 21766b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall Captures = 0; 2177469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall return; 2178469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall } 2179469a1eb996e1cb0be54f9b210f836afbddcbb2ccJohn McCall 21806b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall NumCaptures = end - begin; 21816b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall 21826b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall // Avoid new Capture[] because we don't want to provide a default 21836b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall // constructor. 21846b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall size_t allocationSize = NumCaptures * sizeof(Capture); 21856b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall void *buffer = Context.Allocate(allocationSize, /*alignment*/sizeof(void*)); 21866b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall memcpy(buffer, begin, allocationSize); 21876b5a61b6dc400027fd793dcadceeb9da944a37eaJohn McCall Captures = static_cast<Capture*>(buffer); 2188e78b809bbcd92928a63da81f2cd843faad3e4dfdSteve Naroff} 21897783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 21902fcbceff97e065cff499e6cc563ca25c762bf547Douglas GregorSourceRange BlockDecl::getSourceRange() const { 21912fcbceff97e065cff499e6cc563ca25c762bf547Douglas Gregor return SourceRange(getLocation(), Body? Body->getLocEnd() : getLocation()); 21922fcbceff97e065cff499e6cc563ca25c762bf547Douglas Gregor} 21937783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 21947783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 21957783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl// Other Decl Allocation/Deallocation Method Implementations 21967783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl//===----------------------------------------------------------------------===// 21977783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 21987783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlTranslationUnitDecl *TranslationUnitDecl::Create(ASTContext &C) { 21997783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) TranslationUnitDecl(C); 22007783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22017783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 2202ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris LattnerLabelDecl *LabelDecl::Create(ASTContext &C, DeclContext *DC, 2203ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner SourceLocation L, IdentifierInfo *II) { 2204ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner return new (C) LabelDecl(DC, L, II, 0); 2205ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner} 2206ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner 2207ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner 22087783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlNamespaceDecl *NamespaceDecl::Create(ASTContext &C, DeclContext *DC, 22097783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl SourceLocation L, IdentifierInfo *Id) { 22107783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) NamespaceDecl(DC, L, Id); 22117783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22127783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 221306c919300ce39e50ed7f6dff5025c8ed96dcf221Douglas GregorNamespaceDecl *NamespaceDecl::getNextNamespace() { 221406c919300ce39e50ed7f6dff5025c8ed96dcf221Douglas Gregor return dyn_cast_or_null<NamespaceDecl>( 221506c919300ce39e50ed7f6dff5025c8ed96dcf221Douglas Gregor NextNamespace.get(getASTContext().getExternalSource())); 221606c919300ce39e50ed7f6dff5025c8ed96dcf221Douglas Gregor} 221706c919300ce39e50ed7f6dff5025c8ed96dcf221Douglas Gregor 22187783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlImplicitParamDecl *ImplicitParamDecl::Create(ASTContext &C, DeclContext *DC, 2219201e519ad9cc2863bc94cf799e407a81ed29181fJohn McCall SourceLocation loc, 2220201e519ad9cc2863bc94cf799e407a81ed29181fJohn McCall IdentifierInfo *name, 2221201e519ad9cc2863bc94cf799e407a81ed29181fJohn McCall QualType type) { 2222201e519ad9cc2863bc94cf799e407a81ed29181fJohn McCall return new (C) ImplicitParamDecl(DC, loc, name, type); 22237783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22247783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 22257783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlFunctionDecl *FunctionDecl::Create(ASTContext &C, DeclContext *DC, 22262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 22272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T, TypeSourceInfo *TInfo, 222816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor StorageClass S, StorageClass SCAsWritten, 22298f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor bool isInlineSpecified, 22308f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor bool hasWrittenPrototype) { 22312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara FunctionDecl *New = new (C) FunctionDecl(Function, DC, NameInfo, T, TInfo, 22328f1509446fc51db0473ea1241910c06353a153b8Douglas Gregor S, SCAsWritten, isInlineSpecified); 22337783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl New->HasWrittenPrototype = hasWrittenPrototype; 22347783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return New; 22357783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22367783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 22377783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlBlockDecl *BlockDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L) { 22387783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) BlockDecl(DC, L); 22397783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22407783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 22417783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlEnumConstantDecl *EnumConstantDecl::Create(ASTContext &C, EnumDecl *CD, 22427783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl SourceLocation L, 22437783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl IdentifierInfo *Id, QualType T, 22447783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl Expr *E, const llvm::APSInt &V) { 22457783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) EnumConstantDecl(CD, L, Id, T, E, V); 22467783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22477783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 2248d98114647e16796a976b04af79975b4f0eacf22bBenjamin KramerIndirectFieldDecl * 2249d98114647e16796a976b04af79975b4f0eacf22bBenjamin KramerIndirectFieldDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L, 2250d98114647e16796a976b04af79975b4f0eacf22bBenjamin Kramer IdentifierInfo *Id, QualType T, NamedDecl **CH, 2251d98114647e16796a976b04af79975b4f0eacf22bBenjamin Kramer unsigned CHS) { 225287c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet return new (C) IndirectFieldDecl(DC, L, Id, T, CH, CHS); 225387c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet} 225487c2e121cf0522fc266efe2922b58091cd2e0182Francois Pichet 22558e7139c9554230df64325f70fe202c83491ba7f5Douglas GregorSourceRange EnumConstantDecl::getSourceRange() const { 22568e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor SourceLocation End = getLocation(); 22578e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor if (Init) 22588e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor End = Init->getLocEnd(); 22598e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor return SourceRange(getLocation(), End); 22608e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor} 22618e7139c9554230df64325f70fe202c83491ba7f5Douglas Gregor 22627783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlTypedefDecl *TypedefDecl::Create(ASTContext &C, DeclContext *DC, 22637783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl SourceLocation L, IdentifierInfo *Id, 22647783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl TypeSourceInfo *TInfo) { 22657783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) TypedefDecl(DC, L, Id, TInfo); 22667783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 22677783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl 22687783bfc066776a63d6a2cd28329d4d149647bfdcSebastian RedlFileScopeAsmDecl *FileScopeAsmDecl::Create(ASTContext &C, DeclContext *DC, 22697783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl SourceLocation L, 22707783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl StringLiteral *Str) { 22717783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl return new (C) FileScopeAsmDecl(DC, L, Str); 22727783bfc066776a63d6a2cd28329d4d149647bfdcSebastian Redl} 2273