diff options
-rw-r--r-- | lib/AST/Decl.cpp | 313 | ||||
-rw-r--r-- | lib/AST/DeclBase.cpp | 325 |
2 files changed, 326 insertions, 312 deletions
diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp index 8d9913b1aa..8d68a58f8c 100644 --- a/lib/AST/Decl.cpp +++ b/lib/AST/Decl.cpp @@ -7,212 +7,16 @@ // //===----------------------------------------------------------------------===// // -// This file implements the Decl class and subclasses. +// This file implements the Decl subclasses. // //===----------------------------------------------------------------------===// #include "clang/AST/Decl.h" #include "clang/AST/ASTContext.h" -#include "clang/AST/Attr.h" -#include "clang/Basic/IdentifierTable.h" -#include "llvm/ADT/DenseMap.h" using namespace clang; //===----------------------------------------------------------------------===// -// Statistics -//===----------------------------------------------------------------------===// - -// temporary statistics gathering -static unsigned nFuncs = 0; -static unsigned nVars = 0; -static unsigned nParmVars = 0; -static unsigned nSUC = 0; -static unsigned nEnumConst = 0; -static unsigned nEnumDecls = 0; -static unsigned nNamespaces = 0; -static unsigned nTypedef = 0; -static unsigned nFieldDecls = 0; -static unsigned nInterfaceDecls = 0; -static unsigned nClassDecls = 0; -static unsigned nMethodDecls = 0; -static unsigned nProtocolDecls = 0; -static unsigned nForwardProtocolDecls = 0; -static unsigned nCategoryDecls = 0; -static unsigned nIvarDecls = 0; -static unsigned nObjCImplementationDecls = 0; -static unsigned nObjCCategoryImpl = 0; -static unsigned nObjCCompatibleAlias = 0; -static unsigned nObjCPropertyDecl = 0; -static unsigned nObjCPropertyImplDecl = 0; -static unsigned nLinkageSpecDecl = 0; -static unsigned nFileScopeAsmDecl = 0; - -static bool StatSwitch = false; - -// This keeps track of all decl attributes. Since so few decls have attrs, we -// keep them in a hash map instead of wasting space in the Decl class. -typedef llvm::DenseMap<const Decl*, Attr*> DeclAttrMapTy; - -static DeclAttrMapTy *DeclAttrs = 0; - -const char *Decl::getDeclKindName() const { - switch (DeclKind) { - default: assert(0 && "Unknown decl kind!"); - case Namespace: return "Namespace"; - case Typedef: return "Typedef"; - case Function: return "Function"; - case Var: return "Var"; - case ParmVar: return "ParmVar"; - case EnumConstant: return "EnumConstant"; - case ObjCIvar: return "ObjCIvar"; - case ObjCInterface: return "ObjCInterface"; - case ObjCClass: return "ObjCClass"; - case ObjCMethod: return "ObjCMethod"; - case ObjCProtocol: return "ObjCProtocol"; - case ObjCForwardProtocol: return "ObjCForwardProtocol"; - case Struct: return "Struct"; - case Union: return "Union"; - case Class: return "Class"; - case Enum: return "Enum"; - } -} - -bool Decl::CollectingStats(bool Enable) { - if (Enable) - StatSwitch = true; - return StatSwitch; -} - -void Decl::PrintStats() { - fprintf(stderr, "*** Decl Stats:\n"); - fprintf(stderr, " %d decls total.\n", - int(nFuncs+nVars+nParmVars+nFieldDecls+nSUC+ - nEnumDecls+nEnumConst+nTypedef+nInterfaceDecls+nClassDecls+ - nMethodDecls+nProtocolDecls+nCategoryDecls+nIvarDecls+ - nNamespaces)); - fprintf(stderr, " %d namespace decls, %d each (%d bytes)\n", - nNamespaces, (int)sizeof(NamespaceDecl), - int(nNamespaces*sizeof(NamespaceDecl))); - fprintf(stderr, " %d function decls, %d each (%d bytes)\n", - nFuncs, (int)sizeof(FunctionDecl), int(nFuncs*sizeof(FunctionDecl))); - fprintf(stderr, " %d variable decls, %d each (%d bytes)\n", - nVars, (int)sizeof(VarDecl), - int(nVars*sizeof(VarDecl))); - fprintf(stderr, " %d parameter variable decls, %d each (%d bytes)\n", - nParmVars, (int)sizeof(ParmVarDecl), - int(nParmVars*sizeof(ParmVarDecl))); - fprintf(stderr, " %d field decls, %d each (%d bytes)\n", - nFieldDecls, (int)sizeof(FieldDecl), - int(nFieldDecls*sizeof(FieldDecl))); - fprintf(stderr, " %d struct/union/class decls, %d each (%d bytes)\n", - nSUC, (int)sizeof(RecordDecl), - int(nSUC*sizeof(RecordDecl))); - fprintf(stderr, " %d enum decls, %d each (%d bytes)\n", - nEnumDecls, (int)sizeof(EnumDecl), - int(nEnumDecls*sizeof(EnumDecl))); - fprintf(stderr, " %d enum constant decls, %d each (%d bytes)\n", - nEnumConst, (int)sizeof(EnumConstantDecl), - int(nEnumConst*sizeof(EnumConstantDecl))); - fprintf(stderr, " %d typedef decls, %d each (%d bytes)\n", - nTypedef, (int)sizeof(TypedefDecl),int(nTypedef*sizeof(TypedefDecl))); - // Objective-C decls... - fprintf(stderr, " %d interface decls, %d each (%d bytes)\n", - nInterfaceDecls, (int)sizeof(ObjCInterfaceDecl), - int(nInterfaceDecls*sizeof(ObjCInterfaceDecl))); - fprintf(stderr, " %d instance variable decls, %d each (%d bytes)\n", - nIvarDecls, (int)sizeof(ObjCIvarDecl), - int(nIvarDecls*sizeof(ObjCIvarDecl))); - fprintf(stderr, " %d class decls, %d each (%d bytes)\n", - nClassDecls, (int)sizeof(ObjCClassDecl), - int(nClassDecls*sizeof(ObjCClassDecl))); - fprintf(stderr, " %d method decls, %d each (%d bytes)\n", - nMethodDecls, (int)sizeof(ObjCMethodDecl), - int(nMethodDecls*sizeof(ObjCMethodDecl))); - fprintf(stderr, " %d protocol decls, %d each (%d bytes)\n", - nProtocolDecls, (int)sizeof(ObjCProtocolDecl), - int(nProtocolDecls*sizeof(ObjCProtocolDecl))); - fprintf(stderr, " %d forward protocol decls, %d each (%d bytes)\n", - nForwardProtocolDecls, (int)sizeof(ObjCForwardProtocolDecl), - int(nForwardProtocolDecls*sizeof(ObjCForwardProtocolDecl))); - fprintf(stderr, " %d category decls, %d each (%d bytes)\n", - nCategoryDecls, (int)sizeof(ObjCCategoryDecl), - int(nCategoryDecls*sizeof(ObjCCategoryDecl))); - - fprintf(stderr, " %d class implementation decls, %d each (%d bytes)\n", - nObjCImplementationDecls, (int)sizeof(ObjCImplementationDecl), - int(nObjCImplementationDecls*sizeof(ObjCImplementationDecl))); - - fprintf(stderr, " %d class implementation decls, %d each (%d bytes)\n", - nObjCCategoryImpl, (int)sizeof(ObjCCategoryImplDecl), - int(nObjCCategoryImpl*sizeof(ObjCCategoryImplDecl))); - - fprintf(stderr, " %d compatibility alias decls, %d each (%d bytes)\n", - nObjCCompatibleAlias, (int)sizeof(ObjCCompatibleAliasDecl), - int(nObjCCompatibleAlias*sizeof(ObjCCompatibleAliasDecl))); - - fprintf(stderr, " %d property decls, %d each (%d bytes)\n", - nObjCPropertyDecl, (int)sizeof(ObjCPropertyDecl), - int(nObjCPropertyDecl*sizeof(ObjCPropertyDecl))); - - fprintf(stderr, " %d property implementation decls, %d each (%d bytes)\n", - nObjCPropertyImplDecl, (int)sizeof(ObjCPropertyImplDecl), - int(nObjCPropertyImplDecl*sizeof(ObjCPropertyImplDecl))); - - fprintf(stderr, "Total bytes = %d\n", - int(nFuncs*sizeof(FunctionDecl)+ - nVars*sizeof(VarDecl)+nParmVars*sizeof(ParmVarDecl)+ - nFieldDecls*sizeof(FieldDecl)+nSUC*sizeof(RecordDecl)+ - nEnumDecls*sizeof(EnumDecl)+nEnumConst*sizeof(EnumConstantDecl)+ - nTypedef*sizeof(TypedefDecl)+ - nInterfaceDecls*sizeof(ObjCInterfaceDecl)+ - nIvarDecls*sizeof(ObjCIvarDecl)+ - nClassDecls*sizeof(ObjCClassDecl)+ - nMethodDecls*sizeof(ObjCMethodDecl)+ - nProtocolDecls*sizeof(ObjCProtocolDecl)+ - nForwardProtocolDecls*sizeof(ObjCForwardProtocolDecl)+ - nCategoryDecls*sizeof(ObjCCategoryDecl)+ - nObjCImplementationDecls*sizeof(ObjCImplementationDecl)+ - nObjCCategoryImpl*sizeof(ObjCCategoryImplDecl)+ - nObjCCompatibleAlias*sizeof(ObjCCompatibleAliasDecl)+ - nObjCPropertyDecl*sizeof(ObjCPropertyDecl)+ - nObjCPropertyImplDecl*sizeof(ObjCPropertyImplDecl)+ - nLinkageSpecDecl*sizeof(LinkageSpecDecl)+ - nFileScopeAsmDecl*sizeof(FileScopeAsmDecl)+ - nNamespaces*sizeof(NamespaceDecl))); - -} - -void Decl::addDeclKind(Kind k) { - switch (k) { - case Namespace: nNamespaces++; break; - case Typedef: nTypedef++; break; - case Function: nFuncs++; break; - case Var: nVars++; break; - case ParmVar: nParmVars++; break; - case EnumConstant: nEnumConst++; break; - case Field: nFieldDecls++; break; - case Struct: case Union: case Class: nSUC++; break; - case Enum: nEnumDecls++; break; - case ObjCInterface: nInterfaceDecls++; break; - case ObjCClass: nClassDecls++; break; - case ObjCMethod: nMethodDecls++; break; - case ObjCProtocol: nProtocolDecls++; break; - case ObjCForwardProtocol: nForwardProtocolDecls++; break; - case ObjCCategory: nCategoryDecls++; break; - case ObjCIvar: nIvarDecls++; break; - case ObjCImplementation: nObjCImplementationDecls++; break; - case ObjCCategoryImpl: nObjCCategoryImpl++; break; - case ObjCCompatibleAlias: nObjCCompatibleAlias++; break; - case ObjCProperty: nObjCPropertyDecl++; break; - case ObjCPropertyImpl: nObjCPropertyImplDecl++; break; - case LinkageSpec: nLinkageSpecDecl++; break; - case FileScopeAsm: nFileScopeAsmDecl++; break; - case TranslationUnit: break; - } -} - -//===----------------------------------------------------------------------===// // Decl Allocation/Deallocation Method Implementations //===----------------------------------------------------------------------===// @@ -325,121 +129,6 @@ LinkageSpecDecl *LinkageSpecDecl::Create(ASTContext &C, } //===----------------------------------------------------------------------===// -// Decl Implementation -//===----------------------------------------------------------------------===// - -// Out-of-line virtual method providing a home for Decl. -Decl::~Decl() { - if (!HasAttrs) - return; - - DeclAttrMapTy::iterator it = DeclAttrs->find(this); - assert(it != DeclAttrs->end() && "No attrs found but HasAttrs is true!"); - - // release attributes. - delete it->second; - invalidateAttrs(); -} - -void Decl::addAttr(Attr *NewAttr) { - if (!DeclAttrs) - DeclAttrs = new DeclAttrMapTy(); - - Attr *&ExistingAttr = (*DeclAttrs)[this]; - - NewAttr->setNext(ExistingAttr); - ExistingAttr = NewAttr; - - HasAttrs = true; -} - -void Decl::invalidateAttrs() { - if (!HasAttrs) return; - - HasAttrs = false; - (*DeclAttrs)[this] = 0; - DeclAttrs->erase(this); - - if (DeclAttrs->empty()) { - delete DeclAttrs; - DeclAttrs = 0; - } -} - -const Attr *Decl::getAttrs() const { - if (!HasAttrs) - return 0; - - return (*DeclAttrs)[this]; -} - -void Decl::swapAttrs(Decl *RHS) { - bool HasLHSAttr = this->HasAttrs; - bool HasRHSAttr = RHS->HasAttrs; - - // Usually, neither decl has attrs, nothing to do. - if (!HasLHSAttr && !HasRHSAttr) return; - - // If 'this' has no attrs, swap the other way. - if (!HasLHSAttr) - return RHS->swapAttrs(this); - - // Handle the case when both decls have attrs. - if (HasRHSAttr) { - std::swap((*DeclAttrs)[this], (*DeclAttrs)[RHS]); - return; - } - - // Otherwise, LHS has an attr and RHS doesn't. - (*DeclAttrs)[RHS] = (*DeclAttrs)[this]; - (*DeclAttrs).erase(this); - this->HasAttrs = false; - RHS->HasAttrs = true; -} - - -void Decl::Destroy(ASTContext& C) { - - if (ScopedDecl* SD = dyn_cast<ScopedDecl>(this)) { - - // Observe the unrolled recursion. By setting N->NextDeclarator = 0x0 - // within the loop, only the Destroy method for the first ScopedDecl - // will deallocate all of the ScopedDecls in a chain. - - ScopedDecl* N = SD->getNextDeclarator(); - - while (N) { - ScopedDecl* Tmp = N->getNextDeclarator(); - N->NextDeclarator = 0x0; - N->Destroy(C); - N = Tmp; - } - } - - this->~Decl(); - C.getAllocator().Deallocate((void *)this); -} - -//===----------------------------------------------------------------------===// -// DeclContext Implementation -//===----------------------------------------------------------------------===// - -DeclContext *DeclContext::getParent() const { - if (ScopedDecl *SD = dyn_cast<ScopedDecl>(this)) - return SD->getDeclContext(); - else - return NULL; -} - -Decl *DeclContext::ToDecl (const DeclContext *D) { - return CastTo<Decl>(D); -} - -DeclContext *DeclContext::FromDecl (const Decl *D) { - return CastTo<DeclContext>(D); -} - -//===----------------------------------------------------------------------===// // NamedDecl Implementation //===----------------------------------------------------------------------===// diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp new file mode 100644 index 0000000000..fce1a3f7fd --- /dev/null +++ b/lib/AST/DeclBase.cpp @@ -0,0 +1,325 @@ +//===--- DeclBase.cpp - Declaration AST Node Implementation ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Decl and DeclContext classes.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/ASTContext.h"
+#include "llvm/ADT/DenseMap.h"
+using namespace clang;
+
+//===----------------------------------------------------------------------===//
+// Statistics
+//===----------------------------------------------------------------------===//
+
+// temporary statistics gathering
+static unsigned nFuncs = 0;
+static unsigned nVars = 0;
+static unsigned nParmVars = 0;
+static unsigned nSUC = 0;
+static unsigned nEnumConst = 0;
+static unsigned nEnumDecls = 0;
+static unsigned nNamespaces = 0;
+static unsigned nTypedef = 0;
+static unsigned nFieldDecls = 0;
+static unsigned nInterfaceDecls = 0;
+static unsigned nClassDecls = 0;
+static unsigned nMethodDecls = 0;
+static unsigned nProtocolDecls = 0;
+static unsigned nForwardProtocolDecls = 0;
+static unsigned nCategoryDecls = 0;
+static unsigned nIvarDecls = 0;
+static unsigned nObjCImplementationDecls = 0;
+static unsigned nObjCCategoryImpl = 0;
+static unsigned nObjCCompatibleAlias = 0;
+static unsigned nObjCPropertyDecl = 0;
+static unsigned nObjCPropertyImplDecl = 0;
+static unsigned nLinkageSpecDecl = 0;
+static unsigned nFileScopeAsmDecl = 0;
+
+static bool StatSwitch = false;
+
+// This keeps track of all decl attributes. Since so few decls have attrs, we
+// keep them in a hash map instead of wasting space in the Decl class.
+typedef llvm::DenseMap<const Decl*, Attr*> DeclAttrMapTy;
+
+static DeclAttrMapTy *DeclAttrs = 0;
+
+const char *Decl::getDeclKindName() const {
+ switch (DeclKind) {
+ default: assert(0 && "Unknown decl kind!");
+ case Namespace: return "Namespace";
+ case Typedef: return "Typedef";
+ case Function: return "Function";
+ case Var: return "Var";
+ case ParmVar: return "ParmVar";
+ case EnumConstant: return "EnumConstant";
+ case ObjCIvar: return "ObjCIvar";
+ case ObjCInterface: return "ObjCInterface";
+ case ObjCClass: return "ObjCClass";
+ case ObjCMethod: return "ObjCMethod";
+ case ObjCProtocol: return "ObjCProtocol";
+ case ObjCForwardProtocol: return "ObjCForwardProtocol";
+ case Struct: return "Struct";
+ case Union: return "Union";
+ case Class: return "Class";
+ case Enum: return "Enum";
+ }
+}
+
+bool Decl::CollectingStats(bool Enable) {
+ if (Enable)
+ StatSwitch = true;
+ return StatSwitch;
+}
+
+void Decl::PrintStats() {
+ fprintf(stderr, "*** Decl Stats:\n");
+ fprintf(stderr, " %d decls total.\n",
+ int(nFuncs+nVars+nParmVars+nFieldDecls+nSUC+
+ nEnumDecls+nEnumConst+nTypedef+nInterfaceDecls+nClassDecls+
+ nMethodDecls+nProtocolDecls+nCategoryDecls+nIvarDecls+
+ nNamespaces));
+ fprintf(stderr, " %d namespace decls, %d each (%d bytes)\n",
+ nNamespaces, (int)sizeof(NamespaceDecl),
+ int(nNamespaces*sizeof(NamespaceDecl)));
+ fprintf(stderr, " %d function decls, %d each (%d bytes)\n",
+ nFuncs, (int)sizeof(FunctionDecl), int(nFuncs*sizeof(FunctionDecl)));
+ fprintf(stderr, " %d variable decls, %d each (%d bytes)\n",
+ nVars, (int)sizeof(VarDecl),
+ int(nVars*sizeof(VarDecl)));
+ fprintf(stderr, " %d parameter variable decls, %d each (%d bytes)\n",
+ nParmVars, (int)sizeof(ParmVarDecl),
+ int(nParmVars*sizeof(ParmVarDecl)));
+ fprintf(stderr, " %d field decls, %d each (%d bytes)\n",
+ nFieldDecls, (int)sizeof(FieldDecl),
+ int(nFieldDecls*sizeof(FieldDecl)));
+ fprintf(stderr, " %d struct/union/class decls, %d each (%d bytes)\n",
+ nSUC, (int)sizeof(RecordDecl),
+ int(nSUC*sizeof(RecordDecl)));
+ fprintf(stderr, " %d enum decls, %d each (%d bytes)\n",
+ nEnumDecls, (int)sizeof(EnumDecl),
+ int(nEnumDecls*sizeof(EnumDecl)));
+ fprintf(stderr, " %d enum constant decls, %d each (%d bytes)\n",
+ nEnumConst, (int)sizeof(EnumConstantDecl),
+ int(nEnumConst*sizeof(EnumConstantDecl)));
+ fprintf(stderr, " %d typedef decls, %d each (%d bytes)\n",
+ nTypedef, (int)sizeof(TypedefDecl),int(nTypedef*sizeof(TypedefDecl)));
+ // Objective-C decls...
+ fprintf(stderr, " %d interface decls, %d each (%d bytes)\n",
+ nInterfaceDecls, (int)sizeof(ObjCInterfaceDecl),
+ int(nInterfaceDecls*sizeof(ObjCInterfaceDecl)));
+ fprintf(stderr, " %d instance variable decls, %d each (%d bytes)\n",
+ nIvarDecls, (int)sizeof(ObjCIvarDecl),
+ int(nIvarDecls*sizeof(ObjCIvarDecl)));
+ fprintf(stderr, " %d class decls, %d each (%d bytes)\n",
+ nClassDecls, (int)sizeof(ObjCClassDecl),
+ int(nClassDecls*sizeof(ObjCClassDecl)));
+ fprintf(stderr, " %d method decls, %d each (%d bytes)\n",
+ nMethodDecls, (int)sizeof(ObjCMethodDecl),
+ int(nMethodDecls*sizeof(ObjCMethodDecl)));
+ fprintf(stderr, " %d protocol decls, %d each (%d bytes)\n",
+ nProtocolDecls, (int)sizeof(ObjCProtocolDecl),
+ int(nProtocolDecls*sizeof(ObjCProtocolDecl)));
+ fprintf(stderr, " %d forward protocol decls, %d each (%d bytes)\n",
+ nForwardProtocolDecls, (int)sizeof(ObjCForwardProtocolDecl),
+ int(nForwardProtocolDecls*sizeof(ObjCForwardProtocolDecl)));
+ fprintf(stderr, " %d category decls, %d each (%d bytes)\n",
+ nCategoryDecls, (int)sizeof(ObjCCategoryDecl),
+ int(nCategoryDecls*sizeof(ObjCCategoryDecl)));
+
+ fprintf(stderr, " %d class implementation decls, %d each (%d bytes)\n",
+ nObjCImplementationDecls, (int)sizeof(ObjCImplementationDecl),
+ int(nObjCImplementationDecls*sizeof(ObjCImplementationDecl)));
+
+ fprintf(stderr, " %d class implementation decls, %d each (%d bytes)\n",
+ nObjCCategoryImpl, (int)sizeof(ObjCCategoryImplDecl),
+ int(nObjCCategoryImpl*sizeof(ObjCCategoryImplDecl)));
+
+ fprintf(stderr, " %d compatibility alias decls, %d each (%d bytes)\n",
+ nObjCCompatibleAlias, (int)sizeof(ObjCCompatibleAliasDecl),
+ int(nObjCCompatibleAlias*sizeof(ObjCCompatibleAliasDecl)));
+
+ fprintf(stderr, " %d property decls, %d each (%d bytes)\n",
+ nObjCPropertyDecl, (int)sizeof(ObjCPropertyDecl),
+ int(nObjCPropertyDecl*sizeof(ObjCPropertyDecl)));
+
+ fprintf(stderr, " %d property implementation decls, %d each (%d bytes)\n",
+ nObjCPropertyImplDecl, (int)sizeof(ObjCPropertyImplDecl),
+ int(nObjCPropertyImplDecl*sizeof(ObjCPropertyImplDecl)));
+
+ fprintf(stderr, "Total bytes = %d\n",
+ int(nFuncs*sizeof(FunctionDecl)+
+ nVars*sizeof(VarDecl)+nParmVars*sizeof(ParmVarDecl)+
+ nFieldDecls*sizeof(FieldDecl)+nSUC*sizeof(RecordDecl)+
+ nEnumDecls*sizeof(EnumDecl)+nEnumConst*sizeof(EnumConstantDecl)+
+ nTypedef*sizeof(TypedefDecl)+
+ nInterfaceDecls*sizeof(ObjCInterfaceDecl)+
+ nIvarDecls*sizeof(ObjCIvarDecl)+
+ nClassDecls*sizeof(ObjCClassDecl)+
+ nMethodDecls*sizeof(ObjCMethodDecl)+
+ nProtocolDecls*sizeof(ObjCProtocolDecl)+
+ nForwardProtocolDecls*sizeof(ObjCForwardProtocolDecl)+
+ nCategoryDecls*sizeof(ObjCCategoryDecl)+
+ nObjCImplementationDecls*sizeof(ObjCImplementationDecl)+
+ nObjCCategoryImpl*sizeof(ObjCCategoryImplDecl)+
+ nObjCCompatibleAlias*sizeof(ObjCCompatibleAliasDecl)+
+ nObjCPropertyDecl*sizeof(ObjCPropertyDecl)+
+ nObjCPropertyImplDecl*sizeof(ObjCPropertyImplDecl)+
+ nLinkageSpecDecl*sizeof(LinkageSpecDecl)+
+ nFileScopeAsmDecl*sizeof(FileScopeAsmDecl)+
+ nNamespaces*sizeof(NamespaceDecl)));
+
+}
+
+void Decl::addDeclKind(Kind k) {
+ switch (k) {
+ case Namespace: nNamespaces++; break;
+ case Typedef: nTypedef++; break;
+ case Function: nFuncs++; break;
+ case Var: nVars++; break;
+ case ParmVar: nParmVars++; break;
+ case EnumConstant: nEnumConst++; break;
+ case Field: nFieldDecls++; break;
+ case Struct: case Union: case Class: nSUC++; break;
+ case Enum: nEnumDecls++; break;
+ case ObjCInterface: nInterfaceDecls++; break;
+ case ObjCClass: nClassDecls++; break;
+ case ObjCMethod: nMethodDecls++; break;
+ case ObjCProtocol: nProtocolDecls++; break;
+ case ObjCForwardProtocol: nForwardProtocolDecls++; break;
+ case ObjCCategory: nCategoryDecls++; break;
+ case ObjCIvar: nIvarDecls++; break;
+ case ObjCImplementation: nObjCImplementationDecls++; break;
+ case ObjCCategoryImpl: nObjCCategoryImpl++; break;
+ case ObjCCompatibleAlias: nObjCCompatibleAlias++; break;
+ case ObjCProperty: nObjCPropertyDecl++; break;
+ case ObjCPropertyImpl: nObjCPropertyImplDecl++; break;
+ case LinkageSpec: nLinkageSpecDecl++; break;
+ case FileScopeAsm: nFileScopeAsmDecl++; break;
+ case TranslationUnit: break;
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// Decl Implementation
+//===----------------------------------------------------------------------===//
+
+// Out-of-line virtual method providing a home for Decl.
+Decl::~Decl() {
+ if (!HasAttrs)
+ return;
+
+ DeclAttrMapTy::iterator it = DeclAttrs->find(this);
+ assert(it != DeclAttrs->end() && "No attrs found but HasAttrs is true!");
+
+ // release attributes.
+ delete it->second;
+ invalidateAttrs();
+}
+
+void Decl::addAttr(Attr *NewAttr) {
+ if (!DeclAttrs)
+ DeclAttrs = new DeclAttrMapTy();
+
+ Attr *&ExistingAttr = (*DeclAttrs)[this];
+
+ NewAttr->setNext(ExistingAttr);
+ ExistingAttr = NewAttr;
+
+ HasAttrs = true;
+}
+
+void Decl::invalidateAttrs() {
+ if (!HasAttrs) return;
+
+ HasAttrs = false;
+ (*DeclAttrs)[this] = 0;
+ DeclAttrs->erase(this);
+
+ if (DeclAttrs->empty()) {
+ delete DeclAttrs;
+ DeclAttrs = 0;
+ }
+}
+
+const Attr *Decl::getAttrs() const {
+ if (!HasAttrs)
+ return 0;
+
+ return (*DeclAttrs)[this];
+}
+
+void Decl::swapAttrs(Decl *RHS) {
+ bool HasLHSAttr = this->HasAttrs;
+ bool HasRHSAttr = RHS->HasAttrs;
+
+ // Usually, neither decl has attrs, nothing to do.
+ if (!HasLHSAttr && !HasRHSAttr) return;
+
+ // If 'this' has no attrs, swap the other way.
+ if (!HasLHSAttr)
+ return RHS->swapAttrs(this);
+
+ // Handle the case when both decls have attrs.
+ if (HasRHSAttr) {
+ std::swap((*DeclAttrs)[this], (*DeclAttrs)[RHS]);
+ return;
+ }
+
+ // Otherwise, LHS has an attr and RHS doesn't.
+ (*DeclAttrs)[RHS] = (*DeclAttrs)[this];
+ (*DeclAttrs).erase(this);
+ this->HasAttrs = false;
+ RHS->HasAttrs = true;
+}
+
+
+void Decl::Destroy(ASTContext& C) {
+
+ if (ScopedDecl* SD = dyn_cast<ScopedDecl>(this)) {
+
+ // Observe the unrolled recursion. By setting N->NextDeclarator = 0x0
+ // within the loop, only the Destroy method for the first ScopedDecl
+ // will deallocate all of the ScopedDecls in a chain.
+
+ ScopedDecl* N = SD->getNextDeclarator();
+
+ while (N) {
+ ScopedDecl* Tmp = N->getNextDeclarator();
+ N->NextDeclarator = 0x0;
+ N->Destroy(C);
+ N = Tmp;
+ }
+ }
+
+ this->~Decl();
+ C.getAllocator().Deallocate((void *)this);
+}
+
+//===----------------------------------------------------------------------===//
+// DeclContext Implementation
+//===----------------------------------------------------------------------===//
+
+DeclContext *DeclContext::getParent() const {
+ if (ScopedDecl *SD = dyn_cast<ScopedDecl>(this))
+ return SD->getDeclContext();
+ else
+ return NULL;
+}
+
+Decl *DeclContext::ToDecl (const DeclContext *D) {
+ return CastTo<Decl>(D);
+}
+
+DeclContext *DeclContext::FromDecl (const Decl *D) {
+ return CastTo<DeclContext>(D);
+}
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