218 lines
8 KiB
C++
218 lines
8 KiB
C++
//===--- ASTCommon.cpp - Common stuff for ASTReader/ASTWriter----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines common functions that both ASTReader and ASTWriter use.
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//
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//===----------------------------------------------------------------------===//
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#include "ASTCommon.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/Basic/IdentifierTable.h"
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#include "clang/Serialization/ASTDeserializationListener.h"
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#include "llvm/ADT/StringExtras.h"
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using namespace clang;
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// Give ASTDeserializationListener's VTable a home.
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ASTDeserializationListener::~ASTDeserializationListener() { }
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serialization::TypeIdx
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serialization::TypeIdxFromBuiltin(const BuiltinType *BT) {
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unsigned ID = 0;
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switch (BT->getKind()) {
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case BuiltinType::Void: ID = PREDEF_TYPE_VOID_ID; break;
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case BuiltinType::Bool: ID = PREDEF_TYPE_BOOL_ID; break;
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case BuiltinType::Char_U: ID = PREDEF_TYPE_CHAR_U_ID; break;
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case BuiltinType::UChar: ID = PREDEF_TYPE_UCHAR_ID; break;
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case BuiltinType::UShort: ID = PREDEF_TYPE_USHORT_ID; break;
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case BuiltinType::UInt: ID = PREDEF_TYPE_UINT_ID; break;
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case BuiltinType::ULong: ID = PREDEF_TYPE_ULONG_ID; break;
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case BuiltinType::ULongLong: ID = PREDEF_TYPE_ULONGLONG_ID; break;
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case BuiltinType::UInt128: ID = PREDEF_TYPE_UINT128_ID; break;
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case BuiltinType::Char_S: ID = PREDEF_TYPE_CHAR_S_ID; break;
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case BuiltinType::SChar: ID = PREDEF_TYPE_SCHAR_ID; break;
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case BuiltinType::WChar_S:
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case BuiltinType::WChar_U: ID = PREDEF_TYPE_WCHAR_ID; break;
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case BuiltinType::Short: ID = PREDEF_TYPE_SHORT_ID; break;
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case BuiltinType::Int: ID = PREDEF_TYPE_INT_ID; break;
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case BuiltinType::Long: ID = PREDEF_TYPE_LONG_ID; break;
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case BuiltinType::LongLong: ID = PREDEF_TYPE_LONGLONG_ID; break;
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case BuiltinType::Int128: ID = PREDEF_TYPE_INT128_ID; break;
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case BuiltinType::Half: ID = PREDEF_TYPE_HALF_ID; break;
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case BuiltinType::Float: ID = PREDEF_TYPE_FLOAT_ID; break;
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case BuiltinType::Double: ID = PREDEF_TYPE_DOUBLE_ID; break;
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case BuiltinType::LongDouble: ID = PREDEF_TYPE_LONGDOUBLE_ID; break;
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case BuiltinType::NullPtr: ID = PREDEF_TYPE_NULLPTR_ID; break;
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case BuiltinType::Char16: ID = PREDEF_TYPE_CHAR16_ID; break;
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case BuiltinType::Char32: ID = PREDEF_TYPE_CHAR32_ID; break;
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case BuiltinType::Overload: ID = PREDEF_TYPE_OVERLOAD_ID; break;
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case BuiltinType::BoundMember:ID = PREDEF_TYPE_BOUND_MEMBER; break;
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case BuiltinType::PseudoObject:ID = PREDEF_TYPE_PSEUDO_OBJECT;break;
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case BuiltinType::Dependent: ID = PREDEF_TYPE_DEPENDENT_ID; break;
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case BuiltinType::UnknownAny: ID = PREDEF_TYPE_UNKNOWN_ANY; break;
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case BuiltinType::ARCUnbridgedCast:
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ID = PREDEF_TYPE_ARC_UNBRIDGED_CAST; break;
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case BuiltinType::ObjCId: ID = PREDEF_TYPE_OBJC_ID; break;
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case BuiltinType::ObjCClass: ID = PREDEF_TYPE_OBJC_CLASS; break;
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case BuiltinType::ObjCSel: ID = PREDEF_TYPE_OBJC_SEL; break;
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case BuiltinType::OCLImage1d: ID = PREDEF_TYPE_IMAGE1D_ID; break;
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case BuiltinType::OCLImage1dArray: ID = PREDEF_TYPE_IMAGE1D_ARR_ID; break;
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case BuiltinType::OCLImage1dBuffer: ID = PREDEF_TYPE_IMAGE1D_BUFF_ID; break;
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case BuiltinType::OCLImage2d: ID = PREDEF_TYPE_IMAGE2D_ID; break;
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case BuiltinType::OCLImage2dArray: ID = PREDEF_TYPE_IMAGE2D_ARR_ID; break;
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case BuiltinType::OCLImage3d: ID = PREDEF_TYPE_IMAGE3D_ID; break;
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case BuiltinType::OCLSampler: ID = PREDEF_TYPE_SAMPLER_ID; break;
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case BuiltinType::OCLEvent: ID = PREDEF_TYPE_EVENT_ID; break;
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case BuiltinType::BuiltinFn:
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ID = PREDEF_TYPE_BUILTIN_FN; break;
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}
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return TypeIdx(ID);
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}
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unsigned serialization::ComputeHash(Selector Sel) {
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unsigned N = Sel.getNumArgs();
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if (N == 0)
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++N;
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unsigned R = 5381;
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for (unsigned I = 0; I != N; ++I)
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if (IdentifierInfo *II = Sel.getIdentifierInfoForSlot(I))
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R = llvm::HashString(II->getName(), R);
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return R;
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}
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const DeclContext *
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serialization::getDefinitiveDeclContext(const DeclContext *DC) {
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switch (DC->getDeclKind()) {
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// These entities may have multiple definitions.
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case Decl::TranslationUnit:
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case Decl::Namespace:
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case Decl::LinkageSpec:
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return 0;
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// C/C++ tag types can only be defined in one place.
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case Decl::Enum:
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case Decl::Record:
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if (const TagDecl *Def = cast<TagDecl>(DC)->getDefinition())
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return Def;
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return 0;
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// FIXME: These can be defined in one place... except special member
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// functions and out-of-line definitions.
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case Decl::CXXRecord:
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case Decl::ClassTemplateSpecialization:
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case Decl::ClassTemplatePartialSpecialization:
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return 0;
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// Each function, method, and block declaration is its own DeclContext.
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case Decl::Function:
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case Decl::CXXMethod:
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case Decl::CXXConstructor:
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case Decl::CXXDestructor:
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case Decl::CXXConversion:
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case Decl::ObjCMethod:
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case Decl::Block:
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case Decl::Captured:
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// Objective C categories, category implementations, and class
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// implementations can only be defined in one place.
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case Decl::ObjCCategory:
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case Decl::ObjCCategoryImpl:
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case Decl::ObjCImplementation:
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return DC;
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case Decl::ObjCProtocol:
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if (const ObjCProtocolDecl *Def
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= cast<ObjCProtocolDecl>(DC)->getDefinition())
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return Def;
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return 0;
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// FIXME: These are defined in one place, but properties in class extensions
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// end up being back-patched into the main interface. See
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// Sema::HandlePropertyInClassExtension for the offending code.
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case Decl::ObjCInterface:
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return 0;
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default:
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llvm_unreachable("Unhandled DeclContext in AST reader");
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}
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llvm_unreachable("Unhandled decl kind");
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}
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bool serialization::isRedeclarableDeclKind(unsigned Kind) {
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switch (static_cast<Decl::Kind>(Kind)) {
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case Decl::TranslationUnit: // Special case of a "merged" declaration.
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case Decl::Namespace:
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case Decl::NamespaceAlias: // FIXME: Not yet redeclarable, but will be.
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case Decl::Typedef:
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case Decl::TypeAlias:
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case Decl::Enum:
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case Decl::Record:
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case Decl::CXXRecord:
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case Decl::ClassTemplateSpecialization:
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case Decl::ClassTemplatePartialSpecialization:
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case Decl::VarTemplateSpecialization:
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case Decl::VarTemplatePartialSpecialization:
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case Decl::Function:
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case Decl::CXXMethod:
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case Decl::CXXConstructor:
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case Decl::CXXDestructor:
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case Decl::CXXConversion:
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case Decl::UsingShadow:
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case Decl::Var:
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case Decl::FunctionTemplate:
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case Decl::ClassTemplate:
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case Decl::VarTemplate:
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case Decl::TypeAliasTemplate:
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case Decl::ObjCProtocol:
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case Decl::ObjCInterface:
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case Decl::Empty:
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return true;
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// Never redeclarable.
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case Decl::UsingDirective:
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case Decl::Label:
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case Decl::UnresolvedUsingTypename:
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case Decl::TemplateTypeParm:
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case Decl::EnumConstant:
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case Decl::UnresolvedUsingValue:
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case Decl::IndirectField:
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case Decl::Field:
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case Decl::MSProperty:
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case Decl::ObjCIvar:
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case Decl::ObjCAtDefsField:
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case Decl::ImplicitParam:
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case Decl::ParmVar:
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case Decl::NonTypeTemplateParm:
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case Decl::TemplateTemplateParm:
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case Decl::Using:
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case Decl::ObjCMethod:
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case Decl::ObjCCategory:
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case Decl::ObjCCategoryImpl:
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case Decl::ObjCImplementation:
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case Decl::ObjCProperty:
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case Decl::ObjCCompatibleAlias:
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case Decl::LinkageSpec:
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case Decl::ObjCPropertyImpl:
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case Decl::FileScopeAsm:
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case Decl::AccessSpec:
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case Decl::Friend:
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case Decl::FriendTemplate:
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case Decl::StaticAssert:
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case Decl::Block:
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case Decl::Captured:
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case Decl::ClassScopeFunctionSpecialization:
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case Decl::Import:
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case Decl::OMPThreadPrivate:
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return false;
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}
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llvm_unreachable("Unhandled declaration kind");
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}
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