2010-08-21 00:03:52 +08:00
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//===- ASTCommon.h - 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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2014-08-14 00:25:19 +08:00
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#ifndef LLVM_CLANG_LIB_SERIALIZATION_ASTCOMMON_H
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#define LLVM_CLANG_LIB_SERIALIZATION_ASTCOMMON_H
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2010-08-21 00:03:52 +08:00
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2011-08-09 23:13:55 +08:00
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#include "clang/AST/ASTContext.h"
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2012-12-04 17:13:33 +08:00
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#include "clang/Serialization/ASTBitCodes.h"
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2010-08-21 00:04:20 +08:00
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2010-08-21 00:03:52 +08:00
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namespace clang {
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namespace serialization {
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2010-10-25 01:26:50 +08:00
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enum DeclUpdateKind {
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2010-10-28 15:38:42 +08:00
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UPD_CXX_ADDED_IMPLICIT_MEMBER,
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2011-04-25 00:28:13 +08:00
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UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION,
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2011-04-29 16:19:30 +08:00
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UPD_CXX_ADDED_ANONYMOUS_NAMESPACE,
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2014-08-08 02:53:08 +08:00
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UPD_CXX_ADDED_FUNCTION_DEFINITION,
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2013-05-11 13:45:24 +08:00
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UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER,
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2014-04-19 11:48:30 +08:00
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UPD_CXX_INSTANTIATED_CLASS_DEFINITION,
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2014-03-21 05:47:22 +08:00
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UPD_CXX_RESOLVED_EXCEPTION_SPEC,
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2013-09-05 08:02:25 +08:00
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UPD_CXX_DEDUCED_RETURN_TYPE,
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2014-03-21 09:48:23 +08:00
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UPD_DECL_MARKED_USED,
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UPD_MANGLING_NUMBER,
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UPD_STATIC_LOCAL_NUMBER
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2010-10-25 01:26:50 +08:00
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};
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2010-08-21 00:04:20 +08:00
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TypeIdx TypeIdxFromBuiltin(const BuiltinType *BT);
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template <typename IdxForTypeTy>
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2011-08-09 23:13:55 +08:00
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TypeID MakeTypeID(ASTContext &Context, QualType T, IdxForTypeTy IdxForType) {
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2010-08-21 00:04:20 +08:00
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if (T.isNull())
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return PREDEF_TYPE_NULL_ID;
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unsigned FastQuals = T.getLocalFastQualifiers();
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2010-12-10 19:01:00 +08:00
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T.removeLocalFastQualifiers();
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2010-08-21 00:04:20 +08:00
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if (T.hasLocalNonFastQualifiers())
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return IdxForType(T).asTypeID(FastQuals);
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assert(!T.hasLocalQualifiers());
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if (const BuiltinType *BT = dyn_cast<BuiltinType>(T.getTypePtr()))
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return TypeIdxFromBuiltin(BT).asTypeID(FastQuals);
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2011-08-09 23:13:55 +08:00
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if (T == Context.AutoDeductTy)
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return TypeIdx(PREDEF_TYPE_AUTO_DEDUCT).asTypeID(FastQuals);
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if (T == Context.AutoRRefDeductTy)
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return TypeIdx(PREDEF_TYPE_AUTO_RREF_DEDUCT).asTypeID(FastQuals);
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2012-07-01 23:57:25 +08:00
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if (T == Context.VaListTagTy)
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return TypeIdx(PREDEF_TYPE_VA_LIST_TAG).asTypeID(FastQuals);
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2011-08-09 23:13:55 +08:00
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2010-08-21 00:04:20 +08:00
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return IdxForType(T).asTypeID(FastQuals);
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}
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2010-08-21 00:03:52 +08:00
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unsigned ComputeHash(Selector Sel);
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2013-01-21 23:25:38 +08:00
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/// \brief Retrieve the "definitive" declaration that provides all of the
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/// visible entries for the given declaration context, if there is one.
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///
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/// The "definitive" declaration is the only place where we need to look to
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/// find information about the declarations within the given declaration
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/// context. For example, C++ and Objective-C classes, C structs/unions, and
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/// Objective-C protocols, categories, and extensions are all defined in a
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/// single place in the source code, so they have definitive declarations
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/// associated with them. C++ namespaces, on the other hand, can have
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/// multiple definitions.
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2013-01-23 01:08:30 +08:00
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const DeclContext *getDefinitiveDeclContext(const DeclContext *DC);
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2013-01-21 23:25:38 +08:00
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2013-01-22 00:16:40 +08:00
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/// \brief Determine whether the given declaration kind is redeclarable.
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bool isRedeclarableDeclKind(unsigned Kind);
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2010-08-21 00:03:52 +08:00
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} // namespace serialization
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} // namespace clang
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#endif
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