276dd188c4
When an AST file is built based on another AST file, it can use a decl from the fist file, and therefore mark the "isUsed" bit. We need to note this in the AST file so that the bit is set correctly when the second AST file is loaded. This patch introduces the distinction between setIsUsed() and markUsed() so that we don't call into the ASTMutationListener callback when it wouldn't be appropriate. Fixes PR16635. llvm-svn: 190016
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
//===- 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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#ifndef LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
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#define LLVM_CLANG_SERIALIZATION_LIB_AST_COMMON_H
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#include "clang/AST/ASTContext.h"
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#include "clang/Serialization/ASTBitCodes.h"
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namespace clang {
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namespace serialization {
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enum DeclUpdateKind {
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UPD_CXX_ADDED_IMPLICIT_MEMBER,
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UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION,
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UPD_CXX_ADDED_ANONYMOUS_NAMESPACE,
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UPD_CXX_INSTANTIATED_STATIC_DATA_MEMBER,
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UPD_CXX_DEDUCED_RETURN_TYPE,
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UPD_DECL_MARKED_USED
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};
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TypeIdx TypeIdxFromBuiltin(const BuiltinType *BT);
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template <typename IdxForTypeTy>
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TypeID MakeTypeID(ASTContext &Context, QualType T, IdxForTypeTy IdxForType) {
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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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T.removeLocalFastQualifiers();
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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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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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if (T == Context.VaListTagTy)
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return TypeIdx(PREDEF_TYPE_VA_LIST_TAG).asTypeID(FastQuals);
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return IdxForType(T).asTypeID(FastQuals);
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}
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unsigned ComputeHash(Selector Sel);
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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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const DeclContext *getDefinitiveDeclContext(const DeclContext *DC);
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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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} // namespace serialization
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} // namespace clang
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#endif
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