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authorStephen Hines <srhines@google.com>2019-07-02 16:25:20 -0700
committerAli B <abittin@gmail.com>2019-07-05 19:33:16 +0300
commit9afee4e65dc5f9f5eb371683729ff67b8df81d03 (patch)
tree4cf241d6c9044f91ee8c06e6920174d06f8de0b6 /clang-r353983e/include/clang/AST/BaseSubobject.h
parent2f19bd722c4c825320d1511c1ed83161b7f95d51 (diff)
Update prebuilt Clang to r353983e.HEADq10.0
clang 9.0.5 (based on r353983e) from build 5696680. Bug: http://b/135931688 Bug: http://b/136008926 Test: N/A Change-Id: I922d17410047d2e2df4625615352c588ee71b203
Diffstat (limited to 'clang-r353983e/include/clang/AST/BaseSubobject.h')
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diff --git a/clang-r353983e/include/clang/AST/BaseSubobject.h b/clang-r353983e/include/clang/AST/BaseSubobject.h
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+//===- BaseSubobject.h - BaseSubobject class --------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides a definition of the BaseSubobject class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_AST_BASESUBOBJECT_H
+#define LLVM_CLANG_AST_BASESUBOBJECT_H
+
+#include "clang/AST/CharUnits.h"
+#include "clang/AST/DeclCXX.h"
+#include "llvm/ADT/DenseMapInfo.h"
+#include "llvm/Support/type_traits.h"
+#include <cstdint>
+#include <utility>
+
+namespace clang {
+
+class CXXRecordDecl;
+
+// BaseSubobject - Uniquely identifies a direct or indirect base class.
+// Stores both the base class decl and the offset from the most derived class to
+// the base class. Used for vtable and VTT generation.
+class BaseSubobject {
+ /// Base - The base class declaration.
+ const CXXRecordDecl *Base;
+
+ /// BaseOffset - The offset from the most derived class to the base class.
+ CharUnits BaseOffset;
+
+public:
+ BaseSubobject() = default;
+ BaseSubobject(const CXXRecordDecl *Base, CharUnits BaseOffset)
+ : Base(Base), BaseOffset(BaseOffset) {}
+
+ /// getBase - Returns the base class declaration.
+ const CXXRecordDecl *getBase() const { return Base; }
+
+ /// getBaseOffset - Returns the base class offset.
+ CharUnits getBaseOffset() const { return BaseOffset; }
+
+ friend bool operator==(const BaseSubobject &LHS, const BaseSubobject &RHS) {
+ return LHS.Base == RHS.Base && LHS.BaseOffset == RHS.BaseOffset;
+ }
+};
+
+} // namespace clang
+
+namespace llvm {
+
+template<> struct DenseMapInfo<clang::BaseSubobject> {
+ static clang::BaseSubobject getEmptyKey() {
+ return clang::BaseSubobject(
+ DenseMapInfo<const clang::CXXRecordDecl *>::getEmptyKey(),
+ clang::CharUnits::fromQuantity(DenseMapInfo<int64_t>::getEmptyKey()));
+ }
+
+ static clang::BaseSubobject getTombstoneKey() {
+ return clang::BaseSubobject(
+ DenseMapInfo<const clang::CXXRecordDecl *>::getTombstoneKey(),
+ clang::CharUnits::fromQuantity(DenseMapInfo<int64_t>::getTombstoneKey()));
+ }
+
+ static unsigned getHashValue(const clang::BaseSubobject &Base) {
+ using PairTy = std::pair<const clang::CXXRecordDecl *, clang::CharUnits>;
+
+ return DenseMapInfo<PairTy>::getHashValue(PairTy(Base.getBase(),
+ Base.getBaseOffset()));
+ }
+
+ static bool isEqual(const clang::BaseSubobject &LHS,
+ const clang::BaseSubobject &RHS) {
+ return LHS == RHS;
+ }
+};
+
+} // namespace llvm
+
+#endif // LLVM_CLANG_AST_BASESUBOBJECT_H