Coverage Report

Created: 2020-09-19 12:23

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/include/clang/AST/UnresolvedSet.h
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//===- UnresolvedSet.h - Unresolved sets of declarations --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file defines the UnresolvedSet class, which is used to store
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//  collections of declarations in the AST.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_AST_UNRESOLVEDSET_H
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#define LLVM_CLANG_AST_UNRESOLVEDSET_H
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#include "clang/AST/DeclAccessPair.h"
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#include "clang/Basic/LLVM.h"
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#include "clang/Basic/Specifiers.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/iterator.h"
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#include <cstddef>
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#include <iterator>
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namespace clang {
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class NamedDecl;
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/// The iterator over UnresolvedSets.  Serves as both the const and
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/// non-const iterator.
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class UnresolvedSetIterator : public llvm::iterator_adaptor_base<
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                                  UnresolvedSetIterator, DeclAccessPair *,
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                                  std::random_access_iterator_tag, NamedDecl *,
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                                  std::ptrdiff_t, NamedDecl *, NamedDecl *> {
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  friend class ASTUnresolvedSet;
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  friend class OverloadExpr;
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  friend class UnresolvedSetImpl;
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  explicit UnresolvedSetIterator(DeclAccessPair *Iter)
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99.6M
      : iterator_adaptor_base(Iter) {}
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  explicit UnresolvedSetIterator(const DeclAccessPair *Iter)
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369M
      : iterator_adaptor_base(const_cast<DeclAccessPair *>(Iter)) {}
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public:
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  // Work around a bug in MSVC 2013 where explicitly default constructed
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  // temporaries with defaulted ctors are not zero initialized.
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  UnresolvedSetIterator() : iterator_adaptor_base(nullptr) {}
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  NamedDecl *getDecl() const { return I->getDecl(); }
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  void setDecl(NamedDecl *ND) const { return I->setDecl(ND); }
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6.37M
  AccessSpecifier getAccess() const { return I->getAccess(); }
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  void setAccess(AccessSpecifier AS) { I->setAccess(AS); }
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  const DeclAccessPair &getPair() const { return *I; }
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  NamedDecl *operator*() const { return getDecl(); }
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  NamedDecl *operator->() const { return **this; }
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};
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/// A set of unresolved declarations.
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class UnresolvedSetImpl {
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  using DeclsTy = SmallVectorImpl<DeclAccessPair>;
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  // Don't allow direct construction, and only permit subclassing by
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  // UnresolvedSet.
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private:
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  template <unsigned N> friend class UnresolvedSet;
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  UnresolvedSetImpl() = default;
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  UnresolvedSetImpl(const UnresolvedSetImpl &) = default;
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  UnresolvedSetImpl &operator=(const UnresolvedSetImpl &) = default;
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  // FIXME: Switch these to "= default" once MSVC supports generating move ops
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  UnresolvedSetImpl(UnresolvedSetImpl &&) {}
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0
  UnresolvedSetImpl &operator=(UnresolvedSetImpl &&) { return *this; }
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public:
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  // We don't currently support assignment through this iterator, so we might
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  // as well use the same implementation twice.
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  using iterator = UnresolvedSetIterator;
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  using const_iterator = UnresolvedSetIterator;
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  iterator begin() { return iterator(decls().begin()); }
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  iterator end() { return iterator(decls().end()); }
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  const_iterator begin() const { return const_iterator(decls().begin()); }
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  const_iterator end() const { return const_iterator(decls().end()); }
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  ArrayRef<DeclAccessPair> pairs() const { return decls(); }
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  void addDecl(NamedDecl *D) {
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    addDecl(D, AS_none);
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  }
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  void addDecl(NamedDecl *D, AccessSpecifier AS) {
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    decls().push_back(DeclAccessPair::make(D, AS));
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  }
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  /// Replaces the given declaration with the new one, once.
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  ///
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  /// \return true if the set changed
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  bool replace(const NamedDecl* Old, NamedDecl *New) {
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    for (DeclsTy::iterator I = decls().begin(), E = decls().end(); I != E; ++I)
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      if (I->getDecl() == Old)
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        return (I->setDecl(New), true);
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    return false;
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  }
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  /// Replaces the declaration at the given iterator with the new one,
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  /// preserving the original access bits.
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  void replace(iterator I, NamedDecl *New) { I.I->setDecl(New); }
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  void replace(iterator I, NamedDecl *New, AccessSpecifier AS) {
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    I.I->set(New, AS);
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  }
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  void erase(unsigned I) { decls()[I] = decls().pop_back_val(); }
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  void erase(iterator I) { *I.I = decls().pop_back_val(); }
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  void setAccess(iterator I, AccessSpecifier AS) { I.I->setAccess(AS); }
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  void clear() { decls().clear(); }
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  void set_size(unsigned N) { decls().set_size(N); }
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  bool empty() const { return decls().empty(); }
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  unsigned size() const { return decls().size(); }
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  void append(iterator I, iterator E) { decls().append(I.I, E.I); }
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  template<typename Iter> void assign(Iter I, Iter E) { decls().assign(I, E); }
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  DeclAccessPair &operator[](unsigned I) { return decls()[I]; }
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  const DeclAccessPair &operator[](unsigned I) const { return decls()[I]; }
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private:
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  // These work because the only permitted subclass is UnresolvedSetImpl
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  DeclsTy &decls() {
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    return *reinterpret_cast<DeclsTy*>(this);
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  }
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  const DeclsTy &decls() const {
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    return *reinterpret_cast<const DeclsTy*>(this);
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  }
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};
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/// A set of unresolved declarations.
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template <unsigned InlineCapacity> class UnresolvedSet :
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    public UnresolvedSetImpl {
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  SmallVector<DeclAccessPair, InlineCapacity> Decls;
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};
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} // namespace clang
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#endif // LLVM_CLANG_AST_UNRESOLVEDSET_H