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-rw-r--r--include/clang/AST/AttrIterator.h142
1 files changed, 0 insertions, 142 deletions
diff --git a/include/clang/AST/AttrIterator.h b/include/clang/AST/AttrIterator.h
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--- a/include/clang/AST/AttrIterator.h
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-//===--- AttrIterator.h - Classes for attribute iteration -------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the Attr vector and specific_attr_iterator interfaces.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_AST_ATTRITERATOR_H
-#define LLVM_CLANG_AST_ATTRITERATOR_H
-
-#include "clang/Basic/LLVM.h"
-#include <iterator>
-
-namespace clang {
- class ASTContext;
- class Attr;
-}
-
-// Defined in ASTContext.h
-void *operator new(size_t Bytes, const clang::ASTContext &C,
- size_t Alignment = 8);
-// FIXME: Being forced to not have a default argument here due to redeclaration
-// rules on default arguments sucks
-void *operator new[](size_t Bytes, const clang::ASTContext &C,
- size_t Alignment);
-
-// It is good practice to pair new/delete operators. Also, MSVC gives many
-// warnings if a matching delete overload is not declared, even though the
-// throw() spec guarantees it will not be implicitly called.
-void operator delete(void *Ptr, const clang::ASTContext &C, size_t);
-void operator delete[](void *Ptr, const clang::ASTContext &C, size_t);
-
-namespace clang {
-
-/// AttrVec - A vector of Attr, which is how they are stored on the AST.
-typedef SmallVector<Attr*, 2> AttrVec;
-typedef SmallVector<const Attr*, 2> ConstAttrVec;
-
-/// specific_attr_iterator - Iterates over a subrange of an AttrVec, only
-/// providing attributes that are of a specific type.
-template <typename SpecificAttr, typename Container = AttrVec>
-class specific_attr_iterator {
- typedef typename Container::const_iterator Iterator;
-
- /// Current - The current, underlying iterator.
- /// In order to ensure we don't dereference an invalid iterator unless
- /// specifically requested, we don't necessarily advance this all the
- /// way. Instead, we advance it when an operation is requested; if the
- /// operation is acting on what should be a past-the-end iterator,
- /// then we offer no guarantees, but this way we do not dereference a
- /// past-the-end iterator when we move to a past-the-end position.
- mutable Iterator Current;
-
- void AdvanceToNext() const {
- while (!isa<SpecificAttr>(*Current))
- ++Current;
- }
-
- void AdvanceToNext(Iterator I) const {
- while (Current != I && !isa<SpecificAttr>(*Current))
- ++Current;
- }
-
-public:
- typedef SpecificAttr* value_type;
- typedef SpecificAttr* reference;
- typedef SpecificAttr* pointer;
- typedef std::forward_iterator_tag iterator_category;
- typedef std::ptrdiff_t difference_type;
-
- specific_attr_iterator() : Current() { }
- explicit specific_attr_iterator(Iterator i) : Current(i) { }
-
- reference operator*() const {
- AdvanceToNext();
- return cast<SpecificAttr>(*Current);
- }
- pointer operator->() const {
- AdvanceToNext();
- return cast<SpecificAttr>(*Current);
- }
-
- specific_attr_iterator& operator++() {
- ++Current;
- return *this;
- }
- specific_attr_iterator operator++(int) {
- specific_attr_iterator Tmp(*this);
- ++(*this);
- return Tmp;
- }
-
- friend bool operator==(specific_attr_iterator Left,
- specific_attr_iterator Right) {
- assert((Left.Current == nullptr) == (Right.Current == nullptr));
- if (Left.Current < Right.Current)
- Left.AdvanceToNext(Right.Current);
- else
- Right.AdvanceToNext(Left.Current);
- return Left.Current == Right.Current;
- }
- friend bool operator!=(specific_attr_iterator Left,
- specific_attr_iterator Right) {
- return !(Left == Right);
- }
-};
-
-template <typename SpecificAttr, typename Container>
-inline specific_attr_iterator<SpecificAttr, Container>
- specific_attr_begin(const Container& container) {
- return specific_attr_iterator<SpecificAttr, Container>(container.begin());
-}
-template <typename SpecificAttr, typename Container>
-inline specific_attr_iterator<SpecificAttr, Container>
- specific_attr_end(const Container& container) {
- return specific_attr_iterator<SpecificAttr, Container>(container.end());
-}
-
-template <typename SpecificAttr, typename Container>
-inline bool hasSpecificAttr(const Container& container) {
- return specific_attr_begin<SpecificAttr>(container) !=
- specific_attr_end<SpecificAttr>(container);
-}
-template <typename SpecificAttr, typename Container>
-inline SpecificAttr *getSpecificAttr(const Container& container) {
- specific_attr_iterator<SpecificAttr, Container> i =
- specific_attr_begin<SpecificAttr>(container);
- if (i != specific_attr_end<SpecificAttr>(container))
- return *i;
- else
- return nullptr;
-}
-
-} // end namespace clang
-
-#endif
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