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Diffstat (limited to 'include/clang/AST/AttrIterator.h')
-rw-r--r-- | include/clang/AST/AttrIterator.h | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/include/clang/AST/AttrIterator.h b/include/clang/AST/AttrIterator.h deleted file mode 100644 index a0c8030..0000000 --- a/include/clang/AST/AttrIterator.h +++ /dev/null @@ -1,142 +0,0 @@ -//===--- 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 |