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//===--- SelectorMap.h - Maps selectors to methods and messages -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// SelectorMap creates a mapping from selectors to ObjC method declarations
// and ObjC message expressions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_INDEX_SELECTORMAP_H
#define LLVM_CLANG_INDEX_SELECTORMAP_H
#include "clang/Index/ASTLocation.h"
#include "clang/Basic/IdentifierTable.h"
#include <map>
namespace clang {
class ASTContext;
class ObjCMethodDecl;
namespace idx {
/// \brief Maps NamedDecls with the ASTLocations that reference them.
///
/// References are mapped and retrieved using the canonical decls.
class SelectorMap {
template <typename iter_type>
class wrap_pair_iterator {
iter_type I;
wrap_pair_iterator(iter_type i) : I(i) { }
friend class SelectorMap;
public:
typedef typename iter_type::value_type::second_type value_type;
typedef value_type& reference;
typedef value_type* pointer;
typedef typename iter_type::iterator_category iterator_category;
typedef typename iter_type::difference_type difference_type;
wrap_pair_iterator() { }
reference operator*() const { return I->second; }
pointer operator->() const { return &I->second; }
wrap_pair_iterator& operator++() {
++I;
return *this;
}
wrap_pair_iterator operator++(int) {
wrap_pair_iterator tmp(*this);
++(*this);
return tmp;
}
friend bool operator==(wrap_pair_iterator L, wrap_pair_iterator R) {
return L.I == R.I;
}
friend bool operator!=(wrap_pair_iterator L, wrap_pair_iterator R) {
return L.I != R.I;
}
};
public:
explicit SelectorMap(ASTContext &Ctx);
typedef std::multimap<Selector, ObjCMethodDecl *> SelMethMapTy;
typedef std::multimap<Selector, ASTLocation> SelRefMapTy;
typedef wrap_pair_iterator<SelMethMapTy::iterator> method_iterator;
typedef wrap_pair_iterator<SelRefMapTy::iterator> astlocation_iterator;
method_iterator methods_begin(Selector Sel) const;
method_iterator methods_end(Selector Sel) const;
astlocation_iterator refs_begin(Selector Sel) const;
astlocation_iterator refs_end(Selector Sel) const;
private:
mutable SelMethMapTy SelMethMap;
mutable SelRefMapTy SelRefMap;
};
} // end idx namespace
} // end clang namespace
#endif
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