116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
//===-- DeclLookups.h - Low-level interface to all names in a DC-*- 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 DeclContext::all_lookups_iterator.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CLANG_AST_DECLLOOKUPS_H
|
|
#define LLVM_CLANG_AST_DECLLOOKUPS_H
|
|
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/DeclBase.h"
|
|
#include "clang/AST/DeclContextInternals.h"
|
|
#include "clang/AST/DeclarationName.h"
|
|
|
|
namespace clang {
|
|
|
|
/// all_lookups_iterator - An iterator that provides a view over the results
|
|
/// of looking up every possible name.
|
|
class DeclContext::all_lookups_iterator {
|
|
StoredDeclsMap::iterator It, End;
|
|
public:
|
|
typedef lookup_result value_type;
|
|
typedef lookup_result reference;
|
|
typedef lookup_result pointer;
|
|
typedef std::forward_iterator_tag iterator_category;
|
|
typedef std::ptrdiff_t difference_type;
|
|
|
|
all_lookups_iterator() {}
|
|
all_lookups_iterator(StoredDeclsMap::iterator It,
|
|
StoredDeclsMap::iterator End)
|
|
: It(It), End(End) {}
|
|
|
|
DeclarationName getLookupName() const { return It->first; }
|
|
|
|
reference operator*() const { return It->second.getLookupResult(); }
|
|
pointer operator->() const { return It->second.getLookupResult(); }
|
|
|
|
all_lookups_iterator& operator++() {
|
|
// Filter out using directives. They don't belong as results from name
|
|
// lookup anyways, except as an implementation detail. Users of the API
|
|
// should not expect to get them (or worse, rely on it).
|
|
do {
|
|
++It;
|
|
} while (It != End &&
|
|
It->first == DeclarationName::getUsingDirectiveName());
|
|
|
|
return *this;
|
|
}
|
|
|
|
all_lookups_iterator operator++(int) {
|
|
all_lookups_iterator tmp(*this);
|
|
++(*this);
|
|
return tmp;
|
|
}
|
|
|
|
friend bool operator==(all_lookups_iterator x, all_lookups_iterator y) {
|
|
return x.It == y.It;
|
|
}
|
|
friend bool operator!=(all_lookups_iterator x, all_lookups_iterator y) {
|
|
return x.It != y.It;
|
|
}
|
|
};
|
|
|
|
inline DeclContext::lookups_range DeclContext::lookups() const {
|
|
DeclContext *Primary = const_cast<DeclContext*>(this)->getPrimaryContext();
|
|
if (Primary->hasExternalVisibleStorage())
|
|
getParentASTContext().getExternalSource()->completeVisibleDeclsMap(Primary);
|
|
if (StoredDeclsMap *Map = Primary->buildLookup())
|
|
return lookups_range(all_lookups_iterator(Map->begin(), Map->end()),
|
|
all_lookups_iterator(Map->end(), Map->end()));
|
|
|
|
// Synthesize an empty range. This requires that two default constructed
|
|
// versions of these iterators form a valid empty range.
|
|
return lookups_range(all_lookups_iterator(), all_lookups_iterator());
|
|
}
|
|
|
|
inline DeclContext::all_lookups_iterator DeclContext::lookups_begin() const {
|
|
return lookups().begin();
|
|
}
|
|
|
|
inline DeclContext::all_lookups_iterator DeclContext::lookups_end() const {
|
|
return lookups().end();
|
|
}
|
|
|
|
inline DeclContext::lookups_range DeclContext::noload_lookups() const {
|
|
DeclContext *Primary = const_cast<DeclContext*>(this)->getPrimaryContext();
|
|
if (StoredDeclsMap *Map = Primary->getLookupPtr())
|
|
return lookups_range(all_lookups_iterator(Map->begin(), Map->end()),
|
|
all_lookups_iterator(Map->end(), Map->end()));
|
|
|
|
// Synthesize an empty range. This requires that two default constructed
|
|
// versions of these iterators form a valid empty range.
|
|
return lookups_range(all_lookups_iterator(), all_lookups_iterator());
|
|
}
|
|
|
|
inline
|
|
DeclContext::all_lookups_iterator DeclContext::noload_lookups_begin() const {
|
|
return noload_lookups().begin();
|
|
}
|
|
|
|
inline
|
|
DeclContext::all_lookups_iterator DeclContext::noload_lookups_end() const {
|
|
return noload_lookups().end();
|
|
}
|
|
|
|
} // end namespace clang
|
|
|
|
#endif
|