f22ef01c33
in llvm/ and/or llvm/contrib/clang/ respectively. Approved by: ed (mentor) Approved by: core
91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
//===--- DeclReferenceMap.cpp - Map Decls to their references -------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// DeclReferenceMap creates a mapping from Decls to the ASTLocations that
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// reference them.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Index/DeclReferenceMap.h"
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#include "clang/Index/ASTLocation.h"
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#include "ASTVisitor.h"
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using namespace clang;
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using namespace idx;
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namespace {
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class RefMapper : public ASTVisitor<RefMapper> {
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DeclReferenceMap::MapTy ⤅
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public:
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RefMapper(DeclReferenceMap::MapTy &map) : Map(map) { }
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void VisitDeclRefExpr(DeclRefExpr *Node);
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void VisitMemberExpr(MemberExpr *Node);
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void VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node);
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void VisitTypedefTypeLoc(TypedefTypeLoc TL);
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void VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL);
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};
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} // anonymous namespace
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//===----------------------------------------------------------------------===//
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// RefMapper Implementation
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//===----------------------------------------------------------------------===//
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void RefMapper::VisitDeclRefExpr(DeclRefExpr *Node) {
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NamedDecl *PrimD = cast<NamedDecl>(Node->getDecl()->getCanonicalDecl());
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Map.insert(std::make_pair(PrimD, ASTLocation(CurrentDecl, Node)));
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}
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void RefMapper::VisitMemberExpr(MemberExpr *Node) {
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NamedDecl *PrimD = cast<NamedDecl>(Node->getMemberDecl()->getCanonicalDecl());
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Map.insert(std::make_pair(PrimD, ASTLocation(CurrentDecl, Node)));
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}
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void RefMapper::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
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Map.insert(std::make_pair(Node->getDecl(), ASTLocation(CurrentDecl, Node)));
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}
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void RefMapper::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
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NamedDecl *ND = TL.getTypedefDecl();
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Map.insert(std::make_pair(ND, ASTLocation(CurrentDecl, ND, TL.getNameLoc())));
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}
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void RefMapper::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
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NamedDecl *ND = TL.getIFaceDecl();
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Map.insert(std::make_pair(ND, ASTLocation(CurrentDecl, ND, TL.getNameLoc())));
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}
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//===----------------------------------------------------------------------===//
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// DeclReferenceMap Implementation
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//===----------------------------------------------------------------------===//
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DeclReferenceMap::DeclReferenceMap(ASTContext &Ctx) {
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RefMapper(Map).Visit(Ctx.getTranslationUnitDecl());
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}
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DeclReferenceMap::astlocation_iterator
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DeclReferenceMap::refs_begin(NamedDecl *D) const {
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NamedDecl *Prim = cast<NamedDecl>(D->getCanonicalDecl());
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return astlocation_iterator(Map.lower_bound(Prim));
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}
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DeclReferenceMap::astlocation_iterator
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DeclReferenceMap::refs_end(NamedDecl *D) const {
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NamedDecl *Prim = cast<NamedDecl>(D->getCanonicalDecl());
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return astlocation_iterator(Map.upper_bound(Prim));
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}
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bool DeclReferenceMap::refs_empty(NamedDecl *D) const {
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NamedDecl *Prim = cast<NamedDecl>(D->getCanonicalDecl());
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return refs_begin(Prim) == refs_end(Prim);
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}
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