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//===- CIndexHigh.cpp - Higher level API functions ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "IndexingContext.h"
#include "clang/AST/DataRecursiveASTVisitor.h"
using namespace clang;
using namespace cxindex;
namespace {
class BodyIndexer : public DataRecursiveASTVisitor<BodyIndexer> {
IndexingContext &IndexCtx;
const NamedDecl *Parent;
const DeclContext *ParentDC;
typedef DataRecursiveASTVisitor<BodyIndexer> base;
public:
BodyIndexer(IndexingContext &indexCtx,
const NamedDecl *Parent, const DeclContext *DC)
: IndexCtx(indexCtx), Parent(Parent), ParentDC(DC) { }
bool shouldWalkTypesOfTypeLocs() const { return false; }
bool TraverseTypeLoc(TypeLoc TL) {
IndexCtx.indexTypeLoc(TL, Parent, ParentDC);
return true;
}
bool TraverseNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS) {
IndexCtx.indexNestedNameSpecifierLoc(NNS, Parent, ParentDC);
return true;
}
bool VisitDeclRefExpr(DeclRefExpr *E) {
IndexCtx.handleReference(E->getDecl(), E->getLocation(),
Parent, ParentDC, E);
return true;
}
bool VisitMemberExpr(MemberExpr *E) {
IndexCtx.handleReference(E->getMemberDecl(), E->getMemberLoc(),
Parent, ParentDC, E);
return true;
}
bool VisitDesignatedInitExpr(DesignatedInitExpr *E) {
for (DesignatedInitExpr::reverse_designators_iterator
D = E->designators_rbegin(), DEnd = E->designators_rend();
D != DEnd; ++D) {
if (D->isFieldDesignator())
IndexCtx.handleReference(D->getField(), D->getFieldLoc(),
Parent, ParentDC, E);
}
return true;
}
bool VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
IndexCtx.handleReference(E->getDecl(), E->getLocation(),
Parent, ParentDC, E);
return true;
}
bool VisitObjCMessageExpr(ObjCMessageExpr *E) {
if (ObjCMethodDecl *MD = E->getMethodDecl())
IndexCtx.handleReference(MD, E->getSelectorStartLoc(),
Parent, ParentDC, E,
E->isImplicit() ? CXIdxEntityRef_Implicit
: CXIdxEntityRef_Direct);
return true;
}
bool VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
if (E->isExplicitProperty())
IndexCtx.handleReference(E->getExplicitProperty(), E->getLocation(),
Parent, ParentDC, E);
// No need to do a handleReference for the objc method, because there will
// be a message expr as part of PseudoObjectExpr.
return true;
}
bool VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
IndexCtx.handleReference(E->getPropertyDecl(), E->getMemberLoc(), Parent,
ParentDC, E, CXIdxEntityRef_Direct);
return true;
}
bool VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
IndexCtx.handleReference(E->getProtocol(), E->getProtocolIdLoc(),
Parent, ParentDC, E, CXIdxEntityRef_Direct);
return true;
}
bool VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
if (ObjCMethodDecl *MD = E->getBoxingMethod())
IndexCtx.handleReference(MD, E->getLocStart(),
Parent, ParentDC, E, CXIdxEntityRef_Implicit);
return true;
}
bool VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
if (ObjCMethodDecl *MD = E->getDictWithObjectsMethod())
IndexCtx.handleReference(MD, E->getLocStart(),
Parent, ParentDC, E, CXIdxEntityRef_Implicit);
return true;
}
bool VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
if (ObjCMethodDecl *MD = E->getArrayWithObjectsMethod())
IndexCtx.handleReference(MD, E->getLocStart(),
Parent, ParentDC, E, CXIdxEntityRef_Implicit);
return true;
}
bool VisitCXXConstructExpr(CXXConstructExpr *E) {
IndexCtx.handleReference(E->getConstructor(), E->getLocation(),
Parent, ParentDC, E);
return true;
}
bool TraverseCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
if (E->getOperatorLoc().isInvalid())
return true; // implicit.
return base::TraverseCXXOperatorCallExpr(E);
}
bool VisitDeclStmt(DeclStmt *S) {
if (IndexCtx.shouldIndexFunctionLocalSymbols()) {
IndexCtx.indexDeclGroupRef(S->getDeclGroup());
return true;
}
DeclGroupRef DG = S->getDeclGroup();
for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) {
const Decl *D = *I;
if (!D)
continue;
if (!IndexCtx.isFunctionLocalDecl(D))
IndexCtx.indexTopLevelDecl(D);
}
return true;
}
bool TraverseLambdaCapture(LambdaExpr *LE, const LambdaCapture *C) {
if (C->capturesThis())
return true;
if (C->capturesVariable() && IndexCtx.shouldIndexFunctionLocalSymbols())
IndexCtx.handleReference(C->getCapturedVar(), C->getLocation(), Parent,
ParentDC);
// FIXME: Lambda init-captures.
return true;
}
};
} // anonymous namespace
void IndexingContext::indexBody(const Stmt *S, const NamedDecl *Parent,
const DeclContext *DC) {
if (!S)
return;
if (!DC)
DC = Parent->getLexicalDeclContext();
BodyIndexer(*this, Parent, DC).TraverseStmt(const_cast<Stmt*>(S));
}
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