void IndexerJob::nestedClassConstructorCallUgleHack(const CXCursor &parent, CursorInfo &info,
CXCursorKind refKind, const Location &refLoc)
{
if (refKind == CXCursor_Constructor
&& clang_getCursorKind(mLastCursor) == CXCursor_TypeRef
&& clang_getCursorKind(parent) == CXCursor_CXXFunctionalCastExpr) {
const CXStringScope str = clang_getCursorSpelling(mLastCursor);
int start = -1;
const char *cstr = str.data();
int idx = 0;
while (cstr[idx]) {
if (start == -1 && cstr[idx] == ' ') {
start = idx;
}
++idx;
}
if (start != -1) {
// error() << "Changed symbolLength from" << info.symbolLength << "to" << (idx - start - 1) << "for dude reffing" << refLoc;
info.symbolLength = idx - start - 1;
}
RTags::Filter in;
in.kinds.insert(CXCursor_TypeRef);
const List<CXCursor> typeRefs = RTags::children(parent, in);
for (int i=0; i<typeRefs.size(); ++i) {
const Location loc = createLocation(typeRefs.at(i));
// error() << "Added" << refLoc << "to targets for" << typeRefs.at(i);
mData->symbols[loc].targets.insert(refLoc);
}
}
}
static CXChildVisitResult findChildVisitor(CXCursor cursor, CXCursor, CXClientData data)
{
FindChildVisitor *u = reinterpret_cast<FindChildVisitor*>(data);
if (u->name.isEmpty()) {
if (clang_getCursorKind(cursor) == u->kind) {
u->cursor = cursor;
return CXChildVisit_Break;
}
} else {
CXStringScope str = clang_getCursorSpelling(cursor);
if (str.data() && u->name == str.data()) {
u->cursor = cursor;
return CXChildVisit_Break;
}
}
return CXChildVisit_Continue;
}
bool IndexerJob::handleCursor(const CXCursor &cursor, CXCursorKind kind, const Location &location)
{
CursorInfo &info = mData->symbols[location];
if (!info.symbolLength || !RTags::isCursor(info.kind)) {
CXStringScope name = clang_getCursorSpelling(cursor);
const char *cstr = name.data();
info.symbolLength = cstr ? strlen(cstr) : 0;
info.type = clang_getCursorType(cursor).kind;
if (!info.symbolLength) {
// this is for these constructs:
// typedef struct {
// int a;
// } foobar;
//
// We end up not getting a spelling for the cursor
switch (kind) {
case CXCursor_ClassDecl:
info.symbolLength = 5;
info.symbolName = "class";
break;
case CXCursor_UnionDecl:
info.symbolLength = 5;
info.symbolName = "union";
break;
case CXCursor_StructDecl:
info.symbolLength = 6;
info.symbolName = "struct";
break;
default:
mData->symbols.remove(location);
return false;
}
} else {
info.symbolName = addNamePermutations(cursor, location);
}
CXSourceRange range = clang_getCursorExtent(cursor);
unsigned start, end;
clang_getSpellingLocation(clang_getRangeStart(range), 0, 0, 0, &start);
clang_getSpellingLocation(clang_getRangeEnd(range), 0, 0, 0, &end);
info.start = start;
info.end = end;
if (kind == CXCursor_EnumConstantDecl) {
#if CLANG_VERSION_MINOR > 1
info.enumValue = clang_getEnumConstantDeclValue(cursor);
#else
info.definition = clang_isCursorDefinition(cursor);
#endif
} else{
info.definition = clang_isCursorDefinition(cursor);
}
info.kind = kind;
const String usr = RTags::eatString(clang_getCursorUSR(cursor));
if (!usr.isEmpty())
mData->usrMap[usr].insert(location);
switch (info.kind) {
case CXCursor_Constructor:
case CXCursor_Destructor: {
Location parentLocation = createLocation(clang_getCursorSemanticParent(cursor));
// consider doing this for only declaration/inline definition since
// declaration and definition should know of one another
if (parentLocation.isValid()) {
CursorInfo &parent = mData->symbols[parentLocation];
parent.references.insert(location);
info.references.insert(parentLocation);
}
break; }
case CXCursor_CXXMethod: {
List<CursorInfo*> infos;
infos.append(&info);
addOverriddenCursors(cursor, location, infos);
break; }
default:
break;
}
}
return true;
}
void IndexerJob::handleReference(const CXCursor &cursor, CXCursorKind kind, const Location &location, const CXCursor &ref, const CXCursor &parent)
{
const CXCursorKind refKind = clang_getCursorKind(ref);
if (clang_isInvalid(refKind)) {
superclassTemplateMemberFunctionUgleHack(cursor, kind, location, ref, parent);
return;
}
bool isOperator = false;
if (kind == CXCursor_CallExpr && (refKind == CXCursor_CXXMethod
|| refKind == CXCursor_ConversionFunction
|| refKind == CXCursor_FunctionDecl
|| refKind == CXCursor_FunctionTemplate)) {
// these are bullshit, for this construct:
// foo.bar();
// the position of the cursor is at the foo, not the bar.
// They are not interesting for followLocation, renameSymbol or find
// references so we toss them.
// For functions it can be the position of the namespace.
// E.g. Foo::bar(); cursor is on Foo
// For constructors they happen to be the only thing we have that
// actually refs the constructor and not the class so we have to keep
// them for that.
return;
}
switch (refKind) {
case CXCursor_Constructor:
if (isImplicit(ref))
return;
break;
case CXCursor_CXXMethod:
case CXCursor_FunctionDecl:
case CXCursor_FunctionTemplate: {
CXStringScope scope = clang_getCursorDisplayName(ref);
const char *data = scope.data();
if (data) {
const int len = strlen(data);
if (len > 8 && !strncmp(data, "operator", 8) && !isalnum(data[8]) && data[8] != '_') {
if (isImplicit(ref))
return; // eat implicit operator calls
isOperator = true;
}
}
break; }
default:
break;
}
const Location reffedLoc = createLocation(ref, 0);
if (!reffedLoc.isValid())
return;
CursorInfo &refInfo = mData->symbols[reffedLoc];
if (!refInfo.symbolLength && !handleCursor(ref, refKind, reffedLoc))
return;
refInfo.references.insert(location);
CursorInfo &info = mData->symbols[location];
info.targets.insert(reffedLoc);
// We need the new cursor to replace the symbolLength. This is important
// in the following case:
// struct R { R(const &r); ... }
// R foo();
// ...
// R r = foo();
// The first cursor on foo() will be a reference to the copy constructor and
// this cursor will have a symbolLength of 1. Thus you won't be able to jump
// to foo from the o. This is fixed by making sure the newer target, if
// better, gets to decide on the symbolLength
// The !isCursor is var decls and field decls where we set up a target even
// if they're not considered references
if (!RTags::isCursor(info.kind) && (!info.symbolLength || info.bestTarget(mData->symbols).kind == refKind)) {
CXSourceRange range = clang_getCursorExtent(cursor);
unsigned start, end;
clang_getSpellingLocation(clang_getRangeStart(range), 0, 0, 0, &start);
clang_getSpellingLocation(clang_getRangeEnd(range), 0, 0, 0, &end);
info.start = start;
info.end = end;
info.definition = false;
info.kind = kind;
info.symbolLength = isOperator ? end - start : refInfo.symbolLength;
info.symbolName = refInfo.symbolName;
info.type = clang_getCursorType(cursor).kind;
switch (kind) {
case CXCursor_CallExpr:
nestedClassConstructorCallUgleHack(parent, info, refKind, reffedLoc);
// see rtags/tests/nestedClassConstructorCallUgleHack/
break;
default:
break;
}
}
Set<Location> &val = mData->references[location];
val.insert(reffedLoc);
}
bool ClangIndexer::handleCursor(const CXCursor &cursor, CXCursorKind kind, const Location &location)
{
// error() << "Got a cursor" << cursor;
std::shared_ptr<CursorInfo> &info = mData->symbols[location];
if (!info)
info = std::make_shared<CursorInfo>();
if (!info->symbolLength) {
// if (mLogFile) {
// String out;
// Log(&out) << cursor << a;
// fwrite(out.constData(), 1, out.size(), mLogFile);
// fwrite("\n", 1, 1, mLogFile);
// }
CXStringScope name = clang_getCursorSpelling(cursor);
const char *cstr = name.data();
info->symbolLength = cstr ? strlen(cstr) : 0;
info->type = clang_getCursorType(cursor).kind;
if (!info->symbolLength) {
// this is for these constructs:
// typedef struct {
// int a;
// } foobar;
//
// We end up not getting a spelling for the cursor
switch (kind) {
case CXCursor_ClassDecl:
info->symbolLength = 5;
info->symbolName = "class";
break;
case CXCursor_UnionDecl:
info->symbolLength = 5;
info->symbolName = "union";
break;
case CXCursor_StructDecl:
info->symbolLength = 6;
info->symbolName = "struct";
break;
default:
mData->symbols.remove(location);
return false;
}
} else {
info->symbolName = addNamePermutations(cursor, location);
}
CXSourceRange range = clang_getCursorExtent(cursor);
CXSourceLocation rangeStart = clang_getRangeStart(range);
CXSourceLocation rangeEnd = clang_getRangeEnd(range);
unsigned startLine, startColumn, endLine, endColumn;
clang_getPresumedLocation(rangeStart, 0, &startLine, &startColumn);
clang_getPresumedLocation(rangeEnd, 0, &endLine, &endColumn);
info->startLine = startLine;
info->startColumn = startColumn;
info->endLine = endLine;
info->endColumn = endColumn;
if (kind == CXCursor_EnumConstantDecl) {
#if CINDEX_VERSION_MINOR > 1
info->enumValue = clang_getEnumConstantDeclValue(cursor);
#else
info->definition = 1;
#endif
} else {
info->definition = clang_isCursorDefinition(cursor);
}
info->kind = kind;
// apparently some function decls will give a different usr for
// their definition and their declaration. Using the canonical
// cursor's usr allows us to join them. Check JSClassRelease in
// JavaScriptCore for an example.
const String usr = RTags::eatString(clang_getCursorUSR(clang_getCanonicalCursor(cursor)));
if (!usr.isEmpty())
mData->usrMap[usr].insert(location);
switch (info->kind) {
case CXCursor_Constructor:
case CXCursor_Destructor: {
Location parentLocation = createLocation(clang_getCursorSemanticParent(cursor));
// consider doing this for only declaration/inline definition since
// declaration and definition should know of one another
if (parentLocation.isValid()) {
std::shared_ptr<CursorInfo> &parent = mData->symbols[parentLocation];
if (!parent)
parent = std::make_shared<CursorInfo>();
parent->references.insert(location);
info->references.insert(parentLocation);
}
break; }
case CXCursor_CXXMethod: {
List<CursorInfo*> infos;
infos.append(info.get());
addOverriddenCursors(cursor, location, infos);
break; }
default:
break;
}
}
return true;
}
void ClangIndexer::handleReference(const CXCursor &cursor, CXCursorKind kind, const Location &location, const CXCursor &ref, const CXCursor &parent)
{
const CXCursorKind refKind = clang_getCursorKind(ref);
if (clang_isInvalid(refKind)) {
superclassTemplateMemberFunctionUgleHack(cursor, kind, location, ref, parent);
return;
}
bool isOperator = false;
if (kind == CXCursor_CallExpr && (refKind == CXCursor_CXXMethod
|| refKind == CXCursor_ConversionFunction
|| refKind == CXCursor_FunctionDecl
|| refKind == CXCursor_FunctionTemplate)) {
// these are bullshit, for this construct:
// foo.bar();
// the position of the cursor is at the foo, not the bar.
// They are not interesting for followLocation, renameSymbol or find
// references so we toss them.
// For functions it can be the position of the namespace.
// E.g. Foo::bar(); cursor is on Foo
// For constructors they happen to be the only thing we have that
// actually refs the constructor and not the class so we have to keep
// them for that.
return;
}
switch (refKind) {
case CXCursor_Constructor:
if (isImplicit(ref))
return;
break;
case CXCursor_CXXMethod:
case CXCursor_FunctionDecl:
case CXCursor_FunctionTemplate: {
CXStringScope scope = clang_getCursorDisplayName(ref);
const char *data = scope.data();
if (data) {
const int len = strlen(data);
if (len > 8 && !strncmp(data, "operator", 8) && !isalnum(data[8]) && data[8] != '_') {
if (isImplicit(ref))
return; // eat implicit operator calls
isOperator = true;
}
}
break; }
default:
break;
}
const Location reffedLoc = createLocation(ref);
if (!reffedLoc.isValid()) {
if (kind == CXCursor_ObjCMessageExpr) {
mData->pendingReferenceMap[RTags::eatString(clang_getCursorUSR(clang_getCanonicalCursor(ref)))].insert(location);
// insert it, we'll hook up the target and references later
handleCursor(cursor, kind, location);
}
return;
}
std::shared_ptr<CursorInfo> &refInfo = mData->symbols[reffedLoc];
if ((!refInfo || !refInfo->symbolLength) && !handleCursor(ref, refKind, reffedLoc))
return;
refInfo->references.insert(location);
std::shared_ptr<CursorInfo> &info = mData->symbols[location];
if (!info)
info = std::make_shared<CursorInfo>();
info->targets.insert(reffedLoc);
// We need the new cursor to replace the symbolLength. This is important
// in the following case:
// struct R { R(const &r); ... }
// R foo();
// ...
// R r = foo();
// The first cursor on foo() will be a reference to the copy constructor and
// this cursor will have a symbolLength of 1. Thus you won't be able to jump
// to foo from the o. This is fixed by making sure the newer target, if
// better, gets to decide on the symbolLength
// The !isCursor is var decls and field decls where we set up a target even
// if they're not considered references
if (!RTags::isCursor(info->kind) && (!info->symbolLength || info->bestTarget(mData->symbols)->kind == refKind)) {
CXSourceRange range = clang_getCursorExtent(cursor);
CXSourceLocation rangeStart = clang_getRangeStart(range);
CXSourceLocation rangeEnd = clang_getRangeEnd(range);
unsigned startLine, startColumn, endLine, endColumn;
clang_getPresumedLocation(rangeStart, 0, &startLine, &startColumn);
clang_getPresumedLocation(rangeEnd, 0, &endLine, &endColumn);
info->startLine = startLine;
info->startColumn = startColumn;
info->endLine = endLine;
info->endColumn = endColumn;
info->definition = false;
info->kind = kind;
if (isOperator) {
unsigned start, end;
clang_getSpellingLocation(rangeStart, 0, 0, 0, &start);
clang_getSpellingLocation(rangeEnd, 0, 0, 0, &end);
info->symbolLength = end - start;
} else {
info->symbolLength = refInfo->symbolLength;
}
info->symbolName = refInfo->symbolName;
info->type = clang_getCursorType(cursor).kind;
}
}