/
util.cpp
executable file
·8603 lines (8090 loc) · 251 KB
/
util.cpp
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/*****************************************************************************
*
*
* Copyright (C) 1997-2015 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <math.h>
#include <limits.h>
#include "md5.h"
#include <qregexp.h>
#include <qfileinfo.h>
#include <qdir.h>
#include <qdatetime.h>
#include <qcache.h>
#include "util.h"
#include "message.h"
#include "classdef.h"
#include "filedef.h"
#include "doxygen.h"
#include "outputlist.h"
#include "defargs.h"
#include "language.h"
#include "config.h"
#include "htmlhelp.h"
#include "example.h"
#include "version.h"
#include "groupdef.h"
#include "reflist.h"
#include "pagedef.h"
#include "debug.h"
#include "searchindex.h"
#include "doxygen.h"
#include "textdocvisitor.h"
#include "portable.h"
#include "parserintf.h"
#include "bufstr.h"
#include "image.h"
#include "growbuf.h"
#include "entry.h"
#include "arguments.h"
#include "memberlist.h"
#include "classlist.h"
#include "namespacedef.h"
#include "membername.h"
#include "filename.h"
#include "membergroup.h"
#include "dirdef.h"
#include "htmlentity.h"
#define ENABLE_TRACINGSUPPORT 0
#if defined(_OS_MAC_) && ENABLE_TRACINGSUPPORT
#define TRACINGSUPPORT
#endif
#ifdef TRACINGSUPPORT
#include <execinfo.h>
#include <unistd.h>
#endif
//------------------------------------------------------------------------
// selects one of the name to sub-dir mapping algorithms that is used
// to select a sub directory when CREATE_SUBDIRS is set to YES.
#define ALGO_COUNT 1
#define ALGO_CRC16 2
#define ALGO_MD5 3
//#define MAP_ALGO ALGO_COUNT
//#define MAP_ALGO ALGO_CRC16
#define MAP_ALGO ALGO_MD5
#define REL_PATH_TO_ROOT "../../"
//------------------------------------------------------------------------
// TextGeneratorOLImpl implementation
//------------------------------------------------------------------------
TextGeneratorOLImpl::TextGeneratorOLImpl(OutputDocInterface &od) : m_od(od)
{
}
void TextGeneratorOLImpl::writeString(const char *s,bool keepSpaces) const
{
if (s==0) return;
//printf("TextGeneratorOlImpl::writeString('%s',%d)\n",s,keepSpaces);
if (keepSpaces)
{
const char *p=s;
if (p)
{
char cs[2];
char c;
cs[1]='\0';
while ((c=*p++))
{
if (c==' ') m_od.writeNonBreakableSpace(1);
else cs[0]=c,m_od.docify(cs);
}
}
}
else
{
m_od.docify(s);
}
}
void TextGeneratorOLImpl::writeBreak(int indent) const
{
m_od.lineBreak("typebreak");
int i;
for (i=0;i<indent;i++)
{
m_od.writeNonBreakableSpace(3);
}
}
void TextGeneratorOLImpl::writeLink(const char *extRef,const char *file,
const char *anchor,const char *text
) const
{
//printf("TextGeneratorOlImpl::writeLink('%s')\n",text);
m_od.writeObjectLink(extRef,file,anchor,text);
}
//------------------------------------------------------------------------
//------------------------------------------------------------------------
// an inheritance tree of depth of 100000 should be enough for everyone :-)
const int maxInheritanceDepth = 100000;
/*!
Removes all anonymous scopes from string s
Possible examples:
\verbatim
"bla::@10::blep" => "bla::blep"
"bla::@10::@11::blep" => "bla::blep"
"@10::blep" => "blep"
" @10::blep" => "blep"
"@9::@10::blep" => "blep"
"bla::@1" => "bla"
"bla::@1::@2" => "bla"
"bla @1" => "bla"
\endverbatim
*/
QCString removeAnonymousScopes(const QCString &s)
{
QCString result;
if (s.isEmpty()) return result;
static QRegExp re("[ :]*@[0-9]+[: ]*");
int i,l,sl=s.length();
int p=0;
while ((i=re.match(s,p,&l))!=-1)
{
result+=s.mid(p,i-p);
int c=i;
bool b1=FALSE,b2=FALSE;
while (c<i+l && s.at(c)!='@') if (s.at(c++)==':') b1=TRUE;
c=i+l-1;
while (c>=i && s.at(c)!='@') if (s.at(c--)==':') b2=TRUE;
if (b1 && b2)
{
result+="::";
}
p=i+l;
}
result+=s.right(sl-p);
//printf("removeAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
return result;
}
// replace anonymous scopes with __anonymous__ or replacement if provided
QCString replaceAnonymousScopes(const QCString &s,const char *replacement)
{
QCString result;
if (s.isEmpty()) return result;
static QRegExp re("@[0-9]+");
int i,l,sl=s.length();
int p=0;
while ((i=re.match(s,p,&l))!=-1)
{
result+=s.mid(p,i-p);
if (replacement)
{
result+=replacement;
}
else
{
result+="__anonymous__";
}
p=i+l;
}
result+=s.right(sl-p);
//printf("replaceAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
return result;
}
// strip anonymous left hand side part of the scope
QCString stripAnonymousNamespaceScope(const QCString &s)
{
int i,p=0,l;
QCString newScope;
int sl = s.length();
while ((i=getScopeFragment(s,p,&l))!=-1)
{
//printf("Scope fragment %s\n",s.mid(i,l).data());
if (Doxygen::namespaceSDict->find(s.left(i+l))!=0)
{
if (s.at(i)!='@')
{
if (!newScope.isEmpty()) newScope+="::";
newScope+=s.mid(i,l);
}
}
else if (i<sl)
{
if (!newScope.isEmpty()) newScope+="::";
newScope+=s.right(sl-i);
goto done;
}
p=i+l;
}
done:
//printf("stripAnonymousNamespaceScope(`%s')=`%s'\n",s.data(),newScope.data());
return newScope;
}
void writePageRef(OutputDocInterface &od,const char *cn,const char *mn)
{
od.pushGeneratorState();
od.disable(OutputGenerator::Html);
od.disable(OutputGenerator::Man);
if (Config_getBool(PDF_HYPERLINKS)) od.disable(OutputGenerator::Latex);
if (Config_getBool(RTF_HYPERLINKS)) od.disable(OutputGenerator::RTF);
od.startPageRef();
od.docify(theTranslator->trPageAbbreviation());
od.endPageRef(cn,mn);
od.popGeneratorState();
}
/*! Generate a place holder for a position in a list. Used for
* translators to be able to specify different elements orders
* depending on whether text flows from left to right or visa versa.
*/
QCString generateMarker(int id)
{
const int maxMarkerStrLen = 20;
char result[maxMarkerStrLen];
qsnprintf(result,maxMarkerStrLen,"@%d",id);
return result;
}
static QCString stripFromPath(const QCString &path,QStrList &l)
{
// look at all the strings in the list and strip the longest match
const char *s=l.first();
QCString potential;
unsigned int length = 0;
while (s)
{
QCString prefix = s;
if (prefix.length() > length &&
qstricmp(path.left(prefix.length()),prefix)==0) // case insensitive compare
{
length = prefix.length();
potential = path.right(path.length()-prefix.length());
}
s = l.next();
}
if (length) return potential;
return path;
}
/*! strip part of \a path if it matches
* one of the paths in the Config_getList(STRIP_FROM_PATH) list
*/
QCString stripFromPath(const QCString &path)
{
return stripFromPath(path,Config_getList(STRIP_FROM_PATH));
}
/*! strip part of \a path if it matches
* one of the paths in the Config_getList(INCLUDE_PATH) list
*/
QCString stripFromIncludePath(const QCString &path)
{
return stripFromPath(path,Config_getList(STRIP_FROM_INC_PATH));
}
/*! try to determine if \a name is a source or a header file name by looking
* at the extension. A number of variations is allowed in both upper and
* lower case) If anyone knows or uses another extension please let me know :-)
*/
int guessSection(const char *name)
{
QCString n=((QCString)name).lower();
if (n.right(2)==".c" || // source
n.right(3)==".cc" ||
n.right(4)==".cxx" ||
n.right(4)==".cpp" ||
n.right(4)==".c++" ||
n.right(5)==".java" ||
n.right(2)==".m" ||
n.right(2)==".M" ||
n.right(3)==".mm" ||
n.right(3)==".ii" || // inline
n.right(4)==".ixx" ||
n.right(4)==".ipp" ||
n.right(4)==".i++" ||
n.right(4)==".inl" ||
n.right(4)==".xml"
) return Entry::SOURCE_SEC;
if (n.right(2)==".h" || // header
n.right(3)==".hh" ||
n.right(4)==".hxx" ||
n.right(4)==".hpp" ||
n.right(4)==".h++" ||
n.right(4)==".idl" ||
n.right(4)==".ddl" ||
n.right(5)==".pidl"
) return Entry::HEADER_SEC;
return 0;
}
QCString resolveTypeDef(Definition *context,const QCString &qualifiedName,
Definition **typedefContext)
{
//printf("<<resolveTypeDef(%s,%s)\n",
// context ? context->name().data() : "<none>",qualifiedName.data());
QCString result;
if (qualifiedName.isEmpty())
{
//printf(" qualified name empty!\n");
return result;
}
Definition *mContext=context;
if (typedefContext) *typedefContext=context;
// see if the qualified name has a scope part
int scopeIndex = qualifiedName.findRev("::");
QCString resName=qualifiedName;
if (scopeIndex!=-1) // strip scope part for the name
{
resName=qualifiedName.right(qualifiedName.length()-scopeIndex-2);
if (resName.isEmpty())
{
// qualifiedName was of form A:: !
//printf(" qualified name of form A::!\n");
return result;
}
}
MemberDef *md=0;
while (mContext && md==0)
{
// step 1: get the right scope
Definition *resScope=mContext;
if (scopeIndex!=-1)
{
// split-off scope part
QCString resScopeName = qualifiedName.left(scopeIndex);
//printf("resScopeName=`%s'\n",resScopeName.data());
// look-up scope in context
int is,ps=0;
int l;
while ((is=getScopeFragment(resScopeName,ps,&l))!=-1)
{
QCString qualScopePart = resScopeName.mid(is,l);
QCString tmp = resolveTypeDef(mContext,qualScopePart);
if (!tmp.isEmpty()) qualScopePart=tmp;
resScope = resScope->findInnerCompound(qualScopePart);
//printf("qualScopePart=`%s' resScope=%p\n",qualScopePart.data(),resScope);
if (resScope==0) break;
ps=is+l;
}
}
//printf("resScope=%s\n",resScope?resScope->name().data():"<none>");
// step 2: get the member
if (resScope) // no scope or scope found in the current context
{
//printf("scope found: %s, look for typedef %s\n",
// resScope->qualifiedName().data(),resName.data());
MemberNameSDict *mnd=0;
if (resScope->definitionType()==Definition::TypeClass)
{
mnd=Doxygen::memberNameSDict;
}
else
{
mnd=Doxygen::functionNameSDict;
}
MemberName *mn=mnd->find(resName);
if (mn)
{
MemberNameIterator mni(*mn);
MemberDef *tmd=0;
int minDist=-1;
for (;(tmd=mni.current());++mni)
{
//printf("Found member %s resScope=%s outerScope=%s mContext=%p\n",
// tmd->name().data(), resScope->name().data(),
// tmd->getOuterScope()->name().data(), mContext);
if (tmd->isTypedef() /*&& tmd->getOuterScope()==resScope*/)
{
int dist=isAccessibleFrom(resScope,0,tmd);
if (dist!=-1 && (md==0 || dist<minDist))
{
md = tmd;
minDist = dist;
}
}
}
}
}
mContext=mContext->getOuterScope();
}
// step 3: get the member's type
if (md)
{
//printf(">>resolveTypeDef: Found typedef name `%s' in scope `%s' value=`%s' args='%s'\n",
// qualifiedName.data(),context->name().data(),md->typeString(),md->argsString()
// );
result=md->typeString();
QCString args = md->argsString();
if (args.find(")(")!=-1) // typedef of a function/member pointer
{
result+=args;
}
else if (args.find('[')!=-1) // typedef of an array
{
result+=args;
}
if (typedefContext) *typedefContext=md->getOuterScope();
}
else
{
//printf(">>resolveTypeDef: Typedef `%s' not found in scope `%s'!\n",
// qualifiedName.data(),context ? context->name().data() : "<global>");
}
return result;
}
/*! Get a class definition given its name.
* Returns 0 if the class is not found.
*/
ClassDef *getClass(const char *n)
{
if (n==0 || n[0]=='\0') return 0;
QCString name=n;
ClassDef *result = Doxygen::classSDict->find(name);
//if (result==0 && !exact) // also try generic and protocol versions
//{
// result = Doxygen::classSDict->find(name+"-g");
// if (result==0)
// {
// result = Doxygen::classSDict->find(name+"-p");
// }
//}
//printf("getClass(%s)=%s\n",n,result?result->name().data():"<none>");
return result;
}
NamespaceDef *getResolvedNamespace(const char *name)
{
if (name==0 || name[0]=='\0') return 0;
QCString *subst = Doxygen::namespaceAliasDict[name];
if (subst)
{
int count=0; // recursion detection guard
QCString *newSubst;
while ((newSubst=Doxygen::namespaceAliasDict[*subst]) && count<10)
{
subst=newSubst;
count++;
}
if (count==10)
{
warn_uncond("possible recursive namespace alias detected for %s!\n",name);
}
return Doxygen::namespaceSDict->find(subst->data());
}
else
{
return Doxygen::namespaceSDict->find(name);
}
}
static QDict<MemberDef> g_resolvedTypedefs;
static QDict<Definition> g_visitedNamespaces;
// forward declaration
static ClassDef *getResolvedClassRec(Definition *scope,
FileDef *fileScope,
const char *n,
MemberDef **pTypeDef,
QCString *pTemplSpec,
QCString *pResolvedType
);
int isAccessibleFromWithExpScope(Definition *scope,FileDef *fileScope,Definition *item,
const QCString &explicitScopePart);
/*! Returns the class representing the value of the typedef represented by \a md
* within file \a fileScope.
*
* Example: typedef A T; will return the class representing A if it is a class.
*
* Example: typedef int T; will return 0, since "int" is not a class.
*/
ClassDef *newResolveTypedef(FileDef *fileScope,MemberDef *md,
MemberDef **pMemType,QCString *pTemplSpec,
QCString *pResolvedType,
ArgumentList *actTemplParams)
{
//printf("newResolveTypedef(md=%p,cachedVal=%p)\n",md,md->getCachedTypedefVal());
bool isCached = md->isTypedefValCached(); // value already cached
if (isCached)
{
//printf("Already cached %s->%s [%s]\n",
// md->name().data(),
// md->getCachedTypedefVal()?md->getCachedTypedefVal()->name().data():"<none>",
// md->getCachedResolvedTypedef()?md->getCachedResolvedTypedef().data():"<none>");
if (pTemplSpec) *pTemplSpec = md->getCachedTypedefTemplSpec();
if (pResolvedType) *pResolvedType = md->getCachedResolvedTypedef();
return md->getCachedTypedefVal();
}
//printf("new typedef\n");
QCString qname = md->qualifiedName();
if (g_resolvedTypedefs.find(qname)) return 0; // typedef already done
g_resolvedTypedefs.insert(qname,md); // put on the trace list
ClassDef *typeClass = md->getClassDef();
QCString type = md->typeString(); // get the "value" of the typedef
if (typeClass && typeClass->isTemplate() &&
actTemplParams && actTemplParams->count()>0)
{
type = substituteTemplateArgumentsInString(type,
typeClass->templateArguments(),actTemplParams);
}
QCString typedefValue = type;
int tl=type.length();
int ip=tl-1; // remove * and & at the end
while (ip>=0 && (type.at(ip)=='*' || type.at(ip)=='&' || type.at(ip)==' '))
{
ip--;
}
type=type.left(ip+1);
type.stripPrefix("const "); // strip leading "const"
type.stripPrefix("struct "); // strip leading "struct"
type.stripPrefix("union "); // strip leading "union"
int sp=0;
tl=type.length(); // length may have been changed
while (sp<tl && type.at(sp)==' ') sp++;
MemberDef *memTypeDef = 0;
ClassDef *result = getResolvedClassRec(md->getOuterScope(),
fileScope,type,&memTypeDef,0,pResolvedType);
// if type is a typedef then return what it resolves to.
if (memTypeDef && memTypeDef->isTypedef())
{
result=newResolveTypedef(fileScope,memTypeDef,pMemType,pTemplSpec);
goto done;
}
else if (memTypeDef && memTypeDef->isEnumerate() && pMemType)
{
*pMemType = memTypeDef;
}
//printf("type=%s result=%p\n",type.data(),result);
if (result==0)
{
// try unspecialized version if type is template
int si=type.findRev("::");
int i=type.find('<');
if (si==-1 && i!=-1) // typedef of a template => try the unspecialized version
{
if (pTemplSpec) *pTemplSpec = type.mid(i);
result = getResolvedClassRec(md->getOuterScope(),fileScope,
type.left(i),0,0,pResolvedType);
//printf("result=%p pRresolvedType=%s sp=%d ip=%d tl=%d\n",
// result,pResolvedType?pResolvedType->data():"<none>",sp,ip,tl);
}
else if (si!=-1) // A::B
{
i=type.find('<',si);
if (i==-1) // Something like A<T>::B => lookup A::B
{
i=type.length();
}
else // Something like A<T>::B<S> => lookup A::B, spec=<S>
{
if (pTemplSpec) *pTemplSpec = type.mid(i);
}
result = getResolvedClassRec(md->getOuterScope(),fileScope,
stripTemplateSpecifiersFromScope(type.left(i),FALSE),0,0,
pResolvedType);
}
//if (result) ip=si+sp+1;
}
done:
if (pResolvedType)
{
if (result)
{
*pResolvedType=result->qualifiedName();
//printf("*pResolvedType=%s\n",pResolvedType->data());
if (sp>0) pResolvedType->prepend(typedefValue.left(sp));
if (ip<tl-1) pResolvedType->append(typedefValue.right(tl-ip-1));
}
else
{
*pResolvedType=typedefValue;
}
}
// remember computed value for next time
if (result && result->getDefFileName()!="<code>")
// this check is needed to prevent that temporary classes that are
// introduced while parsing code fragments are being cached here.
{
//printf("setting cached typedef %p in result %p\n",md,result);
//printf("==> %s (%s,%d)\n",result->name().data(),result->getDefFileName().data(),result->getDefLine());
//printf("*pResolvedType=%s\n",pResolvedType?pResolvedType->data():"<none>");
md->cacheTypedefVal(result,
pTemplSpec ? *pTemplSpec : QCString(),
pResolvedType ? *pResolvedType : QCString()
);
}
g_resolvedTypedefs.remove(qname); // remove from the trace list
return result;
}
/*! Substitutes a simple unqualified \a name within \a scope. Returns the
* value of the typedef or \a name if no typedef was found.
*/
static QCString substTypedef(Definition *scope,FileDef *fileScope,const QCString &name,
MemberDef **pTypeDef=0)
{
QCString result=name;
if (name.isEmpty()) return result;
// lookup scope fragment in the symbol map
DefinitionIntf *di = Doxygen::symbolMap->find(name);
if (di==0) return result; // no matches
MemberDef *bestMatch=0;
if (di->definitionType()==DefinitionIntf::TypeSymbolList) // multi symbols
{
// search for the best match
DefinitionListIterator dli(*(DefinitionList*)di);
Definition *d;
int minDistance=10000; // init at "infinite"
for (dli.toFirst();(d=dli.current());++dli) // foreach definition
{
// only look at members
if (d->definitionType()==Definition::TypeMember)
{
// that are also typedefs
MemberDef *md = (MemberDef *)d;
if (md->isTypedef()) // d is a typedef
{
// test accessibility of typedef within scope.
int distance = isAccessibleFromWithExpScope(scope,fileScope,d,"");
if (distance!=-1 && distance<minDistance)
// definition is accessible and a better match
{
minDistance=distance;
bestMatch = md;
}
}
}
}
}
else if (di->definitionType()==DefinitionIntf::TypeMember) // single symbol
{
Definition *d = (Definition*)di;
// that are also typedefs
MemberDef *md = (MemberDef *)di;
if (md->isTypedef()) // d is a typedef
{
// test accessibility of typedef within scope.
int distance = isAccessibleFromWithExpScope(scope,fileScope,d,"");
if (distance!=-1) // definition is accessible
{
bestMatch = md;
}
}
}
if (bestMatch)
{
result = bestMatch->typeString();
if (pTypeDef) *pTypeDef=bestMatch;
}
//printf("substTypedef(%s,%s)=%s\n",scope?scope->name().data():"<global>",
// name.data(),result.data());
return result;
}
static Definition *endOfPathIsUsedClass(SDict<Definition> *cl,const QCString &localName)
{
if (cl)
{
SDict<Definition>::Iterator cli(*cl);
Definition *cd;
for (cli.toFirst();(cd=cli.current());++cli)
{
if (cd->localName()==localName)
{
return cd;
}
}
}
return 0;
}
/*! Starting with scope \a start, the string \a path is interpreted as
* a part of a qualified scope name (e.g. A::B::C), and the scope is
* searched. If found the scope definition is returned, otherwise 0
* is returned.
*/
static Definition *followPath(Definition *start,FileDef *fileScope,const QCString &path)
{
int is,ps;
int l;
Definition *current=start;
ps=0;
//printf("followPath: start='%s' path='%s'\n",start?start->name().data():"<none>",path.data());
// for each part of the explicit scope
while ((is=getScopeFragment(path,ps,&l))!=-1)
{
// try to resolve the part if it is a typedef
MemberDef *typeDef=0;
QCString qualScopePart = substTypedef(current,fileScope,path.mid(is,l),&typeDef);
//printf(" qualScopePart=%s\n",qualScopePart.data());
if (typeDef)
{
ClassDef *type = newResolveTypedef(fileScope,typeDef);
if (type)
{
//printf("Found type %s\n",type->name().data());
return type;
}
}
Definition *next = current->findInnerCompound(qualScopePart);
//printf("++ Looking for %s inside %s result %s\n",
// qualScopePart.data(),
// current->name().data(),
// next?next->name().data():"<null>");
if (next==0) // failed to follow the path
{
//printf("==> next==0!\n");
if (current->definitionType()==Definition::TypeNamespace)
{
next = endOfPathIsUsedClass(
((NamespaceDef *)current)->getUsedClasses(),qualScopePart);
}
else if (current->definitionType()==Definition::TypeFile)
{
next = endOfPathIsUsedClass(
((FileDef *)current)->getUsedClasses(),qualScopePart);
}
current = next;
if (current==0) break;
}
else // continue to follow scope
{
current = next;
//printf("==> current = %p\n",current);
}
ps=is+l;
}
//printf("followPath(start=%s,path=%s) result=%s\n",
// start->name().data(),path.data(),current?current->name().data():"<null>");
return current; // path could be followed
}
bool accessibleViaUsingClass(const SDict<Definition> *cl,
FileDef *fileScope,
Definition *item,
const QCString &explicitScopePart=""
)
{
//printf("accessibleViaUsingClass(%p)\n",cl);
if (cl) // see if the class was imported via a using statement
{
SDict<Definition>::Iterator cli(*cl);
Definition *ucd;
bool explicitScopePartEmpty = explicitScopePart.isEmpty();
for (cli.toFirst();(ucd=cli.current());++cli)
{
//printf("Trying via used class %s\n",ucd->name().data());
Definition *sc = explicitScopePartEmpty ? ucd : followPath(ucd,fileScope,explicitScopePart);
if (sc && sc==item) return TRUE;
//printf("Try via used class done\n");
}
}
return FALSE;
}
bool accessibleViaUsingNamespace(const NamespaceSDict *nl,
FileDef *fileScope,
Definition *item,
const QCString &explicitScopePart="")
{
static QDict<void> visitedDict;
if (nl) // check used namespaces for the class
{
NamespaceSDict::Iterator nli(*nl);
NamespaceDef *und;
int count=0;
for (nli.toFirst();(und=nli.current());++nli,count++)
{
//printf("[Trying via used namespace %s: count=%d/%d\n",und->name().data(),
// count,nl->count());
Definition *sc = explicitScopePart.isEmpty() ? und : followPath(und,fileScope,explicitScopePart);
if (sc && item->getOuterScope()==sc)
{
//printf("] found it\n");
return TRUE;
}
QCString key=und->name();
if (und->getUsedNamespaces() && visitedDict.find(key)==0)
{
visitedDict.insert(key,(void *)0x08);
if (accessibleViaUsingNamespace(und->getUsedNamespaces(),fileScope,item,explicitScopePart))
{
//printf("] found it via recursion\n");
return TRUE;
}
visitedDict.remove(key);
}
//printf("] Try via used namespace done\n");
}
}
return FALSE;
}
const int MAX_STACK_SIZE = 1000;
/** Helper class representing the stack of items considered while resolving
* the scope.
*/
class AccessStack
{
public:
AccessStack() : m_index(0) {}
void push(Definition *scope,FileDef *fileScope,Definition *item)
{
if (m_index<MAX_STACK_SIZE)
{
m_elements[m_index].scope = scope;
m_elements[m_index].fileScope = fileScope;
m_elements[m_index].item = item;
m_index++;
}
}
void push(Definition *scope,FileDef *fileScope,Definition *item,const QCString &expScope)
{
if (m_index<MAX_STACK_SIZE)
{
m_elements[m_index].scope = scope;
m_elements[m_index].fileScope = fileScope;
m_elements[m_index].item = item;
m_elements[m_index].expScope = expScope;
m_index++;
}
}
void pop()
{
if (m_index>0) m_index--;
}
bool find(Definition *scope,FileDef *fileScope, Definition *item)
{
int i=0;
for (i=0;i<m_index;i++)
{
AccessElem *e = &m_elements[i];
if (e->scope==scope && e->fileScope==fileScope && e->item==item)
{
return TRUE;
}
}
return FALSE;
}
bool find(Definition *scope,FileDef *fileScope, Definition *item,const QCString &expScope)
{
int i=0;
for (i=0;i<m_index;i++)
{
AccessElem *e = &m_elements[i];
if (e->scope==scope && e->fileScope==fileScope && e->item==item && e->expScope==expScope)
{
return TRUE;
}
}
return FALSE;
}
private:
/** Element in the stack. */
struct AccessElem
{
Definition *scope;
FileDef *fileScope;
Definition *item;
QCString expScope;
};
int m_index;
AccessElem m_elements[MAX_STACK_SIZE];
};
/* Returns the "distance" (=number of levels up) from item to scope, or -1
* if item in not inside scope.
*/
int isAccessibleFrom(Definition *scope,FileDef *fileScope,Definition *item)
{
//printf("<isAccesibleFrom(scope=%s,item=%s itemScope=%s)\n",
// scope->name().data(),item->name().data(),item->getOuterScope()->name().data());
static AccessStack accessStack;
if (accessStack.find(scope,fileScope,item))
{
return -1;
}
accessStack.push(scope,fileScope,item);
int result=0; // assume we found it
int i;
Definition *itemScope=item->getOuterScope();
bool memberAccessibleFromScope =
(item->definitionType()==Definition::TypeMember && // a member
itemScope && itemScope->definitionType()==Definition::TypeClass && // of a class
scope->definitionType()==Definition::TypeClass && // accessible
((ClassDef*)scope)->isAccessibleMember((MemberDef *)item) // from scope
);
bool nestedClassInsideBaseClass =
(item->definitionType()==Definition::TypeClass && // a nested class
itemScope && itemScope->definitionType()==Definition::TypeClass && // inside a base
scope->definitionType()==Definition::TypeClass && // class of scope
((ClassDef*)scope)->isBaseClass((ClassDef*)itemScope,TRUE)
);
if (itemScope==scope || memberAccessibleFromScope || nestedClassInsideBaseClass)
{
//printf("> found it\n");
if (nestedClassInsideBaseClass) result++; // penalty for base class to prevent
// this is preferred over nested class in this class
// see bug 686956
}
else if (scope==Doxygen::globalScope)
{
if (fileScope)
{
SDict<Definition> *cl = fileScope->getUsedClasses();
if (accessibleViaUsingClass(cl,fileScope,item))
{
//printf("> found via used class\n");
goto done;
}
NamespaceSDict *nl = fileScope->getUsedNamespaces();
if (accessibleViaUsingNamespace(nl,fileScope,item))
{
//printf("> found via used namespace\n");
goto done;
}
}