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// This file is part of the AspectC++ compiler 'ac++'.
// Copyright (C) 1999-2003 The 'ac++' developers (see aspectc.org)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
#include "PointCutContext.h"
#include "JoinPoint.h"
#include "IntroductionUnit.h"
#include "TransformInfo.h"
#include "Puma/ErrorStream.h"
#include "Puma/CFunctionInfo.h"
#include "Puma/CClassInfo.h"
#include "Puma/ACPointcutInfo.h"
#include "Puma/ACAspectInfo.h"
#include "Puma/CSemDatabase.h"
#include "Puma/CTree.h"
CFunctionInfo *PointCutContext::lookup_pointcut(ACAspectInfo *ai,
CFunctionInfo *fi) {
CFunctionInfo *result = 0;
const char *name = fi->Name ();
CSemDatabase *db = (CSemDatabase*)fi->SemDB ();
// think about it!
// What happens with 3 level aspect hierarchies?
// What about overloading?
// What about fully qualified pointcut names?
for (int p = 0; p < ai->PointcutInfos (); p++) {
ACPointcutInfo *pi = ai->PointcutInfo (p);
if (strcmp (pi->name (), name) == 0) {
result = pi->function ();
break;
}
}
// if the pointcut is not defined in this aspect it has to be defined in a
// base aspect that is derived from the aspect in which the virtual pointcut
// is defined
if (!result) {
// the aspect/class in which we are searching
CClassInfo *ci = ai->ClassInfo ();
// the class where the referenced pointcut is located in ...
CClassInfo *ref_class = fi->ClassScope ()->ClassInfo ();
// search the function in base aspects
for (int b = ci->BaseClasses () - 1; b >= 0; b--) {
CClassInfo *bci = ci->BaseClass (b)->Class ();
ACAspectInfo *bai = db->AspectInfo (bci);
// the class is relevant if it is an aspect an derived from ref_class
if (bai && bci->isBaseClass (ref_class, true)) {
result = lookup_pointcut (bai, fi);
if (result)
break;
}
}
}
return result;
}
CFunctionInfo *PointCutContext::lookup_pointcut (CFunctionInfo *func,
ErrorStream &err,
CTree *node) {
CFunctionInfo *result = func; // default: out = in
const char *name = func->Name ();
CSemDatabase *db = (CSemDatabase*)func->SemDB ();
// check if the name really corresponds to a pointcut
if (!db->PointcutInfo (func)) {
err << sev_error << node->token ()->location ()
<< "'" << name << "' is no named pointcut"
<< endMessage;
return 0;
}
// everything ok, if the pointcut is not member of a class or aspect
if (!func->ClassScope ())
return result;
// the class where the referenced pointcut is located in ...
CClassInfo *ref_class = func->ClassScope ()->ClassInfo ();
ACAspectInfo *ai = TI_Aspect::of (*_aspect)->aspect_info ();
// if the pointcut is declared virtual, find the real definition
if (ref_class != ai->ClassInfo () && func->isVirtual ()) {
result = lookup_pointcut (ai, func);
if (!result)
result = func;
}
if (result->isPureVirtual ()) {
err << sev_error << node->token ()->location ()
<< "no definition for pure virtual pointcut '" << name << "'"
<< endMessage;
return 0;
}
return result;
}
bool PointCutContext::in_project (CObjectInfo *obj) {
// built-in (generated constructors/destructors belong to the project if
// the corresponding class belongs to the project
if (obj->isBuiltin () && obj->FunctionInfo () &&
(obj->FunctionInfo ()->isConstructor () ||
obj->FunctionInfo ()->isDestructor ())) {
Unit *unit = obj->FunctionInfo ()->Record ()->SourceInfo ()->SrcUnit ();
return obj->SemDB()->Project ()->isBelow (unit) ||
IntroductionUnit::cast (unit);
}
Unit *unit = obj->SourceInfo ()->SrcUnit ();
return obj->SemDB()->Project ()->isBelow (unit) ||
IntroductionUnit::cast (unit);
}
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