bool KviKvsTreeNodeSpecialCommandForeach::execute(KviKvsRunTimeContext * c)
{
KviKvsVariantList l;
l.setAutoDelete(true);
if(!m_pIterationData->evaluate(c,&l))
return false;
KviKvsSwitchList swl;
if(m_pSwitches)
{
if(!(m_pSwitches->evaluate(c,&swl)))
return false;
}
bool bIncludeEmptyScalars = swl.find('a',"all") != 0;
for(KviKvsVariant * pArg = l.first(); pArg; pArg = l.next())
{
switch(pArg->type())
{
case KviKvsVariantData::Array:
{
unsigned int uCnt = pArg->array()->size();
unsigned int idx = 0;
while(idx < uCnt)
{
// we evaluate this each time (as it may actually be killed at each iteration)
// FIXME: maybe some kind of reference counting or a observer pattern might be a bit more efficient here
// (but might be far less efficient everywhere else...)
KviKvsRWEvaluationResult * v = m_pIterationVariable->evaluateReadWrite(c);
if(!v)
return false;
KviKvsVariant * pOne = pArg->array()->at(idx);
if(pOne)
{
if(bIncludeEmptyScalars || (!pOne->isEmpty()))
{
v->result()->copyFrom(*pOne);
} else {
delete v; // we're done with it for this iteration
idx++;
continue;
}
} else {
if(bIncludeEmptyScalars)
{
v->result()->setNothing();
} else {
delete v; // we're done with it for this iteration
idx++;
continue;
}
}
delete v; // we're done with it for this iteration
if(!m_pLoop->execute(c))
{
if(c->error())
return false;
// break allowed!
if(c->breakPending())
{
c->handleBreak();
return true;
}
if(c->continuePending())
{
c->handleContinue();
idx++;
continue;
}
return false; // propagate the false return value
}
idx++;
}
}
break;
case KviKvsVariantData::Hash:
{
KviKvsHashIterator it(*(pArg->hash()->dict()));
while(KviKvsVariant * pOne = it.current())
{
// we evaluate this each time (as it may actually be killed at each iteration)
// FIXME: maybe some kind of reference counting or a observer pattern might be a bit more efficient here
// (but might be far less efficient everywhere else...)
KviKvsRWEvaluationResult * v = m_pIterationVariable->evaluateReadWrite(c);
if(!v)
return false;
if(bIncludeEmptyScalars || (!pOne->isEmpty()))
{
v->result()->copyFrom(*pOne);
} else {
delete v; // we're done with it for this iteration
++it;
continue;
}
delete v; // we're done with it for this iteration
if(!m_pLoop->execute(c))
{
if(c->error())
return false;
// break allowed!
if(c->breakPending())
{
c->handleBreak();
return true;
}
if(c->continuePending())
{
c->handleContinue();
++it;
continue;
}
return false; // propagate the false return value
}
++it;
}
}
break;
default:
if(bIncludeEmptyScalars || (!pArg->isEqualToNothing()))
{
// we evaluate this each time (as it may actually be killed at each iteration)
// FIXME: maybe some kind of reference counting or a observer pattern might be a bit more efficient here
// (but might be far less efficient everywhere else...)
KviKvsRWEvaluationResult * v = m_pIterationVariable->evaluateReadWrite(c);
if(!v)
return false;
v->result()->copyFrom(*pArg);
delete v; // we're done with it for this iteration
if(!m_pLoop->execute(c))
{
if(c->error())
return false;
// break allowed!
if(c->breakPending())
{
c->handleBreak();
return true;
}
if(c->continuePending())
{
c->handleContinue();
continue;
}
return false; // propagate the false return value
}
}
break;
}
}
return true;
}
bool process(KviKvsVariantList * pVariantList, KviKvsRunTimeContext * pContext, KviKvsParameterProcessor::ParameterFormat * pFmtArray)
{
KviKvsVariant * v = pVariantList->first();
while(pFmtArray->szName)
{
if(!v)
{
// parameter not present
// it MUST be optional
if(!(pFmtArray->uFlags & KVS_PF_OPTIONAL))
{
// bad luck
QString szError = QString(__tr2qs_ctx("Missing non-optional parameter \"%1\"", "kvs")).arg(pFmtArray->szName);
pContext->error(szError);
return false;
}
// ok, missing but optional (all the following are implicitly optional too)
// set to default values
do
{
setDefaultValue(pFmtArray);
pFmtArray++;
} while(pFmtArray->szName);
return true;
}
// here we do only "light" casts: hard ones must be done explicitly by the user
switch(pFmtArray->uType)
{
case KVS_PT_STRING:
v->asString(*((QString *)(pFmtArray->pContainer)));
if(pFmtArray->uFlags & KVS_PF_APPENDREMAINING)
{
v = pVariantList->next();
while(v)
{
*((QString *)(pFmtArray->pContainer)) += QChar(' ');
v->appendAsString(*((QString *)(pFmtArray->pContainer)));
v = pVariantList->next();
}
return true;
}
break;
case KVS_PT_STRINGLIST:
{
((QStringList *)(pFmtArray->pContainer))->clear();
QString pSz;
v->asString(pSz);
((QStringList *)(pFmtArray->pContainer))->append(pSz);
v = pVariantList->next();
while(v)
{
v->asString(pSz);
((QStringList *)(pFmtArray->pContainer))->append(pSz);
v = pVariantList->next();
}
return true;
}
break;
case KVS_PT_VARIANTLIST:
{
((KviKvsVariantList *)(pFmtArray->pContainer))->clear();
((KviKvsVariantList *)(pFmtArray->pContainer))->setAutoDelete(false);
((KviKvsVariantList *)(pFmtArray->pContainer))->append(v);
v = pVariantList->next();
while(v)
{
((KviKvsVariantList *)(pFmtArray->pContainer))->append(v);
v = pVariantList->next();
}
return true;
}
break;
case KVS_PT_NONEMPTYSTRING:
{
v->asString(*((QString *)(pFmtArray->pContainer)));
bool bDoReturn = false;
if(pFmtArray->uFlags & KVS_PF_APPENDREMAINING)
{
v = pVariantList->next();
while(v)
{
*((QString *)(pFmtArray->pContainer)) += QChar(' ');
v->appendAsString(*((QString *)(pFmtArray->pContainer)));
v = pVariantList->next();
}
bDoReturn = true;
}
if(((QString *)(pFmtArray->pContainer))->isEmpty())
{
QString szError = QString(__tr2qs_ctx("Invalid data type for parameter \"%1\": found empty string while a non empty one was expected", "kvs")).arg(pFmtArray->szName);
pContext->error(szError);
return false;
}
if(bDoReturn)
return true;
}
break;
case KVS_PT_CSTRING:
{
QString tmp;
v->asString(tmp);
if(pFmtArray->uFlags & KVS_PF_APPENDREMAINING)
{
v = pVariantList->next();
while(v)
{
*((QByteArray *)(pFmtArray->pContainer)) += ' ';
v->appendAsString(tmp);
v = pVariantList->next();
}
*((QByteArray *)(pFmtArray->pContainer)) = tmp.toUtf8();
return true;
}
*((QByteArray *)(pFmtArray->pContainer)) = tmp.toUtf8();
}
break;
case KVS_PT_NONEMPTYCSTRING:
{
QString tmp;
v->asString(tmp);
bool bDoReturn = false;
if(pFmtArray->uFlags & KVS_PF_APPENDREMAINING)
{
v = pVariantList->next();
while(v)
{
*((QByteArray *)(pFmtArray->pContainer)) += ' ';
v->appendAsString(tmp);
v = pVariantList->next();
}
*((QByteArray *)(pFmtArray->pContainer)) = tmp.toUtf8();
bDoReturn = true;
}
*((QByteArray *)(pFmtArray->pContainer)) = tmp.toUtf8();
if(((QByteArray *)(pFmtArray->pContainer))->isEmpty())
{
QString szError = QString(__tr2qs_ctx("Invalid data type for parameter \"%1\": found empty string while a non empty one was expected", "kvs")).arg(pFmtArray->szName);
pContext->error(szError);
return false;
}
if(bDoReturn)
return true;
}
break;
case KVS_PT_INT:
if(!v->asInteger(*((kvs_int_t *)(pFmtArray->pContainer))))
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "integer"))
return false;
}
break;
case KVS_PT_UINT:
{
kvs_int_t iTmp;
if(!v->asInteger(iTmp))
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "unsigned integer"))
return false;
}
if(iTmp < 0)
{
QString szError = QString(__tr2qs_ctx("Invalid data type for parameter \"%1\": found signed integer \"%2\" where type 'unsigned integer' was expected", "kvs")).arg(pFmtArray->szName).arg(iTmp);
pContext->error(szError);
return false;
}
*((kvs_uint_t *)(pFmtArray->pContainer)) = (kvs_uint_t)iTmp;
}
break;
case KVS_PT_DOUBLE:
if(!v->asReal(*((kvs_real_t *)(pFmtArray->pContainer))))
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "real"))
return false;
}
break;
case KVS_PT_HASH:
if(!v->isHash())
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "hash"))
return false;
}
else
{
*((KviKvsHash **)(pFmtArray->pContainer)) = v->hash();
}
break;
case KVS_PT_ARRAYCAST:
v->castToArray((KviKvsArrayCast *)(pFmtArray->pContainer));
break;
case KVS_PT_ARRAY:
if(!v->isArray())
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "array"))
return false;
}
else
{
*((KviKvsArray **)(pFmtArray->pContainer)) = v->array();
}
break;
case KVS_PT_BOOL:
// this never fails: anything is converted to a boolean
*((bool *)(pFmtArray->pContainer)) = v->asBoolean();
break;
case KVS_PT_VARIANT:
*((KviKvsVariant **)(pFmtArray->pContainer)) = v;
break;
case KVS_PT_HOBJECT:
if(!v->asHObject(*((kvs_hobject_t *)(pFmtArray->pContainer))))
{
if(!handleParameterTypeError(pContext, pFmtArray, v, "hobject"))
return false;
}
break;
case KVS_PT_IGNORE:
// ignore
break;
default:
qDebug("Internal error in KviKvsParameterProcessor::processAsParameters(): unknown parameter type %d", pFmtArray->uType);
return false;
break;
}
pFmtArray++;
v = pVariantList->next();
}
return true;
}