int DaoClass_GetData( DaoClass *self, DString *name, DaoValue **value, DaoClass *thisClass )
{
DaoValue *p = NULL;
DNode *node = MAP_Find( self->lookupTable, name );
int child = thisClass && DaoClass_ChildOf( thisClass, (DaoValue*)self );
int sto, perm, up, id;
*value = NULL;
if( ! node ) return DAO_ERROR_FIELD_NOTEXIST;
perm = LOOKUP_PM( node->value.pInt );
sto = LOOKUP_ST( node->value.pInt );
up = LOOKUP_UP( node->value.pInt );
id = LOOKUP_ID( node->value.pInt );
if( self == thisClass || perm == DAO_DATA_PUBLIC || (child && perm >= DAO_DATA_PROTECTED) ){
switch( sto ){
case DAO_CLASS_VARIABLE : p = self->variables->items.pVar[id]->value; break;
case DAO_CLASS_CONSTANT : p = self->constants->items.pConst[id]->value; break;
default : return DAO_ERROR_FIELD;
}
if( p ) *value = p;
}else{
return DAO_ERROR_FIELD_NOTPERMIT;
}
return 0;
}
int DaoClass_ChildOf( DaoClass *self, DaoValue *klass )
{
DaoCdata *cdata = (DaoCdata*) klass;
if( self == NULL || klass == NULL ) return 0;
if( klass == (DaoValue*) self ) return 1;
if( klass == self->parent ) return 1;
if( self->parent == NULL ) return 0;
if( self->parent->type == DAO_CLASS ){
return DaoClass_ChildOf( (DaoClass*) self->parent, klass );
}else if( self->parent->type == DAO_CTYPE && klass->type == DAO_CTYPE ){
DaoCdata *csup = (DaoCdata*) self->parent;
return DaoCdata_ChildOf( csup->ctype->kernel->typer, cdata->ctype->kernel->typer );
}
return 0;
}
int DaoClass_ChildOf( DaoClass *self, DaoValue *klass )
{
DaoCdata *cdata = (DaoCdata*) klass;
int i;
if( self == NULL ) return 0;
if( klass == (DaoValue*) self ) return 1;
for( i=0; i<self->superClass->size; i++ ){
DaoClass *dsup = self->superClass->items.pClass[i];
DaoCdata *csup = self->superClass->items.pCdata[i];
if( dsup == NULL ) continue;
if( klass == self->superClass->items.pValue[i] ) return 1;
if( dsup->type == DAO_CLASS && DaoClass_ChildOf( dsup, klass ) ){
return 1;
}else if( csup->type == DAO_CTYPE && klass->type == DAO_CTYPE ){
if( DaoCdata_ChildOf( csup->ctype->kernel->typer, cdata->ctype->kernel->typer ) )
return 1;
}
}
return 0;
}