DaoRoutine* DaoClass_FindOperator( DaoClass *self, const char *oper, DaoClass *scoped )
{
DaoValue *V = NULL;
DString name = DString_WrapMBS( oper );
DaoClass_GetData( self, & name, & V, scoped );
if( V == NULL || V->type != DAO_ROUTINE ) return NULL;
return (DaoRoutine*) V;
}
static void DaoClass_GetField( DaoValue *self0, DaoProcess *proc, DString *name )
{
int tid = proc->activeRoutine->routHost ? proc->activeRoutine->routHost->tid : 0;
DaoType *type = proc->activeRoutine->routHost;
DaoClass *host = tid == DAO_OBJECT ? & type->aux->xClass : NULL;
DaoClass *self = & self0->xClass;
DString *mbs = DString_New(1);
DaoValue *value = NULL;
int rc = DaoClass_GetData( self, name, & value, host );
if( rc ){
DString_SetMBS( mbs, DString_GetMBS( self->className ) );
DString_AppendMBS( mbs, "." );
DString_Append( mbs, name );
DaoProcess_RaiseException( proc, rc, mbs->mbs );
}else{
DaoProcess_PutReference( proc, value );
}
DString_Delete( mbs );
}
static int DaoObject_CheckSetField( DaoType *self, DaoString *name, DaoType *value, DaoRoutine *ctx )
{
DaoClass *klass = (DaoClass*) self->aux;
DaoType *type = ctx->routHost;
DaoClass *host = type != NULL && type->tid == DAO_OBJECT ? (DaoClass*) type->aux : NULL;
DaoValue *data = DaoClass_GetData( klass, name->value, host );
DaoRoutine *rout;
int error = DAO_OK;
error = 0;
if( strcmp( name->value->chars, "self" ) ==0 ) return DAO_ERROR_FIELD_HIDDEN;
if( data == NULL ){
error = DAO_ERROR_FIELD_ABSENT;
}else if( data->type == DAO_NONE ){
error = DAO_ERROR_FIELD_HIDDEN;
}else if( data->xBase.subtype == DAO_CLASS_CONSTANT ){
error = DAO_ERROR_FIELD_HIDDEN; // XXX
}else{
/* data->xBase.subtype == DAO_CLASS_VARIABLE || DAO_OBJECT_VARIABLE */
if( DaoType_MatchTo( value, data->xVar.dtype, NULL ) == 0 ) return DAO_ERROR_VALUE;
}
if( error ){
DString *field = DString_NewChars( "." );
DString_Append( field, name->value );
DString_AppendChars( field, "=" );
rout = DaoClass_FindMethod( klass, field->chars, host );
DString_Delete( field );
if( rout != NULL ){
rout = DaoRoutine_MatchByType( rout, self, & value, 1, DVM_CALL );
}else{
DaoType *args[2];
args[0] = dao_type_string;
args[1] = value;
rout = DaoClass_FindMethod( klass, ".=", host );
if( rout == NULL ) return error;
rout = DaoRoutine_MatchByType( rout, self, args, 2, DVM_CALL );
}
if( rout == NULL ) return error;
}
return DAO_OK;
}
static DaoType* DaoObject_CheckGetField( DaoType *self, DaoString *name, DaoRoutine *ctx )
{
DaoClass *klass = (DaoClass*) self->aux;
DaoType *type = ctx->routHost;
DaoClass *host = type != NULL && type->tid == DAO_OBJECT ? (DaoClass*) type->aux : NULL;
DaoValue *data = DaoClass_GetData( klass, name->value, host );
DaoRoutine *rout;
int error = DAO_OK;
if( data == NULL ){
error = DAO_ERROR_FIELD_ABSENT;
}else if( data->type == DAO_NONE ){
error = DAO_ERROR_FIELD_HIDDEN;
}else{
switch( data->xBase.subtype ){
case DAO_OBJECT_VARIABLE : return data->xVar.dtype;
case DAO_CLASS_VARIABLE : return data->xVar.dtype;
case DAO_CLASS_CONSTANT : return DaoNamespace_GetType( ctx->nameSpace, data->xConst.value );
}
}
if( error ){
DString *field = DString_NewChars( "." );
DString_Append( field, name->value );
rout = DaoClass_FindMethod( klass, field->chars, host );
DString_Delete( field );
if( rout != NULL ){
rout = DaoRoutine_MatchByType( rout, self, NULL, 0, DVM_CALL );
}else{
rout = DaoClass_FindMethod( klass, ".", host );
if( rout == NULL ) return NULL;
rout = DaoRoutine_MatchByType( rout, self, & dao_type_string, 1, DVM_CALL );
}
if( rout == NULL ) return NULL;
return (DaoType*) rout->routType->aux;
}
return NULL;
}
